CN114568052B - Crawler-type mini-tiller applicable to multiple terrains - Google Patents

Abstract

The invention discloses a crawler-type mini-tiller applicable to multiple terrains, which belongs to the field of agricultural machinery and comprises a rack, a crawler walking assembly and a rotary tillage main body, wherein the crawler walking assembly and the rotary tillage main body are arranged below the rack, the rotary tillage main body is positioned at the lower position of the rear end of the crawler walking assembly, the crawler walking assembly comprises a crawler and two walking wheels arranged in the crawler, and a crawler tensioning wheel train for automatically adjusting the tension of the crawler is arranged in the middle position of the two walking wheels in the crawler. The invention has the beneficial effects that: set up track tensioning wheel system in the middle of two walking wheels for the track all can keep stable tension when going in different terrain environments, makes the walking of ploughing machine in different terrains a little more steady, also simultaneously because the track is in steady tension state always, it is also easier to its surperficial earth's clearance.

Description

Crawler-type mini-tiller suitable for multiple terrains

Technical Field

The invention relates to the field of agricultural machinery, in particular to a crawler-type mini-tiller applicable to multiple terrains.

Background

The micro cultivator is a motor-driven micro cultivator which has power less than or equal to 7.5kW, can directly drive a rotary working part by using a driving wheel shaft, is mainly used for cultivation operations such as paddy field dry farmland cultivation, field management, facility agriculture and the like, and is also called a micro cultivator, a supervisor, a gardening machine and the like. If other matching machines are replaced and installed, the multifunctional combined machine can also perform various operations such as plowing, seeding, water pumping, pesticide spraying, film mulching, grass smashing, ditching, soil covering and the like, and can even be used as a power source for short-distance transportation and small-sized mobile power generation equipment. The machine has the characteristics of compact structure, small volume, small mass and the like, so that the machine is widely applied to the mechanical operation of ploughing in mountainous regions, hills, greenhouses, fruit (tea) gardens and other environments.

The existing crawler mini-tiller has the characteristics of stable operation, wide application to complex terrains such as mountains, hills and orchards, and the like, and due to different flatness of different terrains, the crawler can have the problem of influence on the running speed of the crawler due to different tightness when running on the ground, and in serious cases, the crawler can be broken, wheel falls off or surface soil cannot be cleaned due to the fact that the crawler has different tightness; and because the soil in mountain region, hills and orchard is impurity more, can the adhesion a large amount of impurity and earth on the track after using a period, can the operation after need the clean up, greatly reduced the availability factor of ploughing the machine a little.

Disclosure of Invention

The invention provides a crawler type mini-tiller applicable to multiple terrains, which comprises a rack, a crawler walking assembly and a rotary tillage main body, wherein the crawler walking assembly and the rotary tillage main body are arranged below the rack, the rotary tillage main body is positioned at the lower position of the rear end of the crawler walking assembly, the crawler walking assembly comprises a crawler and two walking wheels arranged in the crawler, and a crawler tensioning wheel train for automatically adjusting the tension of the crawler is arranged in the middle position of the two walking wheels in the crawler. Set up track tensioning wheel system in the middle of two walking wheels for the track all can keep stable tension when going in different terrain environments, makes the walking of ploughing machine in different terrains a little more steady, also simultaneously because the track is in steady tension state always, it is also easier to its surperficial earth's clearance.

Preferably, the track tensioning wheel train comprises a tensioning support roller, an upper tensioning roller positioned right above the tensioning support roller, a first lower tensioning roller and a second lower tensioning roller positioned below the tensioning support roller, wherein a central shaft of the tensioning support roller and central shafts of the two walking wheels are positioned on the same horizontal plane, and two ends of the tensioning support roller are fixedly installed at two ends of the two walking wheels through tensioning installation rods; go up the tensioning roller first tensioning roller and tensioning roller surface top is supported under the second in the track and install through the telescopic link on the tensioning backing roll.

Preferably, the telescopic link overcoat has expanding spring, expanding spring one end fixed mounting be in go up on tensioning roller, first tensioning roller or the second tensioning roller down, other end fixed mounting be in on the tensioning backing roll.

Preferably, the telescopic rod for mounting the upper tensioning roller is fixedly mounted on the tensioning support roller; the telescopic rod used for installing the first lower tensioning support roller and the second lower tensioning support roller is rotatably installed on the tensioning support roller, and the first lower tensioning support roller and the second lower tensioning support roller are connected through the telescopic rod.

Preferably, a telescopic spring is sleeved outside the telescopic rod between the first lower tensioning support roller and the second lower tensioning support roller, one end of the telescopic spring is fixedly installed on the first lower tensioning support roller, and the other end of the telescopic spring is fixedly installed on the second lower tensioning support roller.

The upper tensioning support roller, the first lower tensioning support roller and the second lower tensioning support roller are matched and abutted in the crawler belt, and the telescopic springs are utilized to exert the effect of stabilizing force on the three support rollers according to the change of terrain and soil quality, so that the crawler belt always keeps stable tension, and the mini-tiller can be ensured to stably run on different terrains.

Preferably, the camera subassembly is installed to the frame top, the camera subassembly includes camera support body, camera branch, is used for controlling camera branch along the rotatory horizontal drive subassembly of horizontal direction and is used for controlling camera branch along the rotatory vertical drive subassembly of vertical direction, camera support body fixed mounting be in frame top front end, horizontal drive subassembly fixed mounting be in on the camera support body, vertical drive subassembly fixed mounting be in on the horizontal drive subassembly, camera branch one end is installed vertical drive subassembly output. Utilize horizontal drive assembly control camera branch horizontal hunting, vertical drive assembly control camera branch adjustment is looked up or is overlooked the angle to the realization is to the adjustment of camera visual angle.

The mini-tiller is also provided with a mini-tiller control system, and the mini-tiller control system is controlled through the intelligent terminal so as to control activities such as camera assembly shooting and mini-tiller tilling. The camera assembly is arranged on the mini-tiller to replace a driver, and the mini-tiller is controlled through remote control, so that the purpose of unmanned driving is achieved.

Preferably, the horizontal drive subassembly includes frame, motor, action wheel, follower and horizontal drive pole, frame fixed mounting be in on the camera support body, motor fixed mounting be in on the frame, motor rotation axis rotatably installs on the camera support body, action wheel fixed mounting be in on the motor rotation axis, the follower with the action wheel meshing, horizontal drive pole fixed mounting be in on the follower, camera branch downside is installed the horizontal drive pole top. The motor drives the camera supporting rod to swing through the transmission of the driving wheel and the driven wheel.

Preferably, the top end of the horizontal driving rod is installed on the lower side of the camera supporting rod through a first installation shaft. The first installation shaft can limit the relative motion between the camera support rod and the horizontal driving rod in the swinging process along the rotating direction of the horizontal driving rod.

Preferably, the vertical driving assembly comprises a mounting seat and a vertical driving cylinder, the mounting seat is fixedly mounted on one side of the horizontal driving rod, one end of the vertical driving cylinder is mounted on the mounting seat through a second mounting shaft, and the other end of the vertical driving cylinder is mounted on the camera supporting rod through a third mounting shaft to keep away from one end of the camera.

Preferably, the top end of the horizontal driving rod is an arc-shaped surface, and an arc-shaped groove attached to the arc-shaped surface is formed in the position, corresponding to the top end of the horizontal driving rod, of the lower side of the camera supporting rod; a fixing block for mounting the first mounting shaft is further fixed on the lower side of the camera supporting rod; the first mounting shaft penetrates through the fixing block and the top end of the horizontal driving rod to mount the top end of the horizontal driving rod on the fixing block; the first installation axle axis direction with camera branch length direction is perpendicular. Through the telescopic motion of the vertical driving cylinder, the arc-shaped surface at the top end of the horizontal driving rod slides relatively on the arc-shaped groove, so that the camera supporting rod swings up and down.

Preferably, the rotary cultivator further comprises a gearbox, an engine, a starter and a handle, wherein the gearbox and the engine are installed above the rack, the starter is installed on the engine, the handle is installed at the upper position of the rear end of the rack, the rotary cultivating main body comprises a rotary cultivating support, a rotary cultivating blade and a rotary cultivating rake, and the rotary cultivating blade and the rotary cultivating rake are installed on the rotary support in a front-back mode.

Preferably, the rotary tillage knife comprises a tillage knife body and knife heads uniformly distributed on the circumferential surface of the tillage knife body along the circumferential direction, and two ends of the tillage knife body are mounted on the rotary support.

Preferably, the cutter head is triangular or quadrangular. The cutter head is arranged on the circumferential surface of the main body of the tillage cutter, and when tillage is carried out, the cutter head is pressed into soil and takes up the soil, so that the purpose of loosening the soil is achieved.

Preferably, the included angle between the plane where the tangent plane of the intersection line of the cutter head and the circumferential surface of the main body of the tilling cutter and the plane where the cutter head is located is 60-90 degrees; and the intersection line of the cutter head and the circumferential surface of the main body of the tilling cutter forms an included angle of 45-75 degrees with the rotating direction of the main body of the tilling cutter. During the design, through to tool bit shape and direction design, can not adhere on the tool bit when can be so that the soil is taken up, also improved the randomness that is distributed on ground by the turn-up soil simultaneously to the soil is smashed to pieces better to the follow-up comb nail.

Preferably, an included angle between a tangent plane where the intersection line of the cutter head and the circumferential surface of the main body of the tillage cutter and a plane where the cutter head is located is 75 degrees; and the intersection line of the cutter head and the circumferential surface of the main body of the tilling cutter forms an included angle of 60 degrees with the rotating direction of the main body of the tilling cutter.

Preferably, the surface of the main body of the tilling blade is uniformly provided with more than 8 rows of the cutter heads in the circumferential direction, and the cutter heads in each row are axially and equidistantly distributed on the surface of the main body of the tilling blade.

Preferably, the included angle between the intersection line of the two adjacent rows of the cutter heads and the circumferential surface of the main body of the tilling cutter is 60-90 degrees, and the included angle between the intersection line of the planes of the two adjacent rows of the cutter heads and the surface of the main body of the tilling cutter is 60-90 degrees.

Preferably, the rotary tillage rake comprises a rotary drum and comb nails uniformly distributed on the surface of the rotary drum, and two ends of the rotary drum are mounted on the rotary bracket.

Preferably, the section of the comb nail is cross-shaped or star-shaped. Experiments show that the comb nails are arranged into the special-shaped shapes such as cross or star shape, and the like, so that the soil mashing degree can be improved.

Preferably, the distance between the center of the rotary harrow and the rotary harrow plate is H, the radius of the rotary harrow plate is R1, the radius of the rotary harrow plate is R2, wherein (R1 + R2)/3 is formed by H- (R1 + R2) <2 (R1 + R2)/3. In the actual operation process, because the rotary tillage rake and the rotary tillage knife are in a matching relationship, if the distance between the rotary tillage rake and the rotary tillage knife is too close, large soil turned up by the rotary tillage knife can be beaten on the rotary tillage rake, so that the normal operation of the rotary tillage rake is influenced; if the distance is too far away, a longer frame is needed to bear the rotary tillage main body, and the mashing vibration of the rotary tillage rake and the soil turning vibration between the rotary tillage blades are superposed to form larger vibration, so that the operation stability of the mini-tiller is reduced. Through experiments, when the distance H between the center of the rotary tillage rake and the rotary tillage knife meets the distance, the rotary tillage rake also has good operation stability under the condition of not influencing the normal operation of the rotary tillage rake.

Preferably, the crawler traveling assembly comprises a crawler, a main traveling wheel installed inside the crawler, and a fender, the crawler is installed below the frame at a position in front of the rotary tilling blade, and the fender is installed between the crawler and the rotary tilling blade.

Preferably, the mudguard is arc-shaped, one end of the mudguard is fixedly arranged on the rack, the other end of the mudguard is a free end, and the height of the mudguard is lower than the axle center of the main travelling wheel; the mud scraping area is formed between the inner side of the mud guard and the outer side of the crawler.

The mud guard is arranged on the outer side of the track, so that soil and impurities on the outer side of the track can be scraped off from the track, the adhesion of the soil and the impurities on the track is reduced, the working efficiency of the mini-tiller is improved, and the labor intensity is reduced.

Preferably, a scraper is formed on the inner side of the fender, the lower surface of the scraper is an inclined plane inclined downwards from the fender to the track, and the distance between the top of the scraper and the outer side of the track is 0.5-2 cm.

Set up the scraper at the fender inboard, the scraper top is close to the track, scrapes earth and impurity on the track to the heavy burden of earth etc. to the track has been reduced.

Preferably, a mud scraping roller is arranged on the inner side of the fender and below the scraper, and the distance between the surface of the mud scraping roller and the outer side of the crawler is 0.1-0.5 cm.

Because the scraper can have the problem of stopping up when scraping mud volume too big in the mud scraping practice, adopt the two-stage here to scrape mud, scrape down most earth in the track through scraping the mud running roller for adnexed quantity is less on the track when the scraper is scraped mud, thereby has reduced the intensity that the scraper was scraped mud.

Compared with the prior art, the invention has the beneficial effects that:

(1) Set up track tensioning train between two walking wheels for the track all can keep stable tension when going in different terrain environments, make the walking of machine in different terrains of ploughing a little more steady, also because the track is in steady tension state always simultaneously, it is also easier to the clearance of its surface earth.

(2) The camera assembly is arranged on the mini-tiller to replace a driver, and the mini-tiller is controlled through remote control, so that the purpose of unmanned driving is achieved.

(3) Utilize horizontal drive assembly control camera branch horizontal hunting, vertical drive assembly control camera branch adjustment is looked up or is overlooked the angle to the realization is to the adjustment of camera visual angle.

(4) The rotary tillage knife is matched with the rotary tillage rake, the rotary tillage knife turns up soil from the ground during tillage, and the turned-up large soil is smashed by the rotary tillage rake, so that a good tillage effect is achieved.

(5) The cutter head is arranged on the circumferential surface of the main body of the tillage cutter, and when the tillage cutter is used for tillage, the cutter head is pressed into soil and takes up the soil, so that the purpose of loosening the soil is achieved.

(6) During the design, through to tool bit shape and direction design, can not adhere on the tool bit when can be so that the soil is taken up, also improved the randomness that is distributed on ground by the turn-up soil simultaneously to the soil is smashed to pieces better to the follow-up comb nail.

Drawings

FIG. 1 is a structural view of a preferred micro-cultivator of the present invention;

FIG. 2 is a block diagram of a preferred crawler assembly of the present invention;

FIG. 3 is a block diagram of a preferred camera assembly of the present invention;

FIG. 4 is a schematic view of the first mounting shaft according to the present invention;

FIG. 5 is a structural view of a preferred rotary tillage main body of the present invention;

FIG. 6 is a structural view of a rotary blade according to the present invention;

FIG. 7 is a first cross-sectional view of a preferred comb of the present invention;

FIG. 8 is a cross-sectional view of a preferred comb of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

As shown in fig. 1-8, the crawler-type mini-tiller applicable to various terrains comprises a frame 1, acrawler traveling assembly 7 and a rotary tillagemain body 6, wherein thecrawler traveling assembly 7 and the rotary tillagemain body 6 are installed below the frame 1, the rotary tillagemain body 6 is located at the position below the rear end of thecrawler traveling assembly 7, thecrawler traveling assembly 7 comprises acrawler 71 and two travelingwheels 72 installed inside thecrawler 71, and a crawlertensioning wheel train 76 for automatically adjusting the tension of the crawler is arranged at the middle position of the travelingwheels 72. Set up track tensioning wheel system in the middle of two walking wheels for the track all can keep stable tension when going in different terrain environments, makes the walking of ploughing machine in different terrains a little more steady, also simultaneously because the track is in steady tension state always, it is also easier to its surperficial earth's clearance.

As a preferred embodiment, as shown in fig. 2, the tracktensioning wheel train 76 comprises atensioning support roller 761, anupper tensioning roller 762 located right above thetensioning support roller 761, and a firstlower tensioning roller 763 and a secondlower tensioning roller 764 located below thetensioning support roller 761, wherein the central axis of thetensioning support roller 761 is in the same horizontal plane with the central axes of the two travellingwheels 72, and two ends of thetensioning support roller 761 are fixedly mounted at two ends of the two travellingwheels 72 throughtensioning mounting rods 765; theupper tensioning roller 762, the firstlower tensioning roller 763 and the secondlower tensioning roller 764 are surface abutted within thetrack 71 and mounted on thetensioning support roller 761 by telescopingbars 766.

In a preferred embodiment, atelescopic spring 767 is sleeved outside thetelescopic rod 766, one end of thetelescopic spring 767 is fixedly mounted on theupper tensioning roller 762, the firstlower tensioning roller 763 or the secondlower tensioning roller 764, and the other end of thetelescopic spring 767 is fixedly mounted on thetensioning support roller 761.

As a preferred embodiment, theextension bar 766 for mounting theupper tension roller 762 is fixedly mounted on thetension support roller 761; thetelescopic bar 766 for mounting the first lowertension support roller 763 and the second lowertension support roller 764 is rotatably mounted on thetension support roller 761, and the first lowertension support roller 763 and the second lowertension support roller 764 are connected by thetelescopic bar 766.

In a preferred embodiment, atelescopic spring 767 is sleeved around thetelescopic rod 766 between the first lowertension support roller 763 and the second lowertension support roller 764, and one end of the telescopic spring is fixedly mounted on the first lower tension support roller and the other end of the telescopic spring is fixedly mounted on the second lower tension support roller.

The upper tensioning support roller, the first lower tensioning support roller and the second lower tensioning support roller are matched and abutted in the crawler belt, and the telescopic springs are utilized to exert the effect of stabilizing force on the three support rollers according to the change of terrain and soil quality, so that the crawler belt always keeps stable tension, and the mini-tiller can be ensured to stably run on different terrains.

As a preferred embodiment, as shown in fig. 3,camera subassembly 8 is installed to frame 1 top, andcamera subassembly 8 includescamera support body 81,camera branch 82, is used for controllingcamera branch 82 along the rotatoryhorizontal drive subassembly 83 of horizontal direction and is used for controllingcamera branch 82 along the rotatoryvertical drive subassembly 84 of vertical direction,camera support body 81 fixed mounting be in frame 1 top front end,horizontal drive subassembly 83 fixed mounting be in on thecamera support body 81,vertical drive subassembly 84 fixed mounting be in on thehorizontal drive subassembly 83,camera branch 82 one end is installedvertical drive subassembly 84 output. Utilize horizontal drive assembly control camera branch horizontal hunting, vertical drive assembly control camera branch adjustment is looked up or is overlooked the angle to the realization is to the adjustment of camera visual angle.

The mini-tiller is also provided with a mini-tiller control system, and the mini-tiller control system is controlled through the intelligent terminal so as to control activities such as camera assembly shooting and mini-tiller tilling. The camera assembly is arranged on the mini-tiller to replace a driver, and the mini-tiller is controlled through remote control, so that the purpose of unmanned driving is achieved.

Horizontal drive subassembly 83 includesframe 831,motor 832,action wheel 833,follower 834 andhorizontal drive arm 835,frame 831 fixed mounting be in on thecamera support body 81,motor 832 fixed mounting be in on theframe 831,motor 82 rotation axis rotatably installs on thecamera support body 81,action wheel 833 fixed mounting be in on themotor 82 rotation axis,follower 834 withaction wheel 833 meshing,horizontal drive arm 835 fixed mounting be in on thefollower 834,camera branch 82 downside is installed thehorizontal drive arm 835 top. The motor drives the camera supporting rod to swing through the transmission of the driving wheel and the driven wheel.

Ahorizontal drive bar 835 is mounted at the top by a first mountingshaft 836 to the underside of thecamera post 82. The first installation shaft can limit the relative motion between the camera support rod and the horizontal driving rod in the swinging process along the rotating direction of the horizontal driving rod.

Vertical drive assembly 84 includes mountingpad 841 andvertical actuating cylinder 842, mountingpad 841 fixed mounting is inhorizontal drive bar 835 one side,vertical actuating cylinder 842 one end is installed throughsecond installation axle 843 on the mounting pad, and the other end is installed throughthird installation axle 844 and is kept away fromcamera 845 one end oncamera branch 82.

The top end of thehorizontal driving rod 835 is an arc-shaped surface, and an arc-shaped groove attached to the arc-shaped surface is formed in the position, corresponding to the top end of thehorizontal driving rod 835, of the lower side of thecamera supporting rod 82; a fixingblock 821 for installing the first installation shaft is further fixed on the lower side of thecamera support rod 82; the first mountingshaft 836 penetrates through the fixingblock 821 and the top end of thehorizontal driving rod 835 to mount the top end of thehorizontal driving rod 835 on the fixingblock 821; the first mountingshaft 836 is axially perpendicular to the length of thecamera support rod 82. Through the telescopic motion of the vertical driving cylinder, the arc-shaped surface at the top end of the horizontal driving rod slides relatively on the arc-shaped groove, and the camera supporting rod swings up and down.

Thegearbox 2 and theengine 3 are installed above the frame 1, the starter 4 is installed on theengine 3, thecrawler walking assembly 7 and the rotary tillagemain body 6 are installed below the frame 1, thehandle 5 is installed at an upper position at the rear end of the frame 1, and the rotary tillagemain body 6 is located at a lower position at the rear end of thecrawler walking assembly 7; as shown in fig. 5, therotary tillage body 6 includes arotary tillage frame 61, arotary tillage blade 62 and arotary tillage rake 63, and therotary tillage blade 62 and the rotary tillage rake are mounted on therotary tillage frame 61 in a front-rear manner. The rotary tillage cutter is matched with the rotary tillage harrow, soil is turned up from the ground by the rotary tillage cutter during tillage, and the turned-up large soil is smashed by the rotary tillage harrow, so that a good tillage effect is achieved.

As shown in fig. 6, therotary blade 62 includes ablade body 621 and cuttingheads 622 uniformly distributed on the circumferential surface of theblade body 621 in the circumferential direction, and both ends of theblade body 621 are mounted on therotary support 61.

The cuttinghead 622 is triangular or quadrangular. The cutter head is arranged on the circumferential surface of the main body of the tillage cutter, and when the tillage cutter is used for tillage, the cutter head is pressed into soil and takes up the soil, so that the purpose of loosening the soil is achieved.

The included angle between the tangent plane of the intersection line of thecutter head 622 and the circumferential surface of themain body 621 of the tilling cutter and the plane of thecutter head 622 is 60-90 degrees; and the intersection line of thecutter head 622 and the circumferential surface of themain body 621 of the tilling cutter forms an included angle of 45-75 degrees with the rotating direction of themain body 621 of the tilling cutter. During the design, through to tool bit shape and direction design, can not adhere on the tool bit when can be so that the soil is taken up, also improved the randomness that is distributed on ground by the turn-up soil simultaneously to the soil is smashed to pieces better to the follow-up comb nail.

The included angle between the tangent plane of the intersection line of thecutter head 622 and the circumferential surface of themain body 621 of the tilling cutter and the plane of thecutter head 622 is 75 degrees; and the intersection line of thecutter head 622 and the circumferential surface of themain body 621 of the tilling cutter forms an included angle of 60 degrees with the rotating direction of themain body 621 of the tilling cutter.

The surface of themain body 621 is uniformly provided with more than 8 rows of the cutting heads 622 in the circumferential direction, and each row of the cutting heads 622 is axially and equidistantly distributed on the surface of themain body 621.

The included angle between the intersection line of the two adjacent rows of the cutter heads 622 and the circumferential surface of themain body 621 is 60-90 degrees, and the included angle between the intersection line of the planes of the two adjacent rows of the cutter heads 622 and the surface of themain body 621 is 60-90 degrees.

Therotary harrow 63 comprises arotary drum 631 and combnails 632 uniformly distributed on the surface of therotary drum 631, and both ends of therotary drum 631 are mounted on therotary bracket 61.

As shown in fig. 7 and 8, the comb pins 632 have a cross-shaped or star-shaped cross-section. Experiments show that the comb nails are arranged into the special-shaped shapes such as cross or star shapes, and the mashing degree of the comb nails to soil can be improved.

The distance H between the center of therotary harrow 63 and therotary tillage blade 62, the radius of the rotary tillage blade is R1, the radius of the rotary tillage blade is R2, wherein (R1 + R2)/3 is composed of H- (R1 + R2) <2 (R1 + R2)/3. In the actual operation process, because the rotary harrow and the rotary tillage cutter are in a matching relationship, if the distance between the rotary harrow and the rotary tillage cutter is too close, large soil turned up by the rotary tillage cutter can be beaten on the rotary harrow, so that the normal operation of the rotary harrow is influenced; if the distance is too far away, a longer frame is needed to bear the rotary tillage main body, and the mashing vibration of the rotary tillage rake and the soil turning vibration between the rotary tillage blades are superposed to form larger vibration, so that the operation stability of the mini-tiller is reduced. Through experiments, when the distance H between the center of the rotary tillage rake and the rotary tillage knife meets the distance, the rotary tillage rake also has good operation stability under the condition of not influencing the normal operation of the rotary tillage rake.

Thecrawler traveling assembly 7 includes acrawler 71, amain traveling wheel 72 installed inside thecrawler 71, thecrawler 71 being installed below the frame 1 at a position in front of therotary blade 62, and afender 73 installed between thecrawler 71 and therotary blade 62.

As shown in fig. 2, thefender 73 is arc-shaped, and one end thereof is fixedly mounted on the frame 1, and the other end thereof is a free end, and the height thereof is lower than the axis of themain running wheel 72; the inner side of themudguard 73 and the outer side of thecrawler 71 form a mud scraping area.

The mud guard is arranged on the outer side of the track, so that soil and impurities on the outer side of the track can be scraped off from the track, the adhesion of the soil and the impurities on the track is reduced, the working efficiency of the mini-tiller is improved, and the labor intensity is reduced.

And ascraper 74 is formed on the inner side of themudguard 73, the lower surface of thescraper 74 is an inclined plane inclined downwards from themudguard 73 to thecrawler 71, and the distance between the top of the scraper and the outer side of the crawler is 0.5-2 cm.

Set up the scraper at the fender inboard, the scraper top is close to the track, scrapes earth and impurity on the track to the heavy burden of earth etc. to the track has been reduced.

And a mudscraping roller wheel 75 is arranged at the position below thescraper 74 on the inner side of themudguard 73, and the distance between the surface of the mudscraping roller wheel 75 and the outer side of thecrawler 71 is 0.1-0.5 cm.

Because the scraper can have the problem of stopping up when scraping mud volume too big in the mud scraping practice, adopt the two-stage to scrape mud here, scrape most earth down in the track through scraping the mud running roller for adnexed quantity is less on the track when the scraper is scraped mud, thereby has reduced the intensity that the scraper was scraped mud.

Anarc baffle plate 64 is arranged at the rear part of therotary tillage rake 63 and is used for preventing soil carried out by the rotary tillage rake from splashing backwards.

While the foregoing specification illustrates and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the precise forms disclosed herein and is not to be interpreted as excluding the existence of additional embodiments that are also intended to be encompassed by the present invention as modified within the spirit and scope of the invention as described herein. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (4)

1. A crawler-type mini-tiller suitable for multiple terrains is characterized by comprising a rack, a crawler walking assembly and a rotary tillage main body, wherein the crawler walking assembly and the rotary tillage main body are installed below the rack;

the camera assembly is mounted above the rack and comprises a camera frame body, a camera supporting rod, a horizontal driving assembly and a vertical driving assembly, wherein the horizontal driving assembly is used for controlling the camera supporting rod to rotate along the horizontal direction, the vertical driving assembly is used for controlling the camera supporting rod to rotate along the vertical direction, the camera frame body is fixedly mounted at the front end above the rack, the horizontal driving assembly is fixedly mounted on the camera frame body, the vertical driving assembly is fixedly mounted on the horizontal driving assembly, and one end of the camera supporting rod is mounted at the output end of the vertical driving assembly;

the horizontal driving assembly comprises a base, a motor, a driving wheel, a driven wheel and a horizontal driving rod, the base is fixedly mounted on the camera frame body, the motor is fixedly mounted on the base, the motor rotating shaft is rotatably mounted on the camera frame body, the driving wheel is fixedly mounted on the motor rotating shaft, the driven wheel is meshed with the driving wheel, the horizontal driving rod is fixedly mounted on the driven wheel, and the lower side of the camera supporting rod is mounted at the top end of the horizontal driving rod;

the top end of the horizontal driving rod is arranged on the lower side of the camera supporting rod through a first mounting shaft;

the vertical driving assembly comprises a mounting seat and a vertical driving cylinder, the mounting seat is fixedly mounted on one side of the horizontal driving rod, one end of the vertical driving cylinder is mounted on the mounting seat through a second mounting shaft, and the other end of the vertical driving cylinder is mounted on the camera supporting rod through a third mounting shaft and is far away from one end of the camera;

the top end of the horizontal driving rod is an arc-shaped surface, and an arc-shaped groove attached to the arc-shaped surface is formed in the position, corresponding to the top end of the horizontal driving rod, of the lower side of the camera supporting rod; a fixing block for mounting the first mounting shaft is further fixed on the lower side of the camera supporting rod; the first mounting shaft penetrates through the fixing block and the top end of the horizontal driving rod to mount the top end of the horizontal driving rod on the fixing block; the axial direction of the first mounting shaft is vertical to the length direction of the camera supporting rod;

the crawler tensioning wheel system comprises a tensioning support roller, an upper tensioning roller positioned right above the tensioning support roller, a first lower tensioning roller and a second lower tensioning roller positioned below the tensioning support roller, wherein a central shaft of the tensioning support roller and central shafts of the two walking wheels are positioned on the same horizontal plane, and two ends of the tensioning support roller are fixedly installed at two ends of the two walking wheels through tensioning installation rods; go up the tensioning roller first tensioning roller with tensioning roller surface top is supported under the second in the crawler belt and install through the telescopic link on the tensioning backing roll.

2. The mini tiller of claim 1, wherein the telescoping rod is sleeved with a telescoping spring, one end of the telescoping spring is fixedly mounted on the upper tensioning roller, the first lower tensioning roller or the second lower tensioning roller, and the other end of the telescoping spring is fixedly mounted on the tensioning support roller.

3. The crawler micro-cultivator applicable to multiple terrains according to claim 2, wherein the telescopic rod for mounting the upper tensioning roller is fixedly mounted on the tensioning support roller; the telescopic rod used for installing the first lower tensioning support roller and the second lower tensioning support roller is rotatably installed on the tensioning support roller, and the first lower tensioning support roller and the second lower tensioning support roller are connected through the telescopic rod.

4. The crawler-type mini-tiller applicable to various terrains as claimed in claim 3, wherein a telescopic spring is sleeved outside a telescopic rod between the first lower tensioning support roller and the second lower tensioning support roller, one end of the telescopic spring is fixedly installed on the first lower tensioning support roller, and the other end of the telescopic spring is fixedly installed on the second lower tensioning support roller.

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