CN113389235A - Grooving pipe-laying equipment - Google Patents

Abstract

The invention relates to grooving and pipe-laying equipment. Grooving pipelaying apparatus comprising: a chassis; the pipe clamping device is arranged behind the underframe and used for clamping a pipeline, and a propulsion oil cylinder is arranged between the pipe clamping device and the underframe; the tunneling device is arranged in front of the underframe and is used for tunneling forwards; the tunneling device is provided with a slag storage groove, the opening of the slag storage groove faces upwards, and the slag storage groove is used for storing slag soil cut by the tunneling device; further comprising: the bucket type lifting device is arranged along the vertical direction, the lower end of the bucket type lifting device is positioned in the slag storage tank, the bucket type lifting device is provided with a lifting bucket, the lifting bucket is used for lifting the slag soil in the slag storage tank upwards, and a slag outlet at the upper end of the bucket type lifting device is positioned on one side or above the groove; and the scraper is used for scraping the soil layer above the tunneling device when moving in the up-and-down direction. Through increasing bucket type hoisting device for the dregs are sent to ground along vertical direction, and to ditch inslot or ditch groove one side by side, the problem of afterbody sediment inefficiency when having solved long distance laying pipeline.

Description

Grooving pipe-laying equipment

Technical Field

The invention relates to grooving and pipe laying equipment, which is suitable for the non-excavation field of long-distance shallow buried pipes.

Background

In shallow pipe construction, horizontal directional drilling, pipe jacking and open cut are generally adopted. The horizontal directional drill has more applications, has the characteristics of no traffic obstruction, small occupied area and high construction speed, but also has the defects of poor control of surface subsidence, small stratum adaptation range, short tunneling distance and the like; minor diameter pipe pushing jack also has the little characteristics of environmental impact, but current minor diameter pipeline pipelaying equipment generally takes afterbody muddy water to slag tap, along with pipe laying distance is longer and longer, needs to shut down repeatedly and connects the pipeline, along with the increase of slag tap distance, the efficiency of slagging tap reduces, this efficiency of laying that will directly influence the pipeline.

The traditional open cut method needs slope relief, the occupied land of the following route is wide, the quantity of required construction engineering machinery is large, the earthwork quantity is large, and great property loss is caused when the earthwork machine passes through farmlands; in addition, when the pipe is laid in the water-rich stratum, the water is firstly reduced, then the pipe is laid, and large manpower and material resources are required to be invested, so that the environmental influence is large.

Disclosure of Invention

The invention aims to provide grooving and pipe laying equipment to solve the technical problems of high manpower and material resource investment and low working efficiency in the open excavation construction process of shallow buried pipes in the prior art.

In order to achieve the purpose, the technical scheme of the grooving and pipe-laying equipment is as follows:

grooving pipelaying apparatus comprising:

a chassis;

the pipe clamping device is arranged behind the underframe and used for clamping a pipeline, and a propulsion oil cylinder is arranged between the pipe clamping device and the underframe;

the tunneling device is arranged in front of the underframe and is used for tunneling forwards;

the tunneling device is provided with a slag storage groove, the opening of the slag storage groove faces upwards, and the slag storage groove is used for storing slag soil cut by the tunneling device;

further comprising:

the bucket type lifting device is arranged along the vertical direction, the lower end of the bucket type lifting device is positioned in the slag storage tank, the bucket type lifting device is provided with a lifting bucket, the lifting bucket is used for lifting the slag soil in the slag storage tank upwards, and a slag outlet at the upper end of the bucket type lifting device is positioned above one side of the groove or right above the groove;

and the scraper is used for scraping the soil layer above the tunneling device when moving in the up-and-down direction.

The beneficial effects are that: the grooving and pipe-laying equipment disclosed by the invention has the advantages that the construction mode of half excavation is utilized, so that the occupied area of the equipment is smaller, the investment of larger cost is avoided, in the whole pipe-laying process, precipitation treatment is not needed for a water-rich stratum, and the construction efficiency and the environmental friendliness are improved; in addition, through increasing bucket elevator for the dregs are sent to ground along vertical direction, and to ditch inslot or ditch groove one side by side, realize slagging tap perpendicularly, the problem of afterbody slagging inefficiency when having solved long distance laying pipeline.

Furthermore, the grooving and pipe-laying equipment further comprises a traveling device, the traveling device is connected to the tunneling device through the stand column, the traveling device comprises a traveling frame and two groups of traveling wheels, and the two groups of traveling wheels are connected to the traveling frame and are respectively positioned on two sides of the tunneling device so as to travel on the ground on two sides of the groove.

The beneficial effects are that: through setting up running gear, can guarantee that bucket elevator is in vertical state all the time.

Furthermore, running gear still includes the dregs conveyer belt, and the front end of dregs conveyer belt rotates around vertical axis and assembles on the walking frame, the front end of dregs conveyer belt is under the slag notch.

The beneficial effects are that: design like this, can adjust the angle of dregs conveyer belt as required, make the dregs fall to the left side of slot, right side or the ditch inslot to satisfy different occasions.

Furthermore, the two groups of travelling wheels are respectively connected to a travelling frame through four-bar mechanisms, a travelling wheel adjusting oil cylinder is arranged on the travelling frame, and the travelling wheel adjusting oil cylinder enables the travelling wheels to be always supported on the ground through adjusting the four-bar mechanisms.

The beneficial effects are that: so as to adapt to the bottom surfaces with different slopes and further ensure that the bucket type lifting device is always kept in a vertical state.

Furthermore, all or part of the lift bucket is provided with the scraper.

The beneficial effects are that: therefore, the scraper is convenient to arrange, no additional device is needed to drive the scraper to move, and the structure is simplified.

Furthermore, when a scraper is arranged on part of the lifting bucket, cutting teeth are arranged on the rest of the lifting bucket and are used for digging and loosening the soil layer above the tunneling device.

The beneficial effects are that: through the synergistic action of the cutting picks and the scrapers, a relatively solid soil layer is easy to dig, and the method is also suitable for a composite stratum containing gravels.

Further, the tunneling device comprises a shell, a cutter disc is arranged at the front end of the shell, a central shaft is arranged in the shell, the front end of the central shaft and the cutter disc are assembled together in a rotation stopping mode, and a helical blade is arranged on the central shaft and used for conveying the slag soil cut off by the cutter disc to a slag storage groove.

Furthermore, a transmission sleeve and a hydraulic motor are arranged in the shell, the front end of the transmission sleeve is fixedly connected with the cutter head, the transmission sleeve is rotatably assembled in the shell, and the transmission sleeve is provided with an inner gear ring; a driving gear is arranged on a driving shaft of the hydraulic motor and is meshed with the inner gear ring to drive the transmission sleeve to rotate.

The beneficial effects are that: the driving mode is simple and compact, and is beneficial to arrangement of all parts in the shell.

Furthermore, a stirring rod is arranged on the rear side of the cutter head.

The beneficial effects are that: the cut residue soil is stirred by the stirring rod, so that the fluidity of the residue soil is improved, and the residue is convenient to discharge.

Further, the tunneling device comprises a front shell and a rear shell, the slag storage groove is formed in the front shell, the rear shell is used for connecting a pipeline, a deviation rectifying oil cylinder is arranged between the front shell and the rear shell, the front end of the deviation rectifying oil cylinder is hinged to the front shell, the rear end of the deviation rectifying oil cylinder is hinged to the rear shell, and the deviation rectifying oil cylinders are arranged in a plurality along the circumferential direction of the front shell at intervals.

The beneficial effects are that: the deviation-correcting oil cylinder can adjust the posture of the tunneling device and ensure that the tunneling device tunnels according to a set route.

Drawings

FIG. 1 is a schematic structural view of an embodiment 1 of the grooving pipe-laying apparatus of the present invention;

FIG. 2 is a schematic structural view of the tunneling device, the bucket elevator and the traveling device in FIG. 1;

FIG. 3 is a left side view of the bucket elevator and running gear of FIG. 2;

fig. 4 is a schematic structural view of the tunneling device in fig. 2;

FIG. 5 is a schematic view of the structure of the bottom frame and the pipe clamping device in FIG. 1;

FIG. 6 is a left side view of FIG. 5;

in the figure: 101. a bucket elevator; 102. a traveling device; 103. a tunneling device; 104. a chassis; 105. a pipe clamping device; 106. a pipeline; 107. a crane; 108. a power plant; 11. a chain; 12. a lift bucket; 13. a scraper; 14. a cutting pick; 15. a slag outlet; 16. a first upright post; 17. a first hydraulic motor; 20. a traveling wheel adjusting oil cylinder; 21. a second upright post; 22. a walking frame; 23. a traveling wheel; 24. a muck conveyer belt; 25. a rotary support; 26. a fan-shaped support table; 27. a support wheel; 28. a connecting frame; 29. a four-bar linkage; 30. a stirring rod; 31. a front housing; 32. a rear housing; 33. a slag storage tank; 34. a deviation rectifying oil cylinder; 35. a cutter head; 36. a central shaft; 37. a helical blade; 38. a transmission sleeve; 39. a second hydraulic motor; 41. a frame body; 42. a propulsion cylinder; 43. a propulsion adjusting oil cylinder; 51. a clamp tube body; 52. an opening and closing oil cylinder; 53. a pin shaft; 54. an arc-shaped clamping block; 55. a pipe clamping oil cylinder.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. Furthermore, the terms "upper" and "lower" are based on the orientation and positional relationship shown in the drawings and are only for convenience of description of the present invention, and do not indicate that the referred device or component must have a specific orientation, and thus, should not be construed as limiting the present invention.

The features and properties of the present invention are described in further detail below with reference to examples.

Embodiment 1 of the grooving pipe-laying apparatus of the present invention:

as shown in fig. 1, the grooving pipe-laying equipment comprises abucket elevator 101, a travelingdevice 102, atunneling device 103, achassis 104, apipe clamping device 105, acrane 107 and apower device 108; the buckettype lifting device 101, thewalking device 102, thetunneling device 103, theunderframe 104 and thepipe clamping device 105 are all positioned in a starting well, thepower device 108 is arranged in front of the starting well to provide hydraulic power for the devices, and thecrane 107 is arranged behind the starting well and used for hoisting thepipeline 106; thepipe clamping device 105 is arranged behind theunderframe 104 and is used for clamping the pipeline; thetunneling device 103 is arranged in front of theunderframe 104 and is used for tunneling forwards; thebucket elevator 101 and the travelingdevice 102 are both disposed above the headingdevice 103.

As shown in fig. 2 and 4, the headingdevice 103 includes afront housing 31 and arear housing 32, a deviation-correctingcylinder 34 is provided between thefront housing 31 and therear housing 32, the deviation-correctingcylinder 34 extends in the front-rear direction, the front end of the deviation-correctingcylinder 34 is hinged to thefront housing 31, the rear end of the deviation-correctingcylinder 34 is hinged to therear housing 32, and a plurality of deviation-correctingcylinders 34 are arranged at intervals along the circumferential direction of thefront housing 31. The principle of deviation correction of thedeviation correction cylinder 34 is the prior art, and will not be described in detail here.

In this embodiment, the front end of therear housing 32 is connected to thefront housing 31 in an inserting manner, the rear end of therear housing 32 is connected to thepipeline 106 in an inserting manner, and the joints between therear housing 32 and thefront housing 31 and between the rear housing and thepipeline 106 are provided with sealing rings.

As shown in fig. 4, acutter head 35 is provided at the front end of thefront housing 31, and thecutter head 35 has a spoke type structure. Of course, a composite cutter head construction may be used in other embodiments.

In this embodiment, a central shaft 36 is disposed in thefront housing 31, ahelical blade 37 is welded to the central shaft 36, and the front end of the central shaft 36 is assembled with thecutter head 35 through a spline in a rotation-stopping manner; atransmission sleeve 38 and a secondhydraulic motor 39 are further arranged in thefront shell 31, thetransmission sleeve 38 is rotatably assembled in thefront shell 31, the front end of thetransmission sleeve 38 is fixedly connected with thecutter head 35, an inner gear ring is arranged on the inner side of the rear end of thetransmission sleeve 38, a driving gear is arranged on an output shaft of the secondhydraulic motor 39 and is meshed with the inner gear ring, when the secondhydraulic motor 39 works, the driving gear drives thetransmission sleeve 38 to rotate, thetransmission sleeve 38 drives thecutter head 35 to rotate, thecutter head 35 drives the central shaft 36 to rotate, and thespiral blades 37 on the central shaft 36 convey the muck backwards. Wherein the secondhydraulic motor 39 may be disposed in plurality at intervals in the circumferential direction of thefront housing 31 as needed.

In this embodiment, the rear side of thecutter head 35 is further provided with a stirringrod 30, and the cut slag soil is stirred by the stirringrod 30, so that the fluidity of the slag soil is improved, and slag tapping is facilitated.

In this embodiment, aslag storage groove 33 is provided in thefront housing 31 behind the central shaft 36, and the slag storage groove is used for storing the slag soil conveyed by thehelical blade 37; wherein, the opening of theslag storage tank 33 is upward, the lower end of the buckettype lifting device 101 is arranged in theslag storage tank 33, and the buckettype lifting device 101 is used for lifting the slag in theslag storage tank 33 upward.

In this embodiment, the bottom of theslag storage tank 33 is a curved surface extending from front to back, which facilitates thebucket elevator 101 to dig the slag.

As shown in fig. 2 and 3, thebucket elevator 101 is arranged in a vertical direction, thebucket elevator 101 includes afirst column 16, and the upper end and the lower end of thefirst column 16 are respectively provided with a sprocket, and the two sprockets are in transmission connection with thechain 11. Wherein, the chain wheel at the upper end of the firstupright post 16 is a driving chain wheel which is driven by a firsthydraulic motor 17 to rotate.

In this embodiment, thechain 11 is provided with anelevator bucket 12, ascraper 13 is provided on a part of theelevator bucket 12, and thescraper 13 is used for scraping the soil layer above thetunneling device 103; the other part of theelevator car 12 is provided with cuttingteeth 14, and the cuttingteeth 14 are used for digging and loosening the soil layer above the tunneling device so that thescraper 13 scrapes the soil layer. Wherein theslag outlet 15 of thebucket elevator 101 is directly above the trench.

In the present embodiment, the ratio of the number ofblades 13 to the number ofpicks 14 is 2: 1 and twoscrapers 13 are arranged between the two picks 14.

In this embodiment, the travelingdevice 102 includes a travelingframe 22 and asecond upright 21, the travelingframe 22 is fixed to thefront housing 31 by thesecond upright 21, and thesecond upright 21 is located behind thebucket elevator 101.

In this embodiment, thewalking frame 22 is provided with amuck conveyer belt 24 and a fan-shapedsupport platform 26, and the fan-shapedsupport platform 26 is located below themuck conveyer belt 24; the front end of theslag conveyer belt 24 is rotatably assembled on thewalking frame 22 through arotary support 25, and theslag outlet 15 is positioned above the front end of theslag conveyer belt 24, wherein the rotary axis of therotary support 25 extends along the vertical direction; the rear end of theslag conveyer belt 24 is a slag discharging end, a supportingwheel 27 is arranged below the middle part of theslag conveyer belt 24, and the supportingwheel 27 can walk on the fan-shaped supportingplatform 26 to adjust a slag discharging point of the slag discharging end.

It should be noted that the tapping end can be located at one side of the groove, and can also be located above the groove; when the slag discharging end is positioned above the groove, the slag can be directly dropped onto the laid pipeline, but the friction force generated when the pipeline moves forwards is increased, so that the slag discharging device is suitable for short-distance pipeline laying; when the end of slagging tap was in one side of slot, the frictional force when can reducing the pipeline and move forward is applicable to long distance pipe laying, nevertheless needs to bury the pipeline with extra equipment.

As shown in fig. 2 and 3, the left and right sides of thewalking frame 22 are respectively connected with a connectingframe 28 through a four-bar linkage 29, the two connectingframes 28 are respectively positioned at two sides of thetunneling device 103, each connectingframe 28 is provided with two walkingwheels 23, the two walkingwheels 23 are arranged at intervals along the front and rear direction, and the walkingwheels 23 are used for walking on the bottom surfaces at two sides of the trench; in this embodiment, thewalking frame 22 is provided with a walkingwheel adjusting cylinder 20, and the walkingwheel adjusting cylinder 20 drives the four-bar linkage 29 to deform, so that the walkingwheels 23 adapt to the bottom surfaces with different slopes, which can ensure that the bucket elevator does not incline, and ensure smooth pipe laying work.

As shown in fig. 5 and 6, thebase frame 104 includes aframe body 41 and two thrustcylinders 42, the twothrust cylinders 42 are installed on theframe body 41, and driving ends of the twothrust cylinders 42 are hinged to the pipe clampingmain body 51 of thepipe clamping device 105. Wherein, twothrust cylinders 42 are arranged at intervals in the left-right direction for thepipe 106 to pass through.

In this embodiment, theframe body 41 is further provided with apropulsion adjusting cylinder 43 at a position corresponding to eachpropulsion cylinder 42, and thepropulsion adjusting cylinder 43 is used for ensuring that thepropulsion cylinders 42 propel along the front-back direction without generating deflection.

As shown in fig. 6, the pipe clampingmain body 51 is of a clamping structure, the pipe clampingmain body 51 comprises a left half body and a right half body, the upper ends of the two half bodies are hinged together, and the lower ends of the two half bodies are detachably connected together through apin shaft 53; the pipe clampingmain body 51 further comprises an opening and closingoil cylinder 52, and after thepin shaft 53 is removed, the two half bodies are far away and close to each other through the stretching of the opening and closingoil cylinder 52, so that thepipeline 106 can be installed conveniently.

In this embodiment, the pipe clampingmain body 51 is further provided with apipe clamping cylinder 55, a driving section of thepipe clamping cylinder 55 is provided with an arc-shapedclamping block 54, and the arc-shapedclamping block 54 is used for further embracing thepipeline 106 so as to meet the requirement of thepipeline 106 with a certain diameter ratio.

In this embodiment, the inner side of the arcuate clamp blocks 54 is fitted with a rubber bushing to protect the coating on the outer circumference of thepipe 106 from damage.

The pipe laying construction process of the grooving pipe laying equipment comprises the following steps:

(1) setting an originating well according to the pre-buried lines of thepipelines 106, presetting underground columns in the originating well, and installing theunderframe 104 in the originating well;

(2) assembling the buckettype lifting device 101, the travelingdevice 102 and thetunneling device 103 together, hoisting the bucket type lifting device, the travelingdevice 102 and thetunneling device 103 into a starting well, and then installing a centering tool to center the buckettype lifting device 101, the travelingdevice 102 and thetunneling device 103; then, the front end of the assembledpipeline 106 is connected with therear shell 32 of thetunneling device 103, and then thepipe clamping device 105 is installed; finally, driving thepower device 108 to the front of the starting well, connecting a pipeline, debugging equipment, and ensuring the stable and reliable operation of the grooving and pipe-laying equipment;

(3) a section ofpipeline 106 is pre-assembled through acrane 107, and thepipeline 106 needs to be lifted by thecrane 107 in an auxiliary mode in the equipment tunneling process;

(4) the starting righting tool is removed, normal tunneling is started, in the process, acutter head 35 of thetunneling device 103 is excavated, the dregs excavated by thecutter head 35 are conveyed into adreg storage groove 33 through aspiral blade 37, then the dregs are vertically and upwards conveyed by a buckettype lifting device 101, meanwhile, ascraper 13 and a cuttingtooth 14 on the buckettype lifting device 101 can also dig away soil layers above thetunneling device 103, and the dregs fall onto adreg conveyer belt 24 from adreg outlet 15 and are conveyed to one side of a groove through thedreg conveyer belt 24;

(5) in the excavation process, adjusting the stroke of a deviation-correcting oil cylinder and a travelling wheel adjusting oil cylinder in real time according to a position detection device in the excavation device and a height detection device on the ground so as to ensure the excavation direction;

(6) according to the construction of a receiving well of a pipeline embedded line, ejecting thetunneling device 103, removing thepower device 108, installing a centering tool to center the buckettype lifting device 101, thewalking device 102 and thetunneling device 103, and separating therear shell 32 of thetunneling device 103 from thepipeline 106; hoisting off a righting buckettype lifting device 101, awalking device 102 and atunneling device 103; thechassis 104 and thepipe clamping device 105 are removed and the equipment is taken off the field.

The grooving and pipe-laying equipment disclosed by the invention has the advantages that the construction mode of half excavation is utilized, and the bucket type lifting device is additionally arranged, so that the muck is conveyed to the ground along the vertical direction, and the pipe-laying efficiency is improved; the shallow pipe-burying operation realizes the integrated construction of mechanical excavation and laying.

Embodiment 2 of the grooving pipe-laying apparatus of the present invention:

the difference between the embodiment and the embodiment 1 is that in the embodiment 1, the grooving and pipe-laying equipment comprises a travelingdevice 102, the travelingdevice 103 is connected to thetunneling device 103 through the secondupright post 21, and the slag soil falls on theslag conveyer belt 24 of the travelingdevice 102 from the slag falling port of the buckettype lifting device 101 and falls on one side of the groove through the slag discharging end of theslag conveyer belt 24. In this embodiment, the grooving pipe-laying equipment does not include a traveling device, and the slag falling port of the bucket type lifting device is located on one side of the groove.

Embodiment 3 of the grooving pipe-laying apparatus of the present invention:

the difference between the present embodiment and embodiment 1 is that in embodiment 1, two sets ofroad wheels 23 are respectively connected to thewalking frame 22 through four-bar linkages 29, a roadwheel adjusting cylinder 20 is arranged on thewalking frame 22, and the roadwheel adjusting cylinder 20 makes theroad wheels 22 always support on the ground through adjusting the four-bar linkages 29. In this embodiment, two sets of walking wheels are respectively along vertical slip assembly on walking frame, are equipped with walking wheel adjusting cylinder on the walking frame, and walking wheel adjusting cylinder direct drive walking wheel is along vertical removal to make the walking wheel support subaerial all the time.

Embodiment 4 of the grooving pipe-laying apparatus of the present invention:

the embodiment is different from the embodiment 1 in that in the embodiment 1, a part of thelift bucket 12 is provided with ascraper 13, and thescraper 13 is used for scraping soil above thetunneling device 103; the other part of theelevator car 12 is provided with cuttingteeth 14, and the cuttingteeth 14 are used for digging and loosening the soil layer above the tunneling device so that thescraper 13 scrapes the soil layer. In this embodiment, to the softer area of soil layer, all set up the scraper on all the elevator buckets.

Embodiment 5 of the grooving pipe-laying apparatus of the present invention:

the present embodiment is different from embodiment 1 in that in embodiment 1, acutter disc 35 is provided at the front end of thefront housing 31, a central shaft 36 is provided in thefront housing 31, ahelical blade 37 is provided on the central shaft 36, and the front end of the central shaft 36 is fitted to thecutter disc 35 in a rotation-stopping manner. In this embodiment, only helical blade is arranged in the front shell, and the front end of the helical blade is fixedly connected to the cutter head.

Embodiment 6 of the grooving pipe-laying apparatus of the present invention:

the present embodiment is different from embodiment 1 in that in embodiment 1, thescraper 13 is provided on theelevator bucket 12. In the embodiment, the lifting bucket is not provided with a scraper, a chain wheel assembly is arranged in front of the bucket type lifting device, the chain wheel assembly comprises a chain and an upper chain wheel and a lower chain wheel, and the scraper is arranged on the chain; the slag storage groove is large, the chain assembly is located above the slag storage groove, the scraper scrapes soil layers from top to bottom under the driving of the chain, and scraped slag soil falls into the slag discharge groove and is lifted upwards by the lifting bucket. Wherein it is ensured that the scraper does not interfere with the elevator bucket. In other embodiments, picks may be provided on the chain.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims (10)

1. Grooving pipelaying apparatus comprising:

a chassis (104);

the pipe clamping device (105) is arranged behind the bottom frame (104) and used for clamping the pipeline (106), and a propulsion oil cylinder (42) is arranged between the pipe clamping device (105) and the bottom frame (104);

the tunneling device (103) is arranged in front of the underframe (104) and is used for tunneling forwards;

the device is characterized in that the tunneling device (103) is provided with a slag storage groove (33), the opening of the slag storage groove (33) faces upwards, and the slag storage groove (33) is used for storing the slag soil cut by the tunneling device (103);

further comprising:

the bucket type lifting device (101) is arranged along the vertical direction, the lower end of the bucket type lifting device (101) is positioned in the slag storage tank (33), the bucket type lifting device (101) is provided with a lifting bucket (12), the lifting bucket (12) is used for lifting slag soil in the slag storage tank (33) upwards, and a slag outlet (15) at the upper end of the bucket type lifting device (101) is positioned above one side of the groove or right above the groove;

and the scraper (13) is used for scraping the soil layer above the tunneling device (103) when moving in the up-and-down direction.

2. The slot-cutting pipe-laying apparatus according to claim 1, further comprising a traveling device (102), wherein the traveling device (102) is connected to the tunneling device (103) through a column, the traveling device (102) comprises a traveling frame (22) and two sets of traveling wheels (23), and the two sets of traveling wheels (23) are connected to the traveling frame (22) and are respectively located at both sides of the tunneling device (103) to travel on the ground at both sides of the trench.

3. A slot-cutting pipelaying apparatus according to claim 2, characterized in that the walking means (102) further comprises a slag conveyor belt (24), the front end of the slag conveyor belt (24) being rotatably mounted on the walking frame (22) about a vertical axis, the front end of the slag conveyor belt (24) being directly below the slag outlet (15).

4. The grooving pipe-laying apparatus according to claim 2, wherein the two sets of travelling wheels (23) are connected to the traveling frame (22) through four-bar linkages (29), respectively, and a travelling wheel adjusting cylinder (20) is provided on the traveling frame (22), and the travelling wheel adjusting cylinder (20) always supports the travelling wheels (23) on the ground by adjusting the four-bar linkages (29).

5. A slot-cutting pipelaying apparatus according to any one of claims 1 to 4, characterized in that all or part of the lift buckets (12) are provided with said scrapers (13).

6. A slot-cutting pipelaying apparatus according to claim 5, wherein when a scraper (13) is provided on part of the elevator buckets (12), the remaining part of the elevator buckets (12) is provided with cutting picks (14), the cutting picks (14) being used to loosen earth above the ripping apparatus (103).

7. A slot-cutting pipe-laying apparatus according to any of claims 1 to 4, characterized in that the tunneling device (103) comprises a housing, the front end of the housing is provided with a cutter head (35), a central shaft (36) is arranged in the housing, the front end of the central shaft (36) is assembled with the cutter head (35) in a rotation-stopping manner, the central shaft (36) is provided with a helical blade (37), and the helical blade (37) is used for conveying the slag soil cut by the cutter head (35) to the slag storage tank (33).

8. A slot-cutting pipelaying apparatus according to claim 7, characterized in that a drive sleeve (38) and a hydraulic motor are provided in the housing, the front end of the drive sleeve (38) is fixedly connected with the cutterhead (35), the drive sleeve (38) is rotatably mounted in the housing, the drive sleeve (38) has an inner gear ring; a driving gear is arranged on a driving shaft of the hydraulic motor and is meshed with the inner gear ring so as to drive the transmission sleeve (38) to rotate.

9. A slot-cutting pipelaying apparatus according to claim 7, wherein the rear side of the cutterhead (35) is provided with a stirring bar (30).

10. The grooving pipe-laying equipment according to any one of claims 1 to 4, wherein the tunneling device (103) comprises a front housing (31) and a rear housing (32), the slag storage tank (33) is located in the front housing (31), the rear housing (32) is used for connecting the pipeline (106), a deviation-correcting cylinder (34) is arranged between the front housing (31) and the rear housing (32), the front end of the deviation-correcting cylinder (34) is hinged with the front housing (31), the rear end of the deviation-correcting cylinder (34) is hinged with the rear housing (32), and the deviation-correcting cylinders (34) are arranged in plurality at intervals along the circumferential direction of the front housing (31).

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