CN113431119A - Dedicated hydraulic pressure of miniature excavator is cut - Google Patents

Abstract

The invention is suitable for the technical field of excavators, and provides a hydraulic shear special for a miniature excavator, which comprises a body assembly, wherein the body assembly comprises a top plate, a fixed seat is vertically arranged at the bottom of the top plate, two hydraulic cylinders are arranged below the top plate, and each hydraulic cylinder is hinged with the fixed seat; one end of the fixed seat, which is far away from the top plate, is hinged with two hydraulic shear bodies, and output shafts of the two hydraulic cylinders are respectively hinged with the two hydraulic shear bodies; the side wall of each hydraulic shear body is provided with a connecting piece, and the connecting pieces are detachably connected with the hydraulic shear bodies; when a user needs to replace the teeth, a pulling force is applied to the teeth so that the inserting key on the connecting piece is separated from the slot in the hydraulic shear body, and then the connecting piece can be taken down; when needing to install, exert a thrust to tooth to make the inserted key on the connecting piece enter into the slot, make this device need not to change whole hydraulic pressure and cut, when resources are saved, the staff of being convenient for operates.

Description

Dedicated hydraulic pressure of miniature excavator is cut

Technical Field

The invention belongs to the technical field of excavators, and particularly relates to a hydraulic shear special for a miniature excavator.

Background

The hydraulic shears resemble a large mouth used to bite into the pieces, which can bite into the metal material. In the processing of construction waste, hydraulic shears are often mounted to the excavator arm to facilitate shearing of metal or other hard materials in the construction waste.

The teeth on the existing hydraulic shears are easy to damage, and the direct replacement of the hydraulic shears is not only inconvenient, but also can cause certain resource waste; on the other hand, the existing oil contains certain impurities, and if the impurities are directly poured into an oil tank, pipeline blockage is easy to occur.

Disclosure of Invention

The invention provides a hydraulic shear special for a miniature excavator, and aims to solve the problems that teeth on the conventional hydraulic shear are easy to damage, and direct replacement of the hydraulic shear is inconvenient and causes certain resource waste; on the other hand, the existing oil contains certain impurities, and if the impurities are directly poured into an oil tank, the problem of pipeline blockage is easy to occur.

The hydraulic shear special for the mini excavator comprises a body assembly, wherein the body assembly comprises a top plate, a fixed seat is vertically arranged at the bottom of the top plate, and the fixed seat is fixedly connected with the top plate; two hydraulic cylinders are arranged below the top plate, are symmetrically distributed along the fixed seat, and are hinged with the fixed seat; one end of the fixed seat, which is far away from the top plate, is hinged with two hydraulic shear bodies, and output shafts of the two hydraulic cylinders are respectively hinged with the two hydraulic shear bodies; the side wall of each hydraulic shear body is provided with a connecting piece, the connecting pieces are detachably connected with the hydraulic shear bodies, and a plurality of teeth are uniformly distributed on the side wall of each connecting piece.

Preferably, the device further comprises an oil supply assembly; the oil supply assembly comprises an oil tank, and the oil tank is positioned at the top of the top plate and is fixedly connected with the top plate; oil pumps are arranged on two sides of the oil tank, and each oil pump is fixedly connected with the top plate; and the two hydraulic cylinders are respectively communicated with the oil tank through the two oil pumps.

Preferably, the device also comprises a filtering component; the filter assembly comprises a filter box, the filter box is positioned above the oil tank, and the filter box is communicated with the oil tank through a liquid inlet pipe; the top of the filter box is provided with a liquid inlet hole.

Preferably, a filter screen layer is arranged in the filter box, and the filter screen layer is detachably connected with the filter box; an activated carbon layer is arranged below the filter screen layer, and the activated carbon layer is detachably connected with the filter box.

Preferably, locking bolts are arranged at the tops of two ends of the filter screen layer and the activated carbon layer; the bottoms of the two ends of the filter screen layer and the activated carbon layer are both provided with threaded seats; the filter screen layer and the activated carbon layer are detachably connected with the filter box through the locking bolt and the threaded seat.

Preferably, the side wall of the connecting piece is provided with at least one inserting key; the inside of the hydraulic shear body is provided with a slot corresponding to the inserting key, and the inserting key is matched with the slot.

Preferably, a liquid inlet of the oil pump is communicated with the oil tank, and an oil pipe is arranged at a liquid outlet of the oil pump; one end of the oil pipe is communicated with the oil pump, and the other end of the oil pipe is communicated with the hydraulic cylinder.

Preferably, the outer wall of the oil pipe is provided with a ball valve, and the ball valve is communicated with the oil pipe.

Preferably, a plurality of mounting holes are formed in the side wall of the fixed seat; the mounting holes are linearly arranged, and the distance between every two adjacent mounting holes is the same.

Preferably, an observation window is embedded in the side wall of the oil tank, and the observation window is fixedly connected with the oil tank.

Compared with the prior art, the invention has the beneficial effects that: by arranging the inserting key and the slot, when a user needs to replace the teeth, a pulling force is applied to the teeth, so that the inserting key on the connecting piece is separated from the slot in the hydraulic shear body, and the connecting piece can be taken down; when needing to install, exert a thrust to tooth to make the inserted key on the connecting piece enter into the slot, make this device need not to change whole hydraulic pressure and cut, when resources are saved, the staff of being convenient for operates.

By arranging the filter box, the filter screen layer is provided with the plurality of screen holes, so that the filter screen layer filters the entering liquid through the screen holes, large particles in the liquid are prevented from directly entering the oil tank, and the pipeline is effectively prevented from being blocked; and through locking bolt and screw thread seat, the staff of being convenient for changes the filter screen layer, reaches the purpose of practicing thrift the cost.

Drawings

FIG. 1 is a front view of the present invention in its entirety;

FIG. 2 is a partial cross-sectional view of the body of the hydraulic shear of the present invention;

FIG. 3 is a cross-sectional view of a filtration tank of the present invention;

FIG. 4 is an enlarged view of the structure at A on the top plate of FIG. 1;

in the figure: 1. a body assembly; 11. a top plate; 12. a fixed seat; 13. a hydraulic cylinder; 14. a hydraulic shear body; 15. a connecting member; 16. teeth; 17. inserting a key; 18. a slot; 19. mounting holes; 2. an oil supply assembly; 21. an oil tank; 22. an oil pump; 23. an oil pipe; 24. a ball valve; 25. an observation window; 3. a filter assembly; 31. a filter box; 32. a liquid inlet pipe; 33. a liquid inlet hole; 34. a screen layer; 35. an activated carbon layer; 36. locking the bolt; 37. a threaded seat.

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 specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, a hydraulic shear special for a mini excavator comprises abody assembly 1, wherein thebody assembly 1 comprises atop plate 11, a fixedseat 12 is vertically arranged at the bottom of thetop plate 11, and the fixedseat 12 is fixedly connected with thetop plate 11; twohydraulic cylinders 13 are arranged below thetop plate 11, the twohydraulic cylinders 13 are symmetrically distributed along thefixed seat 12, and eachhydraulic cylinder 13 is hinged with the fixedseat 12; one end of the fixedseat 12, which is far away from thetop plate 11, is hinged with twohydraulic shear bodies 14, and output shafts of the twohydraulic cylinders 13 are respectively hinged with the twohydraulic shear bodies 14; the side wall of eachhydraulic shear body 14 is provided with a connectingpiece 15, the connectingpieces 15 are detachably connected with thehydraulic shear bodies 14, and a plurality ofteeth 16 are uniformly distributed on the side wall of each connectingpiece 15.

The side wall of the connectingpiece 15 is provided with at least oneinserting key 17; thehydraulic shear body 14 is internally provided with aslot 18 corresponding to theinserting key 17, and theinserting key 17 is matched with theslot 18. A plurality ofmounting holes 19 are formed in the side wall of the fixedseat 12; themounting holes 19 are arranged in a straight line, and the distance between twoadjacent mounting holes 19 is the same.

In the present embodiment, thetop plate 11 is provided to support thefixing base 12 and theoil supply unit 2 by thetop plate 11. By arranging thefixed seat 12, the fixedseat 12 supports the twohydraulic cylinders 13 and the twohydraulic shear bodies 14 to rotate. By arranging thehydraulic shear bodies 14, when the output shaft of thehydraulic cylinder 13 extends out, the twohydraulic shear bodies 14 rotate on the fixedseat 12 until the two hydraulic shear bodies are contacted with each other, so that objects are bitten into pieces; when the output shaft of thehydraulic cylinder 13 is retracted, the twohydraulic shear bodies 14 are expanded. By providing theteeth 16, the greater the number of theteeth 16, the greater the contact area of the connectingmember 15 with the object. Wherein, the side wall of the connectingpiece 15 can also be provided with a cutting knife which is sharp, thus accelerating the crushing efficiency of the objects.

By arranging theinserting key 17 and theslot 18, when a user needs to replace thetooth 16, a pulling force is applied to thetooth 16, so that theinserting key 17 on the connectingpiece 15 is separated from theslot 18 in thehydraulic shear body 14, and the connectingpiece 15 can be taken down; when the hydraulic shear needs to be installed, a thrust is applied to theteeth 16, so that theinserting keys 17 on the connectingpiece 15 enter theinserting grooves 18, the wholehydraulic shear body 14 does not need to be replaced, resources are saved, and meanwhile, the hydraulic shear is convenient for workers to operate.

Through setting up mountinghole 19, the user can be attached fixingbase 12 on the excavator, then passes mountinghole 19 with fastening bolt to fix fastening bolt in the hole of beating in advance on the excavator, can realize fixingbase 12's installation. The larger the number of mountingholes 19, the more fastening bolts are mounted, and the stability of the device on the excavator can be improved.

Referring to fig. 1 and 4, anoil supply unit 2 is further included; theoil supply assembly 2 comprises anoil tank 21, and theoil tank 21 is positioned at the top of thetop plate 11 and is fixedly connected with thetop plate 11; oil pumps 22 are arranged on two sides of theoil tank 21, and eachoil pump 22 is fixedly connected with thetop plate 11; the twohydraulic cylinders 13 are respectively communicated with theoil tank 21 through two oil pumps 22.

A liquid inlet of theoil pump 22 is communicated with theoil tank 21, and a liquid outlet of theoil pump 22 is provided with anoil pipe 23; one end of theoil pipe 23 is communicated with theoil pump 22, and the other end of theoil pipe 23 is communicated with thehydraulic cylinder 13. The outer wall of theoil pipe 23 is provided with aball valve 24, and theball valve 24 is communicated with theoil pipe 23. Anobservation window 25 is embedded in the side wall of theoil tank 21, and theobservation window 25 is fixedly connected with theoil tank 21.

In the present embodiment, by providing theoil tank 21, theoil pump 22 and theoil pipe 23, wherein theoil pump 22 is drivingly connected to theoil tank 21, theoil tank 21 is communicated with thehydraulic cylinder 13 through theoil pipe 23, so that the oil in theoil tank 21 can be pumped into thehydraulic cylinder 13 through theoil pump 22, at this time, the pressure in thehydraulic cylinder 13 is increased, the output shaft of thehydraulic cylinder 13 is extended, and in addition, the oil in thehydraulic cylinder 13 can be returned into theoil tank 21 through theoil pipe 23, at this time, the pressure is decreased, and the output shaft of thehydraulic cylinder 13 is retracted.

By providing theball valve 24, a user can control whether the oil in theoil tank 21 flows into thehydraulic cylinder 13 by screwing theball valve 24; on the other hand, by rotating theball valve 24, the flow rate of the oil can be controlled. By arranging theobservation window 25, a user can know the height of the oil in theoil tank 21 through theobservation window 25, so that the oil in theoil tank 21 is prevented from being too little; the user can install the level gauge inoil tank 21, and the design of this level gauge is convenient for the direct-viewing understanding oil height in theoil tank 21 of staff.

Please refer to fig. 1 and fig. 3, further comprising afilter assembly 3; thefiltering component 3 comprises afiltering tank 31, thefiltering tank 31 is positioned above theoil tank 21, and thefiltering tank 31 is communicated with theoil tank 21 through aliquid inlet pipe 32; the top of thefilter tank 31 has an inlet hole 33. Afilter screen layer 34 is arranged in thefilter box 31, and thefilter screen layer 34 is detachably connected with thefilter box 31; an activatedcarbon layer 35 is arranged below thefilter screen layer 34, and the activatedcarbon layer 35 is detachably connected with thefilter box 31.

The top parts of the two ends of thefilter screen layer 34 and the activatedcarbon layer 35 are respectively provided with a lockingbolt 36; threaded seats 37 are arranged at the bottoms of the two ends of thefilter screen layer 34 and the activatedcarbon layer 35; thefilter screen layer 34 and the activatedcarbon layer 35 are detachably connected with thefilter box 31 through a lockingbolt 36 and a threaded seat 37.

In the present embodiment, thefilter tank 31 is provided so that thefilter tank 31 provides support for thefilter mesh layer 34 and the activatedcarbon layer 35. Wherein the rear surface accessible hinge ofrose box 31 rotates the connection chamber door, and the user both can changefilter screen layer 34 andactive carbon layer 35 through rotating the chamber door to can directly changefilter screen layer 34 andactive carbon layer 35 through feed liquor hole 33, make this device provide two kinds of replacement modes for the user, convenient to use person selects according to actual conditions.

Through setting upfilter screen layer 34, because a plurality of meshes have on thefilter screen layer 34, makefilter screen layer 34 filter the fluid that gets into through the mesh, prevent that the large-scale particulate matter in the liquid from directly entering intooil tank 21, effectively preventing that the pipeline from taking place blocking phenomenon. Through setting up activatedcarbon layer 35, also have the sieve mesh on this activatedcarbon layer 35, and the sieve mesh diameter on the activatedcarbon layer 35 generally is less than the sieve mesh diameter on thefilter screen layer 34, makes activatedcarbon layer 35 can further filter fluid, effectively avoids the particulate matter in the liquid to enter into in theoil tank 21.

By arranging the lockingbolt 36 and the threaded seat 37, when a user needs to replace thefilter screen layer 34, the lockingbolt 36 is firstly rotated to enable the lockingbolt 36 to ascend while rotating until the lockingbolt 36 is separated from the threaded seat 37, then thefilter screen layer 34 is taken down and replaced by a newfilter screen layer 34, then the lockingbolt 36 is rotated again to enable the lockingbolt 36 to descend while rotating until the locking bolt enters the threaded seat 37, and then thefilter screen layer 34 can be installed inside thefilter box 31. In which the activatedcarbon layer 35 is also replaced in the same manner.

In summary, when the device is used, firstly, a user attaches the fixingseat 12 to the excavator, then the fastening bolt penetrates through the mountinghole 19 and is fixed in a hole which is drilled in the excavator in advance, and then the device can be mounted on the excavator; and then theoil pump 22 is started to enable oil in theoil tank 21 to flow into thehydraulic cylinder 13, and at the moment, the output shaft of thehydraulic cylinder 13 extends out, so that the twohydraulic shear bodies 14 are driven to rotate on the fixedseat 12 until the two hydraulic shear bodies are contacted with each other, and then the object is bitten into pieces.

When a user needs to supplement oil in theoil tank 21, the oil is poured into thefilter tank 31 through the liquid inlet hole 33, and at the moment, thefilter screen layer 34 filters the entering liquid through the screen holes, so that large particles in the liquid are prevented from directly entering theoil tank 21 through theliquid inlet pipe 32, and the pipeline is effectively prevented from being blocked; and through lockingbolt 36 and screw thread seat 37, the staff of being convenient for changes filterscreen layer 34, reaches the purpose of saving cost.

If theteeth 16 on thehydraulic shear body 14 are seriously worn, a pulling force is applied to theteeth 16 to separate the insertingkey 17 on the connectingpiece 15 from the insertinggroove 18 in thehydraulic shear body 14, and then the connectingpiece 15 can be taken down; when the hydraulic shear needs to be installed, a thrust is applied to theteeth 16, so that the insertingkeys 17 on the connectingpiece 15 enter the insertinggrooves 18, the wholehydraulic shear body 14 does not need to be replaced, resources are saved, and meanwhile, the hydraulic shear is convenient for workers to operate.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a dedicated hydraulic pressure of miniature excavator is cut, includes body subassembly (1), its characterized in that: the body assembly (1) comprises a top plate (11), a fixed seat (12) is vertically arranged at the bottom of the top plate (11), and the fixed seat (12) is fixedly connected with the top plate (11);

two hydraulic cylinders (13) are arranged below the top plate (11), the two hydraulic cylinders (13) are symmetrically distributed along the fixed seat (12), and each hydraulic cylinder (13) is hinged with the fixed seat (12);

one end, far away from the top plate (11), of the fixed seat (12) is hinged with two hydraulic shear bodies (14), and output shafts of the two hydraulic cylinders (13) are respectively hinged with the two hydraulic shear bodies (14);

the side wall of each hydraulic shear body (14) is provided with a connecting piece (15), the connecting pieces (15) are detachably connected with the hydraulic shear bodies (14), and a plurality of teeth (16) are uniformly distributed on the side wall of each connecting piece (15).

2. The hydraulic shears special for the mini excavator as claimed in claim 1, wherein: the oil supply device also comprises an oil supply assembly (2);

the oil supply assembly (2) comprises an oil tank (21), and the oil tank (21) is positioned at the top of the top plate (11) and fixedly connected with the top plate (11);

oil pumps (22) are arranged on two sides of the oil tank (21), and each oil pump (22) is fixedly connected with the top plate (11);

the two hydraulic cylinders (13) are communicated with the oil tank (21) through the two oil pumps (22) respectively.

3. The hydraulic shears special for the mini excavator as claimed in claim 2, wherein: also comprises a filtering component (3);

the filtering assembly (3) comprises a filtering tank (31), the filtering tank (31) is positioned above the oil tank (21), and the filtering tank (31) is communicated with the oil tank (21) through a liquid inlet pipe (32);

the top of the filter box (31) is provided with a liquid inlet hole (33).

4. The hydraulic shears special for the mini excavator according to claim 3, wherein: a filter screen layer (34) is arranged in the filter box (31), and the filter screen layer (34) is detachably connected with the filter box (31);

an activated carbon layer (35) is arranged below the filter screen layer (34), and the activated carbon layer (35) is detachably connected with the filter box (31).

5. The hydraulic shears special for the mini excavator as claimed in claim 4, wherein: locking bolts (36) are arranged at the tops of two ends of the filter screen layer (34) and the activated carbon layer (35);

the bottoms of the two ends of the filter screen layer (34) and the activated carbon layer (35) are provided with threaded seats (37);

the filter screen layer (34) and the activated carbon layer (35) are detachably connected with the filter box (31) through the locking bolt (36) and the threaded seat (37).

6. The hydraulic shears special for the mini excavator as claimed in claim 1, wherein: the side wall of the connecting piece (15) is provided with at least one inserting key (17);

the inside of the hydraulic shear body (14) is provided with a slot (18) corresponding to the inserting key (17), and the inserting key (17) is matched with the slot (18).

7. The hydraulic shears special for the mini excavator as claimed in claim 2, wherein: a liquid inlet of the oil pump (22) is communicated with the oil tank (21), and a liquid outlet of the oil pump (22) is provided with an oil pipe (23);

one end of the oil pipe (23) is communicated with the oil pump (22), and the other end of the oil pipe (23) is communicated with the hydraulic cylinder (13).

8. The hydraulic shears special for the mini excavator according to claim 7, wherein: the outer wall of the oil pipe (23) is provided with a ball valve (24), and the ball valve (24) is communicated with the oil pipe (23).

9. The hydraulic shears special for the mini excavator as claimed in claim 1, wherein: a plurality of mounting holes (19) are formed in the side wall of the fixed seat (12);

the mounting holes (19) are arranged in a straight line, and the distance between every two adjacent mounting holes (19) is the same.

10. The hydraulic shears special for the mini excavator as claimed in claim 2, wherein: an observation window (25) is embedded in the side wall of the oil tank (21), and the observation window (25) is fixedly connected with the oil tank (21).

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