CN114032983B - Scraper knife device and bulldozer - Google Patents

Abstract

The invention belongs to the technical field of earthmoving equipment and discloses a scraper knife device and an earthmover, wherein the scraper knife device comprises a scraper knife, a locking component, a connecting component and a driving component, wherein the scraper knife comprises a scraper knife body and two auxiliary scraper knives which are respectively hinged at two ends of the scraper knife body, and each auxiliary scraper knife is provided with a first position and a second position, the first position is positioned at the end part of the scraper knife body along the length direction, and the second position is positioned at the upper end of the scraper knife body along the height direction; the locking assembly can lock the auxiliary shovel blade at a first position or a second position; the connecting assembly is used for rotatably connecting the scraper knife to the vehicle body; the driving assembly is used for driving the connecting assembly to move so as to drive the scraper knife to be close to or far away from the shoveled plane. This spiller device can be according to the length of operating condition adjustment spiller, has improved the practicality and the commonality of spiller device, and has improved the work efficiency of spiller device, and the spiller device of being convenient for passes through narrower region, the transportation of being convenient for.

Description

Scraper knife device and bulldozer

Technical Field

The invention relates to the technical field of bulldozer equipment, in particular to a scraper knife device and a bulldozer.

Background

The front end of the bulldozer is provided with a scraper knife device, and the bulldozer can complete the operations of bulldozing, soil shoveling, soil filling and the like through the lifting, the rotation and the inclination of the scraper knife device. The scraper knife of the scraper knife device of the existing bulldozer is of an integral structure, and the scraper knife cannot be adjusted according to actual working conditions in the working process, so that the universality of the scraper knife device is poor, the practicability is poor, and the working efficiency is low.

Disclosure of Invention

The invention aims to provide a scraper knife device and a bulldozer, and aims to solve the problems that the scraper knife device in the prior art is poor in universality, poor in practicability and low in working efficiency due to the fact that the length of a scraper knife is not adjustable.

In order to achieve the purpose, the invention adopts the following technical scheme:

a blade apparatus, comprising:

the scraper knife comprises a scraper knife body and two auxiliary scraper knives, the two auxiliary scraper knives are respectively hinged to two ends of the scraper knife body, and each auxiliary scraper knife is provided with a first position located at the end part of the scraper knife body along the length direction and a second position located at the upper end of the scraper knife body along the height direction;

a locking assembly capable of locking the secondary blade in the first position or the second position;

a coupling assembly for rotatably coupling the blade to a vehicle body;

and the driving assembly is used for driving the connecting assembly to move so as to drive the scraper knife to be close to or far away from the shoveled plane.

Preferably, the auxiliary shovel blade comprises a rectangular auxiliary shovel blade and a right-angled triangle auxiliary shovel blade, the rectangular auxiliary shovel blade is provided with a first end and a second end which are opposite and spaced, the first end of the rectangular auxiliary shovel blade can be rotatably connected with the shovel blade body, and the second end of the rectangular auxiliary shovel blade can be detachably connected with the right-angled triangle auxiliary shovel blade.

Preferably, the scraper knife body, the rectangular auxiliary scraper knife and the right-angled triangular auxiliary scraper knife are all provided with saw-toothed blades at one ends close to the shoveled plane.

Preferably, the locking assembly includes a first locking member and a second locking member, the first locking member locking the secondary blade to the blade body when the secondary blade is in the first position, and the second locking member locking the secondary blade to the blade body when the secondary blade is in the second position.

Preferably, coupling assembling includes link assembly, link assembly includes first pole of articulated and second pole, first pole still with the spiller body is articulated, the second pole still with the vehicle body is articulated, drive assembly includes the hydro-cylinder, the both ends of hydro-cylinder connect respectively in the second pole with the vehicle body, the hydro-cylinder can drive the motion of second pole, in order to drive the spiller is close to or keeps away from by the shovel plane.

Preferably, the rectangular auxiliary scraper knife comprises a plurality of rectangular scraper knife portions which are connected in sequence, the rectangular scraper knife portion which is closest to the scraper knife body is rotatably connected with the scraper knife body, and the rectangular scraper knife portion which is closest to the right-angled triangular auxiliary scraper knife is detachably connected with the right-angled triangular auxiliary scraper knife.

Preferably, the blade device further comprises a leveling system, the leveling system comprising:

the laser emitter is fixedly arranged on the shoveled plane;

the laser receiver is fixedly arranged on the scraper knife body and is used for receiving a laser signal emitted by the laser emitter;

the controller, the controller can receive the signal of telecommunication that laser receiver sent, and the basis signal of telecommunication control drive assembly drives coupling assembling motion, in order to drive the spiller is close to or keeps away from by the shovel plane.

A bulldozer comprises the blade device.

Preferably, the bulldozer further comprises:

an engine;

the input shaft of the first gear mechanism is in transmission connection with the output shaft of the engine, and the first gear mechanism comprises two output shafts;

the output shafts of the two first gear mechanisms and the two hydraulic transmission systems are arranged in a one-to-one correspondence manner and are in transmission connection;

the two second gear mechanisms and the two hydraulic transmission systems are arranged in a one-to-one correspondence manner, and an input shaft of the second gear mechanism is in transmission connection with the hydraulic transmission systems;

and the two steering wheels and the output shafts of the two second gear mechanisms are arranged in a one-to-one correspondence manner and are in transmission connection.

Preferably, the first gear mechanism includes an input gear fixedly disposed on an input shaft of the first gear mechanism, and two output gears fixedly connected to output shafts of the two first gear mechanisms, respectively, and transmission ratios of the input gear and the two output gears are equal.

The invention has the beneficial effects that:

the invention provides a scraper knife device and a bulldozer. This spiller device, articulate in the both ends of spiller body through two vice spillers, two vice spillers have the first position that is located the spiller body along length direction's tip, and be located the second position of the upper end of spiller body along direction of height, specifically, when the length of spiller body is widened to needs, according to operating condition, rotate one of two vice spillers to the first position, or all rotate two vice spillers to the first position, lock vice spiller in the spiller body through locking Assembly again, coupling assembling is used for rotating the spiller and connects in the vehicle body, rethread drive assembly drives coupling assembling motion, thereby it is close to by the spiller plane to drive the spiller, in order to realize leveling by the spiller plane, after accomplishing the processing to being shoveled plane, drive assembly drives the spiller again and keeps away from by the spiller plane. The two auxiliary scraper knives are hinged to the two ends of the scraper knife body, and the length of the scraper knife can be adjusted according to actual working conditions, so that the practicability and the universality of the scraper knife device are improved, and the working efficiency of the scraper knife device can be effectively improved; meanwhile, due to the arrangement, the scraper knife device can conveniently pass through a narrow area, and the transportation is facilitated.

Drawings

FIG. 1 is a schematic view of a secondary blade of a blade assembly according to an exemplary embodiment of the present invention in a first position;

FIG. 2 is a schematic view of a secondary blade of the blade assembly of the present invention in a second position;

FIG. 3 is a schematic view of a bulldozer according to an embodiment of the present invention, taken from a first angle;

FIG. 4 is a schematic view of a bulldozer according to an embodiment of the present invention, taken from a second angle;

FIG. 5 is a first flowchart of the operation of the bulldozer according to the exemplary embodiment of the present invention;

FIG. 6 is a second flowchart of the operation of the bulldozer according to the embodiment of the present invention.

In the figure:

1. a scraper knife; 11. a scraper knife body; 111. a first connecting seat; 12. an auxiliary shovel blade; 121. a rectangular auxiliary shovel blade; 122. a right-angled triangle auxiliary shovel blade; 1221. a third through hole; 13. a blade;

2. a connecting assembly; 21. a connecting rod assembly; 211. a first lever; 212. a second lever; 22. a first connecting rod; 23. a second connecting rod; 24. a third connecting rod;

3. an oil cylinder;

4. a leveling system; 41. a laser transmitter; 42. a laser receiver; 43. a controller;

5. an engine;

6. a first gear mechanism;

7. a hydraulic transmission system;

8. a second gear mechanism;

9. a steering wheel;

10. a second support bar;

20. a vehicle body;

31. a first locking member; 32. and a second locking member.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of 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.

In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

The invention provides a scraper knife device and a bulldozer, as shown in fig. 1 and 2, the scraper knife device comprises a scraper knife 1, a locking assembly, a connecting assembly 2 and a driving assembly, wherein the scraper knife 1 comprises a scraper knife body 11 and two auxiliary scraper knives 12, the two auxiliary scraper knives 12 are respectively hinged at two ends of the scraper knife body 11, and the auxiliary scraper knives 12 are provided with a first position at the end part of the scraper knife body 11 along the length direction and a second position at the upper end of the scraper knife body 11 along the height direction; the locking assembly can lock the secondary blade 12 in the first position or the second position; the connecting assembly 2 is used for rotatably connecting the blade 1 to the vehicle body 20; the driving assembly is used for driving the connecting assembly 2 to move so as to drive the scraper knife 1 to approach or depart from a shoveled plane.

This spiller device, as shown in fig. 1 and 2, through articulating two vice spillers 12 in the both ends of spiller body 11, two vice spillers 12 have the primary importance that is located spiller body 11 along length direction's both ends, and be located the secondary importance of spiller body 11 along the upper end of direction of height, concretely, when the length of spiller body 11 needs to be widened, according to operating mode, rotate one of two vice spillers 12 to the primary importance, or all rotate two vice spillers 12 to the primary importance, lock vice spiller 12 in spiller body 11 through locking Assembly again, coupling Assembly 2 is used for rotating spiller 1 and connects in vehicle body 20, rethread drive assembly drives coupling Assembly 2 and moves, thereby it is close to by the shovel plane to drive spiller 1, in order to realize leveling by the shovel plane, after accomplishing the processing to being shoveled the plane, drive assembly drives spiller 1 again and keeps away from by the shovel plane. The two auxiliary scraper knives 12 are hinged to the two ends of the scraper knife body 11, so that the length of the scraper knife 1 can be adjusted according to actual working conditions, the practicability and the universality of the scraper knife device are improved, and the working efficiency of the scraper knife device can be effectively improved; meanwhile, due to the arrangement, the scraper knife device can conveniently pass through a narrow area, and the transportation is facilitated.

In this embodiment, the shoveled plane is the ground surface.

As shown in fig. 1 and 2, the auxiliary blade 12 includes a rectangular auxiliary blade 121 and a right-angled triangular auxiliary blade 122, the rectangular auxiliary blade 121 has a first end and a second end which are opposite and spaced, the first end of the rectangular auxiliary blade 121 can be rotatably connected to the blade body 11, and the second end of the rectangular auxiliary blade 121 can be detachably connected to the right-angled triangular auxiliary blade 122. So set up, this spiller device's spiller 1 can be used for leveling by the shovel plane, also can be used for building the irrigation canals and ditches. Specifically, when the blade 1 is used for building a trapezoid ditch and/or leveling a shoveled plane, one of the right-angle walls of the right-angle triangular auxiliary blade 122 is connected with the second end of the rectangular auxiliary blade 121, that is, one of the right-angle walls of the right-angle triangular auxiliary blade 122 is detachably connected with the side wall of the end of the rectangular auxiliary blade 121 far away from the blade body 11, so that when the two auxiliary blades 12 are located at the first position, the blade 1 is trapezoid, and thus can be used for building a trapezoid ditch, it can be understood that the rectangular auxiliary blade 121 and the right-angle triangular auxiliary blade 122 can also be used for leveling a shoveled plane in this connection manner; when a rectangular ditch needs to be built and/or a shoveled plane needs to be leveled, the two right-angled triangular auxiliary shoveling knives 122 connected to the two auxiliary shoveling knives 12 are respectively detached from the corresponding rectangular auxiliary shoveling knives 121, so that the shoveling knife 1 is rectangular and can be used for building the rectangular ditch, and it can be understood that the connecting mode can also be used for leveling the shoveled plane. Thereby improving the practicability and the universality of the scraper knife device. In other embodiments, the shape of the right angle triangular secondary blade 122 may be other shapes.

As shown in fig. 1 and 2, the blade body 11, the rectangular auxiliary blade 121, and the right-angled triangular auxiliary blade 122 are provided with saw-toothed blades 13 at ends thereof close to the surface to be shoveled. Set up the blade into flat blade cutting by the shovel plane for prior art, this spiller device is the zigzag through setting up blade 13, and zigzag blade 13 has effectively improved and has leveled the level efficiency by the shovel plane, and can effectively reduce blade 13 at the destroyed risk of in-process structure, has improved blade 13's life. In other embodiments, blade 13 may also be a flat blade.

As shown in fig. 1, the locking assembly includes a first locking member 31 and a second locking member 32, the first locking member 31 locks the sub-blade 12 to the blade body 11 when the sub-blade 12 is located at the first position, and the second locking member 32 locks the sub-blade 12 to the blade body 11 when the sub-blade 12 is located at the second position. In this way, the relative position of the auxiliary blade 12 and the blade body 11 is prevented from changing during transportation or operation of the blade 1.

Specifically, two first connection seats 111 are provided at intervals in the length direction at the upper end of the blade body 11 along the height direction of the blade body 11, and when the sub-blade 12 is located at the second position, the second locking member 32 locks the first connection seats 111 and the sub-blade 12.

Further specifically, as shown in fig. 1 and 3, the present embodiment exemplarily shows that the rectangular sub-blade 121 is locked to the blade body 11 at the second position by the second locking member 32. The first connecting seat 111 is provided with two opposite and spaced first through holes, the rectangular auxiliary blade 121 is provided with a second through hole, the right-angled triangular auxiliary blade 122 is provided with a third through hole 1221, and the second locking member 32 is a bolt, specifically, when the right-angled triangular auxiliary blade 122 of the auxiliary blade 12 is connected to the rectangular auxiliary blade 121, the bolt sequentially passes through one first through hole, the second through hole, the third through hole 1221 and the other first through hole to connect the rectangular auxiliary blade 121 of the first connecting seat 111 and the auxiliary blade 12 with the right-angled triangular auxiliary blade 122; when the right-angled triangle auxiliary blade 122 of the auxiliary blade 12 is detached from the rectangular auxiliary blade 121, the bolt sequentially passes through one first through hole, the second through hole and the other first through hole to connect the first connecting seat 111 with the rectangular auxiliary blade 121 of the auxiliary blade 12. Thereby, when the auxiliary blade 12 is located at the second position, the auxiliary blade 12 is locked to the blade body 11. In other embodiments, a hanging ring may be disposed on one of the main body 11 and the rectangular auxiliary blade 121, and a hook may be disposed on the other, and the hook is connected to the hanging ring.

More specifically, as shown in fig. 1 to 4, the two ends of the blade body 11 along the length direction are respectively provided with a fourth through hole, the rectangular auxiliary blade 121 is provided with a fifth through hole, the first locking member 31 is a bolt, and when the auxiliary blade 12 is located at the first position, the bolt sequentially penetrates through the fourth through hole and the fifth through hole to connect the auxiliary blade 12 to the blade body 11. Thereby, when the auxiliary blade 12 is located at the first position, the auxiliary blade 12 is locked to the blade body 11.

As shown in fig. 1 and 3, the connecting assembly 2 includes a connecting rod assembly 21, the connecting rod assembly 21 includes a first rod 211 and a second rod 212 which are hinged to each other, the first rod 211 is further hinged to the blade body 11, the second rod 212 is further hinged to the vehicle body 20, the driving assembly includes an oil cylinder 3, two ends of the oil cylinder 3 are respectively connected to the second rod 212 and the vehicle body 20, and the oil cylinder 3 can drive the second rod 212 to move so as to drive the blade 1 to approach or leave the plane to be shoveled. Specifically, when the plane to be shoveled needs to be leveled by using the shovel blade 1, the oil cylinder 3 drives the second rod 212 to move, and the first rod 211 is hinged to the second rod 212, so that the first rod 211 is driven to move, and the shovel blade body 11 is close to the plane to be shoveled; after finishing leveling, the oil cylinder 3 drives the second rod 212 to move, so as to drive the first rod 211 to move, so that the scraper knife body 11 is far away from a shoveled plane. Wherein, including articulated first pole 211 and second pole 212 through setting up link assembly 21, be the straight-bar for among the prior art connecting rod, effectively reduced link assembly 21's space occupancy, improved the practicality of spiller device.

Specifically, as shown in fig. 1, the number of the connecting rod assemblies 21 and the number of the oil cylinders 3 are two, the two oil cylinders 3 and the two connecting rod assemblies 21 are arranged and connected in a one-to-one correspondence, and the two connecting rod assemblies 21 are arranged at intervals along the length direction of the blade body 11. So set up to improve the hydro-cylinder 3 and drive the stability that the spiller body 11 is close to or is kept away from by the shovel plane.

Specifically, as shown in fig. 1, 3 and 4, the connecting assembly 2 further includes two first connecting rods 22, the two first connecting rods 22 are respectively located at two sides of the vehicle body 20 in the width direction, one ends of the two first connecting rods 22 are respectively hinged to the vehicle body 20, and the other ends of the two first connecting rods 22 are respectively hinged to the blade body 11. Wherein, the two connecting rod assemblies 21 are both located between the two first connecting rods 22. Therefore, when the oil cylinder 3 drives the connecting rod assembly 21 to move, the first connecting rod 22 is synchronously driven to rotate, and the stability of the oil cylinder 3 driving the scraper knife body 11 to be close to or far away from a shoveled plane is further improved. It is understood that the length direction of the blade body 11 and the width direction of the vehicle body 20 are parallel.

Specifically, as shown in fig. 1, 3 and 4, the connecting assembly 2 further includes two second connecting rods 23, the two second connecting rods 23 and the two first connecting rods 22 are arranged in one-to-one correspondence, one end of each second connecting rod 23 is detachably connected to the blade body 11, and the other end of each second connecting rod 23 is detachably connected to the first connecting rod 22. Two second connecting rods 23 are used for supporting the scraper knife body 11 to prevent the scraper knife body 11 from changing with the angle of the included angle that is by the shovel plane when leveling by the shovel plane, thereby further improving the practicality and the reliability of the scraper knife device.

Further specifically, the second connecting rod 23 is a telescopic rod. Wherein, head rod 22 is articulated with spiller body 11, and spiller body 11 can rotate relative head rod 22, when needs adjust spiller body 11 and the angle of the contained angle that is by the shovel plane, the length of adjustment second connecting rod 23, and spiller body 11 rotates relative head rod 22 to the realization is adjusted spiller body 11 and is spayed the contained angle that the plane was, and the length adjustment of telescopic link finishes the back, the length of fixed telescopic link. It will be appreciated that when the blade body 11 is rotated, the first rod 211 of the linkage assembly 21 rotates relative to the second rod 212. The specific structure of the telescopic rod belongs to the prior art, and is not described herein again.

Specifically, as shown in fig. 1, the connecting assembly 2 further includes two third connecting rods 24, two second connecting rods 23 and two first connecting rods 22 are disposed in one-to-one correspondence, one end of each third connecting rod 24 is detachably connected to the blade body 11, the other end of each third connecting rod 24 is detachably connected to the first connecting rod 22, and the two third connecting rods 24 are located between the two first connecting rods 22. The two third connecting rods 24 are also used to support the blade body 11 to reduce the risk of structural deformation of the blade body 11.

The rectangular auxiliary scraper knife 121 comprises a plurality of rectangular scraper knife portions which are connected in sequence, the rectangular scraper knife portion closest to the scraper knife body 11 is rotatably connected with the scraper knife body 11, and the rectangular scraper knife portion closest to the right-angled triangular auxiliary scraper knife (122) is detachably connected with the right-angled triangular auxiliary scraper knife 122. So set up, can be according to operating condition, the quantity of the rectangle spiller portion of the vice spiller 121 of adjustment rectangle of adaptability to the length of adjustment spiller 1 of adaptability. Thereby further improving the practicability and the universality of the scraper knife device. In the present embodiment, it is exemplarily given that the rectangular sub-blade 121 includes only one rectangular blade portion.

As shown in fig. 1 and fig. 3-5, the blade device further includes a leveling system 4, the leveling system 4 includes a laser transmitter 41, a laser receiver 42 and a controller 43, the laser transmitter 41 is fixedly disposed on the shoveled plane; the laser receiver 42 is fixedly arranged on the blade body 11 and is used for receiving a laser signal emitted by the laser emitter 41; the controller 43 can receive the electric signal sent by the laser receiver 42, and control the driving assembly to drive the connecting assembly 2 to move according to the electric signal, so as to drive the blade 1 to approach or depart from the plane to be shoveled. Specifically, the laser emitter 41 is fixedly arranged on the shoveled plane, when the shoveled plane needs to be leveled, the laser receiver 42 receives an electric signal emitted by the laser emitter 41 and sends the electric signal to the controller 43, and the controller 43 controls the oil cylinder 3 to output power according to the electric signal, so that the oil cylinder 3 can accurately adjust the distance from the shoveling knife body 11 to the shoveled plane, and the shovel knife body is high in precision and good in control performance.

Specifically, the laser emitter 41 is fixedly arranged on the shoveled plane through a first support rod, the laser emitter 41 has a rotatable laser emitting head, the laser emitting head can rotate at a high speed during operation, and the rotation angle is 360 degrees. In this embodiment, the first support rod may also be a straight rod. As an alternative, the first support rod may be a tripod, which has the advantages of stability, simple structure, easy carrying and placing, etc.

Specifically, as shown in fig. 1, the laser receiver 42 is fixedly disposed on the blade body 11 via the second support rod 10. Wherein the second support bar 10 is a lifting bar. So that the height of the laser receiver 42 relative to the blade body 11 can be adjusted by adjusting the support rod.

The invention also provides a bulldozer which comprises the blade device.

Specifically, as shown in fig. 6, the bulldozer further comprises an engine 5, a first gear mechanism 6, two hydraulic transmission systems 7, two second gear mechanisms 8 and two steering wheels 9, wherein an input shaft of the first gear mechanism 6 is in transmission connection with an output shaft of the engine 5, and the first gear mechanism 6 comprises two output shafts; the output shafts of the two first gear mechanisms 6 are in one-to-one correspondence with the two hydraulic transmission systems 7 and are in transmission connection; the two second gear mechanisms 8 and the two hydraulic transmission systems 7 are arranged in a one-to-one correspondence manner, and an input shaft of the second gear mechanism 8 is in transmission connection with the hydraulic transmission systems 7; the two steering wheels 9 and the output shafts of the two second gear mechanisms 8 are arranged in a one-to-one correspondence and are in transmission connection. So set up, engine 5 drives the motion of first gear mechanism 6 to drive two hydraulic transmission system 7 with two output shaft transmission connections of first gear mechanism 6 and work, two hydraulic transmission system 7 drive two second gear mechanism 8 work respectively again, finally drive two directive wheel 9 works, in order to realize turning to.

Specifically, the first gear mechanism 6 includes an input gear fixedly disposed on an input shaft of the first gear mechanism 6, and two output gears fixedly connected to output shafts of the two first gear mechanisms 6, respectively, and transmission ratios of the input gear and the two output gears are equal. The arrangement is such that the turning direction and the turning speed of the two steered wheels 9 are the same when turning.

Specifically, the hydraulic transmission system 7 includes a hydraulic pump and a hydraulic motor, the hydraulic pump is in transmission connection with the output shaft of the first gear mechanism 6, the hydraulic pump and the hydraulic motor are connected through a pipeline, and the output shaft of the hydraulic motor is in transmission connection with the input shaft of the second gear mechanism 8. Wherein, the output shaft of first gear mechanism 6 drives the blade axle rotation of hydraulic pump to drive the blade motion of hydraulic pump, thereby the hydraulic pump passes through the pipeline with fluid and carries to hydraulic motor, thereby hydraulic motor drives the input shaft rotation of second gear mechanism 8, finally drives the steering wheel 9 that the transmission is connected in the output shaft of second gear mechanism 8 and turns to.

The specific structures of the vehicle body 20, the first gear mechanism 6, the second gear mechanism 8 and the hydraulic transmission system 7 all belong to the prior art, and are not described herein again.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (9)

1. A blade assembly, comprising:

the scraper knife (1), the scraper knife (1) comprises a scraper knife body (11) and two auxiliary scraper knives (12), the two auxiliary scraper knives (12) are respectively hinged to two ends of the scraper knife body (11), and the auxiliary scraper knives (12) are provided with first positions located at the end parts of the scraper knife body (11) along the length direction and second positions located at the upper ends of the scraper knife body (11) along the height direction;

a locking assembly capable of locking the secondary blade (12) in the first position or the second position;

a connection assembly (2), the connection assembly (2) being for rotationally connecting the blade (1) to a vehicle body (20);

the driving assembly is used for driving the connecting assembly (2) to move so as to drive the scraper knife (1) to be close to or far away from a shoveled plane;

vice spiller (12) are including the vice spiller of rectangle (121) and the vice spiller of right triangle (122), the vice spiller of rectangle (121) have relative and spaced first end and second end, the vice spiller of rectangle (121) first end can with spiller body (11) rotate to be connected, the vice spiller of rectangle (121) the second end can with the vice spiller of right triangle (122) can dismantle and be connected.

2. The blade device of claim 1, wherein the blade body (11), the rectangular auxiliary blade (121) and the right-angled triangular auxiliary blade (122) are provided with saw-toothed blades (13) at ends close to the shoveled plane.

3. The blade assembly of claim 1, wherein said locking assembly includes a first locking member (31) and a second locking member (32), said first locking member (31) locking said secondary blade (12) to said blade body (11) when said secondary blade (12) is in said first position, said second locking member (32) locking said secondary blade (12) to said blade body (11) when said secondary blade (12) is in said second position.

4. The blade assembly of claim 1, wherein the connecting assembly (2) comprises a connecting rod assembly (21), the connecting rod assembly (21) comprises a first rod (211) and a second rod (212) which are hinged, the first rod (211) is further hinged to the blade body (11), the second rod (212) is further hinged to the vehicle body (20), the driving assembly comprises a cylinder (3), two ends of the cylinder (3) are respectively connected to the second rod (212) and the vehicle body (20), and the cylinder (3) can drive the second rod (212) to move so as to drive the blade (1) to approach or leave the shoveled plane.

5. The blade device of claim 1, wherein the rectangular auxiliary blade (121) comprises a plurality of rectangular blade portions connected in sequence, the rectangular blade portion closest to the blade body (11) is rotatably connected to the blade body (11), and the rectangular blade portion closest to the right-angled triangular auxiliary blade (122) is detachably connected to the right-angled triangular auxiliary blade (122).

6. The blade arrangement of any of claims 1-5, further comprising a leveling system (4), the leveling system (4) comprising:

the laser emitter (41), the said laser emitter (41) is fixed to the said shoveled plane;

the laser receiver (42) is fixedly arranged on the scraper knife body (11) and is used for receiving a laser signal emitted by the laser emitter (41);

the controller (43) can receive the electric signal sent by the laser receiver (42), and controls the driving assembly to drive the connecting assembly (2) to move according to the electric signal so as to drive the scraper knife (1) to be close to or far away from the shoveled plane.

7. A bulldozer, characterized in that it comprises a blade unit as claimed in any one of claims 1 to 6.

8. The bulldozer according to claim 7, further comprising:

an engine (5);

the input shaft of the first gear mechanism (6) is in transmission connection with the output shaft of the engine (5), and the first gear mechanism (6) comprises two output shafts;

the output shafts of the two first gear mechanisms (6) and the two hydraulic transmission systems (7) are arranged in a one-to-one correspondence manner and are in transmission connection;

the two second gear mechanisms (8) and the two hydraulic transmission systems (7) are arranged in a one-to-one correspondence manner, and an input shaft of the second gear mechanism (8) is in transmission connection with the hydraulic transmission systems (7);

the two steering wheels (9) are in one-to-one correspondence arrangement with the output shafts of the two second gear mechanisms (8) and are in transmission connection.

9. The bulldozer according to claim 8, characterised in that said first gear mechanism (6) comprises an input gear fixedly arranged on an input shaft of said first gear mechanism (6) and two output gears fixedly connected to output shafts of two of said first gear mechanisms (6), respectively, the transmission ratios of said input gear and said two output gears being equal.

Images