Hydraulically-controlled crawler transport vehicle

Abstract

The utility model discloses a hydraulically-controlled caterpillar transport vehicle which comprises a chassis provided with left and right symmetrical caterpillar bands, a vehicle head arranged on one side of the front end of the chassis, a front push shovel arranged below the vehicle head, a carriage arranged above the chassis and a rear support arranged at the rear end of the chassis, and the front push shovel is connected with the chassis through a push shovel connecting assembly. The push shovel connecting assembly comprises a push shovel vertical plate fixedly connected with the chassis, a push shovel supporting beam fixedly connected with the front push shovel and rotationally connected with the push shovel vertical plate, and a push shovel hydraulic oil cylinder rotationally connected with the push shovel supporting beam and the push shovel vertical plate, and the push shovel hydraulic oil cylinder is located above the push shovel supporting beam. The push shovel vertical plate, the push shovel supporting beam and the push shovel hydraulic oil cylinder are rotationally connected with one another to form a triangular structure, telescopic movement of the push shovel hydraulic oil cylinder is achieved, the push shovel supporting beam is driven to rotate around the connecting point of the push shovel supporting beam and the push shovel vertical plate, and vertical movement of the front push shovel is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of crawler vehicles, and in particular to a hydraulically controlled crawler transport vehicle. Background Art

[0002] The coal mining environment in the mine is complex, and there will be a lot of debris scattered on the ground, affecting the movement of the vehicle. In addition, there are often a large number of maintenance equipment and tools in the mine that need to be frequently moved, and they are usually heavy. Using manpower to pull and its efficiency is affected, and using a vehicle for loading requires the assistance of a crane. Therefore, the existing mines need a transport vehicle that can adapt to the complex road surface in the mine, eliminate obstacles from ground debris, load equipment and tools, and also have a hoisting function.

[0003] The prior art discloses a multifunctional crawler transport vehicle, with application number 202211621105.X. Specifically disclosed is a front push shovel structure, including a front push shovel fixedly arranged under the front of the vehicle, a shovel blade connected to the front of the front push shovel bracket, and the motor drives the shovel blade to rotate along the surface of the bracket toward the ground to achieve the descent and folding of the shovel blade. However, in this way, after the shovel blade is lowered, the part extending out of the front push shovel bracket lacks support, and the contact part between the lowered shovel blade and the front push shovel bracket forms a fulcrum, which will cause the extended shovel blade to lack support and be squeezed and deformed by the fulcrum when pushing heavy objects. Utility Model Content

[0004] In order to solve the problems raised in the background technology, the purpose of the present application is to provide a hydraulically controlled crawler transporter, whose front dozer structure has better integrity and stronger rigidity.

[0005] The present application adopts the following technical solution: a hydraulically controlled crawler transport vehicle, comprising a chassis provided with left-right symmetrical crawlers, a head disposed on one side of the front end of the chassis, a front dozer disposed below the head, a carriage disposed above the chassis, and a rear support disposed at the rear end of the chassis. The front dozer is connected to the chassis via a dozer connection assembly, and the dozer connection assembly comprises a dozer upright plate fixedly connected to the chassis, a dozer support beam fixedly connected to the front dozer and rotatably connected to the dozer upright plate, and a dozer hydraulic cylinder rotatably connected to both the support beam and the upright plate, wherein the dozer hydraulic cylinder is located above the dozer support beam. The distance between the connection point of the dozer hydraulic cylinder and the dozer upright plate relative to the chassis is greater than the distance between the connection point of the dozer support beam and the dozer upright plate relative to the chassis.

[0006] Preferably, the dozer blade connection assembly also includes a reinforcing plate, which extends along the side of the front dozer blade close to the chassis in the direction of the dozer blade support beam, and the reinforcing plate is fixedly connected to both the front dozer blade and the dozer blade support beam.

[0007] Preferably, there are at least two bulldozer blade connection assemblies, which are symmetrically arranged on both sides of the front end surface of the chassis.

[0008] Preferably, the rear support is connected to the chassis through a support connection assembly, the support connection assembly includes a rear support upright plate fixedly connected to the chassis, a rear support beam rotatably connected to the rear support and the rear support upright plate, and a rear support hydraulic cylinder rotatably connected to the rear support beam and the rear support upright plate, the rear support hydraulic cylinder is located above the rear support beam, and the distance between the connection point of the rear support hydraulic cylinder and the rear support upright plate relative to the chassis is greater than the distance between the connection point of the rear support beam and the rear support upright plate relative to the chassis.

[0009] Preferably, it also includes a middle support assembly arranged between the front of the vehicle and the vehicle body, the middle support assembly includes a support tube arranged between the front of the vehicle and the vehicle body, two telescopic arms are symmetrically arranged in the support tube, one end of the two telescopic arms away from the support tube is rotatably connected to a telescopic cylinder, and one end of the telescopic cylinder away from the telescopic arm is fixedly connected to a support block.

[0010] Preferably, it also includes a truck crane assembly arranged between the front of the vehicle and the carriage, the truck crane assembly includes a rotating base, the upper end surface of the rotating base is fixedly connected to a truck crane support, the end of the truck crane support away from the rotating base is rotatably connected to a first section arm, the first section arm is fixedly connected to a second section arm, and the second section arm is movably connected to a third section arm, the truck crane support is also provided with a truck crane cylinder rotatably connected to the first section arm, and the telescopic movement of the truck crane cylinder causes the first section arm to rotate around the connection point between the first section arm and the truck crane support.

[0011] Preferably, a drum is provided in the vehicle-mounted crane support, a guide wheel is hung at the end of the third arm, the drum is connected to a rope, the end of the rope is connected to a hook, the hook passes through the area between the third arm and the guide wheel and is suspended under the guide wheel, and the drum is driven to rotate by a hydraulic slewing mechanism.

[0012] In summary, the present application includes at least one of the following beneficial technical effects:

[0013] The front dozer blade is connected to the chassis through the dozer blade connection assembly, which not only realizes the rising and lowering functions of the front dozer blade, but also makes the front dozer blade more integrated, stronger and more balanced in force;

[0014] The rear support is connected to the chassis using a support connection assembly similar to the bulldozer connection assembly, which also has better integrity, higher strength and more balanced force.

[0015] The two telescopic cylinders in the middle support assembly are rotatably connected to the two telescopic arms, so that the support block can be extended longer to adapt to more complex working environments;

[0016] The truck crane assembly includes a truck crane cylinder, which enables the third boom to adjust its position up and down to adapt to more hoisting operation environments at different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is an enlarged schematic diagram of the structure of the front push shovel of the utility model;

[0019] Figure 3 It is an enlarged schematic diagram of the structure of the rear support of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the middle support assembly of the utility model;

[0021] Figure 5 The utility model is a structural schematic diagram of a vehicle-mounted crane assembly.

[0022] Description of reference numerals:

[0023] 1. Chassis; 2. Front bulldozer; 3. Bulldozer connection assembly; 301. Bulldozer upright plate; 302. Bulldozer support beam; 303. Bulldozer hydraulic cylinder; 304. Reinforcement plate; 4. Rear support; 5. Support connection assembly; 501. Rear support upright plate; 502. Rear support beam; 503. Rear support hydraulic cylinder; 6. Middle support assembly; 601. Support pipe; 602. Telescopic arm; 603. Telescopic cylinder; 604. Support block; 7. Truck crane assembly; 701. Rotating base; 702. Truck crane support; 703. First boom section; 704. Second boom section; 705. Third boom section; 706. Truck crane cylinder; 707. Drum; 708. Guide wheel. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present utility model.

[0025] The following is combined with Figure 1-Figure 5The present application is further described in detail. The embodiment of the present application discloses a hydraulically controlled crawler transport vehicle. It includes a chassis 1 provided with left-right symmetrical crawlers, a front vehicle head provided at one side of the front end of the chassis 1, a front dozer 2 provided below the front vehicle head, a carriage provided above the chassis 1, and a rear support 4 provided at the rear end of the chassis 1. The front dozer 2 is connected to the chassis 1 through a dozer connection assembly 3, and the dozer connection assembly 3 includes a dozer upright plate 301 fixedly connected to the chassis 1, a dozer support beam 302 fixedly connected to the front dozer 2 and rotatably connected to the dozer upright plate 301, and a dozer hydraulic cylinder 303 rotatably connected to both the dozer support beam 302 and the dozer upright plate 301, the dozer hydraulic cylinder 303 is located above the dozer support beam 302, and the front dozer 2 is pushed toward the ground by the thrust extended by the dozer hydraulic cylinder 303. The bulldozer upright plate 301, bulldozer support beam 302 and bulldozer hydraulic cylinder 303 are connected and rotated to form a triangular structure. When the bulldozer hydraulic cylinder 303 performs telescopic movement, the bulldozer support beam 302 rotates around the connection point between the bulldozer support beam 302 and the bulldozer upright plate 301 driven by the bulldozer hydraulic cylinder 303, so as to realize the up and down movement of the front bulldozer 2. The distance between the connection point between the bulldozer hydraulic cylinder 303 and the bulldozer upright plate 301 and the chassis 1 is greater than the distance between the connection point between the bulldozer support beam 302 and the bulldozer upright plate 301 and the chassis 1, so that the extension direction of the bulldozer hydraulic cylinder 303 has a larger angle relative to the ground, which can greatly increase the degree and strength of the front bulldozer 2 descending toward the ground, and reduce the height of the front bulldozer 2 being lifted, so as to prevent obstruction or damage to the front of the vehicle.

[0026] Furthermore, the dozer blade connection assembly 3 also includes a reinforcing plate 304, which extends along the side of the front dozer blade 2 close to the chassis 1 in the direction of the dozer blade support beam 302, and is fixedly connected to the front dozer blade 2 and the dozer blade support beam 302, so that the front dozer blade 2 and the dozer blade support beam 302 have better integrity and stronger rigidity, thereby improving the hardness and thrust strength of the front dozer blade 2. The number of reinforcing plates 304 can be increased as needed.

[0027] Furthermore, there are at least two dozer blade connection assemblies 3, which are symmetrically arranged on both sides of the front end surface of the chassis 1, so that the forces on both sides of the front dozer blade 2 are more evenly applied, thereby improving the overall hardness of the front dozer blade 2.

[0028] The rear support 4 is connected to the chassis 1 through a support connection assembly 5, which includes a rear support upright plate 501 fixedly connected to the chassis 1, a rear support beam 502 rotatably connected to both the rear support 4 and the rear support upright plate 501, and a rear support hydraulic cylinder 503 rotatably connected to both the rear support beam 502 and the rear support upright plate 501. The rear support hydraulic cylinder 503 is located above the rear support beam 502. The rear support upright plate 501, the rear support beam 502 and the rear support hydraulic cylinder 503 are also rotatably connected to each other to form a triangular structure. Through the telescopic movement of the rear support hydraulic cylinder 503, the rear support beam 502 rotates around the connection point between the rear support beam 502 and the rear support upright plate 501, so that the rear support 4 moves up and down relative to the ground, thereby realizing the function of lowering and retracting the rear support 4. The distance between the connection point of the rear support hydraulic cylinder 503 and the rear support vertical plate 501 relative to the chassis 1 is greater than the distance between the connection point of the rear support beam 502 and the rear support vertical plate 501 relative to the chassis 1, so that the extension direction of the rear support hydraulic cylinder 503 is at a greater angle relative to the ground, which can greatly increase the degree and strength of the rear support 4 descending toward the ground, and reduce the height of the rear support 4 being lifted, thereby preventing obstruction or damage to the vehicle compartment.

[0029] The present application also includes a middle support assembly 6 disposed between the front of the vehicle and the vehicle body. The middle support assembly 6 includes a support tube 601 disposed between the front of the vehicle and the vehicle body. Two telescopic arms 602 are symmetrically disposed in the support tube 601. The telescopic arms 602 are moved along the extension direction of the support tube 601 by conventional existing technologies such as electric drive or hydraulic drive. The end of the telescopic arm 602 away from the support tube 601 is rotatably connected to a telescopic oil cylinder 603. The rotatably connected telescopic oil cylinder 603 can make the extension length of the telescopic oil cylinder 603 longer, thereby supporting a higher height of the crawler vehicle. Compared with the telescopic method without a rotatable connection, the longer extension length of the rotatably connected telescopic oil cylinder 603 in this embodiment can cope with more complex ground environments. The end of the telescopic oil cylinder 603 away from the telescopic arm 602 is fixedly connected to a support block 604 for increasing the support area.

[0030] The present application also includes a vehicle-mounted crane assembly 7 disposed between the front of the vehicle and the vehicle compartment. The vehicle-mounted crane assembly 7 includes a rotating base 701. The rotating base 701 can be driven to rotate by a motor. In this embodiment, a hydraulic slewing mechanism is provided in the rotating base 701, and the rotation of the rotating base 701 is driven by the hydraulic slewing mechanism. A vehicle-mounted crane support 702 is fixedly connected to the upper end surface of the rotating base 701. The end of the vehicle-mounted crane support 702 away from the rotating base 701 is rotatably connected to a first section arm 703. The first section arm 703 is fixedly connected to a second section arm 704. A third section arm 705 is movably connected in the second section arm 704. A driving oil cylinder connected to the third section arm 705 is also provided in the second section arm 704. The reciprocating motion of the third section arm 705 in the second section arm 704 is driven by the telescopic motion of the driving oil cylinder. The truck crane support 702 is also provided with a truck crane cylinder 706 rotatably connected to the first boom 703. The telescopic movement of the truck crane cylinder 706 causes the first boom 703 to rotate around the connection point between the first boom 703 and the truck crane support 702, thereby controlling the lifting and lowering of the third boom 705.

[0031] A drum 707 is provided in the vehicle-mounted crane support 702, a guide wheel 708 is hung at the end of the third arm 705, a rope is connected to the drum 707, the end of the rope is connected to a hook, the hook passes through the area between the third arm 705 and the guide wheel 708 and is suspended under the guide wheel 708, and the drum 707 is coaxially fixedly connected with a hydraulic rotating mechanism, which drives the drum 707 to rotate and pull the rope through the hydraulic rotating mechanism to change the position of the hook.

[0032] The carriage in this embodiment is also driven to lift and lower the carriage by the carriage hydraulic cylinder, thereby realizing the automatic unloading function of the carriage.

[0033] Working principle: When the front dozer 2 needs to work, the dozer hydraulic cylinder 303 is driven to extend, so that the dozer support beam 302 rotates downward around the connection point between the dozer support beam 302 and the dozer upright plate 301, thereby moving the front dozer 2 toward the ground to lower the front dozer 2. When the front dozer 2 does not need to work, the dozer hydraulic cylinder 303 is controlled to retract, so that the dozer support beam 302 is pulled up by the dozer hydraulic cylinder 303, and then the front dozer 2 is retracted away from the ground.

[0034] When the rear support 4 needs to work, the rear support hydraulic cylinder 503 is driven to extend, so that the rear support beam 502 rotates toward the ground around the connection point between the rear support beam 502 and the rear support vertical plate 501, thereby driving the rear support 4 to move toward the ground. When the rear support 4 needs to be retracted, the rear support hydraulic cylinder 503 is driven to retract, so that the rear support beam 502 is pulled up by the rear support hydraulic cylinder 503, thereby driving the rear support 4 away from the ground.

[0035] When the middle support block 604 is needed for support, the two telescopic arms 602 are first driven to extend to both sides. After extending to a predetermined length, the telescopic cylinder 603 is rotated so that the extension direction of the telescopic cylinder 603 is perpendicular to the ground, and then the telescopic cylinder 603 is driven to extend to move the support block 604 toward the ground. When the support block 604 needs to be retracted, the telescopic cylinder 603 is driven to retract to move the support block 604 away from the ground, and then the telescopic cylinder 603 is rotated 180 degrees to drive the telescopic arms 602 to retract. At this time, even if the telescopic cylinder 603 is extended, it will only move the support block 604 away from the ground, effectively preventing errors caused by misoperation.

[0036] When hook lifting operation is required, the direction of the third boom is controlled by rotating the chassis 1, the height of the third boom 705 is controlled by the hydraulic cylinder of the truck crane, the drum 707 is driven to rotate by the hydraulic slewing mechanism, and the lifting and lowering of the hook is achieved by the rotation of the drum 707.

[0037] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, and may be located in one place or distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0038] In the present application, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation", "screw-on" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in this application according to the specific circumstances.

[0039] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of the present application, and all these changes or substitutions should fall within the protection scope of the claims attached to the present application.

Claims

1. A hydraulically controlled crawler transport vehicle, comprising a chassis (1) provided with left-right symmetrical crawlers, a head disposed on one side of the front end of the chassis (1), a front push shovel (2) disposed below the head, a carriage disposed above the chassis (1), and a rear support (4) disposed at the rear end of the chassis (1), characterized in that: The front dozer (2) is connected to the chassis (1) via a dozer connection assembly (3), wherein the dozer connection assembly (3) comprises a dozer upright plate (301) fixedly connected to the chassis (1), a dozer support beam (302) fixedly connected to the front dozer (2) and rotatably connected to the dozer upright plate (301), and a dozer hydraulic cylinder (303) rotatably connected to both the dozer support beam (302) and the dozer upright plate (301), wherein the dozer hydraulic cylinder (303) is located above the dozer support beam (302), and the distance between the connection point of the dozer hydraulic cylinder (303) and the dozer upright plate (301) relative to the chassis (1) is greater than the distance between the connection point of the dozer support beam (302) and the dozer upright plate (301) relative to the chassis (1).

2. The hydraulically controlled crawler transporter according to claim 1, characterized in that: The dozer blade connection assembly (3) further comprises a reinforcing plate (304), wherein the reinforcing plate (304) extends along the side surface of the front dozer blade (2) close to the chassis (1) in the direction of the dozer blade support beam (302), and the reinforcing plate (304) is fixedly connected to both the front dozer blade (2) and the dozer blade support beam (302).

3. The hydraulically controlled crawler transporter according to claim 1, characterized in that: There are at least two push blade connection assemblies (3), and the push blade connection assemblies (3) are symmetrically arranged on both sides of the front end surface of the chassis (1).

4. The hydraulically controlled crawler transporter according to claim 1, characterized in that: The rear support (4) is connected to the chassis (1) via a support connection assembly (5), the support connection assembly (5) comprising a rear support upright plate (501) fixedly connected to the chassis (1), a rear support beam (502) rotatably connected to both the rear support (4) and the rear support upright plate (501), and a rear support hydraulic cylinder (503) rotatably connected to both the rear support beam (502) and the rear support upright plate (501), the rear support hydraulic cylinder (503) being located above the support beam (502), and the distance between the connection point of the rear support hydraulic cylinder (503) and the rear support upright plate (501) relative to the chassis (1) is greater than the distance between the connection point of the rear support beam (502) and the rear support upright plate (501) relative to the chassis (1).

5. The hydraulically controlled crawler transporter according to claim 1, characterized in that: The vehicle also comprises a middle support assembly (6) arranged between the vehicle head and the vehicle body, the middle support assembly (6) comprising a support tube (601) arranged between the vehicle head and the vehicle body, two telescopic arms (602) being symmetrically arranged in the support tube (601), one end of the two telescopic arms (602) away from the support tube (601) being rotatably connected to a telescopic oil cylinder (603), and one end of the telescopic oil cylinder (603) away from the telescopic arm (602) being fixedly connected to a support block (604).

6. The hydraulically controlled crawler transporter according to claim 1, characterized in that: The vehicle also comprises a vehicle-mounted crane assembly (7) arranged between the vehicle head and the vehicle body, wherein the vehicle-mounted crane assembly (7) comprises a rotating base (701), the upper end surface of the rotating base (701) is fixedly connected to a vehicle-mounted crane support (702), one end of the vehicle-mounted crane support (702) away from the rotating base (701) is rotatably connected to a first arm (703), the first arm (703) is fixedly connected to a second arm (704), and a third arm (705) is movably connected inside the second arm (704), and the vehicle-mounted crane support (702) is further provided with a vehicle-mounted crane oil cylinder (706) rotatably connected to the first arm (703), and the vehicle-mounted crane oil cylinder (706) telescopically moves to rotate the first arm (703) around the connection point between the first arm (703) and the vehicle-mounted crane support (702).

7. The hydraulically controlled crawler transporter according to claim 6, characterized in that: A drum (707) is provided in the vehicle-mounted crane support (702), a guide wheel (708) is hung at the end of the third arm (705), the drum is connected to a rope, the end of the rope is connected to a hook, the hook passes through the area between the third arm (705) and the guide wheel (708) and is hung under the guide wheel (708), and the drum (707) is coaxially fixedly connected to a hydraulic slewing mechanism.

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