Hydraulic supporting leg device for crawler loader

Abstract

The hydraulic supporting leg device comprises a chassis body, a supporting frame is rotationally connected to the side face of the chassis body, a supporting hydraulic cylinder is arranged on the supporting frame, a base column is arranged at the bottom end of the supporting hydraulic cylinder, and a supporting foot plate is arranged at the bottom end of the base column; a supporting sleeve is arranged on the supporting foot plate and the base column, the supporting sleeve comprises a stretching assembly and a driving assembly, the stretching assembly is rotationally connected to the side face of the supporting foot plate, and the driving assembly is arranged in the base column and arranged on the stretching assembly. According to the utility model, through the arrangement of the supporting sleeve piece, the supporting hydraulic cylinder extends to push the supporting foot plate to the ground and contact with the ground during supporting, and then the supporting sleeve piece is unfolded to contact with the ground, so that the supporting area of the supporting foot plate is greatly increased, and the supporting range and the supporting stability are improved; and through the design of the ground nails, the supporting external member is prevented from slipping during supporting.

Description

Technical Field

[0001] This utility model relates to the field of muck loader technology, and in particular to a hydraulic support foot device for a muck loader. Background Technology

[0002] A muck loader is a type of mechanical equipment mainly used for operations in narrow spaces such as mines and tunnels. It is mainly used to quickly clear muck and other materials in mines or tunnels and transfer them to transport vehicles. It consists of a horizontal swing seat, boom, stick, four-bar linkage, and bucket, which are the core components for completing the muck loading operation.

[0003] During muck loading operations, muck loaders are generally moved by rollers or tracks. In order to prevent the muck loader from shaking or tipping over during operation, hydraulic support feet are installed on the side of the muck loader chassis to stabilize the entire chassis. However, due to the relatively humid environment in mines or tunnels, the support range of the hydraulic support feet is relatively narrow, and they are prone to sinking into the ground during the support process, which affects the stability effect.

[0004] Therefore, how to provide a hydraulic support foot device for a muck loader is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] One objective of this invention is to provide a hydraulic support foot device for a muck loader. This invention solves the problem that the hydraulic support foot device in the existing muck loader has a narrow support range and is prone to sinking into the ground during the support process, thus affecting stability.

[0006] A hydraulic support foot device for a muck loader according to an embodiment of the present invention includes a chassis body, a support frame rotatably connected to the side of the chassis body, a support hydraulic cylinder provided on the support frame, a base column provided at the bottom end of the support hydraulic cylinder, and a support foot plate provided at the bottom end of the base column; a support kit is provided on the support foot plate and the base column, the support kit including an extension component and a drive component, the extension component being rotatably connected to the side of the support foot plate, and the drive component being disposed inside the base column and disposed on the extension component.

[0007] The extension assembly includes a support foot rod, a push rod, and a drive ring. The support foot rod is rotatably connected to the side of the support foot plate, the push rod is rotatably connected to the top of the support foot rod, the drive ring is movably sleeved on the side of the base column, and the end of the push rod away from the support foot rod is rotatably connected to the side of the drive ring.

[0008] The drive assembly includes a movable slot, a drive motor, a drive screw, and a drive push plate. The movable slot is located inside the base column and communicates with the side of the base column. The drive motor is embedded in the bottom of the inner wall of the movable slot. The drive screw is located at the output shaft end of the drive motor and is rotatably connected to the movable slot. The drive push plate is movably connected to the inside of the movable slot and is threaded onto the surface of the drive screw. The side of the drive push plate is fixedly connected to the inner wall of the drive ring.

[0009] The number of support legs and push rods is greater than two sets, and the support legs and push rods are arranged in a ring array with the center of the support foot plate as the array center.

[0010] Ground nails are installed on the lower surface of the support leg where it contacts the ground.

[0011] A side-expansion hydraulic cylinder is rotatably connected to the side of the chassis, and the output shaft of the side-expansion hydraulic cylinder is rotatably connected to the side of the support frame.

[0012] The support frame is equipped with a displacement assembly, which includes a guide rod, a displacement screw, a displacement block, a displacement motor, a drive gear, and a transmission gear. The displacement motor is located on the side of the support frame, the drive gear is fixedly connected to the output shaft end of the displacement motor, the displacement screw is rotatably connected to the support frame, the guide rod is fixedly connected to the support frame and is parallel to the displacement screw, the displacement block is movably sleeved on the surface of the displacement screw and the guide rod, the transmission gear is fixedly connected to the end face of the displacement screw, the drive gear and the transmission gear mesh with each other, and the support hydraulic cylinder is located on the lower surface of the displacement block.

[0013] The beneficial effects of this utility model are:

[0014] By setting up a support kit, the hydraulic cylinder extends during support to push the support foot plate to the ground and make contact with it. Then the support kit unfolds and contacts the ground, which greatly increases the support area of ​​the support foot plate, improves the support range and support stability. The design of the ground nail further prevents the support kit from slipping during support, solving the problem that the hydraulic support foot device in the existing muck loader has a narrow support range and is prone to sinking into the ground during support, thus affecting stability.

[0015] By setting up a side-expansion hydraulic cylinder, the side-expansion hydraulic cylinder extends to expand the support frame to achieve the support effect, and the side-expansion hydraulic cylinder retracts to drive the support frame to retract, thereby realizing the storage of the support frame.

[0016] By setting up a displacement component, which is used to change the position of the support hydraulic cylinder, it is convenient to adjust the distance between the support foot plate and the support kit and the chassis body, thereby achieving the purpose of adjusting the support position of the support foot plate and the support kit. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a hydraulic support foot device for a muck loader proposed in this utility model.

[0019] Figure 2 This is a partial three-dimensional structural diagram of the support kit position in the hydraulic support foot device for a muck loader proposed in this utility model.

[0020] Figure 3 This is a three-dimensional cross-sectional view of the displacement component and support kit in the hydraulic support foot device for a muck loader proposed in this utility model.

[0021] Figure 4 This is a three-dimensional cross-sectional view of another position of the displacement component in the hydraulic support foot device for a muck loader proposed in this utility model.

[0022] Figure 5 This is a three-dimensional structural diagram of a portion of the support kit in a hydraulic support foot device for a muck loader proposed in this utility model.

[0023] The attached diagram shows: 1. Chassis body; 2. Support frame; 3. Support hydraulic cylinder; 4. Base column; 5. Support foot plate; 6. Support kit; 7. Extension assembly; 8. Drive assembly; 9. Support leg; 10. Push rod; 11. Drive ring; 12. Movable groove; 13. Drive motor; 14. Drive screw; 15. Drive push plate; 16. Ground stake; 17. Side unfolding hydraulic cylinder; 18. Displacement assembly; 19. Guide rod; 20. Displacement screw; 21. Displacement block; 22. Displacement motor; 23. Drive gear; 24. Transmission gear. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0025] refer to Figure 1-5In this embodiment, a chassis body 1 is included. A support frame 2 is rotatably connected to the side of the chassis body 1. A side-expansion hydraulic cylinder 17 is rotatably connected to the side of the chassis. The side-expansion hydraulic cylinder 17 controls the support frame 2, allowing the support frame 2 to rotate freely. The support frame 2 rotates on a horizontal plane. The output shaft of the side-expansion hydraulic cylinder is rotatably connected to the side of the support frame 2. A support hydraulic cylinder 3 is provided on the support frame 2. A base column 4 is provided at the bottom end of the support hydraulic cylinder 3. A support foot plate 5 is provided at the bottom end of the base column 4. A support kit 6 is provided on the support foot plate 5 and the base column 4. The support kit 6 is used to increase the support range of the support foot plate 5 and enhance the support effect. When support is needed, the side-expansion hydraulic cylinder 17 is first activated to extend its output shaft and push the support frame 2 to rotate. The rotation of the support frame 2 will drive the support hydraulic cylinder 3, the base column 4, the support foot plate 5, and the support kit 6 to rotate to the support position.

[0026] refer to Figure 1-5 In this embodiment, the support kit 6 includes an extension assembly 7 and a drive assembly 8. The extension assembly 7 is rotatably connected to the side of the support foot plate 5. The drive assembly 8 is disposed inside the base column 4 and is mounted on the extension assembly 7. The extension assembly 7 includes a support foot rod 9, a push rod 10, and a drive ring 11. The support foot rod 9 is rotatably connected to the side of the support foot plate 5. The push rod 10 is rotatably connected to the top end of the support foot rod 9. The drive ring 11 is movably sleeved on the side of the base column 4. The end of the push rod 10 away from the support foot rod 9 rotates... The dynamic connection is on the side of the drive ring 11. The number of support legs 9 and push rods 10 is greater than two sets. The support legs 9 and push rods 10 are arranged in a ring array with the center of the support foot plate 5 as the array center. This arrangement makes the entire support foot plate 5 bear force evenly when supporting. A total of eight sets of support legs 9 and push rods 10 are set here, which increases the support range and the support area while avoiding the problem of sinking into the ground. Ground nails 16 are set at the position where the lower surface of the support leg 9 is in contact with the ground to enhance the anti-slip performance of the entire support leg 9.

[0027] The drive assembly 8 includes a movable slot 12, a drive motor 13, a drive screw 14, and a drive push plate 15. The movable slot 12 is located inside the base column 4 and communicates with the side of the base column 4. The drive motor 13 is embedded in the bottom of the inner wall of the movable slot 12. The drive screw 14 is located at the output shaft end of the drive motor 13 and is rotatably connected to the movable slot 12. The drive push plate 15 is movably connected to the inside of the movable slot 12 and is threaded onto the surface of the drive screw 14. The side of the drive push plate 15 is fixedly connected to the inner wall of the drive ring 11. During operation, after the support frame 2 is unfolded, the support hydraulic cylinder 3 is activated. It pushes the base column 4 and support foot 5 to move and bring the support foot 5 into contact with the ground. Then, it starts the drive assembly 8, which starts the drive motor 13 to rotate. The rotation of the drive motor 13 will drive the drive screw 14 to rotate. The rotation of the drive screw 14 will drive the drive push plate 15 to move downward. The downward movement of the drive push plate 15 will drive the drive ring 11 to move downward. The downward movement of the drive ring 11 will push the push rod 10. The push rod 10 will push the support foot 9 to unfold and make contact with the ground. The above operation can complete the entire support operation of the support kit 6, which is used to increase the support range and support area of ​​the support foot 5 and greatly improve the support stability.

[0028] refer to Figure 1-5 In this embodiment, the support frame 2 is provided with a displacement assembly 18, which includes a guide rod 19, a displacement lead screw 20, a displacement block 21, a displacement motor 22, a drive gear 23, and a transmission gear 24. The displacement motor 22 is located on the side of the support frame 2, the drive gear 23 is fixedly connected to the output shaft end of the displacement motor 22, the displacement lead screw 20 is rotatably connected to the support frame 2, the guide rod 19 is fixedly connected to the support frame 2 and is parallel to the displacement lead screw 20, the displacement block 21 is movably sleeved on the surfaces of the displacement lead screw 20 and the guide rod 19, and the transmission gear 24 is fixedly connected to the end face of the displacement lead screw 20. The drive gear 23 and the transmission gear 24 are connected to each other. 4. The hydraulic cylinder 3 is set on the lower surface of the displacement block 21. In order to change the position of the support, a displacement component 18 is set here. When the support frame 2 is unfolded, the displacement motor 22 is started. The displacement motor 22 drives the drive gear 23 to rotate. The rotation of the drive gear 23 drives the transmission gear 24 to rotate. The rotation of the transmission gear 24 drives the displacement screw 20 to rotate. Under the drive of the displacement screw 20, the displacement block 21 moves along the guide rod 19 and the displacement screw 20. The movement of the displacement block 21 will drive the support hydraulic cylinder 3, the base column 4, the support foot plate 5 and the support kit 6 to move as a whole to change the support position, thereby achieving the effect of adjusting the support position.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hydraulic support foot device for a muck loader, characterized in that, Includes a chassis body (1), a support frame (2) is rotatably connected to the side of the chassis body (1), a support hydraulic cylinder (3) is provided on the support frame (2), a base column (4) is provided at the bottom end of the support hydraulic cylinder (3), and a support foot plate (5) is provided at the bottom end of the base column (4). The support foot plate (5) and the base column (4) are provided with a support kit (6), which includes an extension component (7) and a drive component (8). The extension component (7) is rotatably connected to the side of the support foot plate (5), and the drive component (8) is located inside the base column (4) and is located on the extension component (7).

2. The hydraulic support foot device for a muck loader according to claim 1, characterized in that, The extension assembly (7) includes a support foot rod (9), a push rod (10) and a drive ring (11). The support foot rod (9) is rotatably connected to the side of the support foot plate (5). The push rod (10) is rotatably connected to the top of the support foot rod (9). The drive ring (11) is movably sleeved on the side of the base column (4). The end of the push rod (10) away from the support foot rod (9) is rotatably connected to the side of the drive ring (11).

3. A hydraulic support foot device for a muck loader according to claim 2, characterized in that, The drive assembly (8) includes a movable groove (12), a drive motor (13), a drive screw (14), and a drive push plate (15). The movable groove (12) is opened inside the base column (4) and communicates with the side of the base column (4). The drive motor (13) is embedded in the bottom of the inner wall of the movable groove (12). The drive screw (14) is set at the output shaft end of the drive motor (13) and is rotatably connected in the movable groove (12). The drive push plate (15) is movably connected in the movable groove (12). The drive push plate (15) is threaded onto the surface of the drive screw (14). The side of the drive push plate (15) is fixedly connected to the inner wall of the drive ring (11).

4. A hydraulic support foot device for a muck loader according to claim 3, characterized in that, The number of the support legs (9) and push rods (10) is greater than two sets. The support legs (9) and push rods (10) are arranged in a ring array with the center of the support foot plate (5) as the array center.

5. A hydraulic support foot device for a muck loader according to claim 4, characterized in that, Ground nails (16) are provided at the position where the lower surface of the support leg (9) is in contact with the ground.

6. A hydraulic support foot device for a muck loader according to claim 5, characterized in that, The side of the chassis is rotatably connected to a side-expansion hydraulic cylinder (17), and the output shaft of the side-expansion hydraulic cylinder is rotatably connected to the side of the support frame (2).

7. A hydraulic support foot device for a muck loader according to claim 6, characterized in that, The support frame (2) is provided with a displacement assembly (18), which includes a guide rod (19), a displacement screw (20), a displacement block (21), a displacement motor (22), a drive gear (23), and a transmission gear (24). The displacement motor (22) is located on the side of the support frame (2), the drive gear (23) is fixedly connected to the output shaft end of the displacement motor (22), the displacement screw (20) is rotatably connected to the support frame (2), the guide rod (19) is fixedly connected to the support frame (2) and the guide rod (19) is parallel to the displacement screw (20), the displacement block (21) is movably sleeved on the surface of the displacement screw (20) and the guide rod (19), the transmission gear (24) is fixedly connected to the end face of the displacement screw (20), the drive gear (23) and the transmission gear (24) mesh with each other, and the support hydraulic cylinder (3) is located on the lower surface of the displacement block (21).

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