Hydraulic dismounting device for track shoe of excavator

Abstract

The utility model relates to caterpillar band cover dismounting technical field especially relates to a caterpillar band cover hydraulic dismounting device for excavator, including connecting plate, the symmetry installation hole is opened to connecting plate, two installation holes all are fixedly installed with the supporting rod, the moving hole is opened to supporting rod, the moving hole is slidably installed with the moving rod, the one end of moving rod rotatably installs the locating plate, the back of locating plate is fixedly installed with the triangular guide plate, the through -hole is opened to moving rod, the horizontal slide of through -hole is installed with the push rod, the one end of push rod is fixedly installed with the L type's jacking rod, be equipped with transmission assembly on connecting plate, the utility model discloses through the mutual cooperation of transmission assembly, push rod, moving rod, jacking rod and triangular guide plate, caterpillar band clamping between locating plate and connecting plate, greatly reduce the dependence on operating space, let construction personnel also can efficient operation in the narrow gap, effectively improve the dismounting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of track cover disassembly technology, and in particular to a hydraulic disassembly device for track covers used in excavators. Background Technology

[0002] In the existing track structure, the connection between the two track plates is achieved by connecting pins at their respective ends. The protruding end of the pin is connected to the track connecting sleeve and locked by upper and lower locking screws. However, since track structures are mostly used in harsh environments, they are prone to rust after long-term use. When disassembling the track structure, even if the locking screws are removed, the pin may still get stuck in the track connecting sleeve.

[0003] Chinese patent CN221313196U discloses a pin removal device for hydraulic excavator tracks. It has a simple structure and is easy to assemble and disassemble. The locking method of the nut assembly effectively prevents loosening during use, increasing the overall stability of the device. It can also use a variable diameter sleeve of appropriate size to adapt to different models of excavator tracks, making it adaptable and practical.

[0004] The existing track structure is compact with narrow gaps. In the aforementioned patent literature, when installing the first connecting plate and the second connecting plate, the operating space for construction personnel is extremely limited, making it difficult to use tools and perform fine operations. Operations such as aligning bolt holes and tightening nuts become difficult, thus affecting disassembly efficiency. Utility Model Content

[0005] The purpose of this utility model is to solve the following shortcomings in the existing technology: when installing the first connecting plate and the second connecting plate, the operating space of the construction personnel is extremely limited, making it difficult to use tools and perform fine operations, such as aligning bolt holes and tightening nuts, which makes disassembly efficiency difficult. Therefore, a hydraulic disassembly device for track covers of excavators is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A hydraulic removal device for track covers of an excavator includes a connecting plate, on which a hydraulic push rod mechanism is mounted. A circular hole is provided in the middle of the connecting plate, and a variable diameter sleeve is provided at the front end of the circular hole.

[0008] The connecting plate has symmetrical mounting holes, and a support rod is fixedly installed in each of the two mounting holes. Each of the two support rods has a through-hole at both ends, and a moving rod is horizontally slidably installed in each of the two moving holes via a sliding assembly. One end of each moving rod has a rectangular hole, and a positioning plate is rotatably installed in the rectangular hole via a rotating assembly. A triangular guide plate is fixedly installed on the back of the positioning plate. Both ends of the moving rod have through holes, and a push rod is horizontally slidably installed in each through hole. An L-shaped top rod is fixedly installed at one end of each push rod, and one end of the top rod contacts the inclined surface of the triangular guide plate. The connecting plate is provided with a transmission assembly for simultaneously moving both push rods.

[0009] Preferably, the support rod has sliding holes on both its left and right sides that communicate with the moving hole, and the sliding assembly includes two sliding blocks that are horizontally slidably installed in the two sliding holes, and both sliding blocks are fixedly connected to the moving rod.

[0010] Preferably, the rotating assembly includes a fixed shaft fixedly installed in a rectangular hole and a rotating sleeve rotatably sleeved on the fixed shaft, and the positioning plate is fixedly installed on the rotating sleeve.

[0011] Preferably, the transmission assembly includes a threaded rod horizontally rotatably mounted on a connecting plate, an adjusting block fixedly mounted on one end of the threaded rod, a movable block threaded onto the threaded rod, and two support rods symmetrically fixedly mounted on the movable block, with one end of each of the two support rods fixedly connected to two push rods respectively.

[0012] Preferably, a bracket is fixedly installed on the connecting plate, the threaded rod is rotatably installed on the bracket, and the moving block is horizontally slidably sleeved on the bracket.

[0013] Preferably, an anti-slip pad is fixedly installed on the front of the positioning plate, and the anti-slip pad is made of rubber.

[0014] The beneficial effects of this utility model are as follows:

[0015] When in use, the device inserts two support rods into the narrow gaps in the tracks. Then, through the cooperation of the transmission components, push rods, moving rods, top rods, and triangular guide plates, the positioning plate is rotated and moved towards the track plate, clamping the track plate between the positioning plate and the connecting plate. This greatly reduces the dependence on the operating space, allowing construction workers to operate efficiently even in narrow gaps, effectively improving disassembly efficiency. Attached Figure Description

[0016] Figure 1 This is a frontal perspective three-dimensional structural diagram of a hydraulic disassembly device for track sleeves of an excavator proposed in this utility model;

[0017] Figure 2This is a bottom-view three-dimensional structural diagram of a hydraulic disassembly device for track sleeves of an excavator proposed in this utility model;

[0018] Figure 3 A schematic diagram of a three-dimensional partial cross-sectional structure of the support rod, the moving rod, the positioning plate, and the push rod;

[0019] Figure 4 A partial three-dimensional cross-sectional schematic diagram of the moving rod, rotating assembly, positioning plate, top rod, and push rod;

[0020] Figure 5 for Figure 2 Enlarged view of the structure at point A in the middle.

[0021] In the diagram: 1 connecting plate, 2 hydraulic push rod mechanism, 3 changing diameter sleeve, 4 support rod, 5 moving rod, 6 positioning plate, 7 triangular guide plate, 8 push rod, 9 top rod, 10 sliding block, 11 fixed shaft, 12 rotating sleeve, 13 threaded rod, 14 adjusting block, 15 moving block, 16 support rod, 17 bracket. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-2 A hydraulic disassembly device for track covers of an excavator includes a connecting plate 1, a hydraulic push rod mechanism 2 mounted on the connecting plate 1, a circular hole in the middle of the connecting plate 1, and a variable diameter sleeve 3 at the front end of the circular hole. The connecting plate 1, the hydraulic push rod mechanism 2, and the variable diameter sleeve 3 are all disclosed in Chinese Patent No. CN221313196U, entitled "A Pin Shaft Disassembly Device for Track Covers of a Hydraulic Excavator". Their working principles will not be described in detail here.

[0024] Reference Figure 3The connecting plate 1 has symmetrical mounting holes, and a support rod 4 is fixedly installed in each of the two mounting holes. Each end of the support rod 4 has a through-hole, and a moving rod 5 is horizontally slidably installed in each of the two moving holes via a sliding assembly. One end of the moving rod 5 has a rectangular hole, and a positioning plate 6 is rotatably installed in the rectangular hole via a rotating assembly. A triangular guide plate 7 is fixedly installed on the back of the positioning plate 6. Both ends of the moving rod 5 have through holes, and a push rod 8 is horizontally slidably installed in each through hole. An L-shaped top rod 9 is fixedly installed at one end of the push rod 8, and one end of the top rod 9 contacts the inclined surface of the triangular guide plate 7. The connecting plate 1 has... A transmission assembly for simultaneously moving two push rods 8. The moving rod 5 is horizontally slidably installed in the moving hole opened in the support rod 4, and the push rod 8 is horizontally slidably installed in the through hole opened in the moving rod 5. When the push rod 8 is moved away from the positioning plate 6, one end of the top rod 9 will slide on the inclined surface of the triangular guide plate 7. Under the action of the triangular guide plate 7 and the top rod 9, the positioning plate 6 will rotate upward until the positioning plate 6 rotates to a vertical state. When the positioning plate 6 can no longer rotate, the push rod 8 continues to move, which will drive the moving rod 5 to move in the moving hole, and drive the positioning plate 6 to move closer to the track plate.

[0025] The support rod 4 has sliding holes on both sides that are connected to the moving hole. The sliding component includes two sliding blocks 10 that are horizontally slidably installed in the two sliding holes. Both sliding blocks 10 are fixedly connected to the moving rod 5. The moving rod 5 slides in the moving hole through the two sliding blocks 10. Under the restriction of the sliding blocks 10, the moving rod 5 can be prevented from detaching from the moving hole.

[0026] Reference Figure 4 The rotating assembly includes a fixed shaft 11 fixedly installed in a rectangular hole and a rotating sleeve 12 rotatably sleeved on the fixed shaft 11. The positioning plate 6 is fixedly installed on the rotating sleeve 12. The rotating sleeve 12 is rotatably installed in the rectangular hole through the fixed shaft 11. The positioning plate 6 can rotate on the fixed shaft 11 through the rotating sleeve 12.

[0027] Reference Figure 5 The transmission assembly includes a threaded rod 13 horizontally rotatably mounted on a connecting plate 1, an adjusting block 14 fixedly mounted on one end of the threaded rod 13, a movable block 15 threadedly sleeved on the threaded rod 13, and two support rods 16 symmetrically fixedly mounted on the movable block 15. One end of each of the two support rods 16 is fixedly connected to two push rods 8. A bracket 17 is fixedly mounted on the connecting plate 1. The threaded rod 13 is rotatably mounted on the bracket 17, and the movable block 15 is horizontally slidably sleeved on the bracket 17.

[0028] The bracket 17 supports the threaded rod 13 and restricts the rotation of the moving block 15. When the adjusting block 14 is rotated, the threaded rod 13 is rotated. The rotation of the threaded rod 13 causes the moving block 15 to move. When the moving block 15 moves, it will drive the two push rods 8 to move simultaneously through the two support rods 16.

[0029] An anti-slip pad is fixedly installed on the front of the positioning plate 6. The anti-slip pad is made of rubber. When the positioning plate 6 comes into contact with the track plate, the anti-slip pad can increase the friction between the positioning plate 6 and the track plate, and prevent the positioning plate 6 from separating from the track plate during disassembly.

[0030] In this invention, when the device is in use, two support rods 4 are inserted into the narrow gap of the track. Then, through the transmission assembly, the two push rods 8 are simultaneously driven to move away from the positioning plate 6. The top rod 9 at one end of the push rod 8 will abut against the inclined surface of the triangular guide plate 7 on the positioning plate 6, thereby driving the positioning plate 6 to rotate until the positioning plate 6 rotates to a vertical position. At this time, when the push rod 8 continues to move, it will drive the moving rod 5 to move in the moving hole and drive the positioning plate 6 to move closer to the track plate until the track plate is clamped between the positioning plate 6 and the connecting plate 1. This greatly reduces the dependence on the operating space, allowing construction personnel to operate efficiently in narrow gaps and effectively improving disassembly efficiency.

[0031] 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 removal device for track covers of an excavator, comprising a connecting plate (1), characterized in that, A hydraulic push rod mechanism (2) is installed on the connecting plate (1). A circular hole is opened in the middle part of the connecting plate (1), and a variable diameter sleeve (3) is provided at the front end of the circular hole. The connecting plate (1) is symmetrically provided with mounting holes. Each of the two mounting holes is fixedly installed with a support rod (4). Both ends of the two support rods (4) are provided with moving holes. Each of the two moving holes is provided with a moving rod (5) which is horizontally slidably installed through a sliding component. One end of the moving rod (5) is provided with a rectangular hole. A positioning plate (6) is rotatably installed in the rectangular hole through a rotating component. A triangular guide plate (7) is fixedly installed on the back of the positioning plate (6). Both ends of the moving rod (5) are provided with through holes. A push rod (8) is horizontally slidably installed in the through holes. An L-shaped top rod (9) is fixedly installed at one end of the push rod (8). One end of the top rod (9) is in contact with the inclined surface of the triangular guide plate (7). The connecting plate (1) is provided with a transmission component for simultaneously driving the two push rods (8) to move.

2. The hydraulic track sleeve removal device for an excavator according to claim 1, characterized in that, The support rod (4) has sliding holes on both sides that are connected to the moving hole. The sliding assembly includes two sliding blocks (10) that are horizontally slidably installed in the two sliding holes. Both sliding blocks (10) are fixedly connected to the moving rod (5).

3. The hydraulic track sleeve removal device for an excavator according to claim 1, characterized in that, The rotating assembly includes a fixed shaft (11) fixedly installed in a rectangular hole and a rotating sleeve (12) rotatably sleeved on the fixed shaft (11), and the positioning plate (6) is fixedly installed on the rotating sleeve (12).

4. The hydraulic track sleeve removal device for an excavator according to claim 1, characterized in that, The transmission assembly includes a threaded rod (13) that is horizontally rotatably mounted on a connecting plate (1), an adjusting block (14) that is fixedly mounted on one end of the threaded rod (13), a moving block (15) that is threaded onto the threaded rod (13), and two support rods (16) that are symmetrically fixedly mounted on the moving block (15). One end of each of the two support rods (16) is fixedly connected to two push rods (8).

5. A hydraulic track sleeve removal device for an excavator according to claim 4, characterized in that, A bracket (17) is fixedly installed on the connecting plate (1), the threaded rod (13) is rotatably installed on the bracket (17), and the moving block (15) is horizontally slidably sleeved on the bracket (17).

6. A hydraulic track sleeve removal device for an excavator according to claim 1, characterized in that, The positioning plate (6) has an anti-slip pad fixedly installed on its front side. The anti-slip pad is made of rubber.

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