Crawler track assembly maintenance system and method

Abstract

The invention discloses a maintenance system and method for a caterpillar track assembly, and belongs to the technical field of engineering machinery caterpillar track assembly manufacturing, the maintenance system comprises a rack, an oil cylinder and a positioning and clamping mechanism which are connected with the rack, and a dismounting and mounting mechanism connected with the oil cylinder; the disassembly and assembly structure comprises a base and a lifting pin detachably connected with the base. The positioning and clamping mechanism comprises a clamping unit and a deformation control mechanism connected with the clamping unit; the deformation control mechanism comprises an inner supporting unit and a deformation recovery unit. The caterpillar track is maintained through the dismounting and mounting mechanism and the positioning and clamping mechanism, and the defect that the caterpillar track with the pin sleeve protruding amount cannot be maintained through an existing maintenance technology is overcome.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery track assembly manufacturing technology, and in particular to a track and track assembly maintenance system and method. Background Technology

[0002] As a crucial walking component of tracked construction machinery, the track assembly operates under complex and harsh conditions, and is prone to malfunctions such as broken track links and misaligned pins, requiring track assembly repair. Existing repair methods typically involve manual disassembly with machine assistance, resulting in poor tooling adaptability, difficulty in restoring damaged deformations, low repair quality and efficiency, and high costs. Furthermore, traditional repair techniques using automated equipment can only repair track assemblies without protruding pins. Summary of the Invention

[0003] The purpose of this invention is to provide a track track assembly maintenance system and method. During the replacement of parts, the internal support unit expands the two track tracks to a distance where the pin sleeve can be inserted. At the same time, it supports the left and right track links when the pin shaft is pressed in, preventing deformation of the left and right track links that would cause the track assembly to lose its rotational flexibility. This solves the problem that while manual maintenance can repair track track assemblies with protruding pin sleeves, existing maintenance techniques cannot achieve a maintenance system that integrates multiple mechanisms.

[0004] In a first aspect, the present invention provides a track track assembly maintenance system, including a frame, a hydraulic cylinder and a positioning and clamping mechanism connected to the frame, and a disassembly and assembly mechanism connected to the hydraulic cylinder; The disassembly and assembly structure includes a base and a top pin detachably connected to the base. The disassembly and assembly structure is movable relative to the positioning and clamping mechanism so that the top pin disassembles the pin of the track track to be repaired. The positioning and clamping mechanism includes a clamping unit and a deformation control mechanism connected to the clamping unit; The clamping unit includes a first clamping block and a second clamping block arranged opposite to each other, and the two can move relative to each other. The space between the two is used to place the disassembled track chain to be repaired. The deformation control mechanism includes an inner support unit and a deformation recovery unit. The inner support unit is used to open up the track to be repaired, and the deformation control mechanism is used to limit the opening of the track. Both the internal support unit and the deformation recovery unit are mounted on the first clamping block.

[0005] Optionally, the base includes a fixed base and a movable base slidably connected to the fixed base; The top pin includes a fixed base top pin and a movable base top pin; wherein, the fixed base top pin is detachably connected to the fixed base, and the movable base top pin is detachably connected to the movable base.

[0006] The movable base can be moved a certain distance according to the pitch of the track assembly being repaired, and the moving distance of the movable base is consistent with the pitch of the track assembly being repaired.

[0007] Optionally, the clamping unit includes a first clamping block and a second clamping block disposed opposite to each other; The inner support unit includes an outer head and an inner head; wherein the inner head is telescopically disposed within the inner cavity of the outer head; The deformation recovery unit includes a first clamping block and a second clamping block that can move relative to each other.

[0008] Optionally, the track track requiring repair includes multiple assemblies connected by pins, the assemblies including a first track link, a second track link, and a pin sleeve; The first track link and the second track link are connected by a pin sleeve.

[0009] In a second aspect, the present invention provides a method for repairing a track track assembly, characterized in that it employs a track track assembly repair system as described in the first aspect, including disassembling and replacing assemblies; wherein, the assembly near the pin sleeve end of the assembly to be replaced is the first assembly, and the assembly near the pin shaft end of the assembly to be replaced is the second assembly. The disassembly assembly includes: clamping the track to be repaired by the clamping unit, and disassembling the assembly that needs to be disassembled in the track to be repaired by the disassembly and assembly mechanism; The replacement assembly includes: opening the pin end of the first assembly through the inner support unit, and connecting the pin sleeve end of the assembly to be replaced to the pin end of the first assembly; opening the pin end of the assembly to be replaced through the inner support unit, and connecting the pin sleeve end of the second assembly to the pin end of the assembly to be replaced; and clamping the outside of the track link through the deformation recovery unit to restore the deformation of the track link.

[0010] Optionally, the step of clamping the track to be repaired by the clamping unit and disassembling the components to be disassembled in the track to be repaired by the disassembly and assembly mechanism includes: clamping the track to be repaired by the first clamping block and the second clamping block, with the clamping height such that the center of the pin of the track to be repaired is at the same height as the center of the top pin of the fixed base and the center of the top pin of the movable base.

[0011] The inner pusher extends to the middle support between the first and second track links of the assembly to be disassembled, preventing deformation of the track links during pin removal. The disassembly mechanism moves in a direction perpendicular to the track length, using the moving base pusher to eject the pin at the pin sleeve end of the assembly to be disassembled. Then, the assembly to be disassembled is shifted one position along the track length towards the fixed base. The moving base pusher ejects the pin at the pin sleeve end of the assembly to be disassembled, and the fixed base pusher ejects the pin sleeve at the pin sleeve end of the assembly to be replaced, completing the assembly disassembly.

[0012] Optionally, the step of opening the pin end of the first assembly by the inner support unit includes opening the first and second track links of the pin end of the first assembly to a size in which the pin sleeve can be inserted by the inner and outer top heads. The inner support unit also serves to prevent deformation of the left and right track links by supporting them between the two track links during the pressing of the pin after replacing the assembly. The deformation recovery unit clamps the outer side of the track link to restore its deformation, which includes using the first clamp and the second clamp to clamp the outer side of the first and second track links to restore their deformation.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The track track assembly repair system and method proposed in this invention utilizes an internal support unit to spread the two track tracks apart during component replacement, extending them to a distance where the pin sleeves can be inserted. This solves the problem that existing repair techniques can only repair track track assemblies without protruding pin sleeves. Furthermore, during component replacement, a deformation recovery unit simultaneously clamps the outer sides of the two track links, effectively controlling the deformation caused by the internal support unit spreading the tracks apart and improving the adaptability of track track repair tooling. This enhances repair efficiency and quality while reducing repair costs. Attached Figure Description

[0014] Figure 1 The diagram shown is a first-view structural schematic of a track and track assembly maintenance system according to an embodiment of the present invention. Figure 2 The diagram shown is a second-view structural schematic of a track and track assembly maintenance system in one embodiment of the present invention. Figure 3 The diagram shown is a schematic diagram of a track link structure in one embodiment of the present invention; Figure 4 The diagram shown is a schematic diagram of replacing the assembly in one embodiment of the present invention. Detailed Implementation

[0015] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details. In this description, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0016] Example 1 This embodiment describes a track and track assembly maintenance system, such as... Figures 1-3 As shown, it includes a frame 1, a hydraulic cylinder 4 and a positioning and clamping mechanism 3 connected to the frame 1, and a disassembly and assembly mechanism 2 connected to the hydraulic cylinder 4. The disassembly structure 2 includes a base and a top pin detachably connected to the base. The disassembly structure 2 can move relative to the positioning clamping mechanism 3 so that the top pin disassembles the pin 44 of the track track to be repaired. The positioning and clamping mechanism 3 includes a clamping unit and a deformation control mechanism connected to the clamping unit; The clamping unit includes a first clamping block 31 and a second clamping block 32 that are arranged opposite to each other and can move relative to each other. The space between them is used to place the disassembled track chain to be repaired. The deformation control mechanism includes an inner support unit and a deformation recovery unit. The inner support unit is used to open up the track to be repaired, and the deformation control mechanism is used to limit the opening of the track. Both the internal support unit and the deformation recovery unit are mounted on the first clamping block 31.

[0017] The base includes a fixed base 21 and a movable base 23 that is slidably connected to the fixed base 21; The top pin includes a fixed base top pin 22 and a movable base top pin 24; wherein, the fixed base top pin 22 is detachably connected to the fixed base 21, and the movable base top pin 24 is detachably connected to the movable base 23.

[0018] In practical applications, the hydraulic cylinder 4 provides power to the disassembly and assembly structure 2, driving the disassembly and assembly structure 2 to move.

[0019] The internal support unit includes an outer head 331 and an inner head 332; wherein, the inner head 332 is telescopically disposed within the cavity of the outer head 331; The deformation recovery unit includes a first clamping block 341 and a second clamping block 342 that are movable relative to each other.

[0020] The track track requiring repair includes multiple assemblies connected by pins 44, such as... Figure 4 As shown, the assembly includes a first track link 41, a second track link 42, and a pin sleeve 43; wherein the first track link 41 and the second track link 42 are connected by the pin sleeve 43.

[0021] Example 2 Based on Example 1, this example introduces a maintenance method for track and rail assembly, specifically including the following: In one specific embodiment of the present invention, an assembly includes a first track link 41, a second track link 42, and a pin sleeve 43. In practical applications, the process of repairing the track link assembly involves disassembling and replacing the assembly. The assembly near the pin sleeve 43 end of the assembly to be replaced is defined as the first assembly, and the assembly near the pin shaft 44 end of the assembly to be replaced is defined as the second assembly. Figure 4 As shown, the part enclosed in the dashed box is the assembly to be replaced. Figure 4 In the diagram, the lower assembly enclosed by the dotted line can be understood as the first assembly, and the upper assembly as the second assembly.

[0022] The process of disassembling the assembly includes: First, use the first clamping block 31 and the second clamping block 32 to clamp the track assembly to be repaired. The clamping height can make the center of the pin 44 of the track to be repaired, the center of the fixed base top pin 22, and the center of the movable base top pin 24 at the same height. The inner pusher 332 extends to the middle of the first track link 41 and the second track link 42 of the assembly to be disassembled, supporting the track link and preventing deformation during the removal of the pin 44. The disassembly mechanism 2 moves perpendicular to the track length direction, and the pin 44 at the pin sleeve 43 end of the assembly to be disassembled is pushed out by the moving base pusher pin 24. At this time, the assembly to be disassembled is shifted one position along the track length direction towards the fixed base. The pin 44 at the pin sleeve 44 end of the assembly to be disassembled is pushed out by the moving base pusher pin 24, and simultaneously, the pin sleeve 43 at the pin sleeve 43 end of the assembly to be replaced is pushed out by the fixed base pusher pin 22. At this point, the assembly to be replaced is divided into two parts: one part is the first track link 41, and the other part is the assembly of the pin 44, pin sleeve 43, and second track link 42. The assembly to be disassembled is then removed from the track assembly.

[0023] like Figure 3 As shown, when the pin 44 is pressed in, since the pin 44 and the track link shaft hole are interference fit, the distance between the first track link 41 and the second track link 42 will become smaller due to the frictional force of the pin 44 pressing in. Therefore, an inner support unit is needed to provide support in the middle.

[0024] After the damaged assembly is disassembled, a new assembly needs to be inserted. Because this invention addresses the repair of track and track assemblies with protruding pin sleeves 43, it is necessary to insert an assembly with protruding pin sleeves 43.

[0025] The process of replacing the assembly includes: The first track link 41 and the second track link 42 at the pin 44 end of the first assembly are opened by the inner head 332 and the outer head 331, and opened to the size where the pin sleeve 43 can be inserted (because the pin 43 has a protrusion). The pin sleeve 43 end of the assembly to be replaced is concentric with the shaft hole of the first assembly, the pin 44 is pressed into the shaft hole, and the pin sleeve 43 end of the assembly to be replaced is connected to the pin 44 end of the first assembly. The first track link 41 and the second track link 42 of the pin shaft 44 end of the assembly to be replaced are opened by the inner head 332 and the outer head 331, and opened to the size where the pin sleeve 43 can be inserted. The pin sleeve 43 end of the second assembly is concentric with the shaft hole of the assembly to be replaced, the pin is pressed into the shaft hole, and the pin sleeve 43 end of the second assembly is connected to the pin shaft 44 end of the assembly to be replaced, thus completing the replacement of the assembly.

[0026] During the process of spreading out the track links, the deformation caused by spreading out the track links is simultaneously restored by clamping the outer sides of the first track link 41 and the second track link 42 with the first clamping block 341 and the second clamping block 342.

Claims

1. A track and track assembly maintenance system, characterized in that, It includes a frame (1), a hydraulic cylinder (4) and a positioning and clamping mechanism (3) connected to the frame (1), and a disassembly and assembly mechanism (2) connected to the hydraulic cylinder (4). The disassembly structure (2) includes a base and a top pin detachably connected to the base. The disassembly structure (2) is movable relative to the positioning clamping mechanism (3) so that the top pin disassembles the pin (44) of the track track to be repaired. The positioning and clamping mechanism (3) includes a clamping unit and a deformation control mechanism connected to the clamping unit; The clamping unit includes a first clamping block (31) and a second clamping block (32) arranged opposite to each other, and the two can move relative to each other. The space between the two is used to place the disassembled track chain to be repaired. The deformation control mechanism includes an inner support unit and a deformation recovery unit. The inner support unit is used to open up the track to be repaired, and the deformation control mechanism is used to limit the opening of the track. Both the inner support unit and the deformation recovery unit are mounted on the first clamping block (31).

2. The track and track assembly maintenance system according to claim 1, characterized in that, The base includes a fixed base (21) and a movable base (23) slidably connected to the fixed base (21). The top pin includes a fixed base top pin (22) and a movable base top pin (24); wherein the fixed base top pin (22) is detachably connected to the fixed base (21), and the movable base top pin (24) is detachably connected to the movable base (23).

3. The track and track assembly maintenance system according to claim 1, characterized in that, The inner support unit includes an outer head (331) and an inner head (332); wherein the inner head (332) is telescopically disposed within the cavity of the outer head (331).

4. The track and track assembly maintenance system according to claim 1, characterized in that, The deformation recovery unit includes a first clamping block (341) and a second clamping block (342) that are movable relative to each other.

5. The track and track assembly maintenance system according to claim 1, characterized in that, The track track requiring repair includes multiple assemblies connected by pins (44), the assemblies including a first track link (41), a second track link (42), and a pin sleeve (43). The first track link (41) and the second track link (42) are connected by a pin sleeve (43).

6. A method for maintaining a track and track assembly, characterized in that, The track track assembly maintenance system described in any one of claims 1-5 includes disassembling and replacing the assembly; wherein the assembly near the pin sleeve (43) end of the assembly to be replaced is the first assembly, and the assembly near the pin shaft (44) end of the assembly to be replaced is the second assembly. The disassembly assembly includes: clamping the track to be repaired by the clamping unit, and disassembling the assembly that needs to be disassembled in the track to be repaired by the disassembly and assembly mechanism (2); The replacement assembly includes: opening the pin (44) end of the first assembly through the inner support unit, connecting the pin sleeve (43) end of the assembly to be replaced to the pin (44) end of the first assembly; opening the pin (44) end of the assembly to be replaced through the inner support unit, connecting the pin sleeve (43) end of the second assembly to the pin (44) end of the assembly to be replaced; and clamping the outer side of the track link through the deformation recovery unit to restore the deformation of the track link.

7. The track and track assembly maintenance method according to claim 6, characterized in that, The step of clamping the track to be repaired by the clamping unit and disassembling the components in the track to be repaired by the disassembly and assembly mechanism (2) includes: clamping the track to be repaired by the first clamping block (31) and the second clamping block (32), with the clamping height such that the center of the pin (44) of the track to be repaired is at the same height as the center of the fixed base top pin (22) and the center of the movable base top pin (24).

8. The track and track assembly maintenance method according to claim 6, characterized in that, The method of opening the pin (44) end of the first assembly through the inner support unit includes opening the first track link (41) and the second track link (42) of the pin (44) end of the first assembly to the size that the pin sleeve (43) can be inserted through the inner head (332) and the outer head (331); The deformation recovery unit clamps the outer side of the track link to restore the deformation of the track link, which includes the first clamp (341) and the second clamp (342) clamping the outer side of the first track link (41) and the second track link (42) to restore the deformation of the track link.

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