A protective structure for the top of a helicopter fork-shaped component disassembly tool.

Abstract

This utility model discloses a protective structure for the top head of a helicopter fork-shaped component disassembly fixture, including a disassembly platform. A connecting rod position adjustment assembly is movably connected to the left outer wall of the disassembly platform. A connecting rod limiting mechanism is fixedly connected to the top left side of the connecting rod position adjustment assembly. The disassembly platform includes a base plate. A connecting upright plate is fixedly connected to the top right side of the base plate. A hydraulic push rod control block is fixedly connected to the left side of the connecting upright plate. A hydraulic push rod is fixedly connected to the left side of the hydraulic push rod control block. A hydraulic tank is fixedly connected to the bottom left side of the connecting upright plate. A fluid inlet pipe is fixedly connected to the left end of the hydraulic tank. By setting up the disassembly platform, the connecting rod position adjustment assembly, and the connecting rod limiting mechanism, the top head of the helicopter fork-shaped component disassembly fixture is effectively protected, avoiding accidental damage caused by improper operation or structural defects during disassembly. Through meticulous design, the smooth progress of the disassembly process is ensured.

Description

Technical Field

[0001] This utility model relates to the field of helicopter fork-shaped parts technology, specifically a protective structure for the top of a disassembly tooling for helicopter fork-shaped parts. Background Technology

[0002] Helicopter fork components are critical connecting parts on a helicopter, typically used to connect major structural components such as the fuselage, wings, and tail. These fork components withstand enormous forces and torques during helicopter operation, therefore requiring high strength, high toughness, and high durability. The design and structure of these fork components are crucial to the overall performance and safety of the helicopter; damage or failure can lead to serious flight accidents. During the disassembly and maintenance of helicopter fork components, the protective structure of the tooling top plays a vital role. This protective structure effectively protects the fork components from damage during disassembly, while also ensuring the smooth progress of the disassembly work. Through proper design and manufacturing, the protective structure can improve disassembly efficiency, reduce maintenance costs, and provide strong protection for the safe operation of the helicopter.

[0003] According to patent document CN216730662U, a fixing fixture for a fork-shaped connecting rod is disclosed, comprising: an operating platform; and a fixing mechanism detachably connected to the operating platform. The fixing mechanism includes at least two sets of fixing plate assemblies arranged opposite each other and having a limiting space, within which the fork-shaped connecting rod is located. Each fixing plate assembly includes a locking member, an upper fixing plate, and a lower fixing plate arranged sequentially along the vertical direction of the operating platform. The end wall of the lower fixing plate is used to contact and limit the fork-shaped connecting rod, and the end wall of the upper fixing plate protrudes beyond the end wall of the lower fixing plate to contact the upper surface of the fork-shaped connecting rod. The entire device ensures that the fork-shaped connecting rod is firmly fixed to prevent shaking, thereby improving the processing accuracy of the product during manufacturing, increasing the product qualification rate, saving costs, and improving work efficiency.

[0004] In daily use, this series of aircraft exhibits problems such as increased installation clearance of the tail rotor hub fork-shaped parts, abnormal wear of the joint bearings, large changes in tail rotor dynamic balance, and short service life, thus requiring frequent replacement. However, ensuring that the disassembly of the fork-shaped parts is both efficient and safe during the replacement process has become an urgent problem to be solved. Traditional disassembly methods often rely on manual operation, which is not only inefficient but also prone to damage to the fork-shaped parts or tooling top due to improper operation. Utility Model Content

[0005] The purpose of this utility model is to provide a protective structure for the top of a disassembly tooling for helicopter forks, in order to solve the problem mentioned in the background art of how to ensure that the disassembly of forks is both efficient and safe during the replacement process, which has become an urgent problem to be solved. Traditional disassembly methods often rely on manual operation, which is not only inefficient, but also prone to damage to forks or tooling tops due to improper operation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a protective structure for the top of a helicopter fork-shaped component disassembly fixture, including a disassembly platform, wherein a connecting rod position adjustment assembly is movably connected to the left outer wall of the disassembly platform, and a connecting rod limiting mechanism is fixedly connected to the top left side of the connecting rod position adjustment assembly;

[0007] The disassembly platform includes a base plate, a connecting upright plate is fixedly connected to the top right side of the base plate, a hydraulic push rod control block is fixedly connected to the left side of the connecting upright plate, a hydraulic push rod is fixedly connected to the left side of the hydraulic push rod control block, a hydraulic tank is fixedly connected to the bottom left side of the connecting upright plate, and a fluid inlet pipe is fixedly connected to the left end of the hydraulic tank.

[0008] Preferably, a rack rod is fixedly connected to the left side of the hydraulic push rod control block on one side of the bottom of the hydraulic push rod, a columnar crossbar is fixedly connected to the outer wall of the rack rod, a support plate is fixedly connected to the top left side of the base plate, and a U-shaped placement plate is fixedly connected to the top of the support plate.

[0009] Preferably, the connecting rod position adjustment assembly includes a sliding block, the inner wall of which is slidably connected to the outer wall of the columnar crossbar, a gear compartment is fixedly connected to the front side of the outer wall of the sliding block, a throttle handle is rotatably connected to the front side of the gear compartment, a bottom block is fixedly connected to the top of the outer wall of the sliding block, a short rod guide plate is fixedly connected to the right side of the bottom block, and triangular support blocks are fixedly connected to both the front and rear sides of the bottom left side of the short rod guide plate.

[0010] Preferably, the middle part of the short rod guide plate is hollowed out, the top of the two triangular support blocks is fixedly connected to the short rod guide block, the right side of the short rod guide block is attached to the left side of the short rod guide plate, the right side of the short rod guide block is aligned with the middle part of the short rod guide plate, and a connecting short rod is slidably connected between the middle part of the short rod guide plate and the top of the short rod guide block.

[0011] Preferably, the connecting short rod limiting mechanism includes a horizontal plate connecting plate. The right side of the horizontal plate connecting plate is fixedly connected to the middle of the top left side of the short rod guide plate. Horizontal plates are fixedly connected to both the front and rear sides of the bottom of the horizontal plate connecting plate. Multiple connecting blocks are fixedly connected to the inner sides of the two horizontal plates. Sliding blocks are fixedly connected to the left and right sides of the outer sides of the two horizontal plates. Top crossbars are fixedly connected to the bottom of the two right-side sliding blocks. Vertical rods are fixedly connected to the top of the two sets of sliding blocks. Top crossbars are fixedly connected to the top of the front and rear sets of vertical rods.

[0012] Preferably, the inner walls of both sets of sliding blocks are slidably connected with sliding crossbars, the left sides of both sliding crossbars are fixedly connected with Z-shaped connecting plates, the left bottom of both sliding crossbars are fixedly connected with second spring connecting blocks, the right sides of both second spring connecting blocks are fixedly connected with springs, the right ends of both springs are fixedly connected to the left sides of both spring connecting blocks, the tops of both Z-shaped connecting plates are fixedly connected with bidirectional hydraulic push rod connecting bottom rods, the tops of the bidirectional hydraulic push rod connecting bottom rods are fixedly connected with bidirectional hydraulic push rods, the bottom inner walls of both Z-shaped connecting plates are slidably connected with columnar push rods, the inner ends of both columnar push rods extend to the inner side of both Z-shaped connecting plates and are fixedly connected with clamping plates, the outer ends of both columnar push rods are fixedly connected with expansion plates, and the top inner sides of both expansion plates are fixedly connected to the front and rear ends of the bidirectional hydraulic push rods.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Equipped with a disassembly platform and a connecting rod position adjustment assembly, the fork-shaped component and tail shaft can be disassembled safely and efficiently. The entire disassembly process requires no excessive manual force, reducing operational difficulty and labor intensity, while avoiding component damage due to improper operation, thus improving disassembly efficiency and safety. Furthermore, the protective structure of the disassembly fixture's top head is rationally designed, compact, and easy to operate and maintain, providing strong technical support for the disassembly of helicopter fork-shaped components.

[0015] 2. By incorporating a disassembly platform, a connecting rod position adjustment assembly, and a connecting rod limiting mechanism, the top of the helicopter fork-shaped component disassembly fixture is effectively protected, preventing accidental damage caused by improper operation or structural defects during disassembly. Simultaneously, the meticulous design ensures a smooth disassembly process, improving both work efficiency and operator safety. The application of this protective structure undoubtedly provides a safer and more efficient method for disassembling helicopter fork-shaped components, which is of great significance for improving helicopter maintenance efficiency and safety. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the main three-dimensional structure of the present utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional separation structure of the main body of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the disassembly platform of this utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional separation structure of the connecting rod position adjustment component and the connecting rod limiting mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the three-dimensional separation structure of the connecting rod position adjustment component of this utility model;

[0021] Figure 6 This is a schematic diagram of the three-dimensional separation structure of the connecting short rod limiting mechanism of this utility model.

[0022] In the diagram: 1. Disassembly platform; 11. Base plate; 12. Connecting upright plate; 13. Hydraulic push rod control block; 14. Hydraulic push rod; 15. Hydraulic tank; 16. Fluid inlet pipe; 17. Columnar crossbar; 18. Rack and pinion; 19. Support upright plate; 110. U-shaped placement plate; 2. Connecting short rod position adjustment assembly; 21. Sliding block; 22. Gear compartment; 23. Throttle; 24. Base block; 25. Short rod guide plate; 26. Triangular support block; 27. Short rod guide block; 28. Connecting short rod; 3. Connecting short rod limiting mechanism; 31. Horizontal plate connecting plate; 32. Horizontal plate; 33. Connecting block; 34. Sliding block; 35. Upright rod; 36. Top horizontal rod; 37. Spring connecting block; 38. Sliding horizontal rod; 39. Second spring connecting block; 310. Spring; 311. Z-shaped connecting plate; 312. Two-way hydraulic push rod connecting bottom rod; 313. Two-way hydraulic push rod; 314. Expanding plate; 315. Columnar push rod; 316. Clamping plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-2 This utility model provides a technical solution: a protective structure for the top of a helicopter fork-shaped component disassembly tool, including a disassembly platform 1, a connecting rod position adjustment assembly 2 movably connected to the left outer wall of the disassembly platform 1, and a connecting rod limiting mechanism 3 fixedly connected to the top left side of the connecting rod position adjustment assembly 2.

[0025] Please see Figure 3-4 The disassembly platform 1 includes a base plate 11. A connecting upright plate 12 is fixedly connected to the top right side of the base plate 11. A hydraulic push rod control block 13 is fixedly connected to the left side of the connecting upright plate 12. A hydraulic push rod 14 is fixedly connected to the left side of the hydraulic push rod control block 13. A hydraulic tank 15 is fixedly connected to the bottom left side of the connecting upright plate 12. A fluid inlet pipe 16 is fixedly connected to the left end of the hydraulic tank 15. A rack rod 18 is fixedly connected to the left side of the hydraulic push rod control block 13 on one side of the bottom of the hydraulic push rod 14. A columnar crossbar 17 is fixedly connected to the outer wall of the rack rod 18. A supporting upright plate 19 is fixedly connected to the top left side of the base plate 11. A U-shaped placement plate 110 is fixedly connected to the top of the supporting upright plate 19. The connecting short rod position adjustment assembly 2 includes a sliding block 21. The inner wall of the sliding block 21... A gear compartment 22 is fixedly connected to the front side of the outer wall of the sliding block 21, and a handle 23 is rotatably connected to the front side of the gear compartment 22. A bottom block 24 is fixedly connected to the top of the outer wall of the sliding block 21. A short rod guide plate 25 is fixedly connected to the right side of the bottom ...

[0026] When it is necessary to disassemble the fork and tail shaft, first place the fork inside the U-shaped placement plate 110, then rotate the gear inside the gear compartment 22 by turning the handle 23. During the rotation of the gear, it meshes with the rack 18, thereby causing the sliding block 21 to slide on the outer wall of the columnar crossbar 17. During the sliding of the sliding block 21, it causes the bottom block 24 and the short rod guide plate 25 to move, thereby adjusting the position of the connecting short rod 28 so that it fits against the tail shaft of the fork. Then, the hydraulic push rod 14 is activated. The hydraulic push rod 14 pushes the connecting short rod 28 to push the tail shaft fixed in the fork out from the connection of the fork. The connecting short rod 28 prevents damage to the parts when the hydraulic push rod 14 contacts the mounting shaft of the fork during disassembly. The connecting short rod 28 enables the force of the hydraulic push rod to be safely transmitted to the cross-section of the mounting shaft of the fork, thereby extruding the fork.

[0027] Please see Figure 3-5The connecting short rod limiting mechanism 3 includes a horizontal plate connecting plate 31. The right side of the horizontal plate connecting plate 31 is fixedly connected to the middle of the top left side of the short rod guide plate 25. Horizontal plates 32 are fixedly connected to the front and rear sides of the bottom of the horizontal plate connecting plate 31. Multiple connecting blocks 33 are fixedly connected to the inner sides of the two horizontal plates 32. Sliding blocks 34 are fixedly connected to the left and right sides of the outer sides of the two horizontal plates 32. Top crossbars 36 are fixedly connected to the bottom of the two right sliding blocks 34. Vertical rods 35 are fixedly connected to the top of the two sets of sliding blocks 34. Top crossbars 36 are fixedly connected to the top of the two sets of vertical rods 35. Sliding crossbars 38 are slidably connected to the inner walls of the two sets of sliding blocks 34. Z-shaped connecting plates 311 are fixedly connected to the left sides of the two sliding crossbars 38. A second spring connecting block 39 is connected to each of the two second spring connecting blocks 39. A spring 310 is fixedly connected to the right side of each of the two spring 310. The right ends of each spring 310 are fixedly connected to the left side of each of the two spring connecting blocks 37. A bidirectional hydraulic push rod connecting bottom rod 312 is fixedly connected to the top of each of the two Z-shaped connecting plates 311. A bidirectional hydraulic push rod 313 is fixedly connected to the top of each of the bidirectional hydraulic push rod connecting bottom rod 312. A columnar push rod 315 is slidably connected to the bottom of the inner wall of each of the two Z-shaped connecting plates 311. The inner ends of each columnar push rod 315 extend to the inner side of each of the two Z-shaped connecting plates 311 and are fixedly connected to a clamping plate 316. A shrinking and expanding plate 314 is fixedly connected to the outer ends of each of the two columnar push rods 315. The top of the inner side of each shrinking and expanding plate 314 is fixedly connected to the front and rear ends of the bidirectional hydraulic push rod 313.

[0028] When the tail shaft is about to separate from the fork-shaped component, the bidirectional hydraulic push rod 313 is activated. The bidirectional hydraulic push rod 313 pushes the expansion plate 314 inwards. During the movement of the expansion plate 314, the columnar push rod 315 moves, causing the clamping plate 316 to clamp the connecting short rod 28. This ensures that when the connecting short rod is about to completely detach from the short rod guide plate 25 and the short rod guide block 27, the clamping of the two clamping plates 316 stabilizes it, preventing the connecting short rod 28 from falling due to loss of support and causing unnecessary damage to the detached tail shaft. The two clamping plates 316... After clamping the connecting short rod 28, the sliding crossbar 38 slides within the sliding block 34 along with the two clamping plates 316 that hold the connecting short rod 28. At the same time, the second spring connecting block 39, through the elastic cooperation of the spring 310 and the spring connecting block 37, has a certain buffering effect, preventing the impact force generated by the hydraulic push rod 14 during the pushing of the connecting short rod 28 from damaging the overall structure. This further improves the stability and safety of the protective structure, ensuring that the connecting short rod 28 remains stable during disassembly, thus improving disassembly efficiency and safety. The entire protective structure is reasonably designed, easy to operate, and highly practical.

[0029] Working principle: When it is necessary to disassemble the fork-shaped part and the tail shaft, the fork-shaped part is first placed inside the U-shaped placement plate 110. Then, the gear inside the gear chamber 22 is rotated by the throttle 23. During the rotation of the gear, it meshes with the rack 18, thereby causing the sliding block 21 to slide on the outer wall of the columnar crossbar 17. During the sliding of the sliding block 21, the bottom block 24 and the short rod guide plate 25 are moved, thereby adjusting the position of the connecting short rod 28 so that it fits against the tail shaft of the fork-shaped part. Then, the hydraulic push rod 14 is activated. The hydraulic push rod 14 pushes the connecting short rod 28 to push the tail shaft fixed in the fork-shaped part out of the connection of the fork-shaped part. The connecting short rod 28 prevents damage to the parts when the hydraulic push rod 14 contacts the mounting shaft of the fork-shaped part during disassembly. The connecting short rod 28 enables the force of the hydraulic push rod to be safely transmitted to the cross-section of the mounting shaft of the fork-shaped part, thereby extruding the fork-shaped part.

[0030] When the tail shaft is about to separate from the fork-shaped component, the bidirectional hydraulic push rod 313 is activated. The bidirectional hydraulic push rod 313 pushes the expansion plate 314 to move inward. During the movement of the expansion plate 314, the columnar push rod 315 moves. During the movement of the columnar push rod 315, the clamping plate 316 clamps the connecting short rod 28. Thus, when the connecting short rod is about to completely detach from the short rod guide plate 25 and the short rod guide block 27, it is stabilized by the clamping of the two clamping plates 316 to prevent the connecting short rod 28 from falling due to loss of support, which would cause the detached tail shaft to fly out and cause unnecessary damage. After the two clamping plates 316 clamp the connecting short rod 28, the sliding crossbar 38 slides in the sliding groove block 34 along with the two clamping plates 316 that clamp the connecting short rod 28. At the same time, the second spring connecting block 39 has a certain buffering effect through the elastic cooperation of the spring 310 and the spring connecting block 37.

[0031] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective structure for the top head of a helicopter fork-shaped component disassembly fixture, characterized in that: It includes a disassembly platform (1), and a connecting rod position adjustment assembly (2) is movably connected to the left outer wall of the disassembly platform (1). A connecting rod limiting mechanism (3) is fixedly connected to the top left side of the connecting rod position adjustment assembly (2). The disassembly platform (1) includes a base plate (11), a connecting plate (12) is fixedly connected to the top right side of the base plate (11), a hydraulic push rod control block (13) is fixedly connected to the left side of the connecting plate (12), a hydraulic push rod (14) is fixedly connected to the left side of the hydraulic push rod control block (13), a hydraulic tank (15) is fixedly connected to the bottom left side of the connecting plate (12), and a liquid inlet pipe (16) is fixedly connected to the left end of the hydraulic tank (15).

2. The protective structure for the top of a helicopter fork-shaped component disassembly fixture according to claim 1, characterized in that: The left side of the hydraulic push rod control block (13) is fixedly connected to a rack rod (18) on one side of the bottom of the hydraulic push rod (14). A columnar crossbar (17) is fixedly connected to the outer wall of the rack rod (18). A support plate (19) is fixedly connected to the top left side of the base plate (11). A U-shaped placement plate (110) is fixedly connected to the top of the support plate (19).

3. The protective structure for the top of a helicopter fork-shaped component disassembly fixture according to claim 1, characterized in that: The connecting rod position adjustment assembly (2) includes a sliding block (21). The inner wall of the sliding block (21) is slidably connected to the outer wall of the columnar crossbar (17). A gear compartment (22) is fixedly connected to the front side of the outer wall of the sliding block (21). A throttle handle (23) is rotatably connected to the front side of the gear compartment (22). A bottom block (24) is fixedly connected to the top of the outer wall of the sliding block (21). A short rod guide plate (25) is fixedly connected to the right side of the bottom block (24). Triangular support blocks (26) are fixedly connected to the front and rear sides of the bottom left side of the short rod guide plate (25).

4. The protective structure for the top of a helicopter fork-shaped component disassembly fixture according to claim 3, characterized in that: The middle part of the short rod guide plate (25) is hollowed out. The top of the two triangular support blocks (26) is fixedly connected to the short rod guide block (27). The right side of the short rod guide block (27) is attached to the left side of the short rod guide plate (25). The right side of the short rod guide block (27) is aligned with the middle part of the short rod guide plate (25). The middle part of the short rod guide plate (25) and the top of the short rod guide block (27) are slidably connected to the connecting short rod (28).

5. The protective structure for the top of a helicopter fork-shaped component disassembly fixture according to claim 1, characterized in that: The connecting short rod limiting mechanism (3) includes a horizontal plate connecting plate (31). The right side of the horizontal plate connecting plate (31) is fixedly connected to the middle of the top left side of the short rod guide plate (25). The front and rear sides of the bottom of the horizontal plate connecting plate (31) are both fixedly connected to horizontal plates (32). The inner sides of the two horizontal plates (32) are both fixedly connected to multiple connecting blocks (33). The left and right sides of the outer sides of the two horizontal plates (32) are both fixedly connected to sliding blocks (34). The bottom of the two right sliding blocks (34) is fixedly connected to a top horizontal rod (36). The top of the two sets of sliding blocks (34) is fixedly connected to a vertical rod (35). The top of the front and rear sets of vertical rods (35) is fixedly connected to a top horizontal rod (36).

6. The protective structure for the top of a helicopter fork-shaped component disassembly fixture according to claim 5, characterized in that: The inner walls of the front and rear sets of sliding blocks (34) are slidably connected with sliding crossbars (38). Z-shaped connecting plates (311) are fixedly connected to the left side of the two sliding crossbars (38). Second spring connecting blocks (39) are fixedly connected to the left side of the bottom of the two sliding crossbars (38). Springs (310) are fixedly connected to the right side of the two second spring connecting blocks (39). The right ends of the two springs (310) are fixedly connected to the left side of the two spring connecting blocks (37). A bidirectional hydraulic push rod connecting bottom rod is fixedly connected to the top of the two Z-shaped connecting plates (311). (312) A bidirectional hydraulic push rod (313) is fixedly connected to the top of the bidirectional hydraulic push rod connecting bottom rod (312). A columnar push rod (315) is slidably connected to the bottom of the inner wall of the two Z-shaped connecting plates (311). The inner ends of the two columnar push rods (315) extend to the inner side of the two Z-shaped connecting plates (311) and are fixedly connected to a clamping plate (316). The outer ends of the two columnar push rods (315) are fixedly connected to a shrinking plate (314). The top of the inner side of the two shrinking plates (314) are fixedly connected to the front and rear ends of the bidirectional hydraulic push rod (313).

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