Disassembling tool

Abstract

The utility model relates to the technical field of aviation maintenance, in particular to a disassembling tool which is used for disassembling a bearing lubricating oil transmission pipe and comprises a fixing frame body, a handle, a connecting rod and a limiting block, the handle and the connecting rod are connected to the fixing frame body in the front-back direction, the front end of the handle is connected to the rear end of the connecting rod, and the limiting block is arranged on the fixing frame body. The front end of the connecting rod is used for being connected to the bearing lubricating oil conveying pipe, and the limiting block is arranged on the connecting rod and protrudes out of the outer side wall of the connecting rod in the radial direction of the connecting rod. In conclusion, when the dismounting tool is used for dismounting the bearing lubricating oil transmission pipe, the bearing lubricating oil transmission pipe can be prevented from colliding with other parts in an engine body in the dismounting process, and the parts of the engine are prevented from being damaged in the dismounting process.

Description

Technical Field

[0001] This utility model relates to the field of aviation maintenance technology, and in particular to a disassembly tool. Background Technology

[0002] Currently, during the installation and inspection of the V2500-A5 aircraft engine, the process of checking for carbon buildup in the bearing cavity and lubricating oil pipe requires disassembling the bearing lubricating oil transmission pipe. This transmission pipe is tightly connected to the airframe, and considerable pulling force is required to pull it out. However, due to the limited space for removing the transmission pipe, it is easy for the transmission pipe to collide with other components when being pulled out, causing damage to engine parts and affecting the normal operation of the engine. Utility Model Content

[0003] The purpose of this utility model is to provide a dismantling tool to solve the technical problem that when disassembling the bearing lubricating oil transmission pipe, the transmission pipe is prone to collide with other components, causing damage to engine components and thus affecting the normal operation of the engine.

[0004] To achieve the above objectives, this utility model provides a disassembly tool for disassembling a bearing oil transmission pipe, comprising a fixed frame, a handle, a connecting rod, and a limiting block. The handle and the connecting rod are connected to the fixed frame in a front-to-back direction. The front end of the handle is connected to the rear end of the connecting rod, and the front end of the connecting rod is used to connect to the bearing oil transmission pipe. The limiting block is disposed on the connecting rod and protrudes radially from the outer side wall of the connecting rod. When the connecting rod moves backward a certain distance, the limiting block abuts against the fixed frame, preventing the connecting rod from moving further backward.

[0005] Optionally, the fixed frame body is provided with a receiving cavity, the rear side of the fixed frame body is provided with a first through hole extending into the receiving cavity, the handle passes through the first through hole and is slidably connected to the first through hole, the front side of the fixed frame body is provided with a second through hole extending into the receiving cavity, the connecting rod passes through the second through hole and is slidably connected to the second through hole, and the handle and the connecting rod are connected within the receiving cavity.

[0006] Optionally, a connecting spring is also included, with its two ends connected to the front end of the handle and the rear end of the connecting rod, respectively.

[0007] Optionally, a reading pointer is also included. The reading pointer is located on the outer side wall of the handle and within the receiving cavity. The reading pointer extends radially toward the handle. The outer surface of the fixing frame is provided with an elongated hole corresponding to the reading pointer. The elongated hole extends through the receiving cavity and extends in the front-back direction. The reading pointer passes through the elongated hole and protrudes from the outer surface of the fixing frame.

[0008] Optionally, the outer side wall of the connecting rod is provided with a limiting hole that extends radially through it. The limiting hole is located in front of the second through hole, and the limiting block is detachably connected to the limiting hole.

[0009] Optionally, the connecting rod is provided with a plurality of limiting holes spaced apart along its axial direction, and the limiting block is detachably connected to any of the limiting holes.

[0010] Optionally, a buffer spring is also included, which is disposed between the limiting block and the fixing frame, with its two ends connected to the rear side of the limiting block and the front side of the fixing frame, respectively.

[0011] Optionally, the connecting rod includes a connecting block, a first rod body, a second rod body, and a third rod body. The first rod body is slidably connected to the fixed frame. The rear end of the first rod body is connected to the front end of the handle. The limiting block is disposed on the first rod body. The front end of the first rod body is connected to the rear end of the second rod body. The front end of the second rod body is provided with a first connecting hole extending in the front-rear direction. The outer side wall of the second rod body is provided with a second connecting hole that extends radially through it. The second connecting hole communicates with the first connecting hole. The front end of the third rod body is provided with a connecting thread for connecting to the bearing lubricating oil transmission pipe. The rear end of the third rod body extends into the first connecting hole. The outer side wall of the third rod body is provided with a third connecting hole that extends radially through it. The connecting block passes through the second connecting hole and the third connecting hole to connect the second rod body and the third rod body.

[0012] Optionally, it may also include a plurality of support components, which are disposed around the connecting rod on the front side of the fixed frame. Each support component includes a base and a support foot. The base is connected to the front side of the fixed frame, and the support foot is adjustablely connected to the base in the front-back direction.

[0013] Optionally, the handle includes a handle rod and a handle head, the handle rod is slidably connected to the fixed frame, the handle head is located at the rear end of the handle rod, the front end of the handle rod is connected to the rear end of the connecting rod, and the handle head protrudes radially from the outer side wall of the handle rod.

[0014] Compared with the prior art, the disassembly tool of this utility model has the following advantages:

[0015] In this disassembly tool, the handle and the connecting rod are connected and slidably connected to the fixed frame in the front-back direction. The connecting rod passes through a hole in the engine block and connects to the bearing oil transmission pipe. The operator can pull the handle backward to move the connecting rod backward and pull out the bearing oil transmission pipe. Furthermore, a limiting block is provided on the connecting rod and protrudes radially from the outer side wall of the connecting rod. When the connecting rod moves backward a certain distance, the limiting block is at the fixed frame, preventing the connecting rod and the bearing oil transmission pipe from moving further backward. This prevents the bearing oil transmission pipe from colliding with other parts in the engine block during disassembly and avoids damage to engine parts due to the disassembly process. Attached Figure Description

[0016] Figure 1 This is the front view of the disassembly tool of this utility model.

[0017] Figure 2 This is a cross-sectional view of the disassembly tool of this utility model.

[0018] Figure 3 This is a cross-sectional view of the disassembly tool of this utility model connected to the bearing lubricating oil transmission pipe.

[0019] Reference numerals: 1. Fixed frame; 11. Receiving cavity; 12. First through hole; 13. Second through hole; 14. Elongated hole; 2. Handle; 21. Handle rod; 22. Handle head; 3. Connecting rod; 31. Limiting hole; 32. Connecting block; 33. First rod body; 34. Second rod body; 341. First connecting hole; 342. Second connecting hole; 35. Third rod body; 351. Third connecting hole; 352. Connecting thread; 4. Limiting block; 5. Connecting spring; 6. Reading pointer; 7. Support assembly; 71. Base; 72. Support foot; 8. Bearing lubricating oil transmission pipe; 9. Engine body. Detailed Implementation

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0021] In the description of this utility model, it should be understood that the terms "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, the terms "first" and "second" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] like Figures 1 to 3 As shown, this utility model discloses a disassembly tool for disassembling a bearing oil transmission pipe 8. It includes a fixed frame 1, a handle 2, a connecting rod 3, and a limiting block 4. The handle 2 and the connecting rod 3 are connected to the fixed frame 1 in a front-to-back direction. The front end of the handle 2 is connected to the rear end of the connecting rod 3, and the front end of the connecting rod 3 is used to connect to the bearing oil transmission pipe 8. The limiting block 4 is located on the connecting rod 3 and protrudes radially from the outer side wall of the connecting rod 3. When the connecting rod 3 moves backward a certain distance, the limiting block 4 abuts against the fixed frame 1, preventing the connecting rod 3 from moving further backward.

[0024] In the above technical solution, the handle 2 and the connecting rod 3 are connected and slidably connected to the fixed frame 1 in the front-back direction. The connecting rod 3 passes through a hole on the engine block 9 and connects to the bearing oil transmission pipe 8. The operator can pull the handle 2 backward to move the connecting rod 3 backward and pull out the bearing oil transmission pipe 8. Furthermore, a limiting block 4 is provided on the connecting rod 3 and protrudes radially from the outer side wall of the connecting rod 3. When the connecting rod 3 moves backward a certain distance, the limiting block 4 is in the fixed frame 1, preventing the connecting rod 3 and the bearing oil transmission pipe 8 from moving backward further. This prevents the bearing oil transmission pipe 8 from colliding with other components inside the engine block 9 during disassembly and avoids damage to engine components due to the disassembly process.

[0025] Furthermore, the fixed frame 1 is provided with a receiving cavity 11. The rear side of the fixed frame 1 is provided with a first through hole 12 extending into the receiving cavity 11. The handle 2 passes through the first through hole 12 and is slidably connected to the first through hole 12. The front side of the fixed frame 1 is provided with a second through hole 13 extending into the receiving cavity 11. The connecting rod 3 passes through the second through hole 13 and is slidably connected to the second through hole 13. The handle 2 and the connecting rod 3 are connected within the receiving cavity 11. The receiving cavity 11 facilitates the connection of the handle 2 and the connecting rod 3 by the operator. Other components related to the handle 2 and the connecting rod 3 can also be placed within the receiving cavity 11. Furthermore, the outer side of the fixed frame 1 can be provided with a maintenance through hole extending into the receiving cavity 11 to facilitate the maintenance and adjustment of the components within the receiving cavity by the operator through the maintenance through hole.

[0026] Furthermore, it also includes a connecting spring 5, the two ends of which are respectively connected to the front end of the handle 2 and the rear end of the connecting rod 3. This allows the operator to apply a pulling force corresponding to the length of the bearing oil transmission pipe 8 when pulling the handle 2 a certain distance, making the pulling operation smoother and more comfortable. It also allows the operator to remember the distance that the handle 2 needs to be pulled out to remove the bearing oil transmission pipe 8, and then directly pull out that distance when removing the next bearing oil transmission pipe 8, so as to quickly remove other bearing oil transmission pipes 8 and improve the removal efficiency.

[0027] Furthermore, it also includes a reading pointer 6, which is located on the outer wall of the handle 2 and inside the receiving cavity 11. The reading pointer 6 extends radially toward the handle 2. The outer surface of the fixing frame 1 is provided with an elongated hole 14 corresponding to the reading pointer 6. The elongated hole 14 penetrates into the receiving cavity 11 and extends in the front-back direction. The reading pointer 6 passes through the elongated hole 14 and protrudes from the outer surface of the fixing frame 1. At this time, the distance pulled out can be judged by observing the reading pointer 6. For a more intuitive judgment, a reading pointer can be provided next to the elongated hole 14.

[0028] Furthermore, the outer side wall of the connecting rod 3 is provided with a limiting hole 31 that extends radially through it. The limiting hole 31 is located in front of the second through hole 13. The limiting block 4 is detachably connected to the limiting hole 31. The limiting block 4 can be a pin, and the limiting block 4 protrudes from both sides of the connecting rod 3.

[0029] Furthermore, the connecting rod 3 is provided with a plurality of limiting holes 31 spaced apart along its axial direction, and the limiting block 4 is detachably connected to any of the limiting holes 31 so that the operator can adjust the travel of the connecting rod 3 according to the specific situation.

[0030] Furthermore, it also includes a buffer spring, which is disposed between the limiting block 4 and the fixed frame 1. The two ends of the buffer spring are respectively connected to the rear side of the limiting block 4 and the front side of the fixed frame 1 to buffer the collision between the limiting block 4 and the fixed frame 1.

[0031] Furthermore, the connecting rod 3 includes a connecting block 32, a first rod body 33, a second rod body 34, and a third rod body 35. The first rod body 33 is slidably connected to the fixed frame 1, and the rear end of the first rod body 33 is connected to the front end of the handle 2. The limiting block 4 is disposed on the first rod body 33, and the front end of the first rod body 33 is connected to the rear end of the second rod body 34. The front end of the second rod body 34 is provided with a first connecting hole 341 extending in the front-rear direction, and the outer side wall of the second rod body 34 is provided with a second connecting hole 342 penetrating radially therethrough. The second connecting hole 342 communicates with the first connecting hole 341. The front end of the third rod body 35 is provided with a connecting thread 352 for connecting to the bearing lubricating oil transmission pipe 8. The rear end of the three rods 35 extends into the first connecting hole 341. The outer side wall of the third rod 35 is provided with a third connecting hole 351 that runs radially through it. The connecting block 32 passes through the second connecting hole 342 and the third connecting hole 351 to connect the second rod 34 and the third rod 35. Before extending into the engine body 9, the second rod 34 and the third rod 35 are separate. After extending into the engine body 9, the connecting thread 352 of the third rod 35 is first connected to the bearing lubricating oil transmission pipe 8, and then the rear end of the third rod 35 is extended into the first connecting hole 341 of the second rod 34. Then the connecting block 32 passes through the second connecting hole 342 and the third connecting hole 351 to realize the connection between the second rod 34 and the third rod 35.

[0032] Furthermore, it also includes multiple support components 7, which are arranged around the connecting rod 3 on the front side of the fixed frame 1. Each support component 7 includes a base 71 and a support foot 72. The base 71 is connected to the front side of the fixed frame 1, and the support foot 72 is adjustablely connected to the base 71 in the front-rear direction, so that the fixed housing can be abutted against the outer wall of the engine body 9 through the support components 7, which facilitates operation by the staff.

[0033] Furthermore, the handle 2 includes a handle rod 21 and a handle head 22. The handle rod 21 is slidably connected to the fixed frame 1, and the handle head 22 is located at the rear end of the handle rod 21. The front end of the handle rod 21 is connected to the rear end of the connecting rod 3. The handle head 22 protrudes radially from the outer side wall of the handle rod 21. The operator can pull the connecting rod 3 backward by holding the handle head 22. In addition, the handle head 22 can also prevent the handle 2 from moving excessively forward into the receiving cavity 11.

[0034] Furthermore, fixed setting and fixed connection refer to the fixed relative positional relationship of two components, including but not limited to fixing by connectors, fixing by welding, fixing by adhesive, fixing by integral molding, and fixing by snap-fit ​​connection.

[0035] Furthermore, detachable connection and detachable setting refer to the ability of two components to be repeatedly assembled and disassembled without damage or severe deformation, including but not limited to fixing by connectors or fixing by snap-fit ​​connections.

[0036] Furthermore, sliding connection and sliding setting refer to the connection between two connected components, where one component can slide along a fixed trajectory on the other component, including but not limited to connection by sliding a slider into a groove, or connection by inserting a slider into a hole whose size and profile match the slider.

[0037] Furthermore, adjustable connection and adjustable setting refer to the fact that the two connected components can be adjusted in their relative positions before being fixed, and the aforementioned adjustment and fixing process can be repeated, including but not limited to connection through elongated holes and connectors, and connection through sliding connection plus detachable connection.

[0038] Furthermore, rotatable connection and rotatable setting refer to the ability of two connected components to rotate, including but not limited to connections via bearings or clearance fits.

[0039] Furthermore, the connectors include, but are not limited to, fasteners, straps, ropes, pneumatic connectors, hydraulic connectors, flanges, Velcro, and buttons.

[0040] In summary, the present invention provides a disassembly tool, the technical effects of which are as follows:

[0041] In this disassembly tool, the handle 2 and the connecting rod 3 are connected and slidably connected to the fixed frame 1 in the front-back direction. The connecting rod 3 passes through a hole on the engine block 9 and connects to the bearing oil transmission pipe 8. The operator can pull the handle 2 backward to move the connecting rod 3 backward and pull out the bearing oil transmission pipe 8. Furthermore, a limiting block 4 is provided on the connecting rod 3 and protrudes radially from the outer side wall of the connecting rod 3. When the connecting rod 3 moves backward a certain distance, the limiting block 4 is on the fixed frame 1, preventing the connecting rod 3 and the bearing oil transmission pipe 8 from moving backward further. This prevents the bearing oil transmission pipe 8 from colliding with other components inside the engine block 9 during the disassembly process and avoids damage to engine components due to the disassembly process.

[0042] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A dismounting tool, characterized in that The utility model provides a bearing oil transfer pipe (8) is dismantled, including fixed frame body (1), handle (2), connecting rod (3) and limit block (4), handle (2) and connecting rod (3) are connected in the front and back direction in fixed frame body (1), the front end of handle (2) is connected in the rear end of connecting rod (3), the front end of connecting rod (3) is used to be connected in bearing oil transfer pipe (8), limit block (4) is located in connecting rod (3), and the outside wall of connecting rod (3) is protruded in the radial direction of connecting rod (3) along the radial direction of connecting rod (3). When connecting rod (3) moves back a certain distance, limit block (4) abuts on fixed frame body (1), so that connecting rod (3) cannot continue to move back.

2. The disassembly tool according to claim 1, characterized in that The fixed frame body (1) is provided with a receiving cavity (11), the rear side of the fixed frame body (1) is provided with a first through hole (12) penetrating into the receiving cavity (11), the handle (2) passes through the first through hole (12) and is slidably connected to the first through hole (12), the front side of the fixed frame body (1) is provided with a second through hole (13) penetrating into the receiving cavity (11), the connecting rod (3) passes through the second through hole (13) and is slidably connected to the second through hole (13), the handle (2) and the connecting rod (3) are connected in the receiving cavity (11).

3. The tool of claim 2, wherein It further comprises a connecting spring (5), both ends of the connecting spring (5) are connected to the front end of the handle (2) and the rear end of the connecting rod (3) respectively.

4. The tool of claim 3, wherein It further comprises a reading pointer (6), the reading pointer (6) is arranged on the outer side wall of the handle (2) and located in the receiving cavity (11), the reading pointer (6) extends radially towards the handle (2), the outer surface of the fixed frame body (1) is provided with a long hole (14) corresponding to the reading pointer (6), the long hole (14) penetrates into the receiving cavity (11) and extends in the front and back direction, the reading pointer (6) passes through the long hole (14) and protrudes from the outer surface of the fixed frame body (1).

5. The tool of claim 2 wherein, The outer side wall of the connecting rod (3) is provided with a limiting hole (31) penetrating in the radial direction thereof, the limiting hole (31) is located in front of the second through hole (13), and the limit block (4) is detachably connected to the limiting hole (31).

6. The tool of claim 5, wherein The connecting rod (3) is provided with a plurality of limiting holes (31) arranged at intervals in the axial direction thereof, and the limit block (4) is detachably connected to any one of the limiting holes (31).

7. The tool of claim 2 wherein, It further comprises a buffer spring, the buffer spring is arranged between the limit block (4) and the fixed frame body (1), and both ends of the buffer spring are connected to the rear side of the limit block (4) and the front side of the fixed frame body (1) respectively.

8. The tool of claim 1, wherein The connecting rod (3) comprises a connecting block (32), a first rod body (33), a second rod body (34) and a third rod body (35), the first rod body (33) is slidably connected to the fixed frame body (1), the rear end of the first rod body (33) is connected to the front end of the handle (2), the limiting block (4) is arranged on the first rod body (33), the front end of the first rod body (33) is connected to the rear end of the second rod body (34), the front end of the second rod body (34) is provided with a first connecting hole (341) extending in the front-rear direction, the outer side wall of the second rod body (34) is provided with a second connecting hole (342) extending in the radial direction, the second connecting hole (342) is communicated with the first connecting hole (341), the front end of the third rod body (35) is provided with a connecting thread (352) for connecting to the bearing sliding oil transmission pipe (8), the rear end of the third rod body (35) extends into the first connecting hole (341), the outer side wall of the third rod body (35) is provided with a third connecting hole (351) extending in the radial direction, the connecting block (32) passes through the second connecting hole (342) and the third connecting hole (351) to connect the second rod body (34) and the third rod body (35).

9. The disassembly tool according to claim 1, characterized in that A plurality of support assemblies (7) are further arranged on the front side of the fixed frame body (1) around the connecting rod (3), the support assembly (7) comprises a base (71) and a support leg (72), the base (71) is connected to the front side of the fixed frame body (1), and the support leg (72) is adjustably connected to the base (71) in the front-rear direction.

10. The tool of claim 1, wherein The handle (2) comprises a handle rod (21) and a handle head (22), the handle rod (21) is slidably connected to the fixed frame body (1), the handle head (22) is arranged at the rear end of the handle rod (21), and the front end of the handle rod (21) is connected to the rear end of the connecting rod (3). The handle head (22) protrudes from the outer side wall of the handle rod (21) in the radial direction of the handle rod (21).

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