A gearbox repair output shaft bearing extractor
Patent Information
- Application Number
- CN202521952336.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-11
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-09-11
AI Technical Summary
[0003]针对上述及现有的相关技术：在对变速箱进行维修时，需要对输出轴上的轴承进行拆卸，在进行拆卸时一般会需要使用到拆卸工具，由于部分输出轴靠近轴承的位置设置有齿轮等物件，在抓夹式拆卸工具使用中，容易出现空间不足爪子无法卡住轴承的问题；因此，针对上述问题提出一种变速箱维修用输出轴轴承拔取器
1.本实用新型在需要对轴承主体进行拆卸时，将螺纹杆上的顶盘顶在轴体上表面，然后推动移动杆让移动杆在放置块内壁和支撑柱表面滑动，移动杆移动时会带动卡块滑动，卡块插入到轴体和轴承主体之间的位置，然后转动螺纹柱让螺纹柱在固定块内壁转动，螺纹柱带动限位盘移动，限位盘顶在移动杆的侧壁，然后转动螺纹杆让螺纹杆在放置块内壁转动，螺纹杆会驱动放置块移动，放置块带动移动杆和卡块移动，卡块推动轴承主体移动，在使用螺纹杆时将螺纹杆和钻机固定，通过设置整个装置能够方便对轴承主体进行拆卸，同时也能够在一定程度上适配不同的规格的轴体和轴承主体。
Smart Images
Figure CN224659341U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gearbox repair technology, specifically a gearbox output shaft bearing puller for gearbox repair. Background Technology
[0002] The transmission is the "intelligent brain" of a car's drivetrain, achieving three core functions by adjusting gear ratios: power matching, reversing, and neutral disengagement. Different types of transmissions have different working principles, but their basic goal is to adjust the engine's output speed and torque by changing the gear ratios.
[0003] Regarding the above and existing related technologies: When repairing a gearbox, it is necessary to disassemble the bearings on the output shaft. Disassembly usually requires the use of disassembly tools. Since some output shafts have gears or other objects near the bearings, there is often insufficient space for the claws to hold the bearings when using gripper-type disassembly tools. Therefore, to address the above problems, an output shaft bearing puller for gearbox repair is proposed. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The output shaft bearing puller for gearbox repair of this utility model includes a shaft body and a puller device. The surface of the shaft body is fitted with a bearing body. The surface of the shaft body is provided with a puller device, which includes a placement block. The placement block is located directly above the shaft body. Three moving rods are slidably connected to the inner surface of the placement block. A locking block is fixedly connected to the bottom end of the moving rod. The locking block is located on the surface of the shaft body and the bearing body. A threaded rod is threadedly connected to the inner wall of the placement block. Rotating the threaded rod causes it to rotate on the inner wall of the placement block. The threaded rod drives the placement block to move. The placement block drives the moving rods and the locking block to move. The locking block pushes the bearing body to slide on the surface of the shaft body. By setting up the placement block, moving rods, locking block and threaded rod, the bearing body can be easily removed.
[0006] Preferably, a top plate is fixedly connected to the bottom end of the threaded rod, and the top plate rests on the surface of the shaft. The top plate can reduce the wear of the threaded rod and increase the contact area between the threaded rod and the shaft.
[0007] Preferably, three support columns are fixedly connected to the inner surface of the placement block. The surface of the support columns is slidably connected to the inner wall of the moving rod. When the moving rod moves, the moving rod slides on the surface of the support columns, and the support columns can support the moving rod.
[0008] Preferably, the bottom end of the placement block is fixedly connected to three fixing blocks, and the inner wall of the fixing block is threaded with a threaded post. When the threaded post rotates, the threaded post rotates on the inner wall of the fixing block, and the fixing block can support the threaded post.
[0009] Preferably, a limiting plate is fixedly connected to the side wall of the threaded column. The limiting plate is located on one side of the moving rod and rests against the side wall of the moving rod. By setting the threaded column and the limiting plate, the position of the moving rod can be restricted.
[0010] Preferably, the bottom of the placement block is provided with three hammering devices. Each hammering device includes a support block, the upper surface of which is fixedly connected to the bottom of the placement block. A rotating rod is rotatably connected to the surface of the support block, and a cone is fixedly connected to the bottom of the rotating rod. The cone is located on the surface of the shaft and the bearing body. The rotating rod drives the cone to rotate, and the cone contacts the shaft and the bearing body. Then, a hammer is used to strike the cone. By setting the support block, rotating rod, and cone, the removal device can be assisted in removing the bearing body.
[0011] Preferably, a hammering disc is fixedly connected to the side wall of the cone head, and a rotating hole is opened on the surface of the rotating rod. The inner wall of the rotating hole of the rotating rod is rotatably connected to the surface of the support block. When the hammer strikes, it will hit the hammering disc, which can increase the contact area between the hammer and the cone head.
[0012] The advantages of this utility model are: 1. When the bearing body needs to be disassembled, the top plate on the threaded rod is placed against the upper surface of the shaft. Then, the moving rod is pushed to slide on the inner wall of the placement block and the surface of the support column. When the moving rod moves, it will cause the locking block to slide. The locking block is inserted into the position between the shaft and the bearing body. Then, the threaded column is rotated to rotate on the inner wall of the fixed block. The threaded column drives the limiting plate to move. The limiting plate is pressed against the side wall of the moving rod. Then, the threaded rod is rotated to rotate on the inner wall of the placement block. The threaded rod will drive the placement block to move. The placement block drives the moving rod and the locking block to move. The locking block pushes the bearing body to move. When using the threaded rod, the threaded rod is fixed to the drilling machine. By setting up the whole device, the bearing body can be easily disassembled. At the same time, it can also adapt to different specifications of shafts and bearing bodies to a certain extent.
[0013] 2. When the bearing body is too tight, this utility model pushes the rotating rod to rotate on the surface of the support block through the rotating hole. The rotating rod drives the cone to rotate, and the cone contacts the position between the shaft and the bearing body. Then, a hammer is used to strike the hammering disc, which drives the cone to move. The cone strikes the shaft and the bearing body. By setting up the whole device, the bearing body can be easily loosened, reducing the difficulty of disassembling the bearing body. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 A three-dimensional structural diagram of the shaft body in an output shaft bearing puller for gearbox repair; Figure 2 For a gearbox repair output shaft bearing puller Figure 1 A schematic diagram of the structure at point A; Figure 3 This is an exploded structural diagram of the extraction device in an output shaft bearing extractor for gearbox repair. Figure 4 A bottom view of the shaft body of an output shaft bearing puller for gearbox repair; Figure 5 For a gearbox repair output shaft bearing puller Figure 4 A schematic diagram of the structure at point B.
[0016] In the diagram: 1. Shaft; 2. Bearing body; 3. Pulling device; 31. Placement block; 32. Moving rod; 33. Locking block; 34. Threaded rod; 35. Top plate; 36. Support column; 37. Fixing block; 38. Threaded column; 39. Limiting plate; 4. Hammering device; 41. Support block; 42. Rotating rod; 43. Cone; 44. Hammering plate; 45. Rotating hole. Detailed Implementation
[0017] 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 scope of protection of the present utility model.
[0018] Please see Figure 1-5As shown, a gearbox output shaft bearing puller includes a shaft body 1 and a puller 3. A bearing body 2 is fitted onto the surface of the shaft body 1. The puller 3 includes a placement block 31 located directly above the shaft body 1. Three moving rods 32 are slidably connected to the inner surface of the placement block 31. A locking block 33 is fixedly connected to the bottom end of each moving rod 32, located on the surfaces of the shaft body 1 and the bearing body 2. A threaded rod 34 is threadedly connected to the inner wall of the placement block 31. During operation, the threaded rod... 34 is placed against the surface of the shaft 1, and then the moving rod 32 is pushed to slide on the inner wall of the placement block 31. The moving rod 32 drives the locking block 33 to slide. The locking block 33 is inserted into the position between the shaft 1 and the bearing body 2. Then the threaded rod 34 is rotated to rotate on the inner wall of the placement block 31. The threaded rod 34 will drive the placement block 31 to move. The placement block 31 drives the moving rod 32 and the locking block 33 to move. The locking block 33 pushes the bearing body 2 to slide on the surface of the shaft 1. By setting the placement block 31, the moving rod 32, the locking block 33 and the threaded rod 34, the bearing body 2 can be easily removed.
[0019] The bottom end of the threaded rod 34 is fixedly connected to the top plate 35. During operation, the threaded rod 34 will drive the top plate 35 to move. The top plate 35 presses against the surface of the shaft 1. The top plate 35 can reduce the wear of the threaded rod 34 and increase the contact area between the threaded rod 34 and the shaft 1.
[0020] Three support columns 36 are fixedly connected to the inner surface of the placement block 31. The surface of the support column 36 is slidably connected to the inner wall of the moving rod 32. During operation, the moving rod 32 slides on the surface of the support column 36, and the support column 36 can support the moving rod 32.
[0021] The bottom end of the placement block 31 is fixedly connected to three fixing blocks 37, and the inner wall of the fixing block 37 is threadedly connected to a threaded post 38; during operation, the threaded post 38 rotates on the inner wall of the fixing block 37, and the fixing block 37 can support the threaded post 38.
[0022] The threaded post 38 is fixedly connected to a limiting disk 39 on its side wall. The limiting disk 39 is located on one side of the moving rod 32. During operation, the threaded post 38 drives the limiting disk 39 to move. The limiting disk 39 presses against the side wall of the moving rod 32. By setting the threaded post 38 and the limiting disk 39, the position of the moving rod 32 can be restricted.
[0023] The bottom end of the placement block 31 is provided with three hammering devices 4. Each hammering device 4 includes a support block 41. The upper surface of the support block 41 is fixedly connected to the bottom end of the placement block 31. A rotating rod 42 is rotatably connected to the surface of the support block 41. A cone 43 is fixedly connected to the bottom end of the rotating rod 42. The cone 43 is located on the surface of the shaft 1 and the bearing body 2. During operation, the rotating rod 42 is pushed to rotate on the surface of the support block 41. The rotating rod 42 drives the cone 43 to rotate. The cone 43 contacts the shaft 1 and the bearing body 2. Then, a hammer is used to strike the cone 43. By setting up the support block 41, the rotating rod 42 and the cone 43, the pulling device 3 can be assisted in pulling out the bearing body 2.
[0024] The side wall of the cone 43 is fixedly connected to a hammering disc 44, and the surface of the rotating rod 42 is provided with a rotating hole 45. The inner wall of the rotating hole 45 of the rotating rod 42 is rotatably connected to the surface of the support block 41. During operation, the rotating rod 42 rotates on the surface of the support block 41 through the rotating hole 45. When the hammer strikes, it will hit the hammering disc 44, which can increase the contact area between the hammer and the cone 43.
[0025] The working principle is as follows: When it is necessary to disassemble the bearing body 2, the top plate 35 on the threaded rod 34 is pressed against the upper surface of the shaft 1. Then, the moving rod 32 is pushed to slide on the inner wall of the placement block 31 and the surface of the support column 36. When the moving rod 32 moves, it will cause the locking block 33 to slide, and the locking block 33 will be inserted between the shaft 1 and the bearing body 2. Then, the threaded column 38 is rotated to rotate on the inner wall of the fixed block 37. The threaded column 38 drives the limiting plate 39 to move. The limiting plate 39 presses against the side wall of the moving rod 32. Then, the threaded rod 34 is rotated to rotate on the inner wall of the placement block 31. The threaded rod 34 will drive the placement block 31 to move. The placement block 31 will drive the moving rod 32 and the locking block 33 to move. The locking block 33 pushes the bearing body 2 to move. When using the threaded rod 34, the threaded rod 34 is fixed to the drilling rig. By setting up the whole device, the bearing body 2 can be easily disassembled. At the same time, it can also be adapted to different specifications of shaft 1 and bearing body 2 to a certain extent. When the bearing body 2 is too tight, the rotating rod 42 is pushed to rotate through the rotating hole 45 on the surface of the support block 41. The rotating rod 42 drives the cone 43 to rotate. The cone 43 contacts the position between the shaft 1 and the bearing body 2. Then, the hammer is used to hit the hammering disc 44. The hammering disc 44 drives the cone 43 to move. The cone 43 hits the shaft 1 and the bearing body 2. By setting up the whole device, the bearing body 2 can be easily loosened, reducing the difficulty of disassembling the bearing body 2.
[0026] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A gearbox output shaft bearing puller for maintenance, comprising a shaft body (1) and a puller (3), wherein a bearing body (2) is fitted onto the surface of the shaft body (1); characterized in that: The surface of the shaft (1) is provided with a pulling device (3). The pulling device (3) includes a placement block (31). The placement block (31) is located directly above the shaft (1). Three moving rods (32) are slidably connected to the inner surface of the placement block (31). A locking block (33) is fixedly connected to the bottom end of the moving rod (32). The locking block (33) is located on the surface of the shaft (1) and the bearing body (2). A threaded rod (34) is threadedly connected to the inner wall of the placement block (31).
2. The output shaft bearing puller for gearbox repair according to claim 1, characterized in that: The bottom end of the threaded rod (34) is fixedly connected to a top plate (35).
3. The output shaft bearing puller for gearbox repair according to claim 1, characterized in that: Three support columns (36) are fixedly connected to the inner surface of the placement block (31), and the surface of the support columns (36) is slidably connected to the inner wall of the moving rod (32).
4. The output shaft bearing puller for gearbox repair according to claim 1, characterized in that: The bottom end of the placement block (31) is fixedly connected to three fixing blocks (37), and the inner wall of the fixing block (37) is threadedly connected to a threaded post (38).
5. The output shaft bearing puller for gearbox repair according to claim 4, characterized in that: The side wall of the threaded column (38) is fixedly connected to a limiting disk (39), which is located on one side of the moving rod (32).
6. The output shaft bearing puller for gearbox repair according to claim 1, characterized in that: The bottom end of the placement block (31) is provided with three hammering devices (4). The hammering device (4) includes a support block (41). The upper surface of the support block (41) is fixedly connected to the bottom end of the placement block (31). A rotating rod (42) is rotatably connected to the surface of the support block (41). A cone (43) is fixedly connected to the bottom end of the rotating rod (42). The cone (43) is located on the surface of the shaft (1) and the bearing body (2).
7. The output shaft bearing puller for gearbox repair according to claim 6, characterized in that: The side wall of the cone (43) is fixedly connected to a hammering disc (44), and the surface of the rotating rod (42) is provided with a rotating hole (45). The inner wall of the rotating hole (45) of the rotating rod (42) is rotatably connected to the surface of the support block (41).