Tapered roller bearing unloading fixture

Abstract

A kind of taper roller bearing dismounting fixture, comprising: main body mechanism, inner limit clamping mechanism, be arranged on the outside of the main body mechanism, for clamping bearing and continuously providing pre-tightening force;Three buffer support mechanisms, arranged on the outside of the main body mechanism, for buffering and keeping the overall stability of the fixture;Driving mechanism, arranged on the top of the main body mechanism;Pressure mechanism, arranged on the outside of the main body mechanism;Inner support limiting mechanism, arranged on the inside of the main body mechanism;Portable mechanism, arranged on the top of the main body mechanism;By establishing connection relationship between the screw part of the fixture and the jaw component, so that the fixture can be applied to a variety of sizes of bearing dismounting work, while ensuring the stability of bearing dismounting, effectively prevent the fixture from loosening during use, thereby optimizing the versatility of the fixture, improve its use stability, with significant market competitiveness, thereby obtaining significant promotional significance.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical maintenance tooling and fixture technology, specifically relating to a tapered roller bearing removal fixture. Background Technology

[0002] Tapered roller bearings are commonly used in critical equipment such as high-speed train gearboxes, railway freight cars, and gear shafts. These devices require frequent disassembly and reassembly of bearings for component replacement or maintenance. For example, maintenance of high-speed train gearboxes necessitates the removal of the bearing outer ring, while maintenance of double-row tapered roller bearings for railway freight cars requires first disassembling the sealing cover and then separating the inner and outer rings. Furthermore, in some scenarios, such as the assembly and removal of high-speed train bearings, heating methods cannot be used according to regulations; only cold drawing can be employed. This places stringent requirements on the adaptability of specialized removal tools, as conventional tools are insufficient to meet the specific needs of these scenarios.

[0003] In current technology, tapered roller bearing removal clamps mostly use puller-type clamps, which use claws to hook the inner or outer ring of the bearing, rotate the central screw, and use the lever principle to generate pulling force to pull the bearing out of the shaft or bearing housing. Although this method can reduce the difficulty of bearing removal, it has poor versatility, and its claws lack continuous preload, making it difficult to ensure stability during removal.

[0004] To address the aforementioned technical pain points, some existing technical solutions propose adding adjustable components at the jaw connection of the clamp to improve the versatility of puller-type clamps. However, this method still lacks a continuous pre-tightening force on the clamp jaws, which can easily lead to unexpected situations such as clamp loosening during disassembly, posing significant safety hazards and resulting in poor overall stability.

[0005] In view of the above, it is necessary to reasonably improve the existing tapered roller bearing unloading fixture structure. By establishing a connection between the screw and the clamp's jaws, a continuous preload force can be provided during the use of the fixture, improving stability while ensuring its versatility. To this end, the applicant has made a beneficial design, and the technical solution described below arose from this background. Utility Model Content

[0006] The objective of this invention is to provide a tapered roller bearing unloading fixture that is not easily loosened, has high stability, and is highly versatile. It helps to ensure stable unloading of the fixture by establishing a connection between the screw part of the fixture and the gripper component, while maintaining the high versatility of the fixture.

[0007] The objective of this utility model is achieved as follows: a tapered roller bearing unloading fixture, comprising: a main body mechanism, An inner clamping mechanism is located on the outside of the main body mechanism and is used to clamp the bearing and continuously provide preload force. Three buffer support mechanisms are located on the outside of the main body mechanism to buffer and maintain the overall stability of the clamp; A drive mechanism is located at the top of the main body mechanism; The pressing mechanism is located on the outside of the main body mechanism; An internal support limiting mechanism is located on the inner side of the main body mechanism; A portable mechanism is located on top of the main body mechanism; The inner clamping mechanism includes three fixed frames, all of which are installed on the outside of the main body. Each fixed frame has a through opening at its top. A clamping frame is rotatably connected to the inside of each through opening. A connecting frame is rotatably connected to one side of each clamping frame. A rotating seat is rotatably connected to one end of each connecting frame. A first sliding ring is installed on the side of the three rotating seats that are close to each other.

[0008] In a specific embodiment of this utility model, the buffer support mechanism includes a mounting frame, a limiting plate is provided at the top of the mounting frame, two movable rods are connected to the bottom of the limiting plate, a first spring is sleeved on the outer side of each of the two movable rods, one end of each of the two movable rods movably passes through the mounting frame and is connected to a support base, and a second spring is sleeved on the outer side of each of the two movable rods.

[0009] In another specific embodiment of this utility model, the main body mechanism includes a fixing plate, a lead screw is installed at the bottom of the fixing plate, a base is installed at the bottom of the lead screw, and the first sliding ring is installed on the outside of the lead screw.

[0010] In another specific embodiment of this utility model, the driving mechanism includes a U-shaped frame, which is mounted on the top of the fixed plate. A servo motor is mounted on the top of the U-shaped frame, and the output end of the servo motor movably passes through the U-shaped frame and is connected to a coupling. One end of the lead screw movably passes through the fixed plate and is connected to the coupling.

[0011] In another specific embodiment of this utility model, the pressing mechanism includes a second sliding ring, which is installed on the outside of the lead screw. Three fixed seats are installed on the outside of the second sliding ring, and a connecting rod is connected to the bottom of each fixed seat. One end of each of the three connecting rods movably passes through the chassis and is connected to a pressure plate.

[0012] In another specific embodiment of this utility model, the inner support limiting mechanism includes three arc-shaped inner support frames. The three arc-shaped inner support frames are all installed between the fixed plate and the chassis. Two limiting frames are installed on the outer side of each arc-shaped inner support frame. Two limiting holes are opened through the top of each limiting frame. Each movable rod is set in a corresponding limiting hole.

[0013] In a further specific embodiment of this utility model, the portable mechanism includes a handle, both ends of which are movably inserted through a fixing plate and connected to a limiting plate, and an anti-slip sleeve is provided on the outer side of the handle.

[0014] In a further specific embodiment of this utility model, magnetic blocks are installed at both ends of the top of each support base, and anti-slip texture is provided on the bottom of each support base.

[0015] The beneficial effects of this utility model are as follows: By establishing a connection between the screw part of the clamp and the jaw component, the clamp can be applied to the removal of bearings of various sizes, while ensuring the stability of the bearing during removal and effectively preventing the clamp from loosening during use. This optimizes the versatility of the clamp, improves its stability, and has significant market competitiveness, thus gaining significant promotional value. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model in the front view state; Figure 2 This is a three-dimensional view of the overall structure of the present invention in a side view state; Figure 3 This is a partial three-dimensional view of the structure of this utility model in the front view state; Figure 4 This is an enlarged perspective view of the inner clamping mechanism of this utility model in the disassembled state; Figure 5 This is an enlarged perspective view of the buffer support mechanism of this utility model in a disassembled state; Figure 6 This is a partial three-dimensional view of the structure of this utility model in a disassembled state.

[0017] In the diagram: 1. Main body mechanism, 101. Fixing plate, 102. Lead screw, 103. Chassis, 2. Inner limit clamping mechanism, 201. Fixing frame, 202. Through port, 203. Clamping frame, 204. Connecting frame, 205. Rotating seat, 206. First sliding ring; 3. Buffer support mechanism, 301. Mounting frame, 302. Limiting plate, 303. Movable rod, 304. First spring, 305. Second spring, 306. Support base; 4. Drive mechanism, 401. U-shaped frame, 402. Servo motor, 403. Coupling; 5. Pressing mechanism, 501. Second sliding ring, 502. Fixed seat, 503. Connecting rod, 504. Pressure plate; 6. Inner support limiting mechanism, 601. Arc-shaped inner support frame, 602. Limiting frame, 603. Limiting hole; 7. Portable mechanism, 701. Handle, 702. Limiting piece, 703. Anti-slip sleeve; 8. Magnetic block, 9. Anti-slip texture. Detailed Implementation

[0018] The following will provide a detailed description by way of embodiments. However, the description of the embodiments is not intended to limit the present utility model. Any formal but not substantive equivalent transformations made based on the present utility model concept should be considered within the scope of the present utility model's technical solution.

[0019] In the following description, all directional or orientational concepts involving up, down, left, right, front, and back refer to the current situation. Figure 1 The description pertains to the location and state of the object, and therefore should not be construed as a specific limitation on the technical solution provided by this utility model.

[0020] Please see Figures 1-6 This utility model relates to a tapered roller bearing unloading fixture, comprising: a main body mechanism 1, The inner clamping mechanism 2 is located on the outside of the main body mechanism 1 and is used to clamp the bearing and continuously provide preload force. Three buffer support mechanisms 3 are located on the outside of the main body mechanism 1 to buffer and maintain the overall stability of the clamp; The drive mechanism 4 is located on top of the main body mechanism 1; The pressing mechanism 5 is located on the outside of the main body mechanism 1; The inner support limiting mechanism 6 is located inside the main body mechanism 1; The portable mechanism 7 is located on top of the main body mechanism 1; The inner clamping mechanism 2 includes three fixed frames 201, all of which are installed on the outside of the main body mechanism 1. Each fixed frame 201 has a through opening 202 at its top. A clamping frame 203 is rotatably connected to the inside of each through opening 202. A connecting frame 204 is rotatably connected to one side of each clamping frame 203. A rotating seat 205 is rotatably connected to one end of each connecting frame 204. A first sliding ring 206 is installed on the side of the three rotating seats 205 that are close to each other.

[0021] In this embodiment, by setting the inner limit clamping mechanism 2, a connection relationship is established between the clamp screw and the clamping claw component, thereby enabling the clamp to be applied to the removal of bearings of various sizes, while ensuring stability during removal, effectively preventing the clamp from loosening during use, thus optimizing the versatility of the clamp, improving its stability, having significant market competitiveness, and thus gaining significant promotional significance.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the buffer support mechanism 3 includes a mounting frame 301. A limiting plate 302 is provided on the top of the mounting frame 301. Two movable rods 303 are connected to the bottom of the limiting plate 302. A first spring 304 is sleeved on the outer side of each of the two movable rods 303. One end of each of the two movable rods 303 movably passes through the mounting frame 301 and is connected to a support base 306. A second spring 305 is sleeved on the outer side of each of the two movable rods 303.

[0023] Furthermore, the inner support limiting mechanism 6 includes three arc-shaped inner support frames 601. All three arc-shaped inner support frames 601 are installed between the fixed plate 101 and the chassis 103. Two limiting frames 602 are installed on the outer side of each arc-shaped inner support frame 601. Two limiting holes 603 are opened through the top of each limiting frame 602. Each movable rod 303 is set in a corresponding limiting hole 603.

[0024] In this embodiment, the installation frame 301 and the limiting frame 602 limit the movable rod 303 by setting the buffer support mechanism 3 and the inner support limiting mechanism 6, and the first spring 304 and the second spring 305 buffer the upper part and the lower part respectively to reduce the shaking amplitude of the clamp and ensure the stability of the clamp during use.

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the main body mechanism 1 includes a fixing plate 101, a lead screw 102 is installed at the bottom of the fixing plate 101, a base plate 103 is installed at the bottom of the lead screw 102, and a first sliding ring 206 is installed on the outside of the lead screw 102.

[0026] Furthermore, the drive mechanism 4 includes a U-shaped frame 401, which is mounted on the top of the fixed plate 101. A servo motor 402 is mounted on the top of the U-shaped frame 401. The output end of the servo motor 402 passes through the U-shaped frame 401 and is connected to a coupling 403. One end of the lead screw 102 passes through the fixed plate 101 and is connected to the coupling 403.

[0027] Furthermore, the pressing mechanism 5 includes a second sliding ring 501, which is installed on the outside of the lead screw 102. Three fixed seats 502 are installed on the outside of the second sliding ring 501. Each fixed seat 502 has a connecting rod 503 connected to its bottom. One end of each of the three connecting rods 503 passes through the chassis 103 and is connected to the pressure plate 504.

[0028] In this embodiment, through the configuration of the main body mechanism 1, the drive mechanism 4 and the pressing mechanism 5, the servo motor 402 drives the lead screw 102 to rotate, causing the second sliding ring 501 to slide on the lead screw 102, which in turn drives the fixed seat 502 to push the connecting rod 503 to press the shaft, thereby realizing the rapid unloading of the bearing, reducing the difficulty of operating the fixture, improving work efficiency, and saving labor and time costs.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, the portable mechanism 7 includes a handle 701, both ends of which are movably inserted through the fixing plate 101 and connected to the limiting plate 702. The outer side of the handle 701 is covered with an anti-slip sleeve 703.

[0030] In this embodiment, the portability of the clamp is improved by the setting of the portable mechanism 7, making it easier to carry and transport. The anti-slip sleeve 703 increases the friction between the handle 701 and the palm of the carrier, effectively preventing the clamp from coming loose during carrying and transportation, thereby improving the stability and reliability of the clamp during carrying and transportation.

[0031] like Figure 1 , Figure 2 and Figure 5 As shown, each support base 306 has magnetic blocks 8 installed at both ends of its top, and each support base 306 has anti-slip texture 9 on its bottom.

[0032] In this embodiment, the magnetic block 8 and the anti-slip texture 9 enable the clamp to adhere to the surface of the metal structure, or increase the friction with the contacting object through the anti-slip texture 9, ensuring the stability of the clamp during use and preventing the clamp from shaking.

[0033] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

[0034] In summary, the technical solution provided by this utility model makes up for the shortcomings of the prior art, successfully completes the utility model task, and faithfully realizes the technical effects described by the applicant in the above technical effect column.

Claims

1. A tapered roller bearing unloading fixture, characterized in that, include: Main body (1) An inner clamping mechanism (2) is provided on the outside of the main body mechanism (1) for clamping the bearing and continuously providing preload force; Three buffer support mechanisms (3) are provided on the outside of the main body mechanism (1) to buffer and maintain the overall stability of the clamp; A drive mechanism (4) is disposed on top of the main body mechanism (1); The pressing mechanism (5) is located on the outside of the main body mechanism (1); An inner support limiting mechanism (6) is provided on the inner side of the main body mechanism (1); A portable mechanism (7) is disposed on top of the main body mechanism (1); The inner clamping mechanism (2) includes three fixed frames (201). The three fixed frames (201) are all installed on the outside of the main body mechanism (1). Each fixed frame (201) has a through opening (202) at the top. Each through opening (202) has a clamping frame (203) rotatably connected to its inner side. Each clamping frame (203) has a connecting frame (204) rotatably connected to one side. Each connecting frame (204) has a rotating seat (205) rotatably connected to one end. A first sliding ring (206) is installed on the side of the three rotating seats (205) that are close to each other.

2. The tapered roller bearing unloading fixture according to claim 1, characterized in that: The buffer support mechanism (3) includes a mounting frame (301), a limiting plate (302) is provided on the top of the mounting frame (301), two movable rods (303) are connected to the bottom of the limiting plate (302), a first spring (304) is sleeved on the outer side of each of the two movable rods (303), one end of each of the two movable rods (303) is movably passed through the mounting frame (301) and connected to a support base (306), and a second spring (305) is sleeved on the outer side of each of the two movable rods (303).

3. The tapered roller bearing unloading fixture according to claim 2, characterized in that: The main body (1) includes a fixing plate (101), a lead screw (102) is installed at the bottom of the fixing plate (101), a base plate (103) is installed at the bottom of the lead screw (102), and the first sliding ring (206) is installed on the outside of the lead screw (102).

4. The tapered roller bearing unloading fixture according to claim 3, characterized in that: The drive mechanism (4) includes a U-shaped frame (401), which is mounted on the top of the fixed plate (101). A servo motor (402) is mounted on the top of the U-shaped frame (401). The output end of the servo motor (402) passes through the U-shaped frame (401) and is connected to a coupling (403). One end of the lead screw (102) passes through the fixed plate (101) and is connected to the coupling (403).

5. The tapered roller bearing unloading fixture according to claim 3, characterized in that: The pressing mechanism (5) includes a second sliding ring (501), which is installed on the outside of the lead screw (102). Three fixed seats (502) are installed on the outside of the second sliding ring (501). A connecting rod (503) is connected to the bottom of each fixed seat (502). One end of each of the three connecting rods (503) is movably inserted through the chassis (103) and connected to the pressure plate (504).

6. The tapered roller bearing unloading fixture according to claim 3, characterized in that: The inner support limiting mechanism (6) includes three arc-shaped inner support frames (601). The three arc-shaped inner support frames (601) are all installed between the fixed plate (101) and the chassis (103). Two limiting frames (602) are installed on the outer side of each arc-shaped inner support frame (601). Two limiting holes (603) are opened through the top of each limiting frame (602). Each movable rod (303) is set in a corresponding limiting hole (603).

7. The tapered roller bearing unloading fixture according to claim 3, characterized in that: The portable mechanism (7) includes a handle (701), both ends of which are movably inserted through a fixing piece (101) and connected to a limiting piece (702). An anti-slip sleeve (703) is fitted on the outside of the handle (701).

8. The tapered roller bearing unloading fixture according to claim 2, characterized in that: Each of the support bases (306) has magnetic blocks (8) installed at both ends of its top, and each of the support bases (306) has anti-slip texture (9) on its bottom.

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