Wheel hub bearing dismounting puller

Abstract

The utility model relates to a puller for disassembling a hub bearing, which is characterized in that a shaft body of a fixed shaft assembly is provided with a puller assembly for disassembling the hub bearing, and the top end of the fixed shaft assembly is provided with a rotating assembly for driving the fixed shaft assembly to move up and down; a telescopic assembly used for stretching out and drawing back is arranged in a column body of the fixing column, and a pressing assembly used for pressing a hub is arranged on a plate body of the telescopic assembly. The telescopic plate is close to the fixed shaft, and then the limiting plate is fixed to the fixed column through a bolt; then a rotating disc drives a pressing block at the bottom end of a screw rod to press and fix the hub, then four disassembling pullers are controlled to be placed in a gap between a hub bearing and the hub, then an inserting rod is rotated to drive a rotating cylinder to move upwards, at the moment, under the elastic effect of compressed elasticity, a lifting ring can move upwards along a fixed shaft, and the hub bearing is disassembled. And the four dismounting pullers at the bottom ends of the four connecting plates can be driven to slowly move upwards, so that the hub bearing on the hub can be dismounted.

Description

Technical Field

[0001] This utility model relates to the field of bearing disassembly puller technology, and in particular to a wheel hub bearing disassembly puller. Background Technology

[0002] Bearings are components that fix and reduce the coefficient of friction of loads during mechanical transmission. In the press-fitting process of the main hub bearing of a wet high-pressure dual-clutch transmission, mechanical structural failures and operator errors are unavoidable, leading to bearings not meeting depth standards or being installed backwards. Therefore, a disassembly puller is needed to disassemble the hub bearing. For example, the tire crane hub bearing disassembly device shown in Chinese patent application CN201922159196.X includes a puller body with an assembly part at its center, a connecting arm circumferentially arranged along the puller body, and a connecting part on the connecting arm; a load-bearing component fixedly assembled within the assembly part; a locking component that engages with the connecting part and mounting holes on the bearing housing to lock and fix the puller and bearing housing; and a lifting device that applies force to the load-bearing component to separate the bearing housing and the hub shaft.

[0003] However, when using a puller to disassemble the bearing of the main wheel hub, the lack of a device to clamp the main wheel hub can easily cause the main wheel hub to shake when the puller pulls the bearing out of the main wheel hub, thus affecting the efficiency of the puller in disassembling the bearing of the main wheel hub. Utility Model Content

[0004] To address the problem mentioned in the background art, where the lack of a device to clamp the inner ring of the bearing leads to bearing wobble during the puller's removal of the bearing, thus affecting the puller's efficiency in disassembling the bearing from the main hub, this utility model provides the following technical solution:

[0005] A wheel hub bearing removal puller includes a fixed support and a wheel hub bearing. A support device for placing the wheel hub bearing is fixedly installed at the top of the fixed support. A removal puller device for removing the wheel hub bearing placed on the support device is provided inside the support device. A fixing device for pressing the wheel hub is fixedly installed at the top of the support device.

[0006] The disassembly puller includes a fixed shaft assembly that passes through the support device. The shaft of the fixed shaft assembly is provided with a puller assembly for disassembling the wheel hub bearing. The top of the fixed shaft assembly is provided with a rotating assembly for driving the fixed shaft assembly to move up and down.

[0007] The fixing device includes a fixing column fixedly installed at the top of the support device. The column body is provided with a telescopic component for telescopic movement, and the plate of the telescopic component is provided with a clamping component for pressing the wheel hub.

[0008] Furthermore, the fixed shaft assembly includes a fixed shaft that passes through the support device. The fixed shaft has a threaded first thread for threaded connection with the rotating component. The fixed shaft also has a threaded second thread for fixing the fixed shaft to the fixed support, and the threaded second thread is located directly below the threaded first thread. The threaded second thread has two nuts for threaded connection to fix the fixed shaft to the fixed support.

[0009] Furthermore, the rotating assembly includes a rotating cylinder that is threadedly connected to a threaded connection, and the cylinder body of the rotating cylinder is provided with a rod for driving the rotating cylinder to rotate.

[0010] Furthermore, the puller assembly includes a lifting ring fitted on the thread for moving up and down, and a spring at the bottom end of the lifting ring for controlling the up and down movement of the lifting ring. A fixing ring for limiting the spring is fixedly installed on the rod of the fixed shaft.

[0011] Furthermore, the lifting ring is movably connected to a connecting plate, and there are four connecting plates. The bottom end of the connecting plate is movably connected to a disassembly puller for disassembling the wheel hub bearing. The fixed ring is fixedly installed with a fixing rod for movably connecting with the disassembly puller.

[0012] Furthermore, the telescopic assembly includes a telescopic plate that extends through the fixed post for telescopic movement. A limiting plate is fixedly installed at the end of the telescopic plate away from the wheel hub bearing to prevent the telescopic plate from moving out of the fixed post. Bolts for locking the limiting plate are provided on the plate body.

[0013] Furthermore, the clamping assembly includes a screw threadedly connected to the telescopic plate for vertical movement, a rotating disk for driving the screw to rotate is fixedly installed at the top end of the screw, and a clamping block for clamping the wheel hub is movably connected to the bottom end of the screw.

[0014] Furthermore, the support device includes three support legs fixedly installed on the top of the fixed support, and the top of the three support legs is fixedly installed with a support seat for placing the wheel hub, and the bottom of the fixed support is fixedly installed with a cylinder for fixing the shaft through.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] By setting up a support device, a disassembly puller device, and a fixing device, when it is necessary to disassemble the wheel hub bearing, the telescopic plate moves closer to the fixed shaft, and then the limiting plate is fixed to the fixed column with two bolts to lock the telescopic plate. Then, the rotating disc drives the clamping block at the bottom of the screw to press and fix the wheel hub. Then, control the four disassembly pullers to be placed in the gap between the wheel hub bearing and the wheel hub. Then, the rotating rod drives the rotating cylinder to move upward. At this time, the compressed elasticity, under the action of elasticity, can move the lifting ring upward along the fixed shaft, which can drive the four disassembly pullers at the bottom of the four connecting plates to slowly move upward, so that the wheel hub bearing on the wheel hub can be disassembled. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a front view of the present utility model;

[0019] Figure 3 This is a schematic diagram of the support device structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the disassembly puller device of this utility model;

[0021] Figure 5 This is a schematic diagram of the fixing device structure of this utility model.

[0022] The following is a list of component names represented by the various reference numerals in the attached figures:

[0023] 100 - Fixed support;

[0024] 200-Support device, 210-Support leg, 220-Support base, 230-Cylinder;

[0025] 300-wheel hub bearing;

[0026] 400-Removal puller assembly, 410-Rotating component, 411-Rotating cylinder, 412-Insertion rod, 420-Fixed shaft assembly, 421-Fixed shaft, 422-Thread 1, 423-Thread 2, 424-Nut, 430-Puller assembly, 431-Lifting ring, 432-Connecting plate, 433-Removal puller, 434-Fixed rod, 435-Fixed ring, 436-Spring;

[0027] 500-Fixing device, 510-Fixing column, 520-Telescopic assembly, 521-Telescopic plate, 522-Restriction plate, 523-Bolt, 530-Pressure assembly, 531-Rotating disk, 532-Screw, 533-Pressure block. Detailed Implementation

[0028] The preferred embodiments of this utility model are described in detail below, and a clear and complete explanation is given in conjunction with the accompanying drawings.

[0029] Please see Figures 1-5 This utility model provides a puller for disassembling wheel hub bearings.

[0030] It includes a fixed support 100 and a wheel hub bearing 300. The top of the fixed support 100 is fixedly installed with a support device 200 for placing the wheel hub bearing 300. The support device 200 is provided with a disassembly puller 400 for disassembling the wheel hub bearing 300 placed on the support device 200. The top of the support device 200 is fixedly installed with a fixing device 500 for pressing the wheel hub.

[0031] The top of the fixed support 100 has four threaded holes for easy installation on the wheel hub, so that the fixed support 100 can be fixed on the wheel hub by passing a large bolt through the four threaded holes.

[0032] The support device 200 includes three support legs 210 fixedly installed on the top of the fixed support 100. The three support legs 210 are arranged in a circumferential array on the top of the fixed support 100. A support seat 220 for placing the wheel hub is fixedly installed on the top of the three support legs 210. The cross-section of the support seat 220 is trapezoidal to facilitate placing the wheel hub on the support seat 200. A cylinder 230 for fixing the shaft 421 through is fixedly installed at the bottom of the fixed support 100.

[0033] The disassembly puller device 400 includes a fixed shaft assembly 420 that passes through the support device 200. The shaft of the fixed shaft assembly 420 is provided with a puller assembly 430 for disassembling the hub bearing 300. The top of the fixed shaft assembly 420 is provided with a rotating assembly 410 for driving the fixed shaft assembly 420 to move up and down.

[0034] The fixed shaft assembly 420 includes a fixed shaft 421 that passes through the support device 200 and the fixed shaft 421 passes through the seat of the fixed support 100. The shaft of the fixed shaft 421 has a thread 422 for threaded connection with the rotating assembly 410. The shaft of the fixed shaft 421 also has a thread 423 for fixing the fixed shaft 421 to the fixed support 100. The thread 423 is located directly below the thread 422. The thread 423 is threaded with nuts 424 for fixing the fixed shaft 421 to the fixed support 100. There are two nuts 424. Thus, when it is necessary to disassemble the hub bearing 300 of the wheel hub, the fixed shaft 421 can pass through the support 220, the cylinder 230 and the fixed support 100, with the thread 423 located between the three. By using the threaded connection between the two nuts 424 and the thread 423 on the fixed shaft 421, the fixed shaft 421 can be fixed to the fixed support 100.

[0035] The rotating assembly 410 includes a rotating cylinder 411 threadedly connected to thread 422. The cylinder body of the rotating cylinder 411 is provided with a plug rod 412 for driving the rotating cylinder 411 to rotate. Thus, when it is necessary to disassemble the hub bearing 300 of the wheel hub, the plug rod 412 can be inserted into the rotating cylinder 411, and the rotating cylinder 411 can be moved upward by rotating the plug rod 412. At this time, the puller assembly 430 can be moved upward, and the hub bearing 300 of the wheel hub can be slowly pulled out for disassembly.

[0036] The puller assembly 430 includes a lifting ring 431 fitted on the thread 422 for up-and-down movement, and the lifting ring 431 is cross-shaped. The bottom end of the lifting ring 431 is provided with a spring 436 for controlling the up-and-down movement of the lifting ring 431, so that the elastic action of the spring 436 can be used to control the up-and-down movement of the lifting ring 431 along the fixed shaft 421. A fixed ring 435 for limiting the spring 436 is fixedly installed on the rod of the fixed shaft 421, and the spring 436 is located between the fixed ring 435 and the rotating cylinder 411.

[0037] The lifting ring 431 has four connecting plates 432 movably connected to its ring body. The bottom end of each connecting plate 432 is movably connected to a disassembly puller 433 for disassembling the wheel hub bearing 300. The fixing ring 435 has a fixing rod 434 fixedly installed on its ring body for movably connecting to the disassembly puller 433. Therefore, when the wheel hub bearing 300 needs to be disassembled, the fixing shaft 421 can pass through the support seat 220, the cylinder 230, and the fixing support 100, with the threaded shaft 423 located between the three. Two nuts 424 are used to connect the threaded shaft 421 to the threaded shaft 421. The threaded connection between 423 allows the fixed shaft 421 to be fixed on the fixed support 100, and the wheel hub is then pressed and fixed by the fixing device 500. Then, the four disassembly pullers 433 are placed into the gap between the wheel hub bearing 300 and the wheel hub. The rotating cylinder 411 is moved upward by the rotating rod 412. At this time, the compressed elastic 436 can move the lifting ring 431 upward along the fixed shaft 421 under the elastic action, which can drive the four disassembly pullers 433 at the bottom of the four connecting plates 432 to move upward slowly, so that the wheel hub bearing 300 on the wheel hub can be disassembled.

[0038] The fixing device 500 includes a fixing column 510 fixedly installed on the top of the support device 200. The fixing column 510 has a telescopic component 520 for telescopic movement inside its column body. The telescopic component 520 has a pressing component 530 for pressing the wheel hub on its plate body.

[0039] The telescopic assembly 520 includes a telescopic plate 521 that extends through the fixed post 510 for telescopic movement. By telescopically moving the telescopic plate 521 on the fixed post 510, the control clamping assembly 530 can be moved away from the wheel hub bearing 300 to facilitate the placement of the wheel hub bearing 300 onto the support seat 220. A limiting plate 522 is fixedly installed at the end of the telescopic plate 521 away from the wheel hub bearing 300 to prevent the telescopic plate 521 from moving out of the fixed post 510. The limiting plate 522 has two bolts 523 for locking the limiting plate 522.

[0040] The clamping assembly 530 includes a screw 532 threadedly connected to a telescopic plate 521 for vertical movement. A rotating disk 531 for driving the screw 532 to rotate is fixedly mounted at its top end. A clamping block 533 for clamping the wheel hub is movably connected to the bottom end of the screw 532. The top end of the clamping block 533 is connected to the bottom end of the screw 532 via a bearing, so that the clamping block 533 can be moved closer to the wheel hub and clamped and fixed when the screw 532 rotates. Therefore, when it is necessary to disassemble the wheel hub bearing 300, the telescopic plate 521 moves closer to the fixed shaft 421, and then two bolts 523 are used for clamping. By fixing the limiting plate 522 to the fixing column 510, the telescopic plate 521 can be locked. Then, the rotating disk 531 drives the pressing block 533 at the bottom of the screw 532 to press and fix the wheel hub. Then, control the four disassembly pullers 433 to be placed in the gap between the wheel hub bearing 300 and the wheel hub. Then, by rotating the insert rod 412, the rotating cylinder 411 is moved upward. At this time, the compressed elastic 436, under the action of elasticity, can move the lifting ring 431 upward along the fixed shaft 421, which can drive the four disassembly pullers 433 at the bottom of the four connecting plates 432 to slowly move upward, so that the wheel hub bearing 300 on the wheel hub can be disassembled.

[0041] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this utility model. Furthermore, any non-creative modifications made to this utility model by those skilled in the art without inventive effort are still within the protection scope of this utility model.

Claims

1. A wheel hub bearing puller comprising a fixed support (100) and a wheel hub bearing (300), characterized in that: The top end of the fixed support (100) is fixedly installed with a supporting device (200) for placing the hub bearing (300), the supporting device (200) is provided with a dismounting drawbar device (400) for dismounting the hub bearing (300) placed on the supporting device (200), and the top end of the supporting device (200) is fixedly installed with a fixing device (500) for pressing the hub; The dismounting drawbar device (400) comprises a fixed shaft assembly (420) penetrating through the supporting device (200), the shaft body of the fixed shaft assembly (420) is provided with a drawbar assembly (430) for dismounting the hub bearing (300), and the top end of the fixed shaft assembly (420) is provided with a rotating assembly (410) for driving the fixed shaft assembly (420) to move up and down; The fixing device (500) comprises a fixed column (510) fixedly installed at the top end of the supporting device (200), the column body of the fixed column (510) is provided with a telescopic assembly (520) for telescoping, and the plate body of the telescopic assembly (520) is provided with a pressing assembly (530) for pressing the hub.

2. A wheel hub bearing puller according to claim 1, wherein: The fixed shaft assembly (420) comprises a fixed shaft (421) penetrating through the supporting device (200), the rod body of the fixed shaft (421) is provided with a first thread (422) for threadedly connecting with the rotating assembly (410), the rod body of the fixed shaft (421) is provided with a second thread (423) for fixing the fixed shaft (421) on the fixed support (100), the second thread (423) is located directly below the first thread (422), the second thread (423) is threadedly connected with a nut (424) for fixing the fixed shaft (421) on the fixed support (100), and the nut (424) has two.

3. A wheel hub bearing puller according to claim 1, wherein: The rotating assembly (410) comprises a rotating cylinder (411) threadedly connected with the first thread (422), and the cylinder body of the rotating cylinder (411) is provided with a plug rod (412) for driving the rotating cylinder (411) to rotate.

4. A wheel hub bearing puller according to claim 2, wherein: The drawbar assembly (430) comprises a lifting ring (431) sleeved on the first thread (422) for moving up and down, the bottom end of the lifting ring (431) is provided with a spring (436) for controlling the lifting ring (431) to move up and down, and the rod body of the fixed shaft (421) is fixedly installed with a fixing ring (435) for limiting the spring (436).

5. A wheel hub bearing puller according to claim 4, wherein: The ring body of the lifting ring (431) is movably connected with a connecting plate (432), the connecting plate (432) has four, the bottom end of the connecting plate (432) is movably connected with a dismounting drawbar (433) for dismounting the hub bearing (300), and the ring body of the fixing ring (435) is fixedly installed with a fixing rod (434) movably connected with the dismounting drawbar (433).

6. A wheel hub bearing puller as set forth in claim 1, wherein: The telescopic assembly (520) comprises a telescopic plate (521) for telescoping through the fixed column (510), one end of the telescopic plate (521) away from the hub bearing (300) is fixedly installed with a limiting plate (522) for preventing the telescopic plate (521) from moving out of the fixed column (510), and the plate body of the limiting plate (522) is provided with a bolt (523) for locking the limiting plate (522).

7. A wheel hub bearing puller according to claim 6, wherein: The pressing assembly (530) comprises a screw rod (532) for moving up and down in threaded connection with the telescopic plate (521), the top end of the screw rod (532) is fixedly installed with a rotating disc (531) for driving the screw rod (532) to rotate, and the bottom end of the screw rod (532) is movably connected with a pressing block (533) for pressing the hub.

8. A wheel hub bearing puller according to claim 2 wherein: The supporting device (200) comprises a supporting leg (210) fixedly installed at the top end of the fixed support (100), and there are three supporting legs (210), the top end of the three supporting legs (210) is fixedly installed with a supporting seat (220) for placing the hub, and the bottom end of the fixed support (100) is fixedly installed with a cylinder (230) penetrated by a fixed shaft (421).

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