CN112476335A

CN112476335A - Dismounting device for outer ring roller of inner-ring-free short cylindrical bearing

Info

Publication number: CN112476335A
Application number: CN202011428601.4A
Authority: CN
Inventors: 孙福利; 王畔畔; 曲洪兵; 王锐; 姜洋; 刘畅; 孙铁明; 杨冠男; 胡静; 汤志伟; 黄春林; 赵德鲁; 王鹏
Original assignee: Harbin Bearing Group Co ltd
Current assignee: Harbin Bearing Group Co ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-03-12

Abstract

A device for disassembling the outer ring roller of a short cylindrical roller bearing without an inner ring, the present invention relates to a device for disassembling a roller, the present invention is to solve the problem of disassembling the roller of a short cylindrical roller bearing without an inner ring by using a traditional method. It is difficult, and will cause scratches on the surface of the rollers and damage to the cage. The present invention includes a disassembly handle, a clamping fixed block, a clamping movable block and a jacking assembly. The disassembly handle is a U-shaped block in longitudinal section. The tightening and fixing block and the clamping movable block are symmetrically arranged on the inner wall of the dismantling handle, and the pressing component is connected to the clamping movable block after passing through the outer wall of the dismantling handle. The disassembly device of the invention is used to disassemble the rollers of the outer ring of the short cylindrical bearing without inner rings, which avoids scratches on the bearing raceways and rollers, and card bumps when the rollers are disassembled; and reduces the accuracy of the bearing due to the disassembly method. the possibility of damage, and can be easily disassembled for bearings that cannot be disassembled due to the small contact area of the rollers.

Description

Dismounting device for outer ring roller of inner-ring-free short cylindrical bearing

Technical Field

The invention relates to a bearing roller dismounting device, in particular to an inner ring-free short cylindrical bearing outer ring roller dismounting device, and relates to the technical field of bearings.

Background

After the short cylindrical roller bearing without the inner ring is assembled, the bearing sometimes needs to be disassembled, and the selection of the disassembling method and the reasonability of the disassembly determine whether the disassembly is successful. The roller and the retainer can be directly damaged due to poor disassembly, or the ferrule can be scratched, or even the roller, the retainer and the ferrule can be damaged, so that waste products can be directly generated. Because the roller dismounting effect is not ideal all the time, the roller and the outer ring are damaged when the roller is difficult to dismount, waste products are generated, and the problem of product quality cannot be avoided even if the roller is dismounted carefully. The reason is that after the roller and the outer ring are assembled, when the roller and the outer ring are disassembled, the contact area of the roller outside is too small, the roller cannot be used, only a screwdriver is inserted into the connecting part of the roller retainer for disassembly, the surface of the roller and the damage of the retainer cannot be avoided, and meanwhile, the roller can scratch the outer ring raceway.

Disclosure of Invention

The invention provides a dismounting device for an outer ring roller of a short cylindrical roller bearing without an inner ring, aiming at solving the problems that the roller of the short cylindrical roller bearing without the inner ring is difficult to dismount by adopting the traditional method, and the surface of the roller is scratched and a retainer is damaged.

The technical scheme adopted by the invention for solving the problems is as follows:

the utility model provides a no inner circle short cylindrical bearing outer lane roller dismounting device is including dismantling the handle, pressing from both sides tight fixed block, pressing from both sides tight movable block and the tight subassembly in top, dismantles the handle and is the block that the longitudinal section is the U-shaped, presss from both sides tight fixed block and presss from both sides tight movable block symmetry setting on the inner wall of dismantling the handle, the tight subassembly in top passes after dismantling the outer wall of handle and is connected with pressing from both sides tight movable block.

Further, press from both sides tight movable block and include connecting block and press from both sides tight piece, connecting block and press from both sides tight piece and link into an integrated entity from left to right, the left end portion of connecting block is equipped with first U type groove.

Furthermore, the tightening component comprises a screw rod, an elastic adjusting rod and two fixing screws, the front end of the screw rod penetrates through the outer wall of the disassembling handle and then is inserted into the first U-shaped groove of the clamping movable block, and the elastic adjusting rod is vertically inserted into the rear end of the screw rod; and one fixing screw penetrates through the upper surface of the connecting block and then is connected with the screw rod, and the other fixing screw penetrates through the lower surface of the connecting block and then is connected with the screw rod.

Further, the front end of the screw is provided with a semi-spherical hole.

Furthermore, the upper part of the left side wall of the disassembly handle is provided with a thread through hole matched with the screw rod; the upper part of the right side wall of the disassembly handle is provided with a through hole connected with the clamping fixing block.

Further, the dismounting device for the outer ring roller of the short cylindrical bearing without the inner ring further comprises a circular ball body, and the circular ball body is located between the first U-shaped groove and the screw rod.

The invention has the beneficial effects that:

the dismounting device is adopted to dismount the outer ring roller of the short cylindrical bearing without the inner ring, so that the bearing roller path and the roller are prevented from being scratched and stuck when the roller is dismounted; the possibility of damage to the precision of the bearing due to the disassembly mode is reduced, and meanwhile, the bearing which cannot be disassembled due to the fact that the contact area of the roller is too small can be disassembled easily.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of a clamping movable block.

Detailed Description

The first embodiment is as follows: the embodiment is described with reference to fig. 1, the dismounting device for the outer ring roller of the short cylindrical bearing without the inner ring in the embodiment comprises a dismounting handle 1, a clamping fixed block 2, a clamping movable block 3 and a jacking assembly,

dismantle handle 1 is that the longitudinal section is the block of U-shaped, presss from both sides tight fixed block 2 and presss from both sides tight movable block 3 symmetry setting on the inner wall of dismantling handle 1, the tight subassembly in top passes behind the outer wall of dismantling handle 1 and presss from both sides tight movable block 3 and be connected.

The bearing 4 is positioned in a U-shaped groove 1-1 of the disassembly handle 1, and the clamping fixed block 2 and the clamping movable block 3 are matched with a roller 4-1 of the clamping bearing 4. By utilizing a mechanical principle, the clamping movable block 3 is tightly pushed to one side of the convex part of the roller 4-1 by utilizing the pushing component, the convex part of the roller is clamped by utilizing the clamping fixed block 2 and the clamping movable block 3, the clamping surface adopts a surface contact mode, the contact area is increased, the friction force is increased, and the clamping stability is improved.

The second embodiment is as follows: the embodiment is described with reference to fig. 2, the clamping movable block 3 of the embodiment includes a connecting block 3-1 and a clamping block 3-2, the connecting block 3-1 and the clamping block 3-2 are connected into a whole from left to right, and a first U-shaped groove 3-1-1 is formed at the left end of the connecting block 3-1.

Other components and connections are the same as those in the first embodiment.

The third concrete implementation mode: the embodiment is described with reference to fig. 1, the tightening assembly of the embodiment includes a screw rod 5, a slack adjuster rod 6, and two fixing screws 7, the front end of the screw rod 5 passes through the outer wall of the detaching handle 1 and then is inserted into a first U-shaped groove 3-1-1 of the clamping movable block 3, and the slack adjuster rod 6 is vertically inserted into the rear end of the screw rod 5; one fixing screw 7 penetrates through the upper surface of the connecting block 3-1 and then is connected with the screw rod 5, and the other fixing screw 7 penetrates through the lower surface of the connecting block 3-1 and then is connected with the screw rod 5.

Other components are connected in the same manner as in the second embodiment.

The fourth concrete implementation mode: the present embodiment will be described with reference to fig. 1, and the screw 5 of the present embodiment is provided with a hemispherical hole at the tip thereof.

Other components and connection relationships are the same as those in the first, second or third embodiment.

The fifth concrete implementation mode: the present embodiment is described with reference to fig. 1, and the upper portion of the left side wall of the removal handle 1 of the present embodiment is provided with a screw passing hole which is engaged with the screw 5; the upper part of the right side wall of the disassembly handle 1 is provided with a through hole connected with the clamping fixed block 2.

Other components and connections are the same as those of the first, second, third or fourth embodiments.

The sixth specific implementation mode: the embodiment is described with reference to fig. 1, and the outer ring roller dismounting device for the short cylindrical bearing without the inner ring further comprises a circular ball 8, wherein the circular ball 8 is located between the first U-shaped groove 3-1-1 and the screw 5.

The round ball body 8 is used for aligning the central lines of the screw rod 5 and the clamping movable block 3, and the hemispherical hole at the front end of the screw rod 5 is sleeved on the round ball body 8 to prevent the stress from being eccentric.

Other components and connection relationships are the same as those in the first, second, third, fourth or fifth embodiment.

The working principle is as follows:

the screw rod 5 drives the clamping movable block 3 to move by rotating the tightness adjusting rod 6, so that the clamping movable block 3 is tightly propped against the convex part of the bearing roller 4-1, the convex part of the bearing roller 4-1 is clamped by matching the clamping movable block 3 with the clamping fixed block 2, and the roller is taken out by adopting the radial pulling disassembling handle 1 to disassemble the bearing.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A device for disassembling the outer ring roller of a short cylindrical bearing without an inner ring, characterized in that: the device for disassembling an outer ring roller of a short cylindrical bearing without an inner ring comprises a disassembly handle (1), a clamping and fixing block (2). ), clamping movable block (3) and jacking assembly,

The dismantling handle (1) is a block with a U-shaped longitudinal section, the clamping fixed block (2) and the clamping movable block (3) are symmetrically arranged on the inner wall of the dismantling handle (1), and the top-tightening assembly passes through the dismantling handle (1). The outer wall of the handle (1) is connected with the clamping movable block (3).

2. The device for disassembling the outer ring rollers of a short cylindrical bearing without an inner ring according to claim 1, wherein the clamping movable block (3) comprises a connecting block (3-1) and a clamping block ( 3-2), the connecting block (3-1) and the clamping block (3-2) are connected together from left to right, and the left end of the connecting block (3-1) is provided with a first U-shaped groove (3-1). -1).

3. A device for disassembling the outer ring roller of a short cylindrical bearing without an inner ring according to claim 1, characterized in that: the jacking assembly comprises a screw rod (5), a tightness adjusting rod (6), and two fixing screws (7), the front end of the screw (5) is inserted into the first U-shaped groove (3-1-1) of the clamping movable block (3) after passing through the outer wall of the dismantling handle (1), and the tightness adjustment rod (6) ) is vertically inserted at the rear end of the screw rod (5); a fixing screw (7) passes through the upper surface of the connecting block (3-1) and is connected to the screw rod (5), and a fixing screw (7) passes through the connecting block The lower surface of (3-1) is then connected to the screw (5).

4 . The device for disassembling the outer ring rollers of a short cylindrical bearing without an inner ring according to claim 3 , characterized in that: the front end of the screw rod ( 5 ) is provided with a hemispherical hole. 5 .

5. A device for disassembling the outer ring roller of a short cylindrical bearing without an inner ring according to claim 1, characterized in that: the upper part of the left side wall of the disassembly handle (1) is provided with a threaded through hole that cooperates with the screw rod (5). ; The upper part of the right side wall of the dismantling handle (1) is provided with a through hole connected with the clamping and fixing block (2).

6. The device for disassembling the outer ring rollers of a short cylindrical bearing without an inner ring according to claim 1, wherein the device for disassembling the rollers of the outer ring of a short cylindrical bearing without an inner ring further comprises a circular sphere ( 8), the round sphere (8) is located between the first U-shaped groove (3-1-1) and the screw (5).