Tool for disassembling railway double-row tapered roller bearing

Abstract

The tool comprises a cover plate and a bottom plate, a connecting piece used for changing the distance between the cover plate and the bottom plate is arranged between the cover plate and the bottom plate, and the cover plate comprises a connecting part and an abutting part used for abutting against the end face of the inner wall of the tapered roller bearing. A connecting hole is formed in the cover plate connecting part, the bottom plate comprises a matching part and an embedding part used for being installed between double rows of rollers, a matching hole is formed in the matching part of the bottom plate, and the connecting piece penetrates through the connecting hole and then is matched with the matching hole. And the dismounting is more convenient and faster, the dismounting efficiency is higher, the bearing structure is prevented from being damaged, and the good using effect is achieved.

Description

Technical Field

[0001] The utility model relates to a tool for disassembling a railway double-row tapered roller bearing. Background Art

[0002] Railway double-row tapered roller bearings are large bearings. As the service life increases, the bearings need long-term maintenance and replacement. Due to their large size, railway double-row tapered roller bearings are difficult to disassemble and maintain. Currently, they are mainly disassembled manually by hammering with a memory screwdriver and prying with it. This can easily cause the bearing to deform and distort the bearing size data. When the bearing failure problem needs to be analyzed, it is necessary to avoid affecting the analysis results due to disassembly. Disassembly methods such as knocking, prying, etc. will deform the bearing at the least and damage it at the most. It is also time-consuming, labor-intensive and unsafe. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a tool for disassembling a railway double-row tapered roller bearing, which makes disassembly more convenient and more efficient, avoids damage to the bearing structure, and has a good use effect.

[0004] To achieve the above-mentioned purpose, the utility model provides a tool for disassembling a railway double-row tapered roller bearing, comprising a cover plate and a base plate, a connecting piece for changing the spacing between the cover plate and the base plate is arranged between the cover plate and the base plate, the cover plate comprises a connecting portion and a resisting portion for resisting against the inner wall end face of the tapered roller bearing, a connecting hole is arranged on the cover plate connecting portion, the base plate comprises a matching portion and an embedded portion for being installed between the double-row rollers, a matching hole is arranged on the matching portion of the base plate, and the connecting piece is matched with the matching hole after passing through the connecting hole.

[0005] The beneficial effect of such an arrangement is as follows: in such an arrangement, by abutting the cover plate against the outer end face of the inner ring, and then embedding the bottom plate between the two inner rings of the double-row bearing, the distance between the cover plate and the bottom plate is changed by operating the connecting piece, and the connecting piece here can be set as a screw or a cylinder or an oil cylinder, so that the distance between the bottom plate and the cover plate is increased, thereby pushing the inner ring out, thereby realizing the plug-in operation of the bearing. This structure is simple, easy to implement, and has a good use effect.

[0006] As a further configuration of the utility model, the connecting member is configured as a bolt rod, and the bolt rod is threadedly matched with the matching hole.

[0007] The beneficial effects of such arrangement are: such arrangement has a simple structure, is easy to implement, is also very convenient to operate, and has a good use effect.

[0008] As a further configuration of the utility model, a limit pressure head is provided on the bolt rod, and the limit pressure head abuts against the cover plate connecting portion.

[0009] The beneficial effect of such arrangement is that such arrangement further improves the stability of the structure and has a good use effect.

[0010] As a further configuration of the utility model, the connecting piece is configured as a push-pull cylinder, the push-pull cylinder base is configured in the connecting hole, the push-pull cylinder output end is tightly matched with the matching hole, the base plate matching portion and the embedded portion are separately configured, the embedded portion is provided with an installation groove at a position corresponding to the matching portion, the matching portion is rotatably arranged in the installation groove through a bearing, and a roller is arranged at an edge position of the embedded portion.

[0011] The beneficial effect of such arrangement is that, when force is applied for disassembly, the embedded part can be rotated so that the force acts in all directions of the inner ring circumference, thereby making the force on the inner ring more balanced and avoiding tilting of the inner ring and affecting the disassembly effect.

[0012] As a further configuration of the utility model, a roller groove is provided on the embedded portion, a connecting frame is provided in the roller groove, a guide groove is provided on the connecting frame along the height direction, a guide rod is provided in the roller groove, the guide rod and the guide groove are slidably matched, the roller is connected to the connecting frame through a universal joint, a positioning column is provided in the roller groove, a buffer spring is sleeved on the positioning column, and the buffer spring is abutted between the connecting frame and the roller groove.

[0013] The beneficial effects of such arrangement are as follows: such arrangement makes the structure more stable, facilitates the operation of the base plate rotation, makes the rotation action smoother, makes the force applied in all directions more balanced, facilitates the operation of the inner ring disengagement, and has a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0015] Figure 2 This is a schematic structural diagram of a second embodiment of the utility model;

[0016] Figure 3 It is a cross-sectional view of the second embodiment of the utility model. DETAILED DESCRIPTION

[0017] The first embodiment of the tooling for disassembling a railway double-row tapered roller bearing according to the utility model is as follows: Figure 1As shown: it includes a cover plate 1 and a base plate 2, a connecting piece for changing the distance between the cover plate 1 and the base plate 2 is arranged between the cover plate 1 and the base plate 2, the cover plate 1 includes a connecting portion and a resisting portion for resisting on the inner wall end face of the tapered roller bearing, a connecting hole is arranged on the connecting portion of the cover plate 1, the base plate 2 includes a matching portion 21 and an embedding portion for being installed between double-row rollers, a matching hole is arranged on the matching portion 21 of the base plate 2, and the connecting piece is matched with the matching hole after passing through the connecting hole.

[0018] As a further configuration of this embodiment, the connecting member is configured as a bolt rod 3, and the bolt rod 3 is threadedly matched with the matching hole.

[0019] As a further configuration of this embodiment, a limit pressure head 31 is provided on the bolt rod 3 , and the limit pressure head 31 abuts against the connecting portion of the cover plate 1 .

[0020] The second embodiment of the tooling for disassembling a railway double-row tapered roller bearing according to the utility model is as follows: Figure 2 and Figure 3 As shown: it includes a cover plate 1 and a base plate 2, a connecting piece for changing the distance between the cover plate 1 and the base plate 2 is arranged between the cover plate 1 and the base plate 2, the cover plate 1 includes a connecting portion and a resisting portion for resisting on the inner wall end face of the tapered roller bearing, a connecting hole is arranged on the connecting portion of the cover plate 1, the base plate 2 includes a matching portion 21 and an embedding portion for being installed between double-row rollers, a matching hole is arranged on the matching portion 21 of the base plate 2, and the connecting piece is matched with the matching hole after passing through the connecting hole.

[0021] As a further configuration of this embodiment, the connecting member is configured as a push-up cylinder 4, the base of the push-up cylinder 4 is configured in the connecting hole, the output end of the push-up cylinder 4 is tightly matched with the matching hole, the matching portion 21 of the bottom plate 2 is separately configured with the embedded part, and the embedded part is provided with a mounting groove at a position corresponding to the matching portion 21, the matching portion 21 is rotatably arranged in the mounting groove through a bearing, and a roller 5 is arranged at the edge of the embedded part.

[0022] As a further configuration of the present embodiment, a roller groove 22 is provided on the embedded portion, a connecting frame 6 is provided in the roller groove 22, a guide groove 62 is provided on the connecting frame 6 along the height direction, a guide rod 23 is provided in the roller groove 22, the guide rod 23 is slidably matched with the guide groove 62, the roller 5 is connected to the connecting frame 6 through a universal joint, a positioning column is provided in the roller groove, a buffer spring 62 is sleeved on the positioning column, and the buffer spring 62 is abutted between the connecting frame 6 and the roller groove 22.

[0023] The above example is only one preferred specific example of the present invention. The common changes and substitutions made by those skilled in the art within the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A tool for disassembling railway double-row tapered roller bearings, characterized in that: It includes a cover plate and a base plate, a connecting piece for changing the distance between the cover plate and the base plate is arranged between the cover plate and the base plate, the cover plate includes a connecting portion and an abutting portion for abutting against the inner wall end face of the tapered roller bearing, a connecting hole is arranged on the cover plate connecting portion, the base plate includes a matching portion and an embedding portion for being installed between double-row rollers, a matching hole is arranged on the matching portion of the base plate, and the connecting piece passes through the connecting hole and matches with the matching hole.

2. The tool for disassembling a railway double-row tapered roller bearing according to claim 1, characterized in that: The connecting piece is configured as a bolt rod, and the bolt rod is threadedly matched with the matching hole.

3. The tool for disassembling a railway double-row tapered roller bearing according to claim 2, characterized in that: A limit pressure head is arranged on the bolt rod, and the limit pressure head abuts against the cover plate connecting part.

4. The tool for disassembling a railway double-row tapered roller bearing according to claim 1, characterized in that: The connecting piece is configured as a push-up cylinder, the push-up cylinder base is arranged in the connecting hole, the push-up cylinder output end is tightly matched with the matching hole, the bottom plate matching part and the embedded part are separately arranged, the embedded part is provided with a mounting groove at a position corresponding to the matching part, the matching part is rotatably arranged in the mounting groove through a bearing, and a roller is arranged at the edge of the embedded part.

5. The tool for disassembling a railway double-row tapered roller bearing according to claim 4, characterized in that: The embedded portion is provided with a roller groove, a connecting frame is provided in the roller groove, a guide groove is provided on the connecting frame along the height direction, a guide rod is provided in the roller groove, the guide rod and the guide groove are slidably matched, the roller is connected to the connecting frame through a universal joint, a positioning column is provided in the roller groove, a buffer spring is sleeved on the positioning column, and the buffer spring is in contact between the connecting frame and the roller groove.

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