CN212471333U - Special extracting tool of bearing inner race - Google Patents
Special extracting tool of bearing inner race Download PDFInfo
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- CN212471333U CN212471333U CN202020554191.7U CN202020554191U CN212471333U CN 212471333 U CN212471333 U CN 212471333U CN 202020554191 U CN202020554191 U CN 202020554191U CN 212471333 U CN212471333 U CN 212471333U
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- outer ring
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Abstract
The utility model discloses a special extracting tool of bearing inner race, the center cooperation of first support disc is installed the lead screw, and the quantity of first bracing piece sets up to three, evenly distributed around the lead screw and one end and first support disc fixed connection, and the other end of first bracing piece is provided with first fan-shaped supporting shoe; the central hole of the second supporting disc is provided with an internal thread, the internal thread is in threaded fit connection with the lead screw, three strip-shaped adjusting holes are uniformly distributed on the second supporting disc, the number of the second supporting rods is three, one end of each second supporting rod is provided with a screw rod, the screw rod penetrates through the strip-shaped adjusting holes to be in fit connection with the nut, and the other section of each second supporting rod is provided with a second fan-shaped supporting block; the positioning mechanism is mainly used for adjusting the diameter of the outer circumference of the second fan-shaped supporting block so as to ensure the close fit with the groove in the bearing outer ring and ensure the uniform stress of the bearing outer ring. The utility model discloses simple structure, low in manufacturing cost uses swift convenience, has improved work efficiency.
Description
Technical Field
The utility model relates to a bearing extracting tool technical field especially relates to a special extracting tool of bearing inner race.
Background
In the process of equipment maintenance, the bearing of the equipment is required to be dismounted, maintained or replaced frequently, in the dismounting process, the bearing is often found to be damaged due to serious abrasion, the inner ring and the outer ring of the bearing, the retainer and the rolling body are all dispersed, the inner ring can be taken out by using the existing puller, the outer ring is fixed in the base hole and is difficult to take out, and no proper tool is available at present, so that certain difficulty is caused in equipment maintenance. At present, when the bearing outer ring is disassembled, some simple and rough knocking disassembling methods are generally adopted, the disassembling cannot be completed by using the method with small force, other workpieces can be damaged by using overlarge force, the difficulty is increased for equipment maintenance, and the working efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
For solving the problem that proposes among the above-mentioned background art, the utility model provides a special extracting tool of bearing inner race, this instrument simple structure, convenient operation has reduced the maintenance degree of difficulty of equipment, has improved work efficiency.
In order to realize the technical purpose, the utility model adopts the technical proposal that: a special dismounting tool for a bearing outer ring comprises a first drawing mechanism, a second drawing mechanism and a positioning mechanism, wherein the first drawing mechanism comprises a first supporting disc, first supporting rods and a lead screw, the lead screw is installed at the center of the first supporting disc in a matched mode, the number of the first supporting rods is three, the first supporting rods are evenly distributed around the lead screw, one ends of the first supporting rods are fixedly connected with the first supporting disc, and the other ends of the first supporting rods are provided with first fan-shaped supporting blocks; the second drawing mechanism comprises a second supporting disc and second supporting rods, wherein an internal thread is arranged in a center hole of the first disc and is in threaded fit connection with a lead screw, three strip-shaped adjusting holes are uniformly distributed in the second supporting disc, the number of the second supporting rods is three, a screw rod is arranged at one end of each second supporting rod, the screw rods penetrate through the strip-shaped adjusting holes and are in fit connection with nuts, and a second fan-shaped supporting block is arranged at the other section of each second supporting rod; the positioning mechanism comprises a holding handle and a conical screw rod and is mainly used for adjusting the diameter of the outer circumference of the second fan-shaped supporting block so as to ensure the close fit with the groove in the bearing outer ring and ensure the uniform stress of the bearing outer ring.
Furthermore, the second drawing mechanism is sleeved on the inner side of the first drawing mechanism, and the second supporting disc moves along with the rotation of the screw rod, so that the second supporting rod is driven to do telescopic motion.
Furthermore, the second supporting rods and the first supporting rods are parallel to each other and correspond to each other one by one.
Furthermore, the arc of the outer side of the second fan-shaped supporting block is matched with the radian of the groove in the bearing outer ring.
Compared with the prior art, the beneficial effects of the utility model are that:
through the technical scheme, the utility model provides a bearing inner race is difficult to the technical problem who dismantles when the equipment maintenance, the utility model discloses can adjust according to the bearing model size and draw the circumference diameter, through adopting the rotatory lead screw of spanner, drive the outside motion of second drawing mechanism to the dismantlement to the bearing inner race is realized. The utility model discloses simple structure, low in manufacturing cost uses swiftly convenient, has practiced thrift the maintenance duration and the labour cost of equipment, has improved work efficiency.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
In the figure: 1-a first supporting disc, 2-a first supporting rod, 3-a screw rod, 4-a first sector supporting block, 5-a second supporting disc, 6-a second supporting rod, 7-a strip-shaped adjusting hole, 8-a screw rod, 9-a nut, 10-a second sector supporting block, 11-a holding handle, 12-a conical screw rod and 13-a bearing supporting part.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the special dismounting tool for the bearing outer ring comprises a first drawing mechanism, a second drawing mechanism and a positioning mechanism, wherein the first drawing mechanism comprises a first supporting disc 1, first supporting rods 2 and a lead screw 3, the lead screw 3 is installed at the center of the first supporting disc 1 in a matched mode, the three first supporting rods 2 are uniformly distributed around the lead screw 3, one end of each first supporting rod is fixedly connected with the first supporting disc 1, and the other end of each first supporting rod 2 is provided with a first fan-shaped supporting block 4; the second drawing mechanism comprises a second supporting disc 5 and second supporting rods 6, wherein an internal thread is arranged in a center hole of the first disc 5 and is in threaded fit connection with a screw rod 3, three strip-shaped adjusting holes 7 are uniformly distributed in the second supporting disc 5, the number of the second supporting rods 6 is three, one end of each second supporting rod is provided with a screw rod 8, the screw rod 8 penetrates through the strip-shaped adjusting holes 7 to be in fit connection with a nut 9, and the other section of each second supporting rod 6 is provided with a second fan-shaped supporting block 10; the positioning mechanism comprises a holding handle 11 and a conical screw 12, and is mainly used for adjusting the diameter of the outer circumference of the second fan-shaped supporting block 10 so as to ensure the close fit with the groove in the bearing outer ring and ensure the uniform stress of the bearing outer ring.
The utility model discloses well second drawing mechanism cover is established in the inboard of first drawing mechanism, second support disc 5 removes along with lead screw 3's rotation to it makes concertina movement to drive second bracing piece 6.
The utility model discloses well second bracing piece 6 is parallel to each other with first bracing piece 2 to the one-to-one.
The outer arc of the second fan-shaped supporting block 10 of the utility model is identical with the radian of the groove in the bearing outer ring.
When the bearing support device is used, firstly, the diameter of the outer circumference of the second fan-shaped support block 10 is adjusted to be smaller than the inner diameter of the bearing outer ring to be disassembled, the first fan-shaped support block 4 is propped against the end face of the bearing support part 13, the screw rod 3 is rotated anticlockwise by a wrench to enable the second support disc 5 to move towards the direction of the bearing outer ring to be disassembled, and the second fan-shaped support block 10 extends into the inner side of the bearing outer ring and is aligned with the inner groove of the bearing outer ring. Then, the diameter of the outer circumference of the second fan-shaped supporting block 10 is adjusted by adopting a positioning mechanism, so that the second fan-shaped supporting block 10 is clamped into the inner groove to be tightly matched, and the specific adjusting method comprises the following steps: loosening the nut at one end of the second support rod 6, holding the handle 11 by hand to place the conical screw 12 in the middle of the three second fan-shaped support blocks 10, rotating and pushing the conical screw 12 by hand to expand the three second fan-shaped support blocks 10 outwards so as to enlarge the diameter of the outer circumference until the second fan-shaped support blocks 10 are tightly matched with the inner groove of the bearing outer ring, fastening the nut 9 at one end of the second support rod 6, and taking down the positioning device. And finally, the screw rod 3 is rotated clockwise by a wrench, the bearing outer ring is gradually pulled out of the bearing supporting component, and the bearing outer ring is disassembled.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a special extracting tool of bearing inner race which characterized in that: the drawing mechanism comprises a first drawing mechanism, a second drawing mechanism and a positioning mechanism, wherein the first drawing mechanism comprises a first supporting disc, first supporting rods and a lead screw, the lead screw is installed at the center of the first supporting disc in a matching mode, the number of the first supporting rods is three, the first supporting rods are evenly distributed around the lead screw, one ends of the first supporting rods are fixedly connected with the first supporting disc, and the other ends of the first supporting rods are provided with first fan-shaped supporting blocks; the second drawing mechanism comprises a second supporting disc and second supporting rods, wherein an internal thread is arranged in a center hole of the second supporting disc and is in threaded fit connection with a lead screw, three strip-shaped adjusting holes are uniformly distributed in the second supporting disc, the number of the second supporting rods is three, a screw rod is arranged at one end of each second supporting rod and penetrates through the strip-shaped adjusting holes to be in fit connection with a nut, and a second fan-shaped supporting block is arranged at the other section of each second supporting rod; the positioning mechanism comprises a holding handle and a conical screw rod and is mainly used for adjusting the diameter of the outer circumference of the second fan-shaped supporting block so as to ensure the close fit with the groove in the bearing outer ring and ensure the uniform stress of the bearing outer ring.
2. The special dismounting tool for the bearing outer ring according to claim 1, wherein: the second drawing mechanism is sleeved on the inner side of the first drawing mechanism, and the second supporting disc moves along with the rotation of the screw rod, so that the second supporting rod is driven to do telescopic motion.
3. The special dismounting tool for the bearing outer ring according to claim 1, wherein: the second supporting rods are parallel to the first supporting rods and correspond to the first supporting rods one by one.
4. The special dismounting tool for the bearing outer ring according to claim 1, wherein: and the arc of the outer side of the second fan-shaped supporting block is matched with the radian of the groove in the bearing outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020554191.7U CN212471333U (en) | 2020-04-15 | 2020-04-15 | Special extracting tool of bearing inner race |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020554191.7U CN212471333U (en) | 2020-04-15 | 2020-04-15 | Special extracting tool of bearing inner race |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212471333U true CN212471333U (en) | 2021-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020554191.7U Active CN212471333U (en) | 2020-04-15 | 2020-04-15 | Special extracting tool of bearing inner race |
Country Status (1)
| Country | Link |
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| CN (1) | CN212471333U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114536275A (en) * | 2022-03-17 | 2022-05-27 | 陕西法士特齿轮有限责任公司 | Bearing disassembly body |
| CN115255875A (en) * | 2022-08-04 | 2022-11-01 | 江苏中车电机有限公司 | Motor bearing outer ring dismounting device and method for dismounting motor bearing outer ring |
-
2020
- 2020-04-15 CN CN202020554191.7U patent/CN212471333U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114536275A (en) * | 2022-03-17 | 2022-05-27 | 陕西法士特齿轮有限责任公司 | Bearing disassembly body |
| CN115255875A (en) * | 2022-08-04 | 2022-11-01 | 江苏中车电机有限公司 | Motor bearing outer ring dismounting device and method for dismounting motor bearing outer ring |
| CN115255875B (en) * | 2022-08-04 | 2023-08-29 | 江苏中车电机有限公司 | Motor bearing outer ring dismounting device and motor bearing outer ring dismounting method |
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