CN204621955U - Bearing puller - Google Patents
Bearing puller Download PDFInfo
- Publication number
- CN204621955U CN204621955U CN201520230805.5U CN201520230805U CN204621955U CN 204621955 U CN204621955 U CN 204621955U CN 201520230805 U CN201520230805 U CN 201520230805U CN 204621955 U CN204621955 U CN 204621955U
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- push rod
- bearing
- host cavity
- thimble
- polishing head
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Abstract
The utility model provides a kind of bearing puller, comprise crossbeam, jaw and push rod, described jaw is hinged on the two ends of crossbeam, push rod and crossbeam threaded engagement, the upper end of push rod is provided with rotary handle, its bottom is provided with polishing head, and meanwhile, this bearing puller also comprises a rotation ejector pin mechanism, described rotation ejector pin mechanism is arranged near the side, place, bottom of push rod, and the bottom of described polishing head and this push rod is set in and rotates in ejector pin mechanism.When adopting the bearing puller that provides of the utility model to carry out dismantlement work, avoid thimble damage and twist off, or the problem such as the axis hole damage of part to be demolished, improve maintenance efficiency, and reduce maintenance cost.
Description
Technical field
The utility model relates to a kind of extracting tool of machinery industry, the bearing puller used when particularly relating to a kind of maintenance of equipment dismounting bearing.
Background technology
Bearing (Bearing) is in mechanical transmission course, play parts that are fixing and reduction load coefficient of friction, is a kind of very important parts in contemporary plant equipment.The dismounting of bearing is in periodic maintenance, carry out during bearing replacing, and in unloading process, in the bearing removal process of particularly interference fit, for not damaging the parts of bearing, the operation easier of its dismounting is large, need to coordinate special provision for disengagement, and bearing puller is a kind of conventional bearing disassembling device.
Fig. 1 is the structural representation of existing a kind of bearing puller 10, it mainly contains crossbeam 1, jaw 2 and push rod 3 are formed, described jaw 2 is hinged on the two ends of crossbeam 1, push rod 3 and crossbeam 1 threaded engagement, the upper end of push rod 3 is provided with rotary handle 4, and its bottom is provided with polishing head 5, and described polishing head 5 is cone shape top tip structure.When utilizing existing bearing puller to dismantle part to be demolished 11, first, by polishing head 5 immediate roof of the bottom of the push rod 3 of bearing puller 10 in the axis hole of part to be demolished 11, then, jaw 2 is caught on the appropriate location of part to be demolished 11, rotate the rotary handle 4 of push rod 3, the body of rod of push rod 3 is threaded, during rotation, push rod 3 is motionless, and the relative push rod 3 of crossbeam 1 connecting jaw 2 is in rotary moving backward, and the relative crossbeam 1 of push rod 3 is forward to part to be demolished 11 force in rotary moving, be with moving jaw plate 2 to move backward simultaneously, thus carry out dismantlement work.
But, rotate in the process of push rod 3 at dismounting parts, between the polishing head 5 of push rod 3 bottom of bearing puller 10 and axis hole, there is larger frictional force.When need due to bearing interference engaging to apply larger power could by bearing removal time, frictional force between polishing head 5 and axis hole becomes large, the cone shape top tip structure damage of polishing head 5 is so likely caused to twist off, or cause axis hole to damage, cause bearing puller to be scrapped or device damage, this not only adds maintenance time, affect the operational efficiency of equipment, and increase maintenance cost, add cost.
Utility model content
In view of above problem, the utility model provides a kind of bearing puller, twists off to solve the damage of above-mentioned bearing puller top tip structure, or the problem causing axis hole to damage.
This bearing puller comprises crossbeam, jaw and push rod, described jaw is hinged on the two ends of crossbeam, push rod and crossbeam threaded engagement, the upper end of push rod is provided with rotary handle, and its bottom is provided with polishing head, it is characterized in that, described bearing puller also comprises a rotation ejector pin mechanism, and described rotation ejector pin mechanism is arranged near the bottom of push rod, and the bottom of described polishing head and this push rod is set in and rotates in ejector pin mechanism.
Further, one end of described rotation ejector pin mechanism arranges hollow guide pin bushing, the bottom of described push rod is positioned at this guide pin bushing together with polishing head, the other end of this rotation ejector pin mechanism be share a bottom with this guide pin bushing and with host cavity, this host cavity and this guide pin bushing central axes of the back-to-back setting of this guide pin bushing.
Preferably, this guide pin bushing and this host cavity are cylindrical shape, and the diameter of this host cavity is large compared with the diameter of this guide pin bushing.
Further, described polishing head is cone shape top tip structure, and the inside bottom wall of this guide pin bushing is to being provided with the groove with the mating shapes of this polishing head in polishing head position, and described polishing head is accommodated in this groove.
Further, the inside of described host cavity contains thrust roller bearing, thimble, ball bearing and jump ring, described thrust roller bearing is fixedly connected on the inside bottom wall of this host cavity, one end of this thimble is set in this thrust roller bearing, the other end of this thimble is set in this ball bearing, this ball bearing is between the sidewall and this thimble of this host cavity, described jump ring is positioned on the sidewall of close aperture position of this host cavity, for by this ball bearing, this thrust roller bearing thimble, ball bearing are contained in host cavity.
Further, described ball bearing between the sidewall and this thimble of this host cavity, for doing the spacing of radial direction to this thimble.
Further, the part end body of one end that this tailstock barrel is loaded in this ball bearing protrudes from this host cavity, and also, the end face of the side be set in this ball bearing of this thimble is positioned at the outside of this host cavity.
Further, the end face being positioned at outside this host cavity of this thimble is provided with top tip part, and this top tip part is located along the same line with the polishing head of the bottom being positioned at push rod, the dead in line at this straight line and this host cavity and this guide pin bushing center.
Bearing puller of the present utility model is owing to rotating the existence of ejector pin mechanism, avoid the polishing head of bearing puller and direct contact of workpiece wheel shaft axis hole, and in unloading process, when the rotary handle rotating push rod exerts a force to part to be demolished, push rod driven rotary ejector pin mechanism rotates, but this thimble can not rotate, also be, the top tip part contacted with part to be demolished can not rotate, the impact that between the axis hole avoiding top tip part and part to be demolished, frictional force is brought, the force of push rod passes to thimble by thrust roller bearing simultaneously, being put on by this thimble treats in the axis hole of removable member, reach the object of dismounting parts, and it also avoid thimble damage twist off, or the problems such as axis hole damage, thus improve maintenance efficiency, reduce cost.
Accompanying drawing explanation
Fig. 1 is the structural representation that existing a kind of bearing puller acts on bearing;
Fig. 2 is the structural representation of bearing puller of the present utility model;
Fig. 3 is the cross-sectional view of the rotation ejector pin mechanism of bearing puller of the present utility model.
Detailed description of the invention
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in detail detailed description of the invention of the present utility model below in conjunction with accompanying drawing.
Fig. 2 is the structural representation of bearing puller of the present utility model, and in embodiment of the present utility model, the parts identical with existing bearing puller all adopt identical label.Please refer to shown in Fig. 2, bearing puller 20 of the present utility model comprises crossbeam 1, jaw 2 and push rod 3, described jaw 2 is hinged on the two ends of crossbeam 1, push rod 3 and crossbeam 1 threaded engagement, the upper end of push rod 3 is provided with rotary handle 4, its bottom is provided with polishing head 5, described polishing head 5 is cone shape top tip structure, bearing puller 20 of the present utility model also comprises a rotation ejector pin mechanism 6, described rotation ejector pin mechanism 6 is arranged near the side, bottom of push rod 3, and the bottom of described polishing head 5 and this push rod 3 is set in and rotates in ejector pin mechanism 6.
Fig. 3 is the structural representation of the rotation ejector pin mechanism 6 of the bearing puller 20 that the utility model provides, and shown in Fig. 1 and Fig. 2, one end of described rotation ejector pin mechanism 6 is set to hollow guide pin bushing 61, and in the present embodiment, this hollow guide pin bushing 61 cylindrically.The bottom of described push rod 3 is positioned at this guide pin bushing 61 together with polishing head 5, and the bottom interior wall of this guide pin bushing 61 is to being provided with the groove 610 with the mating shapes of this polishing head 5 in polishing head 5 position, and described polishing head 5 is accommodated in this groove 610.The other end of this rotation ejector pin mechanism 6 be share a diapire with this guide pin bushing 61 and with the host cavity 62 of the back-to-back setting of this guide pin bushing 61, in the present embodiment, this host cavity 61 also cylindrically, the central axes of this host cavity 62 and this guide pin bushing 61.
Usually, the diameter of this cylindric host cavity 62 is large compared with the diameter of this cylindric guide pin bushing 61.
Thrust roller bearing 621, thimble 622, ball bearing 623 and jump ring 624 is contained in the inside of this host cavity 62.
Described thrust roller bearing 621 is fixedly connected at the bottom of the cylinder of this host cavity 62, one end of this thimble 622 is set in this thrust roller bearing 621, when the rotary handle 4 rotating push rod 3 exerts a force to part to be demolished, this thrust roller bearing 624 is for being transmitted to this thimble 622 by this force; The other end of this thimble 622 is set in this ball bearing 623, also be, this ball bearing 623 is between the sidewall and this thimble 622 of this host cavity 62, when rotating the rotary handle 4 of push rod 3, push rod 3 can drive this host cavity 62 to rotate, but due to the effect of this ball bearing 623, this thimble 622 can not rotate.The part end body that this thimble 622 is set in one end of this ball bearing 623 protrudes from this host cavity 62, that is, the end face 6221 of one end that this thimble 622 is set in this ball bearing 623 is positioned at the outside of this host cavity 62, and top tip part 6223 is provided with on this end face 6221, this top tip part 6223 is positioned on same straight line I-I with the polishing head 5 of the bottom 32 being positioned at push rod 3.
Preferably, the central axes of this straight line I-I and this host cavity 62 and this guide pin bushing 61.
In the present embodiment, radial this thimble 622 spacing of this ball bearing 623, when this host cavity 62 rotates under the drive of push rod 3, due to the effect of this ball bearing 623, this thimble 622 can not rotate.
In the present embodiment, described jump ring 624 is positioned on the sidewall of the close opening of this cylindric host cavity 62, supports this ball bearing 623, thus this thrust roller bearing 621, thimble 622, ball bearing 623 is contained in this cylindric host cavity 62.
When the bearing puller 20 utilizing the utility model embodiment to provide dismantles part to be demolished 10, first, the top tip part 6223 of the thimble 622 rotating ejector pin mechanism 6 is withstood in the axis hole of part to be demolished 10, then, jaw 2 is caught on the appropriate location of part to be demolished 10, rotate the rotary handle 4 of push rod 3, push rod 3 is in rotary moving backward to be relatively with the crossbeam 1 of the jaw 2 that is dynamically connected, push rod 3 rotates force to part to be demolished 10 forward relative to crossbeam 1, particularly, in this example, the bottom 32 of this push rod 3 and described polishing head 5 are set in the cylindric guide pin bushing 61 rotating ejector pin mechanism 6, the top tip part 6223 of the thimble 622 of this rotation ejector pin mechanism 6 is withstood in the axis hole of part to be demolished 10, when the rotary handle 4 rotating push rod 3 is with the crossbeam 1 of the jaw 2 that is dynamically connected, push rod 3 is in rotary moving backward relatively, push rod 3 is when crossbeam 1 rotates force to part to be demolished 10 forward, this force is delivered on top tip part 6223 by thrust roller bearing 621 by the power be applied on polishing head 5, by this top tip part 6223, this part to be demolished 10 is exerted a force, thus carry out dismantlement work.
During the bearing puller dismounting part to be demolished utilizing this example to provide, the push rod 3 driven rotary ejector pin mechanism 6 of bearing puller 20 rotates, but this thimble 622 can not rotate, thus the top tip part 6223 contacted with part to be demolished 10 can not rotate, the impact that between the axis hole avoiding top tip part 6223 and part to be demolished 10, frictional force is brought, namely the object of dismounting parts is reached, it also avoid top tip structure damage to twist off, or the problems such as axis hole damage, thus improve maintenance efficiency, reduce cost.
Above bearing puller provided by the utility model is described in detail, apply specific case in this description to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (8)
1. a bearing puller, comprise crossbeam, jaw and push rod, described jaw is hinged on the two ends of described crossbeam, described push rod and described crossbeam threaded engagement, the upper end of described push rod is provided with rotary handle, the bottom of described push rod is provided with polishing head, it is characterized in that, described bearing puller also comprises a rotation ejector pin mechanism, described rotation ejector pin mechanism is arranged near the bottom of described push rod, and the bottom of described polishing head and described push rod is set in described rotation ejector pin mechanism.
2. bearing puller as claimed in claim 1, it is characterized in that, one end of described rotation ejector pin mechanism arranges hollow guide pin bushing, the bottom of described push rod is positioned at this guide pin bushing together with described polishing head, the other end of this rotation ejector pin mechanism is for sharing a bottom and arrange formation host cavity back-to-back with this guide pin bushing, this host cavity and this guide pin bushing central axes with this guide pin bushing.
3. bearing puller as claimed in claim 2, is characterized in that, this guide pin bushing and this host cavity are cylindrical shape, and the diameter of this host cavity is large compared with the diameter of this guide pin bushing.
4. bearing puller as claimed in claim 2, it is characterized in that, described polishing head is cone shape top tip structure, and the inside bottom wall of this guide pin bushing is to being provided with the groove with the mating shapes of this polishing head in polishing head position, and described polishing head is accommodated in this groove.
5. bearing puller as claimed in claim 4, it is characterized in that, the inside of described host cavity contains thrust roller bearing, thimble, ball bearing and jump ring, described thrust roller bearing is fixedly connected on the inside bottom wall of this host cavity, one end of this thimble is set in this thrust roller bearing, the other end of this thimble is set in this ball bearing, described jump ring is positioned on the sidewall of close aperture position of this host cavity, for by this ball bearing, this thrust roller bearing thimble, this ball bearing are contained in this host cavity.
6. bearing puller as claimed in claim 5, is characterized in that, described ball bearing between the sidewall and this thimble of this host cavity, for doing the spacing of radial direction to this thimble.
7. bearing puller as claimed in claim 6, it is characterized in that, the part end body that this tailstock barrel is loaded on one end of this ball bearing protrudes from this host cavity, and also, the end face of the side be set in this ball bearing of this thimble is positioned at the outside of this host cavity.
8. bearing puller as claimed in claim 7, it is characterized in that, the end face being positioned at outside this host cavity of this thimble is provided with top tip part, this top tip part is located along the same line with the described polishing head of the bottom being positioned at described push rod, the dead in line at this straight line and this host cavity and this guide pin bushing center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520230805.5U CN204621955U (en) | 2015-04-16 | 2015-04-16 | Bearing puller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520230805.5U CN204621955U (en) | 2015-04-16 | 2015-04-16 | Bearing puller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204621955U true CN204621955U (en) | 2015-09-09 |
Family
ID=54041016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520230805.5U Active CN204621955U (en) | 2015-04-16 | 2015-04-16 | Bearing puller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204621955U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI650211B (en) * | 2018-04-10 | 2019-02-11 | 欣富康實業有限公司 | Axle puller |
| CN112171584A (en) * | 2020-09-26 | 2021-01-05 | 嘉兴学院 | Puller for bearing on shaft |
-
2015
- 2015-04-16 CN CN201520230805.5U patent/CN204621955U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI650211B (en) * | 2018-04-10 | 2019-02-11 | 欣富康實業有限公司 | Axle puller |
| CN112171584A (en) * | 2020-09-26 | 2021-01-05 | 嘉兴学院 | Puller for bearing on shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: Kunshan Longteng Au Optronics Co Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: Kunshan Longteng Optronics Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |