CN203887794U - Self-positioning blind hole bearing disassembling device - Google Patents
Self-positioning blind hole bearing disassembling device Download PDFInfo
- Publication number
- CN203887794U CN203887794U CN201420333668.3U CN201420333668U CN203887794U CN 203887794 U CN203887794 U CN 203887794U CN 201420333668 U CN201420333668 U CN 201420333668U CN 203887794 U CN203887794 U CN 203887794U
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- China
- Prior art keywords
- sleeve
- endoporus
- bearing
- lead
- blind hole
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Abstract
The utility model provides a self-positioning blind hole bearing disassembling device. The self-positioning blind hole bearing disassembling device solves the problem that an existing disassembling device is not easy to use. The self-positioning blind hole bearing disassembling device comprises a lead screw with a handle, a guide post, a sleeve and an expansion spring, wherein the guide column, the sleeve and the expansion spring are installed on the lead screw. The guide post is in threaded connection with the bottom end of the lead screw, the sleeve is in threaded connection with the outer portion of the lead screw, and the expansion spring is in threaded connection with the outer portion of the sleeve. A mechanism combining the expansion spring, the lead screw and the guide post is adopted, and then a bearing in a blind hole is disassembled. The expansion spring is matched with an inner hole of the bearing so that the guide post can be automatically positioned, by the limitation of the lifting motion of the lead screw through the guide post, accuracy of the lifting motion of the lead screw is guaranteed, the inner hole of the bearing is held through a clamping jaw of the expansion spring, the contact area of the bearing and the clamping jaw is increased, stability of the lifting motion is guaranteed, operation is convenient and reliable, and adverse factors of a traditional disassembly and assembly method are avoided.
Description
Technical field
The utility model relates to a kind of mechanical extracting tool, specifically a kind of self-align blind hole bearing provision for disengagement.
Background technology
Bearing is in mechanical transmission course, to work the parts of fixing and reducing the effect of load coefficient of friction, and it is applied in the transmission system of engineering goods widely.In maintenance of equipment process, often run into need dismounting bearing situation, because bearing fit has the magnitude of interference, dismounting relatively effort, especially the bearing in blind hole, has no way of doing it especially.
At present the conventional dismantling device of blind hole bearing is to draw horse, draws horse simple in structure, easily seriation, but due to its claw and brearing bore contact area little, lifting process lacks guiding, to having relatively high expectations of operator.Mainly there is following drawback in the method: while 1) pulling out bearing, adjust, keep drawing leading screw Yu Zhou center consistent, pulling claw is answered straight pulling inner ring, otherwise easily causes pulling claw to come off at once; 2) while just drawing, action is wanted slowly, does not want too urgent too quicklyly, should not produce and time adjusting a phenomenon in arm-tie; 3) each clearance between tiebars from and pull bar length should equate, avoid producing deflection and unbalance stress, cause pulling bearing and dead eye, or bearing suppressed extremely in dead eye.
Summary of the invention
The purpose of this utility model is in order to solve above-mentioned problems of the prior art, and a kind of self-align blind hole bearing provision for disengagement is provided.
The utility model is achieved by the following technical solution:
A kind of self-align blind hole bearing provision for disengagement, comprises and establishes handled leading screw and be arranged on lead, sleeve and the swollen spring on leading screw, the profile of lead is cylindrical, on lead, is provided with endoporus along its axial direction, and one end of endoporus is provided with screw thread, the other end is interior hexagonal hole, and the endoporus of lead is established threaded one end and is connected with leading screw bottom thread, the profile one end mill side of sleeve, the other end be provided with the conical surface (one end, milling side for the screwing of leading screw, swollen spring helicitic texture, conical surface one end is for the claw of the swollen spring of distending), the outer wall of sleeve is provided with screw thread, endoporus one end of sleeve is provided with screw thread, the other end is unthreaded hole, the endoporus of sleeve is established threaded one end and is connected with threads of lead screw, is sleeved on lead outside (lead and sleeve form little matched in clearance, and the lifting of sleeve is play the guiding role) for one end of unthreaded hole, one end of swollen spring is tubulose, the other end is claw, tubular sections profile milling side, endoporus is provided with screw thread (milling side be for the screwing of bush whorl structure), claw section is provided with fluting, endoporus is provided with the conical surface matching with the conical surface on sleeve, swollen spring is sleeved on sleeve outside, the tubular sections endoporus of swollen spring is threaded with sleeve outer wall, the conical surface of claw section endoporus matches with the conical surface of sleeve one end, and (swollen spring and sleeve regulate the mutual alignment of the two by screw thread, thereby regulate the relative position of the swollen spring conical surface and the sleeve conical surface, finally realize the adjusting of claw radial dimension).
Tear open before bearing, first assemble the utility model device, concrete steps are as follows: together with sleeve is arrived by Screw assembly with swollen spring, ensure that the end face of swollen spring exceeds the end face of sleeve (being the unthreaded hole end end face that the claw section end face of swollen spring exceeds sleeve), does not strut with the claw that ensures swollen spring; By the sleeve assembling, swollen spring by Screw assembly to leading screw; Lead is connected with leading screw by screw thread.
Install after the utility model device, packed in dead eye, by regulating the position of swollen spring, swollen spring periphery is coordinated with brearing bore, the claw of swollen spring struts simultaneously, size is greater than the size of brearing bore, use hexagon fixed muffle, rotary handle, makes lead contact with workpiece blind hole bottom, and now the axial displacement of lead is limited, continue rotary handle, can be with moving sleeve, the lifting from blind hole together of swollen spring, thereby make the claw of this swollen spring firmly grasp bearing lower surface, and be with dynamic bearing to separate from workpiece.Sleeve and swollen spring are in lifting process, and owing to there being the restriction of lead, lifting direction is consistent with brearing bore axis direction all the time.
Bearing, after workpiece is pulled down, regulates the position of swollen spring and sleeve, makes swollen spring claw size reply original state, bearing can be taken out from the utility model device.
The mechanism that the utility model device has adopted swollen spring, leading screw, lead to combine, realizes the dismounting of blind hole middle (center) bearing.Swollen spring coordinates with brearing bore, can realize the automatic location of lead, restriction by lead to leading screw lifting action, ensure the accurate of leading screw lifting action, hold brearing bore by swollen spring claw, increased the contact area of bearing and claw, ensure the stable of lifting action, make convenient and reliable operation, overcome the unfavorable factor of traditional assembly and disassembly methods.
The utility model has following beneficial effect compared with traditional bearing dismounting technology:
1) contact-making surface of swollen spring claw and brearing bore strengthens, and can effectively avoid claw to come off and the phenomenon of unbalance stress in lifting process;
2) adopt lead guiding, improve leading screw lifting action accuracy, avoid lifting action deflection to bring damage dead eye and bearing to suppress dead risk;
3) effectively utilized the structure of blind hole itself, whole disassembly process need to be by other supplemental support.
Brief description of the drawings
Fig. 1 is structure of the present utility model and uses schematic diagram.
In figure: 1-leading screw, 2-handle, 3-lead, 4-sleeve, 5-is swollen spring, 6-bearing, 7-workpiece.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in Figure 1, a kind of self-align blind hole bearing provision for disengagement, comprises and is provided with the leading screw 1 of handle 2 and is arranged on lead 3, sleeve 4 and the swollen spring 5 on leading screw 1; The profile of lead 3 is cylindrical, on lead 3, is provided with endoporus along its axial direction, and one end of endoporus is provided with screw thread, the other end is interior hexagonal hole, and the endoporus of lead 3 is established threaded one end and is connected with leading screw 1 bottom thread; The profile one end mill side of sleeve 4, the other end are provided with the conical surface, the outer wall of sleeve 4 is provided with screw thread, endoporus one end of sleeve 4 is provided with screw thread, the other end is unthreaded hole, and the endoporus of sleeve 4 is established threaded one end and is threaded with leading screw 1, is sleeved on lead 3 outsides for one end of unthreaded hole; One end of swollen spring 5 is that tubulose, the other end are claw, tubular sections profile milling side, endoporus are provided with screw thread, claw section is provided with fluting, endoporus is provided with the conical surface matching with the conical surface on sleeve 4, swollen spring 5 is sleeved on sleeve 4 outsides, and the tubular sections endoporus of swollen spring 5 is connected with sleeve 4 outer wall threads, the conical surface of claw section endoporus matches with the conical surface of sleeve 4 one end.
Claims (1)
1. a self-align blind hole bearing provision for disengagement, is characterized in that: comprise and be provided with the leading screw (1) of handle (2) and be arranged on lead (3), sleeve (4) and the swollen spring (5) on leading screw (1); The profile of lead (3) is cylindrical, and lead (3) is upper is provided with endoporus along its axial direction, and one end of endoporus is provided with screw thread, the other end is interior hexagonal hole, and the endoporus of lead (3) is established threaded one end and is connected with leading screw (1) bottom thread; The profile one end mill side of sleeve (4), the other end are provided with the conical surface, the outer wall of sleeve (4) is provided with screw thread, endoporus one end of sleeve (4) is provided with screw thread, the other end is unthreaded hole, and the endoporus of sleeve (4) is established threaded one end and is threaded with leading screw (1), is sleeved on lead (3) outside for one end of unthreaded hole; One end of swollen spring (5) is that tubulose, the other end are claw, tubular sections profile milling side, endoporus are provided with screw thread, claw section is provided with fluting, endoporus is provided with the conical surface matching with the upper conical surface of sleeve (4), swollen spring (5) is sleeved on sleeve (4) outside, and the tubular sections endoporus of swollen spring (5) is connected with sleeve (4) outer wall thread, the conical surface of claw section endoporus matches with the conical surface of sleeve (4) one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420333668.3U CN203887794U (en) | 2014-06-23 | 2014-06-23 | Self-positioning blind hole bearing disassembling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420333668.3U CN203887794U (en) | 2014-06-23 | 2014-06-23 | Self-positioning blind hole bearing disassembling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203887794U true CN203887794U (en) | 2014-10-22 |
Family
ID=51714241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420333668.3U Expired - Fee Related CN203887794U (en) | 2014-06-23 | 2014-06-23 | Self-positioning blind hole bearing disassembling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203887794U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107984427A (en) * | 2017-12-01 | 2018-05-04 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of aero-engine is with disassembling bushing device and application method in blind hole |
| CN109129320A (en) * | 2017-06-27 | 2019-01-04 | 江苏靖江互感器股份有限公司 | A kind of tool for dismantling NU type cylinder roller bearing inner ring |
| CN111890304A (en) * | 2020-08-12 | 2020-11-06 | 博深股份有限公司 | Bearing dismounting tool |
| CN112709775A (en) * | 2020-12-28 | 2021-04-27 | 山西平阳重工机械有限责任公司 | Piston rod of semi-active shock absorber and machining method thereof |
-
2014
- 2014-06-23 CN CN201420333668.3U patent/CN203887794U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109129320A (en) * | 2017-06-27 | 2019-01-04 | 江苏靖江互感器股份有限公司 | A kind of tool for dismantling NU type cylinder roller bearing inner ring |
| CN109129320B (en) * | 2017-06-27 | 2024-01-05 | 江苏靖江互感器股份有限公司 | Tool for disassembling NU cylindrical roller bearing inner ring |
| CN107984427A (en) * | 2017-12-01 | 2018-05-04 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of aero-engine is with disassembling bushing device and application method in blind hole |
| CN111890304A (en) * | 2020-08-12 | 2020-11-06 | 博深股份有限公司 | Bearing dismounting tool |
| CN112709775A (en) * | 2020-12-28 | 2021-04-27 | 山西平阳重工机械有限责任公司 | Piston rod of semi-active shock absorber and machining method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20150623 |
|
| EXPY | Termination of patent right or utility model |