CN203542525U - Blind hole multifunctional bearing tensioning device - Google Patents
Blind hole multifunctional bearing tensioning device Download PDFInfo
- Publication number
- CN203542525U CN203542525U CN201320749947.3U CN201320749947U CN203542525U CN 203542525 U CN203542525 U CN 203542525U CN 201320749947 U CN201320749947 U CN 201320749947U CN 203542525 U CN203542525 U CN 203542525U
- Authority
- CN
- China
- Prior art keywords
- blind hole
- bearing
- nut
- expansion sleeve
- pulling force
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a blind hole multifunctional bearing tensioning device. The blind hole multifunctional bearing tensioning device comprises a baffle (1), a center rod (2), an impact hammer (3), a nut (4), a screw (5) and an expansion sleeve (6), and is characterized in that the baffle (1) with a round top is arranged on the top of the center rod (2), the impact hammer (3) with a thin middle portion and two thick ends is arranged on the center rod (2) in a sleeved mode, the lower portion of the center rod (2) is connected with the nut (4) in threaded mode, the lower portion of the nut (4) is connected with the screw (5) in a threaded mode, and the screw (5) is connected with the expansion sleeve (6) in a sleeved mode. The blind hole multifunctional bearing tensioning device is convenient to operate, the expansion sleeve and a bearing sleeve or bearing are expanded into a whole, the contact area is large, friction force is large, stress is even, the bearing sleeve or bearing can be quickly disassembled from a blind hole of mechanical equipment without being heated or damaged, and the maintaining speed and economic benefits are improved.
Description
Technical field
the utility model relates to plant equipment casing, housing axle sleeve or bearing extractor, specifically a kind of blind hole multifunction bearing pulling force device.
Technical background
in the maintenance industry of pump, motor and some equipment; often can run into axle sleeve, bearing is set in blind hole; while changing when needing repairing; dismantle such axle sleeve or bearing very difficult; conventionally the following method dismounting adopting: the one, the local heat of the casing of axle sleeve, bearing, housing; make its expanded by heating, take out axle sleeve or bearing.When housing is aluminium alloy, nonmetallic materials, or other is while being difficult for heating material, and this method is just inapplicable.The 2nd, destructive axle sleeve, bearing are sliced off to taking-up with gas cutting.But in the process of gas cutting, easily hurt casing, housing, cause large economic loss.
Summary of the invention
the purpose of this utility model is exactly in view of the foregoing defects the prior art has, designs a kind of blind hole multifunction bearing pulling force device.
the utility model is realized by following technical proposals:
the utility model comprises: blind, center-pole, jump bit, nut, screw rod, expansion sleeve.The central post top portion of its blind hole multifunction bearing pulling force device is provided with dome blind, and sub-waist shape jump bit is enclosed within on center-pole, and center-pole bottom is connected with nut thread, and the bottom of nut is connected with screw flight, and screw rod is threaded with expansion sleeve.
nut inner thread upper end in above-mentioned blind hole multifunction bearing pulling force device is common internal thread, and lower end is cone internal thread.
the external screw thread of the screw rod in above-mentioned blind hole multifunction bearing pulling force device is cone external screw thread, and lower end is provided with through hole.
expansion sleeve internal thread in above-mentioned blind hole multifunction bearing pulling force device is cone internal thread, and top-bottom cross is respectively equipped with three～tetra-upper sheds and under shed, and periphery is provided with two～six road cannelures.
the beneficial effects of the utility model are: easy to operate, expansion sleeve and axle sleeve or brearing bore are swollen, and to be integrated contact area large, and frictional force is large, stressed even, without heating, destruction in the situation that, dismantle rapidly axle sleeve or bearing in plant equipment blind hole, improve maintenance speed and economic benefit.
Accompanying drawing explanation
fig. 1-the utility model master looks broken section structural representation.
in accompanying drawing, 1. blind, 2. center-pole, 3. jump bit, 4. nut, 5. screw rod, 6. expansion sleeve; A. upper shed, B. under shed, C. cannelure, D. through hole.
The specific embodiment
below in conjunction with accompanying drawing, enforcement of the present utility model is further elaborated:
blind hole multifunction bearing pulling force device is comprised of blind 1, center-pole 2, jump bit 3, nut 4, screw rod 5, expansion sleeve 6.Center-pole 2 tops of its blind hole multifunction bearing pulling force device are provided with dome blind 1, sub-waist shape jump bit 3 is enclosed within on center-pole 2, center-pole 2 bottoms are threaded with nut 4, the bottom of nut 4 and screw rod 5 are threaded for cone, same screw rod 5 is respectively equipped with four upper shed A with top-bottom cross and under shed B expansion sleeve 6 cones are threaded, and expansion sleeve 6 peripheries are provided with six road cannelure C.During use, make expansion sleeve 6 and bearing or sleeve diameter swelling, carrying jump bit 3 on repeatedly clashes into blind 1, bearing or axle sleeve can be taken out.
Claims (4)
1. a blind hole multifunction bearing pulling force device, comprising: blind (1), center-pole (2), jump bit (3), nut (4), screw rod (5), expansion sleeve (6); It is characterized in that: center-pole (2) top of described blind hole multifunction bearing pulling force device is provided with dome blind (1), sub-waist shape jump bit (3) is enclosed within on center-pole (2), center-pole (2) bottom is threaded with nut (4), the bottom of nut (4) is threaded with screw rod (5), and screw rod (5) is threaded with expansion sleeve (6).
2. blind hole multifunction bearing pulling force device according to claim 1, is characterized in that: described
Nut (4) internal thread upper end is common internal thread, and lower end is cone internal thread.
3. blind hole multifunction bearing pulling force device according to claim 1, is characterized in that: the external screw thread of described screw rod (5) is cone external screw thread, and lower end is provided with through hole (D).
4. blind hole multifunction bearing pulling force device according to claim 1, it is characterized in that: described expansion sleeve (6) internal thread is cone internal thread, top-bottom cross is respectively equipped with three～tetra-upper sheds (A) and under shed (B), and periphery is provided with two～six road cannelures (C).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320749947.3U CN203542525U (en) | 2013-11-26 | 2013-11-26 | Blind hole multifunctional bearing tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320749947.3U CN203542525U (en) | 2013-11-26 | 2013-11-26 | Blind hole multifunctional bearing tensioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203542525U true CN203542525U (en) | 2014-04-16 |
Family
ID=50460692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320749947.3U Expired - Fee Related CN203542525U (en) | 2013-11-26 | 2013-11-26 | Blind hole multifunctional bearing tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203542525U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192512A (en) * | 2020-09-29 | 2021-01-08 | 中国航发动力股份有限公司 | Bearing pulling device and using method thereof |
| CN114434088A (en) * | 2020-11-06 | 2022-05-06 | 中国石油天然气股份有限公司 | Device and method for disassembling shaft sleeve of centrifugal pump |
-
2013
- 2013-11-26 CN CN201320749947.3U patent/CN203542525U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192512A (en) * | 2020-09-29 | 2021-01-08 | 中国航发动力股份有限公司 | Bearing pulling device and using method thereof |
| CN114434088A (en) * | 2020-11-06 | 2022-05-06 | 中国石油天然气股份有限公司 | Device and method for disassembling shaft sleeve of centrifugal pump |
| CN114434088B (en) * | 2020-11-06 | 2023-09-26 | 中国石油天然气股份有限公司 | Device and method for disassembling shaft sleeve of centrifugal pump |
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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: 20140416 Termination date: 20141126 |
|
| EXPY | Termination of patent right or utility model |