CN103742531A - Thrust bearing pretightening device - Google Patents
Thrust bearing pretightening device Download PDFInfo
- Publication number
- CN103742531A CN103742531A CN201310708979.3A CN201310708979A CN103742531A CN 103742531 A CN103742531 A CN 103742531A CN 201310708979 A CN201310708979 A CN 201310708979A CN 103742531 A CN103742531 A CN 103742531A
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- Prior art keywords
- thrust
- bearing
- thrust bearing
- loading device
- elastic component
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Abstract
The invention provides a thrust bearing pretightening device. The thrust bearing pretightening device comprises thrust bearings and an elastic element, wherein the number of the thrust bearings is two; the elastic element is positioned between the two thrust bearings; one end of the elastic element is connected with one thrust bearing, and the other end of the elastic element is connected with the other thrust bearing. The thrust bearing pretightening device provided by the invention has the beneficial effects that a spring is used for pretightening, even though the device runs for a long time, the regulation is not needed, and the thrust bearings are always at the favorable pretightening state.
Description
Technical field
The present invention relates to pre-tightening apparatus, relate in particular to thrust bearing pre-loading device.
Background technique
Steel pipe equipment needs bidirectional movement repeatedly with main gear reducer, and the gear of main gear reducer is generally helical gear, can increase contact and shock resistance, but also produces larger axial force.And the bearing that bears larger bidirectional axial force generally adopts the thrust roller bearing of pairing, the thrust roller bearing of pairing needs pretension, and current firmly beforehand means is to carry out pretension with locking nut or by joining spacer ring.And two kinds of current firmly beforehand meanses need artificial adjustment, easily occur that after larger deviation or long-play, bolt looseness causes pretension improper.
Summary of the invention
In order to solve the problems of the prior art, the invention provides a kind of thrust bearing pre-loading device.
The invention provides a kind of thrust bearing pre-loading device, comprise thrust-bearing, elastic component, described thrust-bearing is two, and described elastic component is between two thrust-bearings, described elastic component one end is connected with one of them thrust-bearing, and the described elastic component the other end is connected with another thrust-bearing.
As a further improvement on the present invention, described elastic component is spring.
As a further improvement on the present invention, described thrust-bearing is thrust roller bearing.
As a further improvement on the present invention, this thrust bearing pre-loading device also comprises speed reducer, and described speed reducer is provided with gear and output shaft, and two thrust roller bearings are set in described output shaft outer surface.
As a further improvement on the present invention, described gear is helical gear.
The invention has the beneficial effects as follows: use spring pre-tightening, even if long-play does not need to adjust yet, thrust-bearing is all the time in good Pre strained state.
Accompanying drawing explanation
Fig. 1 is thrust bearing pre-loading device structural representation of the present invention.
Embodiment
As shown in Figure 1, the invention discloses a kind of thrust bearing pre-loading device, comprise thrust-bearing 1, elastic component 2, described thrust-bearing 1 is two, described elastic component 2 is between two thrust-bearings 1, described elastic component 2 one end are connected with one of them thrust-bearing 1, and described elastic component 2 the other ends are connected with another thrust-bearing 1.
Described elastic component 2 is spring, and described thrust-bearing 1 is thrust roller bearing.
This thrust bearing pre-loading device also comprises speed reducer, and described speed reducer is provided with gear and 3, two thrust roller bearings of output shaft are set in described output shaft 3 outer surfaces.
Described gear is helical gear.
Two thrust-bearings 1 are pairing appearance, according to the required pretightening force of pairing thrust-bearing 1, determine the length of spring.
Use spring pre-tightening, even if long-play does not need to adjust yet, thrust-bearing is all the time in good Pre strained state.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (5)
1. a thrust bearing pre-loading device, it is characterized in that: comprise thrust-bearing, elastic component, described thrust-bearing is two, described elastic component is between two thrust-bearings, described elastic component one end is connected with one of them thrust-bearing, and the described elastic component the other end is connected with another thrust-bearing.
2. thrust bearing pre-loading device according to claim 1, is characterized in that: described elastic component is spring.
3. thrust bearing pre-loading device according to claim 2, is characterized in that: described thrust-bearing is thrust roller bearing.
4. thrust bearing pre-loading device according to claim 3, is characterized in that: this thrust bearing pre-loading device also comprises speed reducer, and described speed reducer is provided with gear and output shaft, and two thrust roller bearings are set in described output shaft outer surface.
5. thrust bearing pre-loading device according to claim 4, is characterized in that: described gear is helical gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310708979.3A CN103742531A (en) | 2013-12-20 | 2013-12-20 | Thrust bearing pretightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310708979.3A CN103742531A (en) | 2013-12-20 | 2013-12-20 | Thrust bearing pretightening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103742531A true CN103742531A (en) | 2014-04-23 |
Family
ID=50499582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310708979.3A Pending CN103742531A (en) | 2013-12-20 | 2013-12-20 | Thrust bearing pretightening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103742531A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200981502Y (en) * | 2006-12-03 | 2007-11-28 | 合肥车桥有限责任公司 | Rear axle main reducing gear assembly for MPV/SUV vehicle |
| CN201096184Y (en) * | 2007-09-08 | 2008-08-06 | 辽宁曙光汽车集团股份有限公司 | Main reducing gear assembly automobile drive bridge assembly for establishing bearing pretightening |
| CN201561050U (en) * | 2009-12-15 | 2010-08-25 | 甘肃海林中科科技股份有限公司 | Combined bearing for axle main speed reducer |
| CN201575061U (en) * | 2009-12-07 | 2010-09-08 | 瓦房店轴承集团有限责任公司 | Self-pretightening double-row tapered roller bearing |
-
2013
- 2013-12-20 CN CN201310708979.3A patent/CN103742531A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200981502Y (en) * | 2006-12-03 | 2007-11-28 | 合肥车桥有限责任公司 | Rear axle main reducing gear assembly for MPV/SUV vehicle |
| CN201096184Y (en) * | 2007-09-08 | 2008-08-06 | 辽宁曙光汽车集团股份有限公司 | Main reducing gear assembly automobile drive bridge assembly for establishing bearing pretightening |
| CN201575061U (en) * | 2009-12-07 | 2010-09-08 | 瓦房店轴承集团有限责任公司 | Self-pretightening double-row tapered roller bearing |
| CN201561050U (en) * | 2009-12-15 | 2010-08-25 | 甘肃海林中科科技股份有限公司 | Combined bearing for axle main speed reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140423 |