CN204476275U - A kind of novel cellular type elastic floating sleeve sliding bearing - Google Patents
A kind of novel cellular type elastic floating sleeve sliding bearing Download PDFInfo
- Publication number
- CN204476275U CN204476275U CN201520145142.7U CN201520145142U CN204476275U CN 204476275 U CN204476275 U CN 204476275U CN 201520145142 U CN201520145142 U CN 201520145142U CN 204476275 U CN204476275 U CN 204476275U
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- bearing
- floating
- gear wheel
- hole
- floating bushing
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Abstract
The utility model relates to a kind of novel cellular type elastic floating sleeve sliding bearing, and it is formed primarily of gear wheel inner chamber, floating bushing, gear wheel axle journal.It is secondary that gear wheel inner chamber and floating bushing form external friction, and floating bushing and gear wheel axle journal form interior friction pair; Get out vertically can store for lubricant medium and the through hole of flowing at the end face of floating ring bearing, described via arrangement is circumferentially symmetrical, and through hole adopts chamfered transition on the limit that floating ring bearing surfaces externally and internally has a common boundary.The utility model can improve the problem of the inside and outside bearing lubrication deficiency of former floating bushing; Guarantee to be lubricated fully whole floating bushing is inside and outside, reduce bearing temperature, reduce bearing wear speed, have the effect of vibration damping, heat radiation simultaneously, extend the application life of bearing.
Description
Technical field
The utility model relates to a kind of novel cellular type elastic floating sleeve sliding bearing, belongs to a kind of device of oil, natural gas drilling equipment.
Background technology
Rock bit is the main tool of oil drilling, almost directly depends on the life-span of bit bearing its application life.So as first important component part of rotary drill, the application life and the functional reliability that how to improve rock bit bearing are current problem demanding prompt solutions.Floating bushing lubricating bearings is a kind of more special bearing arrangement, has a floating bushing in the middle of its gear wheel inner chamber and gear wheel axle journal, free to rotate under the effect of frictional force.After primitive axis holds and is divided into two by floating ring bearing, owing to adding a friction pair, so add the contact area of rubbing surface, but owing to reducing the relative sliding velocity between rubbing surface, thus reduce the frictional power loss of bearing.
In rock bit bearing structure, current oil supply system is many provides bearing lubrication lubricant medium used by bearing pin central pore structure, such inner bearing directly contacts with lubricant medium, outer bearing is owing to being separated by floating bushing, lubricant medium can only enter outer bearing contact zone from floating bushing end, if centre bore is for shortage of oil, pressure is inadequate, then make the lubricant medium skewness of outer bearing and inner bearing, sufficient lubrication cannot be ensured, simultaneously due to the fricative heat in the course of work, the boundary effect of vibration and floating ring bearing all have impact on the overall performance of bearing.Therefore, the utility model in order to reduce bearing friction, strengthen heat radiation, slowing down vibration, minimizing edge effect, designing novelly provides the through hole of the lubrication oil supply between inside and outside bearing, can reach and make cellular type elastic floating sleeve sliding bearing have heat radiation, vibration damping, slows down the effect of boundary effect.
Summary of the invention
The purpose of this utility model is to provide a kind of novel via hole formula elastic floating sleeve sliding bearing, can solve in some structures preferably, the problem of the lack of lubrication of bearing, floating bushing sliding bearing be had to the effect of vibration damping, heat radiation, minimizing boundary effect simultaneously.
The utility model solves the technical scheme that its technical problem adopts:
A kind of novel floating bushing sliding bearing of the utility model, is formed primarily of gear wheel inner chamber, floating bushing, gear wheel axle journal.It is secondary that gear wheel inner chamber and floating bushing form external friction, and floating bushing and gear wheel axle journal form interior friction pair; Get out vertically can store for lubricant medium and the through hole of flowing at the end face of floating ring bearing, described via arrangement is circumferentially symmetrical, and described through hole adopts chamfered transition on the limit that floating ring bearing surfaces externally and internally has a common boundary.Floating bushing end face adds some through holes running through whole floating bushing vertically, this through hole both can store lubrication oil or lubricating grease, lubricant medium can be made again to flow to interior outer bearing through through hole, and the method effectively can improve the overall performance of bearing, extends its life-span.
The utility model is on floating bushing end face, circumferentially be arranged symmetrically with and can store for lubricant medium and the through hole of flowing, the size of this through hole, quantity and position can be determined flexibly according to floating bushing diameter, working environment etc., hole is comparatively large or quantity is too much, then internally, the supporting capacity impact of outer bearing is larger, less or the quantity in hole is crossed lubricant medium at least and to be stored and flowing falls flat, and hole adopts chamfered transition at floating bushing end face.When bearing rotary, lubricant medium can by this through hole flow to lubricant medium comparatively lack in or beyond friction pair between bearing, improve the lubricant effect of bearing; Meanwhile, the flowing of lubricant medium can be taken away because of fricative heat; And the vibration of work generation can be cushioned in motion process with the structure of through hole, there is damping effect; The chamfering structure of end and through-core hole have the effect reducing the boundary effect that stress is concentrated.Reduce the rate of wear of bearing on the whole, extend the application life of floating bushing lubricating bearings.
The utility model has the advantages that: the problem of the inside and outside bearing lubrication deficiency of former floating bushing because structure or volume restriction produce can be improved, guarantee to be lubricated fully whole floating bushing is inside and outside, reduce bearing temperature, reduce bearing wear speed, there is the effect of vibration damping, heat radiation simultaneously, extend the application life of bearing.
Accompanying drawing explanation
Fig. 1 is the assembly structure schematic diagram of a kind of novel floating bushing sliding bearing of the utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is cellular type floating ring bearing cross-sectional view of the present utility model;
Fig. 4 is the B-B sectional view of Fig. 3.
In figure: 1. gear wheel inner chamber; 2. external friction is secondary; 3. floating bushing; 4. friction pair in; 5. gear wheel axle journal; 6. through hole.
Detailed description of the invention
Below by embodiment also by reference to the accompanying drawings, the utility model is described in further detail:
Shown in Fig. 1, Fig. 2, Fig. 3, a kind of novel via hole formula of the utility model elastic floating sleeve sliding bearing, is formed primarily of gear wheel inner chamber 1, floating bushing 3, gear wheel axle journal 5, through hole 6.Gear wheel inner chamber 1 and floating bushing 3 form external friction pair 2, and floating bushing 3 and gear wheel axle journal 5 form interior friction pair 4; Get out vertically can store for lubricant medium and the through hole 6 of flowing at the end face of floating ring bearing, described through hole 6 is arranged as circumferentially symmetrical, and described through hole 6 adopts chamfered transition on the limit that floating ring bearing surfaces externally and internally has a common boundary.Floating bushing end face adds some through holes running through whole floating bushing vertically, and this through hole 6 both can store lubrication oil or lubricating grease, and lubricant medium can be made again to flow to interior outer bearing through through hole 6.
When bearing rotary, lubricant medium can flow to friction pair between inside and outside bearing that lubricant medium comparatively lacks by through hole 6, improve the lubricant effect of bearing on the one hand, the flowing of lubricant medium can be taken away because of fricative heat on the other hand, the vibration of work generation can be cushioned in motion process with through hole 6 structure itself simultaneously, have the effect of vibration damping, simultaneously the chamfering structure of end and through-core hole have the boundary effect effect reducing stress and concentrate.Reduce the rate of wear of bearing on the whole, extend the application life of floating bushing sliding bearing.
In fig. 2, lubricant medium enters external friction pair 2 at interior friction pair 4, if do not have enough greases and pressure to make lubricant medium enter external friction pair 2 from floating bushing 3 end face, then external friction pair 2 will can not get good lubrication.Therefore, design of the present utility model, at the end face circumferentially symmetrical through hole 6 storing for lubricant medium and flow of floating bushing 3, can easily for inside and outside bearing provides lubricant medium, for being uniformly distributed of lubricant medium provides quick and passage easily, inside and outside like this friction pair can be lubricated fully, to improve the lubricating status of friction pair, pass through structural analysis simultaneously, this structure design is conducive to floating ring bearing 3 vibration damping in the course of the work, heat radiation, reduction edge effect, improves service behaviour and the application life of whole floating ring bearing.
In figure 3, through hole 6 position on floating bushing 3 is circumferentially symmetrical, and number of openings and size are determined according to floating bushing diameter and working environment etc.
Claims (1)
1. a novel via hole formula elastic floating sleeve sliding bearing, form primarily of gear wheel inner chamber (1), floating bushing (3), gear wheel axle journal (5), through hole (6), it is characterized in that, gear wheel inner chamber (1) and floating bushing (3) form external friction pair (2), friction pair in floating bushing (3) and gear wheel axle journal (5) form; Get out vertically can store for lubricant medium and the through hole (6) of flowing at the end face of floating ring bearing, described through hole (6) is arranged as circumferentially symmetrical, and through hole (6) adopts chamfered transition on the limit that floating ring bearing surfaces externally and internally has a common boundary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520145142.7U CN204476275U (en) | 2015-03-16 | 2015-03-16 | A kind of novel cellular type elastic floating sleeve sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520145142.7U CN204476275U (en) | 2015-03-16 | 2015-03-16 | A kind of novel cellular type elastic floating sleeve sliding bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204476275U true CN204476275U (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520145142.7U Expired - Fee Related CN204476275U (en) | 2015-03-16 | 2015-03-16 | A kind of novel cellular type elastic floating sleeve sliding bearing |
Country Status (1)
| Country | Link |
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| CN (1) | CN204476275U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206608A (en) * | 2019-07-08 | 2019-09-06 | 杭州新坐标科技股份有限公司 | A kind of roller rock arm with oil storage function |
-
2015
- 2015-03-16 CN CN201520145142.7U patent/CN204476275U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206608A (en) * | 2019-07-08 | 2019-09-06 | 杭州新坐标科技股份有限公司 | A kind of roller rock arm with oil storage function |
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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: 20150715 Termination date: 20160316 |
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| CF01 | Termination of patent right due to non-payment of annual fee |