CN204253592U - Air-conditioning mute precision bearing - Google Patents
Air-conditioning mute precision bearing Download PDFInfo
- Publication number
- CN204253592U CN204253592U CN201420667815.0U CN201420667815U CN204253592U CN 204253592 U CN204253592 U CN 204253592U CN 201420667815 U CN201420667815 U CN 201420667815U CN 204253592 U CN204253592 U CN 204253592U
- Authority
- CN
- China
- Prior art keywords
- inner ring
- lock sleeve
- outer ring
- conditioning
- tapering
- 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
Links
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
Air-conditioning mute precision bearing disclosed in the utility model, comprise inner ring, outer ring, be arranged at the ball between inner ring and outer ring, with the retainer of ball engagement, the lock sleeve coordinated with inner ring, the front end of inner ring forms some axial slits, the front end outer wall of inner ring is disposed with tapering and screw section, lock sleeve is sheathed on outside tapering, and the inwall of lock sleeve offsets with tapering and coordinates, the left-handed thread that screw section is arranged by correspondence and right-handed thread cooperation are formed, screw section is respectively arranged with the tightening nut with left hand thread engagement, the locking nut coordinated with right-handed thread, tightening nut is arranged between locking nut and lock sleeve, tightening nut and lock sleeve, locking nut all offsets cooperation.The utility model is simple and reasonable, easy to operate, locking effect better, lateral extrusion power is comparatively large, stability is higher.
Description
Technical field
The utility model relates to technical field of bearings, particularly a kind of air-conditioning mute precision bearing.
Background technique
Bearing plays parts that are fixing and reduction load friction factor in mechanical transmission course, especially extensive in mechanical field application.Usually need in air-conditioning equipment to install bearing, the core component due to air-conditioning is compressor, and compressor operationally can make a noise, and select highi degree of accuracy, the bearing of low noise reduces an Important Action of noise.During in order to improve assembling, bearing inner race is to the radial pressure of compressor rotation shaft, reach the effect increasing frictional force, idle call precision bearing supportingly can arrange a lock sleeve coordinated with inner ring usually, as disclosed in Chinese patent (Authorization Notice No. is CN203641282U) a kind of " air-conditioning precision bearing ", its structure comprises inner ring, ball and outer ring, one end of inner ring forms some axial slits, the interior ring outer wall at axial slits place forms tapered thread, the tapered thread of inner ring is bolted with lock sleeve, lock sleeve forms the fan-shaped groove running through lock sleeve outboard sidewalls, the lock sleeve of groove side forms tapped hole, the lock sleeve of the opposite side of groove forms step hole, clamping bolt is screwed onto in tapped hole through step hole.During use, first rotating shaft is inserted in inner ring through lock sleeve, then tighten lock sleeve, reduce the diameter of the inner ring at the place of being spirally connected gradually thus bearing is fastened in rotating shaft, lock sleeve tightens the clamping bolt on it again after tightening, make the pitch on lock sleeve reduce thus be fixed on the inner ring of bearing.But, the defect of above-mentioned " air-conditioning precision bearing " is: first, due to its to coordinate with rotating shaft assemble time action required step more, cause use comparatively loaded down with trivial details, inconvenient, and because clamping bolt is arranged in step hole, need by special tool when tightening operation to clamping bolt, cause Discussing Convenience relatively low; Second, be threaded owing to being between clamping bolt with lock sleeve, between lock sleeve with inner ring, when being given a shock, impacting, the trend that clamping bolt and lock sleeve can loosen, thus the squeeze pressure reduced inner ring, and then reduce the radial pressure of inner ring countershaft, cause frictional force to reduce.
Model utility content
The purpose of this utility model is defect for prior art and deficiency, provide a kind of simple and reasonable, easy to operate, locking effect better, lateral extrusion power is comparatively large, stability is higher air-conditioning mute precision bearing.
For achieving the above object, the utility model is by the following technical solutions:
Air-conditioning mute precision bearing described in the utility model, comprise inner ring, outer ring, be arranged at the ball between described inner ring and described outer ring, with the retainer of described ball engagement, the lock sleeve coordinated with described inner ring, the front end of described inner ring forms some axial slits, the front end outer wall of described inner ring is disposed with tapering and screw section, described lock sleeve is sheathed on outside described tapering, and the inwall of described lock sleeve offsets with described tapering and coordinates, the left-handed thread that described screw section is arranged by correspondence and right-handed thread cooperation are formed, described screw section is respectively arranged with the tightening nut with described left hand thread engagement, the locking nut coordinated with described right-handed thread, described tightening nut is arranged between described locking nut and described lock sleeve, described tightening nut and described lock sleeve, described locking nut all offsets cooperation.
Further, a pair dust cover is also provided with between described inner ring and described outer ring, two described dust covers are symmetricly set in the both sides of described ball, inner circumference edge and the described inner ring of described dust cover are sealed and matched, the inner circumference edge of described dust cover is circumferentially provided with oil storage tank, the outer periphery of described dust cover are fixedly connected with the inwall of described outer ring, and described dust cover close on described outer ring place and be provided with decompressing groove.
Further, the outer wall of described outer ring is circumferentially provided with two caulking grooves, is provided with plastics endless belt in two described caulking grooves, and the outer diameter of described plastics endless belt is slightly larger than the outer diameter of described outer ring.
Further, described retainer is set to nylon cages.
The beneficial effects of the utility model are: set gradually tapering and screw section by the front end outer wall at inner ring, lock sleeve is sheathed on outside tapering, the left-handed thread that screw section is arranged by correspondence and right-handed thread cooperation are formed, screw section is respectively arranged with the tightening nut with left hand thread engagement, the locking nut coordinated with right-handed thread, tightening nut is arranged between locking nut and lock sleeve, tightening nut and lock sleeve, locking nut all offsets cooperation, when the utility model to coordinate with rotating shaft install time, first rotating shaft is inserted in inner ring, turn tightening nut, tightening nut is tightened and extrudes lock sleeve, lock sleeve is synchronized with the movement under the thrust of tightening nut, now the tapering of inner ring is subject to the squeezing action of lock sleeve, under the mating reaction of some slits, make the reduced of inner ring front end, thus make the utility model be fixed in rotating shaft, after completing aforesaid operations, turn locking nut again, locking nut is offseted with tightening nut coordinate, it is identical with the tightening direction of locking nut that pine due to tightening nut moves back direction, thus tightening nut cannot be loosened, ensure that the squeeze pressure of tightening nut to lock sleeve, thus make the tapering of inner ring be in pressured state all the time, effectively ensure that the close contact of inner ring and rotating shaft.
Compared with prior art, the utility model by arranging tightening nut and locking nut respectively on screw section, only need operate tightening nut and locking nut during use, use more for convenience, and use common wrench just can operate tightening nut and locking nut, without the need to by special tool, operate Discussing Convenience higher; By arranging the contrary tightening nut of tightening direction and locking nut, stability is higher, not easily occurs to loosen, and effectively ensure that the utility model can keep normal work being given a shock, under the rugged environment such as impact.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
In Fig. 1:
1, inner ring; 2, outer ring; 3, ball; 4, retainer; 5, lock sleeve; 6, tapering; 7, screw section; 8, tightening nut; 9, locking nut; 10, dust cover; 101, oil storage tank; 102, decompressing groove; 11, slit; 12, plastics endless belt.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Air-conditioning mute precision bearing as shown in Figure 1, comprise inner ring 1, outer ring 2, be arranged at the ball 3 between inner ring 1 and outer ring 2, the retainer 4 coordinated with ball 3, the lock sleeve 5 coordinated with inner ring 1, the front end of inner ring 1 forms some axial slits 11, the front end outer wall of inner ring 1 is disposed with tapering 6 and screw section 7, lock sleeve 5 is sheathed on outside tapering 6, and the inwall of lock sleeve 5 offsets with tapering 6 and coordinates, the left-handed thread that screw section 7 is arranged by correspondence and right-handed thread cooperation are formed, screw section 7 is respectively arranged with the tightening nut 8 with left hand thread engagement, the locking nut 9 coordinated with right-handed thread, tightening nut 8 is arranged between locking nut 9 and lock sleeve 5, tightening nut 8 and lock sleeve 5, locking nut 9 all offsets cooperation.
The above forms agent structure of the present utility model.
When the utility model to coordinate with rotating shaft install time, first rotating shaft is inserted in inner ring 1, turn tightening nut 8, tightening nut 8 is tightened and extrudes lock sleeve 5, lock sleeve 5 is synchronized with the movement under the thrust of tightening nut 8, now the tapering 6 of inner ring 1 is subject to the squeezing action of lock sleeve 5, under the mating reaction of some slits 11, make the reduced of inner ring 1 front end, thus make the utility model be fixed in rotating shaft, after completing aforesaid operations, turn locking nut 9 again, locking nut 9 is offseted with tightening nut 8 coordinate, it is identical with the tightening direction of locking nut 9 that pine due to tightening nut 8 moves back direction, thus tightening nut 8 cannot be loosened, ensure that the squeeze pressure of tightening nut 8 pairs of lock sleeves 5, thus make the tapering 6 of inner ring 1 be in pressured state all the time, effectively ensure that the close contact of inner ring 1 and rotating shaft.
In order to avoid the utility model operationally the impurity such as dust enter, a pair dust cover 10 is also provided with between inner ring 1 and outer ring 2, two dust covers 10 are symmetricly set in the both sides of ball 3, inner circumference edge and the inner ring 1 of dust cover 10 are sealed and matched, the inner circumference edge of dust cover 10 is circumferentially provided with oil storage tank 101, by arranging oil storage tank 101, be convenient to storing lubricating grease or lubricant oil, both ensure that the sealing between dust cover 10 and inner ring 1, also effectively reduced between dust cover 10 and inner ring 1 because of the wearing and tearing caused that rub simultaneously.The outer periphery of dust cover 10 are fixedly connected with the inwall of outer ring 2, and dust cover 10 close on outer ring 2 place and be provided with decompressing groove 102, in order to reduce dust cover 10 radial pressure suffered when assembling.
The outer wall of outer ring 2 is circumferentially provided with two caulking grooves, article two, be provided with plastics endless belt 12 in caulking groove, the outer diameter of plastics endless belt 12 is slightly larger than the outer diameter of outer ring 2, by arranging plastics endless belt 12, effectively reduce the utility model and coordinate play when installing with bearing support, ensure that precision during installation.Retainer 4 is set to nylon cages 4, and shake less, heating value is lower.
The above is only better embodiment of the present utility model, therefore all equivalences done according to structure, feature and the principle described in the utility model patent claim change or modify, and are included in the utility model patent claim.
Claims (4)
1. air-conditioning mute precision bearing, comprise inner ring, outer ring, be arranged at the ball between described inner ring and described outer ring, with the retainer of described ball engagement, the lock sleeve coordinated with described inner ring, the front end of described inner ring forms some axial slits, it is characterized in that: the front end outer wall of described inner ring is disposed with tapering and screw section, described lock sleeve is sheathed on outside described tapering, and the inwall of described lock sleeve offsets with described tapering and coordinates, the left-handed thread that described screw section is arranged by correspondence and right-handed thread cooperation are formed, described screw section is respectively arranged with the tightening nut with described left hand thread engagement, the locking nut coordinated with described right-handed thread, described tightening nut is arranged between described locking nut and described lock sleeve, described tightening nut and described lock sleeve, described locking nut all offsets cooperation.
2. air-conditioning mute precision bearing according to claim 1, it is characterized in that: between described inner ring and described outer ring, be also provided with a pair dust cover, two described dust covers are symmetricly set in the both sides of described ball, inner circumference edge and the described inner ring of described dust cover are sealed and matched, the inner circumference edge of described dust cover is circumferentially provided with oil storage tank, the outer periphery of described dust cover are fixedly connected with the inwall of described outer ring, and described dust cover close on described outer ring place and be provided with decompressing groove.
3. air-conditioning mute precision bearing according to claim 1, it is characterized in that: the outer wall of described outer ring is circumferentially provided with two caulking grooves, article two, be provided with plastics endless belt in described caulking groove, the outer diameter of described plastics endless belt is slightly larger than the outer diameter of described outer ring.
4. air-conditioning mute precision bearing according to claim 1, is characterized in that: described retainer is set to nylon cages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420667815.0U CN204253592U (en) | 2014-11-10 | 2014-11-10 | Air-conditioning mute precision bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420667815.0U CN204253592U (en) | 2014-11-10 | 2014-11-10 | Air-conditioning mute precision bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253592U true CN204253592U (en) | 2015-04-08 |
Family
ID=52957905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420667815.0U Expired - Fee Related CN204253592U (en) | 2014-11-10 | 2014-11-10 | Air-conditioning mute precision bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204253592U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369044A (en) * | 2016-12-09 | 2017-02-01 | 瓦房店轴承集团有限责任公司 | Special-shape-structure rotor bearing |
| CN107504057A (en) * | 2017-09-15 | 2017-12-22 | 钦州学院 | Can lock shaft cylinder roller bearing |
-
2014
- 2014-11-10 CN CN201420667815.0U patent/CN204253592U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369044A (en) * | 2016-12-09 | 2017-02-01 | 瓦房店轴承集团有限责任公司 | Special-shape-structure rotor bearing |
| CN107504057A (en) * | 2017-09-15 | 2017-12-22 | 钦州学院 | Can lock shaft cylinder roller bearing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106939916B (en) | Nut for bearing installation | |
| CN204253592U (en) | Air-conditioning mute precision bearing | |
| CN201554715U (en) | Hydraulic cylinder with split threaded guide sleeve | |
| CN101793290B (en) | Combined bearing of radial roller and axially thrust conical roller | |
| CN102182754A (en) | Bidirectional angular contact thrust ball bearing assembly | |
| CN104653623A (en) | Full rolling body inner integral ball bearing and manufacturing method thereof | |
| CN204572992U (en) | With the combination bearing of ball screw | |
| CN205089803U (en) | Biserial aligning roller combination bearing of adjustable play | |
| CN204572991U (en) | A kind of inner circulation type ball screw pair | |
| CN203926773U (en) | One can auto-compensation associated sealing arrangement for bearings | |
| CN204610558U (en) | A kind of two flange linear bearing assembly | |
| CN204025394U (en) | The novel agricultural machinery bearing of usheing to seat | |
| CA2522434A1 (en) | Method of adjusting backlash in a down hole bearing assembly | |
| CN206874627U (en) | A kind of nut for bearing installation | |
| CN202091354U (en) | Double direction angular contact thrust ball bearing assembly | |
| CN103080580A (en) | Friction device for a bearing assembly, bearing and bearing assembly comprising such a friction device | |
| CN211901308U (en) | Slewing bearing with high-efficient leak protection function | |
| CN202115573U (en) | Worm and gear transmission device in power-assisted steering system | |
| CN211623952U (en) | Deep groove ball bearing for textile machinery | |
| CN110821954A (en) | Motorcycle axle sleeve of reducible friction | |
| CN205101417U (en) | Bearing axial pretensioning means | |
| CN221983966U (en) | Assembling structure of drill chuck | |
| CN202510567U (en) | Closely connected bearing | |
| CN204610559U (en) | A kind of extended type linear bearing assembly | |
| CN219711715U (en) | Main shaft bearing locking structure of hydraulic motor |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20191110 |