CN201289580Y - Fixed mechanism for regulating bearing eccentricity - Google Patents
Fixed mechanism for regulating bearing eccentricity Download PDFInfo
- Publication number
- CN201289580Y CN201289580Y CNU2008202125552U CN200820212555U CN201289580Y CN 201289580 Y CN201289580 Y CN 201289580Y CN U2008202125552 U CNU2008202125552 U CN U2008202125552U CN 200820212555 U CN200820212555 U CN 200820212555U CN 201289580 Y CN201289580 Y CN 201289580Y
- Authority
- CN
- China
- Prior art keywords
- bearing
- axle collar
- stationary shaft
- eccentric
- shaft
- 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 - Lifetime
Links
Images
Abstract
The utility model discloses a fixing mechanism for eccentric bearing adjustment, which comprises a bearing chock, a first fixing shaft, a second fixing shaft, a first bearing, a second bearing, at least a detachable fastener, and an eccentric shaft collar rotating around the first fixing shaft, wherein, the first and the second fixing shafts are fixed with the bearing chock; the second bearing is rotationally supported on the second fixing shaft; the first bearing and the second bearing are arranged at an interval; the eccentric shaft collar is sleeved on the first fixing shaft; the first bearing is fixedly sleeved on the eccentric shaft collar; and the fastener locks the eccentric shaft collar and the first fixing shaft in the radial direction. When the space between the first and the second bearings requires to be adjusted, the eccentric adjustment can be realized through loosening the fastener and rotating the eccentric shaft collar, the fastener is locked after the completion of the adjustment, the eccentric adjustment is convenient and can be performed repeatedly, the eccentric shaft collar and the first fixing shaft are locked through the fastener, and the whole mechanism can be stably and reliably fixed.
Description
Technical field
The utility model is can carry out the bearing eccentric adjusting fixed mechanism that distance between bearings is regulated about a kind of.
Background technology
For the X ray camera chain, particularly U arm type X ray camera chain is generally used many guide rails and is led simultaneously, because the requirement of fit on, every group of bearing of guide rail need carry out eccentric adjusting, thereby according to the practical set situation, controls the actual range between two bearings.For existing bearing eccentric adjusting fixed mechanism, the installation shaft of its bearing is with respect to the mounting hole off-centre (installation shaft is connected by a screw with installed surface) of this installation shaft of assembling, when installing, installation shaft regulates eccentric distance by rotating around mounting hole, regulate the back lock-screw, make the friction force that produces between installation shaft and the installed surface stop installation shaft to be rotated by compressing.But, this kind mechanism has following shortcoming: because the eccentric adjusting of installation shaft realizes by being rotated around its eccentric mounting hole, therefore its gib screw has only one, there is very big potential safety hazard, single the friction force that screw retention only depends on its locking to produce, permanent stressed and impact under, be difficult to guarantee that installation shaft is not rotated skew after fixing and side direction is toppled.
Summary of the invention
Technical matters to be solved by this invention is, overcomes the deficiencies in the prior art, and a kind of easy to adjust, the reliable bearing eccentric adjusting of fixing-stable fixed mechanism is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of bearing eccentric adjusting fixed mechanism, comprise bearing seat, first stationary shaft, second stationary shaft, clutch shaft bearing, second bearing, dismountable at least one securing member and the eccentric axle collar that can rotate around first stationary shaft, first, two stationary shaft are all fixed with bearing seat, this second bearing is rotating to be bearing on second stationary shaft, the clutch shaft bearing and second bearing are provided with at interval, the excentric shaft ring set is on this first stationary shaft, clutch shaft bearing is solidly set on this off-centre axle collar, and securing member is radially being locked this off-centre axle collar and first stationary shaft.
The described eccentric axle collar has the threaded mounting hole that at least one radially runs through, and securing member is a threaded fastener, and securing member and mounting hole threaded engagement also hold out against the contoured surface of first stationary shaft.
The contoured surface of described first stationary shaft radially has the groove that communicates with mounting hole, and securing member holds out against the bottom land of groove.Described groove is around the axis of first stationary shaft.
Described mounting hole has at least two, and securing member is to there being at least two.
The described eccentric axle collar has step surface, and the end of first stationary shaft is provided with the stopper section of radially extending, and in the axial direction, clutch shaft bearing is positioned between step surface and the stopper section.
The described eccentric axle collar comprises first axle collar and the second less axle collar of external diameter that external diameter is bigger, and step surface is formed at the junction of first axle collar and second axle collar, and mounting hole radially runs through first axle collar, and clutch shaft bearing is solidly set on second axle collar.Described first axle collar is a hexagon.The inner ring of described second bearing is solidly set on second stationary shaft.Described first stationary shaft and second stationary shaft and same bearing seat are fixed as one.
The invention has the beneficial effects as follows, when 1) needing to regulate first and second distance between bearings, the loosening fasteners and the rotating eccentricity axle collar can be realized eccentric adjusting, clinch fastener after adjusting puts in place, eccentric adjusting is convenient, can re-adjustments, lock the eccentric axle collar and first stationary shaft by securing member, the entire mechanism fixation is reliable.2), realize the axial limiting of clutch shaft bearing is fixed by clutch shaft bearing being positioned between step surface and the stopper section.
Description of drawings
Fig. 1 is the front view of present embodiment bearing eccentric adjusting fixed mechanism;
Fig. 2 is the cut-open view of present embodiment bearing eccentric adjusting fixed mechanism;
Fig. 3 is the partial enlarged drawing at A indication place among Fig. 2;
Fig. 4 is the structural representation of the axle collar of present embodiment bearing eccentric adjusting fixed mechanism.
Embodiment
As shown in Figures 1 to 4, present embodiment bearing eccentric adjusting fixed mechanism comprises bearing seat 1, first stationary shaft 2, second stationary shaft 3, the eccentric axle collar 4, securing member 5, clutch shaft bearing 6 and second bearing 7.Bearing seat 1 fixedly installs.First stationary shaft 2 is parallel with second stationary shaft 3, and all is fixed on the bearing seat 1.First stationary shaft 2 has with securing member 5 and holds out against the contoured surface 21 that cooperates, and this contoured surface 21 radially has a circle groove 22, and this groove 22 is around the axis of this first stationary shaft 2, and the end of this first stationary shaft 2 is provided with radially extended stopper section 23.The eccentric axle collar 4 is eccentric ring bodies, it has the first bigger axle collar 41 of external diameter and the second less axle collar 42 of external diameter, the junction of this first axle collar 41 and second axle collar 42 forms step surface 43, this first axle collar 41 is provided with at least one mounting hole that radially runs through 411, and mounting hole 411 communicates with the groove 22 of first stationary shaft 2.The outline of first axle collar 41 can be for the shape that makes things convenient for instrument to regulate, as outer hexagon.The eccentric axle collar 4 is enclosed within on first stationary shaft 2 and can rotates around this first stationary shaft 2, the inner ring of clutch shaft bearing 6 is solidly set on second axle collar 42 of the eccentric axle collar 4, diametrically, clutch shaft bearing 6 is realized the axial limiting of clutch shaft bearing 6 is fixed between the stopper section 23 of the step surface 43 of the eccentric axle collar 4 and first stationary shaft 2.Securing member 5 is a threaded fastener, as holding screw.The mounting hole 411 of the eccentric axle collar 4 is a threaded mounting hole, and securing member 5 screws in threaded mounting hole 411 and holds out against the bottom land of first stationary shaft, 2 grooves 22, the eccentric axle collar 4 radially is being locked on first stationary shaft 2, thereby prevents the eccentric axle collar 4 improper rotations.The distance that second bearing 7 and clutch shaft bearing 6 is certain at interval, and the inner ring of second bearing 7 is solidly set on second stationary shaft 3, makes second bearing, 7 rotating being bearing on second stationary shaft 3.
When needing to regulate the spacing of first and second bearing 6,7, loosening fasteners 5, the rotating eccentricity axle collar 4 is regulated eccentric; After adjusting to the right place, clinch fastener 5 gets final product.
For bearing eccentric adjusting fixed mechanism, clutch shaft bearing is bearing on first stationary shaft by the eccentric axle collar is rotating, and the eccentric axle collar radially is locked on first stationary shaft by dismountable securing member, thereby the assembling that can carry out is repeatedly regulated, and easy to adjust, fixation is reliable; First stationary shaft is provided with groove, and when assembling locking, securing member directly holds out against the bottom land at groove, and therefore, the damage that locking causes can not influence the rotation that repeats of the eccentric axle collar and regulate; Because first stationary shaft and second stationary shaft all are fixed as one with same bearing seat, so the intensity of entire mechanism is good.
For bearing eccentric adjusting fixed mechanism, it can be applied in the X ray camera chain, and particularly U arm type X ray camera chain cooperates the clutch shaft bearing 6 and second bearing 7 with guide rail 8, and 8 on guide rail is installed on the body 9.Certainly, this mechanism also can be used on other not high straight-line transmitting transfer mechanism of accuracy requirement.
For bearing eccentric adjusting fixed mechanism, the inner ring of second bearing can be solidly set on second stationary shaft; Second bearing also can be bearing on second stationary shaft by another eccentric axle collar is rotating, and as described in clutch shaft bearing, promptly the clutch shaft bearing and second bearing can be regulated simultaneously, thereby reduces the processing and the installation accuracy of bearing seat and guide rail.Groove on first stationary shaft can be the whole circle around the first stationary shaft axis, also can not be a whole circle, or a plurality of arcuate furrows that have separation to be provided with; The mounting hole of the eccentric axle collar communicates with groove, and mounting hole can have one, also two or more can be arranged, corresponding, securing member also can have one or more.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. bearing eccentric adjusting fixed mechanism, comprise bearing seat, first stationary shaft, second stationary shaft, clutch shaft bearing and second bearing, first and second stationary shaft is all fixed with bearing seat, this second bearing is rotating to be bearing on second stationary shaft, the clutch shaft bearing and second bearing are provided with at interval, it is characterized in that: also comprise dismountable at least one securing member and the eccentric axle collar that can rotate around first stationary shaft, the excentric shaft ring set is on this first stationary shaft, clutch shaft bearing is solidly set on this off-centre axle collar, and securing member is radially being locked this off-centre axle collar and first stationary shaft.
2. bearing eccentric adjusting fixed mechanism according to claim 1, it is characterized in that: the described eccentric axle collar has the threaded mounting hole that at least one radially runs through, securing member is a threaded fastener, and securing member and mounting hole threaded engagement also hold out against the contoured surface of first stationary shaft.
3. bearing eccentric adjusting fixed mechanism according to claim 2, it is characterized in that: the contoured surface of described first stationary shaft radially has the groove that communicates with mounting hole, and securing member holds out against the bottom land of groove.
4. bearing eccentric adjusting fixed mechanism according to claim 3, it is characterized in that: described groove is around the axis of first stationary shaft.
5. bearing eccentric adjusting fixed mechanism according to claim 4, it is characterized in that: described mounting hole has at least two, and securing member is to there being at least two.
6. bearing eccentric adjusting fixed mechanism according to claim 3 is characterized in that: the described eccentric axle collar has step surface, and the end of first stationary shaft is provided with the stopper section of radially extending, and in the axial direction, clutch shaft bearing is positioned between step surface and the stopper section.
7. bearing eccentric adjusting fixed mechanism according to claim 6, it is characterized in that: the described eccentric axle collar comprises first axle collar and the second less axle collar of external diameter that external diameter is bigger, step surface is formed at the junction of first axle collar and second axle collar, mounting hole radially runs through first axle collar, and clutch shaft bearing is solidly set on second axle collar.
8. bearing eccentric adjusting fixed mechanism according to claim 7 is characterized in that: described first axle collar is a hexagon.
9. bearing eccentric adjusting fixed mechanism according to claim 1 is characterized in that: described first stationary shaft and second stationary shaft and same bearing seat are fixed as one.
10. according to any described bearing eccentric adjusting fixed mechanism among the claim 1-9, it is characterized in that: the inner ring of described second bearing is solidly set on second stationary shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202125552U CN201289580Y (en) | 2008-10-15 | 2008-10-15 | Fixed mechanism for regulating bearing eccentricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202125552U CN201289580Y (en) | 2008-10-15 | 2008-10-15 | Fixed mechanism for regulating bearing eccentricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201289580Y true CN201289580Y (en) | 2009-08-12 |
Family
ID=40981261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202125552U Expired - Lifetime CN201289580Y (en) | 2008-10-15 | 2008-10-15 | Fixed mechanism for regulating bearing eccentricity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201289580Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112832605A (en) * | 2019-11-22 | 2021-05-25 | 长沙普罗科环境装备有限责任公司 | Eccentric shaft fixing mechanism, vehicle door locking mechanism and vehicle |
-
2008
- 2008-10-15 CN CNU2008202125552U patent/CN201289580Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112832605A (en) * | 2019-11-22 | 2021-05-25 | 长沙普罗科环境装备有限责任公司 | Eccentric shaft fixing mechanism, vehicle door locking mechanism and vehicle |
| CN112832605B (en) * | 2019-11-22 | 2022-04-19 | 长沙普罗科环境装备有限责任公司 | Eccentric shaft fixing mechanism, vehicle door locking mechanism and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101554764B1 (en) | Epicyclic gear system with flexpins | |
| CN203189466U (en) | Axial locking device | |
| CN105805142B (en) | A kind of screw retention spacing using tooth form | |
| CN105121285B (en) | For the globe joint equipment that turbogenerator is suspended on suspension bracket or is suspended on device in turbogenerator main body | |
| US20100176601A1 (en) | Bearing arrangement for a wind turbine | |
| GB2524746A (en) | Locking apparatus for a nut | |
| CN201289580Y (en) | Fixed mechanism for regulating bearing eccentricity | |
| KR102082598B1 (en) | Installation device | |
| US20140186137A1 (en) | Geared bolt system for securing a circular saw blade | |
| JP6285209B2 (en) | Fixing mechanism | |
| CN108400676A (en) | Secondary restraint formula decelerating motor | |
| MX2010007803A (en) | Osteosynthesis device with rapid fixing means. | |
| CN103161814A (en) | Pre-tightening-force-adjustable anti-loosening rotating shaft mechanism | |
| CN107537905B (en) | A kind of bearing shell formula spinning roller base device | |
| US20190032771A1 (en) | Planetary carrier for a gearset stage of a planetary gearset, and pretensioning method | |
| CN107110252B (en) | Brake apparatus and brake-shoe | |
| CN202251479U (en) | Thin-wall shaft end supporting assembly | |
| CN201916356U (en) | Axial clearance adjusting structure of input shaft bearing | |
| CN201702170U (en) | Supporting ring | |
| CN101852244A (en) | Rotating shaft device with positioning function | |
| CN213384703U (en) | From rotating quick detach oar seat | |
| CN201373018Y (en) | Rotating shaft device capable of positioning | |
| KR20120002765U (en) | Pre load control structure of a differential bearing | |
| CN202188024U (en) | Gear box and shaft neck centering device for gear shaft of gear box | |
| CN109600016B (en) | Magnetic coupling with conical surface positioning structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090812 |
|
| CX01 | Expiry of patent term |