CN207701598U - Resist the rolling bearing of false Bu Shi impressions - Google Patents

Abstract

The utility model discloses a kind of rolling bearings for resisting false Bu Shi impressions, have bearing race and rolling element, raceway of the setting for the rolling element on the inner side end of the bearing race.According to the utility model, the raceway has interim raceway and work raceway, when the rolling bearing is in first state so that the rolling element and the interim raceway contact, when the rolling bearing is in the second state so that the rolling element and the work raceway contact.

Description

Resist the rolling bearing of false Bu Shi impressions

Technical field

The utility model is related to a kind of rolling bearings for resisting false Bu Shi impressions, have bearing race and rolling element, Raceway of the setting for the rolling element on the inner side end of the bearing race.

Background technology

Using rolling bearing, the especially device of deep groove ball bearing or angular contact ball bearing, in transport or storing process by Different degrees of false Bu Shi impressions are will produce in vibration, thus damage the surface of bearing race raceway and rolling element, are being assembled Bearing noise can be caused when use, and influence bearing service life.Existing solution is to select special lubricating grease, to axis It holds and carries out suitable axial pretightening, the measures of grade are fixed in countershaft in transportational process.But these schemes all cannot be from basic Upper to solve the problems, such as, false Bu Shi impressions still have, and raceway working surface and rolling element surface still can be damaged, and still can be gone out Existing bearing noise simultaneously influences bearing service life.

Utility model content

Therefore, the technical problem to be solved by the utility model is to provide a kind of improved rolling bearings, it can be solved Above-mentioned defect in the prior art preferably avoids the influence of false Bu Shi impressions.

According to the utility model by a kind of for resisting the rolling bearing of false Bu Shi impressions to solve, which has Bearing race and rolling element, raceway of the setting for the rolling element on the inner side end of the bearing race.It is new according to this practicality Type, raceway has interim raceway and work raceway, when rolling bearing is in first state so that rolling element and the interim rolling Road contacts, when rolling bearing is in the second state so that rolling element and work raceway contact.Due to having distinguished rolling bearing Different states, and raceway of the rolling element respectively with different designs under different conditions is correspondingly enable to be in contact, from And it can overcome single raceway that cannot meet stateful technical problem.A preferred implementation side according to the present utility model Formula, first state refer to state in which when bearing is transported, and state in which when the second state refers to bearing working.Cause This, the rolling element of rolling bearing, with interim raceway, is especially only in contact with interim raceway, after the completion of being assembled when transported When in running order, the rolling element and work raceway are especially only in contact with work raceway, so as to avoid the shape in transport At false Bu Shi impressions influence bearing working when rolling surface, and therefore avoid noise that bearing generates at work and by This improves the service life of bearing.

Preferred embodiment according to the present utility model, interim raceway have different surface roughnesses from work raceway. Since interim raceway and work raceway undertake different functions respectively, it is possible to different surfaces be arranged according to respective demand Parameter.Other preferred embodiment according to the present utility model, interim raceway can have different raceways close from work raceway It is right.Here, the adaptation of raceway refers to the pressing degree of raceway and rolling element.The generations of false Bu Shi impressions and raceway Adaptation is related, rolling element and interim raceway contact in transport or storing process, due to interim raceway when equipment works not It works, therefore the degree that rolling element generates false Bu Shi impressions can be kept most light with the adaptation of arbitrarily devised interim raceway, with This protection rolling element.

Other preferred embodiment according to the present utility model, the minimum point of interim raceway is less than interim raceway and work The tie point of raceway, to form a degree of spill on interim raceway, therefore in rolling element and interim raceway contact, It will not be rolled on work raceway, to ensure that the protection to the raceway that works in a non-operative state.Similarly, work raceway Minimum point also can be less than interim raceway with work raceway tie point, to work raceway on formed spill design, because This will not be rolled to when rolling element is with work raceway contact on interim raceway.

Other preferred embodiment according to the present utility model, raceway also has to be rolled for connecting interim raceway and work The transition raceway in road, especially the transition raceway of linear, to by the interim raceway of special designing can by interim raceway and Work raceway is preferably separated by, and will not be touched in addition for ensureing rolling element when being rolled on interim raceway or work raceway Raceway.Preferably, the minimum point of interim raceway is less than the tie point of interim raceway and transition raceway；Also it is preferred that The minimum point of work raceway is less than the tie point of interim raceway and transition raceway.Therefore, it is possible in interim raceway and/or work rolling Spill design is formed on road, to which another rolling will not be touched when ensure that rolling element rolls on a raceway wherein Road.

Other preferred embodiment according to the present utility model is equipped with the O shapes for compressing bearing race on bearing race Circle.After the completion of bearing is mounted, in transport or storing process, bearing inner race and assembled shaft such as close-fitting merging are axially located In assembled shaft, then bearing outer ring is axially positioned in bearing block temporarily by O-ring.Vice versa, i.e. bearing outer ring quilt It is a tight fit in bearing block, then bearing inner race is fixed by O-ring.It is advance in bearing outer ring right end face in transportational process Arrange preloading spring, baffle ring and lock-screw, preloading spring is in relaxation state, rolling element and interim raceway contact at this time. After transporting terminal installation, by torque spanner, lock-screw is adjusted, bearing outer ring is adjusted to suitable position, and provide Suitable axial pre tightening force so that rolling element and work raceway contact.

Compared with prior art, the utility model, which can completely avoid, there are false Bu Shi impressions on work raceway, solve The false Bu Shi impressions problem generated in equipment conveying or storing process that frequently encounters at present, protects bearing working Raceway and rolling element eliminate the bearing noise caused by false Bu Shi impressions, improve bearing service life.

Description of the drawings

The feature of the utility model is elaborated by attached drawing combination preferred embodiments of the present invention below.It is attached Figure is：

Fig. 1 a：Ball bearing under travel position；

Fig. 1 b：Ball bearing in the operating condition；

Fig. 2：The bearing race of ball bearing according to first embodiment；

Fig. 3：According to the bearing race of the ball bearing of second embodiment.

Specific implementation mode

The sectional view of ball bearing according to the present utility model is shown in Fig. 1 a and Fig. 1 b.It is according to the present utility model Ball bearing includes outer ring 10, inner ring 20, rolling element 30 and retainer 40, wherein be arranged on the radial end face of outer ring 10 recessed Slot accommodates O-shaped rubber ring 50 in the groove.Rolling of the setting for rolling element 30 on the inner side end of outer ring 10 and inner ring 20 Dynamic face.Rolling surface is divided into interim raceway a, excessive raceway b and work raceway c by preferred embodiment according to the present utility model. When ball bearing is in travel position, rolling element 30 is only contacted with interim raceway a；And when ball bearing is in running order When, rolling element 30 is only contacted with work raceway c.

Fig. 1 a show the travel position of ball bearing.After the completion of the ball bearing is assembled, inner ring 20 and assembled shaft Close-fitting merging is axially positioned in the assembled shaft, and in outer ring, 10 right end face arranges spring, baffle ring and lock-screw, outer ring in advance 10 are axially positioned in bearing block temporarily by O-ring 50.Preloading spring is in relaxation state at this time, rolling element 30 and interim Raceway a contacts.

Fig. 1 b show the working condition of ball bearing.It is transporting to after destination, by torque spanner, is adjusting locking screw Nail, by outer ring 10, (direction in figure) is adjusted to suitable position (working condition) to the left, and provides suitable axial pre tightening force.This When, rolling element 30 is contacted with work raceway b.

Fig. 2 shows the sectional views of the inner ring 20 of ball bearing shown in Fig. 1.Inner ring shown in fig. 2 is according to this One preferred embodiment of utility model, wherein rolling surface is divided into interim raceway a, excessive raceway b and work raceway c.Its In, interim raceway a have entire rolling surface minimum point, in fig. 2 use dashed lines labeled, i.e., the rolling surface of interim raceway it is minimum Point is less than excessive raceway and work raceway, therefore interim raceway a and excessive raceway b forms an approximation " groove ", so that Rolling element 30 will not be rolled to when transported on work raceway c easily.

Fig. 3 shows another preferred embodiment of inner ring according to the present utility model.With the difference of embodiment shown in Fig. 2 It is, work raceway c and interim raceway a is symmetrical about excessive raceway b, i.e., shown in dotted line, the minimum point and work of interim raceway a The minimum point for making raceway c is below excessive raceway b planes, recessed to be respectively formed in interim raceway a and in work raceway c Shape, therefore rolling element 30 will not be rolled to when transported on work raceway c, and when rolling element 30 will not roll at work Onto interim raceway a.

Although being illustratively described possible embodiment in the above description, it should be appreciated that arrive, still through institute The variation of a large amount of embodiments of combination of the technical characteristic and embodiment that are readily apparent that with the presence of known and technical staff.In addition It should also be understood that illustrative embodiment, as just an example, this embodiment never limits this in any form Protection domain, application and the construction of invention.It is more to provide one kind for converting at least to technical staff by preceding description The technological guidance of one illustrative embodiments, wherein without departing from the protection domain of claims, can carry out each Kind change, especially with respect to the component function and structure in terms of change.

Claims (10)

1. a kind of rolling bearing resisting false Bu Shi impressions, has bearing race and rolling element, in the inner side end of the bearing race Raceway of the upper setting for the rolling element, which is characterized in that the raceway has interim raceway and work raceway, in the rolling When dynamic bearing is in first state so that the rolling element and the interim raceway contact are in second in the rolling bearing When state so that the rolling element and the work raceway contact.

2. rolling bearing according to claim 1, which is characterized in that the first state refers to that the rolling bearing is transported State in which when defeated.

3. rolling bearing according to claim 1, which is characterized in that second state refers to the rolling bearing work When state in which.

4. rolling bearing according to claim 1, which is characterized in that the interim raceway has not with the work raceway Same surface roughness.

5. rolling bearing according to claim 1, which is characterized in that the interim raceway has not with the work raceway Same raceway adaptation.

6. rolling bearing according to any one of claim 1 to 5, which is characterized in that the minimum point of the interim raceway Less than the tie point of the interim raceway and the work raceway.

7. rolling bearing according to claim 1, which is characterized in that the raceway also has for connecting the interim rolling The transition raceway in road and the work raceway.

8. rolling bearing according to claim 7, which is characterized in that the minimum point of the interim raceway is interim less than described The tie point of raceway and the transition raceway.

9. rolling bearing according to claim 8, which is characterized in that the minimum point of the work raceway is interim less than described The tie point of raceway and the transition raceway.

10. rolling bearing according to claim 1, which is characterized in that be equipped on the bearing race described for compressing The O-ring of bearing race.