CN205315517U

CN205315517U - Bearing connection structure among speed change mechanism

Info

Publication number: CN205315517U
Application number: CN201520999408.4U
Authority: CN
Inventors: 伍怀秋
Original assignee: CHONGQING CHANGXING INDUSTRIAL Co Ltd
Current assignee: CHONGQING CHANGXING INDUSTRIAL Co Ltd
Priority date: 2015-12-04
Filing date: 2015-12-04
Publication date: 2016-06-15
Anticipated expiration: 2025-12-04

Abstract

The utility model discloses a bearing connection structure among speed change mechanism, including antifriction bearing, bearing housing, bush, the bearing housing both sides be the counter bore, the middle part is the through -hole, diameter of hole is bigger than antifriction bearing's inner circle external diameter, antifriction bearing installs in the counter bore of bearing housing both sides, counter bore size and antifriction bearing clearance fit, antifriction bearing's outer lane is pasted tightly with the terminal surface of bearing housing counter bore, the bush is installed in the through -hole of bearing housing, the little clearance fit of through -hole of bush and bearing housing. Since the technical scheme is used, the utility model has the advantages of as follows: it is unlikely to to result in antifriction bearing to take place the jamming phenomenon to be out of shape during the interior terminal surface atress of terminal surface, be out of shape based on unanimous during the inboard atress of bearing terminal surface, it is little that the bright bearing of rotation receives axial variable load lotus in the use, is favorable to improving the life of bearing.

Description

Bearing jointing structure in a kind of speed change mechanism

Technical field

The utility model relates to field of bearings, particularly the bearing jointing structure in a kind of speed change mechanism.

Background technology

In bearing assemble field, usually when the multiple bearing of employing, bearing housing need to be added, and now hole running fit in hole running fit in housing washer and bearing housing, another side housing washer and bearing housing. Above-mentioned technology exists following not enough:

(1) during this kind of state when end force is excessive, rolling bearing can be out of shape because of strength, and now bearing must have catching phenomenon.

(2) owing to being that inner ring is subject to power must cause having slight card stagnant, cause rotation not flexible.

(3) bearing inner ring is by positive pressure, causes in rotation process not steady, affects the work-ing life of bearing.

Practical novel content

The bearing jointing structure that the purpose of this utility model is just to provide in a kind of speed change mechanism, it is to increase the security of bearing; Improve the work-ing life of bearing; Improve the handiness that bearing rotates.

The purpose of this utility model is realized by such technical scheme: the bearing jointing structure in a kind of speed change mechanism, comprise rolling bearing, bearing housing, lining, described bearing housing both sides for heavy hole, middle part be through hole, through-hole diameter is bigger than the inner ring external diameter of rolling bearing, rolling bearing is arranged in heavy hole, bearing housing both sides, the end face in heavy hole size and the heavy hole of rolling bearing running fit, the outer ring of rolling bearing and bearing housing is adjacent to; Described lining is arranged in the through hole of bearing housing, and lining coordinates with the through hole small?gap suture of bearing housing.

Further, described lining outer face is provided with chamfering.

Preferably, described lining internal diameter 0.05-2.0mm bigger than rolling bearing internal diameter.

Preferably, described Outer Diameter of lining 0.05-1.0mm less of through-hole aperture.

Owing to have employed technique scheme, the utility model has following advantage:

1, end face inner face is unlikely to cause rolling bearing generation catching phenomenon by distortion during power;

2, by being out of shape based on unanimously, in use rotating bright bearing and be subject to axial variable load not quite, be conducive to improving the work-ing life of bearing during power inside bearing face;

Summary, the utility model design is ingenious, and structure is simple, dependable performance.

Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or can be instructed from practice of the present utility model. Target of the present utility model and other advantages can be realized by specification sheets below and claim book and be obtained.

Accompanying drawing explanation

Accompanying drawing of the present utility model is described as follows.

Fig. 1 is the utility model structural representation;

Fig. 2 rolling bearing structure schematic diagram;

Fig. 3 bearing housing structure schematic diagram;

Fig. 4 bush structure schematic diagram.

Embodiment

Below in conjunction with drawings and Examples, the utility model is described in further detail.

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, bearing jointing structure in a kind of speed change mechanism of the present embodiment, comprise rolling bearing 1, bearing housing 2, lining 3, described bearing housing 2 both sides for heavy hole 2a and heavy hole 2c, middle part be through hole 2b, the inner ring 1c external diameter of through hole 2b diameter ratio rolling bearing 1 is big, rolling bearing 1 is arranged in the heavy hole 2a and heavy hole 2c of bearing housing 2 both sides, the size of heavy hole 2a and heavy hole 2c and rolling bearing 1 running fit, end face 2d, 2e of the outer ring 1a of rolling bearing 1 and the heavy hole 2a of bearing housing 2 and heavy hole 2c are adjacent to; Described lining 3 is arranged in the through hole 2b of bearing housing 2, and lining 3 coordinates with the through hole 2b small?gap suture of bearing housing 2; Wherein rolling bearing 1 is arranged in heavy hole 2a and 2c in bearing housing 2 both sides, wherein rolling bearing 1 external diameter 1a coordinates with bearing housing 2a, 2b aperture, its tolerance on fit is coordinate between gap, rolling bearing 1 end face 1b and bearing housing 2 liang heavy hole end surface 2d, 2e are adjacent to, and wherein lining 3 both ends of the surface 3a, 3c coordinate with bearing housing 2 both ends of the surface 2d, 2e distance small?gap suture; After lining 3 both ends of the surface chamfering, diameter 3a, 3c are more smaller than rolling bearing 1 inner ring end face 1c; 3d 0.05-2.0mm bigger than rolling bearing internal diameter 1d in hole in lining 3, described lining 3 external diameter 0.05-1.0mm less of through hole 2b aperture.

During use when rolling bearing 1 inner ring 1c is by power, rolling bearing 1 must produce distortion, during as being out of shape little there is gap in lining 3 both ends of the surface 3a, 3c and rolling bearing 1 both ends of the surface, when being out of shape bigger, lining 3 both ends of the surface 3a, 3c contact with rolling bearing 1 both ends of the surface, play a supporting role, ensure that rolling bearing 1 normally runs.

Usual rolling bearing 1 does not add lining 3 when installing with bearing housing 2, now adds lining 3, improves stationarity when rolling bearing 1 rotates, improve the work-ing life of rolling bearing 1 simultaneously.

What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although the utility model being described in detail with reference to better embodiment, it will be understood by those within the art that, the technical solution of the utility model can be modified or equivalent replacement, and not departing from objective and the scope of the technical program, it all should be encompassed in the middle of right of the present utility model.

Claims

1. the bearing jointing structure in a speed change mechanism, comprise rolling bearing, bearing housing, lining, it is characterized in that: described bearing housing both sides for heavy hole, middle part be through hole, through-hole diameter is bigger than the inner ring external diameter of rolling bearing, rolling bearing is arranged in heavy hole, bearing housing both sides, heavy hole size and rolling bearing running fit, rolling bearing outer ring and bearing housing sink the end face in hole and be adjacent to; Described lining is arranged in the through hole of bearing housing, and lining coordinates with the through hole small?gap suture of bearing housing.

2. the bearing jointing structure in a kind of speed change mechanism as claimed in claim 1, it is characterised in that: described lining outer face is provided with chamfering.

3. the bearing jointing structure in a kind of speed change mechanism as claimed in claim 1, it is characterised in that: described lining internal diameter 0.05-2.0mm bigger than rolling bearing internal diameter.

4. the bearing jointing structure in a kind of speed change mechanism as claimed in claim 1, it is characterised in that: described Outer Diameter of lining 0.05-1.0mm less of through-hole aperture.