CN207333461U - A kind of bearing chamber structure for preventing outer race of bearing from skid - Google Patents
A kind of bearing chamber structure for preventing outer race of bearing from skid Download PDFInfo
- Publication number
- CN207333461U CN207333461U CN201721250438.0U CN201721250438U CN207333461U CN 207333461 U CN207333461 U CN 207333461U CN 201721250438 U CN201721250438 U CN 201721250438U CN 207333461 U CN207333461 U CN 207333461U
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- bearing
- bearing chamber
- groove
- ring
- skid
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Abstract
The utility model discloses a kind of bearing chamber structure for preventing outer race of bearing from skid, including bearing chamber and the indoor bearing of bearing, the bearing chamber interior walls are equipped with groove, elastic component is installed in the groove, the elastic component protrudes from the inner wall surface of bearing chamber, gap between filled bearing outer ring and bearing chamber, and compressed be subject to bearing outer ring.The elastic component friction coefficient of the utility model is higher than metal, therefore increasing a compressed O-ring in bearing chamber can prevent bearing from skidding in bearing chamber.This programme can be suitable for any bearing, and the bearing mounting means of any clearance fit, particularly the less bearing of width;And solve the problems, such as bearing skidding under the premise of the intensity of no reduction bearing, improve the service life of bearing.
Description
Technical field
Bearing is the utility model is related to, more particularly to a kind of bearing chamber structure for preventing outer race of bearing from skid.
Background technology
In the rotation body mechanism using bearings, bearing and bearing chamber generally use clearance fit.Clearance fit is
In order to avoid bearing, operationally fever expansion is stuck in bearing chamber.But when bearing operation caloric value is relatively low, bearing and axis
It is relatively large to hold room fit clearance, and bearing and bearing chamber surface roughness are all relatively low, and friction coefficient is smaller, and bearing just has can
It can skid in bearing chamber, the phenomenon of skidding is easier to appear at a high speed on big bearing, and bearing, which skids, to cause bearing life to drop
Low risk.
Existing solution is to machined O-ring groove in bearing outer ring, and adds O-ring, due to O-ring have it is certain
Elasticity, can make up the fit clearance of bearing and bearing chamber.So as to avoid bearing from skidding inside bearing chamber.The prior art lacks
Point：First, O-ring groove, the intensity of the relatively low bearing outer ring of meeting are increased in bearing outer ring.Secondly, some bearings have no idea to increase
Add groove, such as thrust bearing.Finally, it is this that the standard variety that Bearing Factory provides at present only has few class bearing to have.
Utility model content
The utility model aim is：A kind of bearing chamber structure for preventing outer race of bearing from skid is provided, is solved because groove drops
The problem of low bearing outer ring intensity, improve applicability.
The technical solution of the utility model is：
A kind of bearing chamber structure for preventing outer race of bearing from skid, including bearing chamber and the indoor bearing of bearing, the bearing
Chamber interior walls are equipped with groove, and elastic component is provided with the groove, and the elastic component protrudes from the inner wall surface of bearing chamber, fills axis
Gap between bearing outer-ring and bearing chamber, and compressed be subject to bearing outer ring.
Preferably, the groove is O shape grooves, is adopted along the inner wall surface of bearing chamber circumferentially around setting, the elastic component
Use O-ring.
Preferably, the groove is arcuate furrow, and one is used circumferentially around setting, elastic component along the inner wall surface of bearing chamber
Section rubber ring.
Preferably, the quantity of the groove and elastic component is multiple.
Preferably, the O-ring groove ensures that O-ring compression ratio is 15%- according to the requirement lower limit design of static seal
20%, trench fill rate 80%.
Preferably, the inner ring of the bearing and shaft clearance fit, set groove on the bearing guard in shaft, and install
Elastic component.
The utility model has the advantages that：
The bearing chamber structure for preventing outer race of bearing from skid of the utility model, can be suitable for any bearing, and it is any between
The bearing mounting means that gap coordinates, the particularly less bearing of width.And this programme is in the intensity premise of no reduction bearing
Under solve the problems, such as bearing skidding, improve the service life of bearing.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and embodiments：
Fig. 1 is the schematic diagram of the bearing chamber structure described in the utility model for preventing outer race of bearing from skid.
Embodiment
The utility model is used realizes the wind for preventing bearing from skidding in bearing chamber with the principle for adding O-ring same on bearing
Danger.Using traditional bearing chamber, bearing inner race is interference fitted with shaft, and bearing roller and bearing internal external circle have frictional force.Turn
When axis rotates at a high speed, bearing inner race equally rotates at a high speed, and by the frictional force of bearing roller, the rotation of inner ring can be passed to axis
Between bearing outer-ring, bearing outer ring and bearing chamber internal surface are all very smooth, frictional force very little, and bearing outer ring and bearing chamber inner ring are
Gap coordinate, by roller transmission Lai frictional force bearing outer ring will be caused to skid in bearing chamber.
The bearing chamber structure of outer race of bearing from skid is prevented as shown in Figure 1, described in the utility model, including is installed on rotation
The indoor bearing 2 of bearing chamber 1 and bearing at the end cap 4 of body mechanism, bearing chamber interior walls are equipped with O-ring groove, the O-ring ditch
O-ring 3, the gap between the O shapes type circle energy filled bearing outer ring and bearing chamber are installed, and O-ring is by bearing in groove
Outer ring and bearing chamber compression, and friction coefficient is higher than metal, therefore one compressed O-ring of increase can be prevented in bearing chamber
Only bearing skids in bearing chamber.
Suitable O-ring size is selected in design, the O-ring groove is protected according to the requirement lower limit design of static seal
Card O-ring compression ratio is 15%-20%, trench fill rate 80%.
In the specific implementation, the utility model can also add other compressible elastic components in bearing chamber.For example, plus
Enter the O-ring of one section of rubber ring rather than full circle, corresponding groove is arranged to one section of arcuate furrow.To increase anti-skidding reliability,
Multiple grooves and rubber ring can also be set.
If when bearing inner race is with shaft clearance fit, groove can also be set on the bearing guard on axis, and install
Elastic component.
The embodiment of the utility model is with that can be suitable for any bearing, and the bearing mounting means of any clearance fit.It is special
It is not the less bearing of width.And this programme solves the problems, such as bearing skidding under the premise of the intensity of no reduction bearing,
Improve the service life of bearing.
Above-described embodiment is only the technical concepts and features for illustrating the utility model, and its object is to allow be familiar with technique
People can understand the content of the utility model and implement according to this, the scope of protection of the utility model can not be limited with this.It is all
The modification done according to the Spirit Essence of the utility model main technical schemes, should all cover in the scope of protection of the utility model
Within.
Claims (6)
1. a kind of bearing chamber structure for preventing outer race of bearing from skid, including bearing chamber and the indoor bearing of bearing, it is characterised in that：
The bearing chamber interior walls are equipped with groove, and elastic component is provided with the groove, and the elastic component protrudes from the inner wall table of bearing chamber
Face, the gap between filled bearing outer ring and bearing chamber, and compressed be subject to bearing outer ring.
2. the bearing chamber structure according to claim 1 for preventing outer race of bearing from skid, it is characterised in that：The groove is O
Shape groove, O-ring is used along the inner wall surface of bearing chamber circumferentially around setting, the elastic component.
3. the bearing chamber structure according to claim 1 for preventing outer race of bearing from skid, it is characterised in that：The groove is arc
Shape groove, along the inner wall surface of bearing chamber circumferentially around setting, elastic component is rubber ring.
4. the bearing chamber structure for preventing outer race of bearing from skid according to Claims 2 or 3, it is characterised in that：The groove
Quantity with elastic component is multiple.
5. the bearing chamber structure according to claim 4 for preventing outer race of bearing from skid, it is characterised in that：The O-ring ditch
Groove ensures that O-ring compression ratio is 15%-20%, trench fill rate 80% according to the requirement lower limit design of static seal.
6. the bearing chamber structure according to claim 1 for preventing outer race of bearing from skid, it is characterised in that：The bearing it is interior
Enclose with shaft clearance fit, groove is set on the bearing guard in shaft, and elastic component is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721250438.0U CN207333461U (en) | 2017-09-27 | 2017-09-27 | A kind of bearing chamber structure for preventing outer race of bearing from skid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721250438.0U CN207333461U (en) | 2017-09-27 | 2017-09-27 | A kind of bearing chamber structure for preventing outer race of bearing from skid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207333461U true CN207333461U (en) | 2018-05-08 |
Family
ID=62370502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721250438.0U Active CN207333461U (en) | 2017-09-27 | 2017-09-27 | A kind of bearing chamber structure for preventing outer race of bearing from skid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207333461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489698A (en) * | 2017-09-27 | 2017-12-19 | 合肥巨动力系统有限公司 | A kind of bearing chamber structure for preventing outer race of bearing from skid |
-
2017
- 2017-09-27 CN CN201721250438.0U patent/CN207333461U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489698A (en) * | 2017-09-27 | 2017-12-19 | 合肥巨动力系统有限公司 | A kind of bearing chamber structure for preventing outer race of bearing from skid |
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