CN206708196U - A kind of screw bearing - Google Patents
A kind of screw bearing Download PDFInfo
- Publication number
- CN206708196U CN206708196U CN201720123128.6U CN201720123128U CN206708196U CN 206708196 U CN206708196 U CN 206708196U CN 201720123128 U CN201720123128 U CN 201720123128U CN 206708196 U CN206708196 U CN 206708196U
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- CN
- China
- Prior art keywords
- ring
- bearing
- screw
- raceway
- race
- 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
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- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000005096 rolling process Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 3
- 230000009347 mechanical transmission Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
A kind of screw bearing, including the ball screw containing screw bearing inner race Yu screw bearing outer ring, inner shield ring and outer back-up ring are the utility model is related to, the radially opposite sides of the screw bearing inner race are respectively equipped with inner shield ring and outer back-up ring；The cross section that ring-type is provided with the periphery of the screw bearing inner race is the inner-ring bearing raceway of circular arc, the cross section that the inner headed face for the outer collar members that the screw bearing outer ring is formed with inner shield ring, outer back-up ring is provided with the ring-type of the corresponding inner-ring bearing raceway is the race bearing raceway of circular arc, and some bearing balls are arranged in the raceway that the inner-ring bearing raceway is formed with race bearing raceway.Precise ball screw bearing of the present utility model solves the problems, such as the alignment error after existing screw, bearing fit, it is ensured that the running precision for the mechanical part being attached thereto, can be widely applied in the higher product of some transmission accuracy requirements.
Description
Technical field
The utility model belongs to technical field of mechanical transmission, and in particular to a kind of ball screw bearing.
Background technology
The transmission of screw mandrel screw belongs to a kind of most common transmission mechanism of mechanical transmission fields, should in screw mandrel screw transmission mechanism
In some fields, need that bearing is installed in its ball screw coordinated with screw mandrel, because bearing with screw is separately manufactured
, although being tight fit between the inner ring of bearing and ball screw, alignment error is still suffered from, it is difficult to be adapted to some biographies
In the higher product of dynamic required precision.
Utility model content
The purpose of this utility model is solve above-mentioned technical problem and provide a kind of ball screw bearing, to overcome mesh
Alignment error be present between the inner ring and ball screw of fore bearing, it is impossible to meet the application of the high-precision mechanical transmission mechanism of needs
The technical problem of occasion.
To achieve the above object, the utility model adopts the following technical scheme that：
A kind of screw bearing, including the rolling containing screw bearing inner race Yu screw bearing outer ring, inner shield ring and outer back-up ring
Pearl screw, the radially opposite sides of the screw bearing inner race are respectively equipped with inner shield ring and outer back-up ring；Outside the screw bearing inner race
The cross section that ring-type is provided with disc is the inner-ring bearing raceway of circular arc, the screw bearing outer ring and inner shield ring, outer gear
The cross section for the ring-type that the inner headed face for enclosing the outer collar members formed is provided with the corresponding inner-ring bearing raceway is the outer of circular arc
Raceway is enclosed, some bearing balls are arranged in the raceway that the inner-ring bearing raceway is formed with race bearing raceway.
The raceway is two, and interval pre-determined distance is set.
The race bearing raceway is located at the butt seam of the inner shield ring and outer back-up ring and screw bearing outer ring, institute
The interface for stating screw bearing outer ring, inner shield ring and outer back-up ring has the consistent arc for forming the race bearing raceway respectively
Shape groove.
Precise ball screw bearing of the present utility model solves the problems, such as the alignment error after existing screw, bearing fit,
The running precision for the mechanical part being attached thereto is ensure that, the higher product of some transmission accuracy requirements can be widely applied to
In.
Brief description of the drawings
Fig. 1 is the diagrammatic cross-section of screw bearing of the present utility model；
In figure：1st, screw bearing inner race；2nd, inner shield ring；3rd, screw bearing outer ring；4th, outer back-up ring；5th, bearing ball；6th, it is interior
Enclose raceway；11st, circular arc chamfering；12nd, screw hole；13rd, spiral rolling track；14th, race bearing raceway.
Embodiment
Below, substantive distinguishing features of the present utility model and advantage are further described with reference to example, but this practicality is new
Type is not limited to listed embodiment.
As shown in figure 1, a kind of screw bearing, including it is the screw bearing inner race 1 containing T shape and screw bearing outer ring 3, interior
The ball screw of back-up ring 2 and outer back-up ring 4, the screw bearing outer ring 3 are rotatably arranged at the outer screw bearing inner race 1
Outside, the radially opposite sides of the screw bearing inner race are respectively equipped with inner shield ring 2 and outer back-up ring 4；The screw bearing inner race it is cylindrical
Screw bearing outer ring described in the inner-ring bearing raceway 6 of the circular arc of ring-type and inner shield ring are provided with face, that outer back-up ring is formed is outer
The inner headed face of coil component is provided with the race bearing raceway 14 of the circular arc of the ring-type of the corresponding inner-ring bearing raceway, some axles
Ball 5 is held by retainer to be arranged in the raceway that the inner-ring bearing raceway is formed with race bearing raceway.
Wherein, the race bearing raceway is two, and interval pre-determined distance is set, and the race bearing raceway is located at institute
At the butt seam for stating inner shield ring and outer back-up ring and screw bearing outer ring, the screw bearing outer ring, inner shield ring and outer gear
The interface of circle has the consistent deep-slotted chip breaker for forming the race bearing raceway respectively, is formed by the docking of the deep-slotted chip breaker
The race bearing raceway 14.
The race bearing raceway by processing respectively on the docking end face of inner shield ring, outer back-up ring and screw bearing outer ring
The annular deep-slotted chip breaker of formation docks to be formed.
The raceway is two, and interval pre-determined distance sets and separated.
Wherein, the screw bearing inner race 1 has the screw hole 12 for being used for realizing transmission cooperation by ball with screw mandrel, should
The hole face of screw hole is provided with the spiral rolling track 13 for ball moving, and the spiral rolling track is corresponding with the spiral rolling track on screw mandrel, shape
Into the motion raceway of screw mandrel ball.
Of course, as technology well known to those skilled in the art, in order to realize the return movement of screw mandrel ball, in ball
Keyway is also offered on the inner surface of screw, keypad reverser is provided with the keyway；The gateway difference of the keypad reverser
With ball screw raceway is round and smooth is connected, to realize the return movement of screw mandrel ball.
Wherein, the inner-ring bearing raceway of the left and right annular arc-shaped of the screw bearing inner race and screw bearing outer ring
Using the transition of circular arc chamfering 11 connection between the raceway of the deep-slotted chip breaker of left and right back-up ring
Specifically when mounted, inner shield ring contacts with screw bearing inner race face, screw bearing outer ring 3, inner shield ring 2 and outer gear
Circle 4 is face contact, and in outside, i.e., the outside of outer back-up ring by locking nut by screw bearing outer ring 3, inner shield ring 2 and
Outer back-up ring 4 is arranged on the periphery of screw bearing inner race, and is coordinated with the bearing ball and realized rotation transmission.
Compared with prior art, the utility model has advantages below：
1st, the left and right gear of the bearing ball raceway of the left and right annular arc-shaped of screw bearing inner race and screw bearing outer ring
Connected between circle using circular arc chamfering transition, and bearing ball raceway, the circle of the left and right annular arc-shaped of screw bearing inner race
The inner face of arc chamfering and left and right back-up ring is processed using integrated grinding method, makes the left and right annular of screw bearing inner race
It is wholly-round transition between the bearing ball raceway and left and right back-up ring of arc-shaped, to prevent bearing ball by axial direction
During load, scratched by the wedge angle between the bearing ball raceway of the annular arc-shaped in left and right and left and right back-up ring.
2nd, precise ball screw bearing of the present utility model solves the alignment error after existing screw, bearing fit and asked
Topic, it is ensured that the running precision for the mechanical part being attached thereto.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (3)
1. a kind of screw bearing, it is characterised in that including containing screw bearing inner race and screw bearing outer ring, inner shield ring and outer
The ball screw of back-up ring, the radially opposite sides of the screw bearing inner race are respectively equipped with inner shield ring and outer back-up ring；The screw bearing
The cross section that ring-type is provided with the periphery of inner ring is the inner-ring bearing raceway of circular arc, the screw bearing outer ring and interior gear
The cross section that the inner headed face for the outer collar members that circle, outer back-up ring are formed is provided with the ring-type of the corresponding inner-ring bearing raceway is circular arc
The race bearing raceway of shape, some bearing balls are arranged on the raceway that the inner-ring bearing raceway is formed with race bearing raceway
In.
2. screw bearing according to claim 1, it is characterised in that the raceway is two, and interval pre-determined distance is set
Put.
3. according to claim or the 1 or 2 screw bearings, it is characterised in that the race bearing raceway is located at the interior gear
At the butt seam of circle and outer back-up ring and screw bearing outer ring, pair of the screw bearing outer ring, inner shield ring and outer back-up ring
Junction has the consistent deep-slotted chip breaker for forming the race bearing raceway respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720123128.6U CN206708196U (en) | 2017-02-10 | 2017-02-10 | A kind of screw bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720123128.6U CN206708196U (en) | 2017-02-10 | 2017-02-10 | A kind of screw bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206708196U true CN206708196U (en) | 2017-12-05 |
Family
ID=60472007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720123128.6U Expired - Fee Related CN206708196U (en) | 2017-02-10 | 2017-02-10 | A kind of screw bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206708196U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236966A (en) * | 2018-09-30 | 2019-01-18 | 孟永正 | A kind of high thrust ball screw |
| CN110219954A (en) * | 2019-04-24 | 2019-09-10 | 上海复志信息技术有限公司 | The fine motion device swung when adjustment screw rod operation |
-
2017
- 2017-02-10 CN CN201720123128.6U patent/CN206708196U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236966A (en) * | 2018-09-30 | 2019-01-18 | 孟永正 | A kind of high thrust ball screw |
| CN109236966B (en) * | 2018-09-30 | 2023-11-07 | 孟永正 | High thrust ball screw |
| CN110219954A (en) * | 2019-04-24 | 2019-09-10 | 上海复志信息技术有限公司 | The fine motion device swung when adjustment screw rod operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |