CN207864429U - A kind of linear bearing - Google Patents
A kind of linear bearing Download PDFInfo
- Publication number
- CN207864429U CN207864429U CN201820025878.4U CN201820025878U CN207864429U CN 207864429 U CN207864429 U CN 207864429U CN 201820025878 U CN201820025878 U CN 201820025878U CN 207864429 U CN207864429 U CN 207864429U
- Authority
- CN
- China
- Prior art keywords
- ball
- linear bearing
- cylindrical roller
- ring
- outer ring
- 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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- Bearings For Parts Moving Linearly (AREA)
Abstract
The utility model discloses a kind of linear bearings, including：Outer ring, through-hole, ball, inner ring, chip space, retainer, baffle ring, check valve, chip removal mouth, sealing cover, cylindrical roller slot, cylindrical roller, inner groovy, external groove, card slot, boss；The utility model bearing is at work, the relatively independent running of all balls, it does not contact between each other, there is no the effects of mutual frictional resistance, avoid the phenomenon that ball stops rolling in the linear bearing course of work, eliminate the noise of ball frictional impact generation, the inner surface of the outer surface and outer ring that protect inner ring is against damages, extend the service life of linear bearing, ensure the stress balance of used time in fact by being arranged alternately ball and roller simultaneously, its operating accuracy is not reduced again, effectively reduce the vibration of high speed operation, and then improve the reliability of its work.
Description
Technical field
The utility model is related to a kind of dieparts, and in particular to a kind of linear bearing.
Background technology
Linear bearing is a kind of linear motion system with low cost production, is made for unlimited stroke and cylindrical shaft cooperation
With due to being in point contact between ball and axis, therefore maneuvering load is small, and ball is rotated with minimum frictional resistance, so as to obtain
High-precision smooth motion.The rolling bearing of the prior art generally comprises inner ring, retainer and outer ring, and three is from inside to outside successively
Be set in together, be provided on retainer it is multiple be equipped with along its rectangular slot circumferentially, each rectangular slot it is multiple
Ball, and ball is in contact with the inner surface of the outer surface of inner ring, outer ring simultaneously, in this way, by the way that inner ring suit is fixed on
On kinematic axis, you can realize the straight reciprocating motion of kinematic axis, at this point, forming rolling friction between ball and inner ring, outer ring, rub
It is minimum to wipe resistance, precision is high, and movement is quick.But it in the actual use process, often will appear the phenomenon that ball does not roll, make
At sliding friction is formed between ball and inner ring, outer ring, frictional resistance is not only increased, loses the effect of linear bearing, and
And frictional impact between ball and ball, noise is very big, easily damages the inner surface of the outer surface and outer ring of inner ring, shortens straight line
The service life of bearing.
Utility model content
The utility model in view of the deficiencies of the prior art, provides a kind of linear bearing, including：Outer ring, through-hole, ball,
Inner ring, chip space, retainer, baffle ring, check valve, chip removal mouth, it is sealing cover, cylindrical roller slot, cylindrical roller, inner groovy, outer recessed
Slot, card slot, boss.Inner ring, retainer and the outer ring is set in together from inside to outside, wherein is provided on retainer more
It is a that along its sets of vias circumferentially, each sets of vias is parallel with the axis of retainer, and each sets of vias includes multiple through-holes, this
A little through-holes are adapted with ball, be all provided in each through-hole there are one ball.The outer surface of the inner ring is equipped with and through-hole
The corresponding external groove of group, while inner groovy corresponding with sets of vias is equipped on the inner surface of outer ring, the ball in through-hole
It is arranged in external groove and inner groovy simultaneously.The cylindrical roller slot is arranged on retainer and is located at through-hole side, described
Cylindrical roller be arranged in cylindrical roller slot.The chip space is between through-hole and cylindrical roller slot, the outer ring
Both ends of the surface be provided with boss, the sealing cover is arranged in boss outer end.The described baffle ring setting outer ring and sealing cover it
Between, the chip removal mouth is arranged on sealing cover, wherein the check valve is arranged in chip removal mouth.In the outer ring outside
Meta position, which installs, is equipped with card slot.
The ball is steel ball.
The cylindrical roller slot is set as 1~2.
The chip space is set as 1~2.
The chip removal mouth 9 is set as 1~2.
The sets of vias is 7.
Advantageous effect:
There is gaps between ball in a kind of linear bearing of the utility model, then the linear bearing at work, institute
Some relatively independent runnings of ball, do not contact between each other, and the effect of mutual frictional resistance is not present, avoids linear bearing work
During work ball stop roll the phenomenon that, eliminate ball frictional impact generation noise, protect inner ring outer surface and
The inner surface of outer ring is against damages, extends the service life of linear bearing, while ensureing by being arranged alternately ball and roller
The stress balance of used time in fact, and its operating accuracy is not reduced, the vibration of high speed operation is effectively reduced, and then improve its work
Reliability.
Description of the drawings：
Fig. 1 is a kind of structural schematic diagram of linear bearing of the utility model；
Fig. 2 is the utility model part isometric structural schematic diagram；
Fig. 3 is the utility model cross-sectional view.
Specific implementation mode
Below by drawings and examples, the technical solution of the utility model is described in further detail.
It is a kind of linear bearing as shown in Figure 1, Figure 2 and Figure 3, including：Outer ring 1, through-hole 2, ball 3, inner ring 4,
Chip space 5, retainer 6, baffle ring 7, check valve 8, chip removal mouth 9, sealing cover 10, cylindrical roller slot 11, cylindrical roller 12, inner groovy
13, external groove 14, card slot 15, boss 16.Inner ring 4, retainer 6 and the outer ring 1 is set in together from inside to outside,
In, it is provided on retainer 6 multiple along its sets of vias circumferentially, each sets of vias is parallel with the axis of retainer 6, often
A sets of vias includes multiple through-holes 2, these through-holes 2 are adapted with ball 3, is all provided in each through-hole 2 there are one ball 3.Institute
The outer surface for the inner ring 4 stated is equipped with external groove 14 corresponding with sets of vias, while being equipped with and leading on the inner surface of outer ring 1
The corresponding inner groovy 13 of hole group, the ball 3 in through-hole 2 are arranged in external groove 14 and inner groovy 13 simultaneously, work as linear bearing
When work, all balls 3, which are limited in external groove 14 and inner groovy 13, to be rolled.The setting of cylindrical roller slot 11 exists
On retainer 6 and it is located at 2 side of through-hole, the cylindrical roller 12 is arranged in cylindrical roller slot 11.The chip space 5
Between through-hole 2 and cylindrical roller slot 11, the both ends of the surface of the outer ring 1 are provided with boss 16, the sealing cover 10 setting
In 16 outer end of boss.The baffle ring 7 is arranged between outer ring 1 and sealing cover 10, and the chip removal mouth 9 is arranged in sealing cover 10
On, wherein the check valve 8 is arranged in chip removal mouth 9.The 1 outside centre position of outer ring is provided with card slot 15.To make
Work is more reliable, ensures its working efficiency.The cylindrical roller slot 11 of the linear bearing is set as 1~2, and chip space 5 is arranged
It it is 1~2, chip removal mouth 9 is set as 1~2.
The utility model installs ball by interval, makes to be in contact between ball, between ball and ball also not
Frictional impact etc. can occur, and prevent ball 3 from dislocation occurs and causes extrusion damage to inner ring 4 and outer ring 1, in linear bearing
When work, this structure can eliminate the noise generated by bead impact friction, avoid because ball stops causing directly due to rolling
Spool, which is held, to be stopped.Ensure the stress balance of used time in fact by being arranged alternately ball and roller simultaneously, and does not reduce its work
Make precision, effectively reduce the vibration of high speed operation, and then improves the reliability of its work.In this way, just make ball and ball it
Between be provided with certain interval, will not be in contact between ball, frictional impact etc. will not occur between ball and ball, and
Prevent ball 3 from dislocation occurs and causes extrusion damage to inner ring 4 and outer ring 1, when linear bearing works, this structure can disappear
Except the noise generated by bead impact friction, avoid because ball stops causing linear bearing to be stopped due to rolling.
In conclusion present disclosure is not limited in the above embodiments, those skilled in the art can be
It is proposed other embodiments within the technological guidance's thought of the present invention, but these embodiments be included in the scope of the present invention it
It is interior.
Claims (6)
1. a kind of linear bearing, it is characterised in that：Including outer ring, through-hole, ball, inner ring, chip space, retainer, baffle ring, unidirectional
Valve, chip removal mouth, sealing cover, cylindrical roller slot, cylindrical roller, inner groovy, external groove, card slot, boss；The inner ring is kept
Frame and outer ring are set in together from inside to outside, wherein are provided on retainer multiple along its sets of vias circumferentially, Mei Getong
The axis of Kong Zuyu retainers is parallel, and each sets of vias includes multiple through-holes, these through-holes are adapted with ball, in each through-hole
Ball there are one being inside all provided with；The outer surface of the inner ring is equipped with external groove corresponding with sets of vias, while in outer ring
Inner surface is equipped with inner groovy corresponding with sets of vias, and the ball in through-hole is arranged in external groove and inner groovy simultaneously；Institute
The cylindrical roller slot stated is arranged on retainer and is located at through-hole side, and the cylindrical roller is arranged in cylindrical roller slot；
For the chip space between through-hole and cylindrical roller slot, the both ends of the surface of the outer ring are provided with boss, the sealing
Lid is arranged in boss outer end；The baffle ring is arranged between outer ring and sealing cover, and the chip removal mouth is arranged on sealing cover,
Wherein the check valve is arranged in chip removal mouth；Centre position is provided with card slot outside the outer ring.
2. a kind of linear bearing according to claim 1, it is characterised in that：The ball is steel ball.
3. a kind of linear bearing according to claim 1, it is characterised in that：The cylindrical roller slot is set as 1~2
Item.
4. a kind of linear bearing according to claim 1, it is characterised in that：The chip space is set as 1~2.
5. a kind of linear bearing according to claim 1, it is characterised in that：The chip removal mouth 9 is set as 1~2.
6. a kind of linear bearing according to claim 1, it is characterised in that：The sets of vias is 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820025878.4U CN207864429U (en) | 2018-01-08 | 2018-01-08 | A kind of linear bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820025878.4U CN207864429U (en) | 2018-01-08 | 2018-01-08 | A kind of linear bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207864429U true CN207864429U (en) | 2018-09-14 |
Family
ID=63464971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820025878.4U Expired - Fee Related CN207864429U (en) | 2018-01-08 | 2018-01-08 | A kind of linear bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207864429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374994A (en) * | 2019-06-29 | 2019-10-25 | 浙江威肯特智能机械有限公司 | A kind of novel linear slide rail |
-
2018
- 2018-01-08 CN CN201820025878.4U patent/CN207864429U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374994A (en) * | 2019-06-29 | 2019-10-25 | 浙江威肯特智能机械有限公司 | A kind of novel linear slide rail |
| CN110374994B (en) * | 2019-06-29 | 2021-11-09 | 浙江威肯特智能机械有限公司 | Linear sliding guide rail |
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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: 20180914 Termination date: 20190108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |