CN207080501U - A kind of static pressure liquid bearing - Google Patents
A kind of static pressure liquid bearing Download PDFInfo
- Publication number
- CN207080501U CN207080501U CN201720792764.8U CN201720792764U CN207080501U CN 207080501 U CN207080501 U CN 207080501U CN 201720792764 U CN201720792764 U CN 201720792764U CN 207080501 U CN207080501 U CN 207080501U
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- Prior art keywords
- axle sleeve
- static pressure
- pressure liquid
- bearing
- bearing case
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Abstract
It the utility model is related to a kind of static pressure liquid bearing, axle sleeve including bearing case and liquid-permeable, the axle sleeve outer wall is fixed on bearing case inwall, formed with sap cavity between the axle sleeve outer wall and bearing case inwall, offered on the bearing case into through hole, it is described enter through hole be connected with sap cavity.In use, rotating shaft is arranged on axle sleeve, gap is formed between rotating shaft and axle sleeve.Then liquid is passed through in sap cavity through entering through hole, further entered by axle sleeve in the gap between rotating shaft and axle sleeve.Due to liquid viscosity characteristic, the fluid pressure in gap is improved, and rotating shaft is floated, and realizes the high speed rotation of rotating shaft.The suspension of rotating shaft is only realized by bearing case and axle sleeve can, its small, long lifespan of abrasion, cost are low.
Description
Technical field
It the utility model is related to technical field of bearings, and in particular to a kind of static pressure liquid bearing.
Background technology
Traditional bearing is mainly rotated by ball, and abrasion occurs after rolling long in ball, influences the longevity of bearing
Life.Therefore, it is necessary to which a kind of abrasion is small, life-span higher bearing.
Utility model content
The technical problems to be solved in the utility model is, there is provided a kind of static pressure liquid bearing, its abrasion is small, and the life-span is high,
Cost is low.
Technical scheme is used by the utility model solves its technical problem：A kind of static pressure liquid bearing is provided, including
The axle sleeve of bearing case and liquid-permeable, the axle sleeve outer wall are fixed on bearing case inwall, the axle sleeve outer wall and bearing
Formed with sap cavity between outer casing inner wall, offered on the bearing case into through hole, it is described enter through hole be connected with sap cavity.
Further, the outer wall of the axle sleeve offers annular groove, and the sap cavity is by the annular groove and the axle
Sealing is formed between holding outer casing inner wall.
Further, the annular groove includes a big groove and some little grooves, parallel between some little grooves
It is arranged at intervals, and is connected respectively with big groove；It is described enter through hole be connected with big groove.
Further, the static pressure liquid bearing also includes some support blocks, and the bottom of the support block is fixed on described
Big groove bottom, its top can support the bearing case inwall.
Further, it is described enter through hole be the screwed hole that is connected with joint.
Further, glue adhesive seal is passed through between the axle sleeve outer wall and the bearing case inwall.
Further, the seal groove for being used for placing glue is provided between the axle sleeve outer wall and the bearing case inwall.
Further, the axle sleeve is made up of liquid permeable material.
Further, the liquid permeable material is porous carbon.
Further, the axle sleeve is made by offering some through holes on metallic sheath.
Compared with prior art, a kind of static pressure liquid bearing of the present utility model, in use, rotating shaft is arranged on into axle sleeve
On, gap is formed between rotating shaft and axle sleeve.Then liquid is passed through in sap cavity through entering through hole, is further entered by axle sleeve and turned
In gap between axle and axle sleeve.Due to liquid viscosity characteristic, the fluid pressure in gap is improved, and rotating shaft is floated, and is realized
The high speed rotation of rotating shaft.The suspension of rotating shaft, its small, long lifespan of abrasion, cost are only realized by bearing case and axle sleeve can
It is low.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
Fig. 1 is the schematic cross-sectional view of static pressure liquid bearing of the present utility model；
Fig. 2 is the schematic cross-sectional view of another embodiment static pressure liquid bearing provided by the utility model.
Embodiment
In conjunction with accompanying drawing, preferred embodiment of the present utility model is elaborated.
As shown in figure 1, a kind of static pressure liquid bearing of the present utility model, including bearing case 10 and the axle sleeve of liquid-permeable
20, the outer wall of axle sleeve 20 is fixed on the inwall of bearing case 10, formed with sap cavity between the outer wall of axle sleeve 20 and the inwall of bearing case 10
30, offer into through hole 11 on bearing case 10, enter through hole 11 and be connected with sap cavity 30.In use, rotating shaft 1 is arranged on axle sleeve
On 20, gap 2 is formed between rotating shaft 1 and axle sleeve 20.Then liquid is passed through in sap cavity 30 through entering through hole 11, further passed through
Axle sleeve 20 enters in the gap 2 between rotating shaft 1 and axle sleeve 20.Due to liquid viscosity characteristic, the fluid pressure in gap 2 improves,
Rotating shaft 1 is floated, realizes the high speed rotation of rotating shaft 1.The outstanding of rotating shaft 1 is only realized by bearing case 10 and the can of axle sleeve 20
Floating, its small, long lifespan of abrasion, cost are low.
Specifically, it is the screwed hole being connected with joint to enter through hole 11, and screwed hole is easy to the joint of outside liquid supply equipment with entering
Through hole 11 connects, the topping up into sap cavity.In the present embodiment, axle sleeve 20 is made up of liquid permeable material.The liquid permeable material is preferably porous
Carbon, porous carbon light weight, liquid permeability are good.If liquid is oil, also there is lubrication.
In other embodiments, axle sleeve 20 can also be made by offering some through holes on metallic sheath, such as aluminum axle sleeve
Offered on and if parch through hole.So can also transparent liquid, realize suspension rotating shaft 1.
Specifically, the outer wall of axle sleeve 20 offers annular groove, sap cavity 30 by annular groove and the inwall of bearing case 10 it
Between seal formed.In the present embodiment, glue adhesive seal is passed through between the outer wall of axle sleeve 20 and the inwall of bearing case 10.Axle sleeve 20
The seal groove for being used for placing glue, such better tightness are provided between outer wall and the inwall of bearing case 10.
Further, annular groove includes a big groove 21 and some little grooves 22, parallel between some little grooves 22
Every setting, and it is connected respectively with big groove 21；Enter through hole 11 with big groove 21 to be connected.I.e. from enter through hole 11 be passed into it is big recessed
The liquid of groove 21 is distributed in each little groove 22 respectively, the liquid of outflow is formed a uniform pressure to axle sleeve 20
Power.
In other embodiments, static pressure liquid bearing also includes some support blocks 40 (as shown in Figure 2), the bottom of support block 40
Portion is fixed on the bottom of big groove 21, and its top can support the inwall of bearing case 10.It can so prevent after loading rotating shaft 1, big groove
21 occur moderate finite deformation, influence the stabilization of air pressure.When big groove 21 deforms, the top of support block 40 can withstand bearing case
10 inwalls, reduce the deformation of big groove 21.In the present embodiment, support block 40 is made up of metal material.
It should be appreciated that above example is only to illustrate the technical solution of the utility model, it is rather than its limitations, right
For those skilled in the art, the technical scheme described in above-described embodiment can be modified, or to which part skill
Art feature carries out equivalent substitution；And all such modifications and replacement, it should all belong to the protection of the appended claims for the utility model
Scope.
Claims (10)
1. a kind of static pressure liquid bearing, it is characterised in that the axle sleeve including bearing case and liquid-permeable, the axle sleeve outer wall are consolidated
It is scheduled on bearing case inwall, formed with sap cavity between the axle sleeve outer wall and bearing case inwall, is opened on the bearing case
Be provided with into through hole, it is described enter through hole be connected with sap cavity.
2. static pressure liquid bearing according to claim 1, it is characterised in that it is recessed that the outer wall of the axle sleeve offers annular
Groove, the sap cavity are formed by being sealed between the annular groove and the bearing case inwall.
3. static pressure liquid bearing according to claim 2, it is characterised in that if the annular groove include a big groove and
Little groove is done, parallel interval is set between some little grooves, and is connected respectively with big groove；It is described enter through hole with it is big recessed
Groove is connected.
4. static pressure liquid bearing according to claim 3, it is characterised in that if the static pressure liquid bearing also includes the Heavenly Stems and Earthly Branches
Bracer, the bottom of the support block are fixed on the big groove bottom, and its top can support the bearing case inwall.
5. static pressure liquid bearing according to claim 3, it is characterised in that it is described enter through hole be the screw thread that is connected with joint
Hole.
6. static pressure liquid bearing as claimed in any of claims 1 to 5, it is characterised in that the axle sleeve outer wall with
Pass through glue adhesive seal between the bearing case inwall.
7. static pressure liquid bearing according to claim 6, it is characterised in that in the axle sleeve outer wall and the bearing case
The seal groove for being used for placing glue is provided between wall.
8. static pressure liquid bearing as claimed in any of claims 1 to 5, it is characterised in that the axle sleeve is by transparent liquid
Material is made.
9. static pressure liquid bearing according to claim 8, it is characterised in that the liquid permeable material is porous carbon.
10. static pressure liquid bearing as claimed in any of claims 1 to 5, it is characterised in that the axle sleeve is by metal
Put and offer some through holes and be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720792764.8U CN207080501U (en) | 2017-07-03 | 2017-07-03 | A kind of static pressure liquid bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720792764.8U CN207080501U (en) | 2017-07-03 | 2017-07-03 | A kind of static pressure liquid bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207080501U true CN207080501U (en) | 2018-03-09 |
Family
ID=61426395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720792764.8U Active CN207080501U (en) | 2017-07-03 | 2017-07-03 | A kind of static pressure liquid bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207080501U (en) |
-
2017
- 2017-07-03 CN CN201720792764.8U patent/CN207080501U/en active Active
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