CN104500567A - Loop type multi-throttle static-pressure gas tapered bearing - Google Patents
Loop type multi-throttle static-pressure gas tapered bearing Download PDFInfo
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- CN104500567A CN104500567A CN201410734880.5A CN201410734880A CN104500567A CN 104500567 A CN104500567 A CN 104500567A CN 201410734880 A CN201410734880 A CN 201410734880A CN 104500567 A CN104500567 A CN 104500567A
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- bearing
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Abstract
The invention provides a loop type multi-throttle static-pressure gas tapered bearing. The loop type multi-throttle static-pressure gas tapered bearing comprises a tapered bearing body, and a bearing working surface which is arranged on the tapered bearing body; an annular shallow cavity is formed in the middle of the bearing working surface; at least two air supply holes are formed in the middle part of the annular shallow cavity; axes of the air supply holes are vertical to the bearing working surface. According to the loop type multi-throttle static-pressure gas tapered bearing, the bearing working area between throttle holes and the multi-throttle effect are fully utilized to comprehensively improve the working performances (including the bearing capacity and the rigidity) of the static-pressure gas tapered bearing.
Description
Technical field
The present invention relates to a kind of static pressure gas conic bearing, particularly relate to a kind of endless belt composite throttling static pressure gas conic bearing.
Background technique
At present, the static pressure gas conic bearing used in engineering, only utilizes outer throttling static pressure air-bearing or surface throttle carry out bearing load and provide rigidity, usually runs into that bearing capacity is low, rigidity is little, the problem of poor anti jamming capability in the middle of practical application.The static pressure gas conic bearing of these kinds does not make full use of composite throttling effect, thus can not provide large bearing capacity and rigidity, and poor anti jamming capability, rotating accuracy are difficult to improve; Chinese patent (CN1651786A) composite throttling conical bearing discloses a kind of composite throttling bearing utilizing surface grooves, and each throttle orifice is relatively independent, and the bearing working surface that cannot make full use of between throttle orifice provides bearing capacity; Chinese patent (CN1651783A) double characteristic composite throttling static pressure gas conic bearing discloses the symphyogenetic composite throttling bearing type of a kind of groove and shallow chamber, equally, each throttle orifice is relatively independent, and the bearing working surface that cannot make full use of between throttle orifice provides bearing capacity.
Summary of the invention
The object of the invention is the endless belt composite throttling static pressure gas conic bearing in order to provide a kind of high rigidity, high bearing capacity.
The object of the present invention is achieved like this: comprise conical bearing body and be arranged on the bearing working face on conical bearing body, the shallow chamber of ring-type is set at the middle part of described bearing working face, at least two air vents are set at the middle part in the shallow chamber of ring-type, and the axis of described air vent is vertical with bearing working face.
The present invention also comprises some structure characteristics like this:
1. also comprise throttling part, throttling part is installed flow controller in the outlet port of air vent or arrange throttle orifice between the shallow chamber of ring-type and air vent.
2. ring-type shallow chamber width is the 30%-70% of the width of bearing working face, and the degree of depth in the shallow chamber of ring-type is 1-50 micron.
Compared with prior art, the invention has the beneficial effects as follows: make full use of bearing work area and composite throttling effect between throttle orifice and improve static pressure gas conic bearing service behaviour comprehensively, and invention increases the shallow chamber of ring-type, form ' endless belt composite throttling mechanism ' structure, improve bearing capacity and rigidity.Structure of the present invention is simple, low cost of manufacture; Be easy to detect, be easy to quality control, processing quality is stablized, and compared with traditional gas bearing, the leveling effect of air film to locating face machining error is further enhanced.
Accompanying drawing explanation
Fig. 1 is the generalized section of the endless belt composite throttling static pressure gas conic bearing of band flow controller;
Fig. 2 is the generalized section of the endless belt composite throttling static pressure gas conic bearing of band throttle orifice.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Case study on implementation one: composition graphs 1, the present invention includes conical bearing body and be arranged on the bearing working face 1 on conical bearing body, the shallow chamber 2 of ring-type is set at the middle part of described bearing working face 1, at least two air vents 3 are set at the middle part in the shallow chamber 2 of ring-type, and the axis of described air vent 3 is vertical with bearing working face 1.
Case study on implementation two: based on case study on implementation one, composition graphs 1 and Fig. 2, the present invention also comprises throttling part, and throttling part is installed flow controller 4 in the outlet port of air vent 3 or arrange throttle orifice 8 between the shallow chamber 2 of ring-type and air vent 3.As shown in Figure 1: be provided with flow controller 4 in each air vent 3 outlet, pressure air enters bearing through air vent 3 and flow controller 4; As shown in Figure 2: ring-type is processed with throttle orifice 8 in the middle part of shallow chamber 2, and throttle orifice 8 communicates with corresponding air vent 3, also namely between the shallow chamber 2 of ring-type and air vent 3, arrange throttle orifice 8, then pressure air enters bearing through air vent 3 and throttle orifice 8.
Flow controller 4 of the present invention can be the flow controller of multiple principle, as orifice restriction device, and Slot Aperture Restrictor, circumferential weld flow controller and porous restriction device etc.
Bearing working face 1 of the present invention is static working surface, is equipped with corresponding outer conical surface, can form endless belt composite throttling static pressure gas conic bearing secondary.
Ring-type of the present invention shallow chamber 2 width is the 30%-70% of the width of bearing working face 1, and the degree of depth in the shallow chamber 2 of ring-type is 1-50 micron, the L in Fig. 1 and Fig. 2
2for the width in the shallow chamber 2 of ring-type; L
1for the width of bearing working face 1, H is the degree of depth in the shallow chamber 2 of ring-type, is also the width L in the shallow chamber 2 of ring-type
2the width L of bearing working face 1
130%-70%, the depth H in the shallow chamber 2 of ring-type is 1-50 micron.
Claims (3)
1. endless belt composite throttling static pressure gas conic bearing, comprise conical bearing body and be arranged on the bearing working face on conical bearing body, it is characterized in that: the shallow chamber of ring-type is set at the middle part of described bearing working face, at least two air vents are set at the middle part in the shallow chamber of ring-type, and the axis of described air vent is vertical with bearing working face.
2. endless belt composite throttling static pressure gas conic bearing according to claim 1, is characterized in that: also comprise throttling part, and throttling part is installed flow controller in the outlet port of air vent or arrange throttle orifice between the shallow chamber of ring-type and air vent.
3. endless belt composite throttling static pressure gas conic bearing according to claim 1 and 2, is characterized in that: ring-type shallow chamber width is the 30%-70% of the width of bearing working face, and the degree of depth in the shallow chamber of ring-type is 1-50 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410734880.5A CN104500567A (en) | 2014-12-04 | 2014-12-04 | Loop type multi-throttle static-pressure gas tapered bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410734880.5A CN104500567A (en) | 2014-12-04 | 2014-12-04 | Loop type multi-throttle static-pressure gas tapered bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104500567A true CN104500567A (en) | 2015-04-08 |
Family
ID=52942000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410734880.5A Pending CN104500567A (en) | 2014-12-04 | 2014-12-04 | Loop type multi-throttle static-pressure gas tapered bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104500567A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251361A (en) * | 2020-09-24 | 2022-03-29 | 武汉科技大学 | Micro-nano porous throttling static pressure air-flotation conical bearing |
-
2014
- 2014-12-04 CN CN201410734880.5A patent/CN104500567A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251361A (en) * | 2020-09-24 | 2022-03-29 | 武汉科技大学 | Micro-nano porous throttling static pressure air-flotation conical bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150408 |
|
| RJ01 | Rejection of invention patent application after publication |