CN106151274A - Two-part annulus throttling arrangement - Google Patents
Two-part annulus throttling arrangement Download PDFInfo
- Publication number
- CN106151274A CN106151274A CN201610707521.XA CN201610707521A CN106151274A CN 106151274 A CN106151274 A CN 106151274A CN 201610707521 A CN201610707521 A CN 201610707521A CN 106151274 A CN106151274 A CN 106151274A
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- Prior art keywords
- flow controller
- construction section
- throttle
- section
- cannelure
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
- F16C32/064—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being supplied under pressure
- F16C32/0644—Details of devices to control the supply of liquids to the bearings
- F16C32/0648—Details of devices to control the supply of liquids to the bearings by sensors or pressure-responsive control devices in or near the bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/005—Fluid passages not relating to lubrication or cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2322/00—Apparatus used in shaping articles
- F16C2322/39—General build up of machine tools, e.g. spindles, slides, actuators
Abstract
The present invention relates to two-part annulus throttling arrangement, including flow controller fixing body, jackscrew with holes, O RunddichtringO and flow controller body.Flow controller fixing body is by front cavity, rear chamber and draws oilhole and forms；Flow controller body is made up of shoulder, construction section, the first and second restriction portions, sealing cannelure, throttling cannelure, oil-feed cannelure and screw thread oilhole；The front cavity bottom realization axially positioning by jackscrew with holes compression flow controller shoulder to flow controller fixing body for the flow controller body, coordinates realization radial direction to position by construction section is cylindrical with rear chamber；First throttle section is identical with length with the second restriction portion external diameter, cooperatively forms throttle clearance with the rear chamber of same size, bigger than the positioning gap of construction section；During use by after oil-feed cannelure oil-feed respectively towards left and right sides both direction, after the first and second restriction portions throttlings, flow into one group of identical opposed oil pocket of physical dimension.This inventive structure is compact, and opposed oil pocket pressure identical adjustments is easy.
Description
Technical field
The present invention relates to the flow controller of liquid static-pressure support, be particularly suited for the very little opposed oil of flow controller installing space
Chamber.
Background technology
Liquid static-pressure support has the advantages such as frictional resistance is little, length in service life, precision high, damping is big, thus in superfinishing
Close lathe or functional part have a wide range of applications.
Flow controller is element indispensable in constant pressure oil supply THE HYDROSTATIC SUPPORTING SYSTEM.Conventional traditional fixed restriction device
Having orifice restriction device and capillary restrictor, orifice restriction device is easy for installation but easily blocks, and capillary restrictor size is relatively big, also
Easily blocking.Xi'an Communications University Zhao Wanhua professor and professor Chen Yaolong et al. devise a kind of annular slit restrictor (China
CN201010102089.4), by the gap between the rearward end of flow controller body and the rear end cavity of flow controller fixing body, structure
Having become the workspace of flow controller, this flow controller solves blockage problem to a certain extent.
But this flow controller is actually used, during especially for opposed oil pocket, need constantly to change flow controller element,
The pressure regulating opposed oil pocket is equal, relatively complicated.And when flow controller physical dimension is bigger relative to supporting structure, entirely
Supporting structure space is difficult to arrange the oilhole (a corresponding throttle orifice of oil pocket and a pressure tap) doubling oil pocket quantity,
Reduce the range of this flow controller.
Because above-mentioned defect, the design people, actively in addition research and innovation, to founding a kind of two-part annulus
Throttling arrangement so that it is have more the value in industry.
Content of the invention
It is equal easily that the technical problem to be solved is to provide one to have the opposed oil pocket pressure of tune, and structure
Compact flow controller.The two-part annulus throttling arrangement of the present invention, including flow controller fixing body, jackscrew with holes, O type seal
Circle and flow controller body, wherein: on described flow controller body, be provided with shoulder, the first construction section, the second construction section, first throttle
Section, the second restriction portion, sealing cannelure, throttling cannelure, oil-feed cannelure and screw thread oilhole, described flow controller fixing body sets
Being equipped with front cavity, rear chamber, first drawing oilhole and second and draw oilhole, the shoulder of described flow controller body is compressed by jackscrew with holes
In the bottom of front cavity, between the first construction section of described flow controller body, the second construction section and rear chamber, leave positioning gap,
The throttle clearance bigger than positioning gap is left between the first throttle section of described flow controller body and the second restriction portion and rear chamber,
It is provided with O RunddichtringO in sealing cannelure between first construction section of described flow controller body and the second construction section.
Further, the oil-feed cannelure of described flow controller body is arranged between first throttle section and the second restriction portion,
The sealing cannelure of described flow controller body is arranged between the first construction section and the second construction section.The of described flow controller body
The external diameter of one restriction portion and the second restriction portion is identical, and length is identical, with described first throttle section and the second restriction portion coordinate is
The rear chamber of same flow controller fixing body.First construction section of described flow controller body, the second construction section external diameter are identical, and with
Leave positioning gap between the rear chamber of flow controller fixing body, described positioning gap be less than first throttle section and the second restriction portion with
Throttle clearance between rear chamber, described positioning gap is often the 1/7 to 1/15 of throttle clearance, and described throttle clearance is according to static pressure
The liquid resistance of the single oil pocket of supporting calculates and determines.
Further, the first construction section and second construction section of described device body may be provided at first throttle section and second
Before restriction portion, described flow controller body is provided with screw thread oilhole, screw thread oilhole can respectively with oil-feed cannelure, or restrictor ring
Shape groove, or flow controller body tail section communicates, and constitutes three kinds of versions of two-part annular slit restrictor.In addition, it is described
After first construction section of flow controller body and the second construction section also can be arranged on first throttle section and the second restriction portion, in institute
Being additionally provided with the 3rd construction section after the shoulder stating flow controller body, the outside dimension of described 3rd construction section and first is installed
Section, the second construction section are identical, and described flow controller body is in addition to front end is provided with screw thread oilhole and throttle orifice communicates, and rear end also sets up
Have oilhole and oil-feed cannelure to communicate, constitute the 4th kind of version of two-part annular slit restrictor.
By such scheme, the present invention at least has the advantage that
1st, restriction portion be divide into first throttle section and the second restriction portion two sections.One group of physical dimension phase of one flow controller pipe
Same opposed oil pocket, due to first throttle section and the processing of the second restriction portion one cutter during processing, can make external diameter identical with length, coordinate
The rear chamber of the same flow controller fixing body through reamer articulation, the liquid resistance that throttles at two is identical.Therefore, when for opposed oil pocket,
Changing a flow controller and being equivalent to change the restricting element of a pair of identical liquid resistance simultaneously, the pressure of opposed oil pocket must in theory
Fixed identical, regulation opposed oil pocket pressure equal difficulty is greatly reduced.
2nd, the conversion of construction section and restriction portion front and back position is passed through, and the communicating of screw thread oilhole and different cannelures,
Constitute four kinds of two-part annular slit restrictors, be suitable for different application scenarios.For preferred forms, than now
Having technology to save the oilhole quantity of 3/4, (one group of opposed oil pocket of former technology needs four oilholes, i.e. two pressure taps and two joints
Discharge orifice, the present invention can be reduced to an oilhole, i.e. one oilhole integrating throttling and pressure measuring function), therefore structure phase
Bright compacter than primary.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
Brief description
Fig. 1 is present configuration schematic diagram one, two sections of forward throttle type annular slit restrictors.
Wherein: jackscrew with holes 1st, hexagon ring 1-1, O RunddichtringO 2, flow controller fixing body the 3rd, front cavity 3-1, rear chamber 3-
2nd, first draw oilhole 3-3, second draw oilhole 3-4, flow controller body the 4th, shoulder 4-1, the first construction section 4-2, the second construction section 4-
3rd, first throttle section 4-4, the second restriction portion 4-5, screw thread oilhole 4-6, seal cannelure 4-7, throttling cannelure 4-8, enter oil ring
Shape groove 4-9, oil supply pressure ps, first oil pocket pressure p r1, the second oil pocket pressure p r2.
Fig. 2 is present configuration schematic diagram two, surveys forefront pressure formula annular slit restrictor for two sections.
Wherein: jackscrew with holes 1st, hexagon ring 1-1, O RunddichtringO 2, flow controller fixing body the 3rd, front cavity 3-1, rear chamber 3-
2nd, first draw oilhole 3-3, second draw oilhole 3-4, lateral fuel feed hole 3-5, flow controller body the 4th, shoulder 4-1, the first construction section 4-
2nd, the second construction section 4-3, first throttle section 4-4, the second restriction portion 4-5, screw thread oilhole 4-6, sealing cannelure 4-7, restrictor ring
Shape groove 4-8, oil-feed cannelure 4-9, oil supply pressure ps, first oil pocket pressure p r1, the second oil pocket pressure p r2.
Fig. 3 is present configuration schematic diagram three, surveys rear end pressure type annular slit restrictor for two sections.
Wherein: jackscrew with holes 1st, hexagon ring 1-1, O RunddichtringO 2, flow controller fixing body the 3rd, front cavity 3-1, rear chamber 3-
2nd, first draw oilhole 3-3, second draw oilhole 3-4, lateral fuel feed hole 3-5, flow controller body the 4th, shoulder 4-1, the first construction section 4-
2nd, the second construction section 4-3, first throttle section 4-4, the second restriction portion 4-5, screw thread oilhole 4-6, sealing cannelure 4-7, restrictor ring
Shape groove 4-8, oil-feed cannelure 4-9, oil supply pressure ps, first oil pocket pressure p r1, the second oil pocket pressure p r2.
Fig. 4 is present configuration schematic diagram four, two sections of reverse throttle type annular slit restrictors.
Wherein: jackscrew with holes 1st, hexagon ring 1-1, O RunddichtringO 2, flow controller fixing body the 3rd, front cavity 3-1, rear chamber 3-
2nd, first draw oilhole 3-3, second draw oilhole 3-4, flow controller body the 4th, shoulder 4-1, the first construction section 4-2, the second construction section 4-
3rd, the 3rd construction section 4-12, first throttle section 4-4, the second restriction portion 4-5, screw thread oilhole 4-6, oilhole 4-10, sealing cannelure
4-7, first throttle cannelure 4-8, the second throttling cannelure 4-11, oil-feed cannelure 4-9, oil supply pressure ps, first oil pocket pressure
Power pr1, the second oil pocket pressure p r2.
Fig. 5 is invention (China CN201010102089.4), when single hop throttle type annular slit restrictor forward uses
Structural representation.Oil supply pressure ps, oil pocket pressure p r.
Fig. 6 is invention (China CN201010102089.4), when single hop throttle type annular slit restrictor reversely uses
Structural representation.Oil supply pressure ps, oil pocket pressure p r.
Fig. 7 is inventive concept and invention (China CN201010102089.4) thought combines and applies the single hop deriving to survey
Pressure ring shaped Slot Aperture Restrictor.
Wherein: jackscrew with holes 1st, hexagon ring 1-1, O RunddichtringO 2, flow controller fixing body the 3rd, front cavity 3-1, rear chamber 3-
2nd, oilhole 3-3 is drawn, flow controller body the 4th, shoulder 4-1, the first construction section 4-2, the second construction section 4-3, restriction portion 4-4, thread compound
Hole 4-6, sealing cannelure 4-7, oil-feed cannelure 4-9, oil supply pressure ps, oil pocket pressure p r.
Detailed description of the invention
First throttle section 4-4 of flow controller body 4 and the cylindrical cutter processing of the second restriction portion 4-5, have identical external diameter
And length, the rear chamber 3-2 of flow controller fixing body 3 processes through reamer articulation, and first throttle section 4-4 and the second restriction portion 4-5 divide
Other and rear chamber 3-2 constitutes throttle clearance, and throttle clearance calculates according to the throttling liquid resistance of opposed oil pocket and determines.Flow controller body 4
The first construction section 4-2 and the second construction section 4-3 cylindrical one cutter processing, there is the peace between identical external diameter, and rear chamber 3-2
Dress gap be less than throttle clearance, be about its 1/7～1/15.The sealing cannelure 4-7 of flow controller body 4 loads O RunddichtringO
After, it is pressed on bottom the front cavity 3-1 of flow controller fixing body 3 axially through jackscrew 1 with holes, radial through flow controller body 4
Construction section 4-2 and 4-3 and rear chamber 3-2 location fit.Pressure oil pumps into through oil supply pressure ps, through hexagon ring 1-1, screw thread oilhole
After 4-6, being passed through oil-feed cannelure 4-9 and being divided into left and right two-way, left enters first through throttle clearance at first throttle section 4-4 and draws oil
Hole 3-3, pressure reduces to the first oil pocket pressure p r1, and right wing enters second through throttle clearance at the second restriction portion 4-5 and draws oilhole 3-4,
Pressure reduces to the second oil pocket pressure p r2.First draws oilhole 3-3 and second draws the complete phase of respectively with one group of physical dimension of oilhole 3-4
One of them of same opposed oil pocket communicates.During static determinacy, the first oil pocket pressure p r1 is equal to the second oil pocket pressure in theory.
Fig. 2 is two sections and surveys forefront pressure formula annular slit restrictor, and its structure and principle are close with Fig. 1, are a difference in that,
Oil-feed position communicates at the lateral fuel feed hole 3-5 of flow controller fixing body 3, screw thread oilhole 4-6 and throttle orifice 4-8.Lateral oil sources pressure
After power ps introduces, from the screw thread oilhole 4-6 of flow controller front end, draw the first oil pocket pressure p r1.
Fig. 3 is two sections and surveys rear end pressure type annular slit restrictor, and its structure and principle are close with Fig. 1, are a difference in that,
Oil-feed position communicates at the lateral fuel feed hole 3-5 of flow controller fixing body 3, screw thread oilhole 4-6 and throttling afterbody.Lateral oil supply pressure
After ps introduces, from the screw thread oilhole 4-6 of flow controller front end, draw the second oil pocket pressure p r2.
Fig. 4 is two sections of reverse throttle type annular slit restrictors, and its structure and principle are close with Fig. 2, are a difference in that, joint
Stream device body 4 first construction section 4-2 and the second construction section 4-3 is arranged on flow controller afterbody, and O sealing ring 2 is contained in sealed groove 4-7
In, the disposed behind of flow controller shoulder 4-1 has the 3rd construction section 4-12, external diameter and the one or two construction section 4-2 with 4-3 identical, joint
Being additionally provided with oilhole 4-10 and oil-feed cannelure 4-9 on stream device body 4 to communicate, oil-feed position is at tail end.Tail end oil supply pressure ps
After introducing, from the screw thread oilhole 4-6 of flow controller front end, draw the first oil pocket pressure p r1.
Fig. 5 is invention (China CN201010102089.4), when single hop throttle type annular slit restrictor forward uses
Structural representation, hydraulic oil through oil supply pressure ps introducing after, from flow controller body front end, the annular being flowed on flow controller is entered
Oil groove, enters rear end after restriction portion throttling, and pressure reduces to pr.
Fig. 6 is invention (China CN201010102089.4), when single hop throttle type annular slit restrictor reversely uses
Structural representation, hydraulic oil is after oil supply pressure ps introducing, from flow controller body tail end, is flowed into joint after restriction portion throttling
Annular oil-feed tank on stream device, pressure is reduced to pr, and is drawn from flow controller front end.
Fig. 7 is inventive concept and invention (China CN201010102089.4) thought combines and applies the single hop deriving to survey
Pressure ring shaped Slot Aperture Restrictor.It is that oil supply pressure ps introduces from lateral fuel feed hole 3-3 with the difference of Fig. 5 and Fig. 6, warp knuckle
Entering tail end after stream section 3-2 throttling, pressure reduces to pr, and draws from flow controller front end, this is because the spiral shell on flow controller body 4
Line oilhole 4-3 has connected front and back end.
The internal thread hole on screw thread oilhole 4-3 in all inventions may be used for mounting or dismounting flow controller.
By above-mentioned character express and combine accompanying drawing it can be seen that use after the present invention, gather around and have the following advantages:
1st, restriction portion be divide into first throttle section and the second restriction portion two sections.Have one group of structure chi of a flow controller pipe
Very little identical opposed oil pocket, due to first throttle section and the processing of the second restriction portion one cutter during processing, can make external diameter identical with length,
Coordinating the rear chamber of the same flow controller fixing body through reamer articulation, the liquid resistance that throttles at two is identical.Therefore, it is used for opposed oil pocket
When, change a flow controller and be equivalent to change the restricting element of a pair of identical liquid resistance, the pressure of opposed oil pocket in theory simultaneously
Power must be identical, and regulation opposed oil pocket pressure equal difficulty is greatly reduced.
2nd, the conversion of construction section and restriction portion front and back position is passed through, and the communicating of screw thread oilhole and different cannelures,
Constitute four kinds of two-part annular slit restrictors, be suitable for different application scenarios.
3rd, for preferred forms, the oilhole quantity of 3/4, (one group of opposed oil of former technology are saved than prior art
Chamber needs four oilholes, i.e. two pressure taps and two throttle orifices, and the present invention can be reduced to an oilhole, i.e. one collection throttling
The oilhole being integrated with pressure measuring function), therefore structure is compared primary bright compacter.
General principle, principal character and the advantages of the present invention of the present invention are more than shown and described, have covered 6 kinds substantially
Structure and 7 kinds of basic usages.Skilled person will appreciate that of the industry, the present invention is not limited by examples detailed above, examples detailed above
With the principle that the present invention is simply described described in specification, the present invention is also without departing from the spirit and scope of the present invention
Having various changes and modifications, these changes and improvements both fall within scope of the claimed invention.Claimed
Scope is defined by appending claims and equivalent thereof.
Claims (6)
1. two-part annulus throttling arrangement, including flow controller fixing body (3), jackscrew with holes (1), O RunddichtringO (2) and joint
Stream device body (4), described flow controller body (4) is provided with shoulder (4-1), the first construction section (4-2), the second construction section (4-
3), first throttle section (4-4), the second restriction portion (4-5), sealing cannelure (4-7), throttling cannelure (4-8), oil-feed cannelure
(4-9) and screw thread oilhole (4-6), described flow controller fixing body (3) is provided with front cavity (3-1), rear chamber (3-2), first
Drawing oilhole (3-3) and second and drawing oilhole (3-4), the shoulder (4-1) of described flow controller body (4) is compressed by jackscrew with holes (1)
In the bottom of front cavity (3-1), stay between the construction section (4-2) of described flow controller body (4) and (4-3) and rear chamber (3-2)
There is positioning gap, between leaving between the restriction portion (4-4) of described flow controller body (4) and (4-5) and rear chamber (3-2) than positioning
The big throttle clearance of gap, the sealing between first construction section (4-2) of described flow controller body (4) and the second construction section (4-3)
It is provided with O RunddichtringO (2) in cannelure (4-7).
2. two-part annulus according to claim 1 throttling arrangement, it is characterised in that: described flow controller body (4)
Oil-feed cannelure (4-9) be arranged between first throttle section (4-4) and the second restriction portion (4-5), described flow controller body (4)
Sealing cannelure (4-7) be arranged between the first construction section (4-2) and the second construction section (4-3).
3. two-part annulus according to claim 2 throttling arrangement, it is characterised in that: described flow controller body (4)
First throttle section (4-4) identical with the external diameter of the second restriction portion (4-5), length is identical, with described first throttle section (4-4) and
What the second restriction portion (4-5) coordinated is the rear chamber (3-2) of same flow controller fixing body (3).
4. two-part annulus according to claim 3 throttling arrangement, it is characterised in that: described flow controller body (4)
The first construction section (4-2) identical with the second construction section (4-3) external diameter, and with the rear chamber (3-2) of flow controller fixing body (3) it
Between leave positioning gap, positioning gap is less than between first throttle section (4-4) and the second restriction portion (4-5) and rear chamber (3-2)
Throttle clearance, positioning gap is often for the 1/7 to 1/15 of throttle clearance, and throttle clearance is according to the liquid of hydrostatic support list oil pocket resistance meter
Calculate and determine.
5. two-part annulus according to claim 4 throttling arrangement, it is characterised in that: described flow controller body (4)
The first construction section (4-2) and the second construction section (4-3) may be provided at first throttle section (4-4) and the second restriction portion (4-5) it
Before, flow controller body (4) is provided with screw thread oilhole (4-6), screw thread oilhole (4-6) can respectively with oil-feed cannelure (4-9), or
Throttle cannelure (4-8), or flow controller body tail section communicates, and constitutes three kinds of versions of this throttling arrangement.
6. two-part annulus according to claim 4 throttling arrangement, it is characterised in that: described flow controller body (4)
The first construction section (4-2) and the second construction section (4-3) may be provided at first throttle section (4-4) and the second restriction portion (4-5) it
After, but the 3rd construction section (4-12), the 3rd construction section (4-need to be additionally provided with after the shoulder (4-1) of flow controller body (4)
12) outside dimension and the first construction section (4-2), the second construction section (4-3) are identical, and flow controller body (4) is provided with except front end
Outside screw thread oilhole (4-6) and throttle orifice (4-11) communicate, rear end is additionally provided with oilhole (4-10) and oil-feed cannelure (4-9) phase
Logical, constitute the 4th kind of version of this throttling arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610707521.XA CN106151274B (en) | 2016-08-23 | 2016-08-23 | Two-part annular gap throttling set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610707521.XA CN106151274B (en) | 2016-08-23 | 2016-08-23 | Two-part annular gap throttling set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106151274A true CN106151274A (en) | 2016-11-23 |
| CN106151274B CN106151274B (en) | 2019-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610707521.XA Active CN106151274B (en) | 2016-08-23 | 2016-08-23 | Two-part annular gap throttling set |
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| CN110748520A (en) * | 2019-09-19 | 2020-02-04 | 山东科技大学 | Needle gauge restrictor |
| CN114857174A (en) * | 2022-06-16 | 2022-08-05 | 中国工程物理研究院机械制造工艺研究所 | Anti-disturbance restrictor for hydrostatic bearing and hydrostatic guide rail |
| CN114992245A (en) * | 2022-07-12 | 2022-09-02 | 安徽润安思变能源技术有限公司 | Static pressure gas radial bearing and mounting equipment thereof |
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| CN110748520A (en) * | 2019-09-19 | 2020-02-04 | 山东科技大学 | Needle gauge restrictor |
| CN110748520B (en) * | 2019-09-19 | 2021-03-30 | 山东科技大学 | Needle gauge restrictor |
| CN114857174A (en) * | 2022-06-16 | 2022-08-05 | 中国工程物理研究院机械制造工艺研究所 | Anti-disturbance restrictor for hydrostatic bearing and hydrostatic guide rail |
| CN114992245A (en) * | 2022-07-12 | 2022-09-02 | 安徽润安思变能源技术有限公司 | Static pressure gas radial bearing and mounting equipment thereof |
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| CN106151274B (en) | 2019-05-14 |
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