CN106382302B - It is a kind of can on-line checking pressure fault and rapid-maintenance hydrostatic bearing - Google Patents
It is a kind of can on-line checking pressure fault and rapid-maintenance hydrostatic bearing Download PDFInfo
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- CN106382302B CN106382302B CN201611040831.7A CN201611040831A CN106382302B CN 106382302 B CN106382302 B CN 106382302B CN 201611040831 A CN201611040831 A CN 201611040831A CN 106382302 B CN106382302 B CN 106382302B
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- Prior art keywords
- hydrostatic bearing
- bearing
- threaded hole
- restriction device
- hole
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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
Abstract
The invention discloses it is a kind of can on-line checking pressure fault and rapid-maintenance hydrostatic bearing.The device includes orifice restriction device, hydrostatic bearing, bearing block, interior hexagonal plug, crossover sub and pressure gauge.Orifice restriction device outer surface is threaded, and end face is machined with straight slot；The static pressure of the hydrostatic bearing is intracavitary to be threaded hole A and threaded hole B, and threaded hole A is connected with orifice restriction device, and threaded hole B is connected with crossover sub；Bearing block position corresponding with threaded hole A is machined with conical screw hole, and position corresponding with threaded hole B is machined with cylindrical hole；The through-hole that described crossover sub one end passes through on bearing block is screwed into the threaded hole B on hydrostatic bearing, and the other end is connected with pressure gauge；The interior hexagonal plug couples with the threaded hole on bearing block.The device can be with the working condition of on-line checking hydrostatic bearing using pressure gauge.In addition, by hexagonal plug in dismounting and orifice restriction device rapid-maintenance can be carried out to hydrostatic bearing.
Description
Technical field
The present invention relates to it is a kind of can on-line checking pressure fault and rapid-maintenance hydrostatic bearing, belong to Machine Design neck
Domain.
Background technique
Hydrostatic bearing has many advantages, such as that running accuracy is high, oil film rigidity is big, can inhibit oil whip, be widely used in it is heavy,
On accurate, efficient machine and measuring device.But in actual operation, often because well cuts or machined burrs not
Clean out and generate the reasons such as impurity, cause aperture flow controller in hydrostatic bearing aperture be blocked, cause hydrostatic bearing without
Method works normally even locking.Currently, hydrostatic bearing there are the problem of it is as follows: (1) when orifice restriction device blocks, need
Hydrostatic bearing is removed from bearing block first, orifice restriction device is removed again from hydrostatic bearing then and is repaired, still
Since hydrostatic bearing and bearing block, orifice restriction device and hydrostatic bearing are all interference fits, rear original cooperation precision funeral is removed
It loses, hydrostatic bearing is eliminated.Using the prior art aperture can not be realized under conditions of not damaging hydrostatic bearing, bearing block
The maintenance or replacement of flow controller；(2) it is difficult to find whether orifice restriction device is blocked online, need hydrostatic bearing from equipment
On remove, logical upper pressure oil is checked.The prior art cannot detect aperture quilt when hydrostatic bearing is in running order
Blocking, prevents the generation of the accidents such as the locking of bearing.
Existing document gives a kind of easy assembling and disassembling device of orifice restriction device at present, but its bearing block be equipped with it is small
The position of hole flow controller is fixed by sleeve interference fit, and when dismounting orifice restriction device, first dismantle sleeve, must
Bearing block outer surface can so be damaged.In addition, aperture flow controller and hydrostatic bearing are interference fits in the device, orifice restriction device from
It is laid down in hydrostatic bearing, the inner hole surface of hydrostatic bearing and the outer surface of orifice restriction device will necessarily be destroyed, static pressure axis after dismantling
It holds and orifice restriction device is all scrapped.The technology that existing document provides, which does not still solve, is not damaging hydrostatic bearing, bearing block
Under the conditions of, realize the maintenance or replacement of orifice restriction device, it also can be with the pressure of on-line checking hydrostatic bearing without auxiliary device
Failure.
Summary of the invention
For the technical problem in background technique, the present invention disclose it is a kind of can on-line checking pressure fault and rapid-maintenance
The on-line checking of hydrostatic bearing working condition and pressure fault may be implemented in hydrostatic bearing；Meanwhile and aperture section can not damaged
In the case where flowing device, hydrostatic bearing and bearing block, rapid-maintenance and replacement are carried out to hydrostatic bearing.
To achieve the goals above, the technical solution adopted by the present invention is that:
It is a kind of can on-line checking pressure fault and rapid-maintenance hydrostatic bearing, the hydrostatic bearing includes: orifice restriction
Device, hydrostatic bearing, bearing block, interior hexagonal plug, crossover sub, pressure gauge etc..
The cylindrical surface of the orifice restriction device is machined with external screw thread, and center is provided with stepped hole, processes in its big nose end
There is line-styled slot.
The hydrostatic bearing is hollow cylinder, and outer surface is machined with annular groove, and inner surface is along the circumferential direction evenly distributed with 4 faces
Equal annular pressure chamber is accumulated, is threaded hole A and threaded hole B in each annular pressure chamber, wherein threaded hole A and aperture section
Stream device outer surface is coupled by screw thread, and threaded hole B is connected with crossover sub.
The bearing block is hollow cylinder, and inner surface and hydrostatic bearing are interference fitted, on the surface of bearing block with
Hydrostatic bearing upper screwed hole A and the corresponding position threaded hole B have conical screw hole and through-hole.Wherein, tapered thread
Hole is aligned with the center threaded hole A on hydrostatic bearing, and through-hole is aligned with the center threaded hole B on hydrostatic bearing.
Described crossover sub one end pass through bearing block on through-hole be connected with the threaded hole B on hydrostatic bearing, the other end and
The pressure gauge is connected, working condition and pressure fault for on-line checking hydrostatic bearing.
The interior hexagonal plug is cone, and outer surface is machined with tapered thread, is joined with the conical screw hole on bearing block
It connects and is sealed, the stub end end of interior hexagonal plug is provided with Hexagon hole.
When the orifice restriction device of hydrostatic bearing blocks, the pressure reduction of static pressure chamber, pressure gauge registration reduces, and passes through
The unexpected reduction of pressure gauge registration is to judge that orifice restriction device blocks, thus the pressure fault of on-line checking hydrostatic bearing.
It was found that interior hexagonal plug can be first laid down from bearing block with allen wrench, uses screw after the blocking of orifice restriction device
Knife is put in the line-styled slot of orifice restriction device end face, and orifice restriction device is laid down, and is repaired or is replaced, then again according to
It is secondary that orifice restriction device is attached on hydrostatic bearing, interior hexagonal plug is attached on bearing block, realize the rapid-maintenance of hydrostatic bearing
Or replacement.
Compared with the prior art, bring of the present invention has the beneficial effect that
(1) orifice restriction device can be realized under conditions of not damaging orifice restriction device, hydrostatic bearing and bearing block
Rapid-maintenance or replacement.It can not be repaired after solving the problems, such as the blocking of hydrostatic bearing orifice restriction device；
(2) when hydrostatic bearing works, can be by the variation of pressure gauge registration, real-time online detection orifice restriction device
It is no to block, prevent the generation of the accidents such as the locking of bearing early.
Detailed description of the invention
Fig. 1 is use state diagram of the invention；
Wherein: 1 hydrostatic bearing；2 threaded hole A；3 orifice restriction devices；Hexagonal plug in 4；5 crossover subs；6 pressure gauges；7 spiral shells
Pit B；8 bearing blocks.
Fig. 2 is the cross-sectional view of orifice restriction device；
Specific embodiment:
The invention will be further described below in conjunction with the accompanying drawings:
As shown in Figure 1 and 2, it is a kind of can on-line checking pressure fault and rapid-maintenance hydrostatic bearing, specifically include: aperture
Flow controller (3), hydrostatic bearing (1), bearing block (8), interior hexagonal plug (4), crossover sub (5), pressure gauge (6) etc..
The orifice restriction device (3) is cylinder, and outer surface is machined with external screw thread, and center is provided with stepped hole, big at it
Nose end is machined with line-styled slot.
The hydrostatic bearing (1) is hollow cylinder, and outer surface is machined with annular groove, and inner surface is along the circumferential direction evenly distributed with 4
The annular pressure chamber of a area equation is threaded hole A(2 in each annular pressure chamber) and threaded hole B(7), wherein screw thread
Hole A(2) coupled with orifice restriction device (3) outer surface by screw thread, threaded hole B(7) be connected with crossover sub (5).
The bearing block (8) is hollow cylinder, and inner surface and hydrostatic bearing (1) are interference fitted, in bearing block (8)
Conical screw hole is provided on surface at position corresponding with hydrostatic bearing (1) upper screwed hole A(2) and threaded hole B(7) and is led to
Hole.Wherein, conical screw hole is aligned with the center threaded hole A(2), the threaded hole B(7 on through-hole and hydrostatic bearing (1)) center pair
It is quasi-.
Described crossover sub (5) one end passes through through-hole and the threaded hole B(7 on hydrostatic bearing (1)) phase on bearing block (8)
Even, other end is connected with the pressure gauge (6), is used for the working condition and pressure fault of on-line checking hydrostatic bearing (1).
The interior hexagonal plug (4) is cone, and outer surface is machined with tapered thread, with the taper spiral shell on bearing block (8)
Pit connection sealing, the stub end end of interior hexagonal plug (4) is provided with Hexagon hole.
When hydrostatic bearing is in running order, pressure gauge (6) real-time online detects the pressure of static pressure chamber, works as orifice restriction
When device (3) blocks, the pressure reduction of static pressure chamber, pressure gauge (6) registration reduces, and passes through subtracting suddenly for pressure gauge (6) registration
It is small to judge that orifice restriction device (3) blocks, the generation of the accidents such as the locking of bearing can be prevented.
It was found that first interior hexagonal plug can be laid down from bearing block (8) with allen wrench after orifice restriction device (3) blocking
(4), it is put in screwdriver in the line-styled slot of orifice restriction device (3) end face, orifice restriction device (3) is laid down, is repaired
Or replacement, then successively orifice restriction device (3) is attached on hydrostatic bearing (1) again, interior hexagonal plug (4) is attached to bearing block
(8) on, rapid-maintenance or the replacement of hydrostatic bearing are realized.
Claims (1)
1. one kind can on-line checking pressure fault and rapid-maintenance hydrostatic bearing, which includes orifice restriction device, quiet
Last item holds, bearing block, interior hexagonal plug, crossover sub and pressure gauge, it is characterised in that: the hydrostatic bearing (1) is open circles
Cylindricality, the bearing block (8) are hollow cylinder, and inner surface and hydrostatic bearing (1) are interference fitted；Outside the orifice restriction device
Surface is machined with external screw thread, and end face is machined with straight slot；The hydrostatic bearing outer surface is machined with annular groove, inner surface circumference
Direction is evenly distributed with the annular pressure chamber of 4 area equations, is threaded hole A and threaded hole B in each annular pressure chamber, wherein spiral shell
Pit A is connected with orifice restriction device, and threaded hole B is connected with crossover sub；It is processed at position corresponding with threaded hole A on bearing block
There is conical screw hole, is machined with cylindrical hole at position corresponding with threaded hole B；Described crossover sub one end passes through bearing block
On through-hole be screwed into the threaded hole on hydrostatic bearing, the other end is connected with pressure gauge；The interior hexagonal plug outer surface is machined with
Tapered thread couples with the conical screw hole on bearing block and is sealed, and the pressure gauge can be with on-line checking annular pressure chamber
Pressure, so as to judge the working condition of hydrostatic bearing；When orifice restriction device (3) blocks, annular pressure chamber
Pressure reduction, pressure gauge (6) registration reduce, and judge that orifice restriction device (3) occur by the unexpected reduction of pressure gauge (6) registration
It blocks to prevent the generation of the locking accident of bearing, 4 interior hexagonal plugs on the bearing block can not destroy bearing block
In the case where dismount, orifice restriction device outer surface is threaded, and end face is machined with straight slot, can not destroy it is small
Rapid-assembling/disassembling in the case where hole flow controller and hydrostatic bearing, to realize the rapid-maintenance of hydrostatic bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611040831.7A CN106382302B (en) | 2016-11-24 | 2016-11-24 | It is a kind of can on-line checking pressure fault and rapid-maintenance hydrostatic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611040831.7A CN106382302B (en) | 2016-11-24 | 2016-11-24 | It is a kind of can on-line checking pressure fault and rapid-maintenance hydrostatic bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106382302A CN106382302A (en) | 2017-02-08 |
| CN106382302B true CN106382302B (en) | 2019-07-12 |
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| CN201611040831.7A Active CN106382302B (en) | 2016-11-24 | 2016-11-24 | It is a kind of can on-line checking pressure fault and rapid-maintenance hydrostatic bearing |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI649545B (en) * | 2017-04-20 | 2019-02-01 | 國立彰化師範大學 | Smart sensing device and smart sensing method for hydrostatic bearing |
| CN107122802A (en) * | 2017-05-02 | 2017-09-01 | 哈尔滨理工大学 | A kind of fault detection method based on the rolling bearing for improving wavelet neural network |
| CN108180220A (en) * | 2017-12-04 | 2018-06-19 | 陕西仙童科技有限公司 | A kind of hydrostatic gas-lubricated bearing device |
| CN110929345A (en) * | 2018-09-18 | 2020-03-27 | 立仲机械股份有限公司 | Intelligent sensing device and intelligent sensing method for hydrostatic bearing |
| CN114321179A (en) * | 2021-12-27 | 2022-04-12 | 西北农林科技大学 | Static pressure gas thrust bearing with adjustable throttle orifice parameters and centrifugal compressor |
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| SE394212B (en) * | 1975-10-09 | 1977-06-13 | Lidkoepings Mekaniska Verkstad | THROTTLE DEVICE AT A STORAGE POCKET IN A HYDROSTATIC STORAGE |
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| CN202091454U (en) * | 2011-05-17 | 2011-12-28 | 西安欣隆鼎机电科技有限公司 | Ultraprecise air flotation lead screw structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2030674U (en) * | 1988-05-09 | 1989-01-11 | 尉福生 | Mixing bearing with dynamic and static pressure |
| JP2880718B2 (en) * | 1988-12-21 | 1999-04-12 | カヤバ工業株式会社 | Hydraulic thrust bearing |
| JP2001132748A (en) * | 1999-11-05 | 2001-05-18 | Mitsubishi Heavy Ind Ltd | Fluid hydrostatic supporting and moving member and machine tool |
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|---|---|
| CN106382302A (en) | 2017-02-08 |
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Effective date of registration: 20190920 Address after: 100000 Beijing Tongzhou District Zhongguancun Science Park Tongzhou Park International Seed Industry Science Park Juhe Qijie 2-647 Patentee after: Beijing Zhengwuyou Technology Co., Ltd. Address before: 300222 Dagu South Road, Jinnan District, No. 1310, No. Patentee before: Tianjin University of Technology and Education |
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Effective date of registration: 20210721 Address after: 250000 science and Technology Park, Xincheng University, Jinan, Shandong Province Patentee after: Qilu University of Technology Address before: No.2-647, Juhe 7th Street, Tongzhou international seed industry science and Technology Park, Zhongguancun Science and Technology Park, Tongzhou District, Beijing Patentee before: Beijing Zhengwuyou Technology Co.,Ltd. |