CN207540787U - A kind of air hydrodynamic bearing detection device - Google Patents
A kind of air hydrodynamic bearing detection device Download PDFInfo
- Publication number
- CN207540787U CN207540787U CN201721714542.0U CN201721714542U CN207540787U CN 207540787 U CN207540787 U CN 207540787U CN 201721714542 U CN201721714542 U CN 201721714542U CN 207540787 U CN207540787 U CN 207540787U
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- detection
- cylinder body
- hydrodynamic bearing
- piston rod
- small
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Abstract
Utility model discloses a kind of air hydrodynamic bearing detection device, belongs to air hydrodynamic bearing field.Including detection sleeve and hydraulic unit driver, detection axis is slidably connected in the detection sleeve for a kind of air hydrodynamic bearing detection device.It, which can be realized in detection sleeve, slidably connects detection axis, air hydrodynamic bearing piece is placed between detection axis and fixed test plate, displacement sensor offsets with air hydrodynamic bearing piece and quickly detects deflection, valve piston in small cylinder body pushes small piston rod, small piston rod lower end offsets across small cylinder body with detection axis, pressure sensor detection institute between small piston rod and detection axis is loaded, so as to measure, hydraulic unit driver pushes big piston rod by hydraulic push rod, so as to which big piston rod pushes big piston movement, by the big piston movement in vat body so as to quickly valve piston be pushed to move, detection speed is efficient soon.
Description
Technical field
The utility model is related to air hydrodynamic bearing fields, detect and fill more specifically to a kind of air hydrodynamic bearing
It puts.
Background technology
At present, from the point of view of with regard to the aggregate analysis of lubrication technology and supporting form, gas bearing is occupied absolutely in four fields
Application advantage, i.e., high speed rotation, low friction low-power consumption, it is high-accuracy bearing and adaptation special operation condition under operating.It is each to bearing
The experiment measurement of a parameter is essential, and the Static stiffness of self-acting air bearing refers to bearing resistance to deformation under static load
Ability is an important indicator for characterizing bearing working performance, decides that the bearing capacity, dynamic property and high speed of bearing are transported
Turn stability etc..So a set of accurate, easy, practical bearing Static stiffness measuring device is that foil bearing shapes up, advances
Necessary condition.
Utility model content
To solve the above problems, the utility model adopts the following technical scheme.
A kind of air hydrodynamic bearing detection device including detection sleeve and hydraulic unit driver, is slided in the detection sleeve
Detection axis is connected with, the detection sleeve bottom end is fixedly connected with fixed test plate, between the detection axis and fixed test plate
Air hydrodynamic bearing piece is placed, through-hole is opened up in the middle part of the fixed test plate, displacement sensor is inserted in the through-hole, it is described
Displacement sensor test side offsets with air hydrodynamic bearing piece, and the detection sleeve upper end is fixedly connected with small cylinder body, described small
Valve piston is slidably connected in cylinder body, is fixedly connected with small piston rod on the downside of the valve piston, the small piston rod lower end passes through
Small cylinder body is placed in detection sleeve, and one end that the small piston rod is placed in detection sleeve offsets with detection axis, the valve piston
Pressure sensor is equipped between bar and detection axis, the small cylinder body upper end is connected with big cylinder body, and big cylinder body is communicated with small cylinder body,
Big piston is slidably connected in the vat body, the big piston on the side is fixedly connected with big piston rod, the hydraulic unit driver
Driving end is connected with hydraulic push rod, and the hydraulic push rod lower end is fixedly linked with big piston rod.
Preferably, it offers bearing on the detection sleeve and places mouth.
Preferably, the fixed test plate is fixedly connected on by fixing screws on detection sleeve.
Compared with the prior art, the utility model has the advantage of：
Slidably connect detection axis in detection sleeve, air hydrodynamic bearing piece be placed on detection axis and fixed test plate it
Between, displacement sensor offsets with air hydrodynamic bearing piece quickly detects deflection, and the valve piston in small cylinder body pushes small piston rod,
Small piston rod lower end offsets across small cylinder body with detection axis, the pressure sensor detection institute stand under load between small piston rod and detection axis
Lotus, so as to measure, hydraulic unit driver pushes big piston rod by hydraulic push rod, so as to which big piston rod pushes big piston to move
Dynamic, by the big piston movement in vat body so as to quickly valve piston be pushed to move, detection speed is efficient soon.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Figure label explanation：1 hydraulic unit driver, 2 big piston rods, 3 big pistons, 4 valve pistons, 5 pressure sensors, 6 detections
Sleeve, 7 air hydrodynamic bearing pieces, 8 fixing screws, 9 displacement sensors, 10 through-holes, 11 bearings place mouth, 12 detection axises, 13 small
Piston rod, 14 small cylinder bodies, 15 big cylinder bodies, 16 hydraulic push rods, 17 fixed test plates.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model；The technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe；Obviously；The described embodiments are only a part of the embodiments of the utility model；Rather than whole
Embodiment.Based on the embodiment in the utility model；Those of ordinary skill in the art are without making creative work
All other embodiments obtained；It shall fall within the protection scope of the present invention.
Embodiment 1：
Referring to Fig. 1, a kind of air hydrodynamic bearing detection device, including detection sleeve 6 and hydraulic unit driver 1, detection set
Detection axis 12 is slidably connected in cylinder 6,6 bottom end of detection sleeve is fixedly connected with fixed test plate 17, and detection axis 12 is examined with fixed
Air hydrodynamic bearing piece 7 is placed between drafting board 17,17 middle part of fixed test plate opens up through-hole 10, displacement biography is inserted in through-hole 10
Sensor 9,9 test side of displacement sensor offset with air hydrodynamic bearing piece 7, and 6 upper end of detection sleeve is fixedly connected with small cylinder body 14,
Valve piston 4 is slidably connected in small cylinder body 14,4 downside of valve piston is fixedly connected with small piston rod 13, and 13 lower end of small piston rod is worn
Too small cylinder body 14 is placed in detection sleeve 6, and one end that small piston rod 13 is placed in detection sleeve 6 offsets with detection axis 12, small work
Pressure sensor 5 is equipped between stopper rod 13 and detection axis 12, small 14 upper end of cylinder body is connected with big cylinder body 15, and big cylinder body 15 with it is small
Cylinder body 14 communicates, and big piston 3 is slidably connected in big cylinder body 15, and big 3 upside of piston is fixedly connected with big piston rod 2, and hydraulic pressure drives
Dynamic device 1 drives end to be connected with hydraulic push rod 16, and 16 lower end of hydraulic push rod is fixedly linked with big piston rod 2.
Bearing is offered on detection sleeve 6 and places mouth 11, convenient for placing bearing plate.
Fixed test plate 17 is fixedly connected on by fixing screws 8 on detection sleeve 6, consolidates fixed test plate 17, is improved
Accuracy of detection.
Operation principle：Detection axis 12 is slidably connected in detection sleeve 6, air hydrodynamic bearing piece 7 is placed on detection axis 12
Between fixed test plate 17, displacement sensor 9 offsets with air hydrodynamic bearing piece 7 quickly detects deflection, in small cylinder body 14
Valve piston 4 push small piston rod 13,13 lower end of small piston rod offsets across small cylinder body 14 with detection axis 12, small piston rod 13 and
The detection of pressure sensor 5 institute between detection axis 12 is loaded, and so as to measure, hydraulic unit driver 1 passes through hydraulic push rod 16
Big piston rod 2 is pushed, so as to which big piston rod 2 pushes big piston 3 to move, by the movement of big piston 3 in big cylinder body 15 so as to fast
Speed pushes valve piston 4 to move, and detection speed is efficient soon.
It is described above；The only preferable specific embodiment of the utility model；But the scope of protection of the utility model is not
It is confined to this；In the technical scope that any one skilled in the art discloses in the utility model；According to this practicality
Novel technical solution and its improvement design is subject to equivalent substitution or change；It should all cover in the scope of protection of the utility model
It is interior.
Claims (3)
1. a kind of air hydrodynamic bearing detection device, it is characterised in that：Including detecting sleeve（6）And hydraulic unit driver（1）, it is described
Detect sleeve（6）Inside slidably connect detection axis（12）, the detection sleeve（6）Bottom end is fixedly connected with fixed test plate
（17）, the detection axis（12）With fixed test plate（17）Between place air hydrodynamic bearing piece（7）, the fixed test plate
（17）Middle part opens up through-hole（10）, the through-hole（10）Inside it is inserted with displacement sensor（9）, institute's displacement sensors（9）Detection
End and air hydrodynamic bearing piece（7）It offsets, the detection sleeve（6）Upper end is fixedly connected with small cylinder body（14）, the small cylinder body
（14）Inside slidably connect valve piston（4）, the valve piston（4）Downside is fixedly connected with small piston rod（13）, the valve piston
Bar（13）Lower end passes through small cylinder body（14）It is placed in detection sleeve（6）In, the small piston rod（13）It is placed in detection sleeve（6）'s
One end and detection axis（12）It offsets, the small piston rod（13）With detection axis（12）Between be equipped with pressure sensor（5）, it is described small
Cylinder body（14）Upper end is connected with big cylinder body（15）, and big cylinder body（15）With small cylinder body（14）It communicates, the big cylinder body（15）Interior cunning
It is dynamic to be connected with big piston（3）, the big piston（3）Upside is fixedly connected with big piston rod（2）, the hydraulic unit driver（1）It drives
Moved end is connected with hydraulic push rod（16）, the hydraulic push rod（16）Lower end and big piston rod（2）It is fixedly linked.
2. a kind of air hydrodynamic bearing detection device according to claim 1, it is characterised in that：The detection sleeve（6）
On offer bearing place mouth（11）.
3. a kind of air hydrodynamic bearing detection device according to claim 1 or 2, it is characterised in that：The fixed test
Plate（17）Pass through fixing screws（8）It is fixedly connected on detection sleeve（6）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721714542.0U CN207540787U (en) | 2017-12-11 | 2017-12-11 | A kind of air hydrodynamic bearing detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721714542.0U CN207540787U (en) | 2017-12-11 | 2017-12-11 | A kind of air hydrodynamic bearing detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207540787U true CN207540787U (en) | 2018-06-26 |
Family
ID=62618061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721714542.0U Expired - Fee Related CN207540787U (en) | 2017-12-11 | 2017-12-11 | A kind of air hydrodynamic bearing detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207540787U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632568A (en) * | 2018-12-31 | 2019-04-16 | 北京科泰特科技发展有限公司 | A kind of air detecting device |
| CN110907290A (en) * | 2019-12-06 | 2020-03-24 | 中国科学院武汉岩土力学研究所 | Single-direction uniform force applying device under action of eccentric load and shear testing machine |
-
2017
- 2017-12-11 CN CN201721714542.0U patent/CN207540787U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632568A (en) * | 2018-12-31 | 2019-04-16 | 北京科泰特科技发展有限公司 | A kind of air detecting device |
| CN110907290A (en) * | 2019-12-06 | 2020-03-24 | 中国科学院武汉岩土力学研究所 | Single-direction uniform force applying device under action of eccentric load and shear testing machine |
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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: 20180626 Termination date: 20191211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |