CN105738110A - Static state bearing testing device and method - Google Patents
Static state bearing testing device and method Download PDFInfo
- Publication number
- CN105738110A CN105738110A CN201610226670.4A CN201610226670A CN105738110A CN 105738110 A CN105738110 A CN 105738110A CN 201610226670 A CN201610226670 A CN 201610226670A CN 105738110 A CN105738110 A CN 105738110A
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- China
- Prior art keywords
- air bearing
- platform
- main shaft
- pedestal
- testing device
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
Abstract
The invention relates to a static air bearing testing device and method. The top of a base is provided with a platform where an air bearing is installed. The bottom of the base is arranged on a flat ground. A main shaft throughout the air bearing is arranged on the platform. Two ends of the main shaft are connected to a beam under the platform through pull bars, and the main shaft and the pull bars form a revolute joint through the bearing. The underneath of the middle part of the beam is connected to a force sensor. A hydraulic stretching device is installed under the force sensor and is connected to a manual controller. A dial gauge is fixed on the platform after the dial gauge moves on the platform. The dial gauge and the force sensor are connected to an instrument through data lines. The static air bearing testing device and method are mainly used for the static air bearing carrying capacity test, and measure the relation of the carrying capacity and the bearing state. A force value required by the test is generated through a hydraulic system. The size of the force value is accurately controlled through the sensor. The gap variation of the air bearing is tested through the dial gauge.
Description
Technical field
The present invention relates to a kind of air bearing, particularly to a kind of still air bearing testing device and method.
Background technology
A kind of frictionless bearing that air bearing is is medium with air, the axle system being generally used for high speed rotating state supports.Still air bearing is then the support for some in particular cases static axial system or micro-rotation axis system.The principle of still air bearing is far from each other with dynamic air bearing, so its test mode is also different from traditional bearing test mode.Accordingly, it would be desirable to a kind of still air bearing testing device and method are for the test of still air bearing load carrying capacity, bearing capacity and bearing state relation can be measured simultaneously.
Summary of the invention
It is an object of the invention to provide a kind of still air bearing testing device and method, test for still air bearing load carrying capacity, bearing capacity and bearing state relation can be measured simultaneously.
For achieving the above object, the technical solution used in the present invention is:
A kind of still air bearing testing device, it is characterized in that, including main shaft, amesdial, pull bar, crossbeam, force transducer, pedestal, hydraulic elongator, manual controller, instrument, described pedestal top has the platform installing air bearing, base bottom is placed in ground grading, described platform is arranged above with the main shaft through air bearing, main shaft two ends connect the crossbeam being positioned at below platform respectively through pull bar, and it is connected formation revolute pair by bearing between main shaft with pull bar, attachment force sensor below in the middle of crossbeam, equipped with hydraulic elongator below force transducer, hydraulic elongator connects manual controller, it is fixed on platform after described amesdial is mobile on platform, described amesdial and force transducer are connected in instrument by data wire.
Described pedestal is welding for steel structure body；The platform at described pedestal top there are some screwed holes, are used for fixing air bearing is installed；Air bearing is perpendicularly fixed at pedestal top or Horizontal type is fixed on pedestal top.
Main shaft is equal from air bearing end face distance through both sides after air bearing.
Hydraulic elongator upper end is fixing with force transducer to be connected, and lower end is fixed on pedestal bottom plate.Amesdial is scheduled on platform by the locking of bottom magnetic.
A kind of method of testing adopting still air bearing testing device, its testing procedure is:
1) air bearing is fixed on the platform of pedestal, ventilates for air bearing, make air bearing suspend；
2) by main shaft through air bearing, main spindle's is adjusted so that it is two ends distance air bearing end face is equal；
3) pull bar and crossbeam are installed successively, and connecting cross beam and force transducer；
4) amesdial is installed, makes amesdial probe contact with air bearing rotor bottom minimum point；
5) instrument monitoring amesdial and force sensor data are opened；
6) air bearing source of the gas is regulated so that it is reach normal suspended state；
7) manual controller controls hydraulic elongator motive force sensor, and by being rigidly connected, final power acts on main shaft and air bearing is produced downward radial pressure.
The invention has the beneficial effects as follows:
The present invention can be used for the test of still air bearing load carrying capacity, can measure bearing capacity and bearing state relation simultaneously.The present invention produces the required force value of test by hydraulic system, is accurately controlled force value size by sensor, tests air bearing gap change by amesdial.
Accompanying drawing explanation
Fig. 1 is the still air bearing testing device structural representation of the present invention.
Detailed description of the invention
Below by conjunction with accompanying drawing, embodiments of the invention are described in more detail.
As it is shown in figure 1, a kind of still air bearing testing device, including main shaft 3, amesdial 4, pull bar 5, crossbeam 6, force transducer 7, pedestal 8, hydraulic elongator 9, manual controller 10, instrument 11.
Pedestal 8 top has the platform installing air bearing, it is placed in ground grading bottom pedestal 8, described platform is arranged above with the main shaft 3 through air bearing, main shaft 3 two ends connect the crossbeam 6 being positioned at below platform respectively through pull bar 5, and it is connected formation revolute pair by bearing between main shaft 3 with pull bar 5, attachment force sensor 7 below in the middle of crossbeam 6, force transducer 7 is below equipped with hydraulic elongator 9, hydraulic elongator 9 connects manual controller 10, it is fixed on platform after described amesdial 4 is mobile on platform, described amesdial 4 and force transducer 7 are connected in instrument 11 by data wire.
Pedestal 8 is welding for steel structure body；The platform at pedestal 8 top there are some screwed holes, are used for fixing air bearing 1 is installed；Air bearing 1 is perpendicularly fixed at the platform at pedestal 8 top or Horizontal type is fixed on the platform at pedestal 8 top.
It is equal from air bearing 1 end face distance that main shaft 3 holds rear both sides through air axle 1.
Hydraulic elongator 9 upper end is fixing with force transducer 7 to be connected, and lower end is fixed on the base plate of pedestal 8.Amesdial 4 is scheduled on the platform of pedestal 8 by the locking of bottom magnetic.
A kind of method of testing adopting still air bearing testing device, its testing procedure is:
1) air bearing 1 is fixed on the platform of pedestal 8, ventilates for air bearing 1, make air bearing 1 suspend；
2) by main shaft 3 through air bearing 1, main shaft 3 position is adjusted so that it is two ends distance air bearing 1 end face is equal；
3) pull bar 5 and crossbeam 6 are installed successively, and connecting cross beam 6 and force transducer 7；
4) amesdial 4 is installed, makes amesdial 4 probe contact with minimum point bottom the rotor 2 of air bearing 1；
5) open instrument 11 and monitor amesdial 4 and force transducer 7 data；
6) air bearing 1 source of the gas is regulated so that it is reach normal suspended state；
7) manual controller 10 controls hydraulic elongator 9 motive force sensor 7, and by being rigidly connected, final power acts on main shaft 3 and air bearing 1 is produced downward radial pressure.
Claims (6)
- null1. a still air bearing testing device，It is characterized in that，Including main shaft (3)、Amesdial (4)、Pull bar (5)、Crossbeam (6)、Force transducer (7)、Pedestal (8)、Hydraulic elongator (9)、Manual controller (10)、Instrument (11)，It is characterized in that: described pedestal (8) top has the platform installing air bearing，Pedestal (8) bottom is placed in ground grading，Described platform is arranged above with the main shaft (3) through air bearing，Main shaft (3) two ends connect the crossbeam (6) being positioned at below platform respectively through pull bar (5)，And it is connected formation revolute pair by bearing between main shaft (3) with pull bar (5)，Attachment force sensor (7) below in the middle of crossbeam (6)，Force transducer (7) is below equipped with hydraulic elongator (9)，Hydraulic elongator (9) connects manual controller (10)，It is fixed on platform after described amesdial (4) is mobile on platform，Described amesdial (4) and force transducer (7) are connected in instrument (11) by data wire.
- 2. still air bearing testing device according to claim 1, it is characterised in that: described pedestal (8) is welding for steel structure body；The platform at described pedestal (8) top there are some screwed holes, are used for fixing air bearing (1) is installed；Air bearing (1) is perpendicularly fixed at the platform at pedestal top or Horizontal type is fixed on the platform at pedestal top.
- 3. still air bearing testing device according to claim 1, it is characterised in that: described main shaft (3) is equal through air bearing (1) both sides afterwards from air bearing (1) end face distance.
- 4. still air bearing testing device according to claim 1, it is characterised in that: described hydraulic elongator (9) upper end is fixing with force transducer (7) to be connected, and lower end is fixed on the base plate of pedestal (8).
- 5. still air bearing testing device according to claim 1, it is characterised in that: described amesdial (4) by the locking of bottom magnetic on the platform of pedestal (8).
- 6. adopting a method of testing for the arbitrary described still air bearing testing device of claim 1-5, its testing procedure is:1) air bearing (1) is fixed on the platform of pedestal (8), ventilates for air bearing (1), make air bearing (1) suspend；2) by main shaft (3) through air bearing (1), main shaft (3) position is adjusted so that it is two ends distance air bearing (1) end face is equal；3) pull bar (5) and crossbeam (6) be installed successively, and connecting cross beam (6) and force transducer (7)；4) amesdial (4) is installed, makes amesdial (4) probe contact with rotor (2) the bottom minimum point of air bearing (1)；5) instrument (11) monitoring amesdial (4) and force transducer (7) data are opened；6) air bearing (1) source of the gas is regulated so that it is reach normal suspended state；7) manual controller (10) controls hydraulic elongator (9) motive force sensor (7), by being rigidly connected, final power acts on main shaft (3) and above and air bearing (1) is produced downward radial pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610226670.4A CN105738110A (en) | 2016-04-13 | 2016-04-13 | Static state bearing testing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610226670.4A CN105738110A (en) | 2016-04-13 | 2016-04-13 | Static state bearing testing device and method |
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| Publication Number | Publication Date |
|---|---|
| CN105738110A true CN105738110A (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610226670.4A Pending CN105738110A (en) | 2016-04-13 | 2016-04-13 | Static state bearing testing device and method |
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| CN (1) | CN105738110A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596102A (en) * | 2016-12-05 | 2017-04-26 | 江苏大学 | Device and method of testing continuous loading of aerostatic thrust bearing |
| CN106769047A (en) * | 2017-01-09 | 2017-05-31 | 中国工程物理研究院机械制造工艺研究所 | A kind of radial rigidity measurement apparatus of the Aerostatic Spindle |
| CN108692835A (en) * | 2018-06-08 | 2018-10-23 | 北京金风科创风电设备有限公司 | Calibration system |
-
2016
- 2016-04-13 CN CN201610226670.4A patent/CN105738110A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596102A (en) * | 2016-12-05 | 2017-04-26 | 江苏大学 | Device and method of testing continuous loading of aerostatic thrust bearing |
| CN106769047A (en) * | 2017-01-09 | 2017-05-31 | 中国工程物理研究院机械制造工艺研究所 | A kind of radial rigidity measurement apparatus of the Aerostatic Spindle |
| CN108692835A (en) * | 2018-06-08 | 2018-10-23 | 北京金风科创风电设备有限公司 | Calibration system |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Tao Inventor after: Ji Honglei Inventor after: Zhang Zhimin Inventor after: Xia Bingyu Inventor after: Lin Jiejun Inventor after: Zuo Youdao Inventor before: Li Tao Inventor before: Ji Honglei Inventor before: Zhang Zhimin Inventor before: Xia Bingyu Inventor before: Lin Jiejun Inventor before: Zuo Youdao |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160706 |
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| RJ01 | Rejection of invention patent application after publication |