CN104180992B - A kind of measuring method of vertical hydrostatic bearing sensitivity - Google Patents
A kind of measuring method of vertical hydrostatic bearing sensitivity Download PDFInfo
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- CN104180992B CN104180992B CN201410476980.2A CN201410476980A CN104180992B CN 104180992 B CN104180992 B CN 104180992B CN 201410476980 A CN201410476980 A CN 201410476980A CN 104180992 B CN104180992 B CN 104180992B
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- hydrostatic bearing
- counterweight
- knife fork
- pulling force
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Abstract
The present invention relates to the measuring method of a kind of vertical hydrostatic bearing sensitivity, concretely comprise the following steps: pulling force silk is fixedly connected on the arm of force to be measured of hydrostatic bearing by (1)；(2) in the horizontal direction of arm of force downward vertical correspondence position to be measured, it is installed with the support seat of edge of a knife fork；(3) at 45 ° with angle correct block alignment edge of a knife fork, adjust pulling force silk and make pulling force silk level cross edge of a knife fork upper end and hang up scale pan；(4) starting hydrostatic bearing oil gear, start gradually to add counterweight in scale pan, differential one gram of counterweight, until hydrostatic bearing starts to wriggle, record counterweight and the conjunction of scale pan weight, according to measuring arm of force length, meter sensitivity.The present invention tests in the debugging of small-size hydroelectric equipment key lab hydrostatic bearing in national energy, and effect is ideal, and sensitivity measurements is less than 0.1Nm.
Description
Technical field
The invention belongs to analyze and survey control technology field, the measuring method of a kind of vertical hydrostatic bearing sensitivity.
Background technology
At present, torgue measurement is carried out by hydrostatic bearing mostly in high precision, and the sensitivity of vertical hydrostatic bearing exists mostly
0.1Nm-0.2Nm magnitude, measurement error typically requires as 0.01Nm-0.02Nm grammeter, and the error that horizontal force is measured is crucial,
Existing measuring method is difficult to meet requirement.
Through retrieval, do not find the disclosed patented technology identical with this technology.
Summary of the invention
In place of it is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of design science rationally, simple in construction, measurement
The measuring method of the vertical hydrostatic bearing sensitivity that precision is high.
The present invention solves it and technical problem is that and take techniques below scheme to realize:
A kind of measuring method of vertical hydrostatic bearing sensitivity, it is characterised in that:
The measurement apparatus that the method is used comprises support seat, edge of a knife fork, pulling force silk, balancing weight, angle calibration system block, counterweight
Dish, counterweight, support seat level and fix, and is hinged with an edge of a knife fork supporting seat lopsidedness, the level of this edge of a knife fork upper end
Direction is the arm of force to be measured, and in the arm of force to be measured affixed pulling force silk one end of edge of a knife fork upper end, this pulling force silk other end is sagging and mounts
Having a scale pan, this scale pan is used for containing measuring counterweight；The lower end of edge of a knife fork is through supporting seat and under supporting seat
It is fixed with a balancing weight on the edge of a knife fork of side, supports regulation above seat and one angle calibration system block is installed, this angle calibration system block alignment
Edge of a knife fork is from the horizontal by 45 ° of angles；
The method concretely comprises the following steps:
(1) pulling force silk is fixedly connected on the arm of force to be measured of hydrostatic bearing；
(2) in the horizontal direction of arm of force downward vertical correspondence position to be measured, it is installed with the support seat of edge of a knife fork；
(3) angle calibration system block alignment edge of a knife fork is from the horizontal by 45 ° of angles, adjusts pulling force silk and makes pulling force silk level cross
Edge of a knife fork upper end also hangs up scale pan；
(4) start hydrostatic bearing oil gear, start in scale pan, gradually add counterweight, differential one gram of counterweight, until static pressure axle
Holding and start to wriggle, record counterweight and scale pan weight sum, according to measuring arm of force length, meter sensitivity.
Advantages of the present invention and good effect be:
1, the principle that this method utilizes the friction of edge of a knife yaw theory to be zero, changes into level side by the counterweight of vertical direction by this device
To pulling force, test the positive and negative both direction of vertical hydrostatic bearing start under great pulling force wriggle, highly sensitive, horizontal force survey
Amount error is less than 0.01N.
2, the present invention tests in the debugging of small-size hydroelectric equipment key lab hydrostatic bearing in national energy, and effect is ideal,
Sensitivity measurements is less than 0.1Nm (10 grammeter).
Accompanying drawing explanation
Fig. 1 is instrumentation plan of the present invention.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings and by specific embodiment, and following example are illustrative, no
It is determinate, it is impossible to limit protection scope of the present invention with this.
The measuring method of a kind of vertical hydrostatic bearing sensitivity, as shown in drawings, the measurement apparatus that this measuring method is used comprises
Support seat 6, edge of a knife fork 5, pulling force silk 1, balancing weight 7, angle calibration system block 4, weight tray 3, counterweight 2, support seat water
Flat fixing, it is hinged with an edge of a knife fork supporting seat lopsidedness, the horizontal direction of this edge of a knife fork upper end is the arm of force 8 to be measured,
In the arm of force to be measured affixed pulling force silk one end of edge of a knife fork upper end, this pulling force silk other end is sagging and has mounted a scale pan, this weight
Code-disc is used for containing measuring counterweight；
The lower end of edge of a knife fork, through supporting seat and being fixed with a balancing weight on the edge of a knife fork supporting below seat, makes fork
Center of gravity is in knife-edge part, supports regulation above seat and is provided with an angle calibration system block 4, this angle calibration system block alignment edge of a knife fork and water
Square to angle at 45 °.
Concrete measuring method is:
(1) pulling force silk is fixedly connected on the arm of force to be measured of hydrostatic bearing；
(2) in the horizontal direction of arm of force downward vertical correspondence position to be measured, it is installed with the support seat of edge of a knife fork；
(3) at 45 ° with angle calibration system block alignment edge of a knife fork, adjust pulling force silk and make pulling force silk level cross edge of a knife fork upper end
And hang up scale pan；
(4) start hydrostatic bearing oil gear, start in scale pan, gradually add counterweight, differential one gram of counterweight, until static pressure axle
Holding and start to wriggle, record counterweight and the conjunction of scale pan weight, according to measuring arm of force length, meter sensitivity.
The principle utilizing the friction of edge of a knife yaw theory to be zero, changes into the pulling force of horizontal direction by the counterweight of vertical direction by this device,
Test the positive and negative both direction of vertical hydrostatic bearing to start to wriggle, to determine its sensitivity under great pulling force.
Although disclosing embodiments of the invention and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: not
Departing from the present invention and spirit and scope of the appended claims, various replacements, to change and modifications be all possible, therefore, and this
The scope of invention is not limited to embodiment and accompanying drawing disclosure of that.
Claims (1)
1. the measuring method of a vertical hydrostatic bearing sensitivity, it is characterised in that:
The measurement apparatus that the method is used comprises support seat, edge of a knife fork, pulling force silk, balancing weight, angle calibration system block, counterweight
Dish, counterweight, support seat level and fix, and is hinged with an edge of a knife fork supporting seat lopsidedness, the level of this edge of a knife fork upper end
Direction is the arm of force to be measured, and in the arm of force to be measured affixed pulling force silk one end of edge of a knife fork upper end, this pulling force silk other end is sagging and mounts
Having a scale pan, this scale pan is used for containing measuring counterweight；The lower end of edge of a knife fork is through supporting seat and under supporting seat
It is fixed with a balancing weight on the edge of a knife fork of side, supports regulation above seat and one angle calibration system block is installed, this angle calibration system block alignment
Edge of a knife fork is from the horizontal by 45 ° of angles；
The method concretely comprises the following steps:
(1) pulling force silk is fixedly connected on the arm of force to be measured of hydrostatic bearing；
(2) in the horizontal direction of arm of force downward vertical correspondence position to be measured, it is installed with the support seat of edge of a knife fork；
(3) angle calibration system block alignment edge of a knife fork is from the horizontal by 45 ° of angles, adjusts pulling force silk and makes pulling force silk level cross
Edge of a knife fork upper end also hangs up scale pan；
(4) start hydrostatic bearing oil gear, start in scale pan, gradually add counterweight, differential one gram of counterweight, until static pressure axle
Holding and start to wriggle, record counterweight and scale pan weight sum, according to measuring arm of force length, meter sensitivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410476980.2A CN104180992B (en) | 2014-09-18 | 2014-09-18 | A kind of measuring method of vertical hydrostatic bearing sensitivity |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410476980.2A CN104180992B (en) | 2014-09-18 | 2014-09-18 | A kind of measuring method of vertical hydrostatic bearing sensitivity |
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| CN104180992A CN104180992A (en) | 2014-12-03 |
| CN104180992B true CN104180992B (en) | 2016-08-24 |
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| CN102175369A (en) * | 2011-02-24 | 2011-09-07 | 上海大学 | Friction torque testing device for rolling bearing at low temperature |
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| JP2006017577A (en) * | 2004-07-01 | 2006-01-19 | Koyo Seiko Co Ltd | Inspection device and its inspection method |
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| CN2802484Y (en) * | 2005-05-24 | 2006-08-02 | 浙江大学 | Device for measuring microload friction of bearing |
| CN201149515Y (en) * | 2008-01-11 | 2008-11-12 | 福州闽台农产品设备有限公司 | Double knife-edges balance type electron dynamic weight-measuring device |
| CN101526407A (en) * | 2009-04-01 | 2009-09-09 | 南车株洲电力机车研究所有限公司 | Test method and device of variable-paddle bearing friction moment of wind-driven generator and application thereof |
| CN101706410A (en) * | 2009-11-30 | 2010-05-12 | 中国科学院力学研究所 | Knife edge support friction test device |
| CN102175369A (en) * | 2011-02-24 | 2011-09-07 | 上海大学 | Friction torque testing device for rolling bearing at low temperature |
| CN202547835U (en) * | 2012-05-21 | 2012-11-21 | 重庆市计量质量检测研究院 | Pure torque reference device |
| CN103308220A (en) * | 2013-01-05 | 2013-09-18 | 中国航空工业集团公司西安飞机设计研究所 | Small force measuring device |
| CN103335760A (en) * | 2013-06-26 | 2013-10-02 | 泉州市泉永机械发展有限公司 | Carrier roller starting torque measuring device |
| CN103528741A (en) * | 2013-10-25 | 2014-01-22 | 中国科学院西安光学精密机械研究所 | Device and method for testing friction torque of bearing under actual working conditions |
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| CN104180992A (en) | 2014-12-03 |
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