CN201740615U - High-precision torque measuring device of hydrostatic bearing - Google Patents
High-precision torque measuring device of hydrostatic bearing Download PDFInfo
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- CN201740615U CN201740615U CN2010202582150U CN201020258215U CN201740615U CN 201740615 U CN201740615 U CN 201740615U CN 2010202582150 U CN2010202582150 U CN 2010202582150U CN 201020258215 U CN201020258215 U CN 201020258215U CN 201740615 U CN201740615 U CN 201740615U
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- floating part
- floating
- pressure oil
- supply system
- precision
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Abstract
The utility model relates to a torque measuring device of a hydrostatic bearing, consisting of a fixing part (1) and a floating part (2). The floating part (2) is fixedly connected with a measured rotary component (3); simultaneously, the floating part (2) is connected with a high-precision force sensor (5) through a hydrostatic bearing force arm (4); the fixing part (1) is arranged under the floating part (2); the device further comprises a high-pressure oil supply system, wherein the high-pressure oil supply system can supply high-pressure oil to a combining part of the fixing part (1) and the floating part (2); a high-pressure oil film is formed at the combining part of the fixing part (1) and the floating part (2). Using low friction coefficients and high sensitivity property of the high-pressure oil supplied by the high-pressure oil supply system, a torque affected by the rotary component on the bearing is transmitted to the high-precision force sensor through the force arm so as to realize an original position calibration and accurately reflect the torque property index of the to-be-measured rotary component.
Description
Technical field
The utility model relates to a kind of hydrostatic bearing torque-measuring apparatus.
Background technology
Existing torque measuring method commonly used is to use torque gauge, and its method feature is earlier torque gauge to be reserved at the caliberating device subscript of special use, installs back on the rotary part to be measured after taking off again and measures.This method is difficult to realize the original position demarcation, and the torque gauge of having demarcated puts in back in the rotary part process to be measured and causes zero point drift easily, the accuracy that influence is measured.
The utility model content
At the deficiency of existing torque measuring method, the utility model provides a kind of original position that can realize to demarcate, and accurately reflects the hydrostatic bearing torque-measuring apparatus of rotary part torsional performance index to be measured strictly according to the facts.
The utility model is made up of fixed part and floating part, and floating part is fixedlyed connected with tested rotary part, and floating part is connected with the high-precision force sensor by the hydrostatic bearing arm of force simultaneously; The below of floating part is a fixed part, also has high-pressure fuel supply system in addition, and described high-pressure fuel supply system can be supplied with hydraulic oil to fixed part (1) and floating part (2) joint portion, forms the high pressure oil film at fixed part (1) and floating part (2) joint portion.
Utilize the low-friction coefficient and the high sensitivity characteristic of the hydraulic oil of high-pressure fuel supply system supply, the moment of torsion that makes rotary part act on the bearing is delivered on the high-precision force sensor by the arm of force.
Above-mentioned high-precision force sensor is installed on the sensor holder, so that the moment of torsion that rotary part is acted on the bearing reflects by sensor more accurately.
On the described hydrostatic bearing arm of force protector for sensor is arranged, can prevent the damage that when moment of torsion is excessive sensor is caused.
The oil inlet pipe of described high-pressure fuel supply system and scavenge pipe are installed on the fixed part, for high-pressure fuel supply system provides circulating oil path.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is that measurement mechanism uses synoptic diagram among the utility model embodiment.
Wherein: 1-fixed part, 2-floating part, 3-rotary part, the 4-hydrostatic bearing arm of force, 5-high-precision force sensor, 6-sensor holder, 7-protector for sensor, 8-oil inlet pipe, 9-scavenge pipe.
Embodiment
Below further the utility model is described by specific embodiment.
As shown in Figure 1, high-precision static pressure bearing torque-measuring apparatus is made up of fixed part 1 and floating part 2 in the present embodiment, and floating part 2 is fixedlyed connected with tested rotary part 3, and floating part 2 is connected with high-precision force sensor 5 by the hydrostatic bearing arm of force 4 simultaneously; The below of floating part 2 is a fixed part 1, also has high-pressure fuel supply system in addition, and described high-pressure fuel supply system can be supplied with hydraulic oil to fixed part 1 and floating part 2 joint portions, forms the high pressure oil film at fixed part 1 and floating part 2 joint portions.The high-precision force sensor is installed on the sensor holder.
Before measuring, use the standard test weight of assay approval that sensor is carried out the original position demarcation earlier, as shown in Figure 2.
For hydraulic oil, oil pressure is 15～20kg/cm to high-pressure fuel supply system to oil inlet pipe
2, make the high pressure oil film that forms about 0.03mm between fixed part 1 and the floating part 2.The high pressure oil film significantly reduces the friction force between fixed part 1 and the floating part 2, and relative motion sensitivity rising, and is huge to the castering action of measuring sensitivity and precision.
The moment of torsion that rotary part acts on the bearing is delivered on the high-precision force sensor 5 by the hydrostatic bearing arm of force 4, and the output by force transducer can calculate torque value.
In the above-described embodiments,, on the hydrostatic bearing arm of force, protector for sensor is installed, is used for restriction arm of force displacement when moment of torsion is excessive, destroyed to prevent sensor for protection high-precision force sensor.
Claims (4)
1. high-precision static pressure bearing torque-measuring apparatus, it is characterized in that, be made up of fixed part (1) and floating part (2), floating part (2) is fixedlyed connected with tested rotary part (3), and floating part (2) is connected with high-precision force sensor (5) by the hydrostatic bearing arm of force (4) simultaneously; The below of floating part (2) is fixed part (1); Also have high-pressure fuel supply system in addition, described high-pressure fuel supply system can be supplied with hydraulic oil to fixed part (1) and floating part (2) joint portion, forms the high pressure oil film at fixed part (1) and floating part (2) joint portion.
2. high-precision static pressure bearing torque-measuring apparatus as claimed in claim 1 is characterized in that described high-precision force sensor is installed on the sensor holder (6).
3. high-precision static pressure bearing torque-measuring apparatus as claimed in claim 1 is characterized in that protector for sensor (7) is arranged on the described hydrostatic bearing arm of force (4).
4. high-precision static pressure bearing torque-measuring apparatus as claimed in claim 1 is characterized in that the oil inlet pipe (8) of described high-pressure fuel supply system and scavenge pipe (9) are installed on the fixed part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202582150U CN201740615U (en) | 2010-07-14 | 2010-07-14 | High-precision torque measuring device of hydrostatic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202582150U CN201740615U (en) | 2010-07-14 | 2010-07-14 | High-precision torque measuring device of hydrostatic bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201740615U true CN201740615U (en) | 2011-02-09 |
Family
ID=43555891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202582150U Expired - Fee Related CN201740615U (en) | 2010-07-14 | 2010-07-14 | High-precision torque measuring device of hydrostatic bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201740615U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048072A (en) * | 2012-12-14 | 2013-04-17 | 瓦房店轴承集团有限责任公司 | Bearing torque detection testing machine |
| CN103674367A (en) * | 2013-12-23 | 2014-03-26 | 江苏希西维轴承有限公司 | Equipment for measuring torque of rod end knuckle bearing of bulb |
| CN103341781B (en) * | 2013-07-04 | 2015-08-19 | 哈尔滨理工大学 | Hydrostatic bearing oil film thickness controlling system |
| CN106124310A (en) * | 2016-08-29 | 2016-11-16 | 无锡市海航电液伺服系统股份有限公司 | Combined load measurement apparatus |
| CN112484891A (en) * | 2020-12-09 | 2021-03-12 | 合肥通用机械研究院有限公司 | Dynamic seal contact surface friction rotation torque measuring device |
-
2010
- 2010-07-14 CN CN2010202582150U patent/CN201740615U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048072A (en) * | 2012-12-14 | 2013-04-17 | 瓦房店轴承集团有限责任公司 | Bearing torque detection testing machine |
| CN103341781B (en) * | 2013-07-04 | 2015-08-19 | 哈尔滨理工大学 | Hydrostatic bearing oil film thickness controlling system |
| CN103674367A (en) * | 2013-12-23 | 2014-03-26 | 江苏希西维轴承有限公司 | Equipment for measuring torque of rod end knuckle bearing of bulb |
| CN103674367B (en) * | 2013-12-23 | 2015-11-25 | 江苏希西维轴承有限公司 | A kind of equipment of measure-ball spherical plain bearing rod end moment of torsion |
| CN106124310A (en) * | 2016-08-29 | 2016-11-16 | 无锡市海航电液伺服系统股份有限公司 | Combined load measurement apparatus |
| CN106124310B (en) * | 2016-08-29 | 2019-08-23 | 无锡市海航电液伺服系统股份有限公司 | Combined load measuring device |
| CN112484891A (en) * | 2020-12-09 | 2021-03-12 | 合肥通用机械研究院有限公司 | Dynamic seal contact surface friction rotation torque measuring device |
| CN112484891B (en) * | 2020-12-09 | 2022-05-31 | 合肥通用机械研究院有限公司 | Dynamic seal contact surface friction rotation torque measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20130714 |