CN101776507A - Pressure sensor detecting device - Google Patents
Pressure sensor detecting device Download PDFInfo
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- CN101776507A CN101776507A CN200910215678A CN200910215678A CN101776507A CN 101776507 A CN101776507 A CN 101776507A CN 200910215678 A CN200910215678 A CN 200910215678A CN 200910215678 A CN200910215678 A CN 200910215678A CN 101776507 A CN101776507 A CN 101776507A
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Abstract
The invention relates to a pressure sensor detecting device, belonging to the field of detecting equipment. The pressure sensor detecting device comprises an oil tank, wherein the oil tank is respectively connected with the oil cylinders of a standard detecting cylinder and a detected cylinder through an oil pipe, an oil pump and a single-way valve; the static pressure bearing oil cavities of the standard detecting cylinder and the detected cylinder are connected with the oil tank through an oil pipe, an overflow valve, a single-way valve and an oil pump; the static pressure bearing oil cavities are installed at the upper and the lower ends of the inner cavity walls of the standard detecting cylinder and the detected cylinder; and oil leakage cavities are installed at the middle parts of the inner cavity walls of the standard detecting cylinder and the detected cylinder. The device better satisfies the actual need of each pressure sensor producing company and reasonably applies the static pressure bearing for the pressure detecting device, thereby greatly reducing the fault caused by the friction force of the common pressure detecting device and shortening the detecting time; and the device can realize the detection for high-precision and high-pressure sensor.
Description
Technical field
The present invention relates to the pick-up unit field, especially a kind of high-precision pressure sensor pick-up unit.
Background technology
As everyone knows, the sense cycle of high precision, high pressure sensor is long, and accuracy of detection is not high, is difficult to a large amount of productions.Pressure transducer manufacturer will deliver to special testing agency usually and test, and the cycle, long expense was also high.The manufacturer that has buys pick-up unit and detects voluntarily, but precision is generally not high.Along with various fields to improving constantly that high precision, high pressure sensor require, originally traditional checkout equipment has fettered the development of this series products.
Summary of the invention
In order to overcome the shortcoming of prior art, the invention provides a kind of pressure sensor detecting device, better meet the actual needs of each pressure transducer manufacturer, hydrostatic bearing reasonably is applied to pressure-detecting device, greatly reduces the usual pressure checkout equipment because the error brought of friction force and shorten detection time.
The technical solution adopted for the present invention to solve the technical problems is: a kind of pressure sensor detecting device, be provided with fuel tank, fuel tank connects the oil cylinder of standard detection cylinder and detected cylinder respectively through oil pipe, oil pump, retaining valve, the hydrostatic bearing oil pocket of standard detection cylinder and detected cylinder is through oil pipe, surplus valve, retaining valve, oil pump connected tank, the hydrostatic bearing oil pocket is located at the two ends up and down of standard detection cylinder and detected cylinder internal chamber wall, and standard detection cylinder and detected cylinder internal chamber wall middle part are processed with the draining chamber.
The present invention also can realize by following measure: the entrance point of retaining valve is parallel with accumulator.The inner chamber of fuel tank is connected with oil-temperature control device.
The invention has the beneficial effects as follows, better meet the actual needs of each pressure transducer manufacturer, hydrostatic bearing reasonably is applied to pressure-detecting device, the error brought of friction force and shorten detection time greatly reduces the usual pressure checkout equipment owing to can realize the detection to high precision, high pressure sensor.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is an oil pressure schematic diagram of the present invention.
Fig. 2 is the structural representation of standard detection cylinder of the present invention.
Fig. 3 is the A-A cut-open view of Fig. 2.
Fig. 4 is the structural representation of the detected cylinder of the present invention.
Fig. 5 is the B-B cut-open view of Fig. 4.
1. standard detection cylinders among the figure, 2. detected cylinder, 3. tensimeter, 4. tensimeter, 5. surplus valve, 6. surplus valve, 7. accumulator, 8. retaining valve, 9. oil pump, 10. filtrator, 11. fuel tank, 12. oil-temperature control devices, 13. tensimeters, 14. filtrator, 15. oil pumps, 16. retaining valves, 17. accumulator, 18. little static pressure axles, 19. little static pressure cylinder bodies, 20. cylinder bottom, 21. oil inlet pipes, 22. draining chambeies, 23. the hydrostatic bearing oil pocket, 24. oil-ins, 25. big static pressure axles, 26. big static pressure cylinder body, 27. cylinder bottoms, 28. oil inlet pipes, 29. the draining chamber, 30. hydrostatic bearing oil pockets, 31. oil-ins.
Embodiment
In Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, the present invention is provided with fuel tank 11, the inner chamber of fuel tank 11 is connected with oil-temperature control device 12, fluid temperature is in constant in the oil-temperature control device 12 control fuel tanks 11, guarantee that the precision of installing in the course of work is unaffected, fuel tank 11 is taken over filter 14, oil pump 15, retaining valve 16 successively through oil pipe, the oil-out place of retaining valve 16 is parallel with accumulator 17 and tensimeter 13, and the oil-out of retaining valve 16 connects the oil cylinder of standard detection cylinder 1 and detected cylinder 2 respectively through oil pipe.Fuel tank 11 is taken over filter 10 successively through oil pipe, oil pump 9, retaining valve 8, the oil-out place of retaining valve 8 is parallel with accumulator 7 and tensimeter 13, the oil-out of retaining valve 8 is connected through oil pipe also surplus valve 5 and surplus valve 6, the exit of surplus valve 5 and surplus valve 6 is connected with tensimeter 3 and tensimeter 4 respectively, the outlet of surplus valve 5 and surplus valve 6 is respectively through the hydrostatic bearing oil pocket 23 of oil pipe and standard detection cylinder 1 and detected cylinder 2, hydrostatic bearing oil pocket 30 is connected, the top and the bottom of little quiet cylinder body 19 internal chamber walls of standard detection cylinder 1 are processed with a hydrostatic bearing oil pocket 23 respectively, the middle part of little quiet cylinder body 19 internal chamber walls of standard detection cylinder 1 is processed with a draining chamber 22, on the cylinder bottom 20 of little quiet cylinder body 19 bottoms the oil inlet pipe 21 that is connected with oil cylinder is installed, the inner chamber of standard detection cylinder 1 is provided with little static pressure axle 18, oil-in 24 high pressure of hydraulic oil on cylinder wall of oil pump 9 suctions enter in the hydrostatic bearing oil pocket 23, thereby little static pressure axle 18 is wrapped in the effect of having played bearing between the hydraulic oil, hydraulic oil enters in the draining chamber 22 after hydrostatic bearing oil pocket 23 interior outflows, and is drained into the fuel tank 11 from draining chamber 22.The top and the bottom of big quiet cylinder body 26 internal chamber walls of detected cylinder 2 are processed with a hydrostatic bearing oil pocket 30 respectively, the middle part of big quiet cylinder body 26 internal chamber walls of detected cylinder 2 is processed with a draining chamber 29, on the cylinder bottom 27 of big quiet cylinder body 26 bottoms the oil inlet pipe 28 that is connected with oil cylinder is installed, the inner chamber of detected cylinder 2 is provided with big static pressure axle 25, oil-in 31 high pressure of hydraulic oil on cylinder wall of oil pump 9 suctions enter in the hydrostatic bearing oil pocket 29, thereby big static pressure axle 25 is wrapped in the effect of having played bearing between the hydraulic oil, hydraulic oil enters in the draining chamber 29 after hydrostatic bearing oil pocket 30 interior outflows, and is drained into the fuel tank 11 from draining chamber 29.
The present invention utilizes the principle of hydrostatic bearing, and pressure oil separates static pressure axle and static pressure cylinder intracoelomic cavity wall, makes the two in the minimum friction force of generation that relatively moves, and can overcome the upsetting moment that produces because of external applied load by a pair of hydrostatic bearing is set.Utilize the principle of linker, with the fluid connection in detected cylinder 2 and the standard detection cylinder 1 and keep identical pressure, standard weights and measurand are connected, can realize detection high precision, high pressure sensor by accurate correction with this.
Therefore little static pressure axle 18 of the present invention and big static pressure axle 25 axially produce very little friction force being the neat liquid friction between meeting maintenance and little quiet cylinder body 19 and big quiet cylinder body 26 internal chamber walls under the effect of pressure oil, and the viscosity that the while can reduce liquid reduces friction.Because of standard detection cylinder 1 is to be connected by linker with liquid in detected cylinder 2 cylinder bodies, can guarantee that internal pressure equates.
Hydrostatic bearing oil pocket 23 in little static pressure axle 18 and the little static pressure cylinder body 19 has constituted radially hydrostatic bearing of normal end, guarantees low-frictional force and bears the unbalance loading moment that standard weights produces.Little static pressure axle 18 has constituted axial hydrostatic bearing with cylinder bottom 20, and the two can change in the gap when standard weights changes, but the equivalent loaded area of the two composition can not change.
Big static pressure axle 25 constitutes radially hydrostatic bearing of detected end with hydrostatic bearing oil pocket 30 in the big static pressure cylinder body 26, guarantees low-frictional force and bears the unbalance loading moment that measurand produces.Big static pressure axle 25 constitutes axial piston with cylinder bottom 27, and the area of big static pressure axle 25 is fixed values.
By the ratio of definite normal end equivalent loaded area, just can detect big pressure transducer with little standard weights with big static pressure axle 25 areas.
Claims (3)
1. pressure sensor detecting device, be provided with fuel tank, it is characterized in that: fuel tank connects the oil cylinder of standard detection cylinder and detected cylinder respectively through oil pipe, oil pump, retaining valve, the hydrostatic bearing oil pocket of standard detection cylinder and detected cylinder is through oil pipe, surplus valve, retaining valve, oil pump connected tank, the hydrostatic bearing oil pocket is located at the two ends up and down of standard detection cylinder and detected cylinder internal chamber wall, and standard detection cylinder and detected cylinder internal chamber wall middle part are processed with the draining chamber.
2. according to the described pressure sensor detecting device of claim 1, it is characterized in that the entrance point of said retaining valve is parallel with accumulator.
3. according to the described pressure sensor detecting device of claim 1, it is characterized in that the inner chamber of said fuel tank is connected with oil-temperature control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910215678A CN101776507A (en) | 2009-12-29 | 2009-12-29 | Pressure sensor detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910215678A CN101776507A (en) | 2009-12-29 | 2009-12-29 | Pressure sensor detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101776507A true CN101776507A (en) | 2010-07-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910215678A Pending CN101776507A (en) | 2009-12-29 | 2009-12-29 | Pressure sensor detecting device |
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| CN (1) | CN101776507A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103064440A (en) * | 2012-11-30 | 2013-04-24 | 中国航空工业集团公司北京长城计量测试技术研究所 | Fluid pressure adjusting device and adjusting method based on semiconductor cooler |
| CN103234699A (en) * | 2013-05-09 | 2013-08-07 | 昆山市创新科技检测仪器有限公司 | Pressure sensor detection device and detection method thereof |
| CN103383295A (en) * | 2012-05-03 | 2013-11-06 | 上海大众汽车有限公司 | All-dimensional secondary pressure monitoring device and method of static pressure supporting system |
| CN103616130A (en) * | 2013-11-29 | 2014-03-05 | 宁波长壁流体动力科技有限公司 | Pressure sensor testing device |
| CN106289635A (en) * | 2016-07-28 | 2017-01-04 | 山西太钢不锈钢股份有限公司 | A kind of steam turbine vacuum measurement apparatus |
| CN112213027A (en) * | 2020-09-09 | 2021-01-12 | 中国第一汽车股份有限公司 | Rapid calibrating device and calibrating method for pressure sensor |
-
2009
- 2009-12-29 CN CN200910215678A patent/CN101776507A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383295A (en) * | 2012-05-03 | 2013-11-06 | 上海大众汽车有限公司 | All-dimensional secondary pressure monitoring device and method of static pressure supporting system |
| WO2013163851A1 (en) * | 2012-05-03 | 2013-11-07 | 上海大众汽车有限公司 | Omnidirectional secondary pressure monitoring device and method for static supporting system |
| CN103383295B (en) * | 2012-05-03 | 2015-10-21 | 上海大众汽车有限公司 | The comprehensive second pressure supervising device of hydrostatic support system and method |
| CN103064440A (en) * | 2012-11-30 | 2013-04-24 | 中国航空工业集团公司北京长城计量测试技术研究所 | Fluid pressure adjusting device and adjusting method based on semiconductor cooler |
| CN103064440B (en) * | 2012-11-30 | 2015-07-22 | 中国航空工业集团公司北京长城计量测试技术研究所 | Fluid pressure adjusting device and adjusting method based on semiconductor cooler |
| CN103234699A (en) * | 2013-05-09 | 2013-08-07 | 昆山市创新科技检测仪器有限公司 | Pressure sensor detection device and detection method thereof |
| CN103616130A (en) * | 2013-11-29 | 2014-03-05 | 宁波长壁流体动力科技有限公司 | Pressure sensor testing device |
| CN106289635A (en) * | 2016-07-28 | 2017-01-04 | 山西太钢不锈钢股份有限公司 | A kind of steam turbine vacuum measurement apparatus |
| CN112213027A (en) * | 2020-09-09 | 2021-01-12 | 中国第一汽车股份有限公司 | Rapid calibrating device and calibrating method for pressure sensor |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100714 |