CN102944213A - Radial deflection sensor of cylinder barrel - Google Patents
Radial deflection sensor of cylinder barrel Download PDFInfo
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- CN102944213A CN102944213A CN201210434590XA CN201210434590A CN102944213A CN 102944213 A CN102944213 A CN 102944213A CN 201210434590X A CN201210434590X A CN 201210434590XA CN 201210434590 A CN201210434590 A CN 201210434590A CN 102944213 A CN102944213 A CN 102944213A
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- cylinder barrel
- radial
- sensor bar
- radial deflection
- deflection sensor
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Abstract
The invention provides a radial deflection sensor of a cylinder barrel so as to solve the problem that the cylinder barrel cannot be subjected to online, real-time and accurate measurement by using the conventional measurement tool, and relates to the technical field of detection of a working state of a hydraulic cylinder. The radial deflection sensor of the cylinder barrel comprises the cylinder barrel, and is characterized in that a radial deflection sensor bar is encircled on the outer wall of the cylinder barrel; one end of the radial deflection sensor bar is a free end, and the other end of the radial deflection sensor bar is a fixed end; the free end of the radial deflection sensor bar is connected with a measurement instrument; and the fixed end of the radial deflection sensor bar is fixedly connected to the outer wall of the cylinder barrel. According to the radial deflection sensor of the cylinder barrel, the change of the circumference of the cylinder barrel is measured through the radial deflection sensor bar encircled on the outer wall of the cylinder barrel, so that the problems that the conventional length measurement tool is inconvenient to fix and mount and cannot finish automatic measurement are solved; and the barrel diameter change of the cylinder barrel is measured by measuring the circumference change of the cylinder barrel, the measurement value is amplified by pi times, the radial deflection sensor bar is encircled for n turns, and the measurement value is amplified by n*pi times, so that the measurement precision is high.
Description
Technical field:
The present invention relates to pressure cylinder duty detection technique field, relate in particular to a kind of cylinder barrel radial deformation quantity sensor.
Background technology:
Many engineering mechanical devices such as excavator, crane, shovel loader etc., comprise other special vehicles such as fire truck, and the various motions of its equipment are wherein adopted oil cylinder mechanism in a large number to adopt hydrostatic transmission to drive as main.In the system of oil cylinder executive component, hydraulic fault is embodied a concentrated reflection of out by executive components such as hydraulic jacks usually.When using these equipment, usually find that cylinder action is ineffective, oil cylinder is owed speed, produce the fault such as creep, cylinder barrel distortion or beam hanger are crooked, in addition detonation appears, the equipment unstability is collapsed, and leads to the serious consequence such as major accident.Tracing it to its cause, mostly is can not adapt to the normal running requirement because of analysis of hydraulic oil overheat, oil cylinder internal pressure deficiency, working condition, and the guidance tape excessive wear causes heat accumulation, and serious overload causes excessively high causing of in-cylinder pressure.Equipment failure not only affects the normal operation in the work progress, brings very large impact for construction quality and project progress, also causes security incident, works the mischief to the people life property safety.
Equipment is intelligent, and by adopting Modern Transducer Technology, digital communication and network technology, computer technology, the collection of information, processing, transmission, demonstration and highly integrated sharing adopt modern control device to realize device security, reliable, efficient operation.
The intelligence cylinder system can be in equipment work, in real time oil cylinder Working state analysis and demonstration, and report to the police, guarantee that hydraulically operated equipment (HOE) runs well, and improves the reliability of whole equipment, security.The engineering machinery working condition is complicated, and exposing to the weather drenches with rain, and pollution, dust etc., and the whole equipment of hydraulic system and engineering machinery is all caused adverse effect, and the oil cylinder long-term work is in such environment, and fault is unavoidable.Therefore, in order to obtain the safety under the implementing precondition in the safeguard work function and to improve oil cylinder serviceable life, the user needs to understand in real time the running parameter of oil cylinder, such as cylinder barrel distortion, the wearing and tearing of moving component and the impulse stroke of the temperature rise between friction zone, oil liquid temperature, pressure and oil cylinder, etc.
In the prior art, the detection of cylinder barrel deflection is also lacked the survey instrument of special use, general cylinder barrel deflection is weighed with the barrel dliameter variable quantity, but use traditional dimensional measuring instrument, be not easy to install and fix, can't finish automatic measurement and communication, and measuring accuracy is not high, and error is larger.
Summary of the invention:
The object of the present invention is to provide a kind of cylinder barrel radial deformation quantity sensor, the existing survey instrument of use can't carry out online in real time cylinder barrel to solve, the problem of Measurement accuracy.
For achieving the above object, the technical solution used in the present invention is:
A kind of cylinder barrel radial deformation quantity sensor, comprise cylinder barrel, it is characterized in that: be surrounded with the radial-deformation sensor bar on the described cylinder barrel outer wall, radial-deformation sensor bar one end is free end, one end is stiff end, the free end of described radial-deformation sensor bar connects measuring instrument, and the stiff end of described radial-deformation sensor bar is fixedly connected on the cylinder barrel outer wall.
Described radial-deformation sensor bar is the minimum thread or rope form software of axial elasticity deflection.
Described measuring instrument is for measuring the measurement mechanism of radial-deformation sensor bar free end travel amount.
At least around a circle, more around the number of turns, measuring accuracy is higher on the cylinder barrel outer wall for described radial-deformation sensor bar.
The minimum thread software of described axial elasticity deflection is tinsel.
The minimum rope form software of described axial elasticity deflection is wire rope.
Cover has the flexible shroud of radially nonelastic distortion on the described radial-deformation sensor bar, can play the purpose of protection radial-deformation sensor bar.
Described sheath one end is fixed, and the other end is free end.
When the barrel dliameter of cylinder barrel changes, the free end of radial-deformation sensor bar can be moved, can measure the free-ended displacement of radial-deformation sensor bar by being connected to the free-ended measuring instrument of radial-deformation sensor bar, thereby calculate the variable quantity of cylinder barrel barrel dliameter.
The variation that the present invention measures the cylinder barrel girth by the radial-deformation sensor bar that is looped around on the cylinder barrel outer wall has solved the conventional lengths survey instrument and has been inconvenient to fixedly mount, and can't finish the problem of automatic measurement; And the barrel dliameter variable quantity of measuring cylinder barrel realizes by the perimeter change amount of measuring cylinder barrel, and measured value is exaggerated π doubly, and the radial-deformation sensor bar is enclosed around n, and measured value then amplifies n π doubly, and measuring accuracy is high.
Description of drawings:
Fig. 1 is that the radial-deformation sensor bar is around the schematic diagram of cylinder barrel;
Fig. 2 is the schematic diagram that the radial-deformation sensor bar connects measuring instrument.
1. cylinder barrels wherein; 2. wire rope; 3. sheath; 4. measuring instrument; 21. stiff end; 22. free end.
Embodiment:
For technological means, character of innovation that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram and specific embodiment, further set forth the present invention, but be not to limit protection scope of the present invention.
Please refer to Fig. 1, Fig. 2, a kind of cylinder barrel radial deformation quantity sensor, comprise cylinder barrel 1, be surrounded with wire rope 2 on cylinder barrel 1 outer wall, wire rope 2 one ends are free end 22, one end is stiff end 21, and the free end 22 of wire rope 2 connects measuring instrument 4, and the stiff end 21 of wire rope 2 is fixedly connected on the outer wall of cylinder barrel 1; Cover has sheath 3, sheath 3 can play the purpose of protection wire rope 2 on the wire rope 2, plays simultaneously effect lubricated and that reduce friction, and sheath 3 one ends are fixed, and the other end is free end.
When the barrel dliameter of cylinder barrel 1 changes, the outer wall girth changes, the free end 22 of haulage cable 2 is moved, and the measuring instrument 4 of the free end 22 by being connected to wire rope 2 can be measured the displacement of wire rope free end 22, thereby calculates the variable quantity of cylinder barrel 1 barrel dliameter.
Above demonstration and described ultimate principle of the present invention, principal character and advantage of the present invention.It only is the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention, and the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (8)
1. cylinder barrel radial deformation quantity sensor, comprise cylinder barrel, it is characterized in that: be surrounded with the radial-deformation sensor bar on the described cylinder barrel outer wall, radial-deformation sensor bar one end is free end, one end is stiff end, the free end of described radial-deformation sensor bar connects measuring instrument, and the stiff end of described radial-deformation sensor bar is fixedly connected on the cylinder barrel outer wall.
2. cylinder barrel radial deformation quantity sensor according to claim 1, it is characterized in that: described radial-deformation sensor bar is the minimum thread or rope form software of axial elasticity deflection.
3. cylinder barrel radial deformation quantity sensor according to claim 1 is characterized in that: described measuring instrument is for measuring the measurement mechanism of radial-deformation sensor bar free end travel amount.
4. cylinder barrel radial deformation quantity sensor according to claim 2 is characterized in that: described radial-deformation sensor bar on the cylinder barrel outer wall at least around a circle.
5. cylinder barrel radial deformation quantity sensor according to claim 2, it is characterized in that: the minimum thread software of described axial elasticity deflection is tinsel.
6. cylinder barrel radial deformation quantity sensor according to claim 2, it is characterized in that: the minimum rope form software of described axial elasticity deflection is wire rope.
7. each described cylinder barrel radial deformation quantity sensor according to claim 1-6 is characterized in that: cover has the flexible shroud of radially nonelastic distortion on the described radial-deformation sensor bar.
8. cylinder barrel radial deformation quantity sensor according to claim 7, it is characterized in that: described sheath one end is fixed, and the other end is free end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210434590XA CN102944213A (en) | 2012-11-01 | 2012-11-01 | Radial deflection sensor of cylinder barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210434590XA CN102944213A (en) | 2012-11-01 | 2012-11-01 | Radial deflection sensor of cylinder barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102944213A true CN102944213A (en) | 2013-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210434590XA Pending CN102944213A (en) | 2012-11-01 | 2012-11-01 | Radial deflection sensor of cylinder barrel |
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| CN (1) | CN102944213A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604696A (en) * | 2013-11-18 | 2014-02-26 | 东南大学 | Local triaxial test method for bituminous mixture and radial displacement test device for bituminous mixture |
| CN106813567A (en) * | 2017-02-08 | 2017-06-09 | 重庆科技学院 | Rock sample radial displacement measurement apparatus |
| CN111964639A (en) * | 2020-07-08 | 2020-11-20 | 中国电力科学研究院有限公司 | Radial deformation measuring device of disc type suspension insulator steel foot |
| CN112268033A (en) * | 2020-09-21 | 2021-01-26 | 蚌埠隆华压铸机有限公司 | Internal leakage prevention device for hydraulic system of die casting machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2303265Y (en) * | 1997-08-26 | 1999-01-06 | 中国科学院武汉岩土力学研究所 | Sliding trough like ring deformation measuring arrangement |
| WO2006125903A1 (en) * | 2005-05-24 | 2006-11-30 | Universite Des Sciences Et Technologies De Lille | Collar for measuring the lateral deformation of a test piece during compression tests, such as uniaxial or triaxial compression tests |
| JP2009019878A (en) * | 2007-07-10 | 2009-01-29 | Ntt Infranet Co Ltd | Sensor for amount of deformation, measuring device for amount of deformation, and measuring method of deformation amount |
| CN101408419A (en) * | 2008-11-27 | 2009-04-15 | 湖南大学 | Device for testing swelling capacity of bulk materials |
-
2012
- 2012-11-01 CN CN201210434590XA patent/CN102944213A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2303265Y (en) * | 1997-08-26 | 1999-01-06 | 中国科学院武汉岩土力学研究所 | Sliding trough like ring deformation measuring arrangement |
| WO2006125903A1 (en) * | 2005-05-24 | 2006-11-30 | Universite Des Sciences Et Technologies De Lille | Collar for measuring the lateral deformation of a test piece during compression tests, such as uniaxial or triaxial compression tests |
| JP2009019878A (en) * | 2007-07-10 | 2009-01-29 | Ntt Infranet Co Ltd | Sensor for amount of deformation, measuring device for amount of deformation, and measuring method of deformation amount |
| CN101408419A (en) * | 2008-11-27 | 2009-04-15 | 湖南大学 | Device for testing swelling capacity of bulk materials |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604696A (en) * | 2013-11-18 | 2014-02-26 | 东南大学 | Local triaxial test method for bituminous mixture and radial displacement test device for bituminous mixture |
| CN103604696B (en) * | 2013-11-18 | 2017-02-15 | 东南大学 | Local triaxial test method for bituminous mixture and radial displacement test device for bituminous mixture |
| CN106813567A (en) * | 2017-02-08 | 2017-06-09 | 重庆科技学院 | Rock sample radial displacement measurement apparatus |
| CN111964639A (en) * | 2020-07-08 | 2020-11-20 | 中国电力科学研究院有限公司 | Radial deformation measuring device of disc type suspension insulator steel foot |
| CN112268033A (en) * | 2020-09-21 | 2021-01-26 | 蚌埠隆华压铸机有限公司 | Internal leakage prevention device for hydraulic system of die casting machine |
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Application publication date: 20130227 |