CN108981985A - A kind of axial-force testing device and its test method - Google Patents
A kind of axial-force testing device and its test method Download PDFInfo
- Publication number
- CN108981985A CN108981985A CN201810817794.9A CN201810817794A CN108981985A CN 108981985 A CN108981985 A CN 108981985A CN 201810817794 A CN201810817794 A CN 201810817794A CN 108981985 A CN108981985 A CN 108981985A
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- axial force
- driving device
- type driving
- axial
- output type
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 238000010998 test method Methods 0.000 title claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of axial-force testing device and its test methods, comprising: valve to be measured；Axial force output type driving device, axial force output type driving device are connect with valve to be measured；Axial force transducer connects the output shaft of axial force output type driving device and the valve rod of valve to be measured；Position sensor is arranged in axial force output type driving device and is capable of measuring the displacement of the output shaft of axial force output type driving device；Control unit；Axial force transducer signal cable connects axial force transducer and control unit；Axial force output type driving device cable, connects axial force output type driving device and control unit, axial force output type driving device cable are also connect with position sensor.Opening and closing axial force successive value corresponding with aperture (stroke) can be obtained during actual measurement to valve.
Description
Technical field
The invention belongs to valve detection technical field more particularly to a kind of axial-force testing device and its test methods
Background technique
The widely used more revolution straight stroke valves of industrial circle, such as gate valve, shut-off valve, throttle valve, plunger valve, diaphragm
Valve etc. will realize opening and closing, it is necessary to apply an axial force upward or downward to valve, apply axial force, can be liquid
It is dynamic, it is also possible to electric and pneumatic.It closes valve tight, enough seal pressures must be generated on sealing surface, this leads than pressure
(some may include pressure medium) if that is assigned by axial force.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems: according to domestic industry
Investigation and sci-tech novelty-search show the size for axial force, and the test and test of stability etc. are domestic still to belong to blank field, both
The means and equipment of valve axial force are not detected.The corresponding relationship that can not reflect axial force Yu aperture (stroke) position, because
This, is to the design of valve, manufacturing process, using bringing blindness, and due to a lack of valve axial force real data, in valve
It also often goes wrong in terms of the Matching and selection of door drive and valve, is frequently not that selection surplus causes to waste, is exactly axis
Deficiency is selected to power, normal use is unable to, seriously constrains technological progress and the increased quality in the field.
Summary of the invention
Technical problem to be solved by the invention is to provide one kind can obtain opening and closing during actual measurement to valve axially
The axial-force testing device and its test method of power successive value corresponding with aperture (stroke).
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that: a kind of axial-force testing device, tool
Have:
Valve to be measured；
Axial force output type driving device, the axial force output type driving device are connect with the valve to be measured；
Axial force transducer connects the output shaft of the axial force output type driving device and the valve of the valve to be measured
Bar；
Position sensor is arranged in the axial force output type driving device and is capable of measuring the driving of axial force output type
The displacement of the output shaft of device；
Control unit；
Axial force transducer signal cable connects the axial force transducer and control unit；
Axial force output type driving device cable connects the axial force output type driving device and control unit, described
Axial force output type driving device cable is also connect with the position sensor.
The axial force output type driving device be hydraulic cylinder or cylinder, the axial force output type driving device it is defeated
Shaft is the piston rod of the hydraulic cylinder or cylinder；The position sensor is capable of measuring the displacement of the piston rod.
The axial force output type driving device is valving；The valving includes:
Cabinet；
Jackshaft is installed in rotation in the cabinet；
Worm screw is fixed on the jackshaft；
Hollow shaft is installed in rotation in the cabinet, and the hollow shaft is vertical with the jackshaft；
Worm gear is fixedly mounted on the output shaft, and the worm gear and the worm screw cooperate；
Motor is arranged on the cabinet；The jackshaft is equipped with the shifting slide gear that can be moved axially；The electricity
The output shaft of machine is equipped with motor gear；The motor gear is engaged with the shifting slide gear；
Nut is fixed in the hollow shaft；
Output shaft can be moved across the hollow shaft and in the hollow shaft, the output shaft periphery be equipped with it is described
The external screw thread of nut cooperation.
The valving further include:
Handwheel is installed in rotation on the cabinet；
Power can be transmitted on the jackshaft by gear mechanism, the gear mechanism from the shaft of the handwheel.
The gear mechanism is bevel gear set, and the bevel gear set includes being fixed in the shaft of the handwheel
First bevel gear and it is arranged in the cabinet and second bevel gear compatible with the first bevel gear；Second cone
Gear is equipped with transition gear；In the shifting slide gear moving process, it is described can shifting slide gear can be with the motor tooth
Wheel or transition gear engagement.
The cabinet is equipped with the shift fork for stirring the shifting slide gear sliding.
Memory, printer and display are equipped in described control unit.
The test method of above-mentioned axial-force testing device, when measurement, valve to be measured must be in pressure testing operating condition, i.e.,
There is load；
The operating of axial force output type driving device, the displacement of position sensor inductive output axis, output pulse is to controlling list
Member counts, which enters the processing of control unit record；
The operating of axial force output type driving device, valve stem coupling member drive the lifting of measured valve valve rod, cause axial force sensing
There is axial force in the both ends of device, and strain sheet resistance values therein change, are converted into analogue data through A/D and are converted into number
Signal enters control unit；
All data-signals export control axial force output type driving device after control unit is handled, through circuit breaker
Operation；Control unit connects computer, shows real time data, passes through the data of printer printout display.
A technical solution in above-mentioned technical proposal has the following advantages that or beneficial effect, can not only exist to valve
Opening and closing axial force successive value corresponding with aperture (stroke) is obtained during actual measurement, and can show on computers in real time,
Storage, output.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the axial-force testing device provided in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the axial-force testing device of Fig. 1；
Fig. 3 is the structural schematic diagram of the axial force output type driving device of the axial-force testing device of Fig. 1；
Fig. 4 is the B-B cross-sectional view of Fig. 3；
Fig. 5 is the A-A cross-sectional view of Fig. 4；
Label in above-mentioned figure is equal are as follows: 1, position sensor, 2, axial force output type driving device, 3, axial force sensing
Device, 4, valve stem coupling member, 5, measured valve valve rod, 6, measured valve, 7, control unit, 8, memory, 9, measured valve connection
Flange, 10, cabinet, 11, motor, 12, jackshaft, 13, worm screw, 14, hollow shaft, 15, handwheel, 16, shift fork, 17, worm gear.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment one
Referring to Fig. 1-5, a kind of axial-force testing device, comprising:
Valve to be measured；
Axial force output type driving device, axial force output type driving device are connect with valve to be measured；
Axial force transducer connects the output shaft of axial force output type driving device and the valve rod of valve to be measured；
Position sensor is arranged in axial force output type driving device and is capable of measuring axial force output type driving device
Output shaft displacement；
Control unit；
Axial force transducer signal cable connects axial force transducer and control unit；
Axial force output type driving device cable, connects axial force output type driving device and control unit, axial force are defeated
Type driving device cable is also connect with position sensor out.
Axial force output type driving device is hydraulic cylinder or cylinder, and the output shaft of axial force output type driving device is liquid
The piston rod of cylinder pressure or cylinder；Position sensor is capable of measuring the displacement of piston rod.
Axial force output type driving device is valving；Valving includes:
Cabinet；
Jackshaft is installed in rotation in cabinet；
Worm screw is fixed on jackshaft；
Hollow shaft is installed in rotation in cabinet, and hollow shaft is vertical with jackshaft；
Worm gear is fixedly mounted on output shaft, and worm gear and worm screw cooperate；
Motor is arranged on cabinet；Jackshaft is equipped with the shifting slide gear that can be moved axially；On the output shaft of motor
Equipped with motor gear；Motor gear is engaged with shifting slide gear；
Nut is fixed in hollow shaft；
Output shaft can be moved across hollow shaft and in hollow shaft, and output shaft periphery is equipped with the outer spiral shell cooperated with nut
Line.
Valving further include:
Handwheel is installed in rotation on cabinet；
Power can be transmitted on jackshaft by gear mechanism, gear mechanism from the shaft of handwheel.
Gear mechanism is bevel gear set, bevel gear set include the first bevel gear being fixed in the shaft of handwheel and
It is arranged in cabinet and second bevel gear compatible with first bevel gear；Second bevel gear is equipped with transition gear；It is sliding
In gear moving process, can shifting slide gear can be engaged with motor gear or transition gear.
Cabinet is equipped with the shift fork for stirring shifting slide gear sliding.
Memory, printer and display are equipped in control unit.
Axial force transducer is mounted between driving device and measured valve, and acquisition is due to valve opening and closing pushes and pulls axial force
The deformation quantity of generation is transmitted to control unit after A/D processing is digital signal.
Position sensor is located in axial force output driving device, and driving device operating drives position sensor, is generated
Control unit is transmitted to after pulse signal.
The lifting (opening and closing of valve) of axial force output driving device, omicronff signal transmission to control unit.
The operation of computer control axial force output driving device simultaneously connects control unit, display display real time data,
After adopting the above scheme, as using data acquisition technology to axial force caused by valve opening and closing, the aperture of valve opening and closing
(stroke) real-time sampling simultaneously records.It can be handled by computer, axial force and aperture pair in output valve opening-closing process
The curve answered, and record, print and export.
The understanding that comprehensive quantitative visualization can be carried out to the axial force variation occurred in the opening-closing process of valve, to valve
It leads to the problem of and is analyzed in design, manufacture and use.
Correct apolegamy for valve actuator and valve provides foundation, and the factor big with valve axial force is influenced carries out
Analysis and research are most suitable for reaching the matching of valve actuator and valve, are most reliable, most economical.Improve valve products quality
Resolving ideas is provided with service life.
Embodiment two
A kind of test method of above-mentioned axial-force testing device, position sensor are located at axial force output type driving dress
In setting.When measurement, valve to be measured must be in pressure testing operating condition, that is, have load；
The operating of axial force output type driving device, the displacement of position sensor inductive output axis, output pulse is to controlling list
Member counts, which enters the processing of control unit record；
The operating of axial force output type driving device, valve stem coupling member drive the lifting of measured valve valve rod, cause axial force sensing
There is axial force in the both ends of device, and strain sheet resistance values therein change, are converted into analogue data through A/D and are converted into number
Signal enters control unit；
All data-signals export control axial force output type driving device after control unit is handled, through circuit breaker
Operation；Control unit connects computer, shows real time data, passes through the data of printer printout display.
After above-mentioned scheme, opening and closing axial force and aperture (row can be not only obtained during actual measurement to valve
Journey) corresponding successive value, and can show on computers in real time, store, export.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by above-mentioned side
The limitation of formula, if the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out is used, or without
It improves the conception and technical scheme of the invention are directly applied to other occasions, it is within the scope of the present invention.
Claims (8)
1. a kind of axial-force testing device comprising:
Valve to be measured；
Axial force output type driving device, the axial force output type driving device are connect with the valve to be measured；
Axial force transducer connects the output shaft of the axial force output type driving device and the valve rod of the valve to be measured；
Position sensor is arranged in the axial force output type driving device and is capable of measuring axial force output type driving device
The displacement of output shaft；
Control unit；
Axial force transducer signal cable connects the axial force transducer and control unit；
Axial force output type driving device cable, connects the axial force output type driving device and control unit, the axial direction
Power output type driving device cable is also connect with the position sensor.
2. axial-force testing device as described in claim 1, which is characterized in that the axial force output type driving device is liquid
Cylinder pressure or cylinder, the output shaft of the axial force output type driving device are the piston rod of the hydraulic cylinder or cylinder；Institute's rheme
Set the displacement that sensor is capable of measuring the piston rod.
3. axial-force testing device as described in claim 1, which is characterized in that the axial force output type driving device is valve
Door gear；The valving includes:
Cabinet；
Jackshaft is installed in rotation in the cabinet；
Worm screw is fixed on the jackshaft；
Hollow shaft is installed in rotation in the cabinet, and the hollow shaft is vertical with the jackshaft；
Worm gear is fixedly mounted on the output shaft, and the worm gear and the worm screw cooperate；
Motor is arranged on the cabinet；The jackshaft is equipped with the shifting slide gear that can be moved axially；The motor it is defeated
Shaft is equipped with motor gear；The motor gear is engaged with the shifting slide gear；
Nut is fixed in the hollow shaft；
Output shaft can be moved across the hollow shaft and in the hollow shaft, and the output shaft periphery is equipped with and the nut
The external screw thread of cooperation.
4. axial-force testing device as claimed in claim 3, which is characterized in that the valving further include:
Handwheel is installed in rotation on the cabinet；
Power can be transmitted on the jackshaft by gear mechanism, the gear mechanism from the shaft of the handwheel.
5. axial-force testing device as claimed in claim 4, which is characterized in that the gear mechanism is bevel gear set, described
Bevel gear set include the first bevel gear being fixed in the shaft of the handwheel and be arranged in the cabinet and with it is described
The compatible second bevel gear of first bevel gear；The second bevel gear is equipped with transition gear；It is mobile in the shifting slide gear
In the process, it is described can shifting slide gear can be engaged with the motor gear or transition gear.
6. axial-force testing device as claimed in claim 5, which is characterized in that the cabinet is equipped with and stirs the sliding tooth
The shift fork of slipping.
7. axial-force testing device as claimed in claim 6, which is characterized in that be equipped with memory in described control unit, beat
Print machine and display.
8. a kind of test method of axial-force testing device as claimed in claim 2 or claim 3, which is characterized in that be measured when measurement
Valve must be in pressure testing operating condition, that is, have load；
The operating of axial force output type driving device, the displacement of position sensor inductive output axis, output pulse to control unit meter
Number, the data enter the processing of control unit record；
The operating of axial force output type driving device, valve stem coupling member drive the lifting of measured valve valve rod, cause axial force transducer
There is axial force in both ends, and strain sheet resistance values therein change, be converted into analogue data through A/D be converted into digital signal into
Enter control unit；
All data-signals export the operation of control axial force output type driving device through circuit breaker after control unit is handled；
Control unit connects computer, shows real time data, passes through the data of printer printout display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810817794.9A CN108981985A (en) | 2018-07-24 | 2018-07-24 | A kind of axial-force testing device and its test method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810817794.9A CN108981985A (en) | 2018-07-24 | 2018-07-24 | A kind of axial-force testing device and its test method |
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| CN108981985A true CN108981985A (en) | 2018-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810817794.9A Pending CN108981985A (en) | 2018-07-24 | 2018-07-24 | A kind of axial-force testing device and its test method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551299A (en) * | 2020-03-20 | 2020-08-18 | 成都乘风阀门有限责任公司 | Gate valve opening and closing thrust continuous testing device and working method thereof |
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|---|---|---|---|---|
| US5396167A (en) * | 1993-06-03 | 1995-03-07 | Liberty Technologies, Inc. | Method for remotely determining operability of motor operated valves |
| US5469737A (en) * | 1993-12-20 | 1995-11-28 | Westinghouse Electric Corporation | Method and apparatus for measuring the axial load and position of a valve stem |
| CN101852661A (en) * | 2009-03-31 | 2010-10-06 | 项美根 | Valve torque continuous test device and test method thereof |
| CN102607752A (en) * | 2011-01-21 | 2012-07-25 | 黄山良业阀门有限公司 | Device for continuously testing opening and closing torques of valve pneumatic device and test method |
| CN105424349A (en) * | 2015-12-16 | 2016-03-23 | 常州电站辅机总厂有限公司 | Device for testing service life of multi-turn valve electric device |
| CN208805303U (en) * | 2018-07-24 | 2019-04-30 | 黄山良业智能控制股份有限公司 | A kind of axial-force testing device |
-
2018
- 2018-07-24 CN CN201810817794.9A patent/CN108981985A/en active Pending
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|---|---|---|---|---|
| US5396167A (en) * | 1993-06-03 | 1995-03-07 | Liberty Technologies, Inc. | Method for remotely determining operability of motor operated valves |
| US5469737A (en) * | 1993-12-20 | 1995-11-28 | Westinghouse Electric Corporation | Method and apparatus for measuring the axial load and position of a valve stem |
| CN101852661A (en) * | 2009-03-31 | 2010-10-06 | 项美根 | Valve torque continuous test device and test method thereof |
| CN102607752A (en) * | 2011-01-21 | 2012-07-25 | 黄山良业阀门有限公司 | Device for continuously testing opening and closing torques of valve pneumatic device and test method |
| CN105424349A (en) * | 2015-12-16 | 2016-03-23 | 常州电站辅机总厂有限公司 | Device for testing service life of multi-turn valve electric device |
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Non-Patent Citations (1)
| Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111551299A (en) * | 2020-03-20 | 2020-08-18 | 成都乘风阀门有限责任公司 | Gate valve opening and closing thrust continuous testing device and working method thereof |
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