CN2073113U - Tester for hand pulling force - Google Patents
Tester for hand pulling force Download PDFInfo
- Publication number
- CN2073113U CN2073113U CN 90221808 CN90221808U CN2073113U CN 2073113 U CN2073113 U CN 2073113U CN 90221808 CN90221808 CN 90221808 CN 90221808 U CN90221808 U CN 90221808U CN 2073113 U CN2073113 U CN 2073113U
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- pulling force
- hand pulling
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- force
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- 238000013461 design Methods 0.000 claims abstract description 7
- 238000005070 sampling Methods 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- 230000003278 mimic effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 13
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 210000003857 wrist joint Anatomy 0.000 description 1
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model provides a tester for hand pulling force which is composed of a sensor for hand pulling force and a digital display meter, and is suitable for measurement of control force for parking and braking of an automobile and hand pulling force of other joysticks. The utility model has the advantages of compact design and small size in the longitudinal direction, can eliminate the influence of deflecting force and moment protection, and can be installed and clamped on a measured draw rod with various forms and dimensions. Samples, holding circuits and digital latch circuits are designed in the digital display meter. The utility model not only can display each instantaneous value of hand pulling force, but also automatically catch and display the maximal value of hand pulling force which can be kept on a display board permanently. The utility model also has the advantage of sensitive reflection, and each precision and index can meet test requirements.
Description
What the utility model related to a kind of power that pulls of measuring the hand pulling type operating rod, particularly measured automobiles parking braking system control lever pulls the force measurement instrument.
In the assessment of performance of parking braking system of automobile, normally require under certain parking braking control, to detect other several performance index.The control device general type of automobile parking braking is the hand pulling type operating rod.Therefore, put on the power that the pulls index on this operating rod, just become a big event that detects car mass.
For this reason, each big automobile production state of the world has all carried out the testing of automobile parking braking earlier, and has developed and produced the instrumentation that detects the automobile parking braking control--pull force tester.The manual tension meter of producing as Japanese republicanism electric industry Co., Ltd. (hand Block レ-≠ meter) etc.Can up to the present also there be a special use that designs voluntarily, makes to pull the force tester device on the China market.Though in National Standard People's Republic of China (PRC) motor vehicle security of operation technical conditions (GB7258-87) " and standards such as " automobile parking braking performance requirement (JB4119-85) " in adversary's pulling force index regulation is arranged clearly, but detection means for want of, and can't make it obtain correct implementing, carry out.Present China most of Automobile Detection department and factory, when the needs detection pulls power, also just simply measure with spring or with common tension-compression sensor on the rope bolt, so no matter on the measurement function or on measuring accuracy, all can't meet the demands, and measure operating mode and practical operation operating mode and differ greatly, can't obtain the power that pulls performance index accurate, science.
The purpose of this utility model is to provide a cover by pulling the force tester that pulls that force transducer and digital displaying meter form.Its metering system approaches the practical operation operating mode, can automatically get rid of the influence of angular force and moment of torsion, decapacitation shows outside each instantaneous hand value of thrust, can also automatically catch, show and keep maximum hand value of thrust, and the power that pulls of various forms, size operating rod that can be applicable to is in the ordinary course of things measured.
The purpose of this utility model is achieved in that but a pure bending beam type flexible member that posts resistance strain gage is loaded in the column type handle of garden, and links by load transfer device and the adjustable clamp that has universal joint, constitutes a complete force transducer that pulls; Design has sampling, holding circuit and digital latch circuit in digital displaying meter.Because the flexible member of sensor is to be built in the handle, in design, just can make the distance of sensor handle and tested pull bar shorter.And be that test handle by sensor spurs tested pull bar in test, be not the tested pull bar of direct pull as practical operation, therefore above-mentioned distance is short more, and test is more near actual condition.Gimbal structure in the sensor, can guarantee to have only unidirectional pulling force to act on flexible member, thereby get rid of because the influence when rotating the moment of torsion that caused of angular force that pulling direction deflection produces and human body wrist joint to the unidirectional pulling force of sensor test by load transfer device.By regulating the size that to debug chucking opening in the sensor, can be installed on sensor on the tested pull bar of multi-form, size.In the digital displaying meter of the present utility model, it is in test process that design has sampling, a holding circuit, can capture the maximal value of the tested power of pulling in time, again by the digital latch circuit in its digital displaying meter, after each off-test, the maximal value of this process for good and all is latched on the display board.
The utility model is because approach the practical operation operating mode on metering system, and can get rid of the influence of unbalance loading and moment of torsion, so it can guarantee truly, accurately measure the science numerical value of the tested power of pulling.Universal anchor clamps have increased the scope of application of sensor and have brought convenience to test.And sample, keep function and digital latch function in the digital displaying meter automatically, can make testing crew in the hand value of thrust of transient change, obtain required peak-peak easily.
Describe in detail according to concrete structure and the working condition that the utility model proposes below in conjunction with accompanying drawing.
Fig. 1 is according to the sectional view that pulls force transducer that the utility model proposes.It is formed its main body by the handle (1) of sensor and sensor element (2) and forms load transfer device by reverser (3), transmission rod (4) and universal joint (5), and universal joint (5) and adjustable clamp (7) are linked, constitute a complete force transducer that pulls.
Sensor can be installed on the tested pull bar (8) by anchor clamps (7), and the size by nut (6) alignment jig opening D and tighten anchor clamps.In the use, the power F of applying just spurs sensor to handle (1), thereby spur tested pull bar (8), tested pull bar (8) acts on the reacting force P on the anchor clamps (7), act on the sensor element (2) by the load transfer device that has universal joint (5), make sensor element (2) produce flexural deformation, being transformed into electric weight by the dynamometry physical quantity.Because for the shortest, the distance that arrives tested pull bar (8) with the handle (1) that reaches sensor is the shortest purpose to the longitudinal size that makes sensing device in design under the situation that does not influence work as far as possible.And universal joint (5) side can guarantee that transmission rod (4) is always two power rod members, promptly only being delivered on the sensing element (2) by transmission rod (4) to pulling force, gets rid of the influence of other shear force or moment.
Fig. 2 is the block diagram according to sampling, holding circuit in the digital displaying meter that the utility model proposes.The peak-holding circuit that it is made up of half-wave rectifying circuit (9) simulation analog signal memory capacitance (10) and data buffer (11) three parts.Half-wave rectifying circuit is made up of voltage comparator and diode, and analog signal storage electric capacity is a high-quality electric capacity.Data buffer is the operational amplifier of a high input impedance.In test process, when input signal arrives, at first the voltage in signal voltage and the memory capacitance is compared by voltage comparator, as the signal voltage height, then voltage comparator is a noble potential, this moment, the output terminal by voltage comparator charged to memory capacitance through commutation diode, when capacitance voltage is elevated to when identical with signal voltage, the voltage comparator upset becomes low-voltage, utilize this moment the effect of the unidirectional conducting of diode to organize the only backflow of capacitance charge effectively, the voltage in the electric capacity is remained on the maximal value of signal voltage.Owing to adopt the operational amplifier of high input impedance to bear data buffer, the electric charge that has reduced electric capacity leaks, and the sampling time was reached more than 30 seconds, and error is less than 3 ‰.
Fig. 3 is the block diagram according to digital latch circuit in the digital displaying meter that the utility model proposes.It is made up of mimic channel and digital circuit.Digital circuit (12) is the A/D converter that can lock data, also can be other counter, and mimic channel is a voltage comparator (13), detection signal voltage at any time.When voltage is lower than a certain setting value of benchmark (14), illustrate that the pin of testing crew leaves pedal the sixth of the twelve Earthly Branches, test end in the sixth of the twelve Earthly Branches, display circuit is blocked in voltage comparator upset at this moment, and the maximum legpower numerical value that shown this moment is for good and all stayed on the display board.
Claims (1)
1, a kind of by pulling the force tester that pulls that force transducer and digital displaying meter form, feature is that its flexible member that pulls force transducer (2) designs in the inside of sensor handle (1), and has the load transfer device and an adjustable clamp (7) of a band universal joint (5); In its digital displaying meter by sampling, a holding circuit of forming by half-wave rectifying circuit, analog signal storage electric capacity and buffer amplifier and the numeral of forming by digital circuit and mimic channel.Latch cicuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90221808 CN2073113U (en) | 1990-10-13 | 1990-10-13 | Tester for hand pulling force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90221808 CN2073113U (en) | 1990-10-13 | 1990-10-13 | Tester for hand pulling force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2073113U true CN2073113U (en) | 1991-03-13 |
Family
ID=4899878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90221808 Withdrawn CN2073113U (en) | 1990-10-13 | 1990-10-13 | Tester for hand pulling force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2073113U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769808A (en) * | 2010-03-08 | 2010-07-07 | 中国航空工业集团公司西安飞机设计研究所 | Aircraft driving lever force measuring component and measuring method thereof |
| CN103575650A (en) * | 2013-11-21 | 2014-02-12 | 普德光伏技术（苏州）有限公司 | Method for testing release force of photovoltaic module |
| CN104931184A (en) * | 2015-06-30 | 2015-09-23 | 安徽智敏电气技术有限公司 | Hand brake fixing device of automobile hand brake force measuring sensor |
| CN104949786A (en) * | 2015-06-30 | 2015-09-30 | 安徽智敏电气技术有限公司 | Automobile hand brake force measuring sensor |
| CN107193138A (en) * | 2017-05-24 | 2017-09-22 | 深圳市华星光电技术有限公司 | A kind of device for testing tensile force and method of testing |
-
1990
- 1990-10-13 CN CN 90221808 patent/CN2073113U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769808A (en) * | 2010-03-08 | 2010-07-07 | 中国航空工业集团公司西安飞机设计研究所 | Aircraft driving lever force measuring component and measuring method thereof |
| CN101769808B (en) * | 2010-03-08 | 2011-09-14 | 中国航空工业集团公司西安飞机设计研究所 | Aircraft driving lever force measuring component and measuring method thereof |
| CN103575650A (en) * | 2013-11-21 | 2014-02-12 | 普德光伏技术（苏州）有限公司 | Method for testing release force of photovoltaic module |
| CN104931184A (en) * | 2015-06-30 | 2015-09-23 | 安徽智敏电气技术有限公司 | Hand brake fixing device of automobile hand brake force measuring sensor |
| CN104949786A (en) * | 2015-06-30 | 2015-09-30 | 安徽智敏电气技术有限公司 | Automobile hand brake force measuring sensor |
| CN107193138A (en) * | 2017-05-24 | 2017-09-22 | 深圳市华星光电技术有限公司 | A kind of device for testing tensile force and method of testing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing Automotive Research Institute Document name: Payment notice |
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| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Car Inst., Beijing City Document name: Notice of termination |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |