CN105136363A - Dynamic torque measuring device - Google Patents
Dynamic torque measuring device Download PDFInfo
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- CN105136363A CN105136363A CN201510567495.0A CN201510567495A CN105136363A CN 105136363 A CN105136363 A CN 105136363A CN 201510567495 A CN201510567495 A CN 201510567495A CN 105136363 A CN105136363 A CN 105136363A
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Abstract
The invention provides a dynamic torque measuring device. The dynamic torque measuring device is connected between an input shaft and an output shaft, the input shaft and the output shaft are arranged on two support plates of a fixed support, and the dynamic torque measuring device includes a static torque sensor and a conductive slip ring; the static torque sensor includes a sensor body, a switching circuit, a signal output end, a strain gauge, an input connecting shaft and an output connecting shaft which are arranged at two sides of the sensor body, and an elastic shaft arranged between the input connecting shaft and the output connecting shaft; the strain gauge is attached to the elastic shaft; the input connecting shaft is coaxially connected with the input shaft, and the output connecting shaft is coaxially connected with the output shaft; the conductive slip ring includes a stator and a rotor which are electrically connected; and the rotor is fixed on the output shaft, the stator is fixed on the support, and the signal output end is electrically connected with the rotor. The dynamic torque measuring device provided by the invention reduces cost, and can perform continuous dynamic torque measurement on a loaded rotary power system.
Description
Technical field
The present invention relates to a kind of torque-measuring apparatus, especially relate to a kind of dynamic torque measurement mechanism.
Background technology
Moment of torsion is an important parameter in mechanical quantity.Moment of torsion on axle refers to the power on axle of acting on and its active line summation to the vector product of the distance at axle center, and unit is Nm.Moment of torsion have static torque and dynamic torque point.What now widely used static torque sensor adopted is strain chip principles of electrical measurement, namely on elastic shaft, paste foil gauge composition measuring bridge, and when elastic shaft is by torsional interaction, it causes bridge resistor to change after producing a kind of microdeformation, and the change transitions of strain bridge resistance is the change of voltage signal thus realizes the torque measurement that we want, and the measurement elastic shaft of sensor does not participate in relative motion.The static torque that general direct employing static torque sensor records is the stall moment of torsion of rotary power system.Dynamic torque generally uses dynamic torque sensor to measure.
What existing dynamic torque measurement mechanism was commonly used at present has inductance type and metallic resistance strain-type two kinds.The principle of metallic resistance strain-type is similar to the principle of static torque sensor, and difference is that the elastic shaft of dynamic torque sensor participates in relative motion, and sensor housing is fixing does not participate in relative motion.Dynamic torque sensor is serially connected in system under test (SUT), carries out the measurement of dynamic torque.This dynamic torque sensor market price costly, substantially all more than 4000 yuan.
Summary of the invention
The technical matters that the present invention solves is, provides a kind of with low cost, and can carry out the dynamic torque measurement mechanism of continuous dynamic torque measurement to the rotary power system being loaded with load.
The technical scheme that the present invention solves the problems of the technologies described above is, a kind of dynamic torque measurement mechanism is provided, between its input shaft being connected to dynamic torque to be measured and output shaft, this input shaft and output shaft are located in support bracket fastened two back up pads respectively, comprise a static torque sensor and a conducting slip ring; This static torque sensor comprises sensor main body, be placed in the change-over circuit in sensor main body, the signal output part be electrical connected with change-over circuit and foil gauge, coaxially be arranged at the input coupling shaft of these sensor main body both sides and export coupling shaft, and the elastic shaft being placed in this input coupling shaft and exporting between coupling shaft; This foil gauge is attached on elastic shaft; This input coupling shaft is coaxially connected with input shaft, and this output coupling shaft is coaxially connected with output shaft; This conducting slip ring comprises the stators and rotators be electrical connected; This rotor comprises an input end, and this stator comprises an output terminal, and this rotor is fixed on output shaft, and this stator is fixed on fixed support, and this signal output part and epitrochanterian input end are electrical connected by wire.
Preferably, the end of this input coupling shaft connects an input shaft coupling that coaxially can be connected with input shaft.
Preferably, the end of this output coupling shaft connects an output shaft coupling that coaxially can be connected with output shaft.
Preferably, the stator side of this conducting slip ring connects a stator, and this stator one end is fixed in the back up pad at output shaft place.
Preferably, this foil gauge adopts resistance strain plate.
Dynamic torque measurement mechanism provided by the invention combines by adopting static torque sensor and conducting slip ring, the electric signal of static torque sensor can be exported to the rotor of conducting slip ring, output line again by the stator of conducting slip ring is arranged exports, namely, utilize existing cheap static torque sensor and conducting slip ring just can realize dynamic torque to measure, reduce cost, in addition, this dynamic torque measurement mechanism is installed between input shaft and output shaft, dynamic torque measurement can be carried out to the rotary power system being loaded with load, range of application is wider, and continuous dynamic torque measurement can be carried out.
Accompanying drawing explanation
The cut-open view of a kind of dynamic torque measurement mechanism that Fig. 1 provides for one embodiment of the invention.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail below by embodiment.
Refer to Fig. 1, one embodiment of the invention provides a kind of dynamic torque measurement mechanism, it is connected between the input shaft 21 of dynamic torque to be measured and output shaft 22, this input shaft 21 and output shaft 22 are located in two back up pads 11 of fixed support 1 respectively, this fixed support 1 comprises two back up pads 11 of a base 12 and vertically this base 12 setting, this two back up pad 11 parallel interval is arranged, be respectively used to the installation mating holes position providing support input shaft 21 and output shaft 22, and the corresponding installation mating holes position that two back up pads 11 are arranged aligns, so that ensure input shaft 21 with output shaft 22 in coaxial position, ensure coaxial transmission.
This dynamic torque measurement mechanism comprises static torque sensor 4 and a conducting slip ring 5.This static torque sensor 4 comprises sensor main body 44, be placed in the change-over circuit (not shown) in sensor main body 44, the signal output part 43 be electrical connected with change-over circuit, the foil gauge (not shown) be electrical connected with change-over circuit, coaxially be arranged at the input coupling shaft 41 of these sensor main body 44 both sides and export coupling shaft 42, and the elastic shaft 45 being placed in this input coupling shaft 41 and exporting between coupling shaft 42.This foil gauge is attached on elastic shaft 45, can respond to the deformation that this elastic shaft 45 occurs by torsional interaction, and deformation is converted to electric signal transmission to change-over circuit.In the present embodiment, this foil gauge adopts resistance strain plate, and namely this static torque sensor 4 adopts common lower-cost static torque sensor.The signal intensity that foil gauge senses can do by this change-over circuit analyzes conversion, converts the electrical parameter relevant to moment of torsion to, and exports through signal output part 43.The end of this input coupling shaft 41 connects one can the input shaft coupling 31 that be connected coaxial with input shaft 21, the end of this output coupling shaft 42 connects one can the output shaft coupling 32 that be connected coaxial with output shaft 22, measures so that this static torque sensor 4 accesses between corresponding input shaft 21 and output shaft 22.In other embodiments, by adopting other fixed forms, input coupling shaft 41 coaxially can also be connected with input shaft 21, output coupling shaft 42 is coaxially connected with output shaft 22.Directly can also be arranged on input shaft 21 by this static torque sensor 4, namely not use shaft coupling 31, this input coupling shaft 41 is directly as input shaft.
This conducting slip ring 5 adopts the conventional conducting slip ring of prior art, comprises the stator 52 and rotor 51 that are electrical connected.This rotor 51 comprises an input end 511, this stator 52 comprises an output terminal 521, input end 511 on this rotor 51 is connected by wire with the signal output part 43 that static torque sensor 4 is arranged, the electric signal that this static torque sensor 4 gathers is after this wire transmission to rotor 51, reach stator 52 again, and the output terminal 521 on stator 52 exports.This rotor 51 is fixed on output shaft 22, can with output shaft 22 synchronous rotary.This stator 52 side connects a stator 54, and this stator 54 is a sheet metal, and its one end is fixed in the back up pad 11 at output shaft 22 place, and stator 52 is fixed.This rotor 51, in stator 52, can rotate relatively.
Dynamic torque measurement mechanism provided by the invention combines by adopting static torque sensor 4 and conducting slip ring 5, the electric signal of static torque sensor 4 can be exported to the rotor 51 of conducting slip ring 5, output line 521 again by the stator 52 of conducting slip ring 5 is arranged exports, namely, utilize existing cheap static torque sensor 4 and conducting slip ring 5 just can realize dynamic torque to measure, reduce cost.In addition, this dynamic torque measurement mechanism is installed between input shaft 21 and output shaft 22, can carry out dynamic torque continuous coverage to the rotary power system being loaded with load, and range of application is wider, and can carry out continuous dynamic torque measurement.
Above content is in conjunction with concrete embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made.
Claims (5)
1. a dynamic torque measurement mechanism, between its input shaft being connected to dynamic torque to be measured and output shaft, this input shaft and output shaft are located in support bracket fastened two back up pads respectively, it is characterized in that, comprise a static torque sensor and a conducting slip ring; This static torque sensor comprises sensor main body, be placed in the change-over circuit in sensor main body, the signal output part be electrical connected with change-over circuit and foil gauge, coaxially be arranged at the input coupling shaft of these sensor main body both sides and export coupling shaft, and the elastic shaft being placed in this input coupling shaft and exporting between coupling shaft; This foil gauge is attached on elastic shaft; This input coupling shaft is coaxially connected with input shaft, and this output coupling shaft is coaxially connected with output shaft; This conducting slip ring comprises the stators and rotators be electrical connected; This rotor comprises an input end, and this stator comprises an output terminal, and this rotor is fixed on output shaft, and this stator is fixed on fixed support, and this signal output part and epitrochanterian input end are electrical connected by wire.
2. dynamic torque measurement mechanism as claimed in claim 1, is characterized in that, the end of this input coupling shaft connects an input shaft coupling that coaxially can be connected with input shaft.
3. dynamic torque measurement mechanism as claimed in claim 2, is characterized in that, the end of this output coupling shaft connects an output shaft coupling that coaxially can be connected with output shaft.
4. dynamic torque measurement mechanism as claimed in claim 1, it is characterized in that, the stator side of this conducting slip ring connects a stator, and this stator one end is fixed in the back up pad at output shaft place.
5. the dynamic torque measurement mechanism as described in any one of claim 1-4, is characterized in that, this foil gauge adopts resistance strain plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510567495.0A CN105136363A (en) | 2015-09-08 | 2015-09-08 | Dynamic torque measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510567495.0A CN105136363A (en) | 2015-09-08 | 2015-09-08 | Dynamic torque measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105136363A true CN105136363A (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510567495.0A Pending CN105136363A (en) | 2015-09-08 | 2015-09-08 | Dynamic torque measuring device |
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| CN (1) | CN105136363A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289766A (en) * | 2016-08-29 | 2017-01-04 | 武汉船用机械有限责任公司 | A kind of detection device of self-elevating platform up-down system |
| CN108387331A (en) * | 2018-01-31 | 2018-08-10 | 西安交通大学 | A kind of test method of the real-time dynamic stress of disc type pull rod composite class rotor |
| CN108687706A (en) * | 2018-08-06 | 2018-10-23 | 四川省东泰机械制造有限公司 | A kind of Electric torque wrench signal transmission structure and its Electric torque wrench |
| CN111766005A (en) * | 2020-07-10 | 2020-10-13 | 浙江睿驰同利汽车电子有限公司 | Load characteristic measuring system |
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| CN87213769U (en) * | 1987-09-29 | 1988-08-03 | 东北重型机械学院 | Assembling caliper type torque transducer |
| DE4042270C1 (en) * | 1990-12-31 | 1992-04-23 | Dr. Staiger, Mohilo + Co Gmbh, 7060 Schorndorf, De | Torque pick=up using expansion measuring strips in bridge circuit - establishes coupling between rotor and housing by slip-rings and brushes on sprung retainers |
| CN1560580A (en) * | 2004-03-05 | 2005-01-05 | 天津大学 | Hollow structure large range torque dynamic measuring device and method |
| CN102837283A (en) * | 2012-09-27 | 2012-12-26 | 北京科瑞思创测控科技有限公司 | Numerical-control constant-torque electric spanner |
| CN103868636A (en) * | 2014-03-19 | 2014-06-18 | 中北大学 | Rotating-shaft torque dynamic measuring and monitoring system |
| CN104458085A (en) * | 2015-01-05 | 2015-03-25 | 韩亚兰 | Mechanical connection structure for detecting dynamic torque by adopting static torque sensor |
| CN104655347A (en) * | 2013-11-21 | 2015-05-27 | 四川观想电子科技有限公司 | Digital display type multiplier wrench measuring system |
| CN205066982U (en) * | 2015-09-08 | 2016-03-02 | 深圳国泰安教育技术股份有限公司 | Developments torque -measuring apparatus |
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2015
- 2015-09-08 CN CN201510567495.0A patent/CN105136363A/en active Pending
Patent Citations (8)
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|---|---|---|---|---|
| CN87213769U (en) * | 1987-09-29 | 1988-08-03 | 东北重型机械学院 | Assembling caliper type torque transducer |
| DE4042270C1 (en) * | 1990-12-31 | 1992-04-23 | Dr. Staiger, Mohilo + Co Gmbh, 7060 Schorndorf, De | Torque pick=up using expansion measuring strips in bridge circuit - establishes coupling between rotor and housing by slip-rings and brushes on sprung retainers |
| CN1560580A (en) * | 2004-03-05 | 2005-01-05 | 天津大学 | Hollow structure large range torque dynamic measuring device and method |
| CN102837283A (en) * | 2012-09-27 | 2012-12-26 | 北京科瑞思创测控科技有限公司 | Numerical-control constant-torque electric spanner |
| CN104655347A (en) * | 2013-11-21 | 2015-05-27 | 四川观想电子科技有限公司 | Digital display type multiplier wrench measuring system |
| CN103868636A (en) * | 2014-03-19 | 2014-06-18 | 中北大学 | Rotating-shaft torque dynamic measuring and monitoring system |
| CN104458085A (en) * | 2015-01-05 | 2015-03-25 | 韩亚兰 | Mechanical connection structure for detecting dynamic torque by adopting static torque sensor |
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| 渤海钻探第三钻井公司: "《渤海钻探第三钻井公司钻井技术论文集》", 31 December 2013 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289766A (en) * | 2016-08-29 | 2017-01-04 | 武汉船用机械有限责任公司 | A kind of detection device of self-elevating platform up-down system |
| CN106289766B (en) * | 2016-08-29 | 2018-11-23 | 武汉船用机械有限责任公司 | A kind of detection device of self-elevating platform up-down system |
| CN108387331A (en) * | 2018-01-31 | 2018-08-10 | 西安交通大学 | A kind of test method of the real-time dynamic stress of disc type pull rod composite class rotor |
| CN108387331B (en) * | 2018-01-31 | 2020-07-28 | 西安交通大学 | Method for testing real-time dynamic stress of disc type pull rod combined rotor |
| CN108687706A (en) * | 2018-08-06 | 2018-10-23 | 四川省东泰机械制造有限公司 | A kind of Electric torque wrench signal transmission structure and its Electric torque wrench |
| CN111766005A (en) * | 2020-07-10 | 2020-10-13 | 浙江睿驰同利汽车电子有限公司 | Load characteristic measuring system |
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Address after: 518000 12th Floor, Building A4, Nanshan Zhiyuan, 1001 Xueyuan Avenue, Nanshan District, Shenzhen City, Guangdong Province Applicant after: Shenzhen Guotaian Educational Technology Co., Ltd. Address before: Room 2203, West Block, Coastal Times Apartment, 12069 Shennan Avenue, Nanshan District, Shenzhen City, Guangdong Province, 518000 Applicant before: GTA INFORMATION TECHNOLOGY CO., LTD. (GTA) |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20151209 |