CN202814608U - Torque measuring device - Google Patents
Torque measuring device Download PDFInfo
- Publication number
- CN202814608U CN202814608U CN 201220300068 CN201220300068U CN202814608U CN 202814608 U CN202814608 U CN 202814608U CN 201220300068 CN201220300068 CN 201220300068 CN 201220300068 U CN201220300068 U CN 201220300068U CN 202814608 U CN202814608 U CN 202814608U
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- CN
- China
- Prior art keywords
- elastic beam
- base
- chip microcomputer
- electric bridge
- holes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a torque measuring device, which belongs to the technical field of mechanical instrument. Threaded through holes are symmetrically arranged on a base, a measuring carrier is arranged on the base and composed of an elastic beam, wherein the elastic beam is provided with four resistance strain gages to form an electric bridge, fixation bodies are symmetrically arranged on the two ends of the elastic beam, and provided with grooves and bolt holes on the surfaces, a battery, a single-chip microcomputer and a wireless transmission module are respectively arranged in each groove, after the voltage of the battery is stabilized, the voltage of the battery is respectively connected with the power supply of the single-chip microcomputer and the power supply on the electric bridge on the elastic beam, the input end of the single-chip microcomputer is connected with the output end of the electric bridge of the elastic beam, the output end of the single-chip microcomputer is connected with the input end of the wireless transmission module, the threaded through holes on the base are corresponded to the bolt through holes on the measuring carrier and connected together by bolt nuts. The torque measuring device is conveniently mounted, the field coupling shaft or coupling is not necessarily disassembled, and the torque measuring precision is improved.
Description
Technical field
The utility model relates to a kind of torque-measuring apparatus, belongs to the machinery instrument field.
Background technology
Moment of torsion is the important process parameter of rotating machinery transmission shaft, and torque measurement has become important component part in the mechanical value measuring.The size of moment of torsion amplitude, Changing Pattern are important indicators of reflection machine utilization, also are the tolerance in stressed transmission shaft situation, safe coefficient and serviceable life simultaneously.Therefore torque measurement is extremely important in the rotating machinery such as large-scale, heavily loaded, for strengthen monitoring of equipment, support equipment safe operation, to improve transmission shaft significant serviceable life.For a long time, under many occasions, measuring moment of torsion is time-consuming, as a to require great effort job, is difficult to measure for a long time.
Existing torque measurement has three kinds of methods: 1) flange at coupling shaft is connected in series a torque sensor, although this class torque sensor is complete in specifications, and comparative maturity.But this survey bureau is sex-limited large, and in most cases, measured axis does not have such mounting condition.Torsion angle when 2) measuring shaft distortion by physical influences such as pressure magnetic, piezoelectricity, the indirect calculation moment of torsion.The method is used seldom at the scene, and is not overripened; 3) direct adhering resistance strain sheets forms electric bridge on the transmission shaft surface, and foil gauge axis and measured axis axis are 45 °, 135 °, the principle stress of axle size when measuring torsional deflection.This measuring method is used more in short-term torque measurement and heavy mechanical equipment transmission shaft, has following shortcoming: 1. the strain gauge adhesion quality is subjected to site environment, condition influence larger; 2. it is long to paste the foil gauge holding time, and the bad control of sticking Quality brings measuring error; 3. field condition can't be demarcated the relation of moment of torsion and electric bridge output size, and general with the calibration coefficient of strain gauge adhesion perfect condition as moment of torsion, the torque measurement error is larger; 4. be only suitable for the short-term torque measurement.
Summary of the invention
It is a kind of easy for installation that the purpose of this utility model is to provide, and measures accurately torque-measuring apparatus.
Technical solution:
The utility model comprises: base, be arranged with tapped through hole on the base, base is provided with the measurement carrier, the measurement carrier comprises: elastic beam, elastic beam is provided with four resistance strain gages and forms electric bridge, the elastic beam two ends are arranged with fixed body, the surface of fixed body is provided with groove and bolt hole, be placed with respectively battery in the groove, single-chip microcomputer and wireless transmitter module, cell voltage through after the voltage stabilizing respectively with the power supply of single-chip microcomputer and elastic beam on electric bridge for being electrically connected, the single-chip microcomputer input end is connected with the output terminal of elastic beam electric bridge, the single-chip microcomputer output terminal is connected with the wireless transmitter module input end, tapped through hole is corresponding with measurement carrier upper bolt hole on the base, links together by bolt and nut.
Described base basal surface is for being arcwall face, and arcwall face curvature equates with measured paraxial curvature.
The utility model elastic beam reasonable stress, easy for installation, do not need to dismantle on-the-spot spindle or shaft coupling, improved the torque measurement precision.
Description of drawings
Fig. 1 is the utility model structural diagrams intention;
Fig. 2 is the utility model understructure figure synoptic diagram;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is for measuring the carrier structure synoptic diagram;
Fig. 5 is the vertical view of Fig. 4;
Fig. 6 is the utility model theory diagram.
Embodiment
The utility model base 1 basal surface is arcwall face, arcwall face curvature equates with measured paraxial curvature, be arranged with tapped through hole 2 on the base 1, base 1 is provided with measures carrier 3, measuring carrier 3 comprises: elastic beam 4, elastic beam 4 is provided with four resistance strain gages and forms electric bridge, elastic beam 4 two ends are arranged with fixed body 5, the surface of fixed body 5 is provided with groove 6 and bolt hole 7, the groove 6 that is positioned at elastic beam 4 one sides is placed with battery 8, opposite side groove 6 interior placement single-chip microcomputer 9 and wireless transmitter modules 10, battery 8 Voltage-outputs supply to be electrically connected with power supply and elastic beam 4 electric bridges of single-chip microcomputer 9 respectively, the input end of single-chip microcomputer 9 is connected with the output terminal of elastic beam 4 electric bridges, the output terminal of single-chip microcomputer 9 is connected with wireless transmitter module 10 input ends, tapped through hole 2 is corresponding with bolt hole 7, bolt 13 screw in fully pass behind the tapped through hole 2 bolt hole 7 with base 1 with measure carrier 3 and firmly link together.
The utility model screws in two tapped through holes 2 of two bolts from base 1 arcwall face respectively fully, there is arcwall face one side to be fixed on the measured axis surface base 1 during installation, the two bolt lines of centres are parallel with the measured axis axis, carry out weld all around around base 1 and the measured axis contact position.To measure carrier 3 and base 1 assembling after welding, tightly fixing with bolt 13, elastomeric pad 14 and nut 15.
During detection, after battery 8 power supplies, if measured axis produces moment of torsion and then passes to elastic beam 4, make elastic beam 4 produce elastic deformation, resistance strain gage converts this elastic deformation to the variation of resistance on the elastic beam 4, further change Voltage-output into by bridge diagram, measure system based on MCU 9 with the output signal of elastic beam 4 electric bridges amplify, the A/D conversion process, by wireless transmitter module 10 signal is launched again.Wireless receiving module 11 receives the signal of wireless transmitter module 10 and delivers to computing machine 12, shows measured axis moment of torsion amplitude, waveform at screen, and stores.
Claims (2)
1. torque-measuring apparatus, comprise: base, it is characterized in that, be arranged with tapped through hole on the base, base is provided with the measurement carrier, measures carrier and comprises: elastic beam, elastic beam is provided with four resistance strain gages and forms electric bridge, the elastic beam two ends are respectively equipped with fixed body, and the fixed body surface is provided with groove and bolt hole, are placed with respectively battery, single-chip microcomputer and wireless transmitter module in the groove; Cell voltage is through being connected with electric bridge power supply on single-chip microcomputer power supply and the elastic beam after the voltage stabilizing, the input end of single-chip microcomputer is connected with the output terminal of elastic beam electric bridge, the single-chip microcomputer output terminal is connected with the wireless transmitter module input end, tapped through hole is corresponding with measurement carrier upper bolt hole on the base, and base is bolted together with the measurement carrier.
2. torque-measuring apparatus according to claim 1 is characterized in that, the base basal surface is arcwall face, and arcwall face curvature equates with measured paraxial curvature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220300068 CN202814608U (en) | 2012-06-13 | 2012-06-13 | Torque measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220300068 CN202814608U (en) | 2012-06-13 | 2012-06-13 | Torque measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202814608U true CN202814608U (en) | 2013-03-20 |
Family
ID=47873467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220300068 Expired - Fee Related CN202814608U (en) | 2012-06-13 | 2012-06-13 | Torque measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202814608U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092127A (en) * | 2015-09-21 | 2015-11-25 | 北京南车时代机车车辆机械有限公司 | Rotary drilling rig torque detection device and rotary drilling rig torque detection method |
| CN105422792A (en) * | 2015-12-24 | 2016-03-23 | 苏州绿的谐波传动科技有限公司 | Harmonic speed reducer with strain gauges |
| CN111033198A (en) * | 2017-08-14 | 2020-04-17 | 阿自倍尓株式会社 | Torque detector |
-
2012
- 2012-06-13 CN CN 201220300068 patent/CN202814608U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092127A (en) * | 2015-09-21 | 2015-11-25 | 北京南车时代机车车辆机械有限公司 | Rotary drilling rig torque detection device and rotary drilling rig torque detection method |
| CN105092127B (en) * | 2015-09-21 | 2018-07-03 | 北京中车重工机械有限公司 | Rotary drilling rig torque detecting apparatus and rotary drilling rig torque detection method |
| CN105422792A (en) * | 2015-12-24 | 2016-03-23 | 苏州绿的谐波传动科技有限公司 | Harmonic speed reducer with strain gauges |
| CN111033198A (en) * | 2017-08-14 | 2020-04-17 | 阿自倍尓株式会社 | Torque detector |
| CN111033198B (en) * | 2017-08-14 | 2021-09-28 | 阿自倍尓株式会社 | Torque detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20160613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |