CN207763861U - A kind of coupling type piezo torsion sensor - Google Patents
A kind of coupling type piezo torsion sensor Download PDFInfo
- Publication number
- CN207763861U CN207763861U CN201820152534.XU CN201820152534U CN207763861U CN 207763861 U CN207763861 U CN 207763861U CN 201820152534 U CN201820152534 U CN 201820152534U CN 207763861 U CN207763861 U CN 207763861U
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- China
- Prior art keywords
- shaft end
- middle layer
- upper cover
- circular groove
- sensing element
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Abstract
The utility model discloses a kind of coupling type piezo torsion sensors,A kind of coupling type piezo torsion sensor,Including input shaft end,Output shaft end and elasticity measurement unit,The input shaft end and output shaft end are provided with through-hole and keyway,The side of the input shaft end and output shaft end is provided with the notch and bolt hole of disconnection,The bolt hole is equipped with fastening bolt,Affiliated elasticity measurement unit includes pedestal,Force sensing element,Middle layer,Wireless signal transmission and upper cover,The base upper surface justifies together the circular groove one being distributed there are four opening,The radio transmitting device is fixed in groove one,Open the circular groove two being distributed there are four same circle and through-hole one in the middle layer upper surface,It is provided with wire guide in each groove two,The force sensing element lower surface is contacted with middle layer upper surface,It opens there are four groove three the upper cover lower surface,The base lower surface and upper cover justify together the heavy platform bolt hole being distributed there are four symmetrically opening,Four screw bolt and nut are by pedestal,Force sensing element,Middle layer and upper cover are installed together.The utility model good manufacturability, manufacture are easy, and are realized out-of-alignment torque measurement, are reduced the cost of measurement process.
Description
Technical field
The utility model belongs to sensor and its measurement and control area, is specifically designed a kind of coupling type piezo torsion sensor.
Background technology
Currently, mostly using strain-gauge transducer for the torque measurement in rotary shaft, usually pasted on elastic shaft
Strain Meter Set causes bridge resistance to change at measuring bridge after elastic shaft is generated micro-strain by torque, strain bridge electricity
The change transitions of resistance be electric signal variation to realize torque measurement, this measurement method compared with piezoelectric transducer, move
Step response is poor, and sensitivity is low, cannot be satisfied required precision height, the high occasion of sample frequency, traditional piezoelectric type torque sensor
It can generally be had an impact because volume is excessive in the occasion of small torque measurement.
A kind of torque sensor is disclosed in patent CN105593106A, which turns to for measuring on vehicle
The torque of axis, magnetic devices realize the measurement of torque by receiving the amount of magnetism of rotor and stator.This magneto-electric sensing
Non-cpntact measurement may be implemented in device, but intrinsic frequency is relatively low.
Pillar torque sensor is proposed in patent CN1401978A, using quartz column as torque measurement element, in cylinder
Electrode slice is sticked to measure torque in surface.But cylinder quartz is influenced by material property, is existed during location and installation certain
Difficulty, while cylinder quartz volume is excessive, and cost is excessively high, limits sensor application.
Invention content
Problem to be solved in the utility model is to provide a kind of coupling type piezo torsion sensor, avoids in small torque measuring
Excessive, the of high cost influence of volume caused by sensor is separately configured during amount has high sensitivity, and rigidity is high, measures essence
Spend high feature.
A kind of coupling type piezo torsion sensor, including input shaft end（1）, output shaft end（3）With elasticity measurement unit
（2）, the input shaft end（1）And output shaft end（3）It is provided with through-hole（9）And keyway（8）, the input shaft end（1）And output shaft
End（3）Side be provided with the notch of disconnection（11）And bolt hole（10）, the bolt hole（10）Fastening bolt is installed, it is affiliated
Elasticity measurement unit（2）Including pedestal（7）, force sensing element（5）, middle layer（6）, wireless signal transmission（17）And upper cover
（4）, the pedestal（7）Justify the circular groove one being distributed together there are four opening in upper surface（22）, the radio transmitting device（17）Gu
It is scheduled on circular groove one（22）It is interior, the middle layer（6）Justify the circular groove two being distributed together there are four opening in upper surface（23）, described
Each circular groove two（23）Inside it is provided with wire guide（18）, the force sensing element（5）Lower surface and middle layer（6）Upper surface connects
It touches, the upper cover（4）It opens there are four circular groove three lower surface（24）, the pedestal（7）Lower surface and upper cover（4）Symmetrically it is provided with
Four heavy platform bolts hole one with circle distribution（12）With heavy platform bolt hole two（21）, four bolts（13）And nut（20）By pedestal
（7）, force sensing element（5）, middle layer（6）And upper cover（4）It is installed together.
As further limiting for the technical program, the force sensing element（5）It assumes diamond in shape including 4 groups of force sensing elements and is laid out position
In in XOY plane coordinate system, wherein force sensing element is born X0 ° of cut type chip of pulling and pressed effect by two panels（15）, electrode slice（16）、
Gasket（14）Composition, for measuring axial force F z, electrode slice（16）For output voltage signal v1, v2, v3, v4, surveyed torque
As obtained by the method for " power × arm of force " calculating.
As further limiting for the technical program, the force sensing element measures output charge amount by conducting wire by intermediate
Layer（6）Wire guide（18）And radio transmitting device（17）It is connected, transfers signals to host computer and carry out data processing.
Compared with prior art, the effect of the utility model is：A kind of coupling type piezo torsion sensing of the utility model
Device solves the problems, such as to be separately configured that sensor bulk is excessive in small torque measurement occasion, simplifies the structure of traditional sensors,
And it is substantially reduced with higher static and dynamic property, cost, it is convenient to measure, and precision is high, and axial force measuration range is big etc.
Feature.
Description of the drawings
Fig. 1 coupling type piezo torsion sensor structural schematic diagrams
Fig. 2 input shaft ends（Output shaft end）Schematic diagram
Fig. 3 elasticity measurement cellular construction schematic diagrams
1- input shaft ends, 2- elasticity measurements unit, 3- output shaft ends, 4- upper covers, 5- force sensing elements, 6- middle layers, the bottoms 7-
Seat, 8- keyways, 9- through-holes, 10- bolts hole, 11- notches, 12- heavy platforms bolt hole one, 13- bolts, 14- gaskets, 15-X0 ° of cut type
Chip, 16- electrode slices, 17- radio transmitting devices, 18- wire guides, 19- conducting wires, 20- nuts, 21- heavy platforms bolt hole two, 22-
Circular groove one, 23- circular grooves two, 24- circular grooves three.
Specific implementation mode
The implementation for illustrating the utility model below in conjunction with the accompanying drawings, referring to Fig. 1-3, a kind of coupling type piezo torsion biography
Sensor, including input shaft end（1）, output shaft end（3）With elasticity measurement unit（2）, the input shaft end（1）And output shaft end
（3）It is provided with through-hole（9）And keyway（8）, the input shaft end（1）And output shaft end（3）Side be provided with the notch of disconnection（11）
And bolt hole（10）, the bolt hole（10）Fastening bolt, affiliated elasticity measurement unit are installed（2）Including pedestal（7）, power
Quick element（5）, middle layer（6）, wireless signal transmission（17）And upper cover（4）, the pedestal（7）Upper surface opens that there are four same
The circular groove one of circle distribution（22）, the radio transmitting device（17）It is fixed on circular groove one（22）It is interior, the middle layer
（6）Justify the circular groove two being distributed together there are four opening in upper surface（23）, each circular groove two（23）Inside it is provided with wire guide
（18）, the force sensing element（5）Lower surface and middle layer（6）Upper surface contacts, the upper cover（4）Lower surface opens that there are four round
Groove three（24）, the pedestal（7）Lower surface and upper cover（4）With the heavy platform bolt hole one of circle distribution there are four symmetrically opening（12）With
Heavy platform bolt hole two（21）, four bolts（13）And nut（20）By pedestal（7）, force sensing element（5）, middle layer（6）And upper cover
（4）It is installed together.
Elasticity measurement unit（2）Material be all made of 304 stainless steels.The brilliant group of direction according to sensitivity is placed when installation
In circular groove two（23）It is interior, force sensing element（5）It measures output charge amount and passes through conducting wire（19）By middle layer（6）Wire guide
（18）And radio transmitting device（17）It is connected.The input shaft end of sensor（1）And output shaft end（3）It is respectively intended to fixed input shaft
And output shaft, when the torque that two axis generate is transmitted to elasticity measurement unit（2）When, force sensing element（5）Measure axial force F z productions
Raw bound charge, passes through electrode slice（16）It draws, by wire guide（18）With radio transmitting device（17）It is connected, is adopted by data
Host computer is passed to after truck and A/D conversions, surveyed torque is as obtained by the method for " power × arm of force " calculating.
Claims (1)
1. a kind of coupling type piezo torsion sensor, including input shaft end（1）, output shaft end（3）With elasticity measurement unit
（2）, the input shaft end（1）And output shaft end（3）It is provided with through-hole（9）And keyway（8）, the input shaft end（1）And output shaft
End（3）Side be provided with the notch of disconnection（11）And bolt hole（10）, the bolt hole（10）Fastening bolt is installed, it is affiliated
Elasticity measurement unit（2）Including pedestal（7）, force sensing element（5）, middle layer（6）, wireless signal transmission（17）And upper cover
（4）, the pedestal（7）Justify the circular groove one being distributed together there are four opening in upper surface（22）, the radio transmitting device（17）Gu
It is scheduled on circular groove one（22）It is interior, the middle layer（6）Justify the circular groove two being distributed together there are four opening in upper surface（23）, described
Each circular groove two（23）Inside it is provided with wire guide（18）, the force sensing element（5）Lower surface and middle layer（6）Upper surface connects
It touches, the upper cover（4）It opens there are four circular groove three lower surface（24）, the pedestal（7）Lower surface and upper cover（4）Symmetrically it is provided with
Four heavy platform bolts hole one with circle distribution（12）With heavy platform bolt hole two（21）, four bolts（13）And nut（20）By pedestal
（7）, force sensing element（5）, middle layer（6）And upper cover（4）It is installed together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820152534.XU CN207763861U (en) | 2018-01-30 | 2018-01-30 | A kind of coupling type piezo torsion sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820152534.XU CN207763861U (en) | 2018-01-30 | 2018-01-30 | A kind of coupling type piezo torsion sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207763861U true CN207763861U (en) | 2018-08-24 |
Family
ID=63182316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820152534.XU Expired - Fee Related CN207763861U (en) | 2018-01-30 | 2018-01-30 | A kind of coupling type piezo torsion sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207763861U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI803196B (en) * | 2022-02-15 | 2023-05-21 | 介隆興齒輪股份有限公司 | Bicycle bottom bracket torque detection mechanism |
| DE102022120075A1 (en) | 2022-08-09 | 2024-02-15 | Technische Universität Dresden, Körperschaft des öffentlichen Rechts | DEVICE FOR MEASURING OPERATING VARIABLES, IN PARTICULAR TORQUES, IN SHAFT COUPLINGS WITH ELASTOMER COMPONENTS |
-
2018
- 2018-01-30 CN CN201820152534.XU patent/CN207763861U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI803196B (en) * | 2022-02-15 | 2023-05-21 | 介隆興齒輪股份有限公司 | Bicycle bottom bracket torque detection mechanism |
| DE102022120075A1 (en) | 2022-08-09 | 2024-02-15 | Technische Universität Dresden, Körperschaft des öffentlichen Rechts | DEVICE FOR MEASURING OPERATING VARIABLES, IN PARTICULAR TORQUES, IN SHAFT COUPLINGS WITH ELASTOMER COMPONENTS |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180824 Termination date: 20190130 |