CN2398633Y - Radio torque rotating speed measuring instrument - Google Patents
Radio torque rotating speed measuring instrument Download PDFInfo
- Publication number
- CN2398633Y CN2398633Y CN 98248027 CN98248027U CN2398633Y CN 2398633 Y CN2398633 Y CN 2398633Y CN 98248027 CN98248027 CN 98248027 CN 98248027 U CN98248027 U CN 98248027U CN 2398633 Y CN2398633 Y CN 2398633Y
- Authority
- CN
- China
- Prior art keywords
- measuring instrument
- antenna
- fixed part
- movable part
- transmission
- 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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- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model relates to a wireless transmission power measuring instrument, comprising a movable part and a fixed part. The movable part which adopts a clamping mode is fixed on a measuring shaft, with no damage to the work state of original equipment. The fixed part transfers electric energy to the movable part by high frequency electric power transmission. The movable part which is measured by an electric bridge is modulated by analog-digital conversion and high frequency and is transfered to the fixed part by wireless transmission, completing the process of measurement and data transmission. The utility model has the advantages of simple structure, convenient installation and adjustment, and reliable data transmission.
Description
The utility model is a kind of moment of torsion of transmission shaft in the wireless transmission method measurement gearing and measurement mechanism of transmission shaft power of utilizing
Present torque measurement instrument all is a shaft coupling type, and its installation must disconnect arbor, adds torque gauge in the centre.Like this, the one, take bigger space.The 2nd, most of plant equipment are not allow to install like this.Therefore the range of application of the torque gauge of this shaft coupling type has been subjected to very big restriction.Especially at the scene especially can't installation and operation under the rugged surroundings.The torque-measuring apparatus in past all adopts slip ring to transmit power supply and measurement result, and this kind structure is easy to wearing and tearing and produces fault.
A kind of energy of purpose exploitation of this project is fit to rig-site utilization, the torque measuring device of being convenient to install and use under the condition that does not change existing equipment.And measurement data is transmitted under contactless situation with extraneous by transmission shaft by the mode of wireless radio transmission.
The mode that the utility model adopts snap ring to install, promptly under the condition of not changing original equipment, two pairs of snap rings are installed on the equipment transmission shaft, transmission shaft can produce a small torsional deflection when equipment is subjected to torsion, pass to by snap ring when this distortion and to make it produce distortion on the dynamometry rod that is placed on the snap ring, and the foil gauge that is attached on the dynamometry rod is changed and then make electric bridge produce uneven electromotive force.Can record the suffered moment of torsion of transmission shaft by handling this electromotive force, and the performance number that can obtain transmitting in conjunction with the measurement of rotating speed.
The circuit of this measurement mechanism is made up of two unit: power suppling part divides and the signal hop.
Power system produces the high frequency electric source of a 100 ~ 500kHz by transmitter unit,, is received after rectification, voltage stabilizing become the galvanic current source by internal antenna to rotating part (being measure portion) power supply via inside and outside ring-like antenna coupling.
Measuring system adopts the strain-type metering system, promptly detects owing to transmission shaft is subjected to the microdeformation that the effect of torsion takes place with the strain-type force bar, and is converted into and the proportional electric signal of suffered moment of torsion.This signal is transformed into its width and the corresponding pulse of suffered moment of torsion through circuit.With this pulse signal and a carrier wave modulate and with form of electromagnetic wave to space radiation.When receiving this high frequency carrier after demodulation reverts to original pulse, and with this pulse signal recover to become with measured amount to corresponding voltage signal.Show and provide control signal through the laggard line number word of analog to digital conversion.
Adopt the torque sensor of non-contacting power supply and signal transmission form, can avoiding at the scene, the situation of the following equipment attrition that often occurs of environment can significantly reduce breakdown rate to increase the serviceable life and the reliability of equipment.
Figure one is the structural drawing of this device.
Figure two is structural drawing of dynamometry rod.
1. measured transmission shaft 2. snap rings 3. shells 4. tachometer discs 5. dynamometry rod 6. internal antenna dishes 7. outside antenna dishes 8. internal antenna fixed mounts 9. outside antenna fixed mounts 10. signal transmission circuit assemblies 11. signal receiving circuit assemblies 12. velocity packages 13. foil gauges among the figure
Two pairs of snap rings (2) are fixed on the measured axis (1) among the figure, the transient equilibrium when a pair of dynamometry rod (5) is installed in the outside of snap ring with the assurance rotation.Tachometer disc (4) is installed to measure the rotating speed of transmission shaft in a side of snap ring.At the other end internal antenna dish (6) is installed, its installation should keep certain distance in order to avoid radiowave is absorbed by snap ring with snap ring.Outside antenna dish (7) is installed in the position relative with the internal antenna dish in the inside of shell
Claims (3)
1. wireless tachometer torquemeter, two pairs of snap rings are installed on measured transmission shaft, two dynamometry rods and ring Shape antenna are installed on snap ring, at fixed part fixedly ring Shape antenna is installed, it is characterized in that: carry out the transmission of signal and power supply by a pair of concentric ring Shape antenna between rotating part and the fixed part.
2. measuring instrument according to claim 1 is characterized in that: the structure unanimity of two pairs of snap rings, form by two semi-circular snap rings, and dynamometry rod holder is arranged on it.
3. measuring instrument according to claim 1 is characterized in that: the inner ring type antenna is the multi-turn structure, and its two ends are plug, directly inserts in the socket of rotating part, and outside antenna and internal antenna are concentric structure, are connected with fixed part with socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98248027 CN2398633Y (en) | 1998-11-02 | 1998-11-02 | Radio torque rotating speed measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98248027 CN2398633Y (en) | 1998-11-02 | 1998-11-02 | Radio torque rotating speed measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2398633Y true CN2398633Y (en) | 2000-09-27 |
Family
ID=33993124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98248027 Expired - Fee Related CN2398633Y (en) | 1998-11-02 | 1998-11-02 | Radio torque rotating speed measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2398633Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499407A (en) * | 2013-09-29 | 2014-01-08 | 山河智能装备股份有限公司 | Torque and revolving speed detection device |
| CN103790927A (en) * | 2014-03-03 | 2014-05-14 | 中国人民解放军装甲兵工程学院 | Transmission shaft with real-time online torque monitoring device |
| CN105424244A (en) * | 2015-11-19 | 2016-03-23 | 青岛理工大学 | Non-contact self-generating wireless torque sensor |
| CN109489877A (en) * | 2018-12-12 | 2019-03-19 | 中国北方车辆研究所 | A kind of road test vehicle comprehensive actuator drive chain power flow test method |
| CN114088265A (en) * | 2021-10-14 | 2022-02-25 | 哈尔滨广瀚动力传动有限公司 | Near-field communication device of large-displacement disturbance rotating torque meter |
-
1998
- 1998-11-02 CN CN 98248027 patent/CN2398633Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499407A (en) * | 2013-09-29 | 2014-01-08 | 山河智能装备股份有限公司 | Torque and revolving speed detection device |
| CN103499407B (en) * | 2013-09-29 | 2015-05-20 | 山河智能装备股份有限公司 | Torque and revolving speed detection device |
| CN103790927A (en) * | 2014-03-03 | 2014-05-14 | 中国人民解放军装甲兵工程学院 | Transmission shaft with real-time online torque monitoring device |
| CN105424244A (en) * | 2015-11-19 | 2016-03-23 | 青岛理工大学 | Non-contact self-generating wireless torque sensor |
| CN105424244B (en) * | 2015-11-19 | 2018-10-16 | 青岛理工大学 | Non-contact self-generating wireless torque sensor |
| CN109489877A (en) * | 2018-12-12 | 2019-03-19 | 中国北方车辆研究所 | A kind of road test vehicle comprehensive actuator drive chain power flow test method |
| CN114088265A (en) * | 2021-10-14 | 2022-02-25 | 哈尔滨广瀚动力传动有限公司 | Near-field communication device of large-displacement disturbance rotating torque meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |