CN201181299Y - Magnetoelectricity type externally hung torque-measuring apparatus - Google Patents
Magnetoelectricity type externally hung torque-measuring apparatus Download PDFInfo
- Publication number
- CN201181299Y CN201181299Y CNU200820079474XU CN200820079474U CN201181299Y CN 201181299 Y CN201181299 Y CN 201181299Y CN U200820079474X U CNU200820079474X U CN U200820079474XU CN 200820079474 U CN200820079474 U CN 200820079474U CN 201181299 Y CN201181299 Y CN 201181299Y
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- torque
- lead
- shaft coupling
- measuring apparatus
- cover plate
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Abstract
The utility model relates to a magnetoelectric outside-hanging torque measurement device, which is composed of a spring coupling, a magnet, a balance block, wires, an amplifier, a data collection card, a microcomputer system, etc. The measurement device can online measure and display the rotation speed and the torque during operation of the equipment without increasing the total axial length of the equipment, and has the advantages of simple structure, reasonable layout, and high measurement accuracy. The measurement device can be specifically used for measuring the rotation speed and the torque of one transmission device or sequentially or simultaneously measuring the rotation speeds and the torques of a plurality of transmission devices, and can achieve centralized monitor and display of the rotation speeds and the torques of the plurality of transmission devices.
Description
Technical field
The utility model belongs to field of measuring technique, and particularly moment of torsion in the gearing and rotating speed carry out the device that noncontact magnetoelectricity formula is measured.
Background technology
At present, torque-measuring apparatus mainly adopts the method for pasting foil gauge on transmission shaft to measure.This measuring method has not only increased axial length, and utilizing interlock circuit to extract deformation signal, method by slip ring or wireless transmit sends external device (ED) to when carrying out analyzing and processing, and these two kinds of signal transmission forms have weak point, and the slip ring mode is subjected to the influence that contact resistance changes; The method of wireless transmit is easy to generate distorted signals, and especially when the axle high speed rotating, emitting antenna or coil be rotation thereupon also, and this intensity that can cause receiving trap to receive changes, even can produce dropout.
A kind of non-contact type microtorque measuring device is disclosed in Chinese patent CN97117278.1.Constitute by contactless electromagnetic brake, zero-bit, speed measuring system, dynamic balance system, automatic loader, micro-displacement work table, computer data acquiring, display control program.In this device, driven by motor aluminium spirals and transfers to cutting magnetic line movement, the aluminium dish is subjected to the effect of an electromagnetic force opposite with direction of motion, change the size that coil current will change electromagnetic system power, the reaction force acts of aluminium dish is in the balance left arm, make balance balance once again at the balance right arm by automatic loading, can show tested rotating speed of motor moment characteristics curve this moment on microcomputer.Though this measurement mechanism has adopted non-contact measurement, structure is formed complicated, and balance need be by automatic loading balance once again just in addition, and this makes the demonstration of microcomputer to lag behind.
Summary of the invention
The utility model provides a kind of contactless magneto-electric plug-in torque-measuring apparatus, carries out the moment of torsion on-line measurement under the situation that does not increase the gearing overall axial length; Measurement mechanism is simple in structure, can directly obtain reliable, accurate torque value.Can carry out the rotating speed of many cover gearings and on-line measurement, the centralized displaying of moment of torsion with a sets of data capture card, microsystem, the transmission course no signal lags behind.
The principle of the measurement mechanism that the utility model provides is to do cutting magnetic line movement according to lead in magnetic field can produce electric current, shaft coupling produces the drift angle with the standard torsionspring when reversing, and the drift angle converted to mistiming of current signal, thereby the utilization Microcomputer Calculation goes out tachometer value and torque value and shows.
Main technical schemes of the present utility model: a spring coupling is installed between the transmission shaft of motor shaft and working machine, and it is made up of spring and two securing cover plates.Respectively open two blind holes in the outer face of two cover plates, the center line of two blind holes and shaft coupling axis symmetry and parallel on each cover plate, four blind hole center lines on two cover plates equate at grade and with the shaft coupling axial line distance.Magnet is installed, dress counterbalance weight in another blind hole in the blind hole of each cover plate.Dress magnet in the center line blind hole point-blank on two cover plates, another adorns counterbalance weight.Outside the cover plate end face, shaft coupling bottom installs a lead respectively vertically, makes it vertical with the shaft coupling center line.Lead and cover plate keep certain clearance, and gap length does not bump shaft coupling when should maintenance equipment running well.Amplifier input terminal is inserted in the loop of two leads respectively.The input end of the output termination data collecting card of amplifier.The output terminal of data collecting card inserts microcomputer.Signal shows by display.
In the said apparatus, spring adopts torsionspring, selects the torsionspring of suitable types for use according to operation torque.Counterbalance weight is equal in weight with magnet, shape is identical.Lead is by single or be connected in parallel by the lead of many appearances insulation and form.
Signals collecting of the present utility model, computer processing unit are the device that usually adopts, and used data acquisition card can be with the simultaneously sampling multi-function card of buying on the market (routine USB-7335BD); Amplifier can be selected suitable model as requested with the micro current amplifier of buying on the market (routine TJ-110).
Be separately installed with spring coupling how between the transmission shaft of the motor shaft of cover gearings and working machine.Be connected with conventional key connected mode between the transmission shaft of each shaft coupling and motor shaft and working machine.The connected mode of lead, amplifier, data collecting card etc. and microcomputer is measured the situation of moment of torsion and rotating speed with unit.
Effect of the present utility model: the relative angular position that the input and output two ends produce when utilizing spring coupling to transmit moment of torsion changes as signal source, the electromagnetic measurement device that plug-in detection corner changes, simplified measurement structure greatly, make compact conformation, it is convenient to measure, and avoid foil gauge on the common torque gauge transmission shaft to reverse with axle and when producing deformation signal and outwards transmitting to the influence of measuring accuracy, improved the precision of torque measurement, and can realize that many complete equipments add a small amount of part (lead, amplifier) can adopt the utility model to measure a plurality of transmission shaft rotating speeds and moment of torsion with a cover external hanging device simultaneously, save and measure cost.
Description of drawings:
Figure of abstract adopts Fig. 1.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structure diagram that the utility model is used for 2 wheelworks.
Embodiment:
Embodiment 1
As shown in Figure 1, spring coupling is installed between motor 1 and the working machine 5, and wherein spring coupling is made up of spring 11 and cover plate 12 and cover plate 13.Motor shaft and working crankshaft link together with two cover plates respectively by key, all have one section sleeve pipe on each cover plate, have a groove or hole on the sleeve pipe, the end of spring be the perk shape and be deep into groove or the hole in.By edge, open four blind hole A, B, C, D in the outer face of two cover plates, the center line of two blind holes is symmetrical and parallel with the shaft coupling axis on each cover plate, and four blind hole center lines on two cover plates equate at grade and with the shaft coupling axial line distance.Be A and C center line point-blank, B and D center line wherein are separately installed with magnet piece 2 and 13 in two blind holes of A, B point-blank, in C, the D blind hole counterbalance weight 15 and 14 are housed.Outside the cover plate end face, shaft coupling bottom installs a lead 6 and 7 respectively vertically, makes it vertical with the shaft coupling center line.Lead and cover plate keep certain clearance, and gap length should not bump shaft coupling in the normal operation of maintenance equipment.During the shaft coupling rotation, the relative motion of cutting magnetic line is arranged between lead and magnet, the input end of amplifier 8 is inserted in the loop of lead 6 and lead 7 respectively, the input end of the output termination data collecting card 9 of amplifier 8, and the output terminal of data collecting card 9 inserts microcomputer 10.
The principle explanation: behind Fig. 1 electric motor starting, the shaft coupling that drives the plug-in torque-measuring apparatus of magneto-electric rotates, and promptly drives the magnet that is installed in the blind hole and rotates (effect of counterbalance weight is the rotary balance of compensating magnet) around the shaft coupling center line.Magnet is after the rotation of shaft coupling center line, and when passing through lead, the lead cutting magnetic line makes and produces a current signal in the loop, lead place at every turn.This current signal zooms into behind the standard signal by the capture card collection through amplifier, is transported to microcomputer.Microcomputer can obtain motor speed by twice signal time difference calculating same lead.The microcomputer mistiming that record left and right sides lead is passed on signal when the plug-in torque-measuring apparatus of magneto-electric does not have moment of torsion idle running earlier.In the operate as normal since moment of torsion cause the couplings elastic elements torsional deflection cause about two current in wire signal time differences change.Microcomputer can obtain Motor torque according to this change calculations.
Embodiment 2:
The utility model can be used for the occasion that many cover gearings need be measured moment of torsion and realize centralized displaying and control, as shown in Figure 2, structure and the principle of every cover measurement mechanism such as embodiment 1, the sensor current signal that each complete equipment upper conductor is obtained respectively zooms into behind the standard signal by the capture card collection, is transported to MICROCOMPUTER PROCESSING and can realizes through amplifier separately.Mounting spring shaft coupling respectively in many cover gearings, lead and amplifier, connected mode is as described in the claim 3.
Or with spring coupling identical in original and this claim 1 through adding needed 4 blind holes of format claim, and magnet is installed and counterbalance weight makes it to be revised as spring coupling 4, install lead 6 and 7 outward additional, and lead is connected with testing circuit, connected mode according to claim 1.
Claims (3)
1, the plug-in torque-measuring apparatus of a kind of magneto-electric, one spring coupling is arranged between the transmission shaft of motor shaft and working machine, it is characterized in that: spring coupling is made up of spring and two cover plates, respectively have two blind holes in the outer face of two cover plates, the center line of two blind holes and shaft coupling axis symmetry and parallel on each cover plate, four blind hole center lines on two cover plates equate at grade and with the shaft coupling axial line distance, magnet is installed in the blind hole of each cover plate, dress counterbalance weight in another blind hole, dress magnet in the center line blind hole point-blank on two cover plates, another adorns counterbalance weight, outside the cover plate end face, the shaft coupling bottom is installed a lead respectively vertically, make it vertical with the shaft coupling center line, lead and cover plate keep certain clearance, gap length should not bump shaft coupling in the normal operation of maintenance equipment, amplifier input terminal is inserted in the loop of two leads respectively, the input end of the output termination data collecting card of amplifier, the output terminal of data collecting card inserts microcomputer, and signal shows by display.
2, according to the plug-in torque-measuring apparatus of the magneto-electric of claim 1, it is characterized in that: described lead is with single or be connected in parallel by the lead of many appearances insulation and form.
3, according to the plug-in torque-measuring apparatus of claim 1 magneto-electric, it is characterized in that: after the lead of drawing from many covers shaft coupling inserts amplifier input terminal respectively, output terminal is inserted the distinct interface of data shared capture card, the output terminal of data collecting card inserts same microcomputer, and signal shows by same display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820079474XU CN201181299Y (en) | 2008-03-19 | 2008-03-19 | Magnetoelectricity type externally hung torque-measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820079474XU CN201181299Y (en) | 2008-03-19 | 2008-03-19 | Magnetoelectricity type externally hung torque-measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201181299Y true CN201181299Y (en) | 2009-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820079474XU Expired - Fee Related CN201181299Y (en) | 2008-03-19 | 2008-03-19 | Magnetoelectricity type externally hung torque-measuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201181299Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151933A (en) * | 2016-12-02 | 2018-06-12 | 湖南天能电机制造有限公司 | A kind of flexible connected torque rotary speed sensor device |
| CN109323790A (en) * | 2018-10-18 | 2019-02-12 | 中国航空综合技术研究所 | Rolling bearing no-load starting torque measuring device |
| CN109724728A (en) * | 2018-12-27 | 2019-05-07 | 中国科学院电工研究所 | A kind of non-contact torque measuring device with speed changing function |
-
2008
- 2008-03-19 CN CNU200820079474XU patent/CN201181299Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151933A (en) * | 2016-12-02 | 2018-06-12 | 湖南天能电机制造有限公司 | A kind of flexible connected torque rotary speed sensor device |
| CN109323790A (en) * | 2018-10-18 | 2019-02-12 | 中国航空综合技术研究所 | Rolling bearing no-load starting torque measuring device |
| CN109724728A (en) * | 2018-12-27 | 2019-05-07 | 中国科学院电工研究所 | A kind of non-contact torque measuring device with speed changing function |
| CN109724728B (en) * | 2018-12-27 | 2021-05-04 | 中国科学院电工研究所 | Non-contact torque measuring device with speed change function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 |