CN1073697C - Fastening rotating body signal coupler - Google Patents
Fastening rotating body signal coupler Download PDFInfo
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- CN1073697C CN1073697C CN 97100173 CN97100173A CN1073697C CN 1073697 C CN1073697 C CN 1073697C CN 97100173 CN97100173 CN 97100173 CN 97100173 A CN97100173 A CN 97100173A CN 1073697 C CN1073697 C CN 1073697C
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Abstract
The present invention provides a signal coupler which is clamped on a rotary body, which is used for transferring working parameter electrical signals detected on the rotary body to the outer part of an axle in a non-contact way. The present invention belongs to the electromechanical field. The present invention is composed of energy input toroidal transformers 1.2.3.4 which are composed of eight pieces of arc transformers, signal output toroidal transformers 7.8.9.10, rotating circuit modules 5.6, and static circuit modules 11.12. The present invention amplifies working parameter signals measured on a rotating shaft into strong signals which are conversed into frequency signals through a V/F circuit to be processed for coupling to the rotating shaft exterior to be processed through electromagnetic induction in the non-contact way.
Description
The present invention is a kind of apparatus for transmitting signal that is installed on the rotating drive shaft, is used for transmitting non-contactly by sensitive element detected running parameter electric signal from the rotating drive shaft, and its function is similar to mechanical collector ring, belongs to dynamo-electric field.
When detecting the rotary body running parameter usually, must use special-purpose sensor, when for example carrying out torque measurement, utilize two groups of shaft couplings that through torque sensor is serially connected between power and the load.Form power-shaft coupling-sensor-shaft coupling-five a string structures of load.This is normally feasible, but in other occasions, for example axial arrangement does not allow lengthening, or equipment under test has assembled and can't dismantle, the occasion of through sensor just can't be installed, and at this moment available signal coupler provided by the present invention utilizes rotating drive shaft to be elastic body, with strain bridge is that sensitive element detects the power transformation signal Vi that rotating drive shaft when running produce (for example axial force, parameters such as moment of flexure and moment of torsion).
Here the key of problem just is that strain bridge has four lead-in wires to connect with axle outward, and wherein two is to go up a strain bridge for outside axle axle working power V0 is provided, and two is that detected mv level strain signal Vi need be passed to outside the axle stationary part and handles from axle.Traditional practice is four conducting rings of assembling on axle, with above-mentioned corresponding connection of four lead-in wires, four strip metal cursor slides is set outside axle, with the sliding contact of last four the electric ring cutting line directions of axle, forms four groups of collector ring.Its function is the outer energy of axle to be offered strain bridge make work power supply V0, and detection signal Vi on the axle is transmitted shaft handle outward.
This method exists three defectives: one, and the heating that brings by the friction of collector ring and limited rotating speed; Two, wearing and tearing and influence the life-span; Three, collector ring is beated and the interferometry reliability.
These three problems have seriously influenced the measurement of the running parameter of rotating drive shaft.
The objective of the invention is to provide a kind of fastening rotating body signal coupler, this device card is contained on the rotating drive shaft, can working power is provided and detected measuring-signal on the axle is passed to outside the axle non-contactly from the export-oriented axle of axle.
The object of the present invention is achieved like this: a kind of fastening rotating body signal coupler, be installed on the rotating drive shaft, include signal coupler and the strain bridge or the sensitive element that are sticked on rotating drive shaft, it is characterized in that: described signal coupler is to import static arc transformer (1) by the energy, (2), the energy receives rotating curved transformer (3), (4), spin stabilization power circuit module (5), rotation amplifying circuit module (6), signal is exported rotating curved transformer (7), (8), signal receives static arc transformer (9), (10), spacing wave exciting circuit module (11) and spacing wave processing circuit module (12) are formed;
The described energy receives that rotating curved transformer (3), (4) are fastening relatively to be installed on the described rotating drive shaft and to connect into the secondary of energy input toroidal transformer, the described energy is imported static arc transformer (1), (2) and is sleeved on the described energy relatively and receives on the stationary base in rotating curved transformer (3), (4) outside and connect into the elementary of energy input toroidal transformer, and the energy is imported static arc transformer (1), (2) and the energy and received between rotating curved transformer (3), (4) and maintain the gap; The described spacing wave exciting circuit of the elementary connection module (11) of described energy input toroidal transformer, the input end of the described spin stabilization power circuit of the secondary connection module (5) of described energy input toroidal transformer, the output terminal of described spin stabilization power circuit module (5) connects the working power input end of described strain bridge or sensitive element, and the measuring-signal output terminal of described strain bridge or sensitive element connects the input end of described rotation amplifying circuit module (6); Described spin stabilization power circuit module (5) is fixed on the energy and receives rotating curved transformer (3) and go up and be integral, and described rotation amplifying circuit module (6) is fixed on the energy and receives rotating curved transformer (4) and go up and be integral; Described signal exports that rotating curved transformer (7), (8) are fastening relatively to be installed on the described rotating drive shaft and to connect into the elementary of signal output toroidal transformer, described signal receives static arc transformer (9), (10) and is sleeved on described signal relatively and exports on the stationary base in rotating curved transformer (7), (8) outside and connect into the secondary of signal output toroidal transformer, and signal is exported rotating curved transformer (7), (8) and signal and received between static arc transformer (9), (10) and maintain the gap; The output terminal of the described rotation amplifying circuit of the elementary connection module (6) of described signal output toroidal transformer, the described spacing wave processing circuit module of secondary connection (12) of described signal output toroidal transformer.
Described spacing wave processing circuit module (12) is fixed on described signal and receives static arc transformer (10) and go up and become one, and described spacing wave exciting circuit module (11) is fixed on described signal and receives static arc transformer (9) and go up and become one.
Described gap is 0.4mm-0.6mm.
The present invention is made up of two groups of rotary transformers and attached circuit module, characteristics of the present invention: be that the small and weak signals of simulation such as the strain signal (as moment of torsion, moment of flexure, axial force) that will record on rotating drive shaft, temperature signal, vibration signal zoom into strong signal, be transformed into frequency signal through the v/f circuit again, the mode by electromagnetic induction passes out rotating drive shaft non-contactly and handles outward at last.
Fastening rotating body signal coupler of the present invention has following five advantages:
One. noncontact does not have frictionally provides the energy;
Two. the sensitive element on rotary body provides essential steady operation power supply;
Three. carry out amplifying nearby on the axle to detecting weak signal;
Four. analog signal conversion is become digital signal;
Five. digital signal is transmitted outside axle non-contactly and dealt with.
Since then, the present invention has reached the purpose that substitutes traditional slip ring device.
Describe the present invention below in conjunction with accompanying drawing.
Fig. 1 is a structural front view of the present invention
Fig. 2 is a structure right view of the present invention
Fig. 3 is a structure left view of the present invention
Fig. 4 is a circuit block diagram of the present invention
Fig. 5 is an energy input toroidal transformer side view of the present invention
Fig. 6 is an energy input toroidal transformer front view of the present invention
Fig. 7 is an energy input toroidal transformer wiring diagram of the present invention
Fig. 8 is a signal output toroidal transformer side view of the present invention
Fig. 9 is a signal output toroidal transformer front view of the present invention
Figure 10 is a signal output toroidal transformer wiring diagram of the present invention
Figure 11 is spacing wave exciting circuit module 11 excitation power supply circuit diagrams of the present invention
Figure 12 is spacing wave exciting circuit module 11 of the present invention and spacing wave processing circuit module (12) assembling synoptic diagram
Figure 13 is spacing wave processing circuit module 12 signal processing circuit figure of the present invention
Figure 14 is spin stabilization power circuit module 5 of the present invention and rotation amplifying circuit module 6 assembling synoptic diagram
Figure 15 is spin stabilization power circuit module 5 stabilized power supply circuit figure of the present invention
Figure 16 is that the present invention rotates amplifying circuit module 6 amplification circuit diagrams
Figure 17 is the V/f circuit diagram that the present invention rotates amplifying circuit module 6
Fastening rotating body signal coupler provided by the present invention, realize by following structure:
1.. energy input toroidal transformer; 2.. signal output toroidal transformer;
3.. the rotation circuit module; 4.. the stationary circuitry module.
1.. energy input toroidal transformer: import 1,2 and two groups of energy of static arc transformer by two groups of energy and receive rotating curved transformer 3,4 and form spin stabilization power circuit module
5, rotation amplifying circuit module 6 is separately fixed at the energy and receives on the rotating curved transformer 3,4;
2.. signal output toroidal transformer, export 7,8 and two groups of signals of rotating curved transformer by two groups of signals and receive static arc transformer 9,10 and form, spacing wave exciting circuit module 11 is separately fixed at signal with spacing wave processing circuit module 12 and receives on the static arc transformer 9,10;
3.. spin stabilization power circuit module 5 is made up of stabilized power supply circuit; Rotation amplifying circuit module 6 is made up of amplifying circuit and V/f circuit;
4.. spacing wave exciting circuit module 11 is made up of the excitation power supply circuit; Spacing wave processing circuit module 12 is made up of signal processing circuit.
On another angle, fastening rotating body signal coupler provided by the present invention is made up of with stationary part (the outer part of axle) two large divisions rotating part (axle top).
The signal that rotating part receives rotating curved transformer 3,4, spin stabilization power circuit module 5, rotation amplifying circuit module 6 by the energy that constitutes energy transformer and constitutes the signal toroidal transformer is exported rotating curved transformer 7,8 and is formed, and is installed on the rotating drive shaft 13.
Stationary part is imported static arc transformer 1,2 by the energy that constitutes energy input toroidal transformer, and the signal that constitutes signal output toroidal transformer receives parts such as static arc transformer 9,10 and spacing wave exciting circuit module 11, spacing wave processing circuit module 12 and forms.Stationary part is installed in the outside of rotating part non-contactly, and the gap is 0.4-0.6mm, and is fixed on the stationary base.
Package assembly of the present invention such as Fig. 1 to Fig. 3.
Because Testing requirement is sticked on the position that rotating drive shaft 13 is selected and is measured moment of torsion, moment of flexure, axle pressure, tension strain bridge, or thermometric, vibration measuring sensitive element 14.
The concrete mounting means of the present invention is as follows:
1. (1). spin stabilization power circuit module 5 is fixed on the energy receives on the rotating curved transformer 3 and become one;
(2). will rotate amplifying circuit module 6 and be fixed on the energy and receive on the rotating curved transformer 4 and become one;
(3). spacing wave processing circuit module 12 is fixed on signal receives on the static arc transformer 10 and become one;
(4). spacing wave exciting circuit module 11 is fixed on signal receives on the arc transformer 9 and become one;
2. (1). the energy received rotating curved transformer 3 and 4 usefulness screws are fastening is installed on the rotating drive shaft 13; (2). the energy is imported static arc transformer 1 and the 2 fastening energy that are installed on receive rotating curved transformer 3,4 outsides, and be fixed on a certain stationary base, the energy that makes the energy on the rotating drive shaft 13 receive rotating curved transformer 3,4 and stationary part is imported the gap that forms 0.4mm-0.6mm between the static arc transformer 1,2.
3. (1). signal exported rotating curved transformer 7 and 8 usefulness screws are fastening is installed on the rotating drive shaft 13; (2). it is fastening and be sleeved on signal and export rotating curved transformer 7,8 outsides that signal is received static arc transformer 9 and 10 usefulness screws, is fixed on the gap that makes it to form 0.4mm-0.6mm on the outer stationary base of axle.
4. install the back: the energy is imported static arc transformer 1,2 and the energy and is received rotating curved transformer 3,4 and just formed one group of complete energy and import toroidal transformer (Fig. 5 to Fig. 7).
Signal is exported rotating curved transformer 7,8 and signal and is received static arc transformer 9,10 and just formed one group of signal output toroidal transformer (Fig. 8 to Figure 10).
Principle of work of the present invention is as follows:
During on-the-spot the detection, rotating drive shaft 13 is in rotation, other rotating part rotates thereupon together, will be installed in the mv level measuring-signal of obtaining on the sensitive element 14 on the rotating drive shaft 13 simultaneously and be amplified by rotation amplifying circuit module 6, and convert frequency signal Vm to; Vm exports rotating curved transformer 7,8 and signal by signal and receives static arc transformer 9,10 and be coupled to non-contactly outside the rotating drive shaft 13; Amplify shaping through spacing wave processing circuit module 12 again and just formed the frequency signal Vf that is directly proportional with institute's detected parameters on the rotating drive shaft 13.The working power V0 of the amplifying circuit-V/F circuit in sensitive element 14 and the rotation amplifying circuit module 6 then imports static arc transformer 1,2 and the energy by the energy and receives rotating curved transformer 3,4 and non-contactly excitation power supply Vd is coupled on the rotating drive shaft 13 outside axle, is transformed into stabilized power source V0 by spin stabilization power circuit module 5 again.
Course of work labor of the present invention is as follows: (see figure 4)
(1). the crystal oscillator (J) in the spacing wave exciting circuit module 11 produces square-wave signal under the effect of integrated circuit 4060, carry out power amplification through triode and become power excitation power supply Vd (Figure 11).
(2) .Vd is transferred to that to import the power toroidal transformer that static arc transformer 1,2 forms by two groups of energy elementary, be coupled to non-contactly by electromagnetic induction that to receive the power toroidal transformer that rotating curved transformer 3,4 forms by the energy secondary, finished energy transmission; Power toroidal transformer secondary 3,4 is sent the AC signal Vd that obtains to spin stabilization power circuit module 5, carry out rectification by rectifier bridge, C1, C2 filtering, carry out a voltage stabilizing with voltage stabilizer 7808 or 7908, carry out the secondary voltage stabilizing by the circuit of forming by voltage reference 1403, amplifier 0P07 and triode 8050 in the spin stabilization power circuit module 5 again, produce the working power V0 (Figure 15) that offers sensitive element 14 (as strain bridge, thermometric, polarimetric element).
(3). the instrument amplifier AD620 that is delivered in the rotation amplifying circuit module of being made up of amplification-v/f circuit 6 by the mv level measuring-signal of obtaining on the sensitive element 14 amplifies, and becomes the strong signal Vm of kmv level (Figure 16).
(4) .Vm is converted to the frequency signal Vf (Figure 17) that is directly proportional with Vm by the v/f circuit LF331 in the rotation amplifying circuit module of being made up of amplification-v/f circuit 6.
(5) .Vf by export by signal signal output toroidal transformer that rotating curved transformer 7,8 forms elementary be coupled to non-contactly by signal receive the annular output transformer of signal that static arc transformer 9,10 forms secondary on.Amplify through the triode in the spacing wave processing circuit module 12 8050 at last, just formed the frequency signal Vf (Figure 13) that is directly proportional with the parameter that detected on the rotating drive shaft by R22, C10 filtering with after not gate 7404 shapings
Claims (3)
1. fastening rotating body signal coupler, be installed on the rotating drive shaft, include signal coupler and the strain bridge or the sensitive element that are sticked on rotating drive shaft, it is characterized in that: described signal coupler is to import static arc transformer (1) by the energy, (2), the energy receives rotating curved transformer (3), (4), spin stabilization power circuit module (5), rotation amplifying circuit module (6), signal is exported rotating curved transformer (7), (8), signal receives static arc transformer (9), (10), spacing wave exciting circuit module (11) and spacing wave processing circuit module (12) are formed; The described energy receives that rotating curved transformer (3), (4) are fastening relatively to be installed on the described rotating drive shaft and to connect into the secondary of energy input toroidal transformer, the described energy is imported static arc transformer (1), (2) and is sleeved on the described energy relatively and receives on the stationary base in rotating curved transformer (3), (4) outside and connect into the elementary of energy input toroidal transformer, and the energy is imported static arc transformer (1), (2) and the energy and received between rotating curved transformer (3), (4) and maintain the gap; The described spacing wave exciting circuit of the elementary connection module (11) of described energy input toroidal transformer, the input end of the described spin stabilization power circuit of the secondary connection module (5) of described energy input toroidal transformer, the output terminal of described spin stabilization power circuit module (5) connects the working power input end of described strain bridge or sensitive element, and the measuring-signal output terminal of described strain bridge or sensitive element connects the input end of described rotation amplifying circuit module (6); Described spin stabilization power circuit module (5) is fixed on the energy and receives rotating curved transformer (3) and go up and be integral, and described rotation amplifying circuit module (6) is fixed on the energy and receives rotating curved transformer (4) and go up and be integral; Described signal exports that rotating curved transformer (7), (8) are fastening relatively to be installed on the described rotating drive shaft and to connect into the elementary of signal output toroidal transformer, described signal receives static arc transformer (9), (10) and is sleeved on described signal relatively and exports on the stationary base in rotating curved transformer (7), (8) outside and connect into the secondary of signal output toroidal transformer, and signal is exported rotating curved transformer (7), (8) and signal and received between static arc transformer (9), (10) and maintain the gap; The output terminal of the described rotation amplifying circuit of the elementary connection module (6) of described signal output toroidal transformer, the described spacing wave processing circuit module of secondary connection (12) of described signal output toroidal transformer.
2. a kind of fastening rotating body signal coupler according to claim 1, it is characterized in that: described spacing wave processing circuit module (12) is fixed on described signal and receives static arc transformer (10) and go up and become one, and described spacing wave exciting circuit module (11) is fixed on described signal and receives static arc transformer (9) and go up and become one.
3. a kind of fastening rotating body signal coupler according to claim 1 is characterized in that: described gap is 0.4mm-0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97100173 CN1073697C (en) | 1997-01-16 | 1997-01-16 | Fastening rotating body signal coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97100173 CN1073697C (en) | 1997-01-16 | 1997-01-16 | Fastening rotating body signal coupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1188236A CN1188236A (en) | 1998-07-22 |
| CN1073697C true CN1073697C (en) | 2001-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97100173 Expired - Fee Related CN1073697C (en) | 1997-01-16 | 1997-01-16 | Fastening rotating body signal coupler |
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| Country | Link |
|---|---|
| CN (1) | CN1073697C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392681C (en) * | 2005-11-28 | 2008-06-04 | 天津大学 | Detection device and method for simulating dynamic parameters of large shaft |
| JP5415040B2 (en) * | 2008-08-01 | 2014-02-12 | 三重電子株式会社 | Module for automatic tool changer |
| CN113340516B (en) * | 2021-06-07 | 2023-03-17 | 中国工程物理研究院总体工程研究所 | Pressure measuring cell |
-
1997
- 1997-01-16 CN CN 97100173 patent/CN1073697C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1188236A (en) | 1998-07-22 |
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| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 97100173.1 of the invention patents in the current issue of authorization announcement, and at the same time corresponding to the 96244679.3 utility model patent to be given up, and in the 17 volume of the 43 issue of the new type of communique on the patent right to abandon the announcement. |
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| 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 |