CN105203953B - The detection means and method of jet servo valve torque-motor output displacement - Google Patents
The detection means and method of jet servo valve torque-motor output displacement Download PDFInfo
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- CN105203953B CN105203953B CN201510651940.1A CN201510651940A CN105203953B CN 105203953 B CN105203953 B CN 105203953B CN 201510651940 A CN201510651940 A CN 201510651940A CN 105203953 B CN105203953 B CN 105203953B
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Abstract
The present invention relates to a kind of detection means and method of jet servo valve torque-motor output displacement, eccentric wheel is housed in the waist type groove of support block upper surface, eccentric wheel is fixedly connected with adjustment axle, support block opposite side is built with displacement transducer, installation tetragonal body framework above support block, installs fixture, motor and detecting core shaft in tetragonal body framework, detecting core shaft outer end hang with the iron core of displacement transducer；Signal Generator of Ultra-low Frequency connects motor coil by the V I signals modular converter of motor hysteresis tester, the voltage signal of displacement transducer connection LVDT modulating and demodulating signal modules, motor input current signal and LVDT modulation /demodulation is by industrial computer analog input card or the collection of X Y recorders, drawing, display.The present apparatus, with reference to input characteristics with regard to that can disclose the corresponding relation between the input of motor and output, to differentiate the performance of motor, parameter, analyzes the quality of motor performance and forming process using the characteristic of the output displacement of displacement transducer induction motor.
Description
Technical field
The present invention relates to a kind of detection means and method of torque-motor output displacement, especially a kind of telecommunications by setting
Number input be converted into mechanical signal parameter of curve output, with differentiate conversion performance, quality, the torque analyzed and studied
The detection means and method of motor output displacement.
Background technology
In modern automation control development field, using electric signal as voltage input, have it is efficient, simple and direct, it is characterized in that having
Imitate, be reliable and general, by the various forms such as short range, long-range, wired, controlled in wireless, possessing high science, practical value,
Through obtaining a wide range of applications, especially in high-tech area, it is in a leading position in terms of scientific technological advance and core status.
Electric signal is converted into mechanical signal by magnetic field and exported, so as to realize that every mechanical movement belongs to the technology at tip,
It is related to the amplification and conversion of electric signal.What the performance of amplification and conversion, quality and efficiency reflected is the height of scientific and technological level and ability
It is low.Should anti-stop signal decay and distortion, prevent again conversion after machinery output failure.
Representative products of the jet servo valve as switching mechanism, from the input of electric signal, mechanical signal is converted into through magnetic field,
Finally in the form of hydraulic power export, complete by electricity, magnetic, machine, liquid transfer process.Wherein hydraulic power can realize multistage amplification.
The core of servo valve class product is exactly " electricity-magnetic-machine " transfer process of the first order, realizes the structure i.e. jet servo of this function
The torque-motor part of valve（Hereinafter referred to as " motor "）.
The factor of the performance parameter and quality that influence motor has a lot, the main magnetic having in composition motor part, bullet
The material capability parameter of sexual function part and component；All links of motor and component and part forming process, such as design knot
Structure parameter, size, manufacturing process, management program and method etc..Related parameter is obtained finally by detection means, to differentiate horse
The performance and quality reached.So as to the performance of the material such as analyzing magnetic, elasticity, the design structure parameter of motor is each in forming process
Technique, the work quality of link.Especially when product enter engineering make the volume production stage more seem important, to ensure product quality,
Each link of stable prod forming process is indispensable means.
The content of the invention
The present invention is to provide for a kind of detection means and method of jet servo valve torque-motor output displacement, for accurate
Ground detection, obtain motor output parameter, compared with input signal and design parameter, the accordance that differentiates its performance, validity and
Reliability.
To achieve the above object, the technical scheme is that：A kind of inspection of jet servo valve torque-motor output displacement
Survey device, including displacement transducer, eccentric wheel, adjustment axle, support block, Signal Generator of Ultra-low Frequency, motor hysteresis tester,
LVDT modulating and demodulating signal modules, are equipped with eccentric wheel in the waist type groove of the support block upper surface, eccentric wheel and pass through support block
The adjustment axle of waist type groove be fixedly connected, support block opposite side is built with displacement transducer, and the axis of displacement transducer is vertical
In the longitudinal cross-section center of the waist type groove in support block, the top installation tetragonal body framework of support block, tetragonal body framework is interior to be installed
Fixture, fixture hang with the iron core of displacement transducer built with motor and detecting core shaft, the detecting core shaft outer end；The ultralow frequency
Signal generator connects motor coil by the V-I signal conversion modules of motor hysteresis tester, for producing motor detecting
Current signal, institute's displacement sensors connection LVDT modulating and demodulating signal modules, for exporting the electricity of motor nozzle oscillation displacement
The voltage signal of pressure signal, the motor input current signal and LVDT modulation /demodulation is recorded by industrial computer analog input card or X-Y
Instrument collection, draw, display.
The tetragonal body framework include mounting base, sunk screw, column, top board, fillister head screw, compression spring,
Screw rod, connected between the mounting base and top board by four root posts positioned at corner, wherein, mounting base has half to seal
Close the side of concave plane upward, and fixed by sunk screw and column, top board is fixed with fillister head screw and column, described
On two screw sleeves after compression spring, it is each passed through upper and lower four through holes of tetragonal body framework and screws in the screw in support block.
The adjustment axle is limited in the lateral attitude of kidney slot by positioning screw；Eccentric wheel is with the rotation of adjustment axle
Angle is 360 °.
The support block four corners below is fixed on bottom plate by hexagon socket head cap screw and splicing sleeve.
A kind of detection method of jet servo valve torque-motor output displacement, is comprised the following steps that：
Step 1：By the V-I signal conversion modules of motor coil connection motor hysteresis tester, drawn by aviation plug；
Step 2：Displacement transducer primary and secondary coil accesses the LVDT modulatedemodulates of motor hysteresis tester by aviation plug
Mode transfer block implements modulation /demodulation；
Step 2：The amount of moving up and down of rotation adjustment axial adjustment tetragonal body framework, to ensure at the iron core of displacement transducer
In the output zero-bit of displacement transducer；
Step 4：Inputted by Signal Generator of Ultra-low Frequency to motor hysteresis tester, setting motor command signal；
Step 5：By motor current signal, the voltage signal of nozzle oscillation displacement, pass through the aviation of motor hysteresis tester
The X-Y recorder of plug difference input data collection or the collection terminal board of industrial computer data capture card；
Step 6：Operational torque motor performance test software or X-Y recorder, gathered data, draw curve, calculating, beat
Print；
Step 7：According to motor performance test parameter：Rated current, maximum displacement（±）, it is zero bias, saturation current, linear
Degree, symmetry, gain, judge motor quality.
Beneficial effects of the present invention：
The present invention can fast, intuitively judge the performance of motor, parameter.Jet servo valve belongs to the product of high, precision and frontier,
High-tech area is widely used, with high content of technology, value costliness.The function of servo valve is mainly made up of two-stage, the letter of the first order
Number conversion and the second level power amplification, power amplification again can be set what amplification so that servo valve can control power output reach it is several
Tenth, the executing agency of up to a hundred, even upper kiloton.The function of motor is exactly the first order of servo valve, and function switching signal is servo
Valve completes the premise of functional requirement, is core.The realization of its function and ensure, factor, difficulty and the complexity being related to are far high
In power amplification function, the sport technique segment of motor is breached, the parameter for stabilizing motor means that the matter that ensure that servo valve
Amount,
The structure of the detecting device of the present invention is simple, compact, practical, cost of manufacture is not high, detection data validity and reliable
Degree is high, level and the exploration and raising of ability of overall process is formed beneficial to the analysis and judgment of performance, and motor, also beneficial to product
Performance improves grade.
The present invention detection method it is simple, it is clear, conveniently, easily grasp.
Brief description of the drawings
Fig. 1 is the torque-motor output displacement structure of the detecting device main sectional view of the present invention；
Fig. 2 is motor installation and fixture installation direction schematic diagram；
Fig. 3 is motor detects schematic diagram；
Fig. 4 is the detecting system block diagram of the present invention.
Embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in Figures 1 to 4, a kind of detection means of jet servo valve torque-motor output displacement, including bottom plate 1, branch
Bearing sleeve 2, hexagon socket head cap screw 3,6-pin socket 4, holding screw 5, displacement transducer 6, eccentric wheel 7, positioning screw 8, adjustment axle 9,
Mounting base 10, sunk screw 11, column 12, top board 13, fillister head screw 14, compression spring 15, screw rod 16, support block
17th, Signal Generator of Ultra-low Frequency, motor hysteresis tester, LVDT modulating and demodulating signals module, industrial computer analog input card or X-Y notes
Record instrument.
The structure of detection means is as follows：
Support block 17 4 is fixed on bottom plate 1 by hexagon socket head cap screw 3 and splicing sleeve 2 each four；Support block 17 it is upper
Surface Machining has waist type groove and sensor mounting hole, and the central axis of mounting hole is in the longitudinal cross-section center of waist type groove, from waist
The mounting hole that the nearest longitudinally outboard face of type groove is machined with adjustment axle 9 communicates with kidney slot；Eccentric wheel 7 is in place by adjusting axle 9
In kidney slot, adjustment axle 9 is limited in the lateral attitude of kidney slot by positioning screw 8；Eccentric wheel 7 and the positioning of adjustment axle 9
Screw 8 is tightened to component, and eccentric wheel 7 can be with 360 ° of rotations with adjustment axle 9.Mounting base 10 is machined with semiclosed concave plane
Upward, sunk screw 11 screws in from the opposite side of mounting base 10 and fixes four root posts 12, and top board 13 uses fillister head screw for side
14 be fixed on four root posts 12 after form a tetragonal body framework；The tetragonal body framework is positioned in the upper of support block 17
Side, mounting base 10 are in bottom, and on mounting base 10 concave plane opening port towards having sensor peace in support block 17
Fill hole side；After two screw rods 16 put compression spring, four through holes passed through on tetragonal body framework screw in support block 17
On screw, two horizontal directions of tetragonal body framework are spacing by two screw rods 16, are merely able to the surface waist of support block 17
Eccentric wheel in type groove rotates and moves up and down 3 millimeters；The outer surface of the parallel side of sensor mounting hole is set in support block 17
There are 6-pin socket 4, the lead-out wire access 6-pin socket 4 of displacement transducer 6.
The installation process of motor detection is as follows：
It is described with the hole of the bottom nozzle mouth line-up jig bottom plate centre bit of motor 18 after, be fixed in fixture 19；It is described
The delivery outlet of motor --- nozzle installs detecting core shaft 20, and detecting core shaft holds vertical position with fixture bottom surface；It is described to keep detection core
Axle horizontal position, along its opposite direction, by fixture from the mounting base concave plane opening direction of detection means, close to its concave plane bottom
Portion is filled to limit position；Position of the stationary fixture in tetragonal body framework（Refer to sketch 3）；The outer end of detecting core shaft is hung up
The iron core 21 of displacement transducer 6, it is ensured that iron core central axial can move freely in the endoporus of sensor.Refer to Fig. 2, Fig. 3.
The current signal of motor detecting, is occurred by Signal Generator of Ultra-low Frequency, the V-I signals through motor hysteresis tester
Modular converter is followed by motor coil.Armature drives jet pipe jet hole to swing in the presence of alternating magnetic field, the displacement of swing
The iron core of sensor has been passed to by detecting core shaft.One group of excitation coil of displacement transducer 8, two groups of secondary coils are differential connects
Enter LVDT modulating and demodulating signal modules, iron core makees cutting magnetic line movement in displacement transducer 6, and the change of its displacement is through adjusting
Demodulation module processed exports corresponding voltage signal.Motor input current signal and the voltage signal of LVDT modulation /demodulation are by industrial computer
Analog input card or X-Y recorder collection, draw, display.
As shown in figure 4, a kind of detection method of jet servo valve torque-motor output displacement, specific implementation and operating procedure
It is as follows：
Step 1：Motor coil connects the V-I signal conversion modules of motor hysteresis tester, is drawn by aviation plug；
Step 2：The primary and secondary coil of displacement transducer 8 accesses the LVDT modulatedemodulates of motor hysteresis tester by aviation plug
Mode transfer block implements modulation /demodulation；
Step 3：Rotation adjustment axle 9 adjusts the amount of moving up and down of tetragonal body framework, to ensure that iron core is in displacement transducer
6 output zero-bit；
Step 4：Inputted by Signal Generator of Ultra-low Frequency to motor hysteresis tester, setting motor command signal；
Step 5：By motor current signal, the voltage signal of nozzle oscillation displacement, pass through the aviation of motor hysteresis tester
Plug distinguishes input data collecting device（The collection terminal board of X-Y recorder or industrial computer data capture card）；
Step 6：Operational torque motor performance test software or X-Y recorder, gathered data, draw curve, calculating, beat
Print；
Step 7：According to motor performance test parameter：Rated current, maximum displacement（±）, it is zero bias, saturation current, linear
Degree, symmetry, gain, judge motor quality.
Claims (3)
1. a kind of detection means of jet servo valve torque-motor output displacement, including displacement transducer (6), eccentric wheel (7), tune
Bearing (9), support block (17), Signal Generator of Ultra-low Frequency, motor hysteresis tester, LVDT modulating and demodulating signal modules, it is special
Sign is：Support block (17) four corners below is fixed on bottom plate (1) by hexagon socket head cap screw (3) and splicing sleeve (2), described
Eccentric wheel (7), eccentric wheel (7) and the adjustment axle of the waist type groove through support block are housed in the waist type groove of support block (17) upper surface
(9) it is fixedly connected, the adjustment axle (9) is limited in the lateral attitude of kidney slot by positioning screw (8)；The eccentric wheel
(7) as the anglec of rotation of adjustment axle (9) is 360 °；Support block (17) opposite side is built with displacement transducer (6), and displacement passes
The longitudinal cross-section center of waist type groove of the axis of sensor (6) in support block (17), the top installation four of support block (17)
Cube framework, installs fixture (19) in tetragonal body framework, fixture (19) is built with motor and detecting core shaft (20), the detection core
Axle (20) outer end hangs with the iron core (21) of displacement transducer (6)；The Signal Generator of Ultra-low Frequency passes through motor hysteresis tester
V-I signal conversion modules connection motor coil, for producing the current signal of motor detecting, institute's displacement sensors (6) are even
Connect LVDT modulating and demodulating signal modules, for exporting the voltage signal of motor nozzle oscillation displacement, motor input current signal and
The voltage signal of LVDT modulating and demodulating signals module output is by industrial computer analog input card or X-Y recorder collection, drawing and display.
2. the detection means of jet servo valve torque-motor output displacement according to claim 1, it is characterised in that：It is described
Tetragonal body framework includes mounting base (10), sunk screw (11), column (12), top board (13), fillister head screw (14), pressure
Contracting spring (15), screw rod (16), pass through four root posts positioned at corner between the mounting base (10) and top board (13)
(12) connect, wherein, mounting base (10) has the side of semiclosed concave plane upward, and passes through sunk screw (11) and column
(12) fixed, top board (13) is fixed with column (12) with fillister head screw (14), and two screw rods (16) put compression bullet
After spring, it is each passed through upper and lower four through holes of tetragonal body framework and screws in the screw in support block (17).
A kind of 3. detection of the detection means of jet servo valve torque-motor output displacement using described in claim 1 or 2
Method, it is characterised in that comprise the following steps that：
Step 1：By the V-I signal conversion modules of motor coil connection motor hysteresis tester, drawn by aviation plug；
Step 2：Displacement transducer (6) primary and secondary coil accesses the LVDT signal modulations of motor hysteresis tester by aviation plug
Demodulation module implements modulation /demodulation；
Step 2：The amount of moving up and down of rotation adjustment axle (9) adjustment tetragonal body framework, to ensure the iron core of displacement transducer (6)
Output zero-bit in displacement transducer (6)；
Step 4：Motor command signal is inputted and set to motor hysteresis tester by Signal Generator of Ultra-low Frequency；
Step 5：By motor current signal, the voltage signal of nozzle oscillation displacement, pass through the aviation plug of motor hysteresis tester
The collection terminal board of the X-Y recorder of input data collection or industrial computer data capture card respectively；
Step 6：Operational torque motor performance test software or X-Y recorder, gathered data, draw curve, calculating and printing；
Step 7：According to motor performance test parameter：Rated current, maximum displacement（±）, it is zero bias, saturation current, the linearity, right
Title degree and gain, judge motor quality.
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| CN201510651940.1A CN105203953B (en) | 2015-10-10 | 2015-10-10 | The detection means and method of jet servo valve torque-motor output displacement |
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| CN201510651940.1A CN105203953B (en) | 2015-10-10 | 2015-10-10 | The detection means and method of jet servo valve torque-motor output displacement |
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| CN109738795B (en) * | 2018-12-09 | 2023-06-09 | 西安航天精密机电研究所 | Multistage motor rotor magnetic pole detection device |
| CN110360187A (en) * | 2019-08-26 | 2019-10-22 | 上海衡拓液压控制技术有限公司 | Jet pipe type Servo Valve's Slide Valve axial direction match grinding and zero characteristic test device |
| CN115425873B (en) * | 2022-08-30 | 2024-04-05 | 上海衡拓液压控制技术有限公司 | Zero position adjusting and controlling device of direct-acting linear force motor |
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