CN200975937Y - Anti-vibration device testing bench for twisted vibration - Google Patents
Anti-vibration device testing bench for twisted vibration Download PDFInfo
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- CN200975937Y CN200975937Y CN 200620043474 CN200620043474U CN200975937Y CN 200975937 Y CN200975937 Y CN 200975937Y CN 200620043474 CN200620043474 CN 200620043474 CN 200620043474 U CN200620043474 U CN 200620043474U CN 200975937 Y CN200975937 Y CN 200975937Y
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- torsional vibration
- vibration damper
- eliminating medium
- heat eliminating
- main frame
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Abstract
The utility model discloses a torsional vibration damper test stand, which comprises a servo system used to provide simulating torsional vibration to the torsional vibration damper and is composed of an electric motor, a coupling shaft positioned between the output axis of the electric motor and the torsional vibration damper to be tested, a signal wheel positioned on the coupling shaft and a torsional sensor arranged on the signal wheel; a machine controller which outputs dynamic torque signal to the electric motor and controls the operation of the electric motor according to the input periodic simple harmonic waveform; a control system, which is composed of a main frame and a I/O interface connected with the main frame and a high-speed interface module, wherein, the I/O interface is connected with the torsional sensor and the high-speed interface module is connected with the machine controller through the high-speed bus; the main frame is composed of a processing unit used for controlling the operation of the main frame and getting the performance parameter of the torsional vibration damper through the I/O interface; a memory unit which is connected with the processing unit; a periodic simple harmonic wave generation unit, which is connected with the processing unit and produces the periodic simple harmonic waveform and outputs to the machine controller through the high-speed interface module.
Description
Technical field
The utility model relates to a kind of proving installation of propulsion system torsional vibration damper, relates in particular to a kind of servo electric machine type torsional vibration damper testing table.
Background technology
Torsional vibration damper is crucial parts in diesel engine and the gasoline engine power plant, the destruction that the bent axle on its protection engine is exempted from the engine torque vibration, the reliability service of assurance engine.Design parameters such as the natural frequency of torsional vibration damper, amplitude, ratio of damping play crucial effects to its performance, and the torsional vibration damper of various models has different performance parameters, therefore when producing various torsional vibration damper in batches, perhaps need design parameter is completely examined, to carry out quality control, perhaps need to examine the performance parameter of existing various torsional vibration damper.
Torsional vibration damper is tested on the torsional vibration damper testing table.Existing testing table adopts mechanical means more, a kind of eccentricity excitation formula testing table for example shown in Figure 1, torsional vibration damper 100 is connected on the exciting case 103 by coupling shaft 101 and intermediate shaft 102, wherein coupling shaft 101 and intermediate shaft 102 are fixed on the bearing seat 104, and the axle between intermediate shaft and the exciting case 103 is provided with amplitude modulation flywheel 105.The axle of exciting case 103 other ends is provided with a belt pulley 106, and it is driven by vee belt 108 by motor 107.By changing the installation angle of every pair of exciting piece in the exciting case 103, can change the size of excitation moment, thus the output torsional vibration signals.
Structure bulky complex, technical indicator fall behind, shortcomings such as use is loaded down with trivial details, easy wearing and tearing yet above-mentioned this mechanical type torsional vibration damper testing table exists, it has limited the test of various torsional vibration damper, and can't all kinds of design parameters of various torsional vibration damper be completely examined.
Summary of the invention
The utility model provides a kind of servo electric machine type torsional vibration damper testing table that can the full test torsional vibration damper for solving the problems of the technologies described above.
The utility model is to solve the problems of the technologies described above the technical scheme that adopts to provide a kind of torsional vibration damper testing table, comprising:
What dress system is used for torsional vibration damper is provided the twisting vibration of simulation, and it comprises a motor, be connected in a coupling shaft between motor output shaft and the torsional vibration damper to be measured, be located at the signal wheel on the coupling shaft and be located at the torsional oscillation sensor that signal is taken turns;
Electric machine controller is according to the periodicity simple harmonic quantity waveform of input, to described motor output dynamic torque signal, the operation of control motor;
Supervisory system, the I/O interface and the High-speed Interface Card that comprise main frame and be connected with main frame, one of them I/O interface links to each other with described torsional oscillation sensor, and High-speed Interface Card is connected with described electric machine controller by high-speed bus; Described main frame comprises processing unit, in order to the operation of main control system, and the performance parameter of obtaining torsional vibration damper from described I/O interface; Storage unit is connected with processing unit; Periodically the simple harmonic wave generating unit is connected with processing unit, produces described periodic simple harmonic quantity waveform, exports electric machine controller to through described High-speed Interface Card.
Described torsional vibration damper testing table, wherein, described I/O interface comprises analog quantity I/O mouth and digital quantity I/O mouth.
Described torsional vibration damper testing table, wherein, the main frame of described supervisory system is made of main frame.
Described torsional vibration damper testing table, wherein, described servo-drive system further comprises the temperature sensor of being located on the described connection bearing, described temperature sensor links to each other with a described I/O interface.
Described torsional vibration damper testing table wherein, also comprises a circulating cooling system, and described circulating cooling system comprises:
One heat eliminating medium case, it to described motor output heat eliminating medium, reclaims described heat eliminating medium by the heat eliminating medium recirculatory pipe by the heat eliminating medium efferent duct;
One refrigeration unit, it is connected with described heat eliminating medium case with an output duct by an input pipe, and input pipe is provided with forcing pump;
Be provided with level switch in the described heat eliminating medium case, described heat eliminating medium efferent duct is provided with forcing pump and pressure transducer, and described heat eliminating medium recirculatory pipe is provided with temperature sensor; Each links to each other described level switch, forcing pump and described pressure transducer and temperature sensor with an I/O interface of computer supervisory control system.
Described torsional vibration damper testing table, wherein, described heat eliminating medium efferent duct is provided with pressure-indication means, and described heat eliminating medium recirculatory pipe is provided with temperature indicating device.
Described torsional vibration damper testing table wherein, respectively is provided with manual ball valve on described input, output duct and described heat eliminating medium efferent duct, the recirculatory pipe.
Servo electric machine type torsional vibration damper testing table of the present utility model is compared with mechanical type testing table in the past, has the following advantages:
1. can in the vibration frequency range of broad, carry out the dynamic test of torsional vibration damper.
2. can measure natural frequency, amplitude, ratio of damping and the dynamic torsional rigidity of torsional vibration damper comprehensively.
3. cooperation sweat box can be to the torsional vibration damper test of heating.
4. under can any running speed, carry out single humorous time torsional oscillation and load, perhaps a plurality of humorous time synthetic torsional oscillations load, thereby realize the simulation of actual engine torsional vibration signals.
Description of drawings
Below in conjunction with description of drawings embodiment of the present utility model, wherein:
Fig. 1 is the structural representation of existing a kind of eccentricity excitation formula testing table; Wherein Figure 1A is a front view, and Figure 1B is the vertical view of Figure 1A;
Fig. 2 is the structural representation of the utility model torsional vibration damper testing table first embodiment;
Fig. 3 is a computer mainframe structure block diagram embodiment illustrated in fig. 2;
Fig. 4 is a testing procedure process flow diagram embodiment illustrated in fig. 2;
Fig. 5 is the structural representation of the utility model torsional vibration damper testing table second embodiment;
Fig. 6 is a testing procedure process flow diagram embodiment illustrated in fig. 5.
Embodiment
See also shown in Figure 2ly, first embodiment of the utility model torsional vibration damper testing table mainly is made up of mechanical system, frequency conversion electrical control system, circulating cooling system and computer supervisory control system four parts.Wherein mechanical part mainly comprises a servomotor 201, and this motor 201 is connected with coupling shaft 203 1 ends by a shaft coupling 202, and coupling shaft 203 other ends are connected with torsional vibration damper 100.Coupling shaft 203 is installed on the base plate (figure does not show) by bearings mechanism.The power that motor 201 produces is delivered to tested torsional vibration damper 100 by shaft coupling 202.203 are provided with signal wheel 204 on this coupling shaft, and signal wheel 204 is provided with torsional oscillation sensor 205, is used to obtain the performance parameters such as natural frequency, amplitude and ratio of damping of torsional vibration damper 100.Also be provided with two temperature sensors 206 on the coupling shaft 203, be used to monitor the temperature of coupling shaft 203.
Frequency conversion electrical control system mainly comprises electric machine controller 210, it is connected with servomotor 201 on the one hand, be connected with computer supervisory control system 220 by high-speed bus 21 on the other hand, be used for obtaining periodically simple harmonic quantity waveform from computer supervisory control system 220, this periodicity simple harmonic quantity waveform has comprised the speed that dynamic torque signal is required that produces, frequency and amplitude that torque changes, electric machine controller 210 is in view of the above to motor 201 output dynamic torque signals, make the torsional vibration signals of motor 201 simulation actual engine, utilize this torsional vibration signals, just can well test torsional vibration damper 100.Electric machine controller 210 also obtains rotating speed, electric current and the fault-signal of motor 201, is transferred to computer supervisory control system 220 by high-speed bus 21 and analyzes and handle.
As shown in Figure 3, computer supervisory control system 220 comprises a main frame 221 and one group of I/O interface 222 that is connected with main frame 221 and High-speed Interface Card 223.Main frame 221 is made of main frame, it comprises a processing unit 2210, be connected in storage unit 2211, periodically simple harmonic wave generating unit 2212 and display device 2213 and 2214, one groups of I/O interfaces 222 of input equipment and High-speed Interface Card 223 are connected to processing unit 2210 equally.Processing unit 2210 is in order to the operation of main control system 221, and obtains the performance parameter of torsional vibration damper 100 from I/O interface 222, and is stored in the storage unit 2211.Periodically simple harmonic wave generating unit 2212 can produce the periodic simple harmonic quantity waveform that is used to produce dynamic torque signal according to the setting of user from the input equipment input, exports electric machine controller 210 to through High-speed Interface Card 223.
In the present embodiment, High-speed Interface Card 223 adopts Siemens DP5611 High-speed Interface Card, and it is connected with Siemens Profibus high-speed bus 21.Computer supervisory control system 220 is communicated by letter with electric machine controller 210 by High-speed Interface Card 223, with output speed and torque data to electric machine controller, and the rotating speed, electric current and the fault data that obtain motor 201 from electric machine controller 210.Include a plurality of analog quantity I/O mouths 224 and a plurality of digital quantity I/O mouth 225 in the I/O interface 222.Main frame 221 links to each other with above-mentioned torsional oscillation sensor 205 by one of them analog quantity I/O mouth, to obtain the performance parameter of torsional vibration damper to be measured 100; Also link to each other with temperature sensor 206 on the coupling shaft 203, to monitor the temperature of coupling shaft 203 by another analog quantity I/O mouth.
Adopt above structure testing table characteristics be that at 0～1500r/min (be in fundamental frequency 0～25Hz) range of speeds, by computer supervisory control system 220 produce flexibly the generation scopes between 0～250Hz optional frequency standard dynamic torque data, this scope has covered common all humorous times 3.0,6.0,4.5,7.5,9.0 of motor.This signal amplitude and frequency can accurately be controlled and regulate, and both can produce single humorous time torsional vibration signals, again can a plurality of humorous torsional vibration signals are synthetic, be loaded on the motor 201 by electric machine controller 210 then.Servomotor 201 adopts the vector driver, has high dynamic torque response, can be used for the simulation of engine oscillation exchange.
Cooling system of above-mentioned motor 201 configurations requires to select the cooling system kind according to power of motor and heat radiation, and power of motor is about 75KW in the present embodiment, therefore adopts circulating cooling system, adopts water as heat eliminating medium.This circulating cooling system 230 comprises a heat eliminating medium case 231, be connected with motor 201 with the heat eliminating medium recirculatory pipe of introducing from the casing top 235 by the heat eliminating medium efferent duct 232 that is connected with bottom half, the direction of arrow among Fig. 2 on efferent duct and the recirculatory pipe is the heat eliminating medium flow direction.Wherein heat eliminating medium efferent duct 232 is provided with pointer tensimeter 233 and pressure transducer 234, and heat eliminating medium recirculatory pipe 235 is provided with pointer thermometer 236 and temperature sensor 237; Pressure transducer 234 all is connected with an analog quantity I/O mouth of computer supervisory control system 220 with temperature sensor 237.Also be provided with a forcing pump 238 on the heat eliminating medium efferent duct 232.Be provided with two level switches 239 in the heat eliminating medium case 231, be used to monitor the liquid level upper and lower bound in the casing, and be provided with temperature sensor 240; Forcing pump 238 respectively is connected with a digital quantity I/O mouth of computer supervisory control system 220 with level switch 239.
Heat eliminating medium case 231 is connected with the refrigeration unit 243 of an output duct 242 with its below by an input pipe 241, and this input pipe 241 is provided with forcing pump 244.Temperature sensor 240 in the case also is connected with refrigeration unit 243 simultaneously.
Also can respectively be provided with manual ball valve 245 on above-mentioned heat eliminating medium efferent duct, recirculatory pipe 232,235 and above-mentioned input, the output duct 241,242, so that manually operation at any time.
Above-mentioned mechanical system, electric-control system and cooling system are by electric power system power supply, this electric power system mainly comprises heavy-current control system 250, it is directly to refrigeration unit 243 and electric machine controller 210 power supplies, and, power by 252 pairs of computer supervisory control systems of linear power supply 220 by uninterrupted power source 251 to uninterrupted power source 251 power supplies.The electric power of heavy-current control system 250 is provided by isolating transformer 253 by 380V alternating current 254.
Below in conjunction with Fig. 4 brief description testing process embodiment illustrated in fig. 2:
The operator installs torsional vibration damper to be measured earlier, and setting operational factor, the protective cover of closing test platform subsequently, after the action of holding fix sensor, press start button (step S1), normally whether computer supervisory control system 220 monitoring water tank liquid levels (step S2), if liquid level is normal, then detect water pump and whether move (step S3), wait for that then the water temperature in the heat eliminating medium recirculatory pipe 235 drops to setting value (step S4), after this condition satisfies, beginning testing process (step S5), in testing process, default rotating speed, 201 normal operations (step S6) of control servomotor, order each sensor (to comprise the torsional oscillation sensor 205 on the signal wheel afterwards, temperature sensor 206 on the coupling shaft) start working (step S7), monitor whether operate as normal (step S8) of circulating cooling system and servomotor subsequently, if fault reason (step S20), record data (step S21) and (step S22) out of service occur unusually then making.If it is not unusual, then system judges further whether motor speed reaches setting value (step S9), if do not reach, then return step S6, readjust rotating speed,, then begin to carry out the torsional oscillation test if reach, motor 201 is loaded torsional vibration signals, the parameter (step S10) of record torsional vibration damper 100.After a torsional oscillation test was finished, system judged whether to reach the maximum speed (step S11) of setting, if not, then return step S6 speed-raising, test next time, if reached maximum speed, then finish test (step S12).
In above-mentioned testing process, can cooperate sweat box, to torsional vibration damper 100 test of heating.
As previously mentioned, among the embodiment shown in Figure 2 according to the power selection type of cooling of servomotor, therefore hour at power of motor, can not adopt the liquid circulation type of cooling, and adopt other types of cooling, even only utilize the fan cooled of motor self, and needn't adopt extra cooling system, shown in second embodiment as shown in Figure 5.Like this, testing table of the present utility model include only servomotor 201 and and torsional vibration damper 100 between coupling part, electric machine controller 210, computer supervisory control system 220 and power pack.Correspondingly, its testing process is reduced to step as shown in Figure 6, does not promptly need to judge the state of cooling system, and directly behind pushbutton enable (step S1), enter testing process (step S5), and other steps are consistent with the first embodiment flow process shown in Figure 4.
Claims (7)
1. torsional vibration damper testing table, the performance parameter that is used to test torsional vibration damper is characterized in that, comprising:
Servo-drive system is used for torsional vibration damper is provided the twisting vibration of simulation, and it comprises a motor, be connected in a coupling shaft between motor output shaft and the torsional vibration damper to be measured, be located at the signal wheel on the coupling shaft and be located at torsional oscillation sensor on the signal wheel;
Electric machine controller is according to the periodicity simple harmonic quantity waveform of input, to described motor output dynamic torque signal, the operation of control motor;
Supervisory system, the I/O interface and the High-speed Interface Card that comprise main frame and be connected with main frame, one of them I/O interface links to each other with described torsional oscillation sensor, and High-speed Interface Card is connected with described electric machine controller by high-speed bus; Described main frame comprises processing unit, in order to the operation of main control system, and the performance parameter of obtaining torsional vibration damper from described I/O interface; Storage unit is connected with processing unit; Periodically the simple harmonic wave generating unit is connected with processing unit, produces described periodic simple harmonic quantity waveform, exports electric machine controller to through described High-speed Interface Card.
2. torsional vibration damper testing table as claimed in claim 1 is characterized in that, described I/O interface comprises analog quantity I/O mouth and digital quantity I/O mouth.
3. torsional vibration damper testing table as claimed in claim 1 is characterized in that the main frame of described supervisory system is made of main frame.
4. torsional vibration damper testing table as claimed in claim 1 is characterized in that described servo-drive system further comprises the temperature sensor of being located on the described connection bearing, and described temperature sensor links to each other with a described I/O interface.
5. torsional vibration damper testing table as claimed in claim 1 is characterized in that, also comprises a circulating cooling system, and described circulating cooling system comprises:
One heat eliminating medium case, it to described motor output heat eliminating medium, reclaims described heat eliminating medium by the heat eliminating medium recirculatory pipe by the heat eliminating medium efferent duct;
One refrigeration unit, it is connected with described heat eliminating medium case with an output duct by an input pipe, and input pipe is provided with forcing pump;
Be provided with level switch in the described heat eliminating medium case, described heat eliminating medium efferent duct is provided with forcing pump and pressure transducer, and described heat eliminating medium recirculatory pipe is provided with temperature sensor; Each links to each other described level switch, forcing pump and described pressure transducer and temperature sensor with an I/O interface of computer supervisory control system.
6. torsional vibration damper testing table as claimed in claim 5 is characterized in that, described heat eliminating medium efferent duct is provided with pressure-indication means, and described heat eliminating medium recirculatory pipe is provided with temperature indicating device.
7. torsional vibration damper testing table as claimed in claim 5 is characterized in that, respectively is provided with manual ball valve on described input, output duct and described heat eliminating medium efferent duct, the recirculatory pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620043474 CN200975937Y (en) | 2006-06-30 | 2006-06-30 | Anti-vibration device testing bench for twisted vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620043474 CN200975937Y (en) | 2006-06-30 | 2006-06-30 | Anti-vibration device testing bench for twisted vibration |
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| CN200975937Y true CN200975937Y (en) | 2007-11-14 |
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| CN 200620043474 Expired - Fee Related CN200975937Y (en) | 2006-06-30 | 2006-06-30 | Anti-vibration device testing bench for twisted vibration |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865180A (en) * | 2010-06-08 | 2010-10-20 | 中舟海洋科技(上海)有限公司 | Static pressure and vibration composite test device for hydraulic tube and connecting joint thereof |
| CN101865778A (en) * | 2010-06-10 | 2010-10-20 | 重庆大学 | Torsional vibration excitation device and test bed of vehicle drive system |
| CN101666676B (en) * | 2008-09-03 | 2011-06-15 | 中国船舶重工集团公司第七0四研究所 | Compound alternating torque and torsional vibration loading test platform |
| CN111380672A (en) * | 2018-12-29 | 2020-07-07 | 上海齐耀系统工程有限公司 | Test device for torsional vibration damper |
| CN112556825A (en) * | 2021-02-22 | 2021-03-26 | 南京航空航天大学 | Complex environment torsional vibration test system and test method thereof |
-
2006
- 2006-06-30 CN CN 200620043474 patent/CN200975937Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666676B (en) * | 2008-09-03 | 2011-06-15 | 中国船舶重工集团公司第七0四研究所 | Compound alternating torque and torsional vibration loading test platform |
| CN101865180A (en) * | 2010-06-08 | 2010-10-20 | 中舟海洋科技(上海)有限公司 | Static pressure and vibration composite test device for hydraulic tube and connecting joint thereof |
| CN101865180B (en) * | 2010-06-08 | 2012-07-04 | 中舟海洋科技(上海)有限公司 | Static pressure and vibration composite test device for hydraulic tube and connecting joint thereof |
| CN101865778A (en) * | 2010-06-10 | 2010-10-20 | 重庆大学 | Torsional vibration excitation device and test bed of vehicle drive system |
| CN101865778B (en) * | 2010-06-10 | 2011-06-15 | 重庆大学 | Torsional vibration excitation device and test bed of vehicle drive system |
| CN111380672A (en) * | 2018-12-29 | 2020-07-07 | 上海齐耀系统工程有限公司 | Test device for torsional vibration damper |
| CN112556825A (en) * | 2021-02-22 | 2021-03-26 | 南京航空航天大学 | Complex environment torsional vibration test system and test method thereof |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20071114 Termination date: 20120630 |