CN104156021A - Control method of mechanical transmission test bed - Google Patents
Control method of mechanical transmission test bed Download PDFInfo
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- CN104156021A CN104156021A CN201410397131.8A CN201410397131A CN104156021A CN 104156021 A CN104156021 A CN 104156021A CN 201410397131 A CN201410397131 A CN 201410397131A CN 104156021 A CN104156021 A CN 104156021A
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Abstract
The present invention discloses a control method of a mechanical transmission test bed. The control method of the mechanical transmission test bed mainly comprises the steps of constructing a test platform, and carrying out the rotating speed control, the load-side rapid zero returning setting, the load normal working torque setting and the torque direction control based on the constructed test platform, namely the test bed. The control method of the mechanical transmission test bed can overcome the defects in the prior art that the secondary damage is easy to occur, the reliability is low, the safety is poor, etc., and realizes the advantages that the secondary damage is not easy to occur, the reliability is high and the safety is good.
Description
Technical field
The present invention relates to the electric automatization control section in mechanical manufacturing field, particularly, relate to a kind of control method of Test-bed for Mechanical Drive.
Background technology
In the production testing process of mechanical drive (as reducer casing, wheel box, fluid coupling etc.), mostly all adopt motor and Electrified Transmission mechanical transmission to be carried out to the test of various speed and load, thereby mechanical parameters is verified.
The testing table of two motors of take is example, what adopt at present is that a motor (main motor) carries out speed control and power is provided, an other motor (load motor) adopts torque to control and provide load torque, and centre is tested mechanical parts and testing sensor (as rotational speed and torque instrument).This control method can meet experiment needs when machinery is normal, but when tested plant equipment there is bearing load and during fracture (because a lot of experimental projects are overload and torture test, this phenomenon exists the possibility of generation), load motor is oppositely by High Rotation Speed, as stopped not in time, on equipment under test, just may cause secondary to destroy and impact research and analysis below.
In realizing process of the present invention, inventor finds in prior art at least to exist and easily occurs that secondary destroys, reliability is low and the defect such as poor stability.
Summary of the invention
The object of the invention is to, for the problems referred to above, propose a kind of control method of Test-bed for Mechanical Drive, to realize, be difficult for occurring the advantage that secondary destroys, reliability is high and security is good.
For achieving the above object, the technical solution used in the present invention is: a kind of control method of Test-bed for Mechanical Drive, mainly comprises:
A, structure test platform;
B, the test platform based on building are testing table, carry out rotating speed control, load-side fly back setting, the normal operation torque setting of load and torque direction and control.
Further, in step a, described test platform, the main motor, mechanical fastener, speed reduction/change case, tested mechanical parts, speed/torque sensor and the load motor that are included in four quadrant running and connect successively;
By test platform, can the given positive and negative amplitude limit value of torque be set to the positive and negative reference value that absolute value equates, the load of being convenient to load motor drops into;
Described main motor is used for providing power, and load motor is pulled and provide load torque by main motor, and the speed/torque sensor to tested mechanical parts in operational process is measured, and completes various functions and performance test.
Further, in step b, the operation that described rotating speed is controlled, specifically comprises:
The speed setting value of main motor arranges as required, and other controlling unit arranges by motor nameplate parameter; Testing table unit will move by setting speed.
Further, the operation that described rotating speed is controlled, specifically also comprises that the speed of main motor is controlled, that is:
Speed setting value is speed preset value, and through comparer and speed feedback value comparison, output relatively exports electric machine controller to through PID arithmetical unit, then drives the generating unit speed of main motor adjustment test bed.
Further, the operation that described rotating speed is controlled, specifically also comprises the control of load motor, that is:
Speed setting value is speed preset value, this value is set as zero, through comparer and speed feedback value comparison, output relatively exports electric machine controller to through PID arithmetical unit, then drives main motor according to the torque-limiting of torque amplitude limit device, to make the generating unit speed of testing table move to back to zero direction;
When the torque-limiting of torque amplitude limit device is less than main motor output torque, load motor is pulled and according to torque amplitude limit device output load torque is set;
Power due to main motor during fault can not reach load motor, and load motor is braked and stops by the torque that arranges of torque amplitude limit device.
Further, in step b, the operation that described load-side fly back arranges, specifically comprises:
Load motor is passive generator operation under being pulled by main motor, and for reaching load side motor in any case in towed running status, the speed preset that load motor transmission control is set equals zero.
Further, in step b, the operation that the positive operation torque of described load arranges, specifically comprises:
Because the speed preset of load motor Electrified Transmission is zero, during by main motor towing, speed regulator output saturation i.e. maximum output;
At speed regulator outgoing side, amplitude limiting controller is set, the load torque settings that the set-point of amplitude limiting controller is load motor.
Further, the operation that the positive operation torque of described load arranges, specifically also comprises:
In needing the testing table of different loads torque direction, the given positive and negative amplitude limit value of torque is set to the positive and negative reference value that absolute value is equal the positive/negative amplitude limit by torque amplitude limit device is arranged, and the load of being convenient to load motor drops into.
Further, in step b, the operation that described torque direction is controlled, specifically comprises:
Absolute value by amplitude limit controlled quentity controlled variable equates, ensures the requirement of experiment of positive and negative two torque directions.
The control method of the Test-bed for Mechanical Drive of various embodiments of the present invention, comprises owing to comprising mainly: build test platform; Test platform based on building is testing table, carries out rotating speed control, load-side fly back setting, the normal operation torque setting of load and torque direction and controls; Can adopt loading motor speed preset is zero, and load torque control is carried out in the adjusting of Negotiation speed ring output violent change; Thereby can overcome, in prior art, easily generation secondary destroys, reliability is low and the defect of poor stability, to realize, is difficult for occurring the advantage that secondary destroys, reliability is high and security is good.
Other features and advantages of the present invention will be set forth in the following description, and, partly from instructions, become apparent, or understand by implementing the present invention.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for instructions, for explaining the present invention, is not construed as limiting the invention together with embodiments of the present invention.In the accompanying drawings:
Fig. 1 is the working principle of said set schematic diagram of the control of Test-bed for Mechanical Drive in the control method of Test-bed for Mechanical Drive of the present invention;
Fig. 2 is main electric machine control system logical diagram in the control method of Test-bed for Mechanical Drive of the present invention;
Fig. 3 is load motor control system logical diagram in the control method of Test-bed for Mechanical Drive of the present invention.
By reference to the accompanying drawings 1, in the embodiment of the present invention, Reference numeral is as follows:
The main motor of 1-; 2-mechanical connection component; 3-speed reduction/change case; The tested mechanical parts of 4-; 5-speed/torque sensor; 6-load motor.
By reference to the accompanying drawings 2, in the embodiment of the present invention, Reference numeral is as follows:
1-speed feedback value; 2-speed preset value; 3-comparer; 4-PID arithmetical unit; 5-electric machine controller; The main motor of 6-.
By reference to the accompanying drawings 3, in the embodiment of the present invention, Reference numeral is as follows:
1-speed feedback value; 2-speed preset value; 3-comparer; 4-PID arithmetical unit; 5-electric machine controller; The main motor of 6-; 7-torque amplitude limit device.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
According to the embodiment of the present invention, as shown in Figure 1, Figure 2 and Figure 3, provide a kind of control method of Test-bed for Mechanical Drive.
Technical scheme of the present invention, adopting loading motor speed preset is zero, load torque control is carried out in the adjusting of Negotiation speed ring output violent change.Make at the platform of testing for reducer casing, wheel box, fluid coupling etc., test process is safer, reliable.
Technical scheme of the present invention is controlled load torque when nominal situation, when there is mechanical fault, by setpoint torque, carries out fast braking parking.Down time is faster than free parking, the assurance of maximum possible equipment under test avoid secondary to destroy.
In technical scheme of the present invention, the control method of Test-bed for Mechanical Drive, comprises the following steps:
(1) testing table forms: testing table is by the rotating speed of the whole unit of main Electric Machine Control, and load motor provides test load torque, is tested mechanical parts, sensor, mechanical connection component between two motors.The AC Drive of DC bus type or interchange or the DC Transmission of four-quadrant rectification are selected in Electrified Transmission aspect, can save most possibly the experiment energy like this.
(2) the realization that testing table rotating speed is controlled: the speed setting value of main motor arranges as required, and other controlling unit arranges by motor nameplate parameter.Testing table unit will move by setting speed.
(3) the setting of testing table load-side fly back: load motor is passive generator operation under being pulled by main motor, for reaching load side motor in any case in towed running status, the speed preset that load motor transmission control is set equals zero.Like this, guaranteed the speed back to zero trend of load motor, under failure condition, controller is controlled motor and is moved to zero-speed direction.
(4) the normal operation torque setting of testing table load: because the speed preset of load motor Electrified Transmission is zero, during by main motor towing, speed regulator output saturation (maximum output).At speed regulator outgoing side, amplitude limiting controller is set, the load torque settings that the set-point of amplitude limiting controller is load motor.Like this, can carry out the normal operation torque of load by the mode of the given amplitude limit of torque sets.
(5) testing table torque direction is controlled: the requirement of experiment that equates to ensure positive and negative two torque directions by the absolute value of amplitude limit controlled quentity controlled variable.
During concrete enforcement, technical scheme of the present invention, mainly comprises:
(1) below, with simple 5 bi-motor testing tables, control system is described, produces and can derive thus other pattern with testing table.
(2) testing table is formed in the testing table of four quadrant running by the main motor 1 of Fig. 1, mechanical connection component 2, speed reduction/change case 3, tested mechanical parts 4, speed/torque sensor 5 and load motor 6, can the given positive and negative amplitude limit value of torque be set to the positive and negative reference value that absolute value equates, the load of being convenient to load motor drops into.By main motor 1, provide power, load motor 6 is pulled and provides load torque by main motor 1, and the speed/torque sensor 5 to tested mechanical parts 4 in operational process is measured, and completes various functions and performance test.
(3) the speed of main motor is controlled as shown in Figure 2, and speed setting value is speed preset value 2, and through comparer 3 and speed feedback value 1 relatively, the output of comparison exports electric machine controller 5 to through PID arithmetical unit 4, then drives main motor 6 and regulates the generating unit speed of Fig. 1.
(4) the control of load motor as shown in Figure 3, speed setting value is speed preset value 2, this value is set as zero, through comparer 3 and speed feedback value 1, compare, output relatively exports electric machine controller 5 to through PID arithmetical unit 4, then drives main motor 6 according to the torque-limiting of torque amplitude limit device 7, to make the generating unit speed of Fig. 1 move to back to zero direction.When the torque-limiting of torque amplitude limit device 7 is less than main motor output torque, load motor is pulled and according to torque amplitude limit device 7 output load torque is set.Power due to main motor during fault can not reach load motor, and load motor is braked and stops by the torque that arranges of torque amplitude limit device 7.
(5) in needing the testing table of different loads torque direction, can the given positive and negative amplitude limit value of torque be set to the positive and negative reference value that absolute value equates the positive/negative amplitude limit by torque amplitude limit device 7 is arranged, the load of being convenient to load motor drops into.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a control method for Test-bed for Mechanical Drive, is characterized in that, mainly comprises:
A, structure test platform;
B, the test platform based on building are testing table, carry out rotating speed control, load-side fly back setting, the normal operation torque setting of load and torque direction and control.
2. the control method of Test-bed for Mechanical Drive according to claim 1, it is characterized in that, in step a, described test platform, the main motor, mechanical fastener, speed reduction/change case, tested mechanical parts, speed/torque sensor and the load motor that are included in four quadrant running and connect successively;
By test platform, can the given positive and negative amplitude limit value of torque be set to the positive and negative reference value that absolute value equates, the load of being convenient to load motor drops into;
Described main motor is used for providing power, and load motor is pulled and provide load torque by main motor, and the speed/torque sensor to tested mechanical parts in operational process is measured, and completes various functions and performance test.
3. the control method of Test-bed for Mechanical Drive according to claim 2, is characterized in that, in step b, the operation that described rotating speed is controlled, specifically comprises:
The speed setting value of main motor arranges as required, and other controlling unit arranges by motor nameplate parameter; Testing table unit will move by setting speed.
4. the control method of Test-bed for Mechanical Drive according to claim 3, is characterized in that, the operation that described rotating speed is controlled specifically also comprises that the speed of main motor is controlled, that is:
Speed setting value is speed preset value, and through comparer and speed feedback value comparison, output relatively exports electric machine controller to through PID arithmetical unit, then drives the generating unit speed of main motor adjustment test bed.
5. the control method of Test-bed for Mechanical Drive according to claim 3, is characterized in that, the operation that described rotating speed is controlled specifically also comprises the control of load motor, that is:
Speed setting value is speed preset value, this value is set as zero, through comparer and speed feedback value comparison, output relatively exports electric machine controller to through PID arithmetical unit, then drives main motor according to the torque-limiting of torque amplitude limit device, to make the generating unit speed of testing table move to back to zero direction;
When the torque-limiting of torque amplitude limit device is less than main motor output torque, load motor is pulled and according to torque amplitude limit device output load torque is set;
Power due to main motor during fault can not reach load motor, and load motor is braked and stops by the torque that arranges of torque amplitude limit device.
6. according to the control method of the Test-bed for Mechanical Drive described in any one in claim 3-5, it is characterized in that, in step b, the operation that described load-side fly back arranges, specifically comprises:
Load motor is passive generator operation under being pulled by main motor, and for reaching load side motor in any case in towed running status, the speed preset that load motor transmission control is set equals zero.
7. the control method of Test-bed for Mechanical Drive according to claim 6, is characterized in that, in step b, the operation that the positive operation torque of described load arranges, specifically comprises:
Because the speed preset of load motor Electrified Transmission is zero, during by main motor towing, speed regulator output saturation i.e. maximum output;
At speed regulator outgoing side, amplitude limiting controller is set, the load torque settings that the set-point of amplitude limiting controller is load motor.
8. the control method of Test-bed for Mechanical Drive according to claim 7, is characterized in that, the operation that the positive operation torque of described load arranges, specifically also comprises:
In needing the testing table of different loads torque direction, the given positive and negative amplitude limit value of torque is set to the positive and negative reference value that absolute value is equal the positive/negative amplitude limit by torque amplitude limit device is arranged, and the load of being convenient to load motor drops into.
9. the control method of Test-bed for Mechanical Drive according to claim 8, is characterized in that, in step b, the operation that described torque direction is controlled, specifically comprises:
Absolute value by amplitude limit controlled quentity controlled variable equates, ensures the requirement of experiment of positive and negative two torque directions.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410397131.8A CN104156021B (en) | 2014-08-12 | 2014-08-12 | A kind of control method of Test-bed for Mechanical Drive |
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| CN201410397131.8A CN104156021B (en) | 2014-08-12 | 2014-08-12 | A kind of control method of Test-bed for Mechanical Drive |
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| CN104156021B CN104156021B (en) | 2016-06-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117054873A (en) * | 2023-10-12 | 2023-11-14 | 昆山美仑工业样机有限公司 | Four-motor loading test bed for testing electric drive system with high applicability |
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| KR20100102350A (en) * | 2009-03-11 | 2010-09-24 | 한국기계연구원 | Mechanical feed back type planetary gear box tester |
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| CN202916091U (en) * | 2012-11-21 | 2013-05-01 | 湖北航天技术研究院特种车辆技术中心 | Testing table for hydraulic automatic gearbox |
| CN103698126A (en) * | 2013-12-26 | 2014-04-02 | 北京配天大富精密机械有限公司 | Speed reducer testing equipment |
| CN203643163U (en) * | 2013-12-02 | 2014-06-11 | 蚌埠市行星工程机械有限公司 | Reducer bearing test bed |
| KR20140077012A (en) * | 2012-12-13 | 2014-06-23 | 우림기계(주) | Device for testing transmission |
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2014
- 2014-08-12 CN CN201410397131.8A patent/CN104156021B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100102350A (en) * | 2009-03-11 | 2010-09-24 | 한국기계연구원 | Mechanical feed back type planetary gear box tester |
| CN202420845U (en) * | 2012-01-19 | 2012-09-05 | 山东临工工程机械有限公司 | Online comprehensive performance test bed of transmission case |
| CN202916091U (en) * | 2012-11-21 | 2013-05-01 | 湖北航天技术研究院特种车辆技术中心 | Testing table for hydraulic automatic gearbox |
| KR20140077012A (en) * | 2012-12-13 | 2014-06-23 | 우림기계(주) | Device for testing transmission |
| CN203643163U (en) * | 2013-12-02 | 2014-06-11 | 蚌埠市行星工程机械有限公司 | Reducer bearing test bed |
| CN103698126A (en) * | 2013-12-26 | 2014-04-02 | 北京配天大富精密机械有限公司 | Speed reducer testing equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117054873A (en) * | 2023-10-12 | 2023-11-14 | 昆山美仑工业样机有限公司 | Four-motor loading test bed for testing electric drive system with high applicability |
| CN117054873B (en) * | 2023-10-12 | 2023-12-22 | 昆山美仑工业样机有限公司 | Four-motor loading test bed for testing electric drive system with high applicability |
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| CN104156021B (en) | 2016-06-22 |
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Address after: Room 6661, 6th Floor, Haiyu Commercial Building, No. 46 Fucheng Road, Haidian District, Beijing, 100041 Patentee after: Beijing Tiantuo Sifang Technology Co.,Ltd. Address before: Room 6661, 6th Floor, Haiyu Commercial Building, No. 46 Fucheng Road, Haidian District, Beijing, 100041 Patentee before: BEIJING TTSF TECHNOLOGY Co.,Ltd. |