CN202947874U - Transmission system load running-in testing stand - Google Patents
Transmission system load running-in testing stand Download PDFInfo
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- CN202947874U CN202947874U CN 201220714392 CN201220714392U CN202947874U CN 202947874 U CN202947874 U CN 202947874U CN 201220714392 CN201220714392 CN 201220714392 CN 201220714392 U CN201220714392 U CN 201220714392U CN 202947874 U CN202947874 U CN 202947874U
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Abstract
The present utility model discloses a transmission system load running-in testing stand. The testing stand comprises a driving mechanism, loading mechanisms, a front rack, a rear rack, a hydraulic purifying system and an automatic measurement and control system; the driving mechanism is arranged on one end of the front rack, the driving mechanism is connected with the front rack through a linear guide rail; the loading mechanisms are arranged on two ends of the rear rack, the loading mechanisms are connected with the rear rack through a linear guide rail; motors of the driving mechanism and the loading mechanisms are connected with the automatic measurement and control system through a control system line; when a load running-in test is carried out, and the driving mechanism, the loading mechanisms and the hydraulic purifying system are respectively connected with a transmission system detection testing member. The testing stand is small in land occupation space and high in working efficiency, automatic positioning, automatic driving and loading are adopted, the electric enclosing and loading technology is adopted, and the power saving efficiency is high. The testing stand is suitable for transmission system load running-in experiments of agricultural machinery, engineering machinery and automobile fields.
Description
Technical field
It is a kind of plant equipment that the utility model relates to, particularly a kind of kinematic train load run-in stand.
Background technology
Current modern mechanical transmission series products, when off-highroad break-in is tested after completing assembling as kinematic train assemblies such as agricultural machinery, engineering machinery and automobiles, generally carry out the sampling Detection test in product, make complete machine utilize motor-driven to make simple running-in test on easy test platform, the installation time of this mode auxiliary mould is long, labour intensity is large, efficient is low, and there is no differential performance test and braking ability test, hidden danger of quality is many, if pinpoint the problems in test, must again disintegrate and reprocess.
Produce a large amount of metal fragments, assembling rubbish, moisture in machining, assembling process due to the mechanical drive series products.And prior art is not carried out the precision purification processing to the kinematic train assembly, and this type of rubbish remains in kinematic train, will damage the parts such as gear, bearing, affects product quality and usability.Have following defective:
1. test auxiliary work-piece is many, and pre-ETL estimated time of loading is long, and labour intensity is large, and production efficiency is low;
2. pilot project is single, and universal performance is poor;
3. applying working condition is poor, and noise is large, contaminated environment;
4. energy consumption is high, and antijamming capability is low, and the accuracy of data acquisition error is large;
5. hydraulic pressure oil purification precision is low, affects product serviceable life;
6. the product repair rate is high, increases enterprise's after cost.
Summary of the invention
The purpose of this utility model is to provide a kind of kinematic train load run-in stand.
The purpose of this utility model is achieved in that a kind of kinematic train load run-in stand, comprises driving mechanism, load maintainer, forebay, afer bay, hydraulic pressure cleaning system and automatic measuring and controlling system; Described driving mechanism is positioned at forebay one end, and driving mechanism is connected with forebay by linear guides; Described load maintainer is positioned at afer bay two ends, and load maintainer is connected with afer bay by linear guides;
Described driving mechanism and load maintainer motor and automatic measuring and controlling system are by the control system connection; During the load running-in test, described driving mechanism, load maintainer and hydraulic pressure cleaning system detect test specimen with kinematic train respectively and are connected.
Described driving mechanism comprises and drives alternating current generator, spring coupling, servo lifting mechanism, propons automatic positioning mechanism, servo transverse feed mechanism, fixed support mechanism, movable support mechanism, propons automatic positioning mechanism and flexible input mechanism; Flexible input mechanism is positioned at the driving mechanism below, and flexible input mechanism is connected successively by cylinder and fixed support mechanism, movable support mechanism; The propons automatic positioning mechanism is connected with movable support mechanism by jaw clutch; Driving alternating current generator is connected with servo lifting mechanism on being arranged on forebay by servo transverse feed mechanism; Servo lifting mechanism comprises two lifters, a reductor, servomotor, quadruplet guide piece and an elevating mechanism installing plate; There is linear guides to be connected between servo lifting mechanism and servo transverse feed mechanism;
Described load maintainer comprises the loading change speed gear box, loads alternating current generator, loads propulsive mechanism, back axle automatic positioning mechanism, servo longitudinal feed mechanism and Connection Block; Loading change speed gear box, loading alternating current generator, loading propulsive mechanism are connected successively by Connection Block, drive splines.Loading change speed gear box, loading alternating current generator, loading propulsive mechanism are respectively two covers; The back axle automatic positioning mechanism is connected with afer bay; Load maintainer is connected with afer bay by servo longitudinal feed mechanism, is provided with linear guides and precise ball screw pair between servo longitudinal feed mechanism and afer bay.
Described hydraulic pressure cleaning system comprises fuel tank, liquid level limiter, pneumatic diaphragm pump, flowrate control valve, pressure control valve, oil-water separator, accurate filter, strong magnetic filter; Be provided with pneumatic diaphragm pump on fuel tank, be provided with flowrate control valve and pressure control valve on the pressure pipeline that the pneumatic diaphragm pump oil-out connects, be provided with the three-stage filtration net in fuel tank; Accurate filter is connected with strong magnetic filter, oil-water separator on being arranged on the tank drainback mouth; The liquid level stop is connected with fuel tank; During experiment work, moving membrane pump oil-out is connected with the kinematic train oil-in through pressure pipeline, and the kinematic train oil return opening is connected with the tank drainback mouth through strong magnetic filter, oil-water separator.
Described automatic measuring and controlling system comprises Programmable Logic Controller, touch-screen, variable-frequence governor, constant voltage control module, torque sensor, speed probe and scrambler;
Described Programmable Logic Controller gathers the signal of torque sensor, speed probe and scrambler, passes to touch-screen by serial ports, display screen deal with data on touch-screen; And described Programmable Logic Controller comes the excitation of controlled loading motor by the rotating speed of the Communication Control loading motor of control variable-frequence governor by controlling the constant voltage control module; Described Programmable Logic Controller is connected with touch-screen by torque sensor, speed probe and scrambler; Described variable-frequence governor is connected with motor by the AC three-phase four-wire interface;
During test, the propons that kinematic train detects test specimen is connected with the propons automatic positioning mechanism; Back axle is connected with the back axle automatic positioning mechanism, by driving mechanism, kinematic train is detected test specimen input setting power, then is delivered to load maintainer by detecting test specimen;
Described automatic measuring and controlling system comprises the power energy-saving feedback system; In this power energy-saving feedback system, electric energy from the rectification unit of described variable-frequence governor, constant voltage control module through inversion unit returning part electric energy to drive motor, realize energy recycling by electric closed cell.
The beneficial effects of the utility model are:
1, save the space, increase work efficiency.
2, effectively improve cleanliness and the quality of equipment, reduced the content of metallic particles in oil product;
3, adopt the electrical-closed load technology, electric energy is high;
4, adopt robotization to control, have process data setting, storage, output function;
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is kinematic train load run-in stand plan structure schematic diagram of the present invention;
Fig. 2 is kinematic train load run-in stand master TV structure schematic diagram of the present invention;
Fig. 3 is the left TV structure schematic diagram of kinematic train load run-in stand of the present invention;
Fig. 4 is that hydraulic pressure cleaning system structural representation is looked on a kinematic train load run-in stand of the present invention left side;
in figure: 1. driving mechanism, 2. detection test specimen, 3. load maintainer, 4. automatic measuring and controlling system, 5. hydraulic pressure cleaning system, 6. servo longitudinal feed mechanism, 7. loading alternating current generator, 8. loading propulsive mechanism, 9. loading change speed gear box, 10. Connection Block, 11. afer bay, 12. back axle automatic positioning mechanism, 13. servo transverse feed mechanism, 14. driving alternating current generator, 15. servo lifting mechanism, 16. spring coupling, 17. flexible input mechanism, 18. fixed support mechanism, 19. movable support mechanism, 20. propons automatic positioning mechanism, 21. forebay, 22. fuel tank, 23. liquid level limiter, 24. pneumatic diaphragm pump, 25. flowrate control valve, 26. pressure control valve, 27. oil-water separator, 28. accurate filter, 29. strong magnetic filter.
Embodiment
By Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, a kind of kinematic train load run-in stand comprises driving mechanism 1, load maintainer 3, forebay 21, afer bay 11, hydraulic pressure cleaning system 5 and automatic measuring and controlling system 4; Described driving mechanism 1 is positioned at forebay 21 1 ends, and driving mechanism 1 is connected with forebay 21 by linear guides; Described load maintainer 3 is positioned at afer bay 11 two ends, and load maintainer 3 is connected with afer bay 11 by linear guides.
Described driving mechanism 1 and load maintainer 3 motors and automatic measuring and controlling system 4 are by the control system connection; During the load running-in test, described driving mechanism 1, load maintainer 3 and hydraulic pressure cleaning system 5 detect test specimen 2 with kinematic train respectively and are connected.
Described driving mechanism 1 comprises and drives alternating current generator 14, spring coupling 16, servo lifting mechanism 15, propons automatic positioning mechanism 20, servo transverse feed mechanism 13, fixed support mechanism 18, movable support mechanism 19, propons automatic positioning mechanism 20 and flexible input mechanism 17; Flexible input mechanism 17 is positioned at driving mechanism 1 below, and flexible input mechanism 17 is connected successively by cylinder and fixed support mechanism 18, movable support mechanism 19; Propons automatic positioning mechanism 20 is connected with movable support mechanism 19 by jaw clutch; Driving alternating current generator 14 is connected with servo lifting mechanism 15 on being arranged on forebay 21 by servo transverse feed mechanism 13; Servo lifting mechanism 15 comprises two platform lifters, a reductor, servomotor, quadruplet guide piece and an elevating mechanism installing plate; There is linear guides to be connected between servo lifting mechanism 15 and servo transverse feed mechanism 13;
Load maintainer 3 comprises loading change speed gear box 9, loads alternating current generator 7, loads propulsive mechanism 8, back axle automatic positioning mechanism 12, servo longitudinal feed mechanism 6 and Connection Block 10; Loading change speed gear box 9, loading alternating current generator 7, loading propulsive mechanism 8 are connected successively by Connection Block 10, drive splines; Loading change speed gear box 9, loading alternating current generator 7, loading propulsive mechanism 8 are respectively two covers; Back axle automatic positioning mechanism 12 is connected with afer bay 11; Load maintainer 3 is connected with afer bay 11 by servo longitudinal feed mechanism 6, is provided with linear guides and precise ball screw pair between servo longitudinal feed mechanism 6 and afer bay 11.
Described hydraulic pressure cleaning system 5 comprises fuel tank 22, liquid level limiter 23, pneumatic diaphragm pump 24, flowrate control valve 25, pressure control valve 26 oil-water separators 27, accurate filter 28, strong magnetic filter 29; Be provided with pneumatic diaphragm pump 24 on fuel tank 22, be provided with flowrate control valve 25 and pressure control valve 26 on the pressure pipeline that these pneumatic diaphragm pump 24 oil-outs connect, be provided with strong magnetic filter, oil-water separator, accurate filter three-stage filtration net in fuel tank 22; Accurate filter 28 is connected with strong magnetic filter 29, oil-water separator 27 on being arranged on fuel tank 22 oil return openings; The liquid level stop is connected with fuel tank 22; During experiment work, moving membrane pump oil-out is connected with the kinematic train oil-in through pressure pipeline, and the kinematic train oil return opening is connected with fuel tank 22 oil return openings through strong magnetic filter 29, oil-water separator 27.
Described automatic measuring and controlling system 4 comprises Programmable Logic Controller, touch-screen, variable-frequence governor, constant voltage control module, torque sensor, speed probe and scrambler;
Described Programmable Logic Controller gathers the signal of torque sensor, speed probe and scrambler, passes to touch-screen by serial ports, display screen deal with data on touch-screen; And described Programmable Logic Controller comes the excitation of controlled loading motor by the rotating speed of the Communication Control loading motor of control variable-frequence governor by controlling the constant voltage control module; Described Programmable Logic Controller is connected with touch-screen by torque sensor, speed probe and scrambler; Described variable-frequence governor is connected with motor by the AC three-phase four-wire interface;
During test, the propons that kinematic train detects test specimen 2 is connected with propons automatic positioning mechanism 20; Back axle is connected with back axle automatic positioning mechanism 12, detects test specimen 2 input setting powers by 1 pair of kinematic train of driving mechanism, then is delivered to load maintainer 3 by detecting test specimen 2;
Described automatic measuring and controlling system 4 comprises the power energy-saving feedback system; In this power energy-saving feedback system, electric energy from the rectification unit of described variable-frequence governor, constant voltage control module through inversion unit returning part electric energy to drive motor, realize energy recycling by electric closed cell.
During test, kinematic train is detected test specimen 2 to be arranged on testing table, start this testing table, automatic measuring and controlling system 4 carries out running-in test to detecting test specimen 2 steppings automatically, start simultaneously hydraulic pressure cleaning system 5, carry out cleaning with the large flow of high pressure to detecting test specimen 2 with the cleaning oil product, the cleaning oil product uses through strong magnetic filter, oil-water separator, accurate filter three-stage filtration net systemic circulation.Wherein the cleaning oil product is pressed the 3:2:1 composition with diesel oil, lubricating oil, THIF-305 oiliness clean-out system best proportion.
Kinematic train load run-in stand adopts the electrical-closed load technology by automatically locating, automatically drive, loading, and electric energy is up to 75%; Adopt the hydraulic pressure cleaning system, effectively improved cleanliness and the quality of equipment, reduce the content of metallic particles in oil product at 20/cm3, can remove 80% moisture, effectively improve the kinematic train quality, extension device serviceable life.Being applicable to agricultural machinery, engineering machinery and automotive field kinematic train load running-in test uses.
Claims (5)
1. a kinematic train load run-in stand, is characterized in that comprising driving mechanism (1), load maintainer (3), forebay (21), afer bay (11), hydraulic pressure cleaning system (5) and automatic measuring and controlling system (4); Described driving mechanism (1) is positioned at forebay (21) one ends, and driving mechanism (1) is connected with forebay (21) by linear guides; Described load maintainer (3) is positioned at afer bay (11) two ends, and load maintainer (3) is connected with afer bay (11) by linear guides;
Described driving mechanism (1) and load maintainer (3) motor and automatic measuring and controlling system (4) are by the control system connection; During the load running-in test, described driving mechanism (1), load maintainer (3) and hydraulic pressure cleaning system (5) detect test specimen (2) with kinematic train respectively and are connected.
2. kinematic train load run-in stand according to claim 1, it is characterized in that described driving mechanism (1) comprises driving alternating current generator (14), spring coupling (16), servo lifting mechanism (15), propons automatic positioning mechanism (20), servo transverse feed mechanism (13), fixed support mechanism (18), movable support mechanism (19), propons automatic positioning mechanism (20) and flexible input mechanism (17), flexible input mechanism (17) is positioned at below driving mechanism (1), flexible input mechanism (17) is by cylinder and fixed support mechanism (18), movable support mechanism (19) connects successively, propons automatic positioning mechanism (20) is connected with movable support mechanism (19) by jaw clutch, driving alternating current generator (14) is connected with servo lifting mechanism (15) on being arranged on forebay (21) by servo transverse feed mechanism (13), servo lifting mechanism (15) comprises two lifters, a reductor, servomotor, quadruplet guide piece and an elevating mechanism installing plate, there is linear guides to be connected between servo lifting mechanism (15) and servo transverse feed mechanism (13).
3. kinematic train load run-in stand according to claim 1, is characterized in that described load maintainer (3) comprises loading change speed gear box (9), loads alternating current generator (7), loads propulsive mechanism (8), back axle automatic positioning mechanism (12), servo longitudinal feed mechanism (6) and Connection Block (10); Loading change speed gear box (9), loading alternating current generator (7), loading propulsive mechanism (8) are connected successively by Connection Block (10), drive splines; Loading change speed gear box (9), loading alternating current generator (7), loading propulsive mechanism (8) are respectively two covers; Back axle automatic positioning mechanism (12) is connected with afer bay (11); Load maintainer (3) is connected with afer bay (11) by servo longitudinal feed mechanism (6), is provided with linear guides and precise ball screw pair between servo longitudinal feed mechanism (6) and afer bay (11).
4. kinematic train load run-in stand according to claim 1, is characterized in that described hydraulic pressure cleaning system (5) comprises fuel tank (22), liquid level limiter (23), pneumatic diaphragm pump (24), flowrate control valve (25), pressure control valve (26) oil-water separator (27), accurate filter (28), strong magnetic filter (29); Be provided with pneumatic diaphragm pump (24) on fuel tank (22), be provided with flowrate control valve (25) and pressure control valve (26) on the pressure pipeline that pneumatic diaphragm pump (24) oil-out connects, be provided with strong magnetic filter, oil-water separator, accurate filter three-stage filtration net in fuel tank (22); Accurate filter (28) is connected with strong magnetic filter (29), oil-water separator (27) on being arranged on fuel tank (22) oil return opening; The liquid level stop is connected with fuel tank (22); During experiment work, moving membrane pump oil-out is connected with the kinematic train oil-in through pressure pipeline, and the kinematic train oil return opening is connected with fuel tank (22) oil return opening through strong magnetic filter (29), oil-water separator (27).
5. a kind of kinematic train load run-in stand according to claim 1, is characterized in that described automatic measuring and controlling system (4) comprises Programmable Logic Controller, touch-screen, variable-frequence governor, constant voltage control module, torque sensor, speed probe and scrambler;
Described Programmable Logic Controller gathers the signal of torque sensor, speed probe and scrambler, passes to touch-screen by serial ports, display screen deal with data on touch-screen; Described Programmable Logic Controller comes the excitation of controlled loading motor by the rotating speed of the Communication Control loading motor of control variable-frequence governor by controlling the constant voltage control module; Described Programmable Logic Controller is connected with touch-screen by torque sensor, speed probe and scrambler; Described variable-frequence governor is connected with motor by the AC three-phase four-wire interface;
Described automatic measuring and controlling system (4) comprises the power energy-saving feedback system, in this power energy-saving feedback system, electric energy from the rectification unit of described variable-frequence governor, constant voltage control module through inversion unit returning part electric energy to drive motor, realize energy recycling by electric closed cell;
During test, the propons that kinematic train detects test specimen (2) is connected with propons automatic positioning mechanism (20); Back axle is connected with back axle automatic positioning mechanism (12), by driving mechanism (1), kinematic train is detected test specimen (2) input setting power, then is delivered to load maintainer (3) by detecting test specimen (2).
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| CN 201220714392 CN202947874U (en) | 2012-12-22 | 2012-12-22 | Transmission system load running-in testing stand |
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| CN 201220714392 CN202947874U (en) | 2012-12-22 | 2012-12-22 | Transmission system load running-in testing stand |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103529828A (en) * | 2013-10-29 | 2014-01-22 | 中国人民解放军军事交通学院 | Testing system and method of high-power automatic transmission control strategy |
| CN103994888A (en) * | 2014-06-04 | 2014-08-20 | 吉林大学 | Comprehensive transmission case test platform |
| CN106482946A (en) * | 2016-09-22 | 2017-03-08 | 淮南国力液压装备有限公司 | A kind of propons loading running-in testing stand |
| CN108801657A (en) * | 2018-08-29 | 2018-11-13 | 中国汽车工程研究院股份有限公司 | Heavy duty transmission tests loading system |
| CN108871805A (en) * | 2018-08-29 | 2018-11-23 | 中国汽车工程研究院股份有限公司 | Heavy-duty car tandem axle testing stand |
| CN109307607A (en) * | 2018-12-05 | 2019-02-05 | 湘潭科达电工专用成套设备有限责任公司 | A kind of tractor chassis two-shipper loading running-in purification Detecting data |
| CN109387364A (en) * | 2018-09-03 | 2019-02-26 | 芜湖天航装备技术有限公司 | A kind of centrifugal governor device test system and its method |
| CN109520751A (en) * | 2019-01-22 | 2019-03-26 | 湘潭科达电工专用成套设备有限责任公司 | Tractor chassis two-shipper loading running-in testing stand |
| CN109625320A (en) * | 2018-12-28 | 2019-04-16 | 中国兵器工业计算机应用技术研究所 | A kind of adjustment test of rotary-wing transmission system and torsion-testing apparatus, method |
| CN110398355A (en) * | 2019-07-11 | 2019-11-01 | 吉林瑞铭机电设备有限公司 | The EPS flank of tooth merges forming machine |
| CN112595531A (en) * | 2020-11-12 | 2021-04-02 | 洛阳西苑车辆与动力检验所有限公司 | No-load running-in test device and method for whole crawler-type harvester |
| CN113567229A (en) * | 2021-07-28 | 2021-10-29 | 中国航发湖南动力机械研究所 | Loading device for epoxy resin model rupture test and debugging method |
| CN114034496A (en) * | 2022-01-07 | 2022-02-11 | 江苏华永复合材料有限公司 | Universal axle automatic test bed |
| CN114459744A (en) * | 2022-01-27 | 2022-05-10 | 成都九系机器人科技有限公司 | High-speed and long-time running-in test device suitable for dynamic seal |
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2012
- 2012-12-22 CN CN 201220714392 patent/CN202947874U/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103529828B (en) * | 2013-10-29 | 2016-01-27 | 中国人民解放军军事交通学院 | The method of testing of high-power automatic transmission control strategy |
| CN103529828A (en) * | 2013-10-29 | 2014-01-22 | 中国人民解放军军事交通学院 | Testing system and method of high-power automatic transmission control strategy |
| CN103994888A (en) * | 2014-06-04 | 2014-08-20 | 吉林大学 | Comprehensive transmission case test platform |
| CN106482946A (en) * | 2016-09-22 | 2017-03-08 | 淮南国力液压装备有限公司 | A kind of propons loading running-in testing stand |
| CN108801657A (en) * | 2018-08-29 | 2018-11-13 | 中国汽车工程研究院股份有限公司 | Heavy duty transmission tests loading system |
| CN108871805A (en) * | 2018-08-29 | 2018-11-23 | 中国汽车工程研究院股份有限公司 | Heavy-duty car tandem axle testing stand |
| CN109387364A (en) * | 2018-09-03 | 2019-02-26 | 芜湖天航装备技术有限公司 | A kind of centrifugal governor device test system and its method |
| CN109307607A (en) * | 2018-12-05 | 2019-02-05 | 湘潭科达电工专用成套设备有限责任公司 | A kind of tractor chassis two-shipper loading running-in purification Detecting data |
| CN109625320B (en) * | 2018-12-28 | 2022-04-05 | 中国兵器工业计算机应用技术研究所 | Running-in test and torque test device and method for rotor wing transmission system |
| CN109625320A (en) * | 2018-12-28 | 2019-04-16 | 中国兵器工业计算机应用技术研究所 | A kind of adjustment test of rotary-wing transmission system and torsion-testing apparatus, method |
| CN109520751A (en) * | 2019-01-22 | 2019-03-26 | 湘潭科达电工专用成套设备有限责任公司 | Tractor chassis two-shipper loading running-in testing stand |
| CN110398355A (en) * | 2019-07-11 | 2019-11-01 | 吉林瑞铭机电设备有限公司 | The EPS flank of tooth merges forming machine |
| CN110398355B (en) * | 2019-07-11 | 2024-02-13 | 吉林瑞铭机电设备有限公司 | EPS tooth surface running-in forming machine |
| CN112595531A (en) * | 2020-11-12 | 2021-04-02 | 洛阳西苑车辆与动力检验所有限公司 | No-load running-in test device and method for whole crawler-type harvester |
| CN112595531B (en) * | 2020-11-12 | 2022-11-18 | 洛阳西苑车辆与动力检验所有限公司 | No-load running-in test device and method for whole crawler-type harvester |
| CN113567229A (en) * | 2021-07-28 | 2021-10-29 | 中国航发湖南动力机械研究所 | Loading device for epoxy resin model rupture test and debugging method |
| CN114034496A (en) * | 2022-01-07 | 2022-02-11 | 江苏华永复合材料有限公司 | Universal axle automatic test bed |
| CN114459744A (en) * | 2022-01-27 | 2022-05-10 | 成都九系机器人科技有限公司 | High-speed and long-time running-in test device suitable for dynamic seal |
| CN114459744B (en) * | 2022-01-27 | 2023-09-29 | 成都九系机器人科技有限公司 | Running-in test device applicable to dynamic seal at high speed for long time |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IP01 | Partial invalidation of patent right |
Commission number: 5W107907 Conclusion of examination: On the basis of the authorized text, the claim 1 is declared invalid, and the patent right is maintained on the basis of 2-5. Decision date of declaring invalidation: 20151216 Decision number of declaring invalidation: 27754 Denomination of utility model: Transmission system load running-in testing stand Granted publication date: 20130522 Patentee: Peng Xiang |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20151222 |
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| EXPY | Termination of patent right or utility model |