CN102539174A - Load testing apparatus - Google Patents
Load testing apparatus Download PDFInfo
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- CN102539174A CN102539174A CN201110440995XA CN201110440995A CN102539174A CN 102539174 A CN102539174 A CN 102539174A CN 201110440995X A CN201110440995X A CN 201110440995XA CN 201110440995 A CN201110440995 A CN 201110440995A CN 102539174 A CN102539174 A CN 102539174A
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Abstract
A load testing apparatus comprises an assistant direct-current traction motor, a flexible universal transmission shaft, inertia flywheel set loads, a mounting underframe assembly, a safe protective cover assembly, a speed measurer, a motor mounting support and a motor axle suspension mounting support. Single flywheel plates with different masses are combined to form the two groups of adjustable inertia flywheel set loads with identical rotation inertia, and the two groups of adjustable inertia flywheel set loads can be separated or combined to form a rotation inertia integral load. The inertia flywheel set rotation inertia loads simulate traveling translation inertia work performance tests of a mining chopping electric locomotive under work conditions of traction acceleration start and brake deceleration stop; and by the aid of a ground testing apparatus platform for the inertia flywheel set loads to simulate running of the mining chopping electric locomotive, technical problems that test period is long, operation is inconvenient and economic performances are poor when a test parameter setting and work performance test is carried out on a special vehicle testing line are completely resolved.
Description
Technical field
The present invention relates to a kind of scalable load test device.
Background technology
Mining copped wave electric locomotive belongs to novel electric power electric Semiconductor Converting Technology speed governing electric drive system; Different with traditional highly energy-consuming electric mine locomotive rheostatic speed regulation electric drive system; Novel chopping regulating speed electric drive system is than the about 10%-25% of rheostatic speed regulation electric drive system saves energy; But the electric electronic current change technology device need carry out electric parameter, and traction, running under braking working condition tests parameter tuning and usability test are because mining copped wave electric locomotive belongs to large-scale traveling sports equipment; Mining in the past copped wave electric locomotive working condition tests parameter tuning and usability test are to carry out at special-purpose test run line, and test period length, inconvenient operation, economic performance are poor.
Summary of the invention
The objective of the invention is to overcome the above-mentioned defective that existing special-purpose test run thread test technical method exists; A kind of special-purpose test run line that breaks away from is provided; Can accomplish the ground-test plant experimental technique method that startup, braking deceleration parking operating mode traveling exercise test parameter tuning and usability test are quickened in traction at the mining copped wave electric locomotive of laboratory test platform simulation electric drive system.
Technical scheme of the present invention is: a kind of load test device; Inertial flywheel group load I in the said load test device connects with an end of flexible universal drive shaft I, and the flexible universal drive shaft I other end in the said load test device connects with accompanying examination dc traction motor shaft extension end; Velocity measuring device in the said load test device is installed on the inertial flywheel group load I; Accompany examination dc traction motor and inertial flywheel group load I in the said load test device form the whole load combinations I that connects through flexible universal drive shaft I on physical construction; Installation chassis assembly in the said load test device is used for fixing the said load combinations I that forms whole connection.
Said dc traction motor comprises being used for fixing accompanies motor erection support and the motor seize erection support that tries dc traction motor.
Said inertial flywheel group load I comprises rotatable portion, non-rotating part and axle, and rotatable portion and non-rotating part are fixedly mounted on the axle respectively.
The rotating part of said inertial flywheel group load I comprises fixedly flywheel, split flywheel and axle; Said fixedly flywheel is fixedly mounted on the axle, and split flywheel is fixedly mounted on fixedly on the flywheel; Said fixedly flywheel, split flywheel are combined as an integral installation and on axle, are rotated.
The non-rotating part of said inertial flywheel group load I comprises unassembled flywheel, axle and unassembled flywheel supporting seat; Said unassembled flywheel is fixedly connected on the unassembled flywheel supporting seat; Unassembled flywheel supporting seat and unassembled flywheel are as a whole.
Axle in the rotating part is provided with column part and tapering part, and column part partly is connected for integral type with tapering.
The fixedly flywheel of rotating part adopts on the cylindrical part that is fixedly mounted on axle; The split flywheel of rotating part is fastened on the tapering part of axle.
Said unassembled flywheel supporting seat contacts for no gap with the bottom of unassembled flywheel.
The taper fit of 1:50 to 1:10 is adopted in unassembled flywheel and rotating shaft, makes the unassembled flywheel and the rotating part of axle keep certain clearance.
The surface of contact of unassembled flywheel supporting seat and unassembled flywheel pig is an arc surface.
The load of said inertial flywheel group is provided with the safty shield assembly.
Another shaft extension end accompanying the examination dc traction motor is connected with another load combinations II.
The physical construction of said another load combinations II is identical with the physical construction of load combinations I, and another load combinations II and load combinations I are for being symmetrically distributed.
Distance between the circle central axis of the circle central axis of unassembled flywheel and fixedly flywheel that is installed together and split flywheel is the gap between the arc surface R on split flywheel and the unassembled flywheel supporting seat.
Split flywheel in the load of inertial flywheel group is the different flywheels of quality with unassembled flywheel.
Ground-test plant platform through the mining copped wave electric locomotive of inertial flywheel group load simulation translation inertia; Eliminated fully that test parameters is adjusted and usability test is carried out at special-purpose test run line; Test period is long, the technological barrier of inconvenient operation, economic performance difference.The present invention is designed to adjustable flywheel sheet group for multiple mining copped wave electric locomotive translation inertia equivalence inertial flywheel group load rotating inertia is provided with the load of inertial flywheel group.
Description of drawings
Fig. 1 is an one-piece construction front view of the present invention;
Fig. 2 is that the present invention accompanies examination dc traction motor vertical view;
Fig. 3 is the scalable inertial flywheel group load synoptic diagram of the embodiment of the invention 1;
Fig. 4 is the scalable inertial flywheel group load synoptic diagram of the embodiment of the invention 2;
Among the figure: 1. accompany the examination dc traction motor; 2. flexible universal drive shaft I; 3. inertial flywheel group load I; 4. installation chassis assembly; 5. safty shield assembly; 6. velocity measuring device; 7. motor erection support; 8. motor seize erection support; 9. another inertial flywheel group load II; 10. another flexible universal drive shaft II; 11. flywheel erection bolt I; 12. fixing flywheel; 13. split flywheel; 14. unassembled flywheel; 15. flywheel erection bolt II; 16. unassembled flywheel supporting seat; 17. rotating shaft; 18. the split flywheel in another inertial flywheel group load II; 19. the unassembled flywheel in another inertial flywheel group load II; 20. axle; R. unassembled flywheel supporting seat arc surface; 21. the vertical riser of unassembled flywheel supporting seat; 22. axle outer ring; 23. axle inner ring; 24. frame.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Embodiment 1
Referring to figs. 1 through 3, present embodiment comprises accompanies examination dc traction motor 1, flexible universal drive shaft I 2, inertial flywheel group load I 3, installation chassis assembly 4, velocity measuring device 6, motor erection support 7, motor seize erection support 8.Inertial flywheel group load I 3 connects with flexible universal drive shaft I 2 one ends, and flexible universal drive shaft I 2 other ends connect with accompanying examination dc traction motor 1 shaft extension end.Velocity measuring device 6 is installed on the inertial flywheel group load I 3; Accompany examination dc traction motor 1 and inertial flywheel group load I 3 on physical construction, to form the whole load combinations I that connects through flexible universal drive shaft I 2; Chassis assembly 4 is installed is used for fixing the load combinations I that forms whole connection.
Motor erection support 7 is used for fixing with motor seize erection support 8 accompanies examination dc traction motor 1.
Among Fig. 3, comprise flywheel erection bolt I 11, flywheel erection bolt II 15, unassembled flywheel supporting seat 16 in the inertial flywheel group load I 3, fixedly flywheel 12, split flywheel 13, unassembled flywheel 14 and axle 20.Wherein, rotating shaft 20 comprises an inner ring 23, rotating shaft 17 and axle outer ring 22, and fixedly flywheel 12 is fixedly mounted on the cylindrical part of rotating shaft and is fixedly mounted on together on the inner ring 23 of axle 20, is on-dismountable part; Split flywheel 13 is close to rotating shaft tapering face location with flywheel female cone degree face; Utilize flywheel erection bolt I 11 usefulness nuts to be installed in fixedly on the flywheel 12 and fastening; Be the variable mass part; Can dismantle or make up split flywheel 13 according to test situation, fixedly flywheel 12, split flywheel 13 and flywheel erection bolt I 11, rotating shaft 17, axle inner ring 23 be as a whole.Unassembled flywheel 14 is fixed on the unassembled flywheel supporting seat 16 vertical risers 21 through flywheel erection bolt II 15, and unassembled flywheel supporting seat 16 is fixedly mounted on the frame 24.Can will pull down with the fixing unassembled flywheels 14 of flywheel erection bolt II 15 according to the different operating modes of simulation, and make up with split flywheel 13 and fix with flywheel erection bolt I 11; Perhaps split flywheel 13 is pulled down, installed and fixed with unassembled flywheel 14 usefulness flywheel erection bolt II 15.Be installed on the axle inner ring 23 that also is fixedly mounted on axle 20 in the rotating shaft together with split flywheel 13 with flywheel erection bolt I 11 fixing fixedly flywheels 12; Be installed on the unassembled flywheel supporting seat 16 vertical risers 21 with flywheel erection bolt II 15 fixing unassembled flywheels 14, accompany examination dc traction motor 1 to be connected with the flywheel roller end through flexible universal drive shaft I 2.Form whole being installed on the axle inner ring 23 that also is fixedly mounted on axle 20 in the rotating shaft together with flywheel erection bolt I 11 fixing fixedly flywheel 12, split flywheels 13; Become rotatable flywheel part; When accompanying examination dc traction motor 1 to be rotated; The axle inner ring 23 that will drive axle 20 is rotated, so drive the fixedly flywheel of fixing with flywheel erection bolt I 11 12, the integral body that split flywheel 13 combines is rotated.Be installed on the supporting seat 16 vertical risers 21 and be fastened on the fixing unassembled flywheels 14 of flywheel erection bolt II 15 and form a fixing integral body on the frame 24, be non-rotating part through supporting seat 16.When axle 20 drives with the fixing fixedly flywheel 12 of flywheel erection bolt I 11, when split flywheel 13 is rotated non-rotating part (the unassembled flywheels of promptly fixing with flywheel erection bolt II 15 14 do not rotate).Be fixed on the vertical riser 21 of unassembled flywheel supporting seat with flywheel erection bolt II 15 fixing unassembled flywheels 14, unassembled flywheel supporting seat 16 is provided with arc surface R, is used to support unassembled flywheel 14, makes it keep stable.
Generally, velocity measuring device 6 is installed in the non-rotation position (i.e. the fixed position of axle outer ring 22) of inertial flywheel group load I 3 axis 20, the rotational speed of test flywheel rotating shaft.
Among Fig. 3, split flywheel 13 is the different flywheel of quality with unassembled flywheel 14, can the quality of split flywheel 13 be adjusted according to the simulation different working conditions, thereby reaches the kinetic energy of adjusting rotatable portion.
Among Fig. 3, be installed in the rotating shaft of axle on the inner ring 23 of axle 20, dress fixedly flywheel 12 positions is the identical cylinder of diameter, and adorning split flywheel 13 positions is tapering, and wherein column part installs and fixes flywheel 12, and tapering is partly installed split flywheel 13.When inertial flywheel group load I 3 being carried out the kinetic energy adjusting; (part of fixing flywheel 12 and split flywheel 13 being installed) in the rotating shaft in this part and being installed in split flywheel 13 on the tapering part can move along the shaft axis direction and be placed on the non-rotating part 14; And fixing, thereby become unassembled flywheel 14 with flywheel erection bolt II 15.Otherwise, also can move along the shaft axis direction and make flywheel female cone degree face be close to rotating shaft tapering face location by non-rotating part, utilize flywheel erection bolt I 11 usefulness nuts to be installed in fixedly on the flywheel 12, thereby become rotating part.Arc surface R contacts for no gap on unassembled flywheel 14 in the non-rotating part and the unassembled flywheel supporting seat 16; The unassembled flywheel 14 of non-rotating part moved along the shaft axis direction make flywheel female cone degree face be close to rotating shaft tapering face location; Utilize flywheel erection bolt I 11 usefulness nuts to be installed in fixedly 12 last times of flywheel; Promptly become split flywheel 13, produce the gap because the effect of rotating shaft tapering face location makes between the arc surface R on this split flywheel 13 and the unassembled flywheel supporting seat 16.The interior circle of split flywheel 13 and unassembled flywheel 14 preferably adopts cooperating of 1:10 tapering with rotating shaft, makes unassembled flywheel 14 dismounting backs keep certain clearance with the rotating shaft cylindrical.Unassembled flywheel 14 and circle central axis and fixedly the distance between the circle central axis of flywheel 12 and split flywheel 13 be the gap that produces between the arc surface R on split flywheel 13 and the unassembled flywheel supporting seat 16.
Inertial flywheel group load I 3 in this test unit can be simulated the traveling campaign usability test that mining copped wave electric locomotive traction quickens startup, braking deceleration parking.Start under the operating mode in traction; Accompany examination dc traction motor 1 as electric traction equipment; The mining copped wave electric locomotive translation inertia of inertial flywheel group load I 3 simulations, the situation and the mining copped wave electric locomotive acceleration startup operating mode that therefore increase inertial flywheel group load I 3 kinetic energy are equivalent.Under the braking deceleration operating mode; The mining copped wave electric locomotive translation inertia of inertial flywheel group load I 3 simulations; At this moment accompany examination dc traction motor 1 to get into the regenerative power generation state operation, consume the kinetic energy of inertial flywheel group load I 3, this situation and the equivalence of mining copped wave electric locomotive braking deceleration operating mode.Through utilizing the ground-test plant of the mining copped wave electric locomotive translation inertia of inertial flywheel group load I 3 simulation, test parameters is adjusted and need not fully to carry out at special-purpose test run line, has overcome the technological barrier of test period length, inconvenient operation, economic performance difference.
Among Fig. 4, the load test device in the embodiment two comprises: another flexible universal drive shaft II 10 and inertial flywheel load II 9; Wherein comprise the unassembled flywheel 19 in split flywheel 18, another inertial flywheel group load II in another inertial flywheel group load II 9.Embodiment two is with the difference of embodiment one: accompany another shaft extension end of examination dc traction motor 1 to be connected with another load combinations II; The structure of this load combinations II, working method all load combinations I structure, the working method with embodiment 1 are identical, with load combinations I among the embodiment 1 be symmetrical structure.
More than be one embodiment of the present invention, a preferred example.The scope that application of the present invention is asked for protection has more than and is limited to said embodiment.All technical schemes with the present embodiment equivalence all belong to protection scope of the present invention.
Claims (15)
1. load test device; It is characterized in that: the inertial flywheel group load I (3) in the said load test device connects with an end of flexible universal drive shaft I (2), and flexible universal drive shaft I (2) other end in the said load test device connects with accompanying examination dc traction motor (1) shaft extension end; Velocity measuring device (6) in the said load test device is installed on the inertial flywheel group load I (3); Accompany examination dc traction motor (1) and inertial flywheel group load I (3) in the said load test device form the whole load combinations I that connects through flexible universal drive shaft I (2) on physical construction; Installation chassis assembly (4) in the said load test device is used for fixing the said load combinations I that forms whole connection.
2. according to the described load test device of claim 1, it is characterized in that: said dc traction motor (1) comprises being used for fixing accompanies motor erection support (7) and the motor seize erection support (8) that tries dc traction motor (1).
3. according to the described load test device of claim 1, it is characterized in that: said inertial flywheel group load I (3) comprises rotatable portion, non-rotating part and axle (20), and rotatable portion and non-rotating part are fixedly mounted on respectively on the axle (20).
4. according to the described load test device of claim 3, it is characterized in that: the rotating part of said inertial flywheel group load I (3) comprises fixedly flywheel (12), split flywheel (13) and axle (20); Said fixedly flywheel (12) is fixedly mounted on the axle (20), and split flywheel (13) is fixedly mounted on fixedly on the flywheel (12); Said fixedly flywheel (12), split flywheel (13) are combined as an integral installation and on axle (20), are rotated.
5. according to the described load test device of claim 3, it is characterized in that: the non-rotating part of said inertial flywheel group load I (3) comprises unassembled flywheel (14), axle (20) and unassembled flywheel supporting seat (16); Said unassembled flywheel (14) is fixedly connected on the unassembled flywheel supporting seat (16); Unassembled flywheel supporting seat (16) is as a whole with unassembled flywheel (14) combination.
6. according to the described load test device of claim 4, it is characterized in that: the axle in the rotating part (20) is provided with column part and tapering part, and column part partly is connected for integral type with tapering.
7. according to the described load test device of claim 6, it is characterized in that: the fixedly flywheel (12) of rotating part adopts on the cylindrical part that is fixedly mounted on axle (20); The split flywheel of rotating part (13) is fastened on the tapering part of axle (20).
8. according to the described load test device of claim 5, it is characterized in that: said unassembled flywheel supporting seat (16) contacts for no gap with the bottom of unassembled flywheel (14).
9. according to the described load test device of claim 5, it is characterized in that: the taper fit of 1:50 to 1:10 is adopted in unassembled flywheel (14) and rotating shaft, makes the unassembled flywheel (14) and the rotating part of axle (20) keep certain clearance.
10. according to the described load test device of claim 8, it is characterized in that: unassembled flywheel supporting seat (16) is arc surface (R) with the surface of contact of unassembled flywheel (14) pig.
11. according to the described load test device of claim 1, it is characterized in that: said inertial flywheel group load (3) is provided with safty shield assembly (5).
12. according to the described load test device of claim 1, it is characterized in that: another shaft extension end accompanying examination dc traction motor (1) is connected with another load combinations II.
13. according to the described load test device of claim 12, it is characterized in that: the physical construction of said another load combinations II is identical with the physical construction of load combinations I, another load combinations II and load combinations I are for being symmetrically distributed.
14. according to the described load test device of claim 1 to 13, it is characterized in that: the distance between the circle central axis of the circle central axis of unassembled flywheel (14) and fixedly flywheel (12) that is installed together and split flywheel (13) is the gap between the arc surface R on split flywheel (13) and the unassembled flywheel supporting seat (16).
15. according to the described load test device of claim 1 to 13, it is characterized in that: split flywheel (13,18) in the inertial flywheel group load (3,9) and unassembled flywheel (14,19) are the different flywheels of quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110440995XA CN102539174A (en) | 2011-12-26 | 2011-12-26 | Load testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110440995XA CN102539174A (en) | 2011-12-26 | 2011-12-26 | Load testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102539174A true CN102539174A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110440995XA Pending CN102539174A (en) | 2011-12-26 | 2011-12-26 | Load testing apparatus |
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| CN (1) | CN102539174A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267617A (en) * | 2014-09-28 | 2015-01-07 | 江苏科技大学 | Dynamic load simulation testing test platform and testing method |
| CN112924148A (en) * | 2021-02-04 | 2021-06-08 | 成都超德创机电设备有限公司 | Electromagnetic brake fatigue test device |
| CN113624504A (en) * | 2021-06-29 | 2021-11-09 | 北京精密机电控制设备研究所 | Swimming engine load simulation device and method |
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| CN1995949A (en) * | 2006-12-31 | 2007-07-11 | 西南交通大学 | Railroad locomotive running simulation test bed |
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| CN201488880U (en) * | 2009-07-22 | 2010-05-26 | 安徽巨一自动化装备有限公司 | Test device of passenger vehicle four-terminal braking system |
| CN101825520A (en) * | 2009-10-27 | 2010-09-08 | 华中科技大学 | Whole railway traction locomotive tester |
| KR20110116732A (en) * | 2010-04-20 | 2011-10-26 | 주식회사 우진산전 | Power supply apparatus of simulation inertia loading device for railroad vehicle |
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| CN1796960A (en) * | 2004-12-28 | 2006-07-05 | 浙江工业大学 | Test-bed for slowing speed unit of current vortex |
| JP2007271447A (en) * | 2006-03-31 | 2007-10-18 | Railway Technical Res Inst | Railway vehicle brake performance testing machine and railway vehicle brake performance testing method |
| CN1995949A (en) * | 2006-12-31 | 2007-07-11 | 西南交通大学 | Railroad locomotive running simulation test bed |
| CN101281095A (en) * | 2008-05-16 | 2008-10-08 | 安徽巨一自动化装备有限公司 | Combined fly wheel loading unit capable of reconstructing |
| CN201488880U (en) * | 2009-07-22 | 2010-05-26 | 安徽巨一自动化装备有限公司 | Test device of passenger vehicle four-terminal braking system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267617A (en) * | 2014-09-28 | 2015-01-07 | 江苏科技大学 | Dynamic load simulation testing test platform and testing method |
| CN104267617B (en) * | 2014-09-28 | 2016-10-26 | 江苏科技大学 | A kind of dynamic load simulation test experiment platform and method of testing |
| CN112924148A (en) * | 2021-02-04 | 2021-06-08 | 成都超德创机电设备有限公司 | Electromagnetic brake fatigue test device |
| CN112924148B (en) * | 2021-02-04 | 2023-09-26 | 成都超德创科技有限公司 | Electromagnetic brake fatigue test device |
| CN113624504A (en) * | 2021-06-29 | 2021-11-09 | 北京精密机电控制设备研究所 | Swimming engine load simulation device and method |
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Application publication date: 20120704 |