CN108303647A - A kind of durable test machine of the direct current generator of new energy bicycle - Google Patents
A kind of durable test machine of the direct current generator of new energy bicycle Download PDFInfo
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- CN108303647A CN108303647A CN201810036027.4A CN201810036027A CN108303647A CN 108303647 A CN108303647 A CN 108303647A CN 201810036027 A CN201810036027 A CN 201810036027A CN 108303647 A CN108303647 A CN 108303647A
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- 239000006247 magnetic powder Substances 0.000 claims abstract description 27
- 230000033001 locomotion Effects 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000006399 behavior Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
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Abstract
The invention discloses a kind of durable test machines of the direct current generator of new energy bicycle, its key points of the technical solution are that including rack main body, fixed motor fixture, load simulator and test pavement simulating device；Load Simulation device includes jacking cylinder and pressure sensor, and fixed motor fixture includes fixed link and supporting rack, and fixed link middle-end is rotationally connected on supporting rack；The connection of fixed link one end waits for that measured motor, the other end are fixedly connected with pressure sensor, and jacking cylinder can apply load to measured motor is waited for；Test pavement simulating device includes driving wheel, wheel shaft, support column and magnetic powder brake, and wheel shaft is rotationally connected on support column, and driving wheel is fixedly connected on wheel shaft, and driving wheel is abutted against with tire；Magnetic powder brake is set to wheel shaft one end, and magnetic powder brake can provide wheel shaft the torsion of different directions, so as to simulate various surface conditions.The present invention is capable of the use environment of simulated machine real work, improves the accuracy of test result.
Description
Technical field
The present invention relates to Motor Measuring Technology fields, more specifically, it relates to a kind of direct current of new energy bicycle
The durable test machine of machine.
Background technology
The service life and reliability of motor are directly related to service life and the safety of the equipment using the motor.Therefore, right
Essential link in motor R＆D process when motor progress durability test.Existing new energy bicycle has using to be measured
Power source of the motor as new energy bicycle, for waiting for that working environment different for measured motor and load condition are to influence to wait for
Two key elements of measured motor durability.In the course of work for waiting for measured motor, during being travelled due to vehicle, due to road
The reason of face situation, waits for that measured motor is often subject to the reaction of jolting brought due to road surface；And in the use process for waiting for measured motor
In, due to the use of the variation of load and the slope on road surface cause the variation to motor load so that wait for measured motor need by
The case where to different loads.
Lack in the prior art for wait for measured motor working condition under use environment and load simulation so that electricity
The test accuracy of machine durability is not high.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide a kind of direct current generator of new energy bicycle
Durable test machine, the test machine are capable of the use environment of simulated machine real work, improve the accuracy of motor durability test.
To achieve the above object, the present invention provides following technical solutions：Include rack main body and wait for measured motor,
The motor output end to be measured is provided with tire, further includes being useful for fixation to wait for the fixation motor fixture of measured motor, for simulating
Load simulator, the test pavement simulating device for simulated roadway environment for loading variation；
The fixed motor fixture includes fixed link and is used to support the supporting rack of fixed link, and support frame as described above is fixed
It is set in rack main body, the fixed link middle-end is rotationally connected on supporting rack, enables fixed link using supporting rack as fulcrum
Do lever motion；Described fixed link one end is provided with for the fixed clamping device for waiting for measured motor；
The test pavement simulating device includes the driving wheel for simulated roadway, the wheel shaft for transmission, is used to support wheel shaft
Support column and magnetic powder brake for simulated roadway scene, the wheel shaft be rotationally connected on support column, the transmission
Wheel is fixedly connected on wheel shaft, and driving wheel can be rotated coaxially with wheel shaft, and driving wheel is abutted against with tire, and tyre rotation, which drives, to be passed
Driving wheel and wheel shaft are rotated with identical speed；The magnetic powder brake is set to wheel shaft one end, and the magnetic powder brake passes through defeated
The variation for entering electric current enables to magnetic powder brake that can provide wheel shaft different torsion, so as to simulate various road surface feelings
Condition；
The load simulator includes the jacking cylinder for providing load and the pressure for detecting load
Sensor, the pressure sensor are set to jacking cylinder and fixed link far between clamping device one end, and jacking cylinder can
By changing the pressure to pressure sensor, and by changing the pressure between tire and driving wheel.
The present invention is further arranged to：The driving wheel is provided with the obstacle block for simulating roughness pavement, the barrier
Hinder block to be set on the outer wheel face of driving wheel, can periodically be in contact with tire in driving wheel rolling process make tire by
To jolting.
The present invention is further arranged to：It is arranged to add to contact between driving wheel and tire on the outer wheel face of the driving wheel
The groove of area, the groove are set as arch groove and are adapted with the tire tread contour of tire.
The present invention is further arranged to：Support frame as described above mirror image is set in rack main body, and there are confessions in two supporting racks
The space of tyre rotation, the fixed link include two arm bars disposed in parallel and the activity that is connected on arm bar
Bar, two arm bar middle-ends are rotationally connected with respectively on two supporting racks, and described motion bar one end is rotationally connected with one
Arm bar one end, the motion bar other end are rotationally connected with another arm bar one end, the connecting pin of two arm bars and motion bar
Towards identical, the motion bar is fixedly connected with pressure sensor.
The present invention is further arranged to：The clamping device includes for the fixed standing screw and use for waiting for measured motor
In the fixing nut of limitation standing screw movement, the arm bar is provided with through-hole, the fixation far from load simulator one end
Screw rod is set to by the way that through-hole is interspersed on arm bar, and two fixing nuts are respectively arranged at standing screw and pass through through-hole both sides.
The present invention is further arranged to：The test pavement simulating device further includes being useful for measuring the survey for waiting for measured motor running speed
Speed variator, the speed measuring device are set to wheel shaft one end, and the operation for waiting for measured motor is can be derived that by the rotational angular velocity of wheel shaft
Speed.
In conclusion the invention has the advantages that：By the setting of Load Simulation device and fixed motor fixture,
Make it possible to through jacking cylinder to measured motor increase load is waited for, so as to the loading condition in simulated machine real work；
Simultaneously because fixed link can be movable with respect to supporting rack, enabling install various sizes of tire and carry out durable test so that
The scope of application of machine is wider；Institute in capable of being completed for motor real work in the durable test of motor by test pavement simulating device
Pass through the simulation of various road conditions so that the data result of the durable test machine of motor is more accurate.
Description of the drawings
Fig. 1 is a kind of positive structure diagram of the durable test machine of the direct current generator of new energy bicycle；
Fig. 2 is a kind of test structure schematic diagram of the durable test machine of the direct current generator of new energy bicycle；
Fig. 3 is the dimensional structure diagram of driving wheel；
Fig. 4 is the structural schematic diagram of fixed motor fixture.
Reference numeral：1, rack main body；2, fixed motor fixture；21, supporting rack；22, fixed link；221, arm bar；
222, motion bar；23, clamping device；231, standing screw；232, fixing nut；3, load simulator；31, jacking cylinder；32、
Pressure sensor；4, test pavement simulating device；41, driving wheel；411, obstacle block；412, groove；42, wheel shaft；43, support column；44, magnetic
Powder brake；5, tire；6, measured motor is waited for.
Specific implementation mode
With reference to the accompanying drawings and examples, the present invention is described in more detail.Wherein identical parts are with identical
Reference numeral indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down"
Refer to that the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and "outside" are referred respectively to towards or away from particular elements
The direction of geometric center.It is described herein to wait for that wheel hub motor is refered in particular in measured motor setting.
Shown in referring to Fig.1, the present invention provides a kind of durable test machines of the direct current generator of new energy bicycle, include platform
It frame body 1 and waits for measured motor 6, waits for that 6 output end of measured motor is provided with tire 5, further include being useful for fixation to wait for measured motor 6
Fixed motor fixture 2, for the load simulator 3 of fictitious load variation, for the test pavement simulating device 4 of simulated roadway environment；Gu
Determine motor fixture 2 to include fixed link 22 and be used to support the supporting rack 21 of fixed link 22, supporting rack 21 is fixedly installed on platform
On frame body 1,22 middle-end of fixed link is rotationally connected on supporting rack 21, and fixed link 22 is enable to make thick stick with supporting rack 21 for fulcrum
Bar moves；22 one end of fixed link is provided with for the fixed clamping device 23 for waiting for measured motor 6；Test pavement simulating device 4 includes to be used for
The driving wheel 41 of simulated roadway, for transmission wheel shaft 42, be used to support wheel shaft 42 support column 43 and be used for simulated roadway
The magnetic powder brake 44 of scene, wheel shaft 42 are rotationally connected on support column 43, and driving wheel 41 is fixedly connected on wheel shaft 42, transmission
Wheel 41 can be rotated coaxially with wheel shaft 42, and driving wheel 41 is abutted against with tire 5, and the rotation of tire 5 drives driving wheel 41 and wheel shaft
42 are rotated with identical speed；Magnetic powder brake 44 is set to 42 one end of wheel shaft, the variation that magnetic powder brake 44 passes through input current
Enable to magnetic powder brake 44 that can provide wheel shaft 42 different torsion, so as to simulate various surface conditions.Transmission
Wheel 41 is abutted against with tire 5 so that driving wheel 41 can be moved with tire 5 with identical speed, simultaneously because driving wheel 41 passes through
Wheel shaft 42 is fixedly connected on support column 43, and the magnetic powder brake 44 being connected on wheel shaft 42 can be by the variation for electric current
To apply different torsion to wheel shaft 42.When measured motor 6 starts, by magnetic powder brake 44 for wheel shaft 42 provide with
The opposite torsion of 42 rotation direction of wheel shaft, the simulation of road conditions when to complete for going up a slope, while magnetic powder brake can be passed through
44 provide torsion identical with 42 rotation direction of wheel shaft for wheel shaft 42, the simulation of road conditions when to complete for descending, simultaneously
When measured motor 6 is stopped, the torsion opposite with 42 rotation direction of wheel shaft can be provided by magnetic powder brake 44 thus
Durable test machine can be made rapidly to be stopped.It can be completed for electricity in the durable test of motor by test pavement simulating device 4
In machine real work pass through the simulations of various road conditions so that the data result of the durable test machine of motor is more accurate.Load mould
Quasi- device 3 includes the jacking cylinder 31 for providing load and the pressure sensor 32 for detecting load, and pressure passes
Sensor 32 is set to jacking cylinder 31 and fixed link 22 far between 23 one end of clamping device, and jacking cylinder 31 can pass through change
To the pressure of pressure sensor 32, change the pressure between tire 5 and driving wheel 41.By the application pressure of jacking cylinder 31,
So that jacking cylinder 31 has and upwards pressure, simultaneously because 22 one end of fixed link is connected to pressure sensor 32, one end connection
On waiting for measured motor 6, while middle-end is also attached on supporting rack 21, due to there was only that fixed link 22 is connected on supporting rack 21 one
The relative position of point can remain unchanged, so fixed link 22 can be that fulcrum does lever motion with supporting rack 21, simultaneously because
Jacking cylinder 31 is with the presence of upward power so that waits for that 6 one end of measured motor is forced downwards, and due to tire 5 and driving wheel 41
It abuts against so that wait for that measured motor 6 can be by corresponding load.By load simulator 3 and fix setting for motor fixture 2
It sets so that jacking cylinder 31 can increase load to measured motor 6 is waited for, and since the setting of pressure sensor 32 so that load is big
It is small to become controllable, so as to simulate the loading condition waited in 6 real work of measured motor so that the data of the durable test machine of motor
As a result more accurate.Simultaneously because fixed link 22 can be movable with respect to supporting rack 21, load simulator 3 is capable of providing pressure and makes
Tire 5 can keep making it possible to install various sizes of tire 5 with being bonded for ground and carrying out durable test so that machine it is suitable
It is wider with range.
With reference to shown in Fig. 3, as another embodiment of the present invention, driving wheel 41 is provided with for simulating roughness pavement
Obstacle block 411, obstacle block 411 are set on the outer wheel face of driving wheel 41, can periodically be occurred in 5 rolling process of tire
Tire 5 is set to be jolted.It is provided with obstacle block 411 on the outer wheel face of driving wheel 41 so that tire 5 is closed with 41 face paste of driving wheel
It, can be due to the setting of obstacle block 411 during rotation so that tire 5 in even running jolts under situation, while by
It trembles in that can treat the generation of measured motor 6 and jolt, waits for measured motor 6 during normal use by the road of out-of-flatness so as to simulate
Face and the case where jolted so that the measurement result of the durable test machine of motor is more accurate.
As another embodiment of the present invention, driving wheel 41 and tire 5 are arranged to add on the outer wheel face of driving wheel 41
Between contact area groove 412, groove 412 is set as arch groove and is adapted with the tire tread contour of tire 5.Since driving wheel 41 is made
To simulate the part on ground, need to provide frictional force to tire 5, simultaneously because test pavement simulating device 4 is needed by carrying tire 5
The completion of simulation for the power on different directions to to(for) various pavement behaviors can be to greatest extent by the setting of groove 412
Ground increases the contact area between tire 5 and driving wheel 41, to increase the frictional force between tire 5 and driving wheel 41, increases
Add the transmission efficiency between driving wheel 41 and tire 5, can preferably complete the biography between the power of driving wheel 41 and tire 5
It is dynamic so that the effect for being driven simulation is more preferable.
As another embodiment of the present invention, 21 mirror image of supporting rack is set in rack main body 1, is stayed in two supporting racks 21
There is a space rotated for tire 5, fixed link 22 includes two arm bars 221 and motion bar 222, in two arm bars 221
End is rotationally connected with respectively on two supporting racks 21, and 222 one end of motion bar is rotationally connected with 221 one end of arm bar, activity
222 other end of bar is rotationally connected with another 221 one end of arm bar, the connecting pin direction of two arm bars 221 and motion bar 222
Identical, motion bar 222 is fixedly connected with pressure sensor 32.Jacking cylinder 31 applies pressure to motion bar 222, due to motion bar
222 are rotatably connected on arm bar 221 so that motion bar 222 can be by rotation so that living when driving 221 activity of arm bar
Lever 222 is constant relative to the connection state of pressure sensor 32, and enables to arm bar 221 up and down and will not
The offset on position occurs.The supporting rack 21 of both sides setting simultaneously is more preferable for the support effect of fixed link 22, makes fixed link 22
It is more stably placed on supporting rack 21, while waiting for measured motor 6 by the power on two 221 directions of arm bar so that is to be measured
6 stress of motor more balances.
With reference to shown in Fig. 4, as another embodiment of the present invention, clamping device 23 includes to wait for measured motor 6 for being clamped
Standing screw 231 and fixing nut 232 for limit, arm bar 221 close to waiting for that 6 one end of measured motor is provided with through-hole,
Standing screw 231 is set to by the way that through-hole is interspersed on arm bar 221, and standing screw 231 is respectively set useful across through-hole both sides
In the fixing nut 232 that limitation standing screw 231 moves.The fixing nut 232 of both sides setting is so that standing screw 231 will not be with
It the rotation for waiting for measured motor 6 and is displaced, while the positional stability of screw rod 231 can be kept fixed.Simultaneously because to be measured
Motor 6 is arranged by the way that bearing is interspersed on standing screw 231, enabling by adjusting standing screw 231 relative to arm bar
The relative position of measured motor 6 is waited for adjust in 221 position so that wait for that measured motor 6 is capable of the arm bar 221 of opposite sides and lives
It is dynamic, in the case where device is integrally inactive, wait for that measured motor 6 can be changed relative to the position of driving wheel 41, reduction pair
Abrasion at driving wheel 41 1 extends the service life of test machine.
Shown in referring to Fig.1, as another embodiment of the present invention, test pavement simulating device 4 further includes being useful for measurement motor fortune
The speed measuring device of rotary speed, speed measuring device are set to 42 one end of wheel shaft, can be derived that by the rotational angular velocity of wheel shaft 42 to be measured
The speed of service of motor 6.Since driving wheel 41 and tire 5 abut against, so that the linear velocity phase of driving wheel 41 and tire 5
It is coaxially disposed with wheel shaft 42 Deng, driving wheel 41, driving wheel 41 is equal with the linear velocity of wheel shaft 42, and speed measuring device is set to wheel shaft 42
One end passes through the angular speed of wheel shaft 42 and driving wheel 41 so that speed measuring device is capable of the angular speed of wheel axle 42
Diameter can be derived that the linear velocity of tire 5, and the power situation so as to treat measured motor 6 is monitored.
Test machine is additionally provided with automatic control console, automatic control console respectively with wait for 44 phase of measured motor 6 and magnetic powder brake
Connection, automatic control console include for the circuit for waiting for the output cyclical signal of measured motor 6, waiting for that measured motor 6 receives the period
Property signal, execution cycle property power interruption braking.Automatic control console further includes being useful for exporting cyclical signal to magnetic powder brake 44
Circuit, magnetic powder brake 44 receives the cyclical signal, execution cycle property curent change, so that magnetic powder brake 44 is complete
Change at periodic torsion.It is above-mentioned to waiting for that the circuit that measured motor 6 and magnetic powder brake 44 export cyclical signal is existing
555 chips and its peripheral circuit composition periodic circuit, by for waiting for 6 sending cycle signal of measured motor so that wait for
6 generating period of measured motor ground power interruption braking, so as to be simulated under behaviour in service in test procedure for waiting for measured motor 6
Braking conditions, the simulation more closer to reality behaviour in service of the working condition for waiting for measured motor 6, so that the durable survey of motor
The data tested more are close to the case where reality uses so that test result is relatively reliable.And by sending out magnetic powder brake 44
Send cyclical signal so that 44 generating period of magnetic powder brake torsion variation, make so as to be simulated in test procedure
With the simulation by different road conditions for waiting for measured motor 6 under situation so that test result is relatively reliable.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of durable test machine of the direct current generator of new energy bicycle, includes rack main body (1) and waits for measured motor (6),
It is described to wait for that measured motor (6) output end is provided with tire (5), it is characterized in that：Further include being useful for the fixed fixation for waiting for measured motor (6)
Motor fixture (2), for fictitious load variation load simulator (3), for the test pavement simulating device (4) of simulated roadway environment；
The fixed motor fixture (2) includes fixed link (22) and is used to support the supporting rack (21) of fixed link (22), institute
Supporting rack (21) to be stated to be fixedly installed in rack main body (1), fixed link (22) middle-end is rotationally connected on supporting rack (21),
It can be that fulcrum does lever motion with supporting rack (21) to make fixed link (22)；Described fixed link (22) one end is provided with for fixing
Wait for the clamping device (23) of measured motor (6)；
The test pavement simulating device (4) includes the driving wheel (41) for simulated roadway, the wheel shaft (42) for transmission, for branch
The support column (43) of wheel shaft (42) and the magnetic powder brake (44) for simulated roadway scene are supportted, wheel shaft (42) rotation connects
It is connected on support column (43), the driving wheel (41) is fixedly connected on wheel shaft (42), and driving wheel (41) can with wheel shaft (42)
It rotates coaxially, driving wheel (41) is abutted against with tire (5), and tire (5) rotation drives driving wheel (41) and wheel shaft (42) with phase
It is rotated with speed；The magnetic powder brake (44) is set to wheel shaft (42) one end, and the magnetic powder brake (44) is by inputting electricity
The variation of stream enables to magnetic powder brake (44) that can provide wheel shaft (42) different torsion, so as to simulate various roads
Face situation；
The load simulator (3) includes the jacking cylinder (31) for providing load and the pressure for detecting load
Force snesor (32), the pressure sensor (32) are set to jacking cylinder (31) with fixed link far from clamping device (23) one end
Between, jacking cylinder (31) can be by changing the pressure to pressure sensor (32), and passes through change tire (5) and driving wheel
(41) pressure between.
2. a kind of durable test machine of direct current generator of new energy bicycle according to claim 1, it is characterized in that：The biography
Driving wheel (41) is provided with the obstacle block (411) for simulating roughness pavement, and the obstacle block (411) is convexly equipped in driving wheel (41)
Outer wheel face on, can periodically be in contact with tire (5) in driving wheel (41) rolling process makes tire (5) and to be measured
Motor (6) is jolted.
3. a kind of durable test machine of direct current generator of new energy bicycle according to claim 1 or 2, it is characterized in that：Institute
State the groove (412) that contact area between driving wheel (41) and tire (5) is arranged to add on the outer wheel face of driving wheel (41), institute
It states groove (412) and is set as arch groove and be adapted with the tire tread contour of tire (5).
4. a kind of durable test machine of direct current generator of new energy bicycle according to claim 1, it is characterized in that：The branch
Support (21) mirror image is set in rack main body (1), described there are the space rotated for tire (5) in two supporting racks (21)
Fixed link (22) includes two arm bars (221) disposed in parallel and the motion bar that is connected on arm bar (221)
(222), two arm bar (221) middle-ends are rotationally connected with respectively on two supporting racks (21), the motion bar (222) one
End is rotationally connected with arm bar (221) one end, and motion bar (222) other end is rotationally connected with another arm bar (221)
One end, two arm bars (221) and the connecting pin of motion bar (222) are towards identical, the motion bar (222) and pressure sensor
(32) it is fixedly connected.
5. a kind of durable test machine of direct current generator of new energy bicycle according to claim 4, it is characterized in that：The folder
It includes to be moved for the fixed standing screw (231) for waiting for measured motor (6) and for limiting standing screw (231) to hold device (23)
Dynamic fixing nut (232), the arm bar (221) are provided with through-hole, the standing screw far from load simulator (3) one end
(231) it is set on arm bar (221) by the way that through-hole is interspersed, two fixing nuts (232) are respectively arranged at standing screw (231)
Across through-hole both sides.
6. a kind of durable test machine of direct current generator of new energy bicycle according to claim 1, it is characterized in that：The road
Face simulator (4) further includes being useful for measuring the speed measuring device for waiting for measured motor (6) running speed, and the speed measuring device is set to wheel
Axis (42) one end, the speed of service for waiting for measured motor (6) is can be derived that by the rotational angular velocity of wheel shaft (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810036027.4A CN108303647B (en) | 2018-01-15 | 2018-01-15 | New energy is from durable test machine of direct current motor of driving |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810036027.4A CN108303647B (en) | 2018-01-15 | 2018-01-15 | New energy is from durable test machine of direct current motor of driving |
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| CN108303647A true CN108303647A (en) | 2018-07-20 |
| CN108303647B CN108303647B (en) | 2024-09-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729644A (en) * | 2020-12-25 | 2021-04-30 | 常州福普生电子科技有限公司 | Multi-channel pressure distribution measuring device and measuring method |
| CN113419171A (en) * | 2021-06-15 | 2021-09-21 | 金华卓远实业有限公司 | Durability testing machine for centrally-mounted motor |
| CN113702830A (en) * | 2021-09-24 | 2021-11-26 | 江苏智远智能驱动技术研究院有限公司 | Performance detection system of special motor |
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| CN104568460A (en) * | 2014-12-23 | 2015-04-29 | 中华人民共和国昆山出入境检验检疫局 | Electric power-assisted bicycle testing device and method |
| CN104865527A (en) * | 2015-06-09 | 2015-08-26 | 重庆大学 | Test bench of wheel hub motor of mini electric vehicle |
| CN207703996U (en) * | 2018-01-15 | 2018-08-07 | 项灿 | A kind of durable test machine of the direct current generator of new energy bicycle |
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| CN112729644A (en) * | 2020-12-25 | 2021-04-30 | 常州福普生电子科技有限公司 | Multi-channel pressure distribution measuring device and measuring method |
| CN113419171A (en) * | 2021-06-15 | 2021-09-21 | 金华卓远实业有限公司 | Durability testing machine for centrally-mounted motor |
| CN113702830A (en) * | 2021-09-24 | 2021-11-26 | 江苏智远智能驱动技术研究院有限公司 | Performance detection system of special motor |
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