CN109269699B - Electric motor car motor performance test bench - Google Patents
Electric motor car motor performance test bench Download PDFInfo
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- CN109269699B CN109269699B CN201811365667.6A CN201811365667A CN109269699B CN 109269699 B CN109269699 B CN 109269699B CN 201811365667 A CN201811365667 A CN 201811365667A CN 109269699 B CN109269699 B CN 109269699B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/24—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
- G01L3/242—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity by measuring and simultaneously multiplying torque and velocity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- General Physics & Mathematics (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model provides an electric motor car motor performance test bench, includes rack main part mount table, motor testing arrangement subassembly, is surveyed motor installing support. The motor mounting bracket to be tested comprises an upper fixture positioning and mounting station and a lower fixture positioning and mounting station which are alternatively used; the motor testing device assembly comprises an upper assembly and a lower assembly, wherein the upper assembly comprises a brake and a sensor; the lower assembly includes a sensor; the tested motor is correspondingly arranged on the same side of the upper component and the lower component, and drives the corresponding upper component or one side main shaft of the lower component, and the other side main shafts of the upper component and the lower component are connected through the transmission mechanism in a transmission way and run simultaneously. Different sensors are respectively arranged in the upper component and the lower component, so that the performance indexes of different types of motors can be measured through the electric vehicle motor performance test bed, the multi-purpose electric vehicle motor is achieved, the cost of experimental equipment and the space cost of a user are saved, and the test is also convenient.
Description
Technical Field
The invention relates to the technical field of testing and detecting of electric vehicle motors, in particular to an electric vehicle motor performance test bed which can adapt to the same test of different types of motors.
Background
Currently, the concept of green travel goes deep into the heart. The electric vehicle has low carbon, low energy consumption and environmental protection, accords with the idea of green travel, is economical and practical, and is deeply favored by people. The development of the electric bicycle and electric motorcycle industries is rapid, and some enterprises not only limit products to one type or another of electric bicycle and electric motorcycle, but also develop and produce in a diversified manner, so that the production of motors matched with the electric bicycle is diversified.
In the standards of GB 24155-2009 safety requirements of electric motorcycles and electric light motorcycles, QC/T792-2007 technical conditions of motors and controllers for electric motorcycles and electric light motorcycles, GB 17761-2018 general technical conditions of electric bicycles and the like, clear requirements are given to motor detection of light-weight electric vehicles. Development or mass production of electric vehicles is required to carry out omnibearing detection on a motor used in the electric vehicle according to national standards so as to ensure the whole quality of the electric vehicle, and the quality of the motor performance directly influences the whole quality of the electric vehicle.
Because the types of motors are different, the power rotating speed ranges and the differences of the structural forms are too large, the traditional testing equipment has limited testing ranges, can not simultaneously meet the testing of large-range motors, and the testing equipment for testing high-rotating-speed small-torque motors can not meet the testing of low-rotating-speed large-torque motors, and vice versa, so that a plurality of testing equipment meeting the requirements can not be purchased, the required laboratory area is increased, and the cost is increased. Based on the above circumstances, in order to adapt to the needs of enterprises and quality supervision and inspection institutions, it is necessary to develop an electric vehicle motor performance test stand, so that the electric vehicle motor performance test stand can adapt to the same test of different types of motors, reduce the cost of equipment, space, time and the like of clients, and facilitate the test.
Disclosure of Invention
The invention aims to provide an electric vehicle motor performance test bed.
The invention adopts the technical proposal for solving the technical problems in the prior art that:
the invention relates to an electric vehicle motor performance test stand, which comprises a stand main body mounting stand, a tested motor mounting bracket and a motor testing device assembly, wherein the tested motor mounting bracket and the motor testing device assembly are arranged on the stand main body mounting stand; the motor testing device assembly comprises an upper assembly and a lower assembly, the upper assembly and the lower assembly respectively correspond to an upper fixture and a lower fixture of a tested motor mounting bracket to position and mount a station, and the upper assembly comprises a brake and a sensor; the lower assembly includes a sensor; the tested motor is correspondingly arranged on the same side of the upper component and the lower component, the tested motor drives the corresponding main shaft of the upper component or the lower component to rotate, and the main shafts of the upper component and the lower component are connected through the transmission mechanism in a transmission way and simultaneously run.
The invention can also adopt the following technical measures:
the rotor of the hub motor is connected with one end of the main shaft of the upper assembly, drives the main shaft of the upper assembly to rotate, and the other end of the main shaft of the upper assembly drives the main shaft of the lower assembly to simultaneously operate through a transmission mechanism; or the output shaft of the middle motor is connected with one end of the main shaft of the lower assembly to drive the main shaft of the lower assembly to rotate, and the other end of the main shaft of the lower assembly drives the main shaft of the upper assembly to simultaneously operate through the transmission mechanism.
The upper assembly and the lower assembly are vertically arranged and are respectively arranged between a group of bearings; the two groups of bearings are respectively supported and fixed on two bearing seats which are integrally arranged at the upper part and the lower part.
The bearing seat is fixedly connected with the rack main body mounting table.
The rack main body mounting table is fixedly provided with a mounting plate, and the bearing seat is fixedly connected with the mounting plate.
The upper fixture positioning and mounting station is provided with a center pressing plate mechanism which is coaxially positioned with the center of the tested hub type motor; and the lower fixture positioning and mounting station is provided with a mounting hole, and is connected with the tested center motor through a fastener.
The brake in the upper assembly is a magnetic powder brake for braking the motor; the brake is a single magnetic powder brake or a plurality of magnetic powder brakes connected in series.
The sensor in the upper assembly is a force transducer and is used for collecting motor torsion signals so as to measure the torque of the upper assembly corresponding to the tested motor; the sensor in the lower assembly is a rotating speed torque meter and is used for collecting motor rotating speed signals and torsion signals so as to measure the whole rotating speed and the torque of the lower assembly corresponding to the tested motor.
The transmission mechanism is any one of a synchronous belt, a chain and a gear set.
The invention has the advantages and positive effects that:
in the electric vehicle motor performance test bed, the upper assembly and the lower assembly are respectively arranged corresponding to the positioning and mounting stations of the upper fixture and the lower fixture, and are connected through the transmission mechanism and run simultaneously, and the upper assembly and the lower assembly are respectively provided with the different sensors, so that the performance indexes of different types of motors can be measured through the electric vehicle motor performance test bed, the electric vehicle motor performance test bed achieves multiple purposes, saves the experimental equipment cost and the space cost of a user, and is convenient for testing.
Drawings
FIG. 1 is a schematic view of the structure of the electric vehicle motor performance test stand of the present invention when testing a hub motor;
FIG. 2 is a schematic view in the direction A of FIG. 1;
FIG. 3 is a schematic view of the structure of the motor performance test stand for an electric vehicle in testing a center motor;
FIG. 4 is a schematic view of a structure of an electric vehicle motor performance test stand of the present invention in which a plurality of magnetic powder brakes are provided;
fig. 5 is a partial enlarged view of a fixed position of a hub motor in the motor performance test stand of the electric vehicle of the present invention.
Reference numerals
1-bench main body mounting table 2-motor testing device component 3-tested motor mounting bracket 4-mounting plate 5-lower bearing seat 6-upper bearing seat
7-synchronous belt 8-magnetic powder brake 9-rotating speed torque meter
10-hub type motor 11-center pressing plate mechanism 12-middle motor
13-load cell 14-mounting hole 15-lower assembly
16-upper assembly 17-connecting device 18-press handle
Detailed Description
As shown in fig. 1 to 5, the electric vehicle motor performance test stand comprises a stand main body mounting stand 1, a tested motor mounting bracket 3 and a motor testing device assembly 2 which are arranged on the stand main body mounting stand 1, wherein the tested motor mounting bracket 3 is provided with an upper fixture positioning and mounting station and a lower fixture positioning and mounting station, the upper fixture positioning and mounting station is used for mounting a tested hub motor 10 with low rotation speed, the lower fixture positioning and mounting station is used for mounting a tested middle-set motor 12 with high rotation speed, and when the test stand is used for testing, single-station testing is adopted, and one of the two stations is used; the motor testing device assembly 2 comprises an upper assembly 16 and a lower assembly 15, wherein the upper assembly 16 comprises a brake and a sensor; the lower assembly 15 includes a sensor; the tested motor is correspondingly arranged on the same side of the upper component and the lower component, the rotor of the hub motor is connected with one end main shaft of the upper component 16, the output shaft of the central motor is connected with one end main shaft of the lower component 15, the other end main shafts of the upper component and the lower component are connected through the transmission of the synchronous belt 7, and the main shafts of the upper component and the lower component are driven by the synchronous belt to run simultaneously. The transmission mechanism can also adopt different transmission modes such as chain transmission or gear transmission. The main shafts of the upper and lower components can synchronously rotate, and can also synchronously rotate according to different transmission modes and a certain transmission ratio.
The upper assembly 16 and the lower assembly 15 in the motor testing device assembly 2 are vertically arranged; the two upper and lower bearing seats are vertically arranged on the rack main body mounting table 1 and are mutually parallel, the two upper and lower support bearings are respectively fixedly arranged on the bearing seats, the two end spindles of the upper assembly are respectively correspondingly arranged in the upper two support bearings, the two end spindles of the lower assembly are respectively arranged in the lower two support bearings, and the upper and lower assemblies are arranged between the two bearing seats. The bearing seat comprises an upper bearing seat 6 correspondingly arranged at the upper part and a lower bearing seat 5 correspondingly arranged at the lower part, and an upper assembly 16 and a lower assembly 15 are correspondingly supported and arranged in the bearing seat.
The two bearing seats are fixedly arranged on the mounting plate 4, and the mounting plate is adjustably and fixedly connected with the rack main body mounting table 1, so that the bearing seats are more accurately and conveniently fixed.
The upper fixture positioning and mounting station of the tested motor mounting bracket 3 is provided with a center pressing plate mechanism 11 which is used for coaxially positioning the center of the hub motor 10, the structure of the center pressing plate mechanism and the center positioning mode are known in the hub motor testing device in the prior art, and detailed structures are not repeated; the lower fixture positioning and mounting station of the tested motor mounting bracket 3 is provided with a mounting hole 14 which is connected with the middle motor 12 through a fastener.
The upper component 16 and the lower component 15 in the motor testing device component 2 use the same group of magnetic powder brakes 8, and when high-power braking is needed, a plurality of magnetic powder brakes 8 can be installed in series; a low power braking is required and only one magnetic particle brake 8 may be installed. In fig. 4 is shown the use of two magnetic particle brakes 8 mounted in series. The sensor arranged on the lower component 15 is a rotating speed torque meter 9 and is used for collecting motor rotating speed signals and torsion signals, and measuring the rotating speed and the torque of the middle motor corresponding to the lower component 15; the sensor installed on the upper assembly 16 adopts a force transducer 13 for motor torsion signal acquisition, and measures the output torque of the upper assembly 16 corresponding to the test hub type motor; the rotation speed of the upper assembly 16 is measured by the transmission ratio of the upper assembly and the lower assembly, and the rotation speed value of the rotation speed torque meter 9 in the lower assembly 15 is collected.
The invention relates to an electric vehicle motor performance test bed, which adopts a single machine test and comprises the following steps:
the hub motor 10 is tested: as shown in fig. 5, the hub motor 10 is positioned and installed by adopting a center, one end of an installation shaft in the middle of the hub motor is coaxially propped against by a rotating center, the rotating center is coaxial with a main shaft of the upper assembly 16, the other end of the installation shaft in the middle of the hub motor is coaxially propped against by a right center in a center pressing plate mechanism 11 of an upper fixture positioning and installing station of the tested motor installation bracket 3, the center installation shaft of the tested hub motor 10 is pressed by a pressing handle 18 in the center pressing plate mechanism, then the hub motor is fixed, and the upper assembly 16 of the motor testing device assembly 2 is connected with a hub rotor through a connecting device 17, so that the rotor of the hub motor and the main shaft of the upper assembly synchronously rotate. The connecting device is a universal connecting and fixing structure applied to the prior art when the hub motor is tested, and the tested motor mounting bracket 3 and the rack main body mounting table are fixed by adopting a fastener after the positions of the tested motor mounting bracket and the rack main body mounting table are adjusted. The running conditions of the wheels of the electric vehicle under different road conditions, resistances and speeds specified by the execution standard are braked by utilizing the magnetic powder brake 8, the rotating speed signal of the rotating speed and torque meter 9 and the torque signal of the force transducer 13 are collected, the conditions of the rotating speed and the torque are recorded, and relevant data such as the power of the electric vehicle are given.
Testing of the center motor 12: and installing the shell of the middle motor 12 and the mounting hole 14 of the lower fixture positioning and mounting station of the tested motor mounting bracket 3, and fastening and connecting by using a fastener. The output shaft of the central motor and the main shaft of the lower assembly 15 can be coaxially connected by adopting an elastic coupling, so that the main shaft of the central motor to be tested and the main shaft of the lower assembly synchronously rotate. In addition, according to factors such as the structural parameters of the motor to be tested or actual test requirements, a non-coaxial connection mode can be adopted between the output shaft of the central motor and the main shaft of the lower assembly, for example, the output shaft of the central motor and the main shaft of the lower assembly are connected through gear transmission. After the position of the tested motor mounting bracket 3 and the position of the rack main body mounting table 1 are adjusted, the tested motor mounting bracket is fixed by adopting a fastener. According to running conditions of wheels of the electric vehicle under different road conditions, resistances and speeds specified by the execution standard, a magnetic powder brake 8 is utilized to generate braking, a rotating speed signal and a torque signal of a rotating speed and torque sensor 9 are collected, corresponding rotating speed and torque conditions are recorded, and relevant data such as power of the electric vehicle are given.
The above description is only of the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any person skilled in the art will make some changes or modifications by using the disclosed technical content without departing from the scope of the technical solution of the present invention, and the equivalent embodiments of equivalent changes are all within the scope of the technical solution of the present invention, but any simple modification, equivalent changes and modifications made to the above embodiments according to the technical substance of the present invention are all within the scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides an electric motor car motor performance test bench, includes rack main part mount table, and the motor installing support and the motor testing arrangement subassembly that are surveyed that set up on the rack main part mount table, its characterized in that: the tested motor mounting bracket comprises an upper fixture positioning and mounting station and a lower fixture positioning and mounting station, wherein the upper fixture positioning and mounting station is used for testing the hub motor, the lower fixture positioning and mounting station is used for testing the middle-set motor, and when the test bed is used for testing, the upper fixture positioning and mounting station and the lower fixture positioning and mounting station are alternatively used; the motor testing device assembly comprises an upper assembly and a lower assembly, the upper assembly and the lower assembly respectively correspond to an upper fixture and a lower fixture of a tested motor mounting bracket to position and mount a station, and the upper assembly comprises a brake and a sensor; the lower assembly includes a sensor; the tested motor is correspondingly arranged on the same side of the upper assembly and the lower assembly, the tested motor drives the corresponding main shaft of the upper assembly or the lower assembly to rotate, and the main shafts of the upper assembly and the lower assembly are connected through a transmission mechanism in a transmission way and simultaneously run; the upper fixture positioning and mounting station is provided with a center pressing plate mechanism which is coaxially positioned with the center of the tested hub type motor; the lower fixture positioning and mounting station is provided with a mounting hole, and is connected with the tested center motor through a fastener; the brake in the upper assembly is a magnetic powder brake for braking the motor; the brake is a plurality of magnetic powder brakes connected in series.
2. The electric vehicle motor performance test stand of claim 1, wherein: the rotor of the hub motor is connected with one end of the main shaft of the upper assembly to drive the main shaft of the upper assembly to rotate, and the other end of the main shaft of the upper assembly is driven by the transmission mechanism to drive the main shaft of the lower assembly to simultaneously operate; or the output shaft of the middle motor is connected with one end of the main shaft of the lower assembly to drive the main shaft of the lower assembly to rotate, and the other end of the main shaft of the lower assembly drives the main shaft of the upper assembly to simultaneously operate through the transmission mechanism.
3. The electric vehicle motor performance test stand of claim 2, wherein: the upper assembly and the lower assembly are vertically arranged and are respectively arranged between a group of bearings; the two groups of bearings are respectively supported and fixed on two bearing seats which are integrally arranged at the upper part and the lower part.
4. The electric vehicle motor performance test stand of claim 3, wherein: the bearing seat is fixedly connected with the rack main body mounting table.
5. The electric vehicle motor performance test stand of claim 3, wherein: the rack main body mounting table is fixedly provided with a mounting plate, and the bearing seat is fixedly connected with the mounting plate.
6. The electric vehicle motor performance test stand of claim 1, wherein: the sensor in the upper assembly is a force transducer and is used for collecting motor torsion signals so as to measure the torque of the upper assembly corresponding to the tested motor; the sensor in the lower assembly is a rotating speed torque meter and is used for collecting motor rotating speed signals and torsion signals so as to measure the whole rotating speed and the torque of the lower assembly corresponding to the tested motor.
7. The electric vehicle motor performance test stand of any one of claims 1, 2, 3, 4, 5, or 6, wherein: the transmission mechanism is any one of a synchronous belt, a chain and a gear set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365667.6A CN109269699B (en) | 2018-11-16 | 2018-11-16 | Electric motor car motor performance test bench |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365667.6A CN109269699B (en) | 2018-11-16 | 2018-11-16 | Electric motor car motor performance test bench |
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| Publication Number | Publication Date |
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| CN109269699A CN109269699A (en) | 2019-01-25 |
| CN109269699B true CN109269699B (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811365667.6A Active CN109269699B (en) | 2018-11-16 | 2018-11-16 | Electric motor car motor performance test bench |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2621290Y (en) * | 2003-05-10 | 2004-06-23 | 清华大学 | Parallel mixed dynamic electric vehicle multi-energy power system stage testing mechanism |
| RU2353945C1 (en) * | 2007-09-19 | 2009-04-27 | ЗАО "Завод по ремонту электроподвижного состава" | Universal motor test unit |
| CN101915896B (en) * | 2010-07-16 | 2012-07-04 | 广西大学 | Testing device for mechanical property parameters of modularized permanent magnet synchronous servo motor |
| CN207114730U (en) * | 2017-09-05 | 2018-03-16 | 廊坊科森电器有限公司 | Generator and the dual-purpose test device of motor |
| CN207249065U (en) * | 2017-09-28 | 2018-04-17 | 八方电气(苏州)股份有限公司 | Electric bicycle hub motor experimental rig |
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2018
- 2018-11-16 CN CN201811365667.6A patent/CN109269699B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| 董铸荣等.纯电动汽车用直流无刷轮毂电机试验台架的研究与开发.《机电工程》.2012,第29卷(第29期),全文. * |
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