CN112525525A - Testing arrangement of coaxial-type electric drive axle gear box - Google Patents
Testing arrangement of coaxial-type electric drive axle gear box Download PDFInfo
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- CN112525525A CN112525525A CN202011368035.2A CN202011368035A CN112525525A CN 112525525 A CN112525525 A CN 112525525A CN 202011368035 A CN202011368035 A CN 202011368035A CN 112525525 A CN112525525 A CN 112525525A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/021—Gearings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The application provides a testing arrangement of coaxial-type electric drive axle gear box. The motor rotor shaft of the coaxial electric drive axle is transformed, the hollow rotor shaft is adopted, and the conveying device with the hollow output rotating shaft is used in the testing device, so that the input motor and the load motor can be positioned on different axes, the mechanical interference of the input motor and the load motor is avoided, and the performance of the coaxial electric drive axle gear box is effectively tested.
Description
Technical Field
The application relates to the field of automobile performance testing, in particular to a testing device for a coaxial electric drive axle gear box.
Background
In recent years, with the development of new energy automobile technical routes, two-in-one or three-in-one electric drive axles are increasingly applied.
The testing of the gear box of the electric drive axle is an important ring for automobile performance detection, however, because the motor and the gear box of the two-in-one or three-in-one electric drive axle are deeply integrated, the testing of the gear box of the electric drive axle alone becomes a technical difficulty, especially the loading testing of the gear box of the coaxial electric drive assembly axle is particularly difficult, and an effective testing solution is not found in the industry at present.
Therefore, the design of the testing device suitable for the coaxial electric drive axle gear box has important significance for performance detection of the new energy automobile.
Disclosure of Invention
The application provides a testing arrangement of coaxial-type electric drive axle gear box can solve the problem that can't effectively test coaxial-type electric drive axle gear box's performance among the prior art.
The application provides a testing device for a coaxial electric drive axle gear box, the coaxial electric drive axle comprises a motor and a gear box to be tested which are integrated together, and is characterized in that,
the motor is provided with a hollow rotor shaft, and the hollow rotor shaft is connected with an input shaft of the gear box to be tested; the gear box to be tested is provided with a first drive axle half shaft and a second drive axle half shaft which are coaxial with the hollow rotor shaft;
the testing device comprises a conveying device, the conveying device comprises an input rotating shaft and a hollow output rotating shaft, the input rotating shaft is connected with an input motor, the hollow output rotating shaft is coaxial and connected with the hollow rotor shaft, and the mechanical energy of the input motor is conveyed to the hollow rotor shaft through the conveying device;
the first drive axle half shaft is connected with a first load motor; the second drive axle half shaft penetrates through the hollow rotor shaft and the hollow space inside the hollow output rotating shaft and is connected with a second load motor.
Preferably, the gearbox under test comprises an integrated retarder and differential.
Preferably, the input motor, the first load motor or the second load motor is a dynamometer.
Preferably, the second load motor is connected with the second drive axle half shaft through a transmission shaft.
Preferably, the hollow rotor shaft and the hollow output rotating shaft are connected through a hollow coupling.
Preferably, a torque sensor is disposed at one side of each of the first and second load motors.
Preferably, a hollow torque sensor is disposed between the hollow rotor shaft and the hollow output rotating shaft, or a torque sensor is disposed at one side of the input motor.
Preferably, the transmission means employs a friction or meshing transmission.
Preferably, the transmission is a parallel axis gearbox or a vertical axis gearbox.
Preferably, the transfer device comprises:
a gearbox body;
the input gear and the output gear are positioned in the gearbox body and are in transmission connection;
a first bearing member provided on the gear case body for supporting the input rotary shaft;
a second bearing member provided on the gear case body for supporting the hollow output rotary shaft;
a third bearing member disposed on the gearbox housing for supporting a second drive axle half shaft passing through the hollow output rotary shaft.
Preferably, the transfer device further comprises: the input flange is positioned at the end part of the input rotating shaft and is used for being connected with the input motor; and the output flange is positioned at the end part of the hollow output rotating shaft and is used for being connected with the hollow rotor shaft.
The application has the following beneficial effects: the motor rotor shaft of the coaxial electric drive axle is transformed, the hollow rotor shaft is adopted, and the conveying device with the hollow output rotating shaft is used in the testing device, so that an input motor providing testing kinetic energy for the gear box to be tested can be positioned on different axial lines with a load motor of the gear box to be tested, mechanical interference of the input motor and the load motor is avoided, and the performance of the gear box of the coaxial electric drive axle is tested effectively.
Drawings
Certain specific embodiments of the present application will hereinafter be described in detail by way of example and not limitation with reference to the accompanying drawings, in which like reference numerals identify the same or similar parts or features, and it will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic structural diagram of a testing apparatus according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a conveying device in an embodiment of the present application.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in many ways different from those described herein, and similar modifications may be made by those skilled in the art without departing from the spirit of the present application, and the present application is therefore not limited to the specific implementations disclosed below.
In the description of the present application, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; the two can be directly connected or connected through other connecting parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present application, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "above," "below," and "above" a second feature includes the first feature being directly below and obliquely below the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
In the description of the present application, the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of operation, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and not for purposes of special definition.
As shown in fig. 1 and 2, fig. 1 is a schematic structural diagram of a testing device 10 for a coaxial electric drive axle gearbox in the present application. The test object is a gearbox of the coaxial electric drive axle 11 in the figure, specifically, the coaxial electric drive axle 11 includes an electric motor 114 and a gearbox 112 to be tested which are integrated together, the electric motor 114 has a hollow rotor shaft 1141, the hollow rotor shaft 1141 is connected with an input shaft of the gearbox 112 to be tested, and the gearbox 112 to be tested has a first drive axle half shaft 116 and a second drive axle half shaft 118 which are coaxial with the hollow rotor shaft 1141. The testing device 10 comprises a transmission device 12, as can be seen in fig. 2, the transmission device 12 is provided with an input rotating shaft 121 and a hollow output rotating shaft 123, one end of the input rotating shaft 121 is connected with an input motor 13, the hollow output rotating shaft 123 is coaxial with and connected with a hollow rotor shaft 1141, and the mechanical energy of the input motor 13 is transmitted to the hollow rotor shaft 1141 through the transmission device 12; the first drive axle half shaft 116 of the gear box 112 to be tested is connected with the first load motor 141, and the second drive axle half shaft 118 passes through the hollow rotor shaft 1141 and the hollow space inside the hollow output rotating shaft 123, and is further connected with the second load motor 142.
In the testing device 10, the input motor 13 generates mechanical energy, the mechanical energy is transmitted to the hollow rotor shaft 1141 of the motor 114 through the input rotating shaft 121, the hollow output rotating shaft 123, and the like of the transmission device 12, and the hollow rotor shaft 1141 drives the input shaft of the gear box 112 to be tested to rotate after rotating, so as to finally drive the first drive axle half shaft 116 and the second drive axle half shaft 118 to rotate. In the above-mentioned testing device 10, the hollow rotor shaft 1141 of the motor 114 only serves to connect the hollow output rotating shaft 123 of the transmission device 12 with the input shaft of the gear box 112 to be tested, so as to transmit the mechanical energy input to the motor 13 to the input shaft of the gear box 112 to be tested, and in order to reduce the mechanical interference of other components of the motor 114 with the hollow rotor shaft 1141, part of the components of the motor 114 can be removed during the actual testing process. The total output power of the coaxial electric drive axle 11 can be calculated by measuring the rotating speed and the torque of the first drive axle half shaft 116 and the second drive axle half shaft 118, and the transmission efficiency of the gear box of the coaxial electric drive axle 11 to be measured can be obtained according to the input power input to the coaxial electric drive axle 11 by the input motor 13.
In this embodiment, the second axle shaft 118 passes through the hollow rotor shaft 1141 and the hollow output rotation shaft 123 of the transmission device 12, and is connected to the second load motor 142, so as to avoid the mechanical interference between the input motor 13 and the second load motor 142, and the testing device 10 can solve the problem that the performance of the coaxial electric drive axle gearbox is not easy to test.
The gearbox 112 under test may be a reduction gear 1122 and a differential 1121 integrated together, and a gear transmission is preferably adopted between the reduction gear 1122 and the differential 1121. Of course, additional transmission components such as a multi-speed transmission mechanism and the like may be provided between reduction gear 1122 and differential 1121.
In this embodiment, the input motor 13, the first load motor 141, or the second load motor 142 may be a dynamometer, and the dynamometer may be selected from an eddy current dynamometer, a direct current dynamometer, or an alternating current dynamometer.
Continuing with FIG. 1, the exposed length of the second drive axle half shaft 118 after it has passed through the hollow output rotary shaft 123 of the conveyor 12 may be relatively short, and the drive shaft 16 may be added to facilitate connection between the second load motor 142 and the second drive axle half shaft 118, thereby better addressing the problem of insufficient length of the second drive axle half shaft 118. Specifically, the propeller shaft 16 and the second drive axle half shaft 118 may be connected by a flange 152.
Continuing with fig. 1, a hollow rotor shaft 1141 may be coupled to the hollow output rotating shaft 123 of the transfer device 12 via a hollow coupling 151. Thus, second drive axle half shaft 118 passes through the interior hollow spaces of hollow rotor shaft 114, hollow coupling 151, and hollow output rotary shaft 123, in that order. A coupling 153 may be provided between the input motor 13 and the input rotary shaft 121 of the transmission device 12.
In order to obtain the relevant parameters, a plurality of torque sensors may be provided when the testing device 10 employs an input motor and/or a load motor without parameter measurement functionality. For example, the torque sensor 171 is disposed between the input motor 13 and the input rotary shaft 121 of the transmission device 12, and the power input to the transmission device 12 from the input motor 13 can be determined according to the magnitude of the torque sensor 171 and the rotation speed of the input motor 13, and the power input to the coaxial electric drive axle 11 can be determined according to the transmission efficiency of the transmission device 12. Alternatively, a hollow torque sensor may be provided between the hollow rotor shaft 1141 and the hollow output rotary shaft 123 to obtain the input torque, and the power input to the coaxial electric drive axle 11 may be determined by estimating the rotation speed of the hollow rotor shaft 1141 from the rotation speed of the input rotary shaft 121, or by directly providing a rotation speed measuring element between the hollow rotor shaft 1141 and the hollow output rotary shaft 123.
A torque sensor 172 is provided between the first transaxle half-shaft 116 and the first load motor 141, and a torque sensor 173 is provided between the second transaxle half-shaft 118 and the second load motor 142 to obtain the output torque of the two half-shafts, and then the total output power of the coaxial electric drive axle 11 can be determined by combining the rotation speeds of the first load motor 141 and the second load motor 142.
The torque sensor 171, the torque sensor 172, and the torque sensor 173 may each be independently selected from a strain gauge non-contact sensor, a magneto-electric torque sensor, a fiber optic torque sensor, an electro-optical torque sensor, a strain gage torque sensor, and the like.
In this embodiment, the transmission device 12 may adopt a friction transmission or an engagement transmission. Friction drives include, but are not limited to, friction wheel drives, belt drives, rope drives, and the like; meshing drives include, but are not limited to, gear drives, chain drives, worm and gear drives, and the like. Specifically, the transmission 12 may be a gearbox, a parallel axis gearbox, or a vertical axis gearbox.
Continuing to refer to FIG. 2, the transmission 12 is a parallel axis gearbox. The transfer device 12 includes: a gearbox housing 124; an input gear 125 and an output gear 126 in driving connection inside the gearbox housing 124; a first bearing member 127 provided on the gear case 124 for supporting the input rotary shaft 121; a second bearing member 128 provided on the gearbox housing 124 for supporting the hollow output rotary shaft 123; a third bearing assembly 129 is provided on the gearbox housing 124 for supporting the second drive axle half shaft 118 through the hollow output rotary shaft 123.
In addition, to facilitate the connection, the transfer device 12 may further include: an input flange 1211 positioned at an end of the input rotation shaft 121 for connecting with the input motor 13; an output flange 1231, located at the end of the hollow output rotating shaft 123, is used to connect with the hollow rotor shaft 1141.
In addition, the testing device 10 may further include a base for fixing various components in the testing device 10, a locking component, and the like, for example, the input motor 13, the first load motor 141, the second load motor 142, and the like are fixed on the base through the locking component, so as to ensure stable operation of the whole testing device.
In this embodiment, when an operator tests the gearbox 112 to be tested of the coaxial electric drive axle 11, the following steps may be adopted: after the components in the testing device 10 are installed, the input motor 13 is started, the first drive axle half shaft 116 and the second drive axle half shaft 118 are subjected to a loading test by using the first load motor 141 and the second load motor 142, and after relevant signal data of each torque sensor is read, the power input to the coaxial electric drive axle 11 by the input motor 13 and the total power output to the first load motor 141 and the second load motor by the coaxial electric drive axle 11 can be determined according to the rotating speeds of the input motor 13, the first load motor 141 and the second load motor 142, so that the transmission efficiency of the gear box to be tested of the coaxial electric drive axle 11 can be obtained, and the performance of the gear box to be tested 112 of the coaxial electric drive axle 11 to be tested can be tested.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the present application have been illustrated and described in detail herein, many other variations and modifications consistent with the principles of the application may be ascertained or derived directly from the disclosure herein without departing from the spirit and scope of the application. Accordingly, the scope of the present application should be understood and interpreted to cover all such other variations or modifications.
Claims (11)
1. A testing device for a coaxial electric drive axle gear box, wherein the coaxial electric drive axle comprises a motor and a gear box to be tested which are integrated together,
the motor is provided with a hollow rotor shaft, and the hollow rotor shaft is connected with an input shaft of the gear box to be tested; the gear box to be tested is provided with a first drive axle half shaft and a second drive axle half shaft which are coaxial with the hollow rotor shaft;
the testing device comprises a conveying device, the conveying device comprises an input rotating shaft and a hollow output rotating shaft, the input rotating shaft is connected with an input motor, the hollow output rotating shaft is coaxial and connected with the hollow rotor shaft, and the mechanical energy of the input motor is conveyed to the hollow rotor shaft through the conveying device;
the first drive axle half shaft is connected with a first load motor; the second drive axle half shaft penetrates through the hollow rotor shaft and the hollow space inside the hollow output rotating shaft and is connected with a second load motor.
2. The test device of claim 1, wherein the gearbox under test includes an integrated speed reducer and differential.
3. The test device of claim 1 or 2, wherein the input motor, first load motor, or second load motor is a dynamometer.
4. The test device of claim 1 or 2, wherein the second load motor is connected to the second drive axle half shaft by a drive shaft.
5. The testing device of claim 1 or 2, wherein the hollow rotor shaft and the hollow output rotating shaft are connected by a hollow coupling.
6. A test device according to claim 1 or 2, wherein one side of the first load motor and one side of the second load motor are each provided with a torque sensor.
7. The testing device of claim 6, wherein a hollow torque sensor is provided between the hollow rotor shaft and the hollow output rotating shaft or a torque sensor is provided at one side of the input motor.
8. A test device as claimed in claim 1 or 2, wherein the transport device employs a friction drive or an engagement drive.
9. The testing device of claim 8, wherein the conveyor is a parallel axis gearbox or a vertical axis gearbox.
10. The testing device of claim 9, wherein the conveying device comprises:
a gearbox body;
the input gear and the output gear are positioned in the gearbox body and are in transmission connection;
a first bearing member provided on the gear case body for supporting the input rotary shaft;
a second bearing member provided on the gear case body for supporting the hollow output rotary shaft;
a third bearing member disposed on the gearbox housing for supporting a second drive axle half shaft passing through the hollow output rotary shaft.
11. The testing device of claim 10, wherein the conveyor further comprises: the input flange is positioned at the end part of the input rotating shaft and is used for being connected with the input motor; and the output flange is positioned at the end part of the hollow output rotating shaft and is used for being connected with the hollow rotor shaft.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011368035.2A CN112525525B (en) | 2020-11-27 | 2020-11-27 | Testing arrangement of coaxial-type electric drive axle gear box |
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| CN202011368035.2A CN112525525B (en) | 2020-11-27 | 2020-11-27 | Testing arrangement of coaxial-type electric drive axle gear box |
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| CN112525525A true CN112525525A (en) | 2021-03-19 |
| CN112525525B CN112525525B (en) | 2022-03-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116754197A (en) * | 2023-06-13 | 2023-09-15 | 小米汽车科技有限公司 | Motor rotor's test system |
| CN117191385A (en) * | 2023-09-27 | 2023-12-08 | 重庆凯测试验设备股份有限公司 | Coaxial double-motor-based wind power gear box testing method |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0338373A2 (en) * | 1988-04-16 | 1989-10-25 | Asea Brown Boveri Aktiengesellschaft | Test bench for testing the transmission belt of an automobile |
| AU1628195A (en) * | 1994-04-11 | 1995-10-19 | Voest-Alpine Bergtechnik Gesellschaft Mbh | Gearbox with coaxial drive and driven shafts |
| GB0015086D0 (en) * | 1997-12-23 | 2000-08-09 | Luk Lamellen & Kupplungsbau | Gear box |
| EP1840551A2 (en) * | 2006-03-31 | 2007-10-03 | Geo. Kingsbury Machine Tools Limited | Testing components of drive trains |
| US20090248252A1 (en) * | 2008-03-26 | 2009-10-01 | Audi Ag | Method for Monitoring the Operating Conditions of Motor Vehicles |
| CN101666610A (en) * | 2008-09-06 | 2010-03-10 | 辽宁曙光汽车集团股份有限公司 | System and method for measuring and selecting differential bearing gasket of divided steering drive axle assembly |
| CN102507166A (en) * | 2011-10-17 | 2012-06-20 | 西南石油大学 | Bilaterally-charging high-pressure dynamic-seal test bed and test method |
| CN203267762U (en) * | 2013-05-28 | 2013-11-06 | 中国汽车技术研究中心 | single-planet row automotive hybrid power assembly |
| CN205027541U (en) * | 2015-09-29 | 2016-02-10 | 合肥力宏科技有限责任公司 | Closed car transaxle load test platform device |
| WO2016174202A1 (en) * | 2015-04-30 | 2016-11-03 | Carraro S.P.A. | A gearbox for agricultural and industrial vehicles |
| CN106568601A (en) * | 2016-06-01 | 2017-04-19 | 襄阳达安汽车检测中心 | Middle axle testbed |
| WO2018121515A1 (en) * | 2016-12-26 | 2018-07-05 | 苏州绿控传动科技有限公司 | Electric drive axle |
| CN109434426A (en) * | 2018-12-14 | 2019-03-08 | 江苏海事职业技术学院 | A kind of steering engine gear shaft quick press mounting equipment |
| CN109927485A (en) * | 2019-04-01 | 2019-06-25 | 广州市新域动力技术有限公司 | Pure electric vehicle parallel axes dual-range axle |
| CN110296835A (en) * | 2019-07-30 | 2019-10-01 | 苏州英特模汽车科技有限公司 | The high-performance of electric drive axle power assembly is to dragging test macro and its test method |
| CN110361191A (en) * | 2019-07-30 | 2019-10-22 | 苏州英特模汽车科技有限公司 | A kind of efficient test macro and its test method of electric drive axle power assembly |
| CN110411743A (en) * | 2019-09-11 | 2019-11-05 | 山西省平遥减速器有限责任公司 | Ultra-large type epicyclic gearbox mechanical output totally enclosed type testing stand |
| CN210136071U (en) * | 2019-07-30 | 2020-03-10 | 苏州英特模汽车科技有限公司 | High-efficiency test system for power assembly of electric drive axle |
| EP3683562A1 (en) * | 2017-09-15 | 2020-07-22 | Toyo Denki Seizo Kabushiki Kaisha | Load motor for chassis dynamo device |
| CN111855197A (en) * | 2020-07-22 | 2020-10-30 | 武汉理工通宇新源动力有限公司 | Test bed for testing electric drive axle assembly |
-
2020
- 2020-11-27 CN CN202011368035.2A patent/CN112525525B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0338373A2 (en) * | 1988-04-16 | 1989-10-25 | Asea Brown Boveri Aktiengesellschaft | Test bench for testing the transmission belt of an automobile |
| AU1628195A (en) * | 1994-04-11 | 1995-10-19 | Voest-Alpine Bergtechnik Gesellschaft Mbh | Gearbox with coaxial drive and driven shafts |
| GB0015086D0 (en) * | 1997-12-23 | 2000-08-09 | Luk Lamellen & Kupplungsbau | Gear box |
| EP1840551A2 (en) * | 2006-03-31 | 2007-10-03 | Geo. Kingsbury Machine Tools Limited | Testing components of drive trains |
| US20090248252A1 (en) * | 2008-03-26 | 2009-10-01 | Audi Ag | Method for Monitoring the Operating Conditions of Motor Vehicles |
| CN101666610A (en) * | 2008-09-06 | 2010-03-10 | 辽宁曙光汽车集团股份有限公司 | System and method for measuring and selecting differential bearing gasket of divided steering drive axle assembly |
| CN102507166A (en) * | 2011-10-17 | 2012-06-20 | 西南石油大学 | Bilaterally-charging high-pressure dynamic-seal test bed and test method |
| CN203267762U (en) * | 2013-05-28 | 2013-11-06 | 中国汽车技术研究中心 | single-planet row automotive hybrid power assembly |
| WO2016174202A1 (en) * | 2015-04-30 | 2016-11-03 | Carraro S.P.A. | A gearbox for agricultural and industrial vehicles |
| CN205027541U (en) * | 2015-09-29 | 2016-02-10 | 合肥力宏科技有限责任公司 | Closed car transaxle load test platform device |
| CN106568601A (en) * | 2016-06-01 | 2017-04-19 | 襄阳达安汽车检测中心 | Middle axle testbed |
| WO2018121515A1 (en) * | 2016-12-26 | 2018-07-05 | 苏州绿控传动科技有限公司 | Electric drive axle |
| EP3683562A1 (en) * | 2017-09-15 | 2020-07-22 | Toyo Denki Seizo Kabushiki Kaisha | Load motor for chassis dynamo device |
| CN109434426A (en) * | 2018-12-14 | 2019-03-08 | 江苏海事职业技术学院 | A kind of steering engine gear shaft quick press mounting equipment |
| CN109927485A (en) * | 2019-04-01 | 2019-06-25 | 广州市新域动力技术有限公司 | Pure electric vehicle parallel axes dual-range axle |
| CN110296835A (en) * | 2019-07-30 | 2019-10-01 | 苏州英特模汽车科技有限公司 | The high-performance of electric drive axle power assembly is to dragging test macro and its test method |
| CN110361191A (en) * | 2019-07-30 | 2019-10-22 | 苏州英特模汽车科技有限公司 | A kind of efficient test macro and its test method of electric drive axle power assembly |
| CN210136071U (en) * | 2019-07-30 | 2020-03-10 | 苏州英特模汽车科技有限公司 | High-efficiency test system for power assembly of electric drive axle |
| CN110411743A (en) * | 2019-09-11 | 2019-11-05 | 山西省平遥减速器有限责任公司 | Ultra-large type epicyclic gearbox mechanical output totally enclosed type testing stand |
| CN111855197A (en) * | 2020-07-22 | 2020-10-30 | 武汉理工通宇新源动力有限公司 | Test bed for testing electric drive axle assembly |
Non-Patent Citations (2)
| Title |
|---|
| M DUB, J KOLA: ""Axle Gearbox Hinge Response during Dynamic Testing"", 《FIRST INTERNATIONAL CONFERENCE ON RAIL TRANSPORTATION 2017》 * |
| 占锐 等: ""轻型商用车集成式电驱动桥试验台及方法研究"", 《机械传动》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116754197A (en) * | 2023-06-13 | 2023-09-15 | 小米汽车科技有限公司 | Motor rotor's test system |
| CN117191385A (en) * | 2023-09-27 | 2023-12-08 | 重庆凯测试验设备股份有限公司 | Coaxial double-motor-based wind power gear box testing method |
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| CN112525525B (en) | 2022-03-11 |
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