CN211504662U - Flexible test bench of new energy automobile gear box - Google Patents
Flexible test bench of new energy automobile gear box Download PDFInfo
- Publication number
- CN211504662U CN211504662U CN202020184051.5U CN202020184051U CN211504662U CN 211504662 U CN211504662 U CN 211504662U CN 202020184051 U CN202020184051 U CN 202020184051U CN 211504662 U CN211504662 U CN 211504662U
- Authority
- CN
- China
- Prior art keywords
- installation
- plate
- gear box
- motor
- shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model discloses a flexible test bench of new energy automobile gear box, including the installation base, the gear box mount table, load motor and observing and controlling system, the gear box mount table is equipped with a load motor respectively through the gear box installation chassis swing joint of its bottom on the installation base in the both sides of gear box mount table, and the motor installation chassis swing joint of load motor through its bottom is on the installation base, is equipped with a position control device respectively in the outside of two motor installation chassis, is equipped with a torque speed sensor respectively at the motor axle head of load motor. The test bench is simple in structure, convenient and fast in installation and test process, and can realize installation and test of gear boxes with different sizes as soon as possible due to the flexible quick-mounting part; the device can be used for measuring the transmission efficiency of the gearbox under different input torques, input rotating speeds and certain oil temperatures, and has guiding significance for judging the technical level of a gearbox supplier and optimizing the design of the gearbox.
Description
Technical Field
The utility model relates to a testing arrangement technical field, concretely relates to flexible test bench of new energy automobile gear box.
Background
An automotive gear box is one of the main components of an automotive transmission system, and in order to adapt to frequently changing driving conditions, such as starting, idling stop, low-speed or high-speed driving, acceleration, deceleration, climbing, backing and the like, and simultaneously enable an engine to work under favorable working conditions (high power and low oil consumption), the driving force and the speed of an automobile are required to be changed within a considerable range, so that a gear transmission is arranged in the transmission system.
Since the year of the traditional Chinese electric automobile in 2009, the traditional Chinese electric automobile is developed at a high speed for 10 years, and China now becomes the largest new energy automobile producing country in the world and has the largest new energy automobile sales market. In order to meet the market demand, automobile manufacturers are required to continuously shorten the development period of the whole automobile, so that key components on the new energy automobile need to be tested as early as possible on a related test bed instead of being realized by an actual automobile prototype. For a vehicle enterprise, available components must be tested as quickly as possible to improve their durability and functionality. However, since the design data of different models of vehicles are different, the corresponding test bench of the gear box is required to be adapted to the test of components with different dimensions by changing as little as possible.
SUMMERY OF THE UTILITY MODEL
In order to solve the not enough of existence among the prior art, the utility model provides a new energy automobile gear box flexibility test rack, simple structure, the installation test flow is convenient, the installation test of the gear box of adaptable different dimension specification.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a flexible test bench of new energy automobile gear box, including the installation base, the gear box mount table, load motor and system of observing and controling, the gear box mount table is through the gear box installation chassis swing joint of its bottom on the installation base, both sides at the gear box mount table are equipped with a load motor respectively, the load motor is through the motor installation chassis swing joint of its bottom on the installation base, be equipped with a position control device respectively in the outside of two motor installation chassis, motor shaft end at load motor is equipped with a torque speed sensor respectively.
A plurality of T-shaped sliding chutes extending along the length direction of the mounting bottom plate are arranged on the upper surface of the mounting bottom plate at equal intervals; the bottom surface of the gear box installation underframe and the bottom surface of the motor installation underframe are respectively provided with a T-shaped sliding block which is matched with the T-shaped sliding groove at the position corresponding to the T-shaped sliding groove, and the T-shaped sliding blocks at the bottoms of the gear box installation underframe and the motor installation underframe are respectively connected with the corresponding T-shaped sliding grooves and can slide along the T-shaped sliding grooves.
The gearbox mounting table comprises a T-shaped groove bottom plate, a movable end support, a driving motor end support, a fixed end support, a protective cover, a first quick-assembly plate, a second quick-assembly plate and a third quick-assembly plate, the T-shaped groove bottom plate is fixedly connected to a gearbox mounting underframe, the driving motor end support and the movable end support are respectively connected to the front end and the rear end of the T-shaped groove bottom plate in a sliding mode, the fixed end support is fixedly connected to the right end of the T-shaped groove bottom plate, the first quick-assembly plate is detachably and fixedly connected to the inner side face of the fixed end support, the second quick-assembly plate is detachably and fixedly connected to the movable; the protective cover installation adjusting plate is arranged between the end support and the fixed end support of the driving motor, the protective cover installation adjusting plate can be connected to the front end of the bottom plate of the T-shaped groove in a sliding mode, a connection extending edge is arranged at the front end and the bottom of the rear end of the protective cover respectively, the right end of the connection extending edge is fixedly connected with the bottom of the fixed end support, the left side of the connection extending edge of the front end is adjustably connected with the protective cover installation adjusting plate through a position adjusting groove formed in the left side of the connection extending edge of the front end, and the left side of the connection extending edge of the.
The front end and the rear end of the top surface of the T-shaped groove bottom plate are respectively provided with a plurality of T-shaped sliding grooves II extending along the length direction of the T-shaped sliding grooves II, the bottom of the movable end support is fixedly connected to the mounting adjusting plate I, the bottom of the driving motor end support is fixedly connected to the mounting adjusting plate II, T-shaped sliding blocks II matched with the mounting adjusting plate I and the mounting adjusting plate II are arranged at positions corresponding to the T-shaped sliding grooves II on the corresponding side, the mounting adjusting plate I and the mounting adjusting plate II are respectively connected with the T-shaped sliding grooves II on the corresponding side through the T-shaped sliding blocks II on the respective bottoms and can slide along the T-shaped sliding grooves II, and the mounting adjusting plate I and the mounting adjusting plate II are pushed into the corresponding T-shaped sliding.
A T-shaped sliding block II is arranged at the position, corresponding to the T-shaped sliding groove II at the front end of the T-shaped groove bottom plate, of the bottom of the protective cover installation adjusting plate, the protective cover installation adjusting plate is connected with the T-shaped sliding groove II at the corresponding side through the T-shaped sliding block II at the bottom of the protective cover installation adjusting plate and can slide along the T-shaped sliding groove II, and the protective cover installation adjusting plate is jacked into the corresponding T-shaped sliding groove II through a limiting bolt to be fixed in position after being positioned by; the first-choice spacing bolt of outside end on the safety cover installation regulating plate passes the position control groove on the connection flange of safety cover front end and inserts again and accomplish the rigidity of safety cover installation regulating plate and the installation of safety cover in the corresponding T type spout two, and the first-choice spacing bolt of installation regulating plate outside end passes the position control groove on the connection flange of safety cover rear end and inserts again and accomplish the rigidity of installation regulating plate one and the installation of safety cover in the corresponding T type spout two.
The position adjusting device comprises an adjusting screw, a screw limiting shell and an adjusting knob, the bottom of the screw limiting shell is fixedly connected with the mounting base in a detachable mode, a screw nut is arranged in the screw limiting shell, the inner side end of the adjusting screw penetrates through the screw nut and then is fixedly connected with a motor mounting base frame on one corresponding side, and the adjusting knob is connected to the outer side end of the adjusting screw.
The utility model has the advantages that:
1. the utility model discloses a new energy automobile gear box flexible test rack which has simple structure and convenient installation and test process, and can realize the installation and test of gear boxes with different sizes as soon as possible by attaching a flexible quick-mounting part;
2. the device can be used for measuring the transmission efficiency of the gearbox under different input torques, input rotating speeds and certain oil temperatures; on the premise of not confirming the maturity of the gear reducer of the new energy automobile, the transmission combination of any electric automobile type can be effectively evaluated, an expensive and difficult-to-realize prototype vehicle is not needed, an analysis report is generated through data analysis of measurement and control software, and the method has guiding significance for judging the technical level of a gearbox supplier and optimizing the design of the gearbox;
3. the test data is monitored in real time by using the measurement and control software and is sent to the computer for analysis, so that an analysis chart is formed, and the accuracy is high.
Drawings
FIG. 1 is an axonometric view of the overall structure of a flexible test bench of a new energy automobile gearbox;
FIG. 2 is a schematic front view of a flexible test bench of the new energy automobile gearbox shown in FIG. 1;
FIG. 3 is a schematic front view of a load motor;
FIG. 4 is a left side schematic view of a gearbox mounting table;
FIG. 5 is an isometric view of a gearbox mount;
FIG. 6 is an isometric view of a gearbox mounted to a gearbox mounting block;
FIG. 7 is an isometric view of a gearbox mounted to a gearbox mounting block;
FIG. 8 is a testing principle diagram of a flexible testing rack of a new energy automobile gearbox.
The method comprises the following steps of 1-installing a base, 2-installing a gear box platform, 3-loading a motor, 4-installing a gear box underframe, 5-installing a motor underframe, 6-adjusting a position, 7-a torque and rotating speed sensor and 8-a limiting bolt;
11-T type chute;
21-T-shaped groove bottom plate, 22-movable end support, 23-driving motor end support, 24-fixed end support, 25-protective cover, 26-fast mounting plate I, 27-fast mounting plate II, 28-fast mounting plate III, 29-protective cover mounting adjusting plate;
211-T type chute II;
221-installing a first adjusting plate;
231-installing a second adjusting plate;
251-connecting extension edge, 252-position adjusting groove;
61-adjusting screw rod, 62-screw rod limiting shell and 63-adjusting knob.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
In order to improve testing arrangement's suitability, in order to carry out the flexibility test to the gear box of different specifications, this embodiment discloses a new energy automobile gear box flexibility test rack, including installation base 1, gear box mount table 2, load motor 3 and observing and controlling system, gear box mount table 2 is through 4 swing joint of gear box installation chassis 4 of its bottom on installation base 1, be equipped with a load motor 3 respectively in the both sides of gear box mount table 2, load motor 3 is through 5 swing joint of the motor installation chassis 5 of its bottom on installation base 1, be equipped with a position control device 6 respectively in the outside of two motor installation chassis 5, be equipped with a torque speed sensor 7 respectively at the motor shaft end of load motor 3.
A plurality of T-shaped sliding grooves 11 extending along the length direction are arranged on the upper surface of the mounting bottom plate 1 at equal intervals; t-shaped sliding blocks matched with the T-shaped sliding grooves 11 are respectively arranged on the bottom surface of the gear box installation underframe 4 and the bottom surface of the motor installation underframe 5 at positions corresponding to the T-shaped sliding grooves 11, and the T-shaped sliding blocks at the bottoms of the gear box installation underframe 4 and the motor installation underframe 5 are respectively connected with and can slide along the corresponding T-shaped sliding grooves.
The gearbox mounting table 2 comprises a T-shaped groove bottom plate 21, a movable end support 22, a driving motor end support 23, a fixed end support 24, a protective cover 25, a first quick-assembly plate 26, a second quick-assembly plate 27 and a third quick-assembly plate 28, the T-shaped groove bottom plate 21 is fixedly connected to the gearbox mounting underframe 4, the driving motor end support 23 and the movable end support 22 are respectively slidably connected to the front end and the rear end of the T-shaped groove bottom plate 21, the fixed end support 24 is fixedly connected to the right end of the T-shaped groove bottom plate 1, the first quick-assembly plate 26 is detachably and fixedly connected to the inner side face of the fixed end support 24, the second quick-assembly plate 27 is detachably and fixedly connected to the movable end support 22, and the third; a protective cover installation adjusting plate 29 is arranged between the end support 23 of the driving motor and the fixed end support 24, the protective cover installation adjusting plate 29 is connected to the front end of the T-shaped groove bottom plate 21 in a sliding mode, connecting extending edges 251 are arranged at the bottom of the front end and the bottom of the rear end of the protective cover 25 respectively, the right end of each connecting extending edge 251 is fixedly connected with the bottom of the fixed end support 24, the left side of each connecting extending edge 251 at the front end is connected with the protective cover installation adjusting plate 29 in an adjustable mode through a position adjusting groove 252 formed in the left side of the connecting extending edge 251 at the rear end, and the left side of each connecting extending edge 251 at.
The front end and the rear end of the top surface of the T-shaped groove bottom plate 21 are respectively provided with a plurality of T-shaped sliding grooves two 211 extending along the length direction of the T-shaped groove bottom plate, the bottom of the movable end support 22 is fixedly connected to the mounting adjusting plate one 221, the bottom of the driving motor end support 23 is fixedly connected to the mounting adjusting plate two 231, T-shaped sliding blocks two matched with the mounting adjusting plate one 221 and the mounting adjusting plate two 231 are arranged at positions corresponding to the T-shaped sliding grooves two 211 on the corresponding side, the mounting adjusting plate one 221 and the mounting adjusting plate two 231 are respectively connected with the T-shaped sliding grooves two 211 on the corresponding side through the T-shaped sliding blocks two at the bottoms of the mounting adjusting plate one 221 and the mounting adjusting plate two 231 and can slide along the T-shaped sliding grooves two 211, and the mounting adjusting plate one 221 and the mounting adjusting.
A T-shaped sliding block II is arranged at the position, corresponding to the T-shaped sliding groove II 211 at the front end of the T-shaped groove bottom plate 21, of the bottom of the protective cover mounting and adjusting plate 29, the protective cover mounting and adjusting plate 29 is connected with the T-shaped sliding groove II 211 on the corresponding side through the T-shaped sliding block II at the bottom of the protective cover mounting and adjusting plate and can slide along the T-shaped sliding groove II, and the protective cover mounting and adjusting plate 29 is jacked into the corresponding T-shaped sliding groove II 211 through a limiting bolt 8 to be fixed in position; the limiting bolt 8 at the outer end of the protective cover mounting adjusting plate 29 firstly passes through the position adjusting groove 252 on the connecting extending edge 251 at the front end of the protective cover 25 and then is inserted into the corresponding T-shaped sliding groove II 211 to complete the position fixing of the protective cover mounting adjusting plate 29 and the mounting of the protective cover 25, and the limiting bolt 8 at the outer end of the mounting adjusting plate 221 firstly passes through the position adjusting groove 252 on the connecting extending edge 251 at the rear end of the protective cover 29 and then is inserted into the corresponding T-shaped sliding groove II 211 to complete the position fixing of the mounting adjusting plate 221 and the mounting of the protective cover 25.
The position adjusting device 6 comprises an adjusting screw 61, a screw limiting shell 62 and an adjusting knob 63, the bottom of the screw limiting shell 62 is fixedly connected with the mounting base 1 in a detachable mode, a screw nut is arranged in the screw limiting shell 62, the inner side end of the adjusting screw 61 penetrates through the screw nut and then is fixedly connected with the motor mounting underframe 5 on one corresponding side, and the adjusting knob 63 is connected to the outer side end of the adjusting screw 61.
The measurement and control system is mainly used for controlling the electric elements required by the test, collecting feedback information and performing subsequent analysis to generate a complete analysis report.
When the gearbox test is carried out, firstly, the adaptive manufacturing of the first quick-mounting plate, the second quick-mounting plate and the third quick-mounting plate is completed according to the size of the gearbox, so as to meet the fixing requirement of the gearbox to be tested in the batch, then the first quick-mounting plate, the second quick-mounting plate and the third quick-mounting plate are correspondingly installed on the fixed end support, the movable end support and the driving motor end support respectively, then the first installation adjusting plate, the second installation adjusting plate and the protective cover installation adjusting plate are adjusted according to the specific size and the shape of the gearbox in a sliding mode, the positions of the first installation adjusting plate, the second installation adjusting plate and the protective cover installation adjusting plate in the horizontal direction are fixed after the first installation adjusting plate, the second installation adjusting plate and the protective cover.
And determining the position of the load motor in the horizontal direction through a position adjusting device, namely converting the rotary motion of an adjusting screw rod into the movement of the load motor in the horizontal direction by rotating an adjusting knob, so that a torque sensor connected with the shaft end of the load motor can be correctly connected with an output shaft of a gear box, transmitting the measured data to a collecting card by the torque sensor, and further transmitting the data to a measurement and control system for feedback collection of the data.
The well-installed and positioned gear box is connected with a driving motor, and the testing system controls the end of the driving motor to give torque through a driving motor controller, namely a torque control ring; the two frequency converters control the given rotating speed of the two load motor ends, namely a rotating speed control loop.
Torque control loop: the measurement and control system sends an instruction to the drive motor controller, the drive motor controller controls the torque output of the drive motor by controlling the phase current of the drive motor, a rotating speed torque sensor is also arranged at the motor shaft end of the drive motor, and closed-loop control is formed between the drive motor controller and the drive motor.
A rotating speed control loop: the measurement and control system sends an instruction to the frequency converter, the frequency converter controls the rotating speed of the load motor, the load motor feeds back a rotating speed signal to the frequency converter through the encoder, and closed-loop control is formed between the frequency converter and the load motor.
In the testing process, the three rotating speed torque sensors transmit collected rotating speed torque signals to the upper computer, the driving motor controller and the frequency converter transmit various data such as voltage and current to the upper computer, the upper computer monitors and records the transmitted various data, and the gear box is further connected with an oil temperature adjusting device to control the oil temperature.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (6)
1. The utility model provides a flexible test bench of new energy automobile gear box, a serial communication port, including the installation base, the gear box mount table, load motor and observing and controlling system, the gear box mount table is through the gear box installation chassis swing joint of its bottom on the installation base, be equipped with a load motor respectively in the both sides of gear box mount table, the load motor is through the motor installation chassis swing joint of its bottom on the installation base, be equipped with a position control device respectively in the outside of two motor installation chassis, be equipped with a torque speed sensor respectively at the motor axle head of load motor.
2. The new energy automobile gearbox flexibility test bench as claimed in claim 1, wherein a plurality of T-shaped chutes extending along the length direction of the mounting bottom plate are arranged on the upper surface of the mounting bottom plate at equal intervals; the bottom surface of the gear box installation underframe and the bottom surface of the motor installation underframe are respectively provided with a T-shaped sliding block which is matched with the T-shaped sliding groove at the position corresponding to the T-shaped sliding groove, and the T-shaped sliding blocks at the bottoms of the gear box installation underframe and the motor installation underframe are respectively connected with the corresponding T-shaped sliding grooves and can slide along the T-shaped sliding grooves.
3. The new energy automobile gearbox flexibility test bench as claimed in claim 2, wherein the gearbox mounting platform comprises a T-shaped groove bottom plate, a movable end support, a driving motor end support, a fixed end support, a protective cover, a first quick-assembly plate, a second quick-assembly plate and a third quick-assembly plate, the T-shaped groove bottom plate is fixedly connected to the gearbox mounting base frame, the driving motor end support and the movable end support are slidably connected to the front end and the rear end of the T-shaped groove bottom plate respectively, the fixed end support is fixedly connected to the right end of the T-shaped groove bottom plate, the first quick-assembly plate is detachably fixedly connected to the inner side face of the fixed end support, the second quick-assembly plate is detachably fixedly connected to the movable end support, and the third quick-assembly plate; the protective cover installation adjusting plate is arranged between the end support and the fixed end support of the driving motor, the protective cover installation adjusting plate can be connected to the front end of the bottom plate of the T-shaped groove in a sliding mode, a connection extending edge is arranged at the front end and the bottom of the rear end of the protective cover respectively, the right end of the connection extending edge is fixedly connected with the bottom of the fixed end support, the left side of the connection extending edge of the front end is adjustably connected with the protective cover installation adjusting plate through a position adjusting groove formed in the left side of the connection extending edge of the front end, and the left side of the connection extending edge of the.
4. The new energy automobile gearbox flexibility test bench as claimed in claim 3, wherein a plurality of T-shaped chutes II extending along the length direction are respectively arranged at the front end and the rear end of the top surface of the T-shaped groove bottom plate, the bottom of the movable end support is fixedly connected to the first installation adjusting plate, the bottom of the driving motor end support is fixedly connected to the second installation adjusting plate, T-shaped sliders II adapted to the first installation adjusting plate and the second installation adjusting plate are respectively arranged at positions corresponding to the T-shaped chutes II on the corresponding side, the first installation adjusting plate and the second installation adjusting plate are respectively connected with the T-shaped chutes II on the corresponding side through the T-shaped sliders II at the respective bottoms and can slide along the T-shaped sliders II, and the first installation adjusting plate and the second installation adjusting plate are jacked into the corresponding T-shaped chutes II through limit bolts to fix the positions after the first installation adjusting plate and the second installation.
5. The new energy automobile gearbox flexibility test bench according to claim 4, wherein a second T-shaped sliding block is arranged at the position, corresponding to a second T-shaped sliding groove at the front end of a bottom plate of a T-shaped groove, of the bottom of the protective cover installation adjusting plate, the protective cover installation adjusting plate is connected with the second T-shaped sliding groove on the corresponding side through the second T-shaped sliding block at the bottom of the protective cover installation adjusting plate and can slide along the second T-shaped sliding groove, and after the protective cover installation adjusting plate slides to determine a well-determined position, the protective cover installation adjusting plate is jacked into the corresponding second T-shaped sliding groove through a; the first-choice spacing bolt of outside end on the safety cover installation regulating plate passes the position control groove on the connection flange of safety cover front end and inserts again and accomplish the rigidity of safety cover installation regulating plate and the installation of safety cover in the corresponding T type spout two, and the first-choice spacing bolt of installation regulating plate outside end passes the position control groove on the connection flange of safety cover rear end and inserts again and accomplish the rigidity of installation regulating plate one and the installation of safety cover in the corresponding T type spout two.
6. The new energy automobile gearbox flexibility test bench according to claim 5, wherein the position adjusting device comprises an adjusting screw, a screw limiting shell and an adjusting knob, the bottom of the screw limiting shell is detachably and fixedly connected with the mounting base, a screw nut is arranged in the screw limiting shell, the inner side end of the adjusting screw penetrates through the screw nut and is fixedly connected with the motor mounting underframe on the corresponding side, and the adjusting knob is connected to the outer side end of the adjusting screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020184051.5U CN211504662U (en) | 2020-02-19 | 2020-02-19 | Flexible test bench of new energy automobile gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020184051.5U CN211504662U (en) | 2020-02-19 | 2020-02-19 | Flexible test bench of new energy automobile gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211504662U true CN211504662U (en) | 2020-09-15 |
Family
ID=72401945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020184051.5U Expired - Fee Related CN211504662U (en) | 2020-02-19 | 2020-02-19 | Flexible test bench of new energy automobile gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211504662U (en) |
-
2020
- 2020-02-19 CN CN202020184051.5U patent/CN211504662U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109297723B (en) | Electric automobile driving condition simulation test bed and simulation method | |
| CN206330758U (en) | A kind of test-bed for being used to test driving motor for electric automobile system reliability | |
| CN106226070B (en) | One kind being directed to different size transmission shaft real vehicle analog vibration testing stand | |
| CN103134671A (en) | Rolling linear guideway rated dynamic load and service life testing device | |
| CN102980767A (en) | Test measurement device for dynamic transmission efficiency of actuator of AMT clutch | |
| CN111089721A (en) | Flexible test bench of new energy automobile gear box | |
| CN211504662U (en) | Flexible test bench of new energy automobile gear box | |
| CN111929064A (en) | Multi-dimensional automatic loading fatigue testing machine for bearing | |
| CN103776711B (en) | Way rub accuracy testing platform | |
| CN208606920U (en) | Vehicle drags force moment testing device | |
| CN203011687U (en) | Test stand used for fork truck transmission part test | |
| CN113063587A (en) | Agricultural self-propelled mechanical gearbox test bench | |
| CN203705168U (en) | Anti-concavity test instrument for automobile body covering part | |
| CN209878477U (en) | Dot-matrix type vehicle window glass mechanical property testing platform | |
| CN1272609C (en) | Device for testing electrical transmission in two routes of electric vehicle | |
| CN203479524U (en) | Hydraulic clutch testing device | |
| CN204405324U (en) | A kind of automatic transmission stabilizing test device | |
| CN2311769Y (en) | Vehicle chassis comprehensive performance detecting system | |
| CN207095858U (en) | A kind of bearing test device for motor | |
| CN103076569B (en) | Wind driven generator test bed on basis of natural wind complex working condition simulator | |
| CN109164388A (en) | A kind of performance detecting system of hub motor for electric automobile | |
| CN109959554B (en) | Dot matrix type vehicle window glass mechanical property testing platform and testing method thereof | |
| CN112781880B (en) | Starting jitter testing method for electric drive assembly | |
| CN201120597Y (en) | Engine cylinder cap air valve pad selecting machine | |
| CN210513693U (en) | High-speed axial loading test device for ball screw pair |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210830 Address after: 215600 Le Yu Zhen Miao Gang Cun, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: Zhangjiagang Baituo Machinery Co.,Ltd. Address before: 213164 No.53 Gehu Middle Road, HUTANG Town, Wujin District, Changzhou City, Jiangsu Province Patentee before: Changzhou Vocational Institute of Textile and Garment |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200915 Termination date: 20220219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |