All-in-one electric drive system testing device

Abstract

The utility model discloses an all-in-one electric driving system testing device, and relates to the field of electric driving system testing, the all-in-one electric driving system testing device comprises a testing table, a tested motor and a dynamometer main body, the output ends of the tested motor and the dynamometer main body are respectively connected with a tested motor shaft and a dynamometer main shaft, and the testing table is provided with a lifting part. A dismounting assembly and a lifting part are arranged between a tested motor shaft and a dynamometer main shaft, the lifting part comprises a moving frame slidably connected to the top of the test board, a vertical rod vertically distributed is installed on the inner wall of the right side of the moving frame, an installation platen is slidably connected to the vertical rod, and the dismounting assembly comprises an installation cylinder fixedly connected with the dynamometer main shaft. A tested motor shaft is connected in the installation cylinder. The height of the tested motor on the mounting bedplate can be adjusted through the lifting component, the tested motor does not need to be manually carried by the all-in-one electric drive system testing device, a shaft of the tested motor on the all-in-one electric drive system testing device and a dynamometer can be quickly mounted conveniently through the dismounting assembly, and the testing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of electric drive system testing technology, and in particular to an all-in-one electric drive system testing device. Background Technology

[0002] An all-in-one electric drive system is a highly integrated electric vehicle powertrain solution that integrates functional units such as a motor, electronic control unit, reducer, on-board charger (OBC), DC-DC converter, and power distribution module into a single system. An all-in-one electric drive system test device is used to test its performance.

[0003] When using the all-in-one electric drive system testing device, the motor shaft of the motor under test needs to be connected to the main shaft of the dynamometer. The various data from the dynamometer can be used for no-load speed test, no-load current test, power torque test, temperature test, efficiency test, blockage test, overload test, maximum operating speed, speed test and durability test, and the performance indicators of pure electric vehicle motors are tested.

[0004] Before the testing process, the motor under test is usually moved to the testing position manually, and then the motor shaft is connected to the main shaft of the dynamometer. However, the motors under test are all heavy, and it is quite troublesome to move them manually each time. In addition, the disassembly and assembly steps of the motor shaft and the main shaft of the dynamometer are cumbersome, which affects the testing efficiency. Therefore, we have improved the above-mentioned existing technology based on actual usage. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a multi-functional electric drive system testing device.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a multi-in-one electric drive system testing device, including a test bench, a motor under test and a dynamometer body, the output ends of the motor under test and the dynamometer body are respectively connected to the shaft of the motor under test and the main shaft of the dynamometer, the test bench is provided with a lifting component, and a disassembly and assembly component is provided between the shaft of the motor under test and the main shaft of the dynamometer.

[0009] The lifting component includes a movable frame that is slidably connected to the top of the test bench. Vertically distributed vertical rods are installed on the inner right side of the movable frame, and a mounting plate is slidably connected to the vertical rods. The motor under test is connected to the mounting plate through the mounting plate and fixing screws.

[0010] The assembly and disassembly components include a mounting sleeve that is fixedly connected to the main shaft of the dynamometer, and the shaft of the motor under test is connected inside the mounting sleeve.

[0011] As a preferred embodiment of the multi-functional electric drive system testing device of this utility model, the lifting component also includes a geared motor, which is located on the top left side of the moving frame, and the output end of the geared motor is connected to a lead screw, which is threadedly connected to the mounting plate.

[0012] As a preferred embodiment of the multi-functional electric drive system testing device of this utility model, the disassembly and assembly components also include a long bolt that passes through the mounting cylinder and the shaft of the motor under test, and two sets of locking nuts are threaded on the long bolt. The mounting cylinder has a through hole through the long bolt, and the shaft of the motor under test has a through hole that connects to the through hole.

[0013] As a preferred embodiment of the multi-functional electric drive system testing device of this utility model, a guide groove is provided on the test platform, and a sliding seat is slidably connected in the guide groove, with the top of the sliding seat connected to the bottom of the moving frame.

[0014] As a preferred embodiment of the multi-functional electric drive system testing device of this utility model, two sets of fixing plates are also installed on the test platform. Each set of fixing plates is equipped with an electric push rod. The bottom of the outer walls on both sides of the movable frame is connected to a fixing block. The telescopic ends of the two sets of electric push rods are respectively connected to the two sets of fixing blocks.

[0015] (III) Beneficial Effects

[0016] This invention provides a multi-functional electric drive system testing device. It has the following advantages:

[0017] The operation of the geared motor on the lifting component can drive the lead screw to rotate. The mounting plate, which is threaded to the lead screw, can be adjusted in height of the motor under test on the mounting plate after sliding connection with the vertical rod. The multi-in-one electric drive system test device eliminates the need for manual handling of the motor under test, thus improving testing efficiency.

[0018] By using two sets of electric push rods and cooperating with the sliding connection between the sliding seat and the guide groove, the lateral position of the motor under test on the lifting component can be adjusted. The shaft of the motor under test can be easily connected to the mounting cylinder on the disassembly and assembly assembly. The long bolts and two sets of locking nuts on the disassembly and assembly assembly assembly enable quick disassembly and assembly of the shaft of the motor under test and the mounting cylinder, which facilitates the quick installation of the shaft of the motor under test and the dynamometer on the all-in-one electric drive system testing device and further improves the testing efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the lifting component and the motor under test in this utility model;

[0022] Figure 3 This is a schematic diagram of the disassembly and assembly components of this utility model.

[0023] In the diagram, 1. Test bench; 2. Dynamometer body; 3. Dynamometer spindle; 4. Fixing plate; 5. Electric push rod; 6. Fixing block; 7. Lifting component; 700. Moving frame; 701. Gear motor; 702. Lead screw; 703. Vertical rod; 704. Mounting platform; 8. Motor under test; 9. Motor shaft under test; 10. Assembly / disassembly assembly; 101. Mounting cylinder; 102. Long bolt; 103. Locking nut; 11. Guide groove; 12. Sliding seat. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Example 1

[0026] Reference Figure 1 and Figure 2 This is the first embodiment of the present invention, which provides a multi-functional electric drive system testing device, including a test bench 1, a motor under test 8, and a dynamometer body 2. The output ends of the motor under test 8 and the dynamometer body 2 are respectively connected to the motor under test shaft 9 and the dynamometer main shaft 3. The test bench 1 is provided with a lifting component 7, and a disassembly and assembly component 10 is provided between the motor under test shaft 9 and the dynamometer main shaft 3. Before use, the electrical terminals of each electrical device need to be electrically connected to the electrical terminals of the external power supply and the controller through wires. The dynamometer body 2 can be used for no-load speed test, no-load current test, power torque test, temperature test, efficiency test, blockage test, overload test, maximum working speed, speed test, and durability test. The lifting component 7 can adjust the height of the motor under test 8 on the mounting plate 704. The multi-functional electric drive system testing device eliminates the need for manual handling of the motor under test, thus improving testing efficiency.

[0027] The lifting component 7 includes a movable frame 700 slidably connected to the top of the test bench 1. Vertically distributed vertical rods 703 are installed on the inner right side of the movable frame 700, and a mounting plate 704 is slidably connected to the vertical rods 703. The motor under test 8 is connected to the mounting plate 704 through the mounting plate and fixing screws. Through the slidable connection between the vertical rods 703 and the mounting plate 704, the height of the mounting plate 704 can be adjusted to easily raise the motor under test 8 to a higher position so that the lateral position of the motor shaft 9 is aligned with the dynamometer main shaft 3.

[0028] Specifically, the lifting component 7 also includes a reduction motor 701, which is located on the top left side of the movable frame 700. The output end of the reduction motor 701 is connected to a lead screw 702, which is threadedly connected to the mounting plate 704. The mounting plate 704 has a threaded hole through which the lead screw 702 passes. The operation of the reduction motor 701 can drive the lead screw 702 to rotate. After the mounting plate 704, which is threadedly connected to the lead screw 702, is slidably limited by the vertical rod 703, the motor 8 under test on the mounting plate 704 can be raised and lowered.

[0029] Furthermore, a guide groove 11 is provided on the test bench 1, and a sliding seat 12 is slidably connected in the guide groove 11. The top of the sliding seat 12 is connected to the bottom of the moving frame 700. The sliding seat 12 and the moving frame 700 are fixedly connected. Through the sliding connection between the sliding seat 12 and the guide groove 11, the lateral position of the motor under test 8 can be adjusted, which facilitates the connection between the motor shaft 9 under test and the main shaft 3 of the dynamometer.

[0030] Furthermore, two sets of fixing plates 4 are installed on the test bench 1. Each set of fixing plates 4 is equipped with an electric push rod 5. The bottom of the outer walls on both sides of the movable frame 700 is connected to a fixing block 6. The telescopic ends of the two sets of electric push rods 5 are respectively connected to the two sets of fixing blocks 6. The two sets of fixing plates 4 are fixedly connected to the test bench 1, and the fixing blocks 6 are fixedly connected to the movable frame 700. Through the synchronous operation of the two sets of electric push rods 5, the movable frame 700 can be pushed to slide on the test bench 1.

[0031] Example 2

[0032] Reference Figure 1 and Figure 3 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The disassembly and assembly component 10 includes a mounting cylinder 101 fixedly connected to the main shaft 3 of the dynamometer, and the motor shaft 9 under test is connected inside the mounting cylinder 101. A mounting groove for mounting the motor shaft 9 under test is provided inside the mounting cylinder 101 to facilitate the insertion and installation of the motor shaft 9 under test.

[0033] Specifically, the disassembly and assembly assembly 10 also includes a long bolt 102 that passes through the mounting cylinder 101 and the motor shaft 9 under test. Two sets of locking nuts 103 are threaded onto the long bolt 102. The mounting cylinder 101 has a through hole through the long bolt 102, and the motor shaft 9 under test has a through hole that connects to the through hole. When the motor shaft 9 under test is inserted into the mounting cylinder 101, the through hole on the motor shaft 9 is aligned with the through hole, and the long bolt 102 is then inserted through. The two sets of locking nuts 103 are rotated so that they fit against the top and bottom of the mounting cylinder 101, thus realizing the installation of the motor shaft 9 under test and the dynamometer spindle 3. When disassembling, the locking nuts 103 are removed, the long bolt 102 is pulled out, and the motor shaft 9 under test can be removed from the mounting cylinder 101. The disassembly and assembly are convenient, facilitating the rapid installation of the motor shaft 9 under test and the dynamometer on the multi-in-one electric drive system testing device, and further improving the testing efficiency.

[0034] Working principle: Before use, connect the electrical terminals of each electrical device to the external power supply and the electrical terminals of the controller via wires. Connect the motor under test 8 to the mounting plate 704 via the mounting plate and fixing screws. Then, start the reduction motor 701. The operation of the reduction motor 701 drives the lead screw 702 to rotate. After the mounting plate 704, which is threaded to the lead screw 702, is limited by the sliding of the vertical rod 703, the motor under test 8 on the mounting plate 704 can be raised and lowered, aligning the shaft 9 of the motor under test with the main shaft 3 of the dynamometer. Then, the two sets of electric push rods 5 work synchronously, causing the sliding seat 12 to slide in the guide groove 11, thus moving the motor under test 8 on the moving frame 700 toward one end of the dynamometer body 2. When the motor shaft 9 under test is inserted into the mounting cylinder 101, the through hole and the through hole on the motor shaft 9 under test are aligned, and the long bolt 102 is then inserted through. The two sets of locking nuts 103 are rotated so that the two sets of locking nuts 103 are both attached to the top and bottom of the mounting cylinder 101, thus realizing the installation of the motor shaft 9 under test and the main shaft 3 of the dynamometer. After the main body 2 of the dynamometer is started, the motor under test 8 is started, causing the motor shaft 9 under test to rotate. Since the motor shaft 9 under test is fixedly connected to the main shaft 3 of the dynamometer through the mounting cylinder 101, the main body 2 of the dynamometer can be used for no-load speed test, no-load current test, power torque test, temperature test, efficiency test, blockage test, overload test, maximum working speed, speed test and durability test.

[0035] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A multi-functional electric drive system testing device, comprising a test bench (1), a motor under test (8), and a dynamometer body (2), wherein the output ends of the motor under test (8) and the dynamometer body (2) are respectively connected to the motor under test shaft (9) and the dynamometer main shaft (3), characterized in that: The test bench (1) is provided with a lifting component (7), and a disassembly assembly (10) is provided between the test motor shaft (9) and the dynamometer main shaft (3); The lifting component (7) includes a movable frame (700) slidably connected to the top of the test bench (1). The movable frame (700) has vertically distributed vertical rods (703) installed on the inner right side wall, and a mounting plate (704) is slidably connected to the vertical rods (703). The motor under test (8) is connected to the mounting plate (704) through the mounting plate and fixing screws. The assembly (10) includes a mounting cylinder (101) fixedly connected to the main shaft (3) of the dynamometer, and the motor shaft (9) under test is connected inside the mounting cylinder (101).

2. The multi-functional electric drive system testing device according to claim 1, characterized in that: The lifting component (7) also includes a reduction motor (701), which is located on the top left side of the movable frame (700), and the output end of the reduction motor (701) is connected to a lead screw (702), which is threadedly connected to the mounting plate (704).

3. The multi-functional electric drive system testing device according to claim 1, characterized in that: The assembly / disassembly assembly (10) also includes a long bolt (102) that passes through the mounting cylinder (101) and the motor shaft (9) under test, and two sets of locking nuts (103) are threaded onto the long bolt (102).

4. The multi-functional electric drive system testing device according to claim 3, characterized in that: The mounting cylinder (101) has a through hole for a long bolt (102), and the motor shaft (9) under test has a through hole that connects to the through hole.

5. The multi-functional electric drive system testing device according to claim 1, characterized in that: The test bench (1) is provided with a guide groove (11), and a sliding seat (12) is slidably connected in the guide groove (11). The top of the sliding seat (12) is connected to the bottom of the moving frame (700).

6. The multi-functional electric drive system testing device according to claim 1, characterized in that: The test bench (1) is also equipped with two sets of fixing plates (4), each set of fixing plates (4) is equipped with an electric push rod (5), and the bottom of the outer walls on both sides of the movable frame (700) is connected to a fixing block (6), and the telescopic ends of the two sets of electric push rods (5) are respectively connected to the two sets of fixing blocks (6).

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