Inertia-adjustable motor test system

Abstract

The utility model discloses a motor test system with adjustable inertia, and relates to the technical field of machine manufacturing. The device comprises a base, a first support, a second support and a third support are installed on the top of the base, a motor is installed on one side of the first support, a coupler is installed at the output end of the motor, and an encoder adapter shaft is rotationally connected between the second support and the third support. Bearing chambers are rotationally connected to the two sides of the surface of the encoder adapter shaft, an adjustable inertia disc is arranged on the surface of the encoder adapter shaft, locking discs are arranged on the two sides of the adjustable inertia disc, and a threaded hole is formed in the adjustable inertia disc in a penetrating mode. According to the utility model, the inertia of the inertia disc can be adjusted at any time according to test requirements in the motor test process, and the test efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical manufacturing technology, and in particular relates to a motor testing system with adjustable inertia. Background Technology

[0002] Motor inertia testing is the process of evaluating the rotational inertia of a motor rotor (including the rotor itself and the components connected to it). Rotational inertia is a physical quantity that measures the magnitude of an object's rotational inertia. For motors, it reflects the ability of the motor rotor to resist angular acceleration during rotation. Understanding the rotational inertia of a motor is very important for the design, control, and application of motors.

[0003] In routine motor performance testing, simulating the inertia of the actual operating environment for load testing is an essential process. In actual experiments, we found that frequently manufacturing different inertia disks based on the required rotational inertia of the motor not only prolongs the testing time but also increases the testing cost. Therefore, we provide an adjustable inertia motor testing system to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a motor testing system with adjustable inertia, which has the advantage of being able to quickly adjust the inertia and solves the problem that the inertia disk of the inertia load platform cannot be adjusted in time during actual testing.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0006] This utility model relates to an adjustable inertia motor testing system, comprising a base, on the top of which a first bracket, a second bracket, and a third bracket are respectively mounted. A motor is mounted on one side of the first bracket, and a coupling is mounted on the output end of the motor. An encoder adapter shaft is rotatably connected between the second and third brackets. Bearing chambers are rotatably connected to both sides of the encoder adapter shaft. An adjustable inertia disk is provided on the surface of the encoder adapter shaft, and locking discs are provided on both sides of the adjustable inertia disk. A threaded hole is provided through the interior of the adjustable inertia disk.

[0007] The present invention is further configured such that the adjustable inertia disk includes an upper inertia disk and a lower inertia disk, a dovetail interlocking mechanism is provided at the connection between the upper inertia disk and the lower inertia disk, a stop interlocking mechanism is provided on one side of the locking disk, and a keyway is provided inside the locking disk.

[0008] The present invention is further configured such that the adjustable inertia disk also includes an inertia disk plate, and an inertia disk stop is provided on one side of the inside of the locking disk.

[0009] The present invention is further provided that a protective cover is installed on the surface of the adjustable inertia disk by bolts, and the protective cover is made of metal.

[0010] The present invention is further configured such that the motor is fixedly connected to the first bracket via a flange, and the encoder adapter shaft is rotatably connected to the second and third brackets via bearings.

[0011] The present invention is further configured such that the bottom of the first bracket, the second bracket and the third bracket are all provided with mounting grooves, and the mounting grooves are slot-shaped.

[0012] This invention has the following advantages: the inertia of the inertia disk can be adjusted at any time according to the test requirements during the motor test, which improves the test efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0014] Figure 1 A three-dimensional test system for an adjustable inertia motor Figure 1 .

[0015] Figure 2 This is a schematic diagram of an adjustable inertia disk in an adjustable inertia motor testing system.

[0016] Figure 3 This is a cross-sectional view of a motor testing system with adjustable inertia.

[0017] Figure 4 A three-dimensional test system for an adjustable inertia motor Figure 2 .

[0018] Figure 5 This is an exploded view of a partial structure of a test system for an adjustable inertia motor.

[0019] Figure 6 This is an exploded view of a partial structure of a test system for an adjustable inertia motor.

[0020] Figure 7 A test system for motors with adjustable inertia Figure 3 A magnified view of A in the middle.

[0021] In the attached diagram: 1. Base; 2. First bracket; 3. Second bracket; 4. Third bracket; 5. Motor; 6. Coupling; 7. Encoder adapter shaft; 8. Bearing housing; 9. Adjustable inertia disk; 10. Locking disk; 11. Threaded hole; 12. Upper inertia disk; 13. Lower inertia disk; 14. Dovetail interlocking mechanism; 15. Stop interlocking mechanism; 16. Keyway; 17. Inertia disk plate; 18. Inertia disk stop; 19. Protective cover; 20. Mounting slot. Detailed Implementation

[0022] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1

[0024] Please see Figure 1-7 This utility model is a motor testing system with adjustable inertia, including a base 1. A first bracket 2, a second bracket 3 and a third bracket 4 are respectively installed on the top of the base 1. A motor 5 is installed on one side of the first bracket 2. A coupling 6 is installed at the output end of the motor 5. An encoder adapter shaft 7 is rotatably connected between the second bracket 3 and the third bracket 4. Bearing chambers 8 are rotatably connected to both sides of the surface of the encoder adapter shaft 7. An adjustable inertia disk 9 is provided on the surface of the encoder adapter shaft 7. Locking disks 10 are provided on both sides of the adjustable inertia disk 9. A threaded hole 11 is opened through the interior of the adjustable inertia disk 9.

[0025] Specifically: The inertia disk is set with multiple sets of disks, which are fixed together by dovetail interlocking mechanism and stop interlocking mechanism. Then, it is tightly fixed to the encoder adapter shaft by locking discs on both sides. Finally, eight long screws pass through the entire inertia disk to lock it, eliminating the risk of the inertia disk disintegrating and flying out at high speed. The left end of the encoder adapter shaft is connected to the motor through a coupling.

[0026] Example 2

[0027] Please see Figure 1-7Based on Embodiment 1, the adjustable inertia disk 9 includes an upper inertia disk 12 and a lower inertia disk 13. A dovetail interlocking mechanism 14 is provided at the connection between the upper inertia disk 12 and the lower inertia disk 13. A stop interlocking mechanism 15 is provided on one side of the locking disk 10. A keyway 16 is provided inside the locking disk 10. The adjustable inertia disk 9 also includes an inertia disk plate 17. An inertia disk stop 18 is provided on one side inside the locking disk 10. A protective cover 19 is bolted to the surface of the adjustable inertia disk 9. The protective cover 19 is made of metal. The motor 5 is fixedly connected to the first bracket 2 through a flange. The encoder adapter shaft 7 is rotatably connected to the second bracket 3 and the third bracket 4 through bearings. The bottom of the first bracket 2, the second bracket 3 and the third bracket 4 are all provided with mounting grooves 20. The mounting grooves 20 are slot-shaped.

[0028] Specifically: the protective cover can protect its internal structure, and the mounting slots are used to install the first bracket, the second bracket, and the third bracket.

[0029] The working principle of this utility model is as follows: through the design of a detachable inertia disk, the inertia can be quickly adjusted. Then, the inertia disk is fixed by a keyway, dovetail interlock, stop interlock, locking plate, and screw fixation. These five safety measures ensure stable operation during rotation.

[0030] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. An adjustable inertia motor (5) test system comprising a base (1) characterised in that: The base (1) top is respectively installed with first support (2), second support (3) and third support (4), one side of first support (2) is installed with motor (5), the output end of motor (5) is installed with coupling (6), the rotatable connection of second support (3) and third support (4) is connected with encoder adapter shaft (7), both sides of the surface of encoder adapter shaft (7) are rotatably connected with bearing chamber (8), the surface of encoder adapter shaft (7) is provided with adjustable inertia disc (9), both sides of adjustable inertia disc (9) are provided with locking disc (10), the inside of adjustable inertia disc (9) is penetrated with threaded hole (11).

2. A test system for an adjustable inertia electric machine (5) according to claim 1, characterized in that: The adjustable inertia disc (9) comprises an upper inertia disc (12) and a lower inertia disc (13), a dovetail interlocking mechanism (14) is arranged at the connection of the upper inertia disc (12) and the lower inertia disc (13), a locking disc (10) is provided with a stop interlocking mechanism (15) on one side, and a key groove (16) is arranged in the locking disc (10).

3. A test system for an adjustable inertia motor (5) according to claim 1, characterized in that: The adjustable inertia disc (9) further comprises an inertia disc disc (17), and an inertia disc stop (18) is arranged on one side of the inside of the locking disc (10).

4. A test system for an adjustable inertia electric machine (5) according to claim 1, characterized in that: The surface of the adjustable inertia disc (9) is provided with a protective cover (19) through bolts, and the protective cover (19) is made of metal.

5. A test system for an adjustable inertia electric machine (5) according to claim 1, characterized in that: The motor (5) is fixedly connected with the first support (2) through a flange plate, and the encoder adapter shaft (7) is rotatably connected with the second support (3) and the third support (4) through bearings.

6. A test system for an adjustable inertia electric machine (5) according to claim 1, characterized in that: The bottom of the first support (2), the second support (3) and the third support (4) is provided with an installation groove (20), and the installation groove (20) is a slot.

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