General test tool for electric machine

Abstract

The utility model provides general test tool of motor relates to motor test tool technical field, include: stator installation mechanism: including bearing seat, bearing and the shell of being installed in bearing seat are connected with bearing, the inside of shell is used for installing stator, rotor installation mechanism: including mandril, mobile seat and position locking assembly are connected with mandril, and the rotor is used for installing on mandril, test drive mechanism: including drive motor and coupling, through setting up stator installation mechanism and rotor installation mechanism, wherein rotor installation mechanism can move along the direction of stator installation mechanism of setting route, make stator and rotor can quickly and accurately assemble for test state, start drive motor and carry out performance test, after testing, mobile seat moves outward, replaces rotor or stator, carries out the test of next product, spares at least most of assembly step to improve test efficiency.

Description

Technical Field

[0001] This utility model relates to the field of motor testing tooling technology, and in particular to general-purpose motor testing tooling. Background Technology

[0002] In the design and production of electric motors, testing is required. Traditional motor testing involves assembling the entire motor, including the housing, stator, front and rear end covers, rotor, and bearings. This assembly process is time-consuming. During installation, the rotor's magnetism requires it to attract the stator, necessitating considerable time and effort to fit it into the bearing housing, further increasing the installation time. In batch testing, each rotor replacement necessitates reassembly. Therefore, current motor testing efficiency is low. This application addresses these shortcomings. Utility Model Content

[0003] The purpose of this invention is to provide a universal testing fixture for motors, which can increase the number of motors tested per unit time and improve motor testing efficiency.

[0004] To solve the above problems, this utility model provides a universal testing fixture for motors, including:

[0005] Stator mounting mechanism: includes a bearing housing, a bearing mounted in the bearing housing, and a housing connected to the bearing. The housing is used to mount the stator, and a transmission connecting shaft is provided on the housing.

[0006] Rotor mounting mechanism: includes a spindle, a movable seat connected to the spindle, and a position locking assembly. The spindle is used to mount the rotor, the movable seat can move towards the bearing seat to put the rotor and stator into a test state, and the position locking assembly is used to lock the position of the movable seat.

[0007] Test drive mechanism: includes a drive motor and a coupling, wherein the drive motor is used to drive the housing to rotate, and the coupling is used to connect the drive motor and the housing to a transmission shaft.

[0008] During batch testing, the stator is fixed using the stator mounting mechanism, and the rotor is installed on the spindle and secured with nuts. The moving seat is then moved so that the rotor moves toward the stator until both reach the test state. At this point, the drive motor is started to perform performance testing. By adjusting the speed of the drive motor, different performance tests of the product under test can be achieved.

[0009] After the test is completed, the moving base is moved outward to replace the rotor, thereby improving the test efficiency.

[0010] According to one embodiment of the present invention, the stator mounting mechanism further includes a pressure plate, which can be installed at the opening of the housing for fixing the stator.

[0011] The pressure plate is preferably connected to the housing by bolts.

[0012] According to one embodiment of the present invention, the general testing fixture for motors also includes a base plate, on which a guide rail is provided, and the movable seat is mounted on the guide rail. Preferably, two sets of guide rails are provided.

[0013] According to one embodiment of the present invention, a limiting post is provided on the base plate for limiting the movement of the movable seat.

[0014] According to one embodiment of the present invention, the position locking component includes a rotating handle and a locking cam. The rotating handle is rotatably mounted on a movable seat. A sliding groove is provided on the base plate. The locking cam is disposed in the sliding groove. The rotating handle is connected to the locking cam. When the movable seat reaches the limit position, the rotating handle is rotated, and the position is fixed by the clamping force between the locking cam and the inner wall of the sliding groove.

[0015] According to one embodiment of the present invention, the general testing fixture for motors further includes a protective mechanism, which includes slide rail assemblies located on both sides of the stator mounting mechanism and the rotor mounting mechanism, and a protective cover connected to the slide rail assemblies.

[0016] The protective cover is used to move to the outside of the stator and rotor during testing to provide protection.

[0017] According to one embodiment of the present invention, the movable seat is provided with a locking bolt for locking the mandrel, and a locking nut is installed at one end of the mandrel.

[0018] The movable base has a through hole for installing the mandrel. The mandrel is a flat shaft with a flat surface when inserted into the through hole. The locking bolt abuts against the flat surface to achieve a circumferential locking effect. The locking nut is installed on the other side of the movable base to achieve an axial locking effect on the mandrel.

[0019] According to one embodiment of the present invention, the drive motor is mounted on a motor mounting body, and the motor mounting body is movable to facilitate the assembly and disassembly of the coupling and the transmission connecting shaft.

[0020] According to one embodiment of the present invention, the motor fixing body is provided with an oblong hole, and the base plate is provided with bolts.

[0021] According to one embodiment of the present invention, at least two sets of bearings are provided to ensure that the motor can smoothly drive the housing when it rotates.

[0022] The beneficial effects of this utility model are that by setting a stator mounting mechanism and a rotor mounting mechanism, wherein the rotor mounting mechanism can move along a set route toward the stator mounting mechanism, the stator and rotor can be quickly and accurately assembled into a test state, avoiding the time-consuming and labor-intensive test assembly process caused by the attraction between the stator and rotor in traditional manual assembly. The drive motor is started to perform performance testing. After the test is completed, the moving base is moved outward to replace the rotor or stator for the next product test, eliminating at least most of the assembly steps, thereby improving testing efficiency. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 A schematic diagram of the overall structure of a general-purpose testing fixture for motors;

[0025] Figure 2 Another perspective diagram of a general-purpose testing fixture for motors;

[0026] Figure 3 This is a schematic diagram of the bottom structure of the base plate;

[0027] Figure 4 This is a sectional view of the stator mounting mechanism and the rotor mounting mechanism;

[0028] Figure 5 This is a schematic diagram of the locking mechanism of the spindle. Detailed Implementation

[0029] The following description is only intended to disclose the present invention so that those skilled in the art can implement it. The embodiments in the following description are merely examples, and those skilled in the art will conceive of other obvious modifications. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other solutions that do not depart from the spirit and scope of the present invention.

[0030] Example 1:

[0031] General-purpose testing fixtures for motors, such as Figure 1 , Figure 2 It includes a stator mounting mechanism, a rotor mounting mechanism, a test drive mechanism, and a base plate 1.

[0032] The bottom of the base plate 1 is equipped with several support feet, making it easy to place on the workbench.

[0033] like Figure 1 , Figure 4 The stator mounting mechanism includes a bearing housing 5, a bearing 16 mounted in the bearing housing 5, and a housing 13 connected to the bearing 16. The housing 13 is used to mount the stator, and a transmission connecting shaft 131 is provided on the housing 13.

[0034] The bearing 16 is provided in at least two sets to ensure that the motor can smoothly drive the housing 13 when it rotates. The pressure plate 7 can be installed at the opening of the housing 13 to fix the stator. The pressure plate 7 is preferably connected to the housing 13 by bolts.

[0035] like Figure 1 , Figure 2 , Figure 4 , Figure 5 The rotor mounting mechanism includes a spindle 10, a movable seat 8 connected to the spindle 10, and a position locking assembly. The spindle 10 is used to mount the rotor. After the rotor is installed, it is preferably fixed to the spindle 10 by a nut. The movable seat 8 can move towards the bearing seat 5 to put the rotor and stator into a test state. The position locking assembly is used to lock the position of the movable seat 8.

[0036] The base plate 1 is provided with a guide rail 19, and the movable seat 8 is installed on the guide rail 19. Preferably, two sets of guide rails 19 are provided. The base plate 1 is provided with a limit post 18 for limiting the movable seat 8.

[0037] like Figure 5 The movable seat 8 is provided with locking bolts 11 for locking the spindle 10. One end of the spindle 10 is equipped with a locking nut 17. The movable seat 8 has a through hole for the spindle 10 to be installed. The spindle 10 is a flat shaft with a flat surface when inserted into the through hole. Two sets of locking bolts 11 are provided to abut against the flat surface to achieve a circumferential locking effect. The locking nut 17 is installed on the other side of the movable seat 8 to achieve an axial locking effect on the spindle 10.

[0038] Replaceable spindle 10 is compatible with different rotors.

[0039] The position locking assembly includes a rotating handle 12 and a locking cam 15. The rotating handle 12 is rotatably mounted on the movable base 8, and the base plate 1 is provided with a sliding groove 9, such as... Figure 3 The locking cam 15 is set in the slide groove 9. The rotating handle 12 is connected to the locking cam 15. When the moving seat 8 reaches the limit position, the rotating handle 12 is rotated to fix the position by the clamping force between the locking cam 15 and the inner wall of the slide groove 9.

[0040] like Figure 1 , Figure 2 The test drive mechanism includes a drive motor 3 and a coupling 6. The drive motor 3 is used to drive the housing 13 to rotate, and the coupling 6 is used to connect the drive motor 3 and the transmission shaft 131 of the housing 13.

[0041] Coupling 6 is preferably a double diaphragm coupling.

[0042] The drive motor 3 is mounted on the motor mounting body 4. The motor mounting body 4 is movable, which facilitates the assembly and disassembly of the coupling 6 and the transmission connecting shaft 131. Specifically, the motor mounting body 4 is provided with a waist-shaped hole 14, and the base plate 1 is provided with a bolt located in the waist-shaped hole 14. After adjusting the position of the motor mounting body 4, the bolt is tightened for fixation.

[0043] During batch testing, the stator is fixed using a stator mounting mechanism. The stator is slidably fitted into the housing 13, centered, and then fixed using a pressure plate 7. After the rotor is mounted on the spindle 10, it is fixed with a nut. The moving seat 8 is moved to move the rotor toward the stator. Since the moving direction of the moving seat 8 is fixed, the rotor remains coaxial with the stator, achieving quick and accurate assembly until both reach the test state. At this time, the drive motor 3 is started to perform performance testing. The drive motor 3 drives the housing 13 and the stator inside to rotate through the coupling 6 (the rotor does not rotate). By adjusting the speed of the drive motor 3, different performance tests of the product under test can be achieved.

[0044] After the test is completed, the movable seat 8 is moved outward to replace the rotor or stator, eliminating at least most of the assembly steps and thus improving testing efficiency.

[0045] Example 2:

[0046] Based on Embodiment 1, in this embodiment, the general testing fixture for motors also includes a protective mechanism. The protective mechanism includes a slide rail assembly 2 located on both sides of the stator mounting mechanism and the rotor mounting mechanism, and an arched protective cover (not shown in the figure) connected to the slide rail assembly 2. The protective cover can be made of metal or plastic.

[0047] The protective cover is used to move to the outside of the stator and rotor during testing to provide protection.

[0048] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations and modifications.

Claims

1. A universal testing fixture for motors, characterized in that: include: Stator mounting mechanism: includes bearing housing (5), bearing (16) mounted in bearing housing (5) and housing (13) connected to bearing (16), the inside of housing (13) is used to mount stator, and a transmission connecting shaft (131) is provided on housing (13). Rotor mounting mechanism: includes a spindle (10), a movable seat (8) connected to the spindle (10), and a position locking assembly. The spindle (10) is used to mount the rotor. The movable seat (8) can move towards the bearing seat (5) to put the rotor and stator into a test state. The position locking assembly is used to lock the position of the movable seat (8). Test drive mechanism: includes drive motor (3) and coupling (6), the drive motor (3) is used to drive the housing (13) to rotate, and the coupling (6) is used to connect the drive motor (3) and the transmission connection shaft (131) of the housing (13).

2. The universal testing fixture for motors according to claim 1, characterized in that: The stator mounting mechanism also includes a pressure plate (7), which can be installed at the opening of the housing (13) for fixing the stator.

3. The universal testing fixture for motors according to claim 2, characterized in that: The general testing fixture for motors also includes a base plate (1), on which a guide rail (19) is provided, and the movable seat (8) is mounted on the guide rail (19).

4. The universal testing fixture for motors according to claim 3, characterized in that: The base plate (1) is provided with a limit post (18) for limiting the movement of the movable seat (8).

5. The universal testing fixture for motors according to claim 4, characterized in that: The position locking assembly includes a rotating handle (12) and a locking cam (15). The rotating handle (12) is rotatably mounted on the movable seat (8). A slide groove (9) is provided on the base plate (1). The locking cam (15) is disposed in the slide groove (9). The rotating handle (12) is connected to the locking cam (15).

6. The universal testing fixture for motors according to any one of claims 1-5, characterized in that: The general testing fixture for motors also includes a protective mechanism, which includes a slide rail assembly (2) located on both sides of the stator mounting mechanism and the rotor mounting mechanism, and a protective cover connected to the slide rail assembly (2).

7. The universal testing fixture for motors according to any one of claims 1-5, characterized in that: The movable seat (8) is provided with a locking bolt (11) for locking the spindle (10), and a locking nut (17) is installed at one end of the spindle (10).

8. The universal testing fixture for motors according to any one of claims 1-5, characterized in that: The drive motor (3) is mounted on the motor mounting body (4), which is movable to facilitate the assembly and disassembly of the coupling (6) and the transmission connecting shaft (131).

9. The universal testing fixture for motors according to claim 8, characterized in that: The motor mounting body (4) is provided with a waist-shaped hole (14).

10. The universal testing fixture for motors according to claim 1, characterized in that: At least two sets of the bearing (16) are provided.

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