Motor test coupling

Abstract

The utility model discloses a motor test coupling, which comprises a base and a motor connecting end, the base is connected with a test bench, and the motor connecting end is connected with a motor shaft; the bottom surface of the base is a plum blossom surface, the plum blossom surface is connected with a plum blossom pad of a test bench, and a base through hole is formed in the center of the base; the motor connecting end comprises a connecting base and a connecting shaft which are coaxially arranged, a motor shaft through hole is formed in the center of the motor connecting end and penetrates through the connecting base and the connecting shaft, and a spline is arranged in an inner cavity in the upper portion of the motor shaft through hole and matched with the motor shaft; the diameter of the base through hole is consistent with that of the motor shaft through hole, and the base is detachably connected with the connecting seat.

Description

Technical Field

[0001] The utility model relates to the field of motor testing, in particular to a motor testing coupling. Background Art

[0002] When the motor is tested on a bench, a coupling is required to connect the motor shaft to the end being tested.

[0003] The prior art with the existing patent announcement number CN 214750708 U divides the coupling into a first half coupling and a second half coupling, thereby solving the problem of complicated installation and release operations of the coupling.

[0004] But usually there are the following requirements for couplings:

[0005] Connection stability: During motor testing, it is necessary to ensure that the connection between the motor shaft and the test bench is stable to avoid test errors or equipment damage caused by unstable connection.

[0006] Alignment accuracy: The alignment accuracy between the motor shaft and the test bench directly affects the accuracy of the test results, so a structure is required to ensure high-precision alignment.

[0007] Installation convenience: The connection and removal of the motor to the test bench needs to be convenient and quick to improve test efficiency and reduce maintenance time.

[0008] At the same time, the mold change cost of the coupling is relatively high. How to reduce the mold change cost while meeting the above requirements is a technical problem that needs to be solved. Summary of the invention

[0009] In order to solve the above technical problems, the utility model proposes a motor test coupling, comprising a base and a motor connection end, wherein the base is connected to a test bench, and the motor connection end is connected to a motor shaft;

[0010] The bottom surface of the base is a plum blossom surface, and the plum blossom surface is connected to the plum blossom pad of the test bench;

[0011] A spline is arranged on the top surface of the motor connection end to cooperate with the motor shaft.

[0012] Furthermore, a convex ring is arranged on the outer periphery of the top surface of the base, and an annular convex block is arranged on the bottom surface of the motor connecting shaft, and the annular convex block fits in the inner cavity of the convex ring.

[0013] Furthermore, the base and the motor connection end are fixed by screws.

[0014] Furthermore, a plurality of screw holes are arrayed on the annular protrusion, a plurality of screw holes are arrayed on the top surface of the base, the screw holes match the screw holes, and the screws pass through the screw holes and the screw holes.

[0015] Furthermore, a base through hole is arranged in the center of the base, a motor shaft through hole is arranged in the center of the motor connection end, the base through hole and the motor shaft through hole have the same diameter, and the spline is located at the upper part of the motor shaft through hole.

[0016] Furthermore, a circumferential array of plum blossom keys is provided on the plum blossom surface.

[0017] Beneficial Effects

[0018] Reduce mold change costs: The split design of the base and motor connection end can effectively reduce mold change costs.

[0019] Improve connection stability: By designing the base into a plum blossom surface and cooperating with the plum blossom pad of the test bench, it can provide a better contact area and friction, thereby improving the stability of the connection.

[0020] Ensure the centering accuracy: A spline is set on the top surface of the motor connection end, which cooperates with the motor shaft to accurately position the motor shaft and ensure the centering accuracy between the motor shaft and the test bench.

[0021] Enhanced installation convenience: The spline structure is usually designed with easy disassembly features, making the connection and disassembly of the motor and the test bench more convenient and improving the efficiency of installation.

[0022] Reduce wear: Compared with the traditional keyway structure, the spline structure can reduce wear to a certain extent and extend the service life of the coupling.

[0023] Improved test accuracy: Due to the improved stability of the connection and the improved centering accuracy, it can ensure that the performance of the motor during the test is more realistic, thereby improving the accuracy and reliability of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the base structure of the motor test coupling;

[0025] Figure 2 This is a structural diagram of the base of the motor test coupling from another perspective;

[0026] Figure 3 It is a schematic diagram of the motor connection end structure of the motor test coupling;

[0027] Figure 4 This is a schematic diagram of the structure of the motor connection end of the motor test coupling from another perspective;

[0028] Figure 5 It is a structural diagram of the motor coupling. Specific embodiments

[0029] The utility model is described in detail below in conjunction with the embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several adjustments and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0030] like Figure 1-5 As shown, the utility model discloses a motor test coupling, comprising a base 1 and a motor connection end 2, wherein the base 1 is connected to a test bench, and the motor connection end 2 is connected to a motor shaft;

[0031] The bottom surface of the base 1 is a plum blossom surface, the plum blossom surface is connected to the plum blossom pad of the test bench, and a base through hole 103 is provided in the center of the base 1;

[0032] The motor connection end 2 comprises a connection seat 21 and a connection shaft 22 which are coaxially arranged. A motor shaft through hole 204 is arranged at the center of the motor connection end 2. The motor shaft through hole 204 passes through the connection seat 21 and the connection shaft 22. A spline 201 is arranged in the upper inner cavity of the motor shaft through hole 204 to cooperate with the motor shaft.

[0033] The base through hole 103 and the motor shaft through hole 204 have the same diameter, and the base 1 is detachably connected to the connecting seat 21 .

[0034] Preferably, a convex ring 104 is provided on the periphery of the top surface of the base 1 , and an annular convex block 202 is provided on the bottom surface of the connecting seat 21 , and the annular convex block 202 fits in the inner cavity of the convex ring 104 .

[0035] Preferably, the outer diameter of the connecting seat 21 is larger than that of the connecting shaft 22, and the connecting seat 21 and the base 1 are fixed by screws.

[0036] Preferably, the connection seat 21 is provided with a plurality of screw holes 203, and the base 1 is provided with a plurality of screw holes 102;

[0037] The screw hole 102 matches the screw hole 203 , and the screw passes through the screw hole and the screw hole 102 .

[0038] Preferably, a circumferential array of plum blossom keys 101 is provided on the plum blossom surface.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A motor test coupling, characterized in that: It comprises a base (1) and a motor connection end (2), wherein the base (1) is connected to a test bench, and the motor connection end (2) is connected to a motor shaft; The bottom surface of the base (1) is a plum blossom surface, the plum blossom surface is connected to the plum blossom pad of the test bench, and a base through hole (103) is provided in the center of the base (1); The motor connection end (2) comprises a connection seat (21) and a connection shaft (22) which are coaxially arranged, a motor shaft through hole (204) is arranged at the center of the motor connection end (2), the motor shaft through hole (204) passes through the connection seat (21) and the connection shaft (22), and a spline (201) is arranged in the upper inner cavity of the motor shaft through hole (204) to cooperate with the motor shaft; The base through hole (103) and the motor shaft through hole (204) have the same diameter, and the base (1) and the connecting seat (21) are detachably connected.

2. A motor test coupling according to claim 1, characterized in that: A convex ring (104) is provided on the outer periphery of the top surface of the base (1), and an annular convex block (202) is provided on the bottom surface of the connecting seat (21), wherein the annular convex block (202) fits into the inner cavity of the convex ring (104).

3. A motor test coupling according to claim 2, characterized in that: The outer diameter of the connecting seat (21) is larger than that of the connecting shaft (22), and the connecting seat (21) and the base (1) are fixed by screws.

4. A motor test coupling according to claim 3, characterized in that: The connecting seat (21) has a plurality of screw holes (203) arranged in an array, and the base (1) has a plurality of screw holes (102) arranged in an array; The screw hole (102) matches the screw hole (203), and the screw passes through the screw hole and the screw hole (102).

5. The motor test coupling according to claim 1, characterized in that: The circumferential array of plum blossom keys (101) is provided on the plum blossom surface.

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