Motor commutator detection fixture

Abstract

The utility model discloses motor commutator detection frock, including base, rotary support mechanism, support and automatic detection mechanism, rotary support mechanism rotation is connected on the base, and the support is fixed on the base, and the automatic detection mechanism is installed on the support, and the automatic detection mechanism is located the top of rotary support mechanism and is used for detecting motor commutator, and the automatic detection mechanism includes: ohmmeter, detection probe, mounting ring, guide rod and spring, and the ohmmeter is installed on the top of support, and the ohmmeter is connected with two detection probes through the wire, and the number of mounting ring is two, and every detection probe all penetrates an mounting ring, and the both sides of every mounting ring all are fixed with guide rod, and the guide rod penetrates the support and is connected with sliding, and the upper half segment outside of every guide rod all is provided with a spring, and one end of spring is fixed with guide rod and the other end is fixed with support. The utility model discloses convenient operation can carry out detection to the insulating property between multiple commutator segments on commutator fast, and the working efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of motor commutator technology, and in particular to a testing fixture for motor commutators. Background Technology

[0002] The commutator is a core component of a motor. After production, various tests are required, one of which is insulation testing. Multiple commutator segments are distributed on the outer side of the commutator. The insulation between adjacent segments is easily compromised due to various factors. Therefore, insulation testing between any two adjacent commutator segments is necessary. Currently, testing is mostly done manually using an ohmmeter. Due to the large number of commutator segments, this requires constantly switching positions while manually testing each segment, paying attention to the contact condition of the meter, and keeping the hand on the ohmmeter while reading the data. This is inconvenient for data recording, inefficient, and leads to low work efficiency. Therefore, there is an urgent need to develop a commutator testing fixture to overcome the shortcomings of current applications and meet current requirements. Utility Model Content

[0003] The purpose of this invention is to provide a testing fixture for motor commutators to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A motor commutator testing fixture includes a base, a rotating support mechanism, a bracket, and an automatic testing mechanism. The rotating support mechanism is rotatably connected to the base and supports the motor commutator. The bracket is fixed to the base. The automatic testing mechanism is mounted on the bracket and is located above the rotating support mechanism for testing the motor commutator. The automatic testing mechanism includes an ohmmeter, a test probe, a mounting ring, a guide rod, and a spring. The ohmmeter is mounted on the top of the bracket and is connected to two test probes via wires. There are two mounting rings, and each test probe passes through one mounting ring. Guide rods are fixed on both sides of each mounting ring, passing through and slidably connected to the bracket. A spring is provided on the outer side of the upper half of each guide rod, with one end of the spring fixed to the guide rod and the other end fixed to the bracket.

[0006] Preferably, the rotating support mechanism includes a support shaft, a baffle plate, and a tightening nut. The support shaft is rotatably connected to the base, the baffle plate is fixed on the support shaft, and the right end of the support shaft is detachably connected to the tightening nut by a thread.

[0007] Preferably, a rotating handle is fixed to the left end of the support shaft.

[0008] Preferably, each of the mounting rings is fitted with a clamping bolt that screws into it to clamp the detection probe.

[0009] The beneficial effects of this utility model are as follows: When using this motor commutator testing fixture, first unscrew the tightening nut, then insert the motor commutator onto the support shaft, and then tighten the tightening nut again to clamp the motor commutator onto the retaining plate. The spring force ensures good contact between the end of the testing probe and the commutator segments. Then, manually rotating the handle drives the support shaft to rotate, which in turn drives the motor commutator to rotate. The motor commutator then drives the multiple commutator segments to rotate, allowing the two testing probes to contact two adjacent commutator segments respectively. The reading on the ohmmeter is then observed to determine the insulation effect between the current two commutator segments. Data can also be manually recorded. After testing one pair of commutator segments, the rotating support mechanism is rotated to drive the motor commutator to rotate again, and the next pair of commutator segments is tested. This process is repeated multiple times until all two adjacent commutator segments on the motor commutator have been tested. In summary, this utility model is convenient to operate and can quickly test the insulation between multiple commutator segments, resulting in higher work efficiency. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0011] Figure 2 This is a schematic diagram of the usage state of this utility model.

[0012] Figure 3 This is a partial structural diagram of the present invention. Figure 1 .

[0013] Figure 4 This is a partial structural diagram of the present invention. Figure 2 .

[0014] Legend:

[0015] 1. Base; 2. Rotary support mechanism; 201. Support shaft; 2011. Rotary handle; 202. Baffle; 203. Tightening nut; 3. Bracket; 4. Automatic detection mechanism; 401. Ohmmeter; 402. Detection probe; 403. Mounting ring; 4031. Clamping bolt; 404. Guide rod; 405. Spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] Specific implementation examples are given below.

[0018] See Figures 1-4 In this embodiment of the utility model, the motor commutator testing fixture includes a base 1, a rotating support mechanism 2, a bracket 3, and an automatic testing mechanism 4. The rotating support mechanism 2 is rotatably connected to the base 1 and is used to support the motor commutator. The bracket 3 is fixed to the base 1. The automatic testing mechanism 4 is mounted on the bracket 3 and is located above the rotating support mechanism 2 and is used to test the motor commutator. The rotating support mechanism 2 includes a support shaft 201, a baffle 202, and a tightening nut 203. The support shaft 201 is rotatably connected to the base 1 and is used to support the motor commutator. The diameter of the support shaft 201 is the same as the inner diameter of the motor commutator and they can slide against each other. The baffle 202 is fixed on the support shaft 201. The right end of the support shaft 201 is detachably connected to the tightening nut 203 by a thread. The left end of the support shaft 201 is fixed with a rotating handle 2011. The handle 2011 allows for human operation to rotate the support shaft 201. The automatic detection mechanism 4 includes an ohmmeter 401, a detection probe 402, a mounting ring 403, a guide rod 404, and a spring 405. The ohmmeter 401 is mounted on the top of the bracket 3. The ohmmeter 401 is connected to two detection probes 402 via wires. There are two mounting rings 403, with each detection probe 402 passing through one mounting ring 403. The mounting ring 403 contacts the outer insulating layer of the detection probe 402. Each mounting ring 403 has a clamping bolt 4031 screwed into it to clamp the detection probe 402. Guide rods 404 are fixed on both sides of each mounting ring 403. The guide rods 404 pass through the bracket 3 and are slidably connected to it. A spring 405 is provided on the outer side of the upper half of each guide rod 404. One end of the spring 405 is fixed to the guide rod 404, and the other end is fixed to the bracket 3.

[0019] Working principle: When using this motor commutator testing fixture, first unscrew the tightening nut 203, then insert the motor commutator onto the support shaft 201, and then tighten the tightening nut 203 to clamp the motor commutator onto the baffle 202. The elastic force of the spring 405 ensures good contact between the end of the testing probe 402 and the commutator segments of the motor commutator. Then, rotate the rotary handle 2011 to drive the support shaft 201 to rotate, which in turn drives the motor commutator to rotate. The motor commutator then drives the multiple commutator segments on its exterior to rotate, so that the two testing probes 402 contact two adjacent commutator segments respectively. The reading on the ohmmeter 401 is then observed to determine the insulation effect between the current two commutator segments. The data can also be manually recorded. After testing a pair of commutator segments, rotate the rotary support mechanism 2 to drive the motor commutator to rotate, and then test the next pair of commutator segments. This operation is repeated multiple times until any two adjacent commutator segments on the motor commutator have been tested.

[0020] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A commutator bar detection tool for an electric machine, the tool comprising: The system includes a base (1), a rotating support mechanism (2), a bracket (3), and an automatic detection mechanism (4). The rotating support mechanism (2) is rotatably connected to the base (1) and is used to support the motor commutator. The bracket (3) is fixed to the base (1). The automatic detection mechanism (4) is mounted on the bracket (3) and is located above the rotating support mechanism (2) and is used to detect the motor commutator. The automatic detection mechanism (4) includes: an ohmmeter (401), a detection probe (402), a mounting ring (403), a guide rod (404), and a spring (405). The ohmmeter (401) is mounted on the top of the bracket (3). The ohmmeter (401) is connected to two detection probes (402) by wires. There are two mounting rings (403). Each detection probe (402) passes through a mounting ring (403). Each mounting ring (403) has a guide rod (404) fixed on both sides. The guide rod (404) passes through the bracket (3) and is slidably connected to it. Each guide rod (404) has a spring (405) on the outer side of the upper half. One end of the spring (405) is fixed to the guide rod (404) and the other end is fixed to the bracket (3).

2. The motor commutator testing fixture according to claim 1, characterized in that, The rotating support mechanism (2) includes: a support shaft (201), a baffle (202) and a tightening nut (203). The support shaft (201) is rotatably connected to the base (1). The baffle (202) is fixed on the support shaft (201). The right end of the support shaft (201) is detachably connected to the tightening nut (203) by a thread.

3. The motor commutator testing fixture according to claim 2, characterized in that, A rotating handle (2011) is fixed to the left end of the support shaft (201).

4. The motor commutator testing fixture according to claim 1, characterized in that, Each of the mounting rings (403) is fitted with a clamping bolt (4031) that screws into it to clamp the detection probe (402).

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