CN211652943U

CN211652943U - Motor stalling test fixture and test device

Info

Publication number: CN211652943U
Application number: CN201922304236.5U
Authority: CN
Inventors: 曾立英; 黄欣宇; 苏邦伟; 刘璇; 吴珂; 郑玲; 甘浩
Original assignee: National Quality Supervision And Inspection Center On Industrial And Mining Electric Drive Vehicle (hunan)
Current assignee: National Quality Supervision And Inspection Center On Industrial And Mining Electric Drive Vehicle (hunan)
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-10-09
Anticipated expiration: 2029-12-20

Abstract

The utility model discloses a motor locked-rotor test fixture and a test device, the motor locked-rotor test fixture comprises a first clamping part and a second clamping part, and a clamping area for clamping a motor shaft is formed between the first clamping part and the second clamping part; the both ends of second clamping part all are equipped with the connecting rod, the one end and the second clamping part of connecting rod are connected, and the other end is connected with the motor terminal surface when using. The utility model provides an experimental fixture fixes the motor shaft at the centre gripping region through fixed first clamping part and second clamping part, makes the motor shaft remain motionless. Thereby carrying out the motor locked-rotor test.

Description

Motor stalling test fixture and test device

Technical Field

The utility model belongs to motor detection device, concretely relates to motor stalling test fixture and test device.

Background

The motor locked-rotor test is an essential test item of a motor delivery test, mainly aims at measuring locked-rotor stator current and locked-rotor torque of a motor at rated voltage and rated frequency, is two main indexes for examining the performance of an asynchronous motor, provides relevant measured data for improving design and process, and provides help for repairing the motor.

At present, most manufacturers clamp the motor shaft directly by using the pipe orifice clamp, so that potential safety hazards exist, the operation is inconvenient, or a special clamp with a specific size is used for each type of motor, a plurality of sets of clamps are needed, and the use and maintenance cost is higher.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the defect is overcome, and the locked rotor experiment clamp suitable for the motors of various models is provided.

The utility model adopts the technical proposal that: a motor locked rotor test clamp comprises a first clamping part and a second clamping part, wherein a clamping area for clamping a motor shaft is formed between the first clamping part and the second clamping part; the both ends of second clamping part all are equipped with the connecting rod, the one end and the second clamping part of connecting rod are connected, and the other end is connected with the motor terminal surface when using.

In the above scheme, fix first clamping part on ground or other devices earlier, place the motor shaft in the centre gripping region again to it is fixed with the second clamping part through the connecting rod, thereby fix the motor shaft, can carry out the motor stalling test.

Preferably, the first clamping part is a clamping plate, the second clamping part is a pin shaft, the middle part of the clamping plate is bent to enable the inner side of the clamping plate to form a hollow groove, pin holes are formed in the two ends of the clamping plate, and the pin shaft penetrates through the pin holes to be placed on the clamping plate, so that a clamping area for clamping a motor shaft is formed between the clamping plate and the pin shaft; and two ends of the clamping plate are respectively fixed on the bracket through bolts.

Set up first clamping part into splint in this scheme, the second clamping part sets up to the round pin axle, simple structure, convenient operation.

Preferably, the clamping plate and/or the surface of the pin shaft, which clamps the motor shaft, is a tooth surface, so that the clamping effect is increased.

Preferably, the middle part of the clamping plate is provided with a V-shaped plate, and two ends of the clamping plate are provided with vertical plates; the pin shaft can move up and down along the pin hole.

In the above scheme, the pin shaft can move up and down along the pin hole, so that the size of the clamping area is changed, and the motor clamping device is suitable for motors of different models.

Preferably, the pin hole is an elongated pin hole provided on the vertical plate.

Preferably, both ends of round pin axle all are equipped with first through-hole, the motor terminal surface is equipped with a plurality of second through-holes, each the connecting rod all passes first through-hole, second through-hole and links together motor terminal surface and round pin axle, and the both ends of each connecting rod all with nut threaded connection. The arrangement is beneficial to the disassembly and assembly of the clamp.

The utility model also provides a motor stalling test device, include the motor and install at the above-mentioned motor stalling test fixture of motor terminal surface.

The utility model has the advantages that:

1. the motor locked rotor test fixture has simple structure, low cost and strong safety;

2. the utility model discloses a motor stalling test fixture is applicable in various types of motors, and the commonality is strong.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of an embodiment of the present invention in combination with an electric machine;

FIG. 3 is a schematic view of an embodiment of the present invention in combination with a bracket;

fig. 4 is a schematic view of a splint according to an embodiment of the present invention.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1 to 4, a motor stalling test fixture comprises a clamp plate 1 forming a first clamping part and a pin shaft 2 forming a second clamping part, wherein the middle part of the clamp plate 1 is bent to form a hollow groove at the inner side of the clamp plate, and pin holes 3 are formed at two ends of the clamp plate 1; the pin shaft 2 penetrates through the pin hole 3 and is placed on the clamping plate 1, and a clamping area for clamping the motor shaft 6 is formed between the clamping plate 1 and the pin shaft 2; the two ends of the pin shaft 2 are both provided with connecting rods 4, one end of each connecting rod is connected with the pin shaft 2, and the other end of each connecting rod is connected with the end surface 8 of the motor when in use; when in use, the two ends of the splint 1 are sleeved in the bracket 9 and fixed by the screw.

Specifically set up to, the both ends of round pin axle 2 all are equipped with first through-hole 5, and motor end face 8 is equipped with a plurality of second through-holes 7 to make the round pin axle can fix at 8 different positions of motor end face, thereby press from both sides the motor shaft 6 of tight different models. Each connecting rod 4 all passes first through-hole 5, second through-hole 7 and links together motor end face 8 and round pin axle 2, thereby the both ends of each connecting rod 4 all fix round pin axle 2 with nut threaded connection.

When the device is used, two ends of the splint 1 are fixed in the support 9, the support 9 can be fixed on the ground or other devices, so that the splint 1 is fixed during testing, and in addition, the splint 1 can also be directly fixed on the end surface 8 of the motor like the pin shaft 2; then the motor shaft 6 is placed in the empty groove on the inner side of the clamping plate 1, one end of the connecting rod 4 at the two ends of the pin shaft 2 is fixed on the pin shaft, the other end of the connecting rod is fixed on the end face of the electrode, and the pin shaft 2 is fixed, so that the motor shaft 6 is fixed for a locked rotor experiment.

In order to adapt to motors of different models, the middle part of the clamping plate 1 is bent into a V-shaped plate 11, and two ends of the clamping plate are vertical plates 12; the pinhole 3 is for setting up the rectangular shape pinhole that just has certain length on vertical board 12, and round pin axle 2 can follow vertical direction and move in pinhole 3, and one of them connecting rod can be unchangeable in the position of motor terminal surface 8 this moment, and one of them second through-hole 7 at motor terminal surface 8 of one end of another connecting rod moves another second through-hole 7 to fix round pin axle 2.

In this embodiment, in order to increase the clamping effect, the surfaces of the clamping plate 1 and/or the pin shaft 2 that clamp the motor shaft are tooth surfaces.

In addition, still provide a motor stalling test device, including the motor with install at the foretell motor stalling test fixture of motor terminal surface.

Claims

1. The motor locked rotor test clamp is characterized by comprising a first clamping part and a second clamping part, wherein a clamping area for clamping a motor shaft (6) is formed between the first clamping part and the second clamping part; the both ends of second clamping part all are equipped with connecting rod (4), the one end and the second clamping part of connecting rod (4) are connected, and the other end is connected with motor terminal surface (8) when using.

2. The motor locked rotor test clamp as claimed in claim 1, wherein the first clamping portion is a clamping plate (1), the second clamping portion is a pin shaft (2), the middle portion of the clamping plate (1) is bent to form a hollow groove on the inner side of the clamping plate, pin holes (3) are formed in both ends of the clamping plate, and the pin shaft (2) penetrates through the pin holes (3) to be placed on the clamping plate, so that a clamping area for clamping the motor shaft (6) is formed between the clamping plate (1) and the pin shaft (2); the two ends of the clamping plate (1) are respectively fixed on the bracket (9) through bolts.

3. The motor stalling test fixture as claimed in claim 2, wherein the surface of the clamping plate (1) and/or the pin (2) clamping the motor shaft (6) is a tooth surface.

4. The motor stalling test fixture according to claim 2, wherein the middle part of the clamping plate (1) is provided with a V-shaped plate (11), and both ends of the clamping plate are provided with vertical plates (12); the pin shaft (2) can move up and down along the pin hole (3).

5. The motor stalling test fixture according to claim 4, wherein the pin hole (3) is an elongated pin hole provided in the vertical plate.

6. The motor stalling test fixture according to any one of claims 2 to 5, wherein a first through hole (5) is formed in each of two ends of the pin shaft (2), a plurality of second through holes (7) are formed in the motor end surface (8), each connecting rod (4) penetrates through the first through hole (5) and the second through hole (7) to fixedly connect the motor end surface (8) and the pin shaft (2), and each connecting rod (4) is in threaded connection with a nut at each of two ends.

7. A motor locked-rotor test device is characterized by comprising a motor and the motor locked-rotor test clamp which is arranged on the end surface (8) of the motor and is used for testing the locked-rotor of the motor according to any one of claims 1-6.