CN103344890A - Automatic detecting device for dielectric strength among commutator segments - Google Patents

Abstract

The invention relates to an automatic detection device for the dielectric strength between commutator plates. The invention comprises an overall machine base, a probe assembly and a commutator clamping assembly, wherein the probe assembly and the commutator clamping assembly are vertically installed in the overall machine base. The overall machine base assembly includes the overall frame and aluminum door. The probe assembly includes a first stepping motor installed horizontally at the rear, and a motor fixing member for installing the first stepping motor on the frame. The commutator clamping assembly includes a second stepping motor, a motor fixing piece for fixing the second stepping motor, a commutator clamp, a clamp motor, and a coupling for connecting the commutator clamp and the clamp motor. The invention can automatically complete the detection of the commutator without manual operation in the detection process.

Description

Automatic detection device for dielectric strength between commutator plates

technical field

The invention belongs to the field of testing equipment for the dielectric strength of commutator slices, and in particular relates to an automatic detector for the dielectric strength between commutator slices.

Background technique

As the transportation hub of the motor's external electrical energy input and motor mechanical energy output, the commutator's own quality directly affects the performance and life of the motor. Whether the dielectric strength between the commutator slices is qualified or not is related to whether the commutator can complete the above mission. Therefore, before the commutator is installed on the motor rotor, the dielectric strength between the plates must be tested. Since there are many specifications of the commutator, the specific parameters also have relatively large changes, which requires the detector to have a certain flexibility to adapt to the dielectric strength detection between the commutator plates of various specifications.

Contents of the invention

The object of the present invention is to provide an automatic detector for the dielectric strength between plates of a motor commutator to address the deficiencies of the prior art.

The invention comprises an overall machine base, a probe assembly and a commutator clamping assembly, wherein the probe assembly and the commutator clamping assembly are vertically installed in the overall machine base.

The overall machine base assembly includes an integral frame and an aluminum door.

The probe assembly includes a first stepper motor installed horizontally at the rear, a motor fixture for installing the first stepper motor on the frame; a probe for detection and a probe reversing device They are installed together on the probe base, and the probe is fixed by bolts. The probe base is installed on the first screw slider through screws. The first screw slider cooperates with the guide rails on both sides, and one end of the screw passes through the The first coupling is connected with the first stepping motor, and the other end is installed in the first bearing.

The commutator clamping assembly includes a second stepping motor, a motor fixing member for fixing the second stepping motor, a commutator clamp, a clamp motor, and a coupling for connecting the commutator clamp and the clamp motor The fixture motor is installed on the fixture support, and the fixture support is fixed on the second lead screw slider through bolts, and the second lead screw slider cooperates with the guide rails on both sides, and one end of the lead screw passes through the second shaft coupling and The second stepping motor is connected, and the other end is installed in the second bearing.

Beneficial effects of the present invention:

1) The detection of the commutator can be completed automatically, and no manual operation is required during the detection process.

2) The tester has good adaptability and can meet the test requirements of multi-standard commutators.

3) The detection parameters of the detector are easy to adjust and the detection accuracy is high.

Description of drawings

Fig. 1 is the general structural diagram of the present invention;

Fig. 2 is a schematic structural view of the probe assembly of the present invention;

Fig. 3 is a structural schematic diagram of the clamping assembly of the present invention;

Fig. 4 is a schematic view of the whole machine base of the present invention;

Fig. 5 is a schematic diagram of changing the pitch of the probes of the present invention;

Fig. 6 is a schematic diagram of the working process of the present invention

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing.

As shown in Figure 1, the general structure of the invention is made up of control board 1, clamping assembly 2, display screen 3, probe assembly 4, frame assembly 5. The clamping assembly and the probe assembly are installed on the same plane at 90 degrees.

As shown in Figure 2, the probe assembly 4 includes a lead screw to install a fixed bearing 6, a probe 7 for detection, a lead screw 8 installed at the bottom to make the probe move horizontally, and the probe seat is installed to slide with the lead screw. The bolt 9 of the block platform, the lead screw slider 10 fixed on the probe base, the probe base 11 for installing the probe, the screw 12 for fixing the probe connector on the upper part of the probe base, installed on the probe base The probe connector 13, the nut 14 used to tighten the fixing screw, the bearing 15 used to install the screw, the coupling 16 installed on the front end of the motor to connect the motor and the screw, installed on the upper part of the motor for fixing The motor mount 17 of the motor, the motor 18.

As shown in Figure 3, the clamping assembly 2 includes a stepper motor 19, a shaft coupling 20 installed on the driving motor, a bearing 21 for installing the screw, and a screw connected to the stepper motor through the coupling 22. The bolt 23 connecting the fixture seat and the lead screw slider, the fixture seat 24 for installing the fixture motor, the lead screw slider 25 installed on the lead screw, the bearing 26 for installing the lead screw, and the fixture installed on the fixture seat Motor 27, the coupling 28 that connects fixture and fixture motor, fixture 29.

As shown in FIG. 4 , the overall frame includes an aluminum plate 30 covering the surface, a skeleton support 31 , and frame screws 32 installed at the bottom.

As shown in Figure 5, according to the distance between the insulating sheets of the commutator, through the protruding pieces on both sides of the probe connector, the probe is rotated to make the two probes stagger at a certain angle, thereby changing the projection of the two probes The distance on the plane, so as to achieve the change of probe spacing.

As shown in Figure 6, when working, the commutator is first clamped on the clamping fixture, and the stepping motor drives the lead screw to rotate so that the entire fixture moves down and stops at the working position. At the same time, the probe assembly The motor starts to work, and drives the lead screw to rotate so that the probe moves forward to the working position and stops. When the probe touches the commutator continuous insulation sheet, it starts to energize and detect. When the two pieces pass the inspection, the stepper motor on the fixture Start to work, turn to the next insulating sheet, and repeat the previous step, and cycle like this until all the insulating sheets are tested.

Claims (1)

1. automatic detector for dielectric strength between commutator segments, by overall support, probe assembly, commutator clamp assembly to be formed, and its middle probe assembly and commutator clamp that assembly is orthogonal to be installed in the overall support;

Described overall support assembly comprises whole skeleton and aluminium sheet door;

Described probe assembly comprises that level is installed on first stepper motor at rear portion, for the motor fixture that first stepper motor is installed on the support; For detection of probe and probe reversing arrangement be loaded on the probe base jointly, and by bolt with probe stationary, probe base is installed on the first screw mandrel slide block by screw, the guide rail of the first leading screw slide block and both sides cooperates, leading screw one end wherein links to each other with first stepper motor by first shaft coupling, and an other end is installed in the clutch shaft bearing;

Described commutator clamps assembly and comprises second stepper motor, fixes the motor fixture of second stepper motor, the commutator anchor clamps, and clamp motor is for the shaft coupling that connects commutator anchor clamps and clamp motor; Clamp motor is installed on the clamp mount, clamp mount is by being bolted on the second leading screw slide block, the guide rail of the second leading screw slide block and both sides cooperates, and leading screw one end wherein links to each other with second stepper motor by second shaft coupling, and the other end is installed in second bearing.

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