CN201274431Y - Special shaped slot wedge for motor rotor - Google Patents

Abstract

The utility model discloses a profiled slot wedge of a motor rotor. The section of the slot wedge (1) is an inverted T-shaped structure; wherein, the width of a mouth (2) of the inverted T-shaped section is 0.1 to 0.15mm less than the width of a tooth rabbet; and the height of the mouth (2) is 0.1 to 0.2mm larger than the height of the tooth rabbet. In the structure adopted by the utility model, the section structure of the slot wedge is changed, so the excircle of the rotor can be continuously turned, and the burrs and iron chips which are produced by the continuous turning of the excircle of the rotor can be totally cleaned up, and the time spent on cleaning up burrs and iron chips can be saved, and thereby, not only the labor productivity can be increased, but also the quality of the motor can be greatly improved.

Description

Rotor abnormity slot wedge

Technical field

The utility model relates to a kind of motor technology, especially relates to a kind of rotor abnormity slot wedge.

Background technology

Rotor is the critical piece of motor, by armature, parts such as commutator (claiming commutator again) and rotating shaft constitute, wherein armature is made up of armature core and armature coil winding two parts, armature core is built up by rotor punching, be uniform-distribution with teeth groove at its cylindrical place, the armature coil winding then is embedded in these grooves, motor slot wedge is the parts that are used for fastening armature coil winding, the cross section of at present traditional slot wedge is the trapezium structure (see figure 1), therefore at the outer bowlder of cutting rotor, owing to interrupted cut, cause the rotor punching burr to pour the teeth groove mouth into, cause cleaning difficulty, or cause the rotor winding to damage accidentally during cleaning, operation brings hidden danger to motor.

Summary of the invention

The purpose of this utility model provides a kind of rotor abnormity slot wedge, can solve the outer bowlder of car rotor is full of punching teeth groove mouth because of the interrupted cut burr problem.

The problem of the required solution of the utility model realizes by the following technical solutions: the cross section of described slot wedge is inverse-T-shaped structure, wherein inverse-T-shaped cross section oral area width dimensions is than the little 0.1-0.15mm of teeth groove mouth width, and the oral area height dimension is than the big 0.1-0.2mm of teeth groove open height.

The said structure that the utility model adopts, by changing the cross section structure of slot wedge, be formed on the continuous cutting of the outer bowlder of turning rotor, fundamentally solve the outer bowlder of car rotor because the problem that burr that interrupted cut causes and iron filings are difficult to clear up, saved the time of cleaning rotor burr and iron filings, not only raise labour productivity, and the product quality of motor is enhanced.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described further:

Figure 1 shows that traditional slot wedge cross section structure schematic diagram

Figure 2 shows that the cross section structure schematic diagram of slot wedge in the utility model

Embodiment

As shown in Figure 2, the cross section of the described slot wedge 1 of this rotor abnormity slot wedge is inverse-T-shaped structure, compare Fig. 1, rotor slot wedge increases a boss in order to fill the space of rotor tooth notch on the basis of original trapezoid cross section, be formed on the continuous cutting of the outer bowlder of turning rotor, slot wedge generally can be made of epoxy plate, wherein inverse-T-shaped cross section oral area 2 width dimensions are than the little 0.1-0.15mm of teeth groove mouth width, oral area 2 height dimensions are than the big 0.1-0.2mm of teeth groove open height, and slot wedge 1 can compress fastening motor coil winding 3.Be appreciated that in the utility model,,, must be considered as having fallen into protection range of the present utility model so long as filled the space of rotor tooth notch no matter the concrete size in the inverse-T-shaped cross section of slot wedge is made variations in detail how.

Claims (1)

1, a kind of rotor abnormity slot wedge, it is characterized in that: the cross section of described slot wedge is inverse-T-shaped structure, and wherein inverse-T-shaped cross section oral area width dimensions is than the little 0.1-0.15mm of teeth groove mouth width, and the oral area height dimension is than the big 0.1-0.2mm of teeth groove open height.

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