CN204179868U - For compressing the ring pressing construction of stator punching - Google Patents

Abstract

The utility model discloses a kind of ring pressing construction for compressing stator punching, comprises circle body and tooth pressing plates, and the inner ring of described circle body processes groove, described tooth pressing plates circumferentially uniform welding in the groove of circle body; Described tooth pressing plates is trapezoidal, and the height of its low side is less than the degree of depth of groove, and its high-end height is greater than the degree of depth of groove, and described low side is the one end be connected with groove; The contact-making surface of described tooth pressing plates and groove is plane, is inclined-plane with the contact-making surface of punching.The utility model appropriate design also optimizes ring pressing construction form, reduces processing cost and manufacture difficulty, reduces because laminating the teeth portion deflection caused.

Description

Press ring structure for pressing stator punching

technical field

The utility model relates to a pressure ring structure form for pressing stator punching sheets, which is particularly suitable for medium and large motors for reducing the deformation of stator iron core teeth to reduce the vibration noise of the motor, and belongs to the technical field of motor manufacturing.

Background technique

In order to avoid the problem of large motor vibration and noise caused by the expansion of the teeth of the stator core, the large deformation of the teeth, or the insufficient lamination coefficient of the outer ring of the iron core, etc., the two ends of the stator core are generally used to compress the punching ring. Teeth and yoke.

At present, there are two types of stator pressure rings commonly used, one is to directly process the teeth on the pressure ring, as shown in Figure 1; the other is to make the pressure ring into a whole ring, and weld the tooth pressure piece to the pressure ring. ,as shown in picture 2. These two press ring structures have their own advantages and disadvantages. The former has high manufacturing costs, and the latter press ring cannot directly contact the punch yoke. At the same time, it is necessary to ensure the size of its outer diameter when welding the tooth press.

Utility model content

In view of the above problems, the applicant, after research and improvement, provides a pressure ring structure for compressing the stator punching that has a simple structure, low processing cost and can reduce the deformation of the teeth, effectively avoiding the shortcomings of the existing pressure ring .

The technical scheme of the utility model is as follows:

A pressing ring structure for pressing stator punching pieces, including a ring body and a tooth pressing piece, the inner ring of the ring body is processed with a groove, and the tooth pressing piece is evenly welded to the groove of the ring body along the circumferential direction Inside; the tooth pressing piece is trapezoidal, the height of its low end is smaller than the depth of the groove, the height of its high end is greater than the depth of the groove, and the low end is the end connected with the groove.

Its further technical solution is: the contact surface between the tooth pressing piece and the groove is a plane, and the contact surface with the punching piece is an inclined surface.

The beneficial technical effect of the utility model is:

The utility model rationally designs and optimizes the structural form of the pressure ring, reduces the processing cost and manufacturing difficulty, and reduces the deformation of the tooth portion caused by overlapping.

The advantages of the present utility model will be provided in the description of the following specific embodiment part, and part will become apparent from the following description, or be understood through the practice of the present utility model.

Description of drawings

Figure 1 is the first commonly used stator pressure ring form.

Figure 2 is the second commonly used stator pressure ring form.

Fig. 3 is a schematic diagram of the ring body structure of the utility model.

Fig. 4 is a structural schematic diagram of the tooth pressing sheet of the present invention.

Fig. 5 is a schematic diagram of the overall structure of the pressure ring of the present invention.

Detailed ways

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further.

The pressing ring of the present utility model is divided into two parts, including a ring body 1 as shown in FIG. 3 , and a tooth pressing piece 2 as shown in FIG. 4 . The inner ring of the ring body 1 is processed with a groove for welding the tooth pressure piece 2 while constraining the outer diameter size; the tooth pressure piece 2 is trapezoidal, the height of its low end is slightly smaller than the depth of the groove, and the height of its high end is larger than the groove The depth of which the lower end is the end connected to the groove.

The tooth pressing piece 2 is uniformly welded in the groove of the ring body 1 along the circumferential direction. The contact surface between the tooth pressing piece 2 and the groove is a plane, and the contact surface with the punching piece is a slope. The welded pressure ring is shown in Figure 5 Show. During lamination, the trapezoidal tooth pressing piece 2 can effectively compress the tooth portion and reduce the deformation of the tooth portion caused by lamination pressure.

The above are only preferred implementations of the utility model, and the utility model is not limited to the above examples. It can be understood that other improvements and changes that are directly derived or conceived by those skilled in the art without departing from the basic concept of the present utility model shall be considered to be included in the protection scope of the present utility model.

Claims (2)

1. for compressing a ring pressing construction for stator punching, it is characterized in that, comprise circle body and tooth pressing plates, the inner ring of described circle body processes groove, described tooth pressing plates circumferentially uniform welding in the groove of circle body; Described tooth pressing plates is trapezoidal, and the height of its low side is less than the degree of depth of groove, and its high-end height is greater than the degree of depth of groove, and described low side is the one end be connected with groove.

2. according to claim 1 for compressing the ring pressing construction of stator punching, it is characterized in that, the contact-making surface of described tooth pressing plates and groove is plane, is inclined-plane with the contact-making surface of punching.