CN103138462A

CN103138462A - Built-in bearing chamber structure

Info

Publication number: CN103138462A
Application number: CN201310094166XA
Authority: CN
Inventors: 环宇平; 陈秀荣
Original assignee: FGSL Electric Co Ltd
Current assignee: FGSL Electric Co Ltd
Priority date: 2013-03-22
Filing date: 2013-03-22
Publication date: 2013-06-05

Abstract

A built-in bearing chamber structure comprises a molding compound, a bearing chamber and a thin steel plate semi-bearing chamber. The built-in bearing chamber structure is characterized in that the thin steel plate semi-bearing chamber is arranged at one end, close to a rotor, of the bearing chamber and is embedded in the molding compound. The thin steel plate semi-bearing chamber is in a flat circular ring shape and is provided with a flange edge. Moreover, the thin steel plate semi-bearing chamber is made of leftover materials of silicon steel sheets with thickness of 0.5 millimeter. When the size of the bearing chamber made of the molding compound and the silicon steel sheet changes under the influence of temperature, the molding compound and the silicon steel sheet can mutually offset the generated influence and ensure that the running environment of a bearing is unchanged. The high wear resistance of the silicon steel sheet ensures the service life of the bearing chamber, and 70% of steel plate materials are saved.

Description

A kind of embedded bearing chamber structure

Technical field

The present invention relates to a kind of structural design of plastic packaging motor, particularly relate to a kind of embedded bearing chamber structure.

Background technology

Plastic packaging motor is to adopt plastic package technology that the stator core of motor, winding etc. are carried out overall package with engineering plastics, can cancel traditional motor stator insulated treatment process and the metal chassis of common electric machine.The bearing chamber of traditional plastic packaging motor has two kinds of structures, a kind of is to become end cap by steel plate stretching, the area of end cap is made whole bearing chambers at least, then with the stator plastic packaging together, for steel plate end cap when the plastic packaging can be located, mould a flange also will be arranged, so that can be pushed down flange and locates when plastic packaging.The shortcoming of this mode is that the materials of steel plate end cap are many, and the Precision Machining cost is high.Today that the electricity price of being in lattice are increasingly competitive, because the cost of material has increased, be unfavorable for the sale of motor.The bearing chamber that another kind of mode is plastic packaging is directly formed out by plastic packaging material, although this structure has been saved cost, but useful life is short, the each starting of bearing stops Shi Douhui to frictional force of bearing chamber, of long duration, the plastic packaging material of bearing chamber inwall can produce powder, after these powder enter bearing, makes bearing produce noise.And this bearing chamber also be difficult to guarantee the consistency of size on production technology, because the shrinkage temperature influence of plastic packaging material alters a great deal, during winter and summer, the bearing chamber internal diameter size varies in size, and affects the running status of bearing.

Summary of the invention

Purpose of the present invention is exactly that a kind of embedded bearing chamber structure that can the economical with materials cost can improve again electrical machinery life will be provided, and effectively overcomes above-described various defective.

Of the present inventionly be achieved in that a kind of embedded bearing chamber structure, comprise plastic packaging material, thin slice steel plate half-and-half bearing chamber, it is characterized in that: bearing chamber is provided with the thin slice steel plate through the half-and-half bearing chamber that hole flanging is processed near an end of rotor, and is embedded in plastic packaging material; Described thin slice steel plate half-and-half bearing chamber is set to flat circular, and is provided with flange.

Further, described thin slice steel plate half-and-half bearing chamber is to be made by the silicon steel sheet leftover pieces that thickness is 0.5mm.

As optimization, described thin slice steel plate half-and-half bearing chamber one side is fixed by even number root jogger hole, bearing chamber is pressed on platform injection moulding makes.

In the present invention when plastic packaging material position Yin Wendu affects internal diameter size and changes, the internal diameter size of thin slice steel plate half-and-half bearing chamber remains unchanged, the running environment that has guaranteed bearing is constant, both can guarantee the useful life of bearing chamber, saved again steel plate materials, also the leftover pieces of silicon steel plate have effectively been utilized simultaneously.

Description of drawings:

Fig. 1 is structural representation of the present invention;

Fig. 2 is the structural representation of thin slice steel plate half-and-half bearing chamber in the present invention.

1. plastic packaging materials in figure, 2. bearing chamber, 3. jogger hole, 4, thin slice steel plate half-and-half bearing chamber, 5. flange.

Embodiment

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

A kind ofEmbedded Bearing chamber structureComprise plastic packaging material 1, bearing chamber 2, thin slice steel plate half-and-half bearing chamber 3, it is characterized in that: the half-and-half bearing chamber 3 that bearing chamber 2 is provided with near an end of rotors that the thin slice steel plate is processed into through hole flanging, and be embedded in plastic packaging material 1, described thin slice steel plate half-and-half bearing chamber 3, to be replaced by the silicon steel sheet leftover pieces that thickness is 0.5mm, the height that silicon steel sheet is shaped to flat circular thin slice steel plate half-and-half bearing chamber 3 as shown in Figure 2 is preferably 1/2 of bearing height, and bearing chamber 2 is comprised of plastic packaging material 1 and chamber 3 splicings of thin slice steel plate half-and-half bearing; Can reliably locate when the plastic packaging in order to guarantee thin slice steel plate half-and-half bearing chamber 4, make flange 5 on thin slice steel plate half-and-half bearing chamber 4, like this when plastic packaging, mould can be pushed down flange 5, add simultaneously four jogger holes 3 in the outside of bearing chamber 2, thin slice steel plate half-and-half bearing chamber 4 is completely fixed, guaranteed the positional precision of thin slice steel plate half-and-half bearing chamber 4.

Claims

1. embedded bearing chamber structure, comprise plastic packaging material (1), bearing chamber (2), thin slice steel plate half-and-half bearing chamber (3), it is characterized in that: bearing chamber (2) is provided with the thin slice steel plate through the half-and-half bearing chamber (3) that hole flanging is processed near an end of rotor, and is embedded in plastic packaging material (1); Described thin slice steel plate half-and-half bearing chamber (3) is set to flat circular, and is provided with flange (5).

2. a kind of embedded bearing chamber structure according to claim 1, it is characterized in that: described thin slice steel plate half-and-half bearing chamber (4) is to be made by the silicon steel sheet leftover pieces that thickness is 0.5mm.

3. a kind of embedded bearing chamber structure according to claim 1 is characterized in that: described thin slice steel plate half-and-half bearing chamber (4) is fixing by even number root jogger hole (3), bearing chamber (2) is pressed on platform injection moulding makes.