CN203326744U

CN203326744U - External installation pressure type stator iron core fixing structure

Info

Publication number: CN203326744U
Application number: CN201320259810XU
Authority: CN
Inventors: 段志强; 齐智镝; 李春娟; 赵长青
Original assignee: Dongfang Electric Machinery Co Ltd DEC
Current assignee: Dongfang Electric Machinery Co Ltd DEC
Priority date: 2013-05-14
Filing date: 2013-05-14
Publication date: 2013-12-04
Anticipated expiration: 2023-05-14

Abstract

The utility model discloses an external installation pressure type stator iron core fixing structure, comprising a stator iron core, a stator iron core pressing plate, a machine base plate, and an iron core bracing. The machine base plate is provided with a U-shaped groove matched with the iron core bracing, and the iron core bracing is embedded in the U-shaped groove. The end part of the iron core bracing is bended downwards to tightly buckle the end part of the stator iron core. The stator iron core pressing plate covers the bending part of the iron core bracing. By employing the fixing structure, the welding is convenient and welding slag is easy to polish and clean; the stator iron core is enabled to match with a machine base in a relatively good manner and to be fixed in the circumferential direction; and in the case of accidents, the rotation of a motor in the circumferential direction can be effectively controlled and the reliability and safety of the motor can be improved.

Description

A kind of fixed structure of exterior pressure type stator core

Technical field

The utility model relates to generator, motor stator-core fixed structure technical field, exactly relates to a kind of fixed structure of exterior pressure type stator core.

Background technology

For exterior pressure type stator core, after the support of packing into, stator core coordinates generally in the following way with the support circumferencial direction: the one, open U-lag on the stator core pressing plate, allow the lacing wire of tension stator core pass also welded together from U-lag, after processing excircles, with the support former, coordinate, and then by lacing wire and the support former fixedly purpose that reaches welded together; Another mode is to open U-lag on the stator core pressing plate, allow the lacing wire of tension stator core pass also welded together from U-lag, after processing excircles, with the support former, coordinate, and then hole on support former and stator core pressing plate, fix stator motion in a circumferential direction by straight pin.Its structure refers to accompanying drawing 1 to accompanying drawing 4.

Above several mode, all effective fixed stator iron core.But, first kind of way because welding position is positioned at pressing plate unshakable in one's determination by unshakable in one's determination inboard, the base inner narrow space, partial stator lacing wire unshakable in one's determination and support former can't weldings, and the welding slag that postwelding forms is not easy polishing and clears up; The second way also needs to carry out separately, with boring with hinge pin hole order, to take big-and-middle-sized process equipment after support is packed in stator core into, is unfavorable for the batch production of motor.In addition, above two kinds of modes are in the situations such as badly operation of motor, welding seam failure, mating surface inefficacy, pin fracture, and stator core will be rotated under the effect of magnetic pull in support, causes great motor accident.

Summary of the invention

The purpose of this utility model is to provide a kind of fixed structure of exterior pressure type stator core, and the fixed structure that solves existing stator core easily causes the problem of the situations such as welding seam failure, mating surface inefficacy, pin fracture.

Technical scheme of the present invention is: a kind of fixed structure of exterior pressure type stator core, comprise stator core, stator core pressing plate, support former, lacing wire unshakable in one's determination, it is characterized in that: have the U-lag coordinated with described lacing wire unshakable in one's determination on described support former, described lacing wire unshakable in one's determination embeds in this U-lag, the end of lacing wire unshakable in one's determination bends the End zone of stator core that links closely downwards, and the stator core pressing plate covers the kink of lacing wire unshakable in one's determination.

Further, the periphery of stator core pressing plate is step-like, and the step place coordinates with the kink of lacing wire unshakable in one's determination.

Further, the step of described stator core pressing plate periphery is the two-stage step, and the one-level step coordinates with support former inner peripheral surface, and another grade of step coordinates with the end of the kink of described lacing wire unshakable in one's determination.

Further, the weldering of the step sticker of the end of described lacing wire kink unshakable in one's determination and stator core pressing plate, the top of lacing wire kink unshakable in one's determination and support former are welded and fixed.

The utility model compared with prior art has following advantage:

1, after support is packed in stator core into, the assembly precision that can guarantee well stator and support that coordinates by stator core pressing plate cylindrical with the support former, and do not affect the motor integral rigidity.

2, stator core can be by the U-lag at the support former, support former and lacing wire unshakable in one's determination being welded together to realize fixing with support, convenient welding, and reliability is high, is conducive to batch production.

3, because U-lag and the gap between lacing wire of support former are limited, in the situation that occur that welding seam failure and mating surface lost efficacy, also can effectively control stator core rotation in a circumferential direction, can improve reliability and the fail safe of motor.

While 4, welding with lacing wire unshakable in one's determination after the iron core dress has been pressed, lacing wire unshakable in one's determination end is direct and the fastening of iron-core lamination end face is spacing, do not need to measure again the lacing wire axial dimension except the circumferencial direction size, do not need welding personnel that lacing wire unshakable in one's determination is guaranteed to axial dimension in the unsettled picking-up of axial direction yet.The operation that saves time, be beneficial to batch production.

The accompanying drawing explanation

Fig. 1 is a kind of stator core fixed structure schematic diagram of the prior art;

Fig. 2 is the partial enlarged drawing in Fig. 1;

Fig. 3 is another kind of stator core fixed structure schematic diagram of the prior art;

Fig. 4 is the partial enlarged drawing in Fig. 3;

Fig. 5 is structural representation of the present utility model;

Fig. 6 is the partial enlarged drawing in Fig. 5.

In figure, Reference numeral is respectively: 1, stator core pressing plate, 2, welding position, 3, the support former, 4, support, 5, lacing wire unshakable in one's determination, 6, stator core, 7 straight pins.

Embodiment

As shown in Fig. 5-Fig. 6, a kind of fixed structure of exterior pressure type stator core, comprise stator core 5, stator core pressing plate 1, support former 3, lacing wire unshakable in one's determination 5, have the U-lag coordinated with described lacing wire 5 unshakable in one's determination on described support former 3, described lacing wire unshakable in one's determination 5 embeds in this U-lag, the end of lacing wire 5 unshakable in one's determination bends stator core 6 ends of linking closely downwards, and stator core pressing plate 1 covers the kink of lacing wire 5 unshakable in one's determination.The periphery of stator core pressing plate 1 is step-like, and the step place coordinates with the kink of lacing wire 5 unshakable in one's determination.More specifically, the step of described stator core pressing plate 1 periphery is the two-stage step, and the one-level step coordinates with support former 3 inner peripheral surfaces, and another grade of step coordinates with the end of the kink of described lacing wire 5 unshakable in one's determination.The end of described lacing wire unshakable in one's determination 5 kinks and the weldering of the step sticker of stator core pressing plate 1, top and the support former 3 of lacing wire 5 kinks unshakable in one's determination are welded and fixed.

Operation principle of the present utility model is as follows:

After supports 4 are inserted in stator core 6, stator core pressing plate 1 coordinates with support former 3 and lacing wire unshakable in one's determination 5 is arranged in the U-lag of support former 3, at the end position of lacing wire 5 unshakable in one's determination, lacing wire 5 unshakable in one's determination and support former 3 is welded together.Because the gap between the U-lag of lacing wire 5 unshakable in one's determination and support former 3 is narrow and small, so this structure can directly play spacing effect, then, after welding, the motion of stator core on circumference is completely fixed.This structure economics, reliable, be conducive to batch production.

Claims

1. the fixed structure of an exterior pressure type stator core, comprise stator core, stator core pressing plate, support former, lacing wire unshakable in one's determination, it is characterized in that: have the U-lag coordinated with described lacing wire unshakable in one's determination on described support former, described lacing wire unshakable in one's determination embeds in this U-lag, the end of lacing wire unshakable in one's determination bends the End zone of stator core that links closely downwards, and the stator core pressing plate covers the kink of lacing wire unshakable in one's determination.

2. the fixed structure of a kind of exterior pressure type stator core according to claim 1, it is characterized in that: the periphery of stator core pressing plate is step-like, and the step place coordinates with the kink of lacing wire unshakable in one's determination.

3. the fixed structure of a kind of exterior pressure type stator core according to claim 2, it is characterized in that: the step of described stator core pressing plate periphery is the two-stage step, the one-level step coordinates with support former inner peripheral surface, and another grade of step coordinates with the end of the kink of described lacing wire unshakable in one's determination.

4. the fixed structure of a kind of exterior pressure type stator core according to claim 3 is characterized in that: the step sticker weldering of the end of described lacing wire kink unshakable in one's determination and stator core pressing plate, the top of lacing wire kink unshakable in one's determination and support former are welded and fixed.