CN206250864U

CN206250864U - A kind of silicon steel sheet for motor

Info

Publication number: CN206250864U
Application number: CN201621442246.5U
Authority: CN
Inventors: 洪裕兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-12-21
Filing date: 2016-12-21
Publication date: 2017-06-13
Anticipated expiration: 2026-12-21

Abstract

A kind of silicon steel sheet for motor, including the draw-in groove arranged according to certain formed objects, are located at draw-in groove top top and are at least the rivet hole array that a draw-in groove spacing arrangement is set, it is characterised in that：The silicon steel sheet is to form the circle body overlaying structure of N floor heights through coiling after wall scroll continuous cold rolling strip punching press, draw-in groove edge piece center is L with adjacent draw-in groove edge piece center step pitch, there is following relation between the gradient α of the inclination winding slot relative level that layer is superimposed and is formed with the rivet hole distance of layer transition for I, I and N layer draw-in groove：I=L ÷ α ÷ N.The utility model can be prepared by inclining the rotor that winding slot is set using wall scroll continuous cold rolling strip, the backward technology for being superimposed as rotor again into silicon steel sheet circle piece using a large amount of cold-reduced sheet monolithic punch dies is eliminated, save the costs such as substantial amounts of material, manpower, financial resources and production time, the energy consumption of whole production process is reduced, with certain creativeness.

Description

A kind of silicon steel sheet for motor

Technical field

The utility model is related to a kind of silicon steel sheet for motor.

Background technology

The inside of motor is made up of stator and rotor, and fixed part is called stator in motor, has installed thereon in pairs The static main pole of DC excitation；And rotating part installs armature winding above armature core, sensing is produced after energization Electromotive force, to serve as rotating excitation field, produces electromagnetic torque to carry out energy conversion afterwards.

Stator is generally formed by stacking with rotor by silicon steel sheet, is filled on the electromotive force produced after electrical power and rotor portion If armature winding group number have positive correlation, armature winding is more, and the electromotive force produced by rotor is bigger, rotor turn it is faster. Therefore, in the motor of formed objects, the armature winding number of rotor determines the performance of motor, and the coil of certain single-turn winding is long Degree is also one of key factor.

Rotor size is identical, and the change of armature winding number is limited, now many motor single turn coilings all from above rotor Loop length is started with, and is particularly often obliquely installed slot for winding in armature rotor winding, so from rotor top under rotor Square institute's pitch of the laps group it is elongated around thread path, the elongated purpose of coiling is reached, so that the electromotive force that respective rotor is produced becomes big.

But, constitute the silicon steel sheet of above-mentioned rotor when making because inclined setting, force silicon steel sheet can only monolithic give birth to Postpartum multi-disc superposition again, and monolithic can only be stamped to form on a cold-reduced sheet, cold-reduced sheet loss is big, and the cost of rotor is high.

Utility model content

The purpose of this utility model is exactly that its silicon steel sheet is used in order to solve to constitute the rotor that existing inclination winding slot is set Multiple cold-reduced sheets strike out structure that multiple circle pieces are formed by stacking again so that the high technical problem of cost, there is provided a kind of wall scroll Cold-reduced sheet is produced and inclines the silicon steel sheet for motor that winding slot is set.

The utility model wants the technical scheme of solve problem as follows：

A kind of silicon steel sheet for motor, including the size identical draw-in groove arranged according to certain amount, are located at draw-in groove top extremely It is less a rivet hole array for draw-in groove spacing arrangement setting, it is characterised in that：The silicon steel sheet is wall scroll continuous cold rolling strip The circle body overlaying structure of N floor heights is formed after punching press through coiling, draw-in groove edge piece center is with adjacent draw-in groove edge piece center step pitch L, the inclination winding slot relative level that layer is superimposed and is formed with the rivet hole distance of layer transition for I, I and N layer draw-in groove There is following relation between gradient α：I=L ÷ α ÷ N.

N layers coils rivet hole riveting of the silicon steel sheet being formed by stacking by rivet from ground floor through n-th layer and is fixed into rotor.

The beneficial effects of the utility model are as follows：

Can be prepared by inclining the rotor that winding slot is set using wall scroll continuous cold rolling strip, eliminated using a large amount of cold rolling Plate monolithic punch die is superimposed as the backward technology of rotor into silicon steel sheet circle piece again, saves substantial amounts of material, manpower, financial resources and time Deng production cost, the energy consumption of whole production process is reduced, with creativeness higher.

Brief description of the drawings：

Fig. 1 is the structural representation that the utility model silicon steel sheet constitutes rotor；

Fig. 2 is the cross-sectional view of Fig. 1；

Fig. 3 is Fig. 1 rotor deployed configuration schematic diagrams；

Fig. 4 is the STRUCTURE DECOMPOSITION structural representation of primary and secondary mould described in the utility model；

Fig. 5 is the floor map of primary and secondary mould described in the utility model；

The step of Fig. 6 is when the utility model makes schematic diagram.

Specific embodiment：

Make further details of elaboration to the utility model below in conjunction with the accompanying drawings.

Refering to Fig. 1 to Fig. 3, silicon steel sheet for motor, including size identical draw-in groove (1) arranged according to certain amount, if Rivet hole (2) array that a draw-in groove spacing arrangement is set is at least in draw-in groove (1) top, the silicon steel sheet is wall scroll continuous cold Roll the circle body overlaying structure for forming N floor heights after strip punching press through coiling, draw-in groove edge piece center and adjacent draw-in groove edge piece center Step pitch is L, the rivet hole distance of layer and layer transition for I, i.e. n-layer be coiling to n+1 layers when, the position being superimposed up and down is corresponding The rivet hole that rivet hole (2) will averagely arrange to n-layer has certain displacement, and this displacement adds original n-layer rivet hole Between spacing be exactly I, I and N layer draw-in groove be superimposed and formed inclination winding slot relative level gradient α between exist it is as follows Relation：I=L ÷ α ÷ N.

The natural number for being greater than zero that N is represented, N floor heights are that the silicon steel sheet superposition of rotor just has N layers, and such as 5 layers, N is exactly 5, n The number of N is then less than or equal to, n is then next layer of n more than or equal to 1, n+1 under normal circumstances.Gradient α is then to incline coiling Angle of inclination and the angle of horizontal plane that groove shows, the angle angle are bigger, incline winding slot and get over inclination, and it inclines winding slot Institute's coiling is more long more, and gradient α angles in the utility model are greater than 90 degree, because if with respect to the horizontal plane angle For 90 degree that be exactly rotor that conventional non-inclined winding slot is set, be not the protection to be advocated of the utility model.

In addition, the structure of draw-in groove is not shown in figure 3, for those skilled in the art, with reference to The structure of Fig. 1, Fig. 2 and existing rotor should be able to understand that Fig. 3 is simplified deployed configuration.

Refering to Fig. 4 to Fig. 6, a kind of preparation method of silicon steel sheet for motor comprises the following steps：

1st, get the raw materials ready input, the cold rolled strip coil (11) that will be cut into banding coiling is placed on winder (21), and by cold-reduced sheet The exposed junction (12) for rolling up (11) is input into punch press (23) after levelling machine (22) smoothing；Winder (21) is rotatable, and its both sides is equal Rack (211) is provided with, when using, two disk cold rolled strip coils (11) are nested with the rack (211) in winder (21) both sides respectively On, after a roll of cold rolled strip coil (11) is finished wherein, rotatable winder (21) makes the rack (211) of opposite side change to originally The position for being finished cold rolled strip coil, it should be noted that the bared end (12) of two disk cold rolled strip coils (11) is installed in both sides rack (211) direction is opposite, it is ensured that the bared end of cold rolled strip coil can be drawn in levelling machine (22) after winder (21) rotation.

2nd, processing output, exports after the placed mould processing in punch press of cold rolled sheet (11) of input punch press (23)：

The mould is secondary primary and secondary mould (AB), and submodule tool (B) is located at the inside of master tooling (A)；The master tooling (A) Including upper and lower two-layer die body, the charging for being respectively provided on two sides with relative punch press cold rolled sheet input (A231) of lower mold body (A2) The discharging guide plate (A22) of guide plate (A21) and relative punch press cold rolled sheet output end (A232)；

Lower mold body (A2) feeding guide-plate (A21) to discharge guide plate (A22) direction be sequentially provided with location hole cavity plate (A23), from Button point cavity plate (A24), groove profile cavity plate (A25), moving station (B1), trim die (A26), the stock guide of submodule tool (B) (A27), tear cavity plate (A28), moving station (B1) side of submodule tool (B) is provided with position-sensing switch (B2), moving station (B1) Rivet hole cavity plate (B3) is provided with, moving station (B1) opposite side is provided with a ball-screw (B4), and ball-screw (B4) is watched by one Take motor (B5) driving；Position-sensing switch (B2) is connected by data wire (B6) with a control circuit (figure is not marked), control circuit (figure Do not mark) it is powered at servomotor (B5)；

Cold rolled sheet (11) is with certain speed by feeding guide-plate (A21) and the center section of discharging guide plate (A22), phase Between upper die body (A1) matched moulds that is associated with hydraulic mechanism on punch press (23) to lower mold body (A2) cause cold rolled sheet (11) punching Go out draw-in groove (1) and rivet hole (2), and submodule therein tool (B) goes out a number of rivet hole (2) in cold rolled sheet (11) Afterwards, according to layer and layer transition after the position-sensing switch (B2) through being connected with control circuit (figure is not marked) is counted to counting module Rivet hole distance is by Cao Yanpian centers and another Cao Yanpian centers step pitch, the inclination winding slot formed divided by N layers of draw-in groove superposition The gradient α of relative level, show that the displacement numeral simulation occurred with rivet hole before turns divided by finished product N layers of floor height Turn to electricity moves moving station (B1) to servomotor (B5) rotation ball leading screw (B4)；

3rd, output winding, spring body structure is rolled into from the cold rolled sheet (11) of punch press (23) output to circle machine (24) is rolled up.

4th, rivet is fixed, and fixation is riveted afterwards through rivet hole (2) by rivet (3) after being superimposed into spring body structure semi-finished product.

Said process can be controlled by master station (25), and control circuit (figure is not marked) is also mountable to master station (25) It is interior.

Claims

1. a kind of silicon steel sheet for motor, including the size identical draw-in groove arranged according to certain amount, is located at draw-in groove top top The rivet hole array that at least one draw-in groove spacing arrangement is set, it is characterised in that：The silicon steel sheet is wall scroll continuous cold rolling plate Circle body overlaying structure with N floor heights are formed after punching press through coiling, draw-in groove edge piece center and adjacent draw-in groove edge piece center step pitch It is L, the inclination winding slot relative level that layer is superimposed and is formed with the rivet hole distance of layer transition for I, I and N layer draw-in groove Gradient α between there is following relation：I=L ÷ α ÷ N.

2. a kind of silicon steel sheet for motor according to claim 1, it is characterised in that：N layers coils the silicon steel sheet being formed by stacking Rivet hole riveting by rivet from ground floor through n-th layer is fixed into rotor.