CN100494671C

CN100494671C - Composite electromagnetic material engine

Info

Publication number: CN100494671C
Application number: CNB2006100477213A
Authority: CN
Inventors: 刘本成
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-09-12
Filing date: 2006-09-12
Publication date: 2009-06-03
Anticipated expiration: 2026-09-12
Also published as: CN101144453A

Abstract

The invention relates to a compound electromagnetism material starter. The invention comprises a machine casing, a front end cover, a rear end cover, an electromagnet switch, a rotator assembly, a stator assembly, an output gear, a middle separating plate and a shifting fork, the technical main point is: aluminum electromagnet rotator coils are distributed in the iron core groove of the rotator of the rotator assembly, a wrapping type copper and aluminum compound dip welding structure is adopted at the connection between the outgoing line of the rotator coil and the commutator, a rolling bearing is arranged at the connection between the both ends of the rotator assembly axle and the front and rear end covers, and a bearing transverse orientation device is arranged at the inner side of the front end cover. Four groups of aluminum electromagnet coils are distributed at the inner side of the machine casing of the stator assembly, and overlapping type welding structure is adopted at the connected of the ends of the adjacent two groups of aluminum electromagnet coils. Because the wrapping type copper and aluminum compound dip welding structure is adopted at the above connection, in order to realize the copper and aluminum welding in the starter, and to enable the replacement of the copper wire by the aluminum electromagnet wire to be possible. The invention also has the advantages that the structure is simple and reasonable, the cost is inexpensive, the working performance is stable, and the service life is long, as well as the application scope is broad.

Description

A kind of composite electromagnetic material engine

Technical field

The present invention relates to belong to the farm machinery technical field, specifically a kind of composite electromagnetic material engine that is used on the Agricultural automotive vehicle.

Background technique

As everyone knows, traditional actuating motor structure is by direct current generator, magnetic switch, compositions such as actuation gear, wherein electromagnetic coil is all formed by the copper material coiling, because copper product has electric conductivity preferably, so be widely used, but in the last few years because rising steadily of copper product price makes product promotion be subjected to certain influence.Aluminium has electric conductivity and good thermal conductivity preferably, and low production cost, can replace copper material in this field fully, but because the difficulty of its welding technique is big, complex process is not so apply in this field so far.

Summary of the invention

The purpose of this invention is to provide the composite electromagnetic material engine that a kind of electromagnetic coil adopts the copper aluminum compound structure.

The object of the present invention is achieved like this: it includes casing, front cover, rear end cover, magnetic switch, rotor assembly, stator assembly, output gear, intermediate clapboard, fork is characterized in that: be distributed with aluminum electromagnetic rotor coil in the rotor iron core notch of rotor assembly, the lighting outlet of rotor coil and the joint of commutator are the compound immersed solder structure of bundling type copper aluminium, be respectively arranged with rolling bearing at the two ends of rotor assembly axle and the joint of front and rear cover, also be provided with a bearing lateral locator in the inboard of front cover.

Be evenly distributed with the electromagnetic coil of four groups of aluminum square-sections in the casing inboard of stator assembly, the place of being end-to-end of two adjacent groups aluminum electromagnetic coil is the overlapping welded structure.

Compound immersed solder structure of above-mentioned bundling type copper aluminium or the welded welding method of overlapping are as follows: will need the outer surface of welding part evenly to be coated with one deck soldering flux on rotor assembly or the stator assembly, then with this position or be dipped in content in 35-45%, temperature 200-260 ℃ solution of tin, perhaps be dipped in content 63%, in the solution of tin of temperature 120-160 ℃, time is 3-8 second, and the taking-up of welding back is cooled to normal temperature and gets final product.

Above-mentioned soldering flux is encouraged extra large Co., Ltd product for the Taiyuan, Shanxi city.

The degree of depth of above-mentioned immersion solution of tin be the welding part height 1/3rd to 4/5ths between, welding effect is relatively stable.

Also have additional rivet connection, wire or tinsel at above-mentioned overlapping weld and be intertwined and connected, so that further increase its intensity.

Is the copper hold-in winding at the inner/outer tube jacket around the internal layer winding of formula magnetic switch, and its outer winding is the aluminum pull in winding.

In order further to improve support strength, then between the axle of intermediate clapboard and rotor assembly, go back the another rolling bearing of suit.

For improving the working life of magnetic switch, then on the switch movable touching plate connecting rod of magnetic switch, from inside to outside be disposed with positive stop lug boss, counterbalance spring, with the contact bearing support of connecting rod insulation, the fixed limit catch and after the boss of riveting tightly.

The present invention has following advantage:

1, because the compound immersed solder structure of bundling type copper aluminium is adopted in the joint of the lighting outlet of rotor coil and commutator, realized that the copper and aluminium welding in the starter motor connects, making the aluminum electromagnetic wire replace copper cash becomes possibility.Because the specific resistance of aluminum electromagnetic wire is bigger, electric conductivity is lower than the copper electromagnetic wire, therefore need suitably increase the cross-section area of electromagnetic wire in actual applications, to improve magnitude of current; Also to suitably increase the quantity of rotor lamination simultaneously,,, thereby reach the technical performance of motor so that improve the magnetic flux of complete machine to increase the sectional area of rotor iron core.

2, stator coil of the present invention is owing to adopt the aluminum electromagnetic coil, and be the overlapping welded structure at the aluminum electromagnetic coil of the two adjacent groups place of being end-to-end, saved the joint time, improved welding efficiency, reduce joint quantity, increased weld strength and conductive area, as required, on the basis of overlapping welding, also set up rivet connection, wire or tinsel and be intertwined and connected, thereby further reinforced the soundness of overlapping welding.

What 3, magnetic switch adopted is the bimetal winding around, because the pull in winding of magnetic switch is the moment actuating coil, be difficult for heating, suitably increase the long-pending and number of turn of coil section, improved electromagnetic performance, so what pull in winding adopted is the aluminum winding, and hold-in winding and motor are synchronous actuating coils, so what adopt is the copper winding, whole magnetic switch is a copper aluminium composite electromagnetic coil, its power supply contact and front limit boss and the disposable riveted structure of the spacing catch in back are stablized structure more and have been improved greatly mechanical property and working life.

The present invention also has simple and reasonable, and is with low cost, stable work in work, and radiating effect is remarkable, and complete machine is in light weight, long service life, advantage such as application area is wide.

Description of drawings

Fig. 1 is a sectional structure simplified schematic diagram of the present invention

Fig. 2 is that stator coil of the present invention launches simplified schematic diagram

Fig. 3 is that the A-A of Fig. 1 is to the amplification profile sketch

Embodiment

The present invention will be further described by embodiment below in conjunction with accompanying drawing, but following example only is the present invention's example wherein, the interest field of not representing the present invention and being limited.This interest field is as the criterion with claims.

Embodiment 1:

Shown in Fig. 1-3, among the figure 3 is that front cover, 28 is that casing, 16 is that rear end cover, 27 is output gear and intermediate clapboard 5, fork 26, be arranged at the magnetic switch 29 of front cover upper end, in the rotor iron core notch of rotor assembly, be distributed with aluminum electromagnetic rotor coil 9, the lighting outlet of this rotor coil and the joint of commutator are the compound immersed solder structure 11 of bundling type copper aluminium, be respectively arranged with rolling

bearing

1 and 13 at the two ends of rotor assembly axle and the joint of front and rear cover, also be provided with a bearing lateral locator 2 in the inboard of front cover.The concrete welding method of the compound immersed solder structure of above-mentioned bundling type copper aluminium is as follows: need the outer surface of welding part evenly to be coated with one deck soldering flux (extra large Co., Ltd product is encouraged in the Taiyuan, Shanxi city) this, then with this position or be dipped in content in 35-45%, temperature 200-260 ℃ solution of tin, the degree of depth that immerses solution of tin is half height of workpiece welding part height, time is 3-8 second, the concrete time should suitably increase and decrease according to the operating environment temperature variation, as: the operating environment temperature is at 15-20 ℃, and the time is about 4 seconds; The operating environment temperature is at subzero 15-20 ℃, and the time is about 7 seconds.The taking-up of welding back is cooled to normal temperature and gets final product.

Be evenly distributed with the electromagnetic coil 10 of four groups of aluminum square-sections in casing 28 inboards of stator assembly, the place of being end-to-end of two adjacent groups aluminum electromagnetic coil is overlapping welded structure 30 (welding method is same as described above), also have additional rivet 31 at the overlapping weld and connect, so that further gain in strength.Above-mentioned electromagnetic coil 10 is the two-way magnetic circuit, symmetry is set on the magnetic pole 8, pole polarity is the adjacent opposite sex, number of poles is four utmost points, be provided with rotor 7 in corresponding inboard with magnetic pole of the stator, the rotor shaft front end is a clutch end, on this axle, also be set with intermediate clapboard 5, dividing plate and between centers are equipped with rolling bearing 6, at dividing plate front suit output gear 27, also be provided with a bearing lateral locator 2 and rolling bearing 1 in the end of axle, be placed on the axle in its bearing, then outer front cover 3 inboards that are placed on, the rotor shaft rear end is a driven end, it places on the rear end cover 16 by bearing 13, at the middle part of rotor 7 is the motor driving iron core, iron core is a sheet multilayer laminated structure, rotor electromagnetic coil Outlet is connected with the rotor commutator 14 that is provided with later, its end linkage structure is the compound immersed solder structure 11 of bundling type copper aluminium, as shown in Figure 3,33 among the figure is the state before not wrapping up, and 34 is the end cross-sectional of rotor coil lighting outlet, 35 is the parcel connecting sheet of commutator, and 36 among the figure is for omitting unillustrated bundling type copper aluminum compound structure.Four brushes 15 corresponding with rotor commutator 14 crimping mutually, its two positive brushes are connected with stator coil 10, two negative pole brush ground connection are forged iron, and form the complete magnetic circuit of motor.In switch shell of Electromagnetic 25, cover is wound with the barrel-type electromagnetic winding of internal and external layer coil, its inboard winding is a copper hold-in winding 23, and outer winding is an aluminum pull in winding 24, also is provided with a movable touching plate 19 in magnetic switch 29 rear side cover caps, connecting rod 22, its connecting rod from inside to outside is disposed with positive stop lug boss 21, and counterbalance spring 32 is with the movable touching plate supporting frame 20 of connecting rod insulation, the spacing catch 18 in back, and after the boss 17 of riveting tightly.In order to prevent water in this starter motor, then also be provided with self-flow type weep hole 4 in the front cover bottom, the rear end cover bottom also is provided with self-flow type weep hole 12.Working principle is identical with traditional starter motor, the Therefore, omited.

Claims

1, a kind of composite electromagnetic material engine, it includes casing, front cover, rear end cover, magnetic switch, rotor assembly, stator assembly, output gear, intermediate clapboard, fork, it is characterized in that: in the rotor iron core notch of rotor assembly, be distributed with aluminum electromagnetic rotor coil, the lighting outlet of rotor coil and the joint of commutator are the compound immersed solder structure of bundling type copper aluminium, are respectively arranged with rolling bearing at the two ends of rotor assembly axle and the joint of front and rear cover, also are provided with a bearing lateral locator in the inboard of front cover.

2, composite electromagnetic material engine according to claim 1, it is characterized in that: be evenly distributed with the electromagnetic coil of four groups of aluminum square-sections in the casing inboard of stator assembly, the place of being end-to-end of two adjacent groups aluminum electromagnetic coil is the overlapping welded structure.

3, composite electromagnetic material engine according to claim 2 is characterized in that: also have additional rivet connection, wire or tinsel at the overlapping weld and be intertwined and connected.

4, composite electromagnetic material engine according to claim 1 is characterized in that: described magnetic switch be the inner/outer tube jacket around formula, the internal layer winding of magnetic switch is the copper hold-in winding, its outer winding is the aluminum pull in winding.

5, composite electromagnetic material engine according to claim 1 is characterized in that: go back the another rolling bearing of suit between the axle of intermediate clapboard and rotor assembly.

6, composite electromagnetic material engine according to claim 1, it is characterized in that: from inside to outside be disposed with positive stop lug boss on the switch movable touching plate connecting rod of magnetic switch, counterbalance spring, with the contact bearing support of connecting rod insulation, the fixed limit catch and after the boss of riveting tightly.

7, composite electromagnetic material engine according to claim 1 is characterized in that: also be respectively arranged with a self-flow type weep hole in the bottom of front and rear cover.

8, the composite electromagnetic material engine of stating according to claim 1, it is characterized in that: the welding method of the compound immersed solder structure of described bundling type copper aluminium is as follows: will need the outer surface of welding part evenly to be coated with one deck soldering flux on rotor assembly or the stator assembly, then this position is dipped in content in 35-45%, temperature 200-260 ℃ solution of tin, perhaps be dipped in content 63%, in the solution of tin of temperature 120-160 ℃, time is 3-8 second, and the taking-up of welding back is cooled to normal temperature and gets final product.

9, composite electromagnetic material engine according to claim 2, it is characterized in that: the welded welding method of described overlapping is as follows: will need the outer surface of welding part evenly to be coated with one deck soldering flux on rotor assembly or the stator assembly, then this position is dipped in content in 35-45%, temperature 200-260 ℃ solution of tin, perhaps be dipped in content 63%, in the solution of tin of temperature 120-160 ℃, time is 3-8 second, and the taking-up of welding back is cooled to normal temperature and gets final product.

10, according to Claim 8 or 9 described composite electromagnetic material engines, it is characterized in that: the degree of depth that immerses solution of tin be the welding part height 1/3rd to 4/5ths between.