CN206023397U - A kind of motor - Google Patents

Abstract

A kind of motor, including hollow casing, it is fixed on the stator component of support inner surface and is vacantly contained in the rotor part that casing both ends of the surface are rotatably fixed at the casing internal and two ends, the rotor part includes metal rotating shaft and metal magnetic conducting part, the metal magnetic conducting part intermediate formation has perforation, the metal rotating shaft is worn in the perforation for being fixed on metal magnetic conducting part, is formed with the interference part for protruding outer surface on the metal rotating shaft surface.By being formed with the interference part for protruding outer surface on the metal rotating shaft surface, metal rotating shaft hardness is not less than metal magnetic conducting part, so that metal rotating shaft is stable with metal magnetic conducting part fixing.

Description

A kind of motor

Technical field

This utility model is related to a kind of motor.

Background technology

With the development of science and technology, motor is the requisite electrical equipment in industry-by-industry field.Motor refers to foundation The law of electromagnetic induction realizes a kind of calutron of electric energy conversion or transmission.Motor of the prior art comes in every shape.For example, press Working power species is divided：Direct current generator and alternating current generator can be divided into.Wherein alternating current generator can also be divided into：Monophase machine and three Phase motor.The Main Function of motor is to produce driving torque, converts electrical energy into mechanical energy.In prior art, wherein unidirectional current Machine includes casing, the stator component being fixed on casing inner wall, i.e., be vacantly contained in casing internal and two ends are rotatable The rotor part for being fixed on casing two ends.

Which part rotor part of the prior art includes the rounded rotating shaft in section and is folded by multiple magnetic conduction steel discs Press and form and wear the magnetic links being fixed in rotating shaft.In prior art, between affiliated rotating shaft and magnetic links general by key come Fixed, to ensure rotating shaft and magnetic links synchronous axial system.But in actual product manufacture process, rotating shaft outer surface wearing in magnetic links It is difficult to be brought into close contact between internal surface of hole, due to making the reasons such as tolerance, often there is trickle gap, so that rotating shaft With magnetic links fixing not closely, so as to affect the work of whole motor, the damage that abnormal sound, life-time service can even cause key is such as produced Bad etc..

Therefore, it is necessary in fact to provide a kind of new technical scheme, the rotating shaft of rotor part can be made steady with magnetic links fixing Fixed.

Utility model content

The purpose of this utility model is that design provides a kind of motor, holds stable between the rotating shaft of its rotor and magnetic links.

In order to realize that these bright purposes of utility model and further advantage, this utility model provide a kind of motor, including Hollow casing, is fixed on the stator component of support inner surface and is vacantly contained in the casing internal and two ends are rotatable The rotor part of casing both ends of the surface is fixed on, the rotor part includes metal rotating shaft and metal magnetic conducting part, the metal Magnetic conductive part intermediate formation has perforation, the metal rotating shaft to wear in the perforation for being fixed on metal magnetic conducting part, and the metal turns The interference part for protruding outer surface is formed with axle surface.

Further, each interference part is in wire, is extended from one end of metal rotating shaft to the other end.

Further, the interference part is linearly.

Further, on the metal rotating shaft outer surface, adjacent interference part position is formed with the depression in recessed rotating shaft outer surface Portion.

Further, the interference part projects the altitude range of rotating shaft outer surface between 0.03 millimeter to 0.07 millimeter.

Further, the height that the interference part projects rotating shaft outer surface is 0.05 millimeter.

Further, fixed by interference fit between the metal rotating shaft and metal magnetic conducting part.

Further, the rotating shaft hardness is not less than metal magnetic conducting part.

Further, the metal magnetic conducting part is combined through laminating by the magnetic conduction steel disc of several lamellars, each magnetic conduction steel Piece section is in the form of annular discs.

Further, the interference part of the rotating shaft is absorbed in metal magnetic conducting part intermediate formation and has in perforation inwall.

This utility model motor has advantages below：The dry of outer surface is protruded by being formed with the metal rotating shaft surface Portion is related to, metal rotating shaft hardness is not less than metal magnetic conducting part, so that metal rotating shaft is stable with metal magnetic conducting part fixing.

Description of the drawings

Fig. 1 is the partial perspective view of the rotor part of this utility model motor.

Fig. 2 is the part isometric exploded view of the rotor part of this utility model motor, which show rotating shaft and metal magnetic conducting Axonometric chart after isolation of components.

Fig. 3 is the front view of rotor part shown in Fig. 1.

Fig. 4 is the front view that rotor part shown in Fig. 2 is seen from another angle.

Fig. 5 is the partial enlarged drawing of rotor part shown in Fig. 3.

Specific embodiment

With reference to the accompanying drawings embodiment of the present utility model is described in further detail.

Please join shown in Fig. 1 to Fig. 5, the motor in this utility model includes hollow casing (not shown), fixed In casing inner surface stator component (not shown) and be vacantly contained in the casing internal and machine is rotatably fixed at two ends The rotor part 100 of shell both ends of the surface.The casing includes fuselage seat (not shown), is installed in the drive end bearing bracket of fuselage seat front end (not shown) and it is installed in the rear end cap (not shown) of fuselage base rear end.Turn hole is offered on the drive end bearing bracket and rear end cap (not shown), the two ends of the rotor part 100 are respectively in the rotatable turn hole for being assembled in the drive end bearing bracket and rear end cap, this In utility model, because motor basic structure is industry known techniques, therefore not shown.

Please join shown in Fig. 1 to Fig. 4, the rotor 1 includes the metal rotating shaft 11 of magnetic conduction and wears and is fixed in rotating shaft 11 Metal magnetic conducting part 12, magnetic conduction steel disc 121 of metal magnetic conducting part described in this utility model 12 by several through being overrided to form Composition.Each magnetic conduction steel disc 121 is overall in the form of annular discs, offers 120 (this practicality of through hole in the middle part of the metal magnetic conducting part 12 Show as offering through hole 120) in the middle part of each magnetic conduction steel disc 121 in new, 120 interior and metal magnetic conducting of the insertion of the rotating shaft 11 through hole Part 12 is fixed as one.

Please join shown in Fig. 2 to Fig. 5, on 11 outer surface of the rotating shaft, be formed with some linear interference portions for protruding outer surface 111, and adjacent interference part formed recessed rotating shaft outer surface in depressed part 112, the interference part 111 and depressed part 112 equal Cutting is scratched along 11 axial direction of rotating shaft to the other end from 11 outer surface one end of rotating shaft through cutting knife (not shown) to form, certainly described Interference part 111 and depressed part 112 also can via cutting knife by 11 outer surface of rotating shaft along parallel to 11 radial direction of rotating shaft either one It is pressed downward cutting to form.The interference part 111 and depressed part 112 in this utility model is linearly, and with 11 axle of rotating shaft Parallel to direction.It is substantially in fin shape that the interference part 111 projects 11 outer surface of the rotating shaft.Certainly in this utility model 111 actual very little of the interference part, the altitude range of general prominent 11 outer surface of rotating shaft between 0.03 millimeter to 0.07 millimeter, Preferred embodiment is that the height for projecting 11 outer surface of rotating shaft can be beneficial to rotating shaft 11 and metal magnetic conducting part at 0.05 millimeter, so Mutual assembling between 12, and ensure that rotating shaft 11 has good fixing effect with metal magnetic conducting part 12.Interference part 111 projects The altitude range of 11 outer surface of rotating shaft can then affect greatly very much the mutual assembling between rotating shaft 11 and metal magnetic conducting part 12.Interference part The altitude range of 111 protrusion 11 outer surfaces of rotating shaft is too little, and the fixing between rotating shaft 11 and metal magnetic conducting part 12 can be affected to imitate Really.

In this utility model, the metal material hardness adopted by the rotating shaft 11 is hard not less than metal magnetic conducting part 12 Degree, and the corresponding diameter with the 120 phase bearing of through hole of metal magnetic conducting part 12 is substantially equal in through hole 120 in the rotating shaft 11 Footpath.During the assembling mutual with metal magnetic conducting part 12 of the rotating shaft 11 is fixed together, as 11 hardness of rotating shaft is not less than Metal magnetic conducting part 12, the interference part 111 on 11 outer surface of the rotating shaft will scratch table in 12 through hole 120 of metal magnetic conducting part Face so that the interference part 111 of 11 outer surface of rotating shaft is trapped in 120 inwall of through hole of metal magnetic conducting part 12, forms similar spiral shell Stricture of vagina shape interference structure so that hold between rotating shaft 11 and metal magnetic conducting part 12 stable, prevent 11 cross-sectional diameter of rotating shaft with Mate between 120 internal diameter of through hole of metal magnetic conducting part 12 and coincide, to increase the allowed band of actual manufacturing tolerance.

Certainly in other fact Examples, the corresponding 120 phase bearing of through hole with metal magnetic conducting part 12 in the rotating shaft 11 Cross section also may be designed to the other shapes such as triangle, polygon, it is only necessary to mate 120 shape of through hole of metal magnetic conducting part 12 ?.

Please join shown in Fig. 5, in this utility model, the interference part 111 is ridge shape, and protrusion surface is in arcuation, exists certainly In other embodiment, the interference part 111 can also be wedge angle triangle (reversed acanthoid) protruding upward, can also be protruding upward Trapezoidal shape, 111 concrete shape of interference part can according to practical situation make adaptation change.In addition 112 shape of depressed part and interference part 111 similar can also making adapt to change.

Motor in this utility model can be any form motor of the prior art, such as brushless direct current motor, Brush DC motors, permanent magnet direct current motor, electromagnetism dc motor, ac motor, electromotor etc..

This specification is only that embodiment referring to the drawings is further illustrated to this utility model, not to this practicality New restriction.In the range of technical concept of the present utility model, those skilled in the art can be new by the practicality of the disclosure above Content designed by type is made including the various mode simple deformations or equivalent substitute including material, is belonged to of the present utility model In the range of technical concept, without departing from scope that is of the present utility model spiritual or surmounting claims definition.

Claims (10)

1. a kind of motor, including hollow casing, is fixed on the stator component of support inner surface and is vacantly contained in the casing The rotor part of casing both ends of the surface is rotatably fixed at internal and two ends, and the rotor part includes metal rotating shaft and metal Magnetic conductive part, the metal magnetic conducting part intermediate formation have perforation, the metal rotating shaft to wear and be fixed on metal magnetic conducting part In perforation, it is characterised in that：The interference part for protruding outer surface is formed with the metal rotating shaft surface.

2. motor as claimed in claim 1, it is characterised in that：Each interference part be in wire, from metal rotating shaft one end to The other end extends.

3. motor as claimed in claim 2, it is characterised in that：The interference part is linearly.

4. the motor as described in claim or 1 or 2 or 3, it is characterised in that：Adjacent interference part on the metal rotating shaft outer surface Position is formed with the depressed part in recessed rotating shaft outer surface.

5. the motor as described in claim 1 or 2 or 3, it is characterised in that：The interference part projects the height model of rotating shaft outer surface It is trapped among between 0.03 millimeter to 0.07 millimeter.

6. the motor as described in claim 1 or 2 or 3, it is characterised in that：The interference part projects the height of rotating shaft outer surface 0.05 millimeter.

7. the motor as described in claim 1 or 2 or 3, it is characterised in that：Lead between the metal rotating shaft and metal magnetic conducting part Cross interference fit to fix.

8. the motor as described in claim 1 or 2 or 3, it is characterised in that：The rotating shaft hardness is not less than metal magnetic conducting part.

9. the motor as described in claim 1 or 2 or 3, it is characterised in that：Metal magnetic conducting part the leading by several lamellars Magnetic links are combined through laminating, and each magnetic conduction steel disc section is in the form of annular discs.

10. the motor as described in claim 1 or 2 or 3, it is characterised in that：The interference part of the rotating shaft is absorbed in metal magnetic conducting portion Part intermediate formation has in perforation inwall.