CN207124517U - A kind of threephase asynchronous machine - Google Patents

Abstract

The utility model discloses a kind of threephase asynchronous machine, is related to machine field.The threephase asynchronous machine structure includes：Rotor, stator, shell and carbon brush configuration, rotor head end is arranged with angular contact bearing, rotor tail end is arranged with rear bearing, angular contact bearing both sides are provided with bearing drive end bearing bracket enclosing cover and bearing drive end bearing bracket inner cap, bearing both sides are provided with bearing rear end cap enclosing cover and bearing rear end cap inner cap afterwards, sealing ring is provided between bearing drive end bearing bracket enclosing cover and angular contact bearing, sealing ring is fitted in the outside of angular contact bearing, shell includes drive end bearing bracket, rear end cap, top cover and bottom, drive end bearing bracket is arranged at the top of angular contact bearing, rear end cap is arranged at the top of rear bearing, top cover is internally provided with stator, bottom is arranged at below rotor, bottom offers fence type heat emission hole, carbon brush configuration is pressed on the outside of rear end cap.By the threephase asynchronous machine in the application, solve the problems, such as that motor operating bearing subject to damage, radiating be not rapid.

Description

A kind of threephase asynchronous machine

Technical field

It the utility model is related to machine field, more particularly to a kind of threephase asynchronous machine.

Background technology

At present, threephase asynchronous machine on the market in actual applications, motor in prolonged operating, bearing easily by Cause to damage to the influence of shaft current and shaft voltage, and then to bearing, reduce service life, and motor is operating for a long time During can not quick heat radiating only by fan blade.

Utility model content

Based on described above, the application provides a kind of threephase asynchronous machine, axle during solving existing motor long time running The problem of holding subject to damage and not rapid enough radiating.

To use following technical scheme up to this purpose, the utility model：

A kind of threephase asynchronous machine, it is characterised in that including：Rotor, stator, shell and carbon brush configuration, the rotor are first End is arranged with angular contact bearing, and the rotor tail end is arranged with rear bearing, and the angular contact bearing both sides are provided with bearing front end Lid enclosing cover and bearing drive end bearing bracket enclosing cover, the rear bearing both sides are provided with bearing rear end cap enclosing cover and bearing rear end cap enclosing cover, institute State and sealing ring is provided between bearing drive end bearing bracket enclosing cover and the angular contact bearing, the sealing ring is fitted in the angular contact axle The outside held, the shell include drive end bearing bracket, rear end cap, top cover and bottom, and the drive end bearing bracket is arranged at the angular contact axle Between the top held and bearing drive end bearing bracket enclosing cover and bearing drive end bearing bracket inner cap, the drive end bearing bracket, the bearing drive end bearing bracket enclosing cover Fastened between the bearing drive end bearing bracket inner cap by screw, the rear end cap is arranged at top and the bearing of the rear bearing Between rear end cap enclosing cover and bearing rear end cap inner cap, the rear end cap, the bearing rear end cap enclosing cover and the bearing drive end bearing bracket Fastened between inner cap by screw, the top cover is internally provided with stator, and the stator is fixed on inside top cover by screw, institute State bottom to be arranged at below rotor, and rotor described in the bottom semi-surrounding, the bottom offer fence type heat emission hole, institute State carbon brush configuration to be pressed on the outside of rear end cap, the carbon brush configuration and the rotor tail end fit together.

As a kind of preferred scheme of the present utility model, it is provided with after described between bearing and the bearing rear end cap enclosing cover Wavy spring.

As a kind of preferred scheme of the present utility model, suspension ring are provided with the top cover, the dismounting pushed up in convenience.

The beneficial effects of the utility model are：

The application provides a kind of threephase asynchronous machine, by setting carbon brush configuration in rotor tail end, is effectively reduced electricity The damage of shaft current and shaft voltage to bearing caused by machine long time running, and the heat emission hole of increase fence type are quickly dissipated Heat.

Brief description of the drawings

, below will be to the utility model embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model The required accompanying drawing used is briefly described in description.

Fig. 1 is the threephase asynchronous machine schematic diagram that the utility model embodiment provides.

Indicated in figure as follows：

1- rotors；2- stators；3- carbon brush configurations；4- angular contact bearings；Bearing after 5-；6- bearing drive end bearing bracket enclosing covers；7- axles Brought forward end cap inner cap；8- bearing rear end cap enclosing covers；9- bearing rear end cap inner caps；10- sealing rings；11- drive end bearing brackets；12- rear end caps； 13- top covers；14- bottoms；15- fence type heat emission holes；16- wavy springs；17- suspension ring.

Embodiment

It is clearer for the technical scheme and the technique effect that reaches that make technical problem that the utility model solves, use, The technical scheme of the utility model embodiment is described in further detail below in conjunction with accompanying drawing.

As shown in figure 1, the present embodiment provides a kind of threephase asynchronous machine, including：Rotor 1, stator 2, shell and carbon brush dress Put 3, it is characterised in that the head end of rotor 1 is arranged with angular contact bearing 4, and the tail end of rotor 1 is arranged with rear bearing 5, in conventional arrangement before Bearing sets what is be just as afterwards, and angular contact bearing 4 is set in front in present embodiment, and the bearing 5 after tail end setting, is root The change done according to the demand of front and rear working method in practical application, has changed the operating of suitable threephase asynchronous machine more, The both sides of angular contact bearing 4 are provided with bearing drive end bearing bracket enclosing cover 6 and bearing drive end bearing bracket inner cap 7, after the rear both sides of bearing 5 are provided with bearing End cap enclosing cover 8 and bearing rear end cap inner cap 9, sealing ring 10 is provided between bearing drive end bearing bracket enclosing cover 6 and angular contact bearing 4, it is close Seal 10 is fitted in the outside of angular contact bearing 4, by above-mentioned embodiment, completely cuts off angular contact axle first by sealing ring 10 4 contacts with the external world are held, extends the service life of angular contact bearing, secondly, then passes through bearing drive end bearing bracket enclosing cover 6 and bearing front end Lid inner cap 7 also keeps apart angular contact bearing 4 with internal space completely so that angular contact bearing 4 can independent operating, no Influenceed by inside and outside, further extend its service life.

Shell includes drive end bearing bracket 11, rear end cap 12, top cover 13 and bottom 14, and drive end bearing bracket 11 is arranged at angular contact bearing 4 Top and bearing drive end bearing bracket enclosing cover 6 and bearing drive end bearing bracket inner cap 7 between, it can be seen, present embodiment is to sky Between utilization be that fully, what is be bonded between all parts is very close, saves space, drive end bearing bracket 11, axle as far as possible Fastened between brought forward end cap enclosing cover 6 and bearing drive end bearing bracket inner cap 7 by screw, rear end cap 12 be arranged at the top of rear bearing 5 with And between bearing rear end cap enclosing cover 8 and bearing rear end cap inner cap 9, in rear end cap 12, bearing rear end cap enclosing cover 8 and bearing rear end cap Fastened between lid 9 by screw, top cover 13 is internally provided with stator 2, and stator 2 is fixed on inside top cover 13 by screw, bottom 14 are arranged at the lower section of rotor 1, and the semi-surrounding rotor 1 of bottom 14, and bottom 14 offers fence type heat emission hole 15, for motor Heat dissipation problem, it is that afterbody is only provided with fan blade to radiate to motor in conventional arrangement, but can not be in time to turning The head end of son 1 is radiated, and whole rotor 1 can be carried out in shell lower end increase fence type heat emission hole 15 in present embodiment Whole process radiating so that the mode of radiating is more balanced, without causing motor to produce other failures because radiating is unbalanced.

Carbon brush configuration 3 is pressed on the outside of rear end cap 12, and carbon brush configuration 3 and the tail end of rotor 1 fit together.The He of bearing 5 afterwards Wavy spring 16 is provided between bearing rear end cap enclosing cover 8.It is creative in present embodiment to be provided with carbon brush configuration 3, use Wavy spring 16 compresses the tail end that carbon brush configuration 16 is adjacent to rotor 1, and then carbon brush configuration 3 can be utilized to eliminate rotor 1 and operated Caused shaft current and shaft voltage in journey, extend its service life, suspension ring 17 are provided with top cover, increase suspension ring 17 tieing up Quickly motor can be dismantled when repairing, improve the efficiency of work.

Pay attention to, above are only preferred embodiment of the present utility model and institute's application technology principle.Those skilled in the art's meeting Understand, the utility model is not limited to specific embodiment described here, can carried out for a person skilled in the art various bright Aobvious change, readjust and substitute without departing from the scope of protection of the utility model.Therefore, although passing through above example The utility model is described in further detail, but the utility model is not limited only to above example, is not departing from In the case that the utility model is conceived, other more equivalent embodiments can also be included, and the scope of the utility model is by appended Right determine.

Claims (3)

1. A kind of 1. threephase asynchronous machine, it is characterised in that including：Rotor, stator, shell and carbon brush configuration, the rotor head end Angular contact bearing is arranged with, the rotor tail end is arranged with rear bearing, and the angular contact bearing both sides are provided with bearing drive end bearing bracket Enclosing cover and bearing drive end bearing bracket inner cap, the rear bearing both sides are provided with bearing rear end cap enclosing cover and bearing rear end cap inner cap, described Sealing ring is provided between bearing drive end bearing bracket enclosing cover and the angular contact bearing, the sealing ring is fitted in the angular contact bearing Outside, the shell includes drive end bearing bracket, rear end cap, top cover and bottom, and the drive end bearing bracket is arranged at the angular contact bearing Top and bearing drive end bearing bracket enclosing cover and bearing drive end bearing bracket inner cap between, the drive end bearing bracket, the bearing drive end bearing bracket enclosing cover and Fastened between the bearing drive end bearing bracket inner cap by screw, after the rear end cap is arranged at top and the bearing of the rear bearing Between end cap enclosing cover and bearing rear end cap inner cap, in the rear end cap, the bearing rear end cap enclosing cover and the bearing rear end cap Fastened between lid by screw, the top cover is internally provided with stator, and the stator is fixed on inside top cover by screw, described Bottom is arranged at below rotor, and rotor described in the bottom semi-surrounding, and the bottom offers fence type heat emission hole, described Carbon brush configuration is pressed on the outside of rear end cap, and the carbon brush configuration and the rotor tail end fit together.
2. 2. a kind of threephase asynchronous machine according to claim 1, it is characterised in that bearing and the bearing rear end after described Wavy spring is provided between lid enclosing cover.
3. 3. a kind of threephase asynchronous machine according to claim 1, it is characterised in that be provided with suspension ring on the top cover.