CN208656518U - Motor - Google Patents

Abstract

The utility model provides a kind of motor.Including rotor and output shaft；Rotor includes: rotor axle sleeve, and output shaft is installed in the centre bore of rotor axle sleeve, and output shaft and rotor axle sleeve are sequentially connected by the first spline drived structure；With rotor core is installed on the outside of rotor axle sleeve；The both ends of the surface of rotor axle sleeve offer annular recess, so that rotor axle sleeve includes inner cylinder portion, outer cylindrical portion and interconnecting piece；Inner cylinder portion is installed on output shaft, and outer cylindrical portion is set to the radial outside of inner cylinder portion, and rotor core is installed on outer cylindrical portion；Interconnecting piece is set between inner cylinder portion and outer cylindrical portion；And the first oil duct for being connected to centre bore and two annular recess is provided in inner cylinder portion and interconnecting piece；There is the second oil duct, and the first oil outlet of connection the second oil duct and the first oil duct on output shaft；The front end of the shell of the stretching motor of output shaft is provided with the second spline drived structure.Motor can fast responding market demand, reduce the exploitation and composition period, increase product flexibility.

Description

Motor

Technical field

The utility model relates to electric machine structure fields, more particularly to a kind of motor.

Background technique

According to New energy automobile motor requirement feature, the requirement of power of motor and torque is larger, while requiring motor volume It is compact, it is light-weight, it is easily manufactured, meet mass production demand.It is (outer that the stator core of existing electric motor of automobile is assemblied in cooling shell Shell) on, the output shaft of electric motor of automobile be press-fitted on rotor core, to be assembled into an entirety, will finally install turning for output shaft Sub- assembly is put into cooling shell, and last capping plate completes installation.But structure is solid between the rotor and output shaft of existing electric motor of automobile Fixed, single rotor can only adapt to a kind of corresponding output shaft, can not match different in the immovable situation of rotor core The output shaft of intensity, poor universality, it is impossible to meet diversifications to require.

Utility model content

The purpose of the utility model is to overcome at least one defects of existing motor, provide a kind of novel motor, Rotor adopts a split structure, and can match the output shaft of varying strength in the case where not changing rotor core, versatility is high.

Specifically, the utility model proposes a kind of motor, which includes rotor and output shaft；The rotor includes:

Rotor axle sleeve, the output shaft are installed in the centre bore of the rotor axle sleeve, the output shaft and the rotor Axle sleeve is sequentially connected by the first spline drived structure；With

Rotor core, the rotor core are installed on the outside of the rotor axle sleeve；Wherein

The both ends of the surface of the rotor axle sleeve all have annular recess, so that the rotor axle sleeve includes inner cylinder portion, outer cylindrical portion And interconnecting piece；The inner cylinder portion is installed on the output shaft, and the outer cylindrical portion is set to the radial outside of the inner cylinder portion, described Rotor core is installed on the outer cylindrical portion；The interconnecting piece is set between the inner cylinder portion and the outer cylindrical portion, to connect State inner cylinder portion and the outer cylindrical portion；And

It is provided in the inner cylinder portion and the interconnecting piece and is connected to the first of the centre bore and two annular recess Oil duct；

There is the second oil duct, and the first of connection second oil duct and first oil duct is fuel-displaced on the output shaft Hole；

The front end of the shell of the stretching motor of the output shaft is provided with the second spline drived structure.

Optionally, first bearing is provided between the output shaft and the drive end bearing bracket of the shell；

Also there is the second oil outlet for being connected to second oil duct, so that oil warp in second oil duct on the output shaft Second oil outlet flows to the first bearing.

Optionally, the end face of rear end of second oil duct from the output shaft is prolonged forward along the axis of the output shaft It stretches.

Optionally, the both ends of the periphery wall of the inner cylinder portion are provided with second bearing, and each second bearing passes through Connector is connected to the shell of the motor.

Optionally, fourth bearing is additionally provided between the rear end of the output shaft and the shell.

Optionally, first oil outlet is set to the front side of the first spline drived structure；And

First oil outlet is connected to the gap of the first spline drived structure itself, to allow second oil duct Interior oil flows to the first spline drived structure through first oil outlet.

Optionally, it is additionally provided with seal groove on the output shaft, is set to the front side of first oil outlet, and described Sealing ring is provided in seal groove.

Optionally, the front end of the outer cylindrical portion is provided with annular projection；And the rotor further include:

First end cover is set between the rotor core and the annular projection；With

Second end cover is installed on the rear end of the outer cylindrical portion, and contacts against with the rotor core.

In the motor of the utility model, since motor adopts a split structure, traditional rotor core is made into broad in the middle Hollow structure, is coupled with rotor axle sleeve, solves the problems, such as that rotor is flexibly matched with output shaft；Variation is reduced to produce In product, rotor punching re-molds production；In the immovable situation of rotor core, the output shaft (one of varying strength can be matched As diameter be change).

Further, if client changes reduction gearbox connection spline size or axial dimension, motor and need to only reform output The spline drived structure of end, so that client's new product can be matched completely.

Rotor axle sleeve is made into dished configuration, can be used for loss of weight.Be made among output shaft one section it is hollow, not only can loss of weight simultaneously Also act as oil duct.It is settable there are two bearing on rotor axle sleeve, it may also set up two bearings on output shaft, may make up and only turn There are two the motors of bearing for sub- axle sleeve；Or, constituting tool there are four the motor of bearing, par wise irrelevance is non-interference, but mutually passes It is dynamic.Being cooperated using spline structure and is driven, transmission efficiency is high, and it is easy for installation, and it is driven stable, small, the low noise of impact.

The motor of the application can fast responding market demand, reduce the exploitation and composition period, increase product flexibility.

According to the accompanying drawings to the detailed description of the utility model specific embodiment, those skilled in the art will be more Add the above-mentioned and other purposes, advantages and features of clear the utility model.

Detailed description of the invention

Some specific realities of the utility model are described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter Apply example.Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that The drawings are not necessarily drawn to scale.In attached drawing:

Fig. 1 is the schematic structure cross-sectional view according to the motor of the utility model one embodiment；

Fig. 2 is the schematic structure cross-sectional view of rotor in the motor according to the utility model one embodiment；

Fig. 3 is the schematic diagram of output shaft in the motor according to the utility model one embodiment.

Specific embodiment

Fig. 1 is the schematic structure cross-sectional view according to the motor of the utility model one embodiment.As shown in Figure 1 and refer to Fig. 2, Fig. 3, the utility model embodiment provide a kind of motor, which includes shell 20, stator 30, rotor 40 and output shaft 50.Stator 30 and rotor 40 are installed in shell 20, and stator 30 is located at the radial outside of rotor 40.50 part of output shaft is located at In shell 20, partially it is located at outside shell 20, specifically, the front end of output shaft 50 is stretched out outside shell 20, forms the defeated of output shaft 50 Outlet.Further, rotor 40 may include rotor axle sleeve 41 and rotor core 41.Output shaft 50 is installed in rotor axle sleeve 41 In heart hole 411, output shaft 50 and rotor axle sleeve 41 are sequentially connected by the first spline drived structure 51.Rotor core 41 is pacified Outside loaded on rotor axle sleeve 41.

The both ends of the surface of rotor axle sleeve 41 all have annular recess, so that rotor axle sleeve 41 includes inner cylinder portion 412, outer cylindrical portion 413 and interconnecting piece 414.Inner cylinder portion 412 is installed on output shaft 50, and outer cylindrical portion 413 is set to the radial outside of inner cylinder portion 412, turns Sub- iron core 41 is installed on outer cylindrical portion 413；Interconnecting piece 414 is set between inner cylinder portion 412 and outer cylindrical portion 413, to connect inner cylinder portion 412 and outer cylindrical portion 413.

The first oil duct 416 for being connected to centre bore 411 and two annular recess is provided in inner cylinder portion 412 and interconnecting piece 414. There is the second oil duct 52, and the first oil outlet 53 of connection the second oil duct 52 and the first oil duct 416 on output shaft 50.Output shaft The front end of the shell 20 of 50 stretching motor is provided with the second spline drived structure 54.

In some embodiments of the utility model, before the first oil outlet 53 may be disposed at the first spline drived structure 51 Side.First oil outlet 53 is connected to the gap of the first spline drived structure 51 itself, with oil in the second oil duct 52 of permission through first Oil outlet 53 flows to the first spline drived structure 51.Optionally, it is additionally provided with seal groove 56 on output shaft 50, is set to first The front side of oil outlet 53, and sealing ring is provided in seal groove 56.

In some embodiments of the utility model, the both ends of the periphery wall of inner cylinder portion 412 are provided with second bearing 60, Each second bearing 60 is connected to the shell 20 of motor by connector, and can making motor tool, there are two the motors of bearing.It is optional Ground is provided with first bearing between output shaft 50 and the drive end bearing bracket of shell 20；It is also set between the rear end and shell 20 of output shaft 50 It is equipped with fourth bearing, so that motor is that there are four the motors of bearing for tool.First bearing and 3rd bearing on output shaft 50 can also Cancel.

Preferably, also there is the second oil outlet 55 of the second oil duct 52 of connection, so that in the second oil duct 52 on output shaft 50 Oil flows to first bearing through the second oil outlet 55.Optionally, the second oil duct 52 is from the end face of the rear end of output shaft 50 along output shaft 50 axis extends forward.

In some embodiments of the utility model, the front end of outer cylindrical portion 413 is provided with annular projection；And rotor 40 also wraps Include first end cover 43 and second end cover 44.First end cover 43 is set between rotor core 41 and annular projection.Second end cover 44 It is installed on the rear end of outer cylindrical portion 413, is contacted against with rotor core 41.

The motor of the utility model can be the oil-cooled motor of the different sizes models such as 60KW, 90KW, 150KW, 300KW.

So far, although those skilled in the art will appreciate that the more of the utility model have been shown and described in detail herein A exemplary embodiment still, still can be according to the utility model public affairs in the case where not departing from the spirit and scope of the utility model The content opened directly determines or derives many other variations or modifications for meeting the utility model principle.Therefore, this is practical new The range of type is understood that and regards as to cover all such other variations or modifications.

Claims (8)

1. a kind of motor, including rotor and output shaft；It is characterized in that, the rotor includes:

Rotor axle sleeve, the output shaft are installed in the centre bore of the rotor axle sleeve, the output shaft and the rotor axle sleeve It is sequentially connected by the first spline drived structure；With

Rotor core, the rotor core are installed on the outside of the rotor axle sleeve；Wherein

The both ends of the surface of the rotor axle sleeve all have annular recess, so that the rotor axle sleeve includes inner cylinder portion, outer cylindrical portion and company Socket part；The inner cylinder portion is installed on the output shaft, and the outer cylindrical portion is set to the radial outside of the inner cylinder portion, the rotor Iron core is installed on the outer cylindrical portion；The interconnecting piece is set between the inner cylinder portion and the outer cylindrical portion, to connect in described Canister portion and the outer cylindrical portion；And

The first oil duct for being connected to the centre bore and two annular recess is provided in the inner cylinder portion and the interconnecting piece；

There is the second oil duct, and the first oil outlet of connection second oil duct and first oil duct on the output shaft；

The front end of the shell of the stretching motor of the output shaft is provided with the second spline drived structure.

2. motor according to claim 1, which is characterized in that

First bearing is provided between the output shaft and the drive end bearing bracket of the shell；

Also there is the second oil outlet for being connected to second oil duct, so that in second oil duct described in oil warp on the output shaft Second oil outlet flows to the first bearing.

3. motor according to claim 1 or 2, which is characterized in that

The end face of rear end of second oil duct from the output shaft extends forward along the axis of the output shaft.

4. motor according to claim 1, which is characterized in that

The both ends of the periphery wall of the inner cylinder portion are provided with second bearing, and each second bearing is connected to by connector The shell of the motor.

5. motor according to claim 2, which is characterized in that

Fourth bearing is additionally provided between the rear end of the output shaft and the shell.

6. motor according to claim 1, which is characterized in that

First oil outlet is set to the front side of the first spline drived structure；And

First oil outlet is connected to the gap of the first spline drived structure itself, oily in second oil duct to allow The first spline drived structure is flowed to through first oil outlet.

7. motor according to claim 6, which is characterized in that

It is additionally provided with seal groove on the output shaft, is set to the front side of first oil outlet, and in the seal groove It is provided with sealing ring.

8. motor according to claim 1, which is characterized in that

The front end of the outer cylindrical portion is provided with annular projection；And the rotor further include:

First end cover is set between the rotor core and the annular projection；With

Second end cover is installed on the rear end of the outer cylindrical portion, and contacts against with the rotor core.