CN205565988U

CN205565988U - Motor spindle

Info

Publication number: CN205565988U
Application number: CN201620167473.5U
Authority: CN
Inventors: 张永华
Original assignee: Yingtan Rui Chi Motor Co Ltd
Current assignee: Yingtan Rui Chi Motor Co Ltd
Priority date: 2016-03-05
Filing date: 2016-03-05
Publication date: 2016-09-07
Anticipated expiration: 2026-03-05

Abstract

The utility model provides a motor spindle, including the secondary shaft to and the primary shaft and the third axle locating these secondary shaft both ends and be connected with this secondary shaft, this primary shaft includes connecting axle that is connected with this secondary shaft and the anti -skidding axle that is connected with this connecting axle, the epaxial draw -in groove that is equipped with of this antiskid. Since be equipped with this antiskid axle among this motor spindle, the epaxial draw -in groove that is equipped with of this antiskid, and so can carry out axial and radical location in this motor spindle to the driving medium, while simple to operate also can not be to this motor spindle's the damage that leads to the fact.

Description

Electric machine main shaft

Technical field

This utility model relates to technical field of motors, particularly to a kind of electric machine main shaft.

Background technology

Electric machine main shaft is one of requisite element in DC brushless motor, and it is by the rotor of motor, fixed The elements such as son, motor housing and end cap support and link together.

Electric machine main shaft great majority of the prior art use the form of multidiameter, its outfan and belt pulley, The driving member such as sprocket wheel or gear connects together, for needing the driven member of power to provide DC brushless motor output Power.It is typically all between outfan and driving member and to fix driven member on the output by key and bolt Radial position and axial location, but use this kind of connected mode, during dismounting and fastening, bolt Damage can be caused in the surface of outfan, cause driving member fixing shakiness on the output, thus need whole Individual electric machine main shaft is replaced.

Utility model content

Based on this, the purpose of this utility model is to provide a kind of main shaft and fixedly mounts convenient motor with driving member Main shaft.

A kind of electric machine main shaft, including the second axle, and is located at these the second axle two ends and is connected with this second axle The first axle and the 3rd axle, this first axle include the connecting shaft that is connected with this second axle and with this connecting shaft phase The anti-slide-bar connected, this anti-slide-bar is provided with draw-in groove.

Further, this is anti-skidding is located in this first the tip of the axis, and this anti-slide-bar includes planar portions, chamfered section And arc sections.

Further, this anti-slide-bar is about crossing this anti-slide-bar axis and plane symmetry vertical with this planar portions.

Further, the distance at the center of this planar portions to this anti-slide-bar axis is more than the 1/2 of this arc sections radius, And less than this arc sections radius.

Further, this chamfered section is located between this planar portions and this arc sections, and this chamfered section and this plane Angle between portion is 145o.

Further, this draw-in groove is located on this anti-slide-bar and near this anti-skidding the tip of the axis, and the cutting of this draw-in groove Face is shaped as rectangle.

Further, the radius of this second axle is more than the radius of this first axle with the 3rd axle.

Further, the length of this first axle is more than the length of this second axle, and the length of this second axle is more than being somebody's turn to do The length of the 3rd axle.

Further, the cross sectional shape of this anti-slide-bar is Else Rule figure than circular.

Above-mentioned electric machine main shaft, owing to being provided with this anti-slide-bar in this electric machine main shaft, this anti-slide-bar is provided with draw-in groove, It is possible to driving member is axially and radially located in this electric machine main shaft, the most easy for installation, the most not This electric machine main shaft can be caused damage.

Accompanying drawing explanation

Fig. 1 is the axonometric chart of electric machine main shaft in this utility model first embodiment.

Fig. 2 is the right view of electric machine main shaft in this utility model first embodiment.

Fig. 3 is the cross-sectional view in this utility model first embodiment at electric machine main shaft A-A.

Fig. 4 is the cross-sectional view in this utility model the second embodiment at electric machine main shaft A-A.

Fig. 5 is the cross-sectional view in this utility model the 3rd embodiment at electric machine main shaft A-A.

Fig. 6 is the cross-sectional view in this utility model the 4th embodiment at electric machine main shaft A-A.

Detailed description of the invention

For the ease of understanding this utility model, below with reference to relevant drawings, this utility model is carried out more comprehensively Description.Accompanying drawing gives some embodiments of the present utility model.But, this utility model can be to be permitted The most different forms realizes, however it is not limited to embodiment described herein.On the contrary, provide these to implement The purpose of example is to make to disclosure of the present utility model more thoroughly comprehensively.

It should be noted that when element is referred to as " being fixedly arranged on " another element, and it can be directly at another yuan On part or element placed in the middle can also be there is.When an element is considered as " connection " another element, and it can To be directly to another element or to may be simultaneously present centering elements.Term as used herein " is hung down Straight ", " level ", "left", "right" and similar statement for illustrative purposes only.

Unless otherwise defined, all of technology used herein and scientific terminology with belong to of the present utility model The implication that those skilled in the art are generally understood that is identical.Institute in description of the present utility model herein The term used is intended merely to describe the purpose of specific embodiment, it is not intended that in limiting this utility model. Term as used herein " and/or " include the arbitrary and all of of one or more relevant Listed Items Combination.

Refer to Fig. 1 to Fig. 3, a kind of electric machine main shaft provided in first embodiment in this utility model, including Second axle 12, and it is located at these the second axle 12 two ends and the first axle 11 being connected with this second axle 12 and Three axles 13.

This first axle 11 includes the connecting shaft 111 being connected with this second axle 12 and is connected with this connecting shaft 111 The anti-slide-bar 112 connect, this anti-slide-bar 112 is provided with draw-in groove 113.This anti-slide-bar 112 is located at this first axle 11 End, this anti-slide-bar 112 includes planar portions 1121, chamfered section 1122 and arc sections 1123, this anti-slide-bar 112 about crossing this anti-slide-bar 112 axis and plane symmetry vertical with this planar portions 1121, this planar portions 1121 Center to this anti-slide-bar 112 axis distance more than this arc sections 1123 radius 1/2, and less than this circle Arc portion 1123 radius.This planar portions 1121 instead of keyway of the prior art, and only need to be prior art The driving members such as middle belt pulley, sprocket wheel or gear change into and the cross sectional shape of this anti-slide-bar 112 with the hole of keyway Identical is poroid, just can remove flat key at ordinary times used when so installing, while can also realize from Moving part radial direction positioning function on this anti-slide-bar 112, installs more convenient.This chamfered section 1122 is located at this and is put down Between face 1121 and this arc sections 1123, it is used for connecting this planar portions 1121 and this arc sections 1123, and Angle between this chamfered section 1122 and this planar portions 1121 is 145o, additionally, this chamfered section 1122 also may be used To remove the stress produced when this anti-slide-bar 112 rotates together with driven member.

This draw-in groove 113 is located on this anti-slide-bar 112 and the end of this anti-slide-bar 112 close, this draw-in groove 113 Cross sectional shape be rectangle, in order to install jump ring.Jump ring is anti-skidding at this by driven member with this connecting shaft 111 Axial restraint is carried out on axle 112.It should be understood that in other embodiments, it is also possible to by this anti-slide-bar 112 End be processed into screw-like, use nut that on this anti-slide-bar 112, driven member is carried out axial restraint.

This second axle 12 is located between this first axle 11 and the 3rd axle 13, be used for installing rotor and with turn The retaining element that son is relevant, and the radius of this second axle 12 is more than this first axle 11 and the half of the 3rd axle 13 Footpath, the length of this first axle 11 more than the length of this second axle 12, the length of this second axle 12 more than this The length of three axles 13.

3rd axle 13 is located at the other end of this second axle 12 and is connected with this second axle 12, is used for installing The end cap of motor or other potted component.

To sum up, in this utility model above-described embodiment, owing to this electric machine main shaft being provided with this anti-slide-bar 112, should Anti-slide-bar 112 is provided with draw-in groove 113, it is possible to carry out driving member axially and radially in this electric machine main shaft Location, the most easy for installation, also this electric machine main shaft will not be caused damage.

Referring to Fig. 4, a kind of electric machine main shaft provided for the second embodiment in this utility model, in the present embodiment Electric machine main shaft more or less the same with the electric machine main shaft in first embodiment, difference is in the present embodiment The cross section of this anti-slide-bar 112 of electric machine main shaft is run-track shaped for similar annular.

Referring to Fig. 5, a kind of electric machine main shaft provided for the second embodiment in this utility model, in the present embodiment Electric machine main shaft more or less the same with the electric machine main shaft in first embodiment, difference is in the present embodiment The cross section of this anti-slide-bar 112 of electric machine main shaft is spline-shaped.

Referring to Fig. 6, a kind of electric machine main shaft provided for the second embodiment in this utility model, in the present embodiment Electric machine main shaft more or less the same with the electric machine main shaft in first embodiment, difference is in the present embodiment The cross section of this anti-slide-bar 112 of electric machine main shaft is triangular shaped.

Summary embodiment, it is possible to understand that, the Section A-A of this anti-slide-bar 112 is shaped as except circle Outside Else Rule figure.

Embodiment described above only have expressed several embodiments of the present utility model, its describe more concrete and In detail, but therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that, For the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to Making some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, this utility model The protection domain of patent should be as the criterion with claims.

Claims

1. an electric machine main shaft, including the second axle, and is located at these the second axle two ends and is connected with this second axle The first axle connect and the 3rd axle, it is characterised in that: this first axle includes the connecting shaft being connected with this second axle And the anti-slide-bar being connected with this connecting shaft, this anti-slide-bar is provided with draw-in groove.

Electric machine main shaft the most according to claim 1, it is characterised in that this is anti-skidding is located in this first axle End, this anti-slide-bar includes planar portions, chamfered section and arc sections.

Electric machine main shaft the most according to claim 2, it is characterised in that this anti-slide-bar is anti-skidding about crossing this Axle axis and the plane symmetry vertical with this planar portions.

Electric machine main shaft the most according to claim 2, it is characterised in that the center of this planar portions is prevented to this The distance of slide-bar axis is more than the 1/2 of this arc sections radius, and is less than this arc sections radius.

Electric machine main shaft the most according to claim 2, it is characterised in that this chamfered section is located at this planar portions And between this arc sections, and the angle between this chamfered section and this planar portions is 145 °.

Electric machine main shaft the most according to claim 1, it is characterised in that this draw-in groove is located on this anti-slide-bar And near this anti-skidding the tip of the axis, the cross sectional shape of this draw-in groove is rectangle.

Electric machine main shaft the most according to claim 1, it is characterised in that the radius of this second axle is more than being somebody's turn to do First axle and the radius of the 3rd axle.

Electric machine main shaft the most according to claim 1, it is characterised in that the length of this first axle is more than being somebody's turn to do The length of the second axle, the length of this second axle is more than the length of the 3rd axle.

Electric machine main shaft the most according to claim 1, it is characterised in that the cross sectional shape of this anti-slide-bar is Else Rule figure than circular.