CN214154185U

CN214154185U - Motor rotor fixing device

Info

Publication number: CN214154185U
Application number: CN202022629226.1U
Authority: CN
Inventors: 周明; 吴进; 丁祥根; 李育
Original assignee: Shanghai Automobile Gear Works
Current assignee: Shanghai Automobile Gear Works
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-09-07
Anticipated expiration: 2030-11-13

Abstract

An electric machine rotor fixture comprising: motor shaft, pivot ring flange, rotor core, bolt and rotor clamp plate, wherein: the rotating shaft flange is arranged on the motor shaft, and the rotor pressing plates for removing dynamic balance are symmetrically arranged on two sides of the rotor core and are arranged on the rotating shaft flange through bolts; the motor shaft is hollow structure, and the outside of its axle wall surface is equipped with axial spacing step and first D font key. The utility model discloses a mode that the bolt adds the pivot ring flange is fixed rotor clamp plate and to rotor core, and conventional nut is fixed relatively, clamping ring riveting fixation's axial length all will be some short, simple structure, and the installation is stable, has reduced driving motor's installation volume.

Description

Motor rotor fixing device

Technical Field

The utility model relates to a technique in driving motor field specifically is an electric motor rotor fixing device.

Background

In the last 10 years, the lightweight automobile industry in China has been rapidly developed, and even the lightweight level of a part of autonomous brand automobiles reaches the international leading level. The light weight is not only a new material or an advanced technology, but also an important technical index for vehicle type research and development, and the light weight must be synchronously developed, implemented and controlled in the research and development period of the whole vehicle type. The lightweight technology mainly has three major directions, namely new material lightweight, advanced technology lightweight and optimized structure lightweight, and the 3 directions complement each other and are mutually constrained and need to be considered in balance to realize the effective development of lightweight automobiles.

In the new energy automobile industry, a driving motor develops towards high speed, light weight and miniaturization, the light weight is used as an important optimization index, the important function of improving the comprehensive endurance capacity of the new energy automobile is played, and the size of the motor is strictly required.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is not enough to the above-mentioned that prior art exists, provides an electric motor rotor fixing device, adopts the bolt to fix rotor clamp plate and to rotor core with the mode of pivot ring flange, and conventional nut is fixed relatively, clamping ring riveting fixation's axial length all will be some short, simple structure, and the installation is stable, has reduced driving motor's installation volume.

The invention is realized by the following technical scheme:

the utility model discloses a: motor shaft, pivot ring flange, rotor core, bolt and rotor clamp plate, wherein: the rotating shaft flange is arranged on the motor shaft, and the rotor pressing plates are symmetrically arranged on two sides of the rotor core and arranged on the rotating shaft flange through bolts.

The motor shaft be hollow structure, the outside of its axle wall surface is equipped with spacing step of axial and a D font key, wherein: the axial limiting step is arranged on the wall surface of the shaft, and the first D-shaped keys are symmetrically arranged on the horizontal outer side of the wall surface of the shaft.

The pivot ring flange include: screw hole, axial retaining ring and second D font key, wherein: the axial retainer ring is arranged on the motor shaft, the threaded holes are symmetrically arranged on the periphery of the axial retainer ring and matched with the bolts, and the second D-shaped key is arranged on the upper side and the lower side of the inner ring of the axial retainer ring.

Technical effects

Compared with the prior art, the utility model discloses a mode that the bolt adds the pivot ring flange is fixed rotor clamp plate and to rotor core, and conventional nut is fixed relatively, clamping ring riveting fixation's axial length all will be short a little, simple structure, and the installation is stable, has reduced driving motor's installation volume.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a schematic view of a motor shaft structure;

wherein: a is a front view, and b is a left view;

FIG. 4 is a schematic view of a flange plate of the rotating shaft;

in the figure: a is a perspective view; b is a front view; c is a sectional view;

FIG. 5 is a schematic view of a rotor platen configuration;

in the figure: motor shaft 1, pivot ring flange 2, rotor core 3, bolt 4, rotor clamp plate 5, axial spacing step 6, axle wall 7, first D font key 8, screw hole 9, axial retaining ring 10, second D font key 11, through-hole 12.

Detailed Description

As shown in fig. 1, the present embodiment relates to a motor rotor fixing device, which includes: motor shaft 1, pivot ring flange 2, rotor core 3, bolt 4 and rotor clamp plate 5, wherein: the rotating shaft flange plate 2 is arranged on the motor shaft 1, and the rotor pressing plates 5 are symmetrically arranged on two sides of the rotor core 3 and arranged on the rotating shaft flange plate 2 through bolts 4 and used for removing dynamic balance.

As shown in fig. 2 and 3, the motor shaft 1 is a hollow structure, and an axial limiting step 6 and a first D-shaped key 8 are arranged outside a shaft wall surface 7 of the motor shaft, wherein: the axial limiting step 6 is arranged on the shaft wall surface 7, and the first D-shaped keys 8 are symmetrically arranged on the horizontal outer side of the shaft wall surface 7.

The first D-shaped key 8 is matched with the rotor core 3 in shape for limiting.

As shown in fig. 4, the shaft flange 2 includes: threaded hole 9, axial retaining ring 10 and second D font key 11, wherein: axial retaining ring 10 sets up on motor shaft 1, and screw hole 9 symmetry sets up in axial retaining ring 10 a week and cooperatees with the bolt, and second D font key 11 sets up in axial retaining ring 10 inner ring downside.

And the second D-shaped key 11 is matched with the axial limiting step 6 in shape to limit the rotating flange 2.

As shown in fig. 5, the rotor pressing plate 5 is an annular structure, and a through hole 12 is formed in the annular belt.

The foregoing embodiments may be modified in various ways by those skilled in the art without departing from the spirit and scope of the present invention, which is not limited by the above embodiments but is to be accorded the full scope defined by the appended claims, and all such modifications and variations are within the scope of the invention.

Claims

1. An electric machine rotor fixture, comprising: motor shaft, pivot ring flange, rotor core, bolt and rotor clamp plate, wherein: the rotating shaft flange is arranged on the motor shaft, and the rotor pressing plates for removing dynamic balance are symmetrically arranged on two sides of the rotor core and are arranged on the rotating shaft flange through bolts;

the motor shaft is of a hollow structure, and an axial limiting step and a first D-shaped key are arranged outside the wall surface of the motor shaft.

2. The motor rotor fixing device of claim 1, wherein the first D-shaped key is symmetrically arranged on the horizontal outer side of the shaft wall surface and matched with the shape of the rotor core to limit the position.

3. The motor rotor fixture as claimed in claim 1, wherein said shaft flange comprises: screw hole, axial retaining ring and second D font key, wherein: the axial retainer ring is arranged on the motor shaft, the threaded holes are symmetrically arranged on the periphery of the axial retainer ring and matched with the bolts, and the second D-shaped key is arranged on the upper side and the lower side of the inner ring of the axial retainer ring.

4. A motor rotor mounting apparatus as claimed in claim 3, wherein the axial stop step is provided on the shaft wall surface, and the second D-shaped key is shaped to fit the axial stop step to stop the flange of the shaft.

5. The motor rotor fixing device of claim 1, wherein the rotor pressing plate has a ring-shaped structure, and the ring-shaped structure is provided with a through hole.