CN217642980U

CN217642980U - Motor rotor shafting convenient to assembly

Info

Publication number: CN217642980U
Application number: CN202221100200.0U
Authority: CN
Inventors: 刘澜涛; 权利; 路意; 唐扬扬
Original assignee: Shanghai Boqian New Energy Vehicle Technology Co ltd
Current assignee: Shanghai Boqian New Energy Vehicle Technology Co ltd
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-10-21
Anticipated expiration: 2032-05-09

Abstract

The utility model provides a motor rotor shafting convenient to assemble, which comprises a shell, a motor rotor, a first bearing and a bearing pressing plate, wherein the motor rotor and the first bearing are arranged inside the shell; bearing clamp plate cover is established at electric motor rotor's head end, and bearing clamp plate pressure equipment is on first bearing, and bearing clamp plate passes through bolt fixed mounting on the casing, and the casing both sides are equipped with primary shaft bearing, secondary shaft bearing respectively, and primary shaft bearing is installed in primary shaft bearing, is equipped with the secondary shaft bearing in the secondary shaft bearing, and electric motor rotor's tail end cover is equipped with the secondary shaft bearing, the utility model discloses a bearing clamp plate presses primary shaft bearing dress on the casing to realize whole rotor shafting axial fixity, the utility model discloses a structural optimization realizes rotor shaft convenient assembling, and shafting axial fixity is convenient.

Description

Motor rotor shafting convenient to assembly

Technical Field

The utility model relates to an electric drive technical field especially relates to a motor rotor shafting convenient to assembly.

Background

In electric drives, the bearings at the two ends of the rotor of the motor are usually fixed at one end and floating at the other end, and the bearings at the fixed end are usually connected with the shell through a snap ring or an interference fit to realize axial fixation.

However, in some structures, the rotor shaft system is installed in the shell without an operation space for installing the clamping ring. If the interference fit mode is adopted, the rotor shaft needs to be pressed and assembled by a press, the process is complex, and most importantly, the bearing roller raceway is stressed and the bearing is damaged in the pressing and assembling process.

The utility model provides an electric motor rotor shafting convenient to assembly can realize rotor shaft convenient assembling, and shafting axial fixity is convenient.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art, an object of the utility model is to provide an electric motor rotor shafting convenient to assembly, through configuration optimization, realize rotor shaft convenient assembling, shafting axial fixity is convenient.

In order to achieve the above and other related objects, the present invention provides a motor rotor shafting convenient for assembly, which includes a housing, a motor rotor and a first bearing, wherein the motor rotor and the first bearing are installed inside the housing, and the first bearing is sleeved on the head end of the motor rotor; the motor rotor structure is characterized by further comprising a bearing pressing plate, the head end of the motor rotor is sleeved with the bearing pressing plate, the bearing pressing plate is pressed on the first bearing, and the bearing pressing plate is fixedly installed on the shell through bolts.

The motor rotor shaft system convenient to assemble is characterized in that a first bearing seat and a second bearing seat are respectively arranged on two sides of the shell, the first bearing is installed in the first bearing seat, and the second bearing is arranged in the second bearing seat; the second bearing is sleeved at the tail end of the motor rotor.

The conveniently-assembled motor rotor shafting is characterized in that the first bearing seat and the bearing pressing plate are respectively provided with corresponding threaded holes, the bolt penetrates through the threaded holes to extend out of the shell, and one end of the bolt extending out of the shell is provided with a nut.

The conveniently-assembled motor rotor shaft system is characterized in that a gasket is arranged between the head of the bolt and the bearing pressing plate.

The conveniently-assembled motor rotor shafting is characterized in that a bearing assembling groove is formed in the bearing pressing plate, and the bearing assembling groove is in interference fit with the outer circle of the first bearing.

As above, the utility model discloses an electric motor rotor shafting convenient to assembly has following beneficial effect:

the utility model relates to a convenient-to-assemble motor rotor shafting, which comprises a shell, a motor rotor, a bearing and a bearing pressing plate, wherein the motor rotor and the bearing are arranged inside the shell; bearing clamp plate cover is established at electric motor rotor's head end, and bearing clamp plate pressure equipment is on first bearing, and bearing clamp plate passes through bolt fixed mounting on the casing, and the casing both sides are equipped with primary shaft bearing, secondary shaft bearing respectively, and primary shaft bearing is installed in primary shaft bearing, is equipped with the secondary shaft bearing in the secondary shaft bearing, and electric motor rotor's tail end cover is equipped with the secondary shaft bearing, the utility model discloses a bearing clamp plate presses primary shaft bearing dress on the casing to realize whole rotor shafting axial fixity, the utility model discloses a structural optimization realizes rotor shaft convenient assembling, and shafting axial fixity is convenient.

Drawings

Fig. 1 is a schematic view of an electric machine rotor shaft system convenient to assemble according to an embodiment of the present invention;

fig. 2 is a schematic view of a bearing pressing plate of an electric motor rotor shafting convenient to assemble in the embodiment of the present invention;

fig. 3 is a schematic view illustrating an installation of a bearing pressing plate and a bearing of an electric motor rotor shafting convenient to assemble according to an embodiment of the present invention;

fig. 4 is a schematic view illustrating an installation of a bearing pressing plate of an electric motor rotor shafting and an electric motor rotor, which is convenient to assemble in an embodiment of the present invention;

fig. 5 is a schematic view of an electric machine rotor shafting convenient to assemble according to an embodiment of the present invention.

Element number description:

1. a housing; 2. a motor rotor; 3. a first bearing; 4. a bearing pressure plate; 5. a bolt; 6. a first bearing housing; 7. a second bearing housing; 8. a second bearing; 9. a nut; 10. and the bearing is provided with a groove.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1 to 5. It should be understood that the structure, proportion, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by the people skilled in the art, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial technical significance, and the modification of any structure, the change of proportion relation or the adjustment of size should still fall within the scope which can be covered by the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Referring to fig. 1 to 5, a motor rotor 2 shaft system convenient to assemble includes a housing 1, a motor rotor 2 and a first bearing 3, the motor rotor 2 and the first bearing 3 are installed inside the housing 1, and the first bearing 3 is sleeved at the head end of the motor rotor 2; the motor rotor comprises a shell 1, a first bearing 3 and a bearing pressing plate 4, wherein the bearing pressing plate 4 is sleeved at the head end of the motor rotor 2, the bearing pressing plate 4 is pressed on the first bearing 3, and the bearing pressing plate 4 is fixedly installed on the shell through a bolt 5.

Furthermore, a first bearing seat 6 and a second bearing seat 7 are respectively arranged on two sides of the shell 1, the first bearing 3 is installed in the first bearing seat 6, and a second bearing 8 is arranged in the second bearing seat 7; the tail end of the motor rotor 2 is sleeved with a second bearing 8.

Furthermore, corresponding threaded holes are respectively formed in the first bearing seat 6 and the bearing pressure plate 4, the bolt 5 penetrates through the threaded holes to extend out of the shell 1, and a nut 9 is arranged at one end, extending out of the shell 1, of the bolt 5.

Furthermore, a gasket is arranged between the head of the bolt 5 and the bearing pressure plate 4.

Further, a bearing assembling groove 10 is formed in the bearing pressing plate 4, and the bearing assembling groove 10 is in interference fit with the outer circle of the first bearing 3.

Specifically, when assembling, the first bearing 3 and the bearing pressing plate 4 are pressed together to form a first sub-assembly, then the bearing pressing plate 4 sub-assembly is pressed on the motor rotor 2 to form a second sub-assembly, and finally when the second sub-assembly is installed in the shell 1, the first bearing 3 enters the first bearing 3 installation seat, the bolt 5 on the bearing pressing plate 4 is inserted into the threaded hole, and after the nut is assembled outside the shell 1, the whole rotor shaft system is axially fixed.

To sum up, the utility model provides a 2 shafting of electric motor rotor convenient to assembly through bearing clamp plate 4 with 3 pressure equipments of primary shaft bearing on casing 1 to realize whole rotor shafting axial fixity, the utility model discloses a structural optimization realizes rotor shaft convenient assembling, and shafting axial fixity is convenient. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A motor rotor shafting convenient to assemble comprises a shell, a motor rotor and a first bearing, wherein the motor rotor and the first bearing are arranged in the shell, and the first bearing is sleeved at the head end of the motor rotor; the motor rotor is characterized by further comprising a bearing pressing plate, the bearing pressing plate is sleeved at the head end of the motor rotor, the bearing pressing plate is pressed on the first bearing, and the bearing pressing plate is fixedly installed on the shell through bolts.

2. The easy-to-assemble electric motor rotor shaft system of claim 1, wherein a first bearing seat and a second bearing seat are respectively disposed on two sides of the housing, the first bearing is installed in the first bearing seat, and a second bearing is disposed in the second bearing seat; the second bearing is sleeved at the tail end of the motor rotor.

3. The electric motor rotor shafting convenient to assemble as claimed in claim 2, wherein corresponding threaded holes are respectively formed in the first bearing seat and the bearing pressure plate, the bolts extend out of the shell through the threaded holes, and nuts are arranged at ends of the bolts extending out of the shell.

4. The easy-to-assemble electric motor rotor shaft system of claim 3, wherein a gasket is disposed between the head of the bolt and the bearing pressure plate.

5. The conveniently-assembled motor rotor shafting as claimed in claim 1, wherein a bearing assembly groove is formed in the bearing pressing plate, and the bearing assembly groove is in interference fit with an outer circle of the first bearing.