CN219220808U

CN219220808U - Motor spindle

Info

Publication number: CN219220808U
Application number: CN202223159950.8U
Authority: CN
Inventors: 陈建勇
Original assignee: Zhejiang Greenco Industry Co ltd
Current assignee: Zhejiang Greenco Industry Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-06-20
Anticipated expiration: 2032-11-28

Abstract

The application discloses motor spindle, it belongs to the air pump field. A housing having an interior cavity for mounting the impeller spindle; an impeller mounted to an end of the impeller main shaft; the fan blade cover is sleeved on the shell and positioned at one end of the impeller; the positioning key is arranged on the impeller; the limiting piece is fixedly arranged on the impeller; the side wall of the impeller main shaft is provided with a positioning groove along the axial direction, and the positioning key is inserted into the positioning groove so that the impeller is limited in the circumferential direction; the side wall of the impeller shaft is provided with a limiting groove along the circumferential direction, and the limiting piece is matched with the limiting groove so that the impeller is limited in the axial direction. The motor spindle has the beneficial effects of providing a motor spindle capable of being positioned accurately.

Description

Motor spindle

Technical Field

The application relates to the field of air pumps, in particular to an air pump motor spindle.

Background

In the prior art products, the air pump is driven by a motor; in the motor, a structure where an impeller is located is generally used as a unit stage for generating pressure;

for example, patent number (CN 201922187042.1) describes an impeller for a peripheral pump, and the alignment structure includes: the specific structure of the fastening component is as follows: the outer bolt is provided with an axial threaded hole, the inner bolt is connected with the outer bolt in the same axial direction in a spiral mode, the outer wall of the outer bolt is provided with an external thread, the inner wall of the clamping hole is provided with an internal thread, and the external thread of the outer bolt is in spiral fit connection with the internal thread of the clamping hole;

in the structure of the patent document, the connection mode of the impeller and the main shaft is fixed through an outer bolt and an inner bolt, which is time-consuming;

it is therefore necessary to set a motor spindle.

Disclosure of Invention

The content of the present application is intended to introduce concepts in a simplified form that are further described below in the detailed description. The section of this application is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

In order to solve the technical problems mentioned in the background section above, some embodiments of the present application provide a motor spindle, a housing having an interior cavity for mounting an impeller spindle;

the impeller is arranged at the end part of the impeller main shaft;

the fan blade cover is sleeved on the shell and positioned at one end of the impeller;

the positioning key is arranged on the impeller;

the limiting piece is fixedly arranged on the impeller;

the side wall of the impeller main shaft is provided with a positioning groove along the axial direction, and a positioning key is inserted into the positioning groove so that the impeller is limited in the circumferential direction; the side wall of the impeller shaft is provided with a limit groove along the circumferential direction, and the limit piece is matched with the limit groove so that the impeller is limited in the axial direction; therefore, the impeller can be installed only by inserting the impeller main shaft into the impeller, and convenience is improved.

Further, the impeller consists of a disc and a plurality of blades;

the middle surface of the disc is provided with an assembly hole matched with the impeller main shaft at the center position;

the impeller main shaft consists of an assembly shaft and an optical axis;

wherein the fitting shaft is inserted into the fitting hole so as to form a fit.

Further, the positioning groove penetrates through the concave part of the side wall of the assembly shaft and penetrates through the positioning groove towards the end part of the assembly shaft;

the inner wall of the assembly hole is partially protruded to form a positioning key, and the width and the thickness of the positioning key are the same as those of the positioning groove.

Further, the hole wall part of the assembly hole is concave to form a step;

the limiting piece includes: the elastic plate is arranged on the surface of the step, and the limiting part is arranged on the surface of the elastic plate;

wherein, the limiting part is arranged at the protruding part in the radial direction of the surface of the elastic plate; the limit part corresponds to the limit groove.

Further, the side of the limit part, which is close to the impeller main shaft, starts chamfering.

Further, the surface of the elastic plate is flush with the wall of the assembly hole.

Further, the limit groove extends one circle along the circumferential direction of the fitting shaft.

Further, a limiting surface is arranged at the joint of the assembly shaft and the optical axis;

the assembly shaft is inserted into the assembly hole so that the limiting surface contacts with the orifice of the assembly hole.

The beneficial effects of this application lie in: a motor spindle capable of being positioned accurately is provided.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application and to provide a further understanding of the application with regard to the other features, objects and advantages of the application. The drawings of the illustrative embodiments of the present application and their descriptions are for the purpose of illustrating the present application and are not to be construed as unduly limiting the present application.

In addition, the same or similar reference numerals denote the same or similar elements throughout the drawings. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale.

In the drawings:

FIG. 1 is an overall schematic diagram according to an embodiment of the present application;

FIG. 2 is an overall schematic exploded view according to an embodiment of the present application;

FIG. 3 is a schematic structural view of a portion of an embodiment, primarily showing the impeller and impeller spindle assembly configuration;

FIG. 4 is a schematic structural view of a portion of an embodiment, primarily illustrating the impeller spindle configuration;

FIG. 5 is a schematic structural view of a portion of an embodiment, primarily showing the impeller configuration;

fig. 6 is a schematic structural view of a part of the embodiment, mainly showing the stopper structure.

Reference numerals:

1. a housing; 11. an inner cavity;

2. an impeller main shaft; 21. assembling a shaft; 22. an optical axis; 23. a limiting surface; 211. a positioning groove; 212. a limit groove;

3. a fan blade cover; 31. a dust screen;

4. an impeller; 41. a disc; 42. a blade; 411. a fitting hole; 412. a positioning key; 413. a step;

5. a limiting piece; 51. an elastic plate; 52. a limit part; 521. chamfering.

Detailed Description

Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.

It should be noted that, for convenience of description, only the portions related to the present utility model are shown in the drawings. Embodiments of the present disclosure and features of embodiments may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units.

It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be understood as "one or more" unless the context clearly indicates otherwise.

The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Impeller 4 main shaft 2 rapid Assembly structure includes: a shell 1, an impeller 4 and a fan blade cover 3;

the shell 1 is provided with an inner cavity 11 for installing the main shaft 2 of the impeller 4, and the axis of the main shaft 2 of the impeller 4 is coaxially arranged with the main shaft of the inner cavity 11; more specifically, the main shaft 2 of the impeller 4 is composed of an assembly shaft 21 and an optical axis 22; the diameter of the fitting shaft 21 is smaller than the diameter of the optical axis 22; the impeller 4 is installed on the assembly shaft 21, wherein, the casing 1 is located the one end cover of impeller 4 and is equipped with the flabellum cover 3, offers dust screen 31 on the flabellum cover 3 for heat dissipation and dustproof.

The impeller 4 consists of a disc 41 and a plurality of blades 42; wherein the blades 42 are uniformly distributed along the circumferential direction of the disc 41; the surface of the disc 41 and at the center position is provided with an assembly hole 411 for inserting the assembly hole 411; more specifically, the joint of the assembly shaft 21 and the optical axis 22 is provided with a limiting surface 23, and after the assembly shaft 21 is inserted into the assembly hole 411, the limiting surface 23 is abutted against the orifice of the assembly hole 411; after the assembly shaft 21 is inserted into the assembly hole 411, the end face of the assembly shaft 21 is flush with the surface of the disc 41;

more specifically, the sidewall of the fitting shaft 21 is recessed and penetrates in the direction of the end of the fitting shaft 21 to form a positioning groove 211; the inner wall portion of the fitting hole 411 is protruded to form a positioning key 412, and the width and thickness of the positioning key 412 are the same as those of the positioning groove 211; when the fitting shaft 21 is inserted into the fitting hole 411, the positioning key 412 is inserted into the positioning key 412 so that the fitting hole 411 shaft is restrained in the inner circumferential direction of the fitting hole 411;

more specifically, the surface of the fitting shaft 21 is formed with a limit groove 212, and the limit groove 212 extends one circle in the circumferential direction of the fitting shaft 21; the hole wall part of the assembly hole 411 is concave to form a step 413, and a limiting piece 5 matched with the limiting groove 212 is arranged on the step 413;

more specifically, the stopper 5 includes: an elastic plate 51 provided on the surface of the step 413 and a stopper 52 provided on the surface of the elastic plate 51; wherein the limiting part 52 is opposite to the protruding part in the radial direction of the surface of the elastic plate 51; the limit part 52 corresponds to the limit groove 212, and the side of the limit part 52, which is close to the main shaft 2 of the impeller 4, starts to be chamfered 521; the surface of the elastic plate 51 is level with the hole wall of the assembly hole 411; wherein, after the assembly shaft 21 is inserted into the assembly hole 411, the surface of the chamfer 521 is propped against the side edge of the assembly shaft 21, so as to drive the elastic plate 51 to give the limit part 52 elastic force which always props against the assembly shaft 21; after the limiting part 52 is inserted into the limiting groove 212, the surface of the elastic plate 51 is tightly attached to the surface of the assembly shaft 21; thus, the fitting shaft 21 is restrained in the axial direction after being inserted into the fitting hole 411.

The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the utility model in the embodiments of the present disclosure is not limited to the specific combination of the above technical features, but encompasses other technical features formed by any combination of the above technical features or their equivalents without departing from the spirit of the utility model. Such as the above-described features, are mutually substituted with (but not limited to) the features having similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A motor spindle comprising:

a housing having an interior cavity for mounting the impeller spindle;

an impeller mounted to an end of the impeller main shaft;

the method is characterized in that:

the motor spindle further includes:

the positioning key is arranged on the impeller;

the limiting piece is fixedly arranged on the impeller;

the side wall of the impeller main shaft is provided with a positioning groove along the axial direction, and the positioning key is inserted into the positioning groove so that the impeller is limited in the circumferential direction; the side wall of the impeller shaft is provided with a limiting groove along the circumferential direction, and the limiting piece is matched with the limiting groove so that the impeller is limited in the axial direction.

2. A motor spindle according to claim 1, wherein:

the impeller consists of a disc and a plurality of blades;

the surface of the disc is provided with an assembly hole matched with the impeller main shaft at the center;

the impeller main shaft comprises an assembly shaft;

3. A motor spindle according to claim 2, wherein:

the positioning groove penetrates through the concave part of the side wall of the assembly shaft and penetrates through the positioning groove towards the end part of the assembly shaft;

the inner wall of the assembly hole is partially protruded to form the positioning key, and the width and the thickness of the positioning key are the same as those of the positioning groove.

4. A motor spindle according to claim 2, wherein:

the hole wall part of the assembly hole is concave to form a step;

wherein, the limit part is arranged at the surface radial direction of the elastic plate and is opposite to the protruding part; the limiting part corresponds to the limiting groove.

5. The motor spindle of claim 4, wherein:

and one side of the limiting part, which is close to the impeller main shaft, is provided with a chamfer angle.

6. A motor spindle according to claim 2, wherein:

the limiting groove extends for a circle along the circumferential direction of the assembly shaft.

7. A motor spindle according to claim 2, wherein:

the impeller main shaft further comprises an optical axis;

the joint of the assembly shaft and the optical axis is provided with a limiting surface;

the assembly shaft is inserted into the assembly hole so that the limiting surface is contacted with the orifice of the assembly hole.