CN213151785U

CN213151785U - Improved electric fan motor end cover structure

Info

Publication number: CN213151785U
Application number: CN202021648657.6U
Authority: CN
Inventors: 何家荣; 余国庆
Original assignee: Ningbo Yikade Electrical Appliance Technology Co ltd
Current assignee: Ningbo Yikade Electrical Appliance Technology Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-05-07
Anticipated expiration: 2030-08-10

Abstract

An improved electric fan motor end cover structure comprises an end cover body, an oil-containing bearing and an elastic gland, wherein the middle part of the end cover body is sunken to form a bearing chamber, the inner wall surface of the bearing chamber is a part of a spherical surface, the end cover body is provided with a plurality of clamping hooks formed by stamping, the clamping hooks are uniformly distributed on the periphery of the bearing chamber, the inner end of the oil-containing bearing extends into the bearing chamber, the elastic gland is tightly pressed at the outer end of the oil-containing bearing through an elastic sheet, and the oil-containing bearing is assembled in the bearing chamber by buckling and pressing the edge of the elastic gland through the clamping hooks; the electric fan motor end cover structure of the scheme does not relate to a bearing cover, the elastic gland is directly fixed on the end cover body through the clamping hook, the electric fan motor end cover is simplified through parts, connection and assembly are more convenient and efficient, the oil storage portion is processed on the oil bearing and provides a storage space for lubricating oil of the oil bearing, and the phenomenon that the overflowing redundant lubricating oil scatters when the motor rotates at a high speed is avoided.

Description

Improved electric fan motor end cover structure

Technical Field

The utility model relates to a modified electric fan motor end cover structure.

Background

The traditional electric fan motor end cover generally comprises four components, namely an end cover body, an oil-containing bearing, an elastic gland and a bearing cover, wherein the oil-containing bearing is assembled in a bearing chamber of the end cover body and is pressed by the elastic gland, and the bearing cover is buckled on the end cover body so as to limit the position of the elastic gland; when the motor works, the oil-containing bearing rotates synchronously along with the motor shaft, the oil-containing bearing expands due to heat generated by friction, the pores of the oil-containing bearing are reduced due to thermal expansion, lubricating oil overflows into the bearing gaps to form an oil film, the oil-containing bearing in the electric fan needs to work under the conditions of high speed and low load for a long time, the porosity is high, the problem that the oil content of the oil-containing bearing is reduced along with the use of the motor also exists in the actual working process, and oil stains are easily formed on the end cover body.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists in the above-mentioned problem, the utility model provides a modified electric fan motor end cover structure.

In order to achieve the purpose, the utility model provides an improved electric fan motor end cover structure, including end cover body, oily bearing and elastic gland, end cover body middle part is sunken to form the bearing room, the internal face of bearing room is a part of sphere, the end cover body is last to have a plurality of trips that the punching press formed, the trip equipartition is in the periphery of bearing room, the inner of oily bearing stretches into the bearing room is inside, the elastic gland compresses tightly through the shell fragment in the outer end of oily bearing, oily bearing passes through the trip withhold the border of elastic gland and assemble in the bearing room;

the structure does not relate to a bearing cover, the elastic gland is directly fixed on the end cover body through the clamping hook, and the motor end cover of the electric fan is more convenient and efficient in connection and assembly through simplification of parts.

Preferably, the end cover body is further provided with a plurality of heat dissipation holes, and the heat dissipation holes are uniformly distributed on the outer side of the bearing chamber;

in the technical scheme, the heat dissipation holes play a role in heat dissipation of the motor, and meanwhile, the weight of the end cover body is reduced.

Preferably, a middle hole for a motor shaft to penetrate is processed in the middle of the oil-retaining bearing, and oil storage parts are respectively processed at two ends of the middle hole of the oil-retaining bearing;

in the technical scheme, the oil storage part provides a storage space for the lubricating oil of the oil-containing bearing, so that the phenomenon that the overflowing excessive lubricating oil scatters when the motor rotates at a high speed is avoided.

The utility model discloses beneficial effect for prior art does: the electric fan motor end cover structure does not relate to a bearing cover, the elastic gland is directly fixed on the end cover body through the clamping hook, and the electric fan motor end cover enables connection and assembly to be more convenient and efficient through simplification of parts; the oil-retaining bearing is provided with the oil storage part, and the oil storage part provides a storage space for lubricating oil of the oil-retaining bearing, so that the phenomenon that the overflowing excessive lubricating oil scatters when the motor rotates at a high speed is avoided.

Drawings

Fig. 1 is a top view of an improved motor cover structure of an electric fan according to the present invention;

fig. 2 is a front view of an improved electric fan motor end cover structure of the present invention;

FIG. 3 is an enlarged view of the oil bearing of FIG. 2;

fig. 4 is a schematic view of the elastic gland of fig. 1.

In the figure: 1. an end cap body; 11. a bearing chamber; 12. a hook is clamped; 13. heat dissipation holes; 2. an oil-retaining bearing; 21. A mesopore; 22. an oil storage section; 3. an elastic gland; 31. an elastic sheet.

Detailed Description

As shown in fig. 1, fig. 2 and fig. 3, the embodiment of the present invention provides an improved electric fan motor end cover structure, including an end cover body 1, an oil bearing 2 and an elastic gland 3, wherein the middle portion of the end cover body 1 is recessed to form a bearing chamber 11, the inner wall surface of the bearing chamber 11 is a part of a spherical surface, the end cover body 1 is provided with a plurality of hooks 12 formed by stamping, the hooks 12 are uniformly distributed on the periphery of the bearing chamber 11, the inner end of the oil bearing 2 extends into the bearing chamber 11, the elastic gland 3 is pressed against the outer end of the oil bearing 2 through an elastic sheet 31, and the oil bearing 2 is assembled in the bearing chamber 11 by pressing the edge of the elastic gland 3 through the hooks 12; the end cover body 1 is also provided with a plurality of radiating holes 13, the radiating holes 13 are uniformly distributed at the outer side of the bearing chamber 11, and the radiating holes 13 play a role of radiating and reduce the weight of the end cover body 1; the middle part of the oil-retaining bearing 2 is provided with a middle hole 21 for the motor shaft to penetrate through, the two ends of the middle hole 21 of the oil-retaining bearing 2 are respectively provided with an oil storage part 22, the oil storage parts 22 provide storage space for the lubricating oil of the oil-retaining bearing 2, and the phenomenon that the overflowing excessive lubricating oil scatters when the motor rotates at high speed is avoided.

The electric fan motor end cover structure does not relate to a bearing cover, the elastic gland is directly fixed on the end cover body through the clamping hook, and the electric fan motor end cover enables connection and assembly to be more convenient and efficient through simplification of parts; the oil-retaining bearing is provided with the oil storage part, and the oil storage part provides a storage space for lubricating oil of the oil-retaining bearing, so that the phenomenon that the overflowing excessive lubricating oil scatters when the motor rotates at a high speed is avoided.

When in specific use, the utility model is described with the attached drawings for the convenience of understanding;

the clamping hook is obtained by integrally stamping the end cover body, before assembly, the clamping hook is vertical to the end cover body, the oil-containing bearing can be conveniently placed in the bearing chamber, the elastic pressing cover is pressed above the oil-containing bearing, the clamping hook is subjected to ninety-degree swinging deformation through stamping again, and the clamping hook presses the elastic pressing cover to realize the assembly of the oil-containing bearing in the bearing chamber;

the motor end cover is assembled on the motor stator, when the oil-containing bearing synchronously rotates along with the motor shaft, overflowed lubricating oil forms an oil film outside the oil-containing bearing to play a role in lubrication, redundant lubricating oil can be stored in the oil storage part, scattering of the lubricating oil is avoided, the oil content of the oil-containing bearing is ensured, and long-term normal use of the electric fan motor is ensured.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a modified electric fan motor end cover structure which characterized in that: including end lid body (1), oiliness bearing (2) and elastic gland (3), sunken formation bearing room (11) in end lid body (1) middle part, the internal face of bearing room (11) is the partly of sphere, trip (12) that a plurality of punching presses formed have on end lid body (1), trip (12) equipartition is in the periphery of bearing room (11), the inner of oiliness bearing (2) stretches into inside bearing room (11), elastic gland (3) compress tightly through shell fragment (31) the outer end of oiliness bearing (2), oiliness bearing (2) pass through trip (12) are withheld the outer edge of elastic gland (3) and are assembled in bearing room (11).

2. An improved electric fan motor end cover structure as claimed in claim 1, wherein: a plurality of radiating holes (13) are further formed in the end cover body (1), and the radiating holes (13) are uniformly distributed on the outer side of the bearing chamber (11).

3. An improved electric fan motor end cover structure as claimed in claim 1, wherein: a middle hole (21) for a motor shaft to penetrate is formed in the middle of the oil-retaining bearing (2), and oil storage parts (22) are respectively formed at two ends of the middle hole (21) of the oil-retaining bearing (2).