CN218958670U

CN218958670U - Motor end cover of industrial fan

Info

Publication number: CN218958670U
Application number: CN202320063647.3U
Authority: CN
Inventors: 胡建兵; 陈时达
Original assignee: Baomi Permanent Magnet Wenzhou Fan Manufacturing Co ltd
Current assignee: Baomi Permanent Magnet Wenzhou Fan Manufacturing Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-05-02
Anticipated expiration: 2033-01-06

Abstract

The utility model discloses a motor end cover of an industrial fan, which comprises an end cover main body, wherein the center of the end cover main body is provided with a shaft hole for a motor shaft to pass through, and a plurality of mounting holes for screws to pass through are distributed on the end cover main body in a circumferential array; the upper end face of the end cover main body is uniformly provided with a plurality of limiting grooves for embedding the fan blade connecting parts along the circumferential direction, and a group of end cover holes for the connecting screws to pass through are formed in the end cover main body at positions corresponding to the inside of each limiting groove. The fan has a limiting and correcting structure, is convenient for installing the fan blades, and can improve the stability of the fan blade installing structure, thereby ensuring the running safety of the fan.

Description

Motor end cover of industrial fan

Technical Field

The present utility model relates to an industrial fan, and more particularly, to a motor end cover of an industrial fan.

Background

At present, the flabellum that industrial fan used adopts the great metal material of weight to support generally, motor end cover promptly, and motor end cover and flabellum are fixed through the screw generally, because motor end cover does not have spacing proof structure, must aim at the end cover hole of motor end cover and the flabellum hole on the flabellum connecting portion during the installation, just can wear the screw and establish and lock through the nut, and installation effectiveness is low, and is inconvenient, moreover, at the during operation, the fan leaf high-speed rotation, and motor end cover produces powerful centrifugal force, can make the connection of flabellum connecting portion and motor end cover produce not hard up, produces the potential safety hazard.

Disclosure of Invention

The utility model aims to provide a motor end cover of an industrial fan, which is provided with a limiting and correcting structure, so that fan blades can be conveniently installed, and meanwhile, the stability of the fan blade installing structure can be improved, thereby ensuring the running safety of the fan.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the motor end cover of the industrial fan comprises an end cover main body, wherein a shaft hole for a motor shaft to pass through is formed in the center of the end cover main body, and a plurality of mounting holes for screws to pass through are distributed on the end cover main body in a circumferential array; the upper end face of the end cover main body is uniformly provided with a plurality of limiting grooves for embedding the fan blade connecting parts along the circumferential direction, and a group of end cover holes for the connecting screws to pass through are formed in the end cover main body at positions corresponding to the inside of each limiting groove.

Through adopting above-mentioned technical scheme, set up the spacing groove that is used for supplying flabellum connecting portion embedding on the up end of end cover main part, set up the end cover hole in the spacing groove simultaneously, only need correspond on flabellum connecting portion and set up the flabellum hole, when the installation, can realize the automatic alignment in end cover hole and flabellum hole to the quick pass of connecting screw, and lock through the nut, can show and promote installation effectiveness, it is very convenient to operate. In addition, the limiting groove has the effect of limiting the fan blades, the stability of the fan blade mounting structure is improved, and the fan blade connecting portion and the motor end cover are prevented from being connected to loose when the fan works, so that the running safety of the fan is guaranteed.

The utility model is further characterized in that a plurality of boss parts which are equivalent to the limit grooves in number are uniformly arranged on the upper end face of the end cover main body along the circumferential direction, the limit grooves are formed in the corresponding boss parts, and the height of the inner ends of the limit grooves is higher than that of the upper end face of the end cover main body.

By adopting the technical scheme, the processing of the limit groove is greatly facilitated.

The utility model is further provided with a positioning groove at the position corresponding to the inner end edge of each limiting groove on the end cover main body.

Through adopting above-mentioned technical scheme, through set up the constant head tank in the spacing inslot of end cover main part, set up the location arch on the flabellum connecting portion and agree with mutually with this constant head tank, further fix a position the flabellum, promoted the fastness of flabellum installation greatly.

The utility model is further provided with an arc groove protruding outwards at the corner of the positioning groove.

Through adopting above-mentioned technical scheme, the circular arc groove not only is convenient for in the spacing groove of flabellum connecting portion embedding end cover main part, when dismantling the flabellum moreover, can insert the instrument in the circular arc groove with flabellum connecting portion prizing out, the dismantlement operation of flabellum of being convenient for.

The utility model further provides that the number of the end cover holes of each group is 3, and the end cover holes of each group are distributed in the corresponding limit groove at equal intervals along the radial direction of the end cover main body.

Through adopting above-mentioned technical scheme, 3 screws are a set of, utilize the multiunit screw to install the flabellum on the end cover main part respectively, connect the steadiness good, difficult not hard up.

The utility model further provides that the end cover hole is a counter bore.

Through adopting above-mentioned technical scheme, can effectively play the effect of hiding the connecting screw, promote the holistic pleasing to the eye degree of fan.

The utility model is further characterized in that the lower end face of the end cover main body is provided with the reinforcing ribs, and the reinforcing ribs comprise a plurality of concentric circular ribs, radial ribs distributed in a circumferential array and small circular ribs arranged at the outer end of the end cover hole.

Through adopting above-mentioned technical scheme, not only can effectively promote holistic intensity of motor end cover, make it can not take place to warp in long-term use, it has increased the area of contact of motor end cover and air moreover, has played good radiating effect.

The utility model is further characterized in that one end of the end cover main body corresponding to the shaft hole is provided with a mounting groove, a bearing matched with the motor shaft is embedded in the mounting groove, and the outer ring of the bearing is in interference fit with the inner periphery of the mounting groove.

Through adopting above-mentioned technical scheme, can reduce the friction of motor shaft and end cover main part, not only can promote the life of fan, can reduce the operation energy consumption of fan moreover.

Drawings

FIG. 1 is a front view of the entire present utility model;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a rear elevational view of the entire present utility model;

FIG. 4 is a first view perspective of the overall utility model;

FIG. 5 is a second perspective view of the present utility model as a whole;

FIG. 6 is a first perspective view of the present utility model integrally incorporating a connecting screw and bearing;

fig. 7 is a second perspective view of the present utility model integrally fitted with a connecting screw and bearing.

In the figure: 1. an end cap body; 2. a shaft hole; 3. a mounting hole; 4. a limit groove; 5. an end cap hole; 6. a boss portion; 7. a positioning groove; 8. an arc groove; 9. reinforcing ribs; 10. circular ribs; 11. radial ribs; 12. small round ribs; 13. a mounting groove; 14. a bearing; 15. and (5) connecting screws.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: the motor end cover of the industrial fan shown in the attached figures 1-7 comprises an end cover main body 1, wherein a shaft hole 2 for a motor shaft to pass through is formed in the center of the end cover main body 1, a plurality of mounting holes 3 for screws to pass through are distributed on the end cover main body 1 in a circumferential array, and the mounting holes 3 are counter bores and are arranged at the edge of the end cover main body 1; the upper end face of the end cover main body 1 is uniformly provided with a plurality of limit grooves 4 for embedding fan blade connecting parts along the circumferential direction, the number of the limit grooves 4 is 6 and corresponds to 6 fan blades, the position on the end cover main body 1 corresponding to each limit groove 4 is provided with a group of end cover holes 5 for the connecting screws 15 to pass through, and the connecting screws 15 are conventional hexagon socket screws. Set up the spacing groove 4 that is used for supplying flabellum connecting portion embedding on the up end of end cover main part 1, set up end cover hole 5 in spacing groove 4 simultaneously, only need correspond on flabellum connecting portion and set up the flabellum hole, when the installation, can realize the automatic alignment in end cover hole 5 and flabellum hole to the quick pass of connecting screw 15, and lock through the nut, can show promotion installation effectiveness, the operation is very convenient. In addition, the limiting groove 4 plays a role in limiting the fan blades, so that the stability of the fan blade mounting structure is improved, the fan blade connecting portion and the motor end cover are prevented from being connected to loose when the fan works, and the running safety of the fan is guaranteed.

As shown in fig. 1, 2 and 4, a plurality of boss portions 6 corresponding to the limit grooves 4 are uniformly arranged on the upper end face of the end cover main body 1 along the circumferential direction, the limit grooves 4 are arranged on the corresponding boss portions 6, the height of the inner ends of the limit grooves 4 is higher than that of the upper end face of the end cover main body 1, and the limit grooves 4 extend to the outer peripheral face of the end cover main body 1. This design greatly facilitates the processing of the limit groove 4.

As shown in fig. 1, 2 and 4, the end cover main body 1 is provided with a positioning groove 7 at a position corresponding to the inner end edge of each limiting groove 4, i.e. the positioning groove 7 extends along the inner end outline of the limiting groove 4. Through set up constant head tank 7 in the spacing groove 4 of end cover main part 1, set up the location arch on the flabellum connecting portion and agree with this constant head tank 7 mutually, further fix a position the flabellum, promoted the fastness of flabellum installation greatly.

As shown in fig. 1 and fig. 4, the corners of the positioning groove 7 are provided with arc grooves 8 protruding outwards, and the arc of the arc grooves 8 is a circle larger than one half. The arc groove 8 is not only convenient for the fan blade connecting part to be embedded into the limit groove 4 of the end cover main body 1, but also can be used for inserting a tool into the arc groove 8 to pry out the fan blade connecting part when the fan blade is disassembled, so that the disassembly operation of the fan blade is convenient.

Six groups of end cover holes 5 are arranged on the end cover main body 1, the number of each group of end cover holes 5 is 3, and the end cover holes 5 in each group are distributed at equal intervals along the radial direction of the end cover main body 1 in the corresponding limiting groove 4. The fan blade is mounted on the end cover main body 1 by utilizing a plurality of groups of screws, and the connection stability is good and the fan blade is not easy to loosen.

Wherein the end cover hole 5 is a counter bore. The design can effectively play a role of hiding the connecting screw 15, and the overall attractiveness of the fan is improved.

As shown in fig. 3 and fig. 5, the lower end surface of the end cover main body 1 is provided with reinforcing ribs 9, the reinforcing ribs 9 comprise a plurality of concentric circular ribs 10, radial ribs 11 distributed in a circumferential array, and small circular ribs 12 arranged at the outer end of the end cover hole 5, wherein the number of the circular ribs 10 is three, the number of the radial ribs 11 is 12, and the number of the small circular ribs 12 is the same as the number of the end cover holes 5. The design not only can effectively improve the integral strength of the motor end cover and prevent the motor end cover from deforming in the long-term use process, but also increases the contact area between the motor end cover and air, and plays a good role in heat dissipation.

As shown in fig. 5 and fig. 7, a mounting groove 13 is formed in one end, corresponding to the shaft hole 2, of the end cover main body 1, a bearing 14 for being matched with a motor shaft is embedded in the mounting groove 13, the outer ring of the bearing 14 is in interference fit with the inner periphery of the mounting groove 13, and the inner ring of the bearing 14 is in interference fit with the motor shaft. The design can reduce friction between the motor shaft and the end cover main body 1, not only can prolong the service life of the fan, but also can reduce the operation energy consumption of the fan.

Claims

1. The motor end cover of the industrial fan comprises an end cover main body (1), wherein a shaft hole (2) for a motor shaft to pass through is formed in the center of the end cover main body (1), and a plurality of mounting holes (3) for screws to pass through are distributed on the end cover main body (1) in a circumferential array; the method is characterized in that: a plurality of limit grooves (4) used for embedding fan blade connecting parts are uniformly formed in the upper end face of the end cover main body (1) along the circumferential direction, and a group of end cover holes (5) for passing through of connecting screws (15) are formed in the end cover main body (1) at positions corresponding to the positions in each limit groove (4).

2. The motor end cap of an industrial fan of claim 1, wherein: the end cover is characterized in that a plurality of boss parts (6) corresponding to the limit grooves (4) are uniformly arranged on the upper end face of the end cover main body (1) along the circumferential direction, the limit grooves (4) are arranged on the corresponding boss parts (6), and the height of the inner ends of the limit grooves (4) is higher than that of the upper end face of the end cover main body (1).

3. The motor end cap of an industrial fan of claim 1, wherein: and a positioning groove (7) is arranged on the end cover main body (1) at a position corresponding to the edge of the inner end of each limiting groove (4).

4. A motor end cap for an industrial fan as described in claim 3 wherein: the corners of the positioning grooves (7) are provided with arc grooves (8) protruding outwards.

5. The motor end cap of an industrial fan of claim 1, wherein: the number of the end cover holes (5) of each group is 3, and the end cover holes (5) of each group are distributed in the corresponding limit groove (4) at equal intervals along the radial direction of the end cover main body (1).

6. The motor end cap of an industrial fan of claim 1, wherein: the end cover hole (5) is a counter bore.

7. The motor end cap of an industrial fan of claim 1, wherein: the end cover is characterized in that the lower end face of the end cover main body (1) is provided with reinforcing ribs (9), and the reinforcing ribs (9) comprise a plurality of concentric circular ribs (10), radial ribs (11) distributed in a circumferential array and small circular ribs (12) arranged at the outer end of the end cover hole (5).

8. The motor end cap of an industrial fan of claim 1, wherein: the novel motor end cover is characterized in that a mounting groove (13) is formed in one end, corresponding to the shaft hole (2), of the end cover main body (1), a bearing (14) matched with a motor shaft is embedded in the mounting groove (13), and the outer ring of the bearing (14) is in interference fit with the inner periphery of the mounting groove (13).