CN213684594U

CN213684594U - Axial fan that detachable forced cooling ventilation was used

Info

Publication number: CN213684594U
Application number: CN202022328764.7U
Authority: CN
Inventors: 朱大朋
Original assignee: Changhang Group Wuhan Motor Co ltd
Current assignee: Changhang Group Wuhan Motor Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-07-13
Anticipated expiration: 2030-10-19

Abstract

The utility model discloses an axial fan that detachable forced cooling ventilation used installs on the motor end cover, axial fan that detachable forced cooling ventilation used includes: one end of the air duct is provided with a connecting part A; the other end of the fan core is provided with a connecting part B; and the connecting device connects the connecting part A and the connecting part B into a whole so as to coaxially communicate the air duct 1 and the fan movement. The utility model discloses make 2 solitary individualities with air duct and fan core, recycle connecting device and unite two into one them again, make things convenient for follow-up dismantlement to use.

Description

Axial fan that detachable forced cooling ventilation was used

Technical Field

The utility model relates to an axial fan field. More specifically, the utility model relates to an axial fan that detachable forced cooling ventilation used.

Background

At present, the hoisting and metallurgical variable-frequency speed regulating motor basically adopts a cooling mode of forced ventilation of an axial flow fan, the motor generates loss when in operation, the loss is converted into heat energy and the temperature rise of the motor is rapidly increased, and most heat energy on the surface of the motor can be taken away by cold air forced by the axial flow fan. The design of the motor not only meets the product performance requirement, but also has to give full play to the cooling and ventilating effect of the axial flow motor, so that the temperature rise of the motor is kept within the range required by the national standard, and the safe operation of the motor is ensured. Along with the continuous increase of the power density of the motor, the axial flow fan is more important in the aspect of ensuring the heat dissipation of the motor, so that the axial flow fan needs to continuously work for a long time in practical application, even if the motor is stopped, the axial flow fan can still normally run, the insulation of the core of the axial flow fan can be reduced to cause the burning-out situation due to the long-time continuous running, and once the axial flow fan is burnt out, the axial flow fan must be replaced immediately.

The axial flow fan on the market at present makes fan guide duct and fan core into an organic whole, and this structure is seemingly simple, but is very difficult in the aspect of maintenance and change, and the user when changing axial flow fan, need pull down the lead wire of the annex (such as encoder, overspeed switch) that the motor was furnished with earlier from the fan terminal box, then unscrew axial flow fan's bolt on the motor end cover, draw out the fan wholly from the motor afterbody at last, and whole change process is very loaded down with trivial details, and has higher requirement to the maintenance space.

SUMMERY OF THE UTILITY MODEL

In order to realize the basis the utility model discloses a these purposes and other advantages, the utility model provides an axial fan, and make 2 solitary individualities with guide duct and fan core, recycle connecting device and unite two into one them again, convenient follow-up dismantlement is used.

The utility model provides an axial fan that detachable forced cooling ventilation used, install on motor end cover, axial fan that detachable forced cooling ventilation used includes:

one end of the air duct is provided with a connecting part A;

one end of the fan core is provided with a connecting part B; and

and the connecting device connects the connecting part A and the connecting part B into a whole so as to coaxially communicate the air duct with the fan movement.

According to the utility model discloses a preferred embodiment provide detachable forced cooling ventilates the axial fan who uses, connecting portion A with connecting portion B is the flange piece, connecting portion A with it is provided with the mounting hole to correspond respectively on the connecting portion B.

According to the utility model discloses a preferred embodiment provide detachable forced cooling ventilates axial fan of usefulness, connecting device includes bolt and nut, the bolt passes connecting portion A with corresponding mounting hole on the connecting portion B, the reuse the nut is right the bolt passes the other end of mounting hole is fastened.

According to the utility model discloses a preferred embodiment provide detachable forced cooling ventilates axial fan of usefulness, be provided with the mounting hole on the air duct for with the air duct is installed on the motor end cover.

According to the utility model discloses a preferred embodiment provide detachable forced cooling ventilates axial fan of usefulness, the air duct with set up annular sealed the pad between the one end that the fan core is close to each other to realize sealedly.

According to the utility model discloses an preferred embodiment provide detachable forced cooling ventilates axial fan of usefulness, the inner wall of air duct sets up spiral helicine aviation baffle, the aviation baffle surface is smooth, just refrigerated motor is treated to the terminal orientation of aviation baffle.

According to the utility model discloses a preferred embodiment provide detachable forced cooling ventilates axial fan who uses, sealed fill the ventilating duct with the gap between the fan core.

The utility model discloses at least, include following beneficial effect:

1. the utility model discloses an axial fan has abandoned traditional fan as a holistic view, reforms transform according to the in-service use problem, makes 2 solitary individualities with air duct and fan core, recycles connecting device and unites two into one them again, and convenient follow-up dismantlement is used.

2. The axial flow fan has a simple structure, the lead wires of the motor accessories do not need to be removed firstly when the axial flow fan is overhauled and replaced, the operation flow is simplified, the overhauling and replacing time is saved, and the maintenance efficiency of the fan is improved;

3. the air duct does not need to be replaced repeatedly when the axial flow fan is replaced, the material utilization rate is increased, and the maintenance cost of the axial flow fan is reduced.

4. The disassembly space distance of the axial flow fan is shortened, and particularly in the aspect of port door machines, the port machine door house can be relatively reduced in space, so that the manufacturing cost of the port machine door house is greatly saved.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural view of the axial flow fan for the middle detachable forced cooling ventilation of the present invention.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

As shown in fig. 1, the utility model discloses an axial fan that detachable forced cooling ventilation used installs on the motor end cover, axial fan that detachable forced cooling ventilation used includes:

an air duct 1 having a connection part A2 provided at one end thereof;

a fan core 3, one end of which is provided with a connecting part B4; and

and the connecting device 5 is used for connecting the connecting part A2 and the connecting part B4 into a whole so as to coaxially communicate the air duct 1 and the fan movement 3.

In the above embodiment, the outer surface of the air duct 1 is provided with the mounting hole, the air duct 1 is mounted on the motor end cover by using the mounting hole, and the air duct 1 and the fan core 3 are connected into a whole, that is, the whole axial flow fan is mounted on the motor end cover.

It should be further noted that, the specific structure of the connecting device 5 herein is not limited, and the connecting portion A2 and the connecting portion B4 can be directly connected by using a bolt-nut structure, if the connecting portion A2 and the connecting portion B4 are of a bolt-nut structure, mounting holes need to be correspondingly formed on both the connecting portion A2 and the connecting portion B4, and the connecting device 5 can also be directly connected by using a wire or a buckle, and the following specifically discloses a case of a connecting device:

wherein to this kind of connecting device, following supporting setting need be carried out, connecting portion A2 with connecting portion B4 is the flange piece, connecting portion A2 with correspond respectively on the connecting portion B4 and be provided with the mounting hole.

And the connecting device 5 comprises a bolt 51 and a nut 52, the bolt 52 passes through corresponding mounting holes on the connecting part A2 and the connecting part B4, and the other end of the bolt 51 passing through the mounting hole is fastened by the nut 52. The flange plate has strong hardness and can withstand the local tension of the bolt and nut structure.

In another embodiment, the detachable axial flow fan for forced cooling and ventilation has a mounting hole 11 formed in the air duct 1 for mounting the air duct 1 on a motor end cover. This is because the air duct 1 has a large volume, and can be used to carry the fan movement 2 and is suitable for being fixed on the end cover of the motor.

In another embodiment, in the detachable axial flow fan for forced cooling and ventilation, an annular sealing gasket 6 is disposed between the ends of the air duct 1 and the fan core 2, which are close to each other, to realize sealing, so as to play a role in sealing, and prevent the air blown out by the fan core 1 from leaking out from a gap between the air duct 1 and the fan core 2, thereby weakening the air volume of the fan and reducing the cooling effect of the fan.

In another embodiment, the detachable axial fan for forced cooling and ventilation has a spiral air guide plate arranged on the inner wall of the air guide cylinder, the surface of the air guide plate is smooth, and the tail end of the air guide plate faces the motor to be cooled, so that the air blown out from the fan core 2 is blown to the motor to be cooled under the guiding action of the air guide plate, and the cooling effect is better.

In another embodiment, the sealing gasket fills a gap between the air duct and the fan core, so that the sealing effect is better, and the leakage of wind from the gap is completely avoided.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims

1. The utility model provides a detachable axial fan that forced cooling ventilation used, installs on motor end cover, its characterized in that detachable axial fan that forced cooling ventilation used includes:

one end of the air duct is provided with a connecting part A;

the other end of the fan core is provided with a connecting part B; and

2. The detachable axial flow fan for forced cooling and ventilation according to claim 1, wherein the connecting portion a and the connecting portion B are both flange pieces, and mounting holes are correspondingly formed in the connecting portion a and the connecting portion B, respectively.

3. The detachable axial flow fan for forced cooling and ventilation according to claim 2, wherein the connecting means comprises a bolt and a nut, the bolt passes through corresponding mounting holes on the connecting portion a and the connecting portion B, and the nut is used to fasten the other end of the bolt passing through the mounting hole.

4. The removable axial fan for forced cooling and ventilation according to claim 1, wherein the air guide duct is provided with a mounting hole for mounting the air guide duct on a motor end cover.

5. The detachable axial flow fan for forced cooling and ventilation according to claim 1, wherein an annular sealing gasket is provided between the end of the air duct and the end of the fan core close to each other to achieve sealing.

6. The detachable axial flow fan for forced cooling ventilation according to claim 2, wherein a spiral air deflector is disposed on an inner wall of the air duct, the surface of the air deflector is smooth, and a tip of the air deflector faces the motor to be cooled.

7. The removable axial fan for forced cooling ventilation according to claim 5, wherein the gasket fills a gap between the air guide duct and the fan core.