CN211449109U

CN211449109U - Fan for chemical processing

Info

Publication number: CN211449109U
Application number: CN201921882540.1U
Authority: CN
Inventors: 李青
Original assignee: Shanghai Moudi General Equipment Co ltd
Current assignee: Shanghai Moudi General Equipment Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-09-08
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses a fan for chemical processing, which belongs to the technical field of fans and comprises a shell, wherein one side of the shell is connected with an air inlet pipe, the outer surface of the air inlet pipe is provided with four chutes, and the insides of the four chutes are connected with sliders; be provided with the spout, the slider, a spring, the telescopic link, spacing post, the filter screen, the pull rod, because of the filter screen setting is in the air-intake pipe, when fan work inhales during the outside air, impurity in the air can be intercepted by the filter screen, avoid impurity to get into in the fan or the processing equipment, and when needs clear up the filter screen, the user upwards presses down spacing post, spacing post removes with extrusion spring and telescopic link, the compression of spring atress, the telescopic link atress is shrink, when spacing post no longer contacts with the slider, the user is toward outer pulling pull rod, the pull rod removes in order to drive the filter screen and removes, the filter screen removes so that the slider slides in the spout, then take out the filter screen from the air-intake pipe, so that the user clears up the filter.

Description

Fan for chemical processing

Technical Field

The utility model relates to a fan technical field specifically is a fan for chemical industry processing.

Background

The blower is a short-term habit for gas compression and gas conveying machinery in China, and generally comprises a ventilator, a blower and a wind driven generator; the gas compression and gas transmission machinery is a machinery which converts the rotating mechanical energy into gas pressure energy and kinetic energy and transmits the gas out; the main structural components of the fan are an impeller, a shell, an air inlet, a bracket, a motor, a belt pulley, a coupling, a silencer, a transmission part (a bearing) and the like.

The existing fan for chemical processing contains a large amount of particle impurities, dust impurities and the like in the air, when the fan sucks external air, harmful substances such as impurities and the like contained in the fan can enter the fan and influence the service life of the fan, and the impurities can also enter processing equipment to influence the working process of the equipment; meanwhile, the output end of the motor on the fan can extend into the bearing, so that the motor drives the impeller and the blades in the fan to rotate when working, but the connection between the output end of the motor and the bearing is not tight at present, and a gap exists at the connection part, so that the stability of the rotation of the impeller and the blades is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fan for chemical industry processing has solved the untight problem that can cause impurity in the air to enter into in the fan can the processing equipment and be connected between motor output and bearing when the fan inhales outside air among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a fan for chemical processing comprises a shell, wherein one side of the shell is connected with an air inlet pipe, the outer surface of the air inlet pipe is provided with four sliding chutes, the insides of the four sliding chutes are respectively connected with a sliding block, a filter screen is fixed between the four sliding blocks, the outer surface of the filter screen is connected with a pull rod, the two sides of the outer surface of the air inlet pipe are both fixed with connecting plates, the bottom of the connecting plate is respectively provided with a spring and a telescopic rod, the bottom ends of the spring and the telescopic rod are respectively connected with a limiting column, the other side of the shell is provided with a motor through an outlet flange, the top of the shell is provided with an inlet flange, an impeller is arranged in the shell, a plurality of blades are fixed on one side of the impeller, a bearing is arranged in the middle of one side of the impeller, the bearing is characterized in that a fastening pad is fixed inside the bearing, and a plurality of pressure-proof columns are arranged inside the fastening pad.

In a preferred embodiment of the present invention, two of the limiting posts are all in contact with two sliding blocks, and the bottom ends of two of the limiting posts are arc-shaped.

In a preferred embodiment of the present invention, four of the sliding chutes are distributed on the outer surface of the air inlet pipe in an annular array, and the sliding block is slidably connected to the sliding chutes.

In a preferred embodiment of the present invention, the telescopic rods are located inside the spring, and two of the telescopic rods are symmetrically disposed along a longitudinal axis center line of the air inlet pipe.

In a preferred embodiment of the present invention, the fastening pad is made of rubber material, and the plurality of the compression-preventing columns are equidistantly distributed inside the fastening pad.

In a preferred embodiment of the present invention, the diameter of the filter screen is smaller than the inner diameter of the air inlet pipe, and the filter screen is made of stainless steel.

In a preferred embodiment of the invention, the output of the motor extends into the interior of the bearing and it is in contact with the fastening pad.

Compared with the prior art, the beneficial effects of the utility model are that: the fan for chemical processing is provided with a chute, a sliding block, a spring, a telescopic rod, a limiting column, a filter screen and a pull rod, wherein the filter screen is arranged in the air inlet pipe, when the fan sucks external air in operation, impurities in the air can be intercepted by the filter screen, the impurities are prevented from entering the fan or processing equipment, when the filter screen needs to be cleaned, a user presses the limiting column upwards, the limiting column moves to extrude the spring and the telescopic rod, the spring is stressed and compressed, the telescopic rod is stressed and contracted, when the limiting column is not contacted with the sliding block any more, the user pulls the pull rod outwards, the pull rod moves to drive the filter screen to move, the filter screen moves to enable the sliding block to slide in the chute, then the filter screen is taken out of the air inlet pipe, so that the user can clean the filter screen, after the cleaning is finished, the user repeats the steps to enable the limiting column to move, the limiting column is loosened, and the spring recovers elasticity at the moment, so that the limiting column moves downwards and is in contact with the sliding block to limit the sliding block and prevent the filter screen from falling out of the air inlet pipe; still be provided with the fastening pad simultaneously, prevent pressing the post, when the output of motor stretched into to the bearing in, it can crowd and compress tightly the fastening pad, fastening pad atress deformation to make the output of motor can with bearing zonulae occludens, prevent that the output of motor from taking place not hard up in the bearing, and improve the rotatory stability of impeller and blade, prevent simultaneously that the pressing the post can prevent that the fastening pad from excessively deforming, in order to prevent that the fastening pad from losing elasticity.

Drawings

Fig. 1 is a schematic front structural view of the present invention.

Fig. 2 is a schematic side view of the present invention.

Fig. 3 is a schematic cross-sectional view of the present invention.

Fig. 4 is a partially enlarged schematic view of the air inlet pipe of the present invention.

Fig. 5 is an enlarged schematic view of B of fig. 4.

Fig. 6 is an enlarged schematic view of a portion a of fig. 3.

Detailed description of the preferred embodiments

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a fan for chemical processing comprises a shell 1, a motor 2, an inlet flange 3, an outlet flange 4, an air inlet pipe 5, an impeller 6, blades 7, a bearing 8, a filter screen 9, a pull rod 10, a slider 11, sliding chutes 12, limiting columns 13, springs 14, a connecting plate 15, a telescopic rod 16, a fastening pad 17 and a pressure-proof column 18, wherein one side of the shell 1 is connected with the air inlet pipe 5, four sliding chutes 12 are formed in the outer surface of the air inlet pipe 5, the four sliding chutes 12 are internally connected with the slider 11, the four filter screens 9 are fixed between the slider 11, the outer surface of the filter screen 9 is connected with the pull rod 10, the connecting plate 15 is fixed on two sides of the outer surface of the air inlet pipe 5, the spring 14 and the telescopic rod 16 are respectively installed at the bottom of the connecting plate 15, the bottom ends of the spring 14 and the telescopic rod 16 are connected with the limiting columns 13, the motor 2, import flange 3 is installed at the top of casing 1, the internally mounted of casing 1 has impeller 6, one side of impeller 6 is fixed with a plurality of blades 7, one side intermediate position department of impeller 6 installs bearing 8, the inside of bearing 8 is fixed with fastening pad 17, fastening pad 17's inside is provided with a plurality of pressure posts 18 of preventing to the user installs motor 2 at casing 1 through import flange 3, and convenient to use person dismantles motor 2.

Referring to fig. 3-5, the two limiting posts 13 are both in contact with the two sliding blocks 11, and the bottom ends of the two limiting posts are arc-shaped, so that the limiting posts 13 limit the sliding blocks 11 to prevent the sliding blocks 11 from sliding out of the sliding grooves 12; four spout 12 is annular array form and distributes in the surface of air-supply line 5, just

slider

11 and 12 sliding connection of spout to make slider 11 slide in spout 12, and convenient to use person dismouting filter screen 9.

Referring to fig. 4-5, the expansion rods 16 are located inside the spring 14, and the two expansion rods 16 are symmetrically arranged along the center line of the longitudinal axis of the air inlet pipe 5, so as to prevent the spring 14 from shaking left and right and improve the service life of the spring 14; the fastening pad 17 is made of rubber material, and the pressure-proof columns 18 are distributed in the fastening pad 17 at equal intervals to prevent the fastening pad 17 from being excessively deformed.

Referring to fig. 2, 4, 5 and 6, the diameter of the filter screen 9 is smaller than the inner diameter of the air inlet pipe 5, and the filter screen 9 is made of stainless steel material, so as to prevent external air from entering the inside of the fan through the air inlet pipe 5 and prolong the service life of the filter screen 9; the output end of the motor 2 extends to the inside of the bearing 8 and is in contact with the fastening pad 17 to make the connection of the output end of the motor 2 and the bearing 8 more stable.

The working principle is as follows: firstly, a user installs the fan, the power is switched on after the fan is installed, when the fan works, the air inlet pipe 5 sucks external air, and impurities in the air are intercepted by the filter screen 9 because the filter screen 9 is arranged in the air inlet pipe 5, so that the impurities are prevented from entering the fan or processing equipment, when the filter screen 9 needs to be cleaned, the user presses the limiting column 13 upwards, the limiting column 13 moves to extrude the spring 14 and the telescopic rod 16, the spring 14 is compressed under the stress, the telescopic rod 16 is contracted under the stress, when the limiting column 13 is not contacted with the sliding block 11 any more, the user pulls the pull rod 10 outwards, the pull rod 10 moves to drive the filter screen 9 to move, the filter screen 9 moves to enable the sliding block 11 to slide in the sliding groove 12, then the filter screen 9 is taken out of the air inlet pipe 5, so that the user can clean the filter screen 9, and after the cleaning is finished, the user repeats the steps to enable the, then slide the filter screen 9 into the air inlet pipe 5 to loosen the spacing post 13, at this time the spring 14 recovers elasticity, so that the spacing post 13 moves downwards and contacts with the slide block 11, so as to limit the slide block 11, prevent the filter screen 9 from falling out from the air inlet pipe 5, and meanwhile, when the output end of the motor 2 extends into the bearing 8, the output end of the motor 2 can extrude the fastening pad 17, and the fastening pad 17 deforms under stress, so that the output end of the motor 2 can be tightly connected with the bearing 8, and the rotation stability of the impeller 6 and the blade 7 is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fan for chemical processing, includes the casing, its characterized in that: one side of casing is connected with the air-supply line, four spouts, four have been seted up to the surface of air-supply line the inside of spout all is connected with the slider, four be fixed with the filter screen between the slider, the surface connection of filter screen has the pull rod, the surface both sides of air-supply line all are fixed with the connecting plate, spring and telescopic link are installed respectively to the bottom of connecting plate, the bottom of spring and telescopic link all is connected with spacing post, the opposite side of casing is passed through outlet flange and is installed the motor, inlet flange is installed at the top of casing, the internally mounted of casing has the impeller, one side of impeller is fixed with a plurality of blades, the bearing is installed to one side intermediate position department of impeller, the inside of bearing is fixed with the fastening pad, the inside of fastening pad is provided with a plurality of pressure-proof.

2. The fan for chemical processing according to claim 1, wherein: two spacing post all contacts with two sliders, and two the bottom of spacing post is the arc.

3. The fan for chemical processing according to claim 1, wherein: four the spout is the annular array form and distributes in the surface of air-supply line, just slider and spout sliding connection.

4. The fan for chemical processing according to claim 1, wherein: the telescopic links are located the inside of spring, and two the telescopic link is the symmetry setting along the axis of ordinates central line of air-supply line.

5. The fan for chemical processing according to claim 1, wherein: the fastening pad is made of rubber materials, and the anti-pressure columns are distributed in the fastening pad at equal intervals.

6. The fan for chemical processing according to claim 1, wherein: the diameter of filter screen is less than with the internal diameter of air-supply line, just the filter screen adopts stainless steel material to make and forms.

7. The fan for chemical processing according to claim 1, wherein: the output end of the motor extends to the inside of the bearing and is in contact with the fastening pad.