CN219774440U

CN219774440U - Assembled centrifugal fan shell

Info

Publication number: CN219774440U
Application number: CN202321083181.XU
Authority: CN
Inventors: 陈宝逵
Original assignee: Wuxi Datong Ventilation Equipment Co ltd
Current assignee: Wuxi Datong Ventilation Equipment Co ltd
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-09-29
Anticipated expiration: 2033-05-08

Abstract

The utility model relates to the technical field of centrifugal fans, in particular to an assembled centrifugal fan shell, which comprises a first plate and at least more than two second plates, wherein the first plate and the at least more than two second plates are arranged in pairs, and the first plate in pairs are arranged on two sides of the second plate in an opposite mode along the thickness direction of the first plate. This pin-connected panel centrifugal fan shell comprises first plate, second plate, stand and angle connecting piece, and all be connected through the bolt between the aforesaid splice to realize fan shell's connection, avoided the variable of the shell shape that the welded plate caused, and be equipped with the portion of bending in one side of first plate and stand towards the air intake, connect through the fin between the adjacent portion of bending, with form with fan shell integrated into one piece's flange, further set up bed course and caulking groove at the junction surface of two adjacent first kinks, realize the seal to the junction surface between two adjacent first kinks through the gomphosis of bed course and caulking groove.

Description

Assembled centrifugal fan shell

Technical Field

The utility model relates to the field of centrifugal fans, in particular to an assembled centrifugal fan shell.

Background

The traditional centrifugal fan shell adopts the processing form of plate welding combination more, but this kind of processing mode has the defect that fan shell spare quantity is more, need welded connector is more, the fan plate is after a large amount of welding, the deformation volume of shell is great, easily appear mounting hole position uneven when being connected with external component, the butt joint face is difficult to the problem such as neat butt joint, moreover when flange passes through the bolt to be installed in shell air intake department, flange's joint face probably has the precision error of certain degree with flange's joint face of fan air intake department, flange's joint face is difficult to with flange's joint face tight fit, the problem of air leakage easily appears in the fan operation in-process, so need propose a centrifugal fan shell of assembling in order to solve above-mentioned problem.

Disclosure of Invention

The utility model aims to provide an assembled centrifugal fan shell which is small in assembled deformation quantity and is integrally formed with a connecting flange.

The utility model solves the problems by adopting the following technical scheme: the utility model provides an pin-connected panel centrifugal fan shell, including the first plate and the at least more than two second plate that set up in pairs, the first plate of pair sets up in the both sides of second plate with the mode of opposition along self thickness direction, and each first plate and each second plate have constituted the cavity casing of seting up air intake and air outlet jointly, are equipped with the stand between the first plate of pair, and the corner of first plate is equipped with the angle connection spare of being connected with the stand, and stand and first plate all are connected with the angle connection spare through the bolt, and the second plate is also connected with first plate through the bolt.

As a preferable scheme of the split type centrifugal fan shell, the utility model comprises the following steps: the angle connecting piece is including setting up at the outside outer angle cover of fan shell and setting up at the inside interior angle cover of fan shell, and outer angle cover passes through the bolt and is connected with interior angle cover, has all seted up the mounting hole on stand and the first plate that is connected with the angle connecting piece to supply the bolt to pass, thereby connect first plate, stand and angle connecting piece as an organic whole.

As a preferable scheme of the split type centrifugal fan shell, the utility model comprises the following steps: the side of the first plate close to the air inlet and the side of the upright post close to the air inlet are respectively provided with a bending part, and the bending parts jointly form a connecting flange.

As a preferable scheme of the split type centrifugal fan shell, the utility model comprises the following steps: the bending parts comprise first bending parts which extend from the side surfaces of the upright posts or the side surfaces of the first plate and are bent and formed, and one side of each first bending part far away from the fan shell extends outwards and is bent and formed with a second bending part.

As a preferable scheme of the split type centrifugal fan shell, the utility model comprises the following steps: the adjacent first bending parts are connected through fins, the fins are arranged at one ends of the first bending parts, insertion holes are formed in the positions, corresponding to the fins, of the side faces of the adjacent first bending parts, the fins penetrate through the insertion holes and are bent, and the two adjacent first bending parts are connected into a whole.

As a preferable scheme of the split type centrifugal fan shell, the utility model comprises the following steps: the end face of the first bending part provided with the fin is provided with a cushion layer, the positions of the adjacent first bending parts corresponding to the cushion layer are provided with caulking grooves, and the cushion layer is embedded with the inside of the caulking grooves so as to block gaps between the connecting surfaces of the two adjacent first bending parts.

As a preferable scheme of the split type centrifugal fan shell, the utility model comprises the following steps: one of the second plates is provided with a shaft hole for the fan to pass through, the side surface of the second plate is provided with a reinforcing plate, and the reinforcing plate is provided with a bearing seat coaxially arranged with the shaft hole.

As a preferable scheme of the split type centrifugal fan shell, the utility model comprises the following steps: the bottom of the hollow cabinet body is provided with a base, and the bottom end of the reinforcing plate extends downwards and is connected with the base through bolts.

Compared with the prior art, the utility model has the following advantages and effects:

this pin-connected panel centrifugal fan shell comprises first plate, second plate, stand and angle connecting piece, and all be connected through the bolt between the aforesaid splice to realize fan shell's connection, avoided the variable of the shell shape that the welded plate caused, and be equipped with the portion of bending in one side of first plate and stand towards the air intake, connect through the fin between the adjacent portion of bending, with form with fan shell integrated into one piece's flange, further set up bed course and caulking groove at the junction surface of two adjacent first kinks, realize the seal to the junction surface between two adjacent first kinks through the gomphosis of bed course and caulking groove.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the present utility model.

Fig. 2 is a schematic structural view of a frame according to an embodiment of the present utility model.

Fig. 3 is an enlarged view of the utility model at a in fig. 2.

Fig. 4 is a first exploded view of an embodiment of the present utility model.

Fig. 5 is an enlarged view of the present utility model at B in fig. 4.

Fig. 6 is a second exploded view of an embodiment of the present utility model.

Fig. 7 is an enlarged view of the present utility model at C in fig. 6.

Wherein: 1. a first plate member; 2. a column; 3. a corner connector; 301. an outer corner sleeve; 302. an inner corner sleeve; 4. a bending part; 401. a first bending part; 402. a second bending part; 5. a fin; 6. a cushion layer; 7. a caulking groove; 8. a base; 9. a reinforcing plate; 10. and a second plate.

Detailed Description

The present utility model will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present utility model and not limited to the following examples.

Referring to fig. 1-7, this embodiment provides a split-type centrifugal fan housing, the centrifugal fan housing is composed of a plurality of second plates 10, a plurality of columns 2 and paired first plates 1, two first plates 1 are respectively arranged on the upper side and the lower side of the second plates 10, four corners of the two first plates 1 are connected with corner connectors 3 through bolts, the corner connectors 3 on the upper side and the lower side are connected through columns 2, the ends of the columns 2 are connected with the corner connectors 3 through bolts, the components form a frame of the fan housing after being connected through bolts, the second plates 10 are further connected between the first plates 1 on the upper side and the lower side through bolts, the second plates 10 are arranged on the side face of the frame, so that sealing on the side face of the frame of the fan housing is achieved, a hollow box with an air inlet a and an air outlet is formed, and main equipment of the centrifugal fan can be installed inside the hollow box.

Wherein, angle connecting piece 3 is including setting up at the outside outer angle cover 301 of fan housing and setting up at the inside interior angle cover 302 of fan housing, all seted up the mounting hole on stand 2 and the first plate 1 that are connected with angle connecting piece 3, the mounting hole has also been seted up to the position that outer angle cover 301 and interior angle cover 302 correspond with the mounting hole, when the installation, only need pass each mounting hole in proper order with the bolt alright be connected stand 2 and first plate 1 as an organic whole with angle connecting piece 3 to play the effect of concatenation shell frame.

Compared with welding, the connecting mode between the fan housing components greatly reduces the deformation of the fan housing after splicing is completed, so that the fan housing is connected with the external components.

The first plate 1, the upright posts 2, the corner connecting pieces 3 and the second plate 10 are all sheet metal parts, the sheet metal parts are bent and formed, one side of each first plate 1, which is close to the air inlet a, and one side of each upright post 2, which is close to the air inlet a, are respectively extended and bent to form a first bending part 401, the end faces of the first bending parts 401 are respectively extended and bent again to form a second bending part 402, and the two adjacent first bending parts 401 are spliced to form a connecting flange through the fins 5, so that the integral forming of the connecting flange and the fan housing is realized.

The fins 5 are disposed at the end portions of the first bending portions 401, and insertion holes are formed in positions, corresponding to the fins 5, of the side surfaces of the adjacent first bending portions 401, and the fins 5 at the end portions of the first bending portions 401 penetrate through the second bending portions 402 and are bent, so that the two adjacent first bending portions 401 are connected with each other.

Further, the end face of the first bending part 401 provided with the fin 5 is provided with the cushion layer 6, the side face of the adjacent first bending part 401 is provided with the caulking groove 7 at the opposite side to the cushion layer 6, the insertion hole is positioned in the caulking groove 7, namely, after the fin 5 is connected with the insertion hole, the cushion layer 6 is directly embedded into the caulking groove 7, so that the end part of the first bending part 401 is sealed with the side face gap of the adjacent first bending part 401.

Because the second plate 10 is located the both sides of fan housing, so need offer the shaft hole on the second plate 10 of one side for the pivot of installing in the shell wears out, and be equipped with reinforcing plate 9 in the outside of this second plate 10, and offer on the reinforcing plate 9 with the coaxial through-hole in shaft hole, the bearing frame that sets up with the through-hole is coaxial is installed through the bolt in the outside of reinforcing plate 9, reinforcing plate 9 then plays the effect of strengthening the shell, after the fan pivot passes the bearing frame to be connected with the bearing in the bearing frame, the vibrations accessible reinforcing plate 9 that produce when the fan pivot rotates transmit the external casing, with the concentrated atress of reduction shaft hole department, the influence of vibrations to the shell when reducing the fan pivot and rotating.

Further, set up base 8 in the frame bottom, accessible bolt is with base 8 and frame connection, and after the fan was installed in the shell, the gravity of fan was born mainly by base 8 to reduce the influence of fan main part to first plate 1, the bottom of reinforcing plate 9 still accessible bolt is connected with base 8 simultaneously, in order to strengthen the wholeness of base 8, reinforcing plate 9 and shell.

The foregoing description of the utility model is merely exemplary of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions, without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides an pin-connected panel centrifugal fan shell, includes first plate (1) and at least more than two second plate (10) that set up in pairs, and first plate (1) in pairs set up in the both sides of second plate (10) with the mode of opposition along self thickness direction, and each first plate (1) and each second plate (10) have constituted the cavity casing of seting up air intake (a) and air outlet jointly, its characterized in that: be equipped with stand (2) between paired first plate (1), the corner of first plate (1) is equipped with corner connector (3) that are connected with stand (2), and stand (2) and first plate (1) are all connected with corner connector (3) through the bolt, and second plate (10) are also connected with first plate (1) through the bolt.

2. The assembled centrifugal fan housing of claim 1, wherein: the angle connecting piece (3) comprises an outer angle sleeve (301) arranged outside the fan shell and an inner angle sleeve (302) arranged inside the fan shell, the outer angle sleeve (301) is connected with the inner angle sleeve (302) through bolts, and mounting holes are formed in the upright post (2) connected with the angle connecting piece (3) and the first plate (1) so that the bolts can penetrate through the upright post and the first plate (1), and the upright post (2) and the angle connecting piece (3) are connected into a whole.

3. The assembled centrifugal fan housing according to claim 1 or 2, wherein: the side of the first plate (1) close to the air inlet (a) and the side of the upright post (2) close to the air inlet are respectively provided with a bending part (4), and the bending parts (4) form a connecting flange together.

4. A split centrifugal fan housing according to claim 3, wherein: the bending parts (4) comprise first bending parts (401) which extend from the side surfaces of the upright posts (2) or the side surfaces of the first plate (1) and are bent, and one side, far away from the fan shell, of each first bending part (401) extends outwards and is bent to form a second bending part (402).

5. The assembled centrifugal fan housing of claim 4, wherein: adjacent first bending parts (401) are connected through fins (5), the fins (5) are arranged at one ends of the first bending parts (401), insertion holes are formed in the positions, corresponding to the fins (5), of the side faces of the adjacent first bending parts (401), the fins (5) penetrate through the insertion holes and are bent, and the two adjacent first bending parts (401) are connected into a whole.

6. The assembled centrifugal fan housing of claim 5, wherein: the end face of the fin (5) arranged on the first bending part (401) is provided with a cushion layer (6), the positions of the adjacent first bending parts (401) corresponding to the cushion layer (6) are provided with caulking grooves (7), and the cushion layer (6) is embedded with the inside of each caulking groove (7) so as to seal gaps between the connecting surfaces of the two adjacent first bending parts (401).

7. The assembled centrifugal fan housing of claim 1, wherein: one of the second plates (10) is provided with a shaft hole for the fan to pass through, the side surface of the second plate (10) is provided with a reinforcing plate (9), and the reinforcing plate (9) is provided with a bearing seat coaxially arranged with the shaft hole.

8. The assembled centrifugal fan housing of claim 7, wherein: the bottom of the hollow cabinet body is provided with a base (8), and the bottom end of the reinforcing plate (9) extends downwards and is connected with the base (8) through bolts.