CN-121993427-A - Industrial double-suction centrifugal fan

CN121993427ACN 121993427 ACN121993427 ACN 121993427ACN-121993427-A

Abstract

The invention discloses an industrial double-suction centrifugal fan, and relates to the technical field of industrial fans. According to the base plate, the top of the base plate is fixedly connected with a mounting plate, the top of the mounting plate is fixedly connected with a motor, an output shaft of the motor is fixedly connected with a belt wheel I, the top of the base plate is fixedly connected with an air box, the top of the base plate is fixedly connected with a side plate, the side surface of the side plate penetrates through and is rotationally connected with a central rotating shaft, the circumferential surface of the central rotating shaft is fixedly connected with an impeller, the top of the base plate is fixedly connected with a supporting plate, the side surface of the supporting plate is fixedly connected with a protective cover, and the side surface of the air box is provided with an air guide filtering structure. According to the invention, through the arrangement of the air guide filtering structure, the air entering the air box can be effectively filtered, and impurities and dust are prevented from entering the fan, so that the service life of the fan is prolonged, the working efficiency of the fan is improved, the filter screen is prevented from being blocked, and the smoothness of air inlet is ensured.

Inventors

SONG QIUYONG
Song tianlang
MA ZHEFENG
HUANG MIN
Lv Kuinan
Jin Sihui
Qian Jianqun

Assignees

嵊州市正德电机有限公司

Dates

Publication Date: 20260508
Application Date: 20260209

Claims (10)

1. The industrial double-suction centrifugal fan comprises a bottom plate (1) and is characterized in that the top of the bottom plate (1) is fixedly connected with a mounting plate (2), the top of the mounting plate (2) is fixedly connected with a motor (3), an output shaft of the motor (3) is fixedly connected with a first belt wheel (4), the top of the bottom plate (1) is fixedly connected with a bellows (5), the top of the bottom plate (1) is fixedly connected with a side plate (6), the side surface of the side plate (6) penetrates through and is rotationally connected with a central rotating shaft (7), the circumferential surface of the central rotating shaft (7) is fixedly connected with an impeller (8), one end of the central rotating shaft (7) is fixedly connected with a second belt wheel (9), the circumferential surface of the second belt wheel (9) is provided with a belt (10), the top of the bottom plate (1) is fixedly connected with a supporting plate (11), the side surface of the supporting plate (11) is fixedly connected with a protective cover (12), and the side surface of the bellows (5) is provided with an air guide filtering structure (13). The wind guiding filter structure (13) comprises a wind guiding cover (131), the wind guiding cover (131) fixedly penetrates through the side face of the wind box (5), a filter screen (132) is fixedly penetrated through the side face of the wind guiding cover (131), a motor (133) is fixedly connected with the side face of the wind guiding cover (131), a driving gear (134) is fixedly connected with an output shaft of the motor (133), a travel plate (135) is fixedly connected with the side face of the wind guiding cover (131), a reciprocating screw (136) is penetrated through and rotationally connected with the side face of the travel plate (135), one end of the reciprocating screw (136) is fixedly connected with a driven gear (137), a threaded sleeve (138) is connected with the circumferential face of the reciprocating screw (136), a movable plate (139) is fixedly connected with a limit plate (140) in a threaded sleeve (138) in a circumferential face fixedly connected mode, a rotating shaft (141) is fixedly connected with the side face of the movable plate (139), one end of the rotating shaft (141) is fixedly connected with a scraping plate (142), the angle of the scraping plate (142) is fixedly connected with a spring (144) and the side face of the wind guiding post (131) is fixedly connected with the limit post (145), the side of the scraping plate (142) is provided with an adhesive tape (146).
2. The industrial double-suction centrifugal fan as set forth in claim 1, wherein a dirt-collecting shell (14) is fixedly connected to the side face of the air guide cover (131), the inner side face of the limiting rod (145) is abutted against the side face of the limiting plate (140), and the side face of the scraping plate (142) is abutted against the side face of the filter screen (132).
3. The industrial double suction centrifugal fan according to claim 2, wherein one end of the spring (144) far away from the rotating shaft (141) is abutted against the side face of the moving plate (139), the adhesive tape (146) is arranged at a position, close to the top, of the side face of the scraping plate (142), and the side face of the moving plate (139) is abutted against the inner wall of the stroke plate (135).
4. An industrial double suction centrifugal fan according to claim 3, wherein the driving gear (134) is meshed with the driven gear (137), the number of teeth of the driving gear (134) is smaller than that of the driven gear (137), the side section of the limiting plate (140) is semicircular, and the inner wall of the limiting plate (140) is slidably connected with the circumferential surface of the angle column (143).
5. The industrial double-suction centrifugal fan according to claim 4, wherein the first belt wheel (4) is in transmission connection with the second belt wheel (9) through a belt (10), and the impeller (8) is positioned in the bellows (5).
6. The industrial double-suction centrifugal fan according to claim 5, wherein the end, far away from the driven gear (137), of the reciprocating screw rod (136) is provided with a pneumatic dust collection structure (15), the pneumatic dust collection structure (15) comprises a disc (151), the disc (151) is fixedly connected to the end, far away from the driven gear (137), of the reciprocating screw rod (136), a first connecting rod (152) is hinged to the side face of the disc (151), a second connecting rod (153) is hinged to the end, far away from the disc (151), of the first connecting rod (152), a piston block (154) is hinged to the end, far away from the first connecting rod (152), of the second connecting rod (153), a piston cylinder (155) is connected to the circumferential surface in a sliding mode, a connecting pipe (156) is fixedly penetrated at the bottom of the piston cylinder (155), an air injection disc (157) is arranged on the inner wall of the dirt-pocket shell (14), and a one-way valve (158) is fixedly penetrated at the bottom of the piston cylinder (155).
7. The industrial double-suction centrifugal fan as claimed in claim 6, wherein the circumferential surface of the piston cylinder (155) is fixedly connected with the side surface of the air guide cover (131), and one end of the connecting pipe (156) far away from the piston cylinder (155) is fixedly penetrated with the side surface of the air injection disk (157).
8. An industrial double suction centrifugal fan according to claim 7, wherein the one-way valve (158) is in one-way conduction at the end far from the piston cylinder (155).
9. The industrial double-suction centrifugal fan according to claim 8, wherein a wind direction adjusting structure (16) is arranged at the top of the wind box (5), the wind direction adjusting structure (16) comprises a telescopic cylinder (161), the telescopic cylinder (161) is fixedly connected to the side face of the wind box (5), a sliding block (162) is fixedly connected to the telescopic end of the telescopic cylinder (161), an outer cover (163) is fixedly connected to the side face of the wind box (5), and an air plate (164) is slidingly connected to the inner wall of the outer cover (163).
10. The industrial double-suction centrifugal fan as set forth in claim 9, wherein two groups of outer covers (163) are provided, the side surfaces of the air plates (164) penetrate through the side surfaces of the air boxes (5) and are in sliding connection, and the side surfaces of the sliding blocks (162) are fixedly connected with the side surfaces of the air plates (164).

Description

Industrial double-suction centrifugal fan Technical Field The invention relates to the technical field of industrial fans, in particular to an industrial double-suction centrifugal fan. Background In industrial production, fans are widely used in various fields as important ventilation devices. In the long-time operation process of the traditional industrial fan, the problem that impurities and dust enter the fan is often encountered, so that the service life of the fan is shortened, and the working efficiency of the fan is reduced. According to the double-suction multi-blade centrifugal fan with filtering (with the publication number of CN 222924637U), the double-suction multi-blade centrifugal fan comprises a shell and an exhaust pipe which are integrally formed, wherein symmetrical air inlets are formed in two sides of the shell, a fixing frame is arranged at each air inlet, a fan motor is arranged between the two fixing frames, an impeller is fixed on the outer side wall of the fan motor, clamping grooves are formed in the surface of each fixing frame, air enters the shell from two sides of the shell during operation, enough air quantity can be provided, filter screens are arranged at the two air inlets, the filter screens are firmly installed and fixed through a positioning frame, external sundries are prevented from entering the shell, the three filter screens form a circular filter screen, the air inlets are covered, each filter screen can be independently installed and detached, when a certain filter screen is damaged, the corresponding filter screen can be replaced, the maintenance cost is saved, the filter screen is easy to clean after being detached, and the double-suction multi-blade centrifugal fan is simple in structure and convenient to use. In the above-mentioned application, though can carry out certain filtration to the air that gets into the fan through the mode that sets up the filter screen at the air intake, still there are a great deal of shortages in the in-service use, the filter screen is used for a long time the back, impurity and dust can be piled up on the filter screen surface in a large number, cause the filter screen to block up easily, influence the smoothness nature of air inlet, and then reduce the work efficiency of fan, even can dismantle, it is also very inconvenient to dismantle the washing filter screen in industry fan frequently, not only consume a large amount of manpowers and time, still probably cause extra loss to the fan because of the improper operation in the dismantlement installation, consequently we propose an industry double suction centrifugal fan. Disclosure of Invention Aiming at the defects of the prior art, the invention provides an industrial double-suction centrifugal fan, which solves the problems in the background art. The industrial double-suction centrifugal fan comprises a bottom plate, wherein the top of the bottom plate is fixedly connected with a mounting plate, the top of the mounting plate is fixedly connected with a motor, an output shaft of the motor is fixedly connected with a belt wheel I, the top of the bottom plate is fixedly connected with a bellows, the top of the bottom plate is fixedly connected with a side plate, the side surface of the side plate penetrates through and is rotationally connected with a central rotating shaft, the circumferential surface of the central rotating shaft is fixedly connected with an impeller, one end of the central rotating shaft is fixedly connected with a belt wheel II, the circumferential surface of the belt wheel II is provided with a belt, the top of the bottom plate is fixedly connected with a supporting plate, the side surface of the supporting plate is fixedly connected with a protective cover, and the side surface of the bellows is provided with an air guide filtering structure. The wind-guiding filtration includes the wind scooper, the wind scooper is fixed to be run through in the side of bellows, the side of wind scooper is fixed to be run through and is connected with the filter screen, the side fixedly connected with motor of wind scooper, the output shaft fixedly connected with driving gear of motor, the side fixedly connected with stroke board of wind scooper, the side of stroke board runs through and rotates and be connected with reciprocating screw, the one end fixedly connected with driven gear of reciprocating screw, the circumference threaded connection of reciprocating screw has the thread bush, the circumference fixedly connected with movable plate of thread bush, movable plate side fixedly connected with limiting plate, the side of movable plate runs through and rotates and be connected with the pivot, the one end fixedly connected with scraper blade of pivot, the fixedly connected with angle post of scraper blade, the side fixedly connected with spring of pivot, the side fixedly connected with gag lever post of wind scooper, the side of scraper blade is provided with adhesive