CN213392742U

CN213392742U - Multistage centrifugal blower

Info

Publication number: CN213392742U
Application number: CN202021979841.9U
Authority: CN
Inventors: 杨勇
Original assignee: Zhejiang Top Motoring Technology Co ltd
Current assignee: Zhejiang Top Motoring Technology Co ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-06-08
Anticipated expiration: 2030-09-11

Abstract

The utility model discloses a multistage centrifugal blower, including blower housing, air intake, wind scooper, branch, rotation motor, first fixed plate, protection casing, second fixed plate, first transmission shaft, secondary drive axle, impeller, draw-in groove, first gear, second gear and connection track. The utility model has the advantages that: the protection casing passes through the first fixed plate through the screw, the second fixed plate, and twist the locking soon through the nut, and then be detachable connection with the blower housing, when damage appears in the device inside, can carry out quick maintenance to its inside through dismantling the protection casing, the air intake is provided with two, and be provided with the one deck filter screen on the air intake, guarantee the intake through two air intakes, prevent to inhale the dust when the air inlet in the inside cavity of blower housing, the second transmission shaft is through connecting the synchronous syntropy rotation of track and the bull stick that rotates the motor, guarantee that the second transmission shaft can rotate clockwise with rotating the motor is synchronous, upwards carry the air current.

Description

Multistage centrifugal blower

Technical Field

The utility model relates to an air-blower specifically is a multistage centrifugal air-blower, belongs to air-blower technical field.

Background

The multistage centrifugal blower is widely applied to various smelting blast furnaces and cupola blast, coal washing jigging machine matching, mine flotation, sewage aeration, chemical gas making and other occasions needing air conveying, and can also be used for conveying other special gases, the series of blowers have the characteristics of high efficiency, low noise, stable operation, no pulse, wide stable area, clean and dry gas conveying, few easily-damaged parts, simple and convenient installation, operation and maintenance and the like, and the multistage centrifugal blower consists of three parts: 1. a host part: blower main unit, motor (general type, outdoor type, explosion-proof type), the public base of main unit and motor combination, 2, accessory part: elbow, silencer, filter, general purpose silk screen type filter, special purpose (micropore aeration etc.) low, medium and high grade filter, 3, matching part: a butterfly valve (manual type or motor-driven type) at the inlet of the fan, a motor control starting cabinet and a flexible joint.

Because of the large amount of demands to multistage centrifugal blower on the market, consequently, then need a multistage centrifugal blower to satisfy the demand on the market at present, although multiple multistage centrifugal blower has been produced on the market at present, nevertheless generally, there are a lot of common faults, one of them, vertical connection between the bottom branch of current multistage centrifugal blower and the shell, lead to the overall stability of device not enough, two of them, current multistage centrifugal blower adopts integrated structure mostly, lead to can't carrying out timely maintenance to it when device inner structure appears damaging.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a multistage centrifugal blower for solving the above problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a multi-stage centrifugal blower comprises a blower shell, an air inlet, an air guide cover, a support rod, a rotating motor, a first fixing plate, a protective cover, a second fixing plate, a first transmission shaft, a second transmission shaft, an impeller, a clamping groove, a first gear, a second gear and a connecting crawler belt; the blower shell forms a main structure of the multistage centrifugal blower, the air inlet is arranged on the left side of the blower shell, the air guide cover is vertically fixed at the center of the top of the blower shell, the supporting rods are welded and fixed at the left side and the right side of the bottom of the blower shell, the rotating motor is horizontally fixed at the center of the bottom of the blower shell, the first fixing plate is welded and fixed at the edge of the right side of the blower shell, the protective cover is fixedly connected at the right side of the blower shell, the second fixing plate is welded and fixed at the edge of the left side of the protective cover, the first transmission shaft is horizontally connected in an internal cavity of the blower shell, the second transmission shaft is horizontally connected in the internal cavity of the blower shell and positioned at the right side of the first transmission shaft, the impeller is respectively fixed on the first transmission shaft and the second transmission shaft, and the clamping, the first gear is fixed on the first transmission shaft, the second gear is fixed on a rotating rod of the rotating motor and located on the left side of the clamping groove, and the connecting crawler is connected between the second transmission shaft and the rotating rod of the rotating motor.

Preferably, in order to rapidly maintain the interior of the device by detaching the protective cover when the interior of the device is damaged, the protective cover passes through the first fixing plate and the second fixing plate through screws and is locked by screwing the nut, and then is detachably connected with the blower shell.

Preferably, in order to ensure the air inlet amount through two air inlets and prevent dust from being sucked into the inner cavity of the shell of the blower through the filtering of the filter screen during air inlet, two air inlets are arranged, and a layer of filter screen is arranged on each air inlet.

Preferably, in order to ensure that the second transmission shaft can synchronously rotate clockwise with the rotating motor and upwards convey the airflow, the second transmission shaft synchronously rotates in the same direction with the rotating rod of the rotating motor through the connecting crawler.

Preferably, in order to ensure that the first transmission shaft can rotate anticlockwise synchronously with the rotating motor, the airflow is conveyed upwards, multi-stage centrifugation is realized, and the first transmission shaft is butted through the first gear and the second gear and further rotates reversely synchronously with the rotating rod of the rotating motor.

Preferably, in order to ensure the overall stability of the device, an included angle of 45 degrees is formed between the support rod and the blower shell, and a layer of rubber pad is glued to the bottom of the support rod.

The utility model has the advantages that: the air blower is reasonable in design, the protective cover penetrates through the first fixing plate and the second fixing plate through screws and is screwed and locked through the screw cap to be detachably connected with the air blower shell, when the inside of the air blower is damaged, the interior of the air blower can be quickly maintained through disassembling the protective cover, two air inlets are arranged, a layer of filter screen is arranged on each air inlet, the air inlet amount is ensured through the two air inlets, the dust is prevented from being sucked into a cavity inside the air blower shell during air inlet through filtering of the filter screens, the second transmission shaft synchronously and unidirectionally rotates with a rotating rod of the rotating motor through a connecting crawler belt, the second transmission shaft synchronously and clockwise rotates with the rotating motor to upwards transmit air flow, the first transmission shaft is butted with the second gear through the first gear and the second gear to synchronously and reversely rotate with the rotating rod of the rotating motor, and the first transmission shaft is ensured to synchronously and, the airflow is conveyed upwards to realize multi-stage centrifugation.

Drawings

FIG. 1 is a schematic view of the external structure of the present invention;

FIG. 2 is a schematic view of the split structure of the present invention;

fig. 3 is a schematic view of the internal structure of the present invention.

In the figure: 1. the air blower comprises a blower shell, 2, an air inlet, 3, an air guide cover, 4, a support rod, 5, a rotating motor, 6, a first fixing plate, 7, a protective cover, 8, a second fixing plate, 9, a first transmission shaft, 10, a second transmission shaft, 11, an impeller, 12, a clamping groove, 13, a first gear, 14, a second gear and 15 and a connecting crawler belt.

Detailed Description

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 to 3, a multistage centrifugal blower includes a blower housing 1, an air inlet 2, an air guiding cover 3, a supporting rod 4, a rotating motor 5, a first fixing plate 6, a protecting cover 7, a second fixing plate 8, a first transmission shaft 9, a second transmission shaft 10, an impeller 11, a clamping groove 12, a first gear 13, a second gear 14 and a connecting track 15; the blower housing 1 constitutes a main structure of the multistage centrifugal blower, the air inlet 2 is arranged on the left side of the blower housing 1, the air guiding cover 3 is vertically fixed at the top center of the blower housing 1, the supporting rods 4 are welded and fixed at the left and right sides of the bottom of the blower housing 1, the rotating motor 5 is horizontally fixed at the bottom center of the blower housing 1, the first fixing plate 6 is welded and fixed at the right edge of the blower housing 1, the protective cover 7 is fixedly connected at the right side of the blower housing 1, the second fixing plate 8 is welded and fixed at the left edge of the protective cover 7, the first transmission shaft 9 is horizontally connected in an internal cavity of the blower housing 1, the second transmission shaft 10 is horizontally connected in the internal cavity of the blower housing 1 and is located at the right side of the first transmission shaft 9, and the impellers 11 are respectively fixed at the first transmission, On the second transmission shaft 10, draw-in groove 12 sets up respectively on the bull stick of rotating motor 5 and second transmission shaft 10, first gear 13 is fixed on first transmission shaft 9, second gear 14 is fixed on the bull stick of rotating motor 5, and is located the left side of draw-in groove 12, connect track 15 and connect between the bull stick of second transmission shaft 10 and rotating motor 5, the model of rotating motor 5 is Y160M 1-2.

The protective cover 7 penetrates through the first fixing plate 6 and the second fixing plate 8 through screws and is screwed and locked through nuts so as to be detachably connected with the blower shell 1, when the inside of the device is damaged, the interior of the device can be quickly maintained through dismounting the protective cover 7, two air inlets 2 are arranged, a layer of filter screen is arranged on each air inlet 2, the air inlet amount is ensured through the two air inlets 2, the dust is prevented from being sucked into the inner cavity of the blower shell 1 during air inlet through filtering of the filter screens, the second transmission shaft 10 synchronously rotates in the same direction with the rotating rod of the rotating motor 5 through the connecting crawler 15, the second transmission shaft 10 synchronously rotates clockwise with the rotating motor 5 to convey the air flow upwards, the first transmission shaft 9 is butted through the first gear 13 and the second gear 14 and further synchronously rotates in the opposite direction with the rotating rod of the rotating motor 5, guarantee first transmission shaft 9 and can rotate motor 5 synchronous anticlockwise, upwards carry the air current, realize multistage centrifugation.

The working principle is as follows: when the air blower is used, the first transmission shaft 9 is firstly butted with the second gear 14 through the first gear 13, and then is in synchronous reverse rotation with a rotating rod of the rotating motor 5, then the second transmission shaft 10 is in synchronous same-direction rotation with the rotating rod of the rotating motor 5 through the connecting crawler 15, then the protective cover 7 passes through the first fixing plate 6 and the second fixing plate 8 through screws, and is locked through screwing nuts, when the air blower works, the rotating shaft of the rotating motor 5 rotates forwards, at the moment, the first transmission shaft 9 rotates reversely, the second transmission shaft 10 rotates forwards, and drives the impeller 11 to rotate, and air flow is discharged through the air guide cover 3.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A multistage centrifugal blower characterized by: the air-conditioner comprises a blower shell (1), an air inlet (2), an air guide cover (3), a support rod (4), a rotating motor (5), a first fixing plate (6), a protective cover (7), a second fixing plate (8), a first transmission shaft (9), a second transmission shaft (10), an impeller (11), a clamping groove (12), a first gear (13), a second gear (14) and a connecting crawler (15); the blower shell (1) forms a main structure of the multistage centrifugal blower, the air inlet (2) is arranged on the left side of the blower shell (1), the air guide cover (3) is vertically fixed at the center of the top of the blower shell (1), the support rods (4) are fixedly welded at the left side and the right side of the bottom of the blower shell (1), the rotating motor (5) is horizontally fixed at the center of the bottom of the blower shell (1), the first fixing plate (6) is fixedly welded at the edge of the right side of the blower shell (1), the protection cover (7) is fixedly connected at the right side of the blower shell (1), the second fixing plate (8) is fixedly welded at the edge of the left side of the protection cover (7), the first transmission shaft (9) is horizontally connected in an internal cavity of the blower shell (1), the second transmission shaft (10) is horizontally connected in the internal cavity of the blower shell (1), and be located the right side of first transmission shaft (9), impeller (11) are fixed respectively on first transmission shaft (9), second transmission shaft (10), draw-in groove (12) set up respectively on bull stick and second transmission shaft (10) of rotating motor (5), first gear (13) are fixed on first transmission shaft (9), second gear (14) are fixed on the bull stick of rotating motor (5), and are located the left side of draw-in groove (12), connect track (15) and connect between the bull stick of second transmission shaft (10) and rotating motor (5).

2. A multistage centrifugal blower as claimed in claim 1, wherein: the protective cover (7) penetrates through the first fixing plate (6) and the second fixing plate (8) through screws, is screwed and locked through nuts, and is detachably connected with the blower shell (1).

3. A multistage centrifugal blower as claimed in claim 1, wherein: the number of the air inlets (2) is two, and a layer of filter screen is arranged on the air inlets (2).

4. A multistage centrifugal blower as claimed in claim 1, wherein: the second transmission shaft (10) synchronously rotates in the same direction with a rotating rod of the rotating motor (5) through a connecting crawler belt (15).

5. A multistage centrifugal blower as claimed in claim 1, wherein: the first transmission shaft (9) is in butt joint with the first gear (13) and the second gear (14) and further rotates in the opposite direction of the rotating rod of the rotating motor (5) synchronously.

6. A multistage centrifugal blower as claimed in claim 1, wherein: an included angle of 45 degrees is formed between the supporting rod (4) and the blower shell (1), and a layer of rubber pad is glued at the bottom of the supporting rod (4).