CN221591307U

CN221591307U - Centrifugal ventilator with adjustable blades

Info

Publication number: CN221591307U
Application number: CN202420094643.6U
Authority: CN
Inventors: 黄正加; 黄华; 李国青; 金龙山
Original assignee: Yancheng Shenlong Fan Co ltd
Current assignee: Yancheng Shenlong Fan Co ltd
Priority date: 2024-01-15
Filing date: 2024-01-15
Publication date: 2024-08-23
Anticipated expiration: 2034-01-15

Abstract

The utility model belongs to the technical field of centrifugal ventilators, and particularly relates to a centrifugal ventilator with adjustable blades, which comprises a mounting frame, wherein the mounting frame is provided with a motor, the mounting frame is provided with a shell, an output shaft of the motor is fixedly provided with a coupling disc, the coupling disc is provided with impellers, each impeller comprises impeller plates, the impeller plates are connected with the coupling disc through bolts, a plurality of blades are arranged between the impeller plates, the impeller plates are provided with arc grooves, the blades penetrate through connecting rods, the connecting rods are fixedly connected with the impeller plates, the connecting rods are slidably arranged in the arc grooves, the impeller plates are fixedly connected with threaded sleeves, and an adjusting component is arranged between the impeller plates; through setting up the connecting rod slip in the arc wall, drive the blade by the connecting rod for the blade has the basis of angularly adjustable, through setting up the runing rest, drive by pivoted runing rest and lean on the connecting rod that advances impeller center, make the connecting rod rotate in spout and arc wall, realize not dismantling under the condition of casing to adjust the blade angle.

Description

Centrifugal ventilator with adjustable blades

Technical Field

The utility model belongs to the technical field of centrifugal ventilators, and particularly relates to a centrifugal ventilator with adjustable blades.

Background

The centrifugal ventilator is a machine for increasing the pressure of gas by mechanical energy and then conveying the gas out, and is one of four major components in a dust removing ventilation system.

However, in the centrifugal fan of the prior art, the impeller blade angle is fixed, the ventilation quantity is difficult to change, and the fan with adjustable quantity is less on the market, and the fan blades inside the fan are basically adjusted only after the casing is disassembled, so that the fan is inconvenient.

Disclosure of utility model

The purpose of the utility model is that: the centrifugal ventilator with the adjustable blades aims to solve the problems in the background art.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

The utility model provides a centrifugal fan of adjustable blade, includes the mounting bracket, the mounting bracket can install centrifugal fan at the reservation position of workplace, prevents that it from taking place the displacement because of vibrations at the during operation, the motor is installed to the mounting bracket rear end, the motor is used for providing power for the device, the shell is installed to the mounting bracket front end, the air intake has been seted up at the middle part of shell front end, the shell upper end is equipped with the air outlet, is used for collecting and guiding the medium gas that carries from centrifugal fan impeller, the output shaft of motor is fixed with the shaft coupling dish, the shaft coupling dish is used for being connected impeller and motor's output shaft, the shaft coupling dish front end is equipped with the impeller;

The impeller comprises two impeller plates, the impeller plates at the rear side are connected with the front end of the coupling disc through bolts, a plurality of blades are arranged between the impeller plates, a plurality of arc grooves are formed in the two impeller plates, each blade penetrates through two connecting rods, the connecting rods far away from the center of the impeller are fixedly connected with the two impeller plates, the connecting rods leaning against the center of the impeller are slidably arranged between the two opposite arc grooves, the impeller plates at the rear side are fixedly connected with threaded sleeves, an adjusting assembly is arranged between the two impeller plates, the connecting rods far away from the center of the impeller are slidably arranged in the arc grooves, so that the blades can rotate between the two impeller plates, and the blades have an angle-adjustable foundation.

The adjusting component comprises a rotating support, the rotating support is sleeved on the outer side of the threaded sleeve, the rotating support is abutted to the impeller plate on the rear side through a fastening nut, a sliding groove is formed in the rotating support, the connecting rods which lean against the center of the impeller are all located between the sliding grooves, and a hexagonal rotating block is arranged at the front end of the rotating support.

The front end of the rotating support is provided with a dial, and the front end face of the motor output shaft is provided with an indication arrow.

The shell is connected with an auxiliary supporting ring through bolts, and the auxiliary supporting ring is abutted with the inner ring of the impeller plate at the front side.

And a hoisting buckle is fixed at the upper end of the motor.

According to the utility model, the connecting rod is arranged in the arc-shaped groove in a sliding way, the connecting rod drives the blade, so that the blade can rotate between the two impeller plates, the blade has an angle-adjustable foundation, and the rotating bracket is arranged, so that the rotating bracket drives the connecting rod leaning against the center of the impeller, and the connecting rod rotates in the sliding groove and the arc-shaped groove, so that the angle of the blade can be adjusted without dismantling a shell.

Drawings

The utility model may be further illustrated by means of non-limiting examples given in the accompanying drawings.

FIG. 1 is a schematic view of a vane-adjustable centrifugal fan according to the present utility model;

fig. 2 is a schematic view of a vane-adjustable centrifugal fan according to the present utility model with its housing removed.

FIG. 3 is a schematic view of the impeller structure of an adjustable vane centrifugal fan according to the present utility model;

fig. 4 is a schematic front view of a vane-adjustable centrifugal fan according to the present utility model.

The main reference numerals are as follows:

The device comprises a mounting frame 100, a motor 101, a shell 102, a coupling disc 103, an impeller 104, an impeller plate 105, blades 106, arc-shaped grooves 107, a connecting rod 108, a threaded sleeve 109, a rotating bracket 200, a sliding chute 201, a hexagonal rotating block 202, a dial 300, an indication arrow 301, an auxiliary supporting ring 400 and a hoisting buckle 500.

Detailed Description

In order that those skilled in the art will better understand the present utility model, the following technical scheme of the present utility model will be further described with reference to the accompanying drawings and examples.

Embodiment one:

1-4, a centrifugal ventilator with adjustable blades comprises a mounting frame 100, wherein a motor 101 is mounted at the rear end of the mounting frame 100, a housing 102 is mounted at the front end of the mounting frame 100, a coupling disc 103 is fixed on an output shaft of the motor 101, and an impeller 104 is mounted at the front end of the coupling disc 103;

The impeller 104 comprises two impeller plates 105, the impeller plates 105 at the rear side are connected to the front end of the coupling disc 103 through bolts, a plurality of blades 106 are arranged between the impeller plates 105, a plurality of arc grooves 107 are formed in each of the two impeller plates 105, two connecting rods 108 penetrate through each of the blades 106, the connecting rod 108 far away from the center of the impeller 104 is fixedly connected with the two impeller plates 105, the connecting rod 108 close to the center of the impeller 104 is slidably arranged between the two opposite arc grooves 107, the impeller plates 105 at the rear side are fixedly connected with a threaded sleeve 109, and an adjusting component is arranged between the two impeller plates 105;

The mounting bracket 100 can install centrifugal fan in the reservation position of workplace, prevent that it from taking place the displacement because of vibrations at the during operation, and motor 101 is used for providing power for the device, and the air intake has been seted up at the middle part of shell 102 front end, and the shell upper end is equipped with the air outlet for be collecting and guiding the medium gas that carries from centrifugal fan impeller, shaft coupling dish 103 is used for being connected impeller 104 with motor 101's output shaft, and the connecting rod 108 that keeps away from impeller 104 center slides and locates in arc wall 107 for blade 106 can rotate between two impeller plates 105, and then makes blade 106 have the angularly adjustable basis.

The adjusting component comprises a rotating bracket 200, the rotating bracket 200 is sleeved on the outer side of the threaded sleeve 109, the rotating bracket 200 is abutted against the impeller plate 105 at the rear side through a fastening nut, the rotating bracket 200 is provided with a sliding groove 201, a connecting rod 108 which is close to the center of the impeller 104 is positioned between the sliding grooves 201, and the front end of the rotating bracket 200 is provided with a hexagonal rotating block 202;

the staff rotates the rotating bracket 200 through rotating the hexagonal rotating block 202 on the rotating bracket 200, so that the connecting rod 108 leaning on the center of the impeller 104 rotates in the sliding groove 201 and the arc-shaped groove 107, and the angle of the blade 106 is adjusted.

The front end of the rotary bracket 200 is marked with a dial 300, and the front end surface of the output shaft of the motor 101 is marked with an indication arrow 301;

The dial 300 is used in conjunction with the indicator arrow 301 and is relatively fixed when the fan is rotated, so that a worker can have a clear reference when adjusting the angle.

The shell 102 is connected with an auxiliary supporting ring 400 through bolts, and the auxiliary supporting ring 400 is abutted with the inner ring of the front side impeller plate 105;

the auxiliary support ring 400 can make the impeller 104 support more stable, and does not influence the medium gas entering the fan from the air inlet of the housing 102.

A hoisting buckle 500 is fixed at the upper end of the motor 101;

Because centrifugal fan's volume, weight are all great, hoist and mount knot 500, can be when transporting quick-connect with the loop wheel machine.

The working principle of the embodiment is as follows: when the angle is required to be adjusted, a worker uses a socket wrench to extend into the centrifugal ventilator from the air inlet at the front end of the housing 102, screws a fastening nut at the front end of the rotating support 200, so that the rotating support 200 can be rotated, then uses a socket wrench of another specification to clamp the hexagonal rotating block 202 and rotate the socket wrench, so that the rotating support 200 rotates, and further the connecting rod 108 leaning on the center of the impeller 104 rotates in the sliding groove 201 and the arc groove 107, thereby realizing the adjustment of the angle of the blade 106.

In the present embodiment, the angle of the blade 106 is adjusted by sliding the connecting rod 108 in the arc groove 107 so that the blade 106 has an angle-adjustable base, and by providing the rotating bracket 200, the rotating bracket 200 drives the connecting rod 108 leaning into the center of the impeller 104.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims of this utility model, which are within the skill of those skilled in the art, can be made without departing from the spirit and scope of the utility model disclosed herein.

Claims

1. The utility model provides an adjustable vane's centrifugal fan, includes the mounting bracket, the motor is installed to the mounting bracket rear end, its characterized in that: the front end of the mounting frame is provided with a shell, the output shaft of the motor is fixed with a coupling disc, and the front end of the coupling disc is provided with an impeller;

the impeller comprises two impeller plates, the impeller plates at the rear side are connected with the front end of the coupling disc through bolts, a plurality of blades are arranged between the impeller plates, a plurality of arc grooves are formed in the two impeller plates, each blade penetrates through two connecting rods, the connecting rods far away from the center of the impeller are fixedly connected with the two impeller plates, the connecting rods leaning against the center of the impeller are slidably arranged between the two opposite arc grooves, screw sleeves are fixedly connected with the impeller plates at the rear side, and an adjusting component is arranged between the two impeller plates.

2. A vane-adjustable centrifugal fan according to claim 1, wherein: the adjusting component comprises a rotating support, the rotating support is sleeved on the outer side of the threaded sleeve, the rotating support is abutted to the impeller plate on the rear side through a fastening nut, a sliding groove is formed in the rotating support, the connecting rods which lean against the center of the impeller are all located between the sliding grooves, and a hexagonal rotating block is arranged at the front end of the rotating support.

3. A vane-adjustable centrifugal fan according to claim 2, characterized in that: the front end of the rotating support is provided with a dial, and the front end face of the motor output shaft is provided with an indication arrow.

4. A vane-adjustable centrifugal fan according to claim 1, wherein: the shell is connected with an auxiliary supporting ring through bolts, and the auxiliary supporting ring is abutted with the inner ring of the impeller plate at the front side.

5. A vane-adjustable centrifugal fan according to claim 1, wherein: and a hoisting buckle is fixed at the upper end of the motor.