CN213959907U

CN213959907U - Industrial centrifugal fan

Info

Publication number: CN213959907U
Application number: CN202120152404.8U
Authority: CN
Inventors: 张勇; 曾凡张; 邓孟峰
Original assignee: Foshan Beiaole Electric Appliance Co ltd
Current assignee: Foshan Beiaole Electric Appliance Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-08-13
Anticipated expiration: 2031-01-22

Abstract

The utility model discloses an industrial centrifugal fan, which comprises a volute, a motor, a wind wheel and a wind inlet mask, wherein the motor is a double-output-shaft motor, and the wind wheel is arranged on output shafts at two ends; a positioning mechanism is arranged in the volute, the positioning mechanism further comprises a ring gear, a rack and a gear, an annular groove and a straight groove are formed in the volute, the ring gear is connected in the annular groove in a sliding mode, the rack is connected in the straight groove in a sliding mode, the gear is connected in the volute in a shaft and meshed with the ring gear and the rack, a handle is arranged on the outer side of the ring gear, a sliding groove for the handle to rotate is formed in the volute, teeth are formed in the side wall of the sliding groove, and a limiting mechanism matched with the teeth is arranged on the handle; by adopting a double-output-shaft motor, double wind wheels can be installed, and air is fed from two sides of the volute, so that the air inlet amount is increased; the positioning mechanism installed in the volute adopts an iris mechanism, the compatibility of motors with different sizes is good, the limiting mechanism can limit the iris mechanism, and the positioning stability of the motor is guaranteed.

Description

Industrial centrifugal fan

Technical Field

The utility model relates to a centrifugal fan field specifically is an industrial type centrifugal fan.

Background

The centrifugal fan is a machine which increases gas pressure and discharges gas by means of input mechanical energy, and is a driven fluid machine; centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; the existing centrifugal fan adopts a single motor to drive a single wind wheel, so that the wind power of equipment is small; the volute casing adopts the customization volute casing that matches with the motor, if the motor size changes in the in-process of changing the motor, need change the volute casing together, and the cost is higher.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the prior art, the utility model discloses an industrial centrifugal fan, the technical scheme who adopts is, including spiral case, motor, wind wheel, inlet mask and support, the motor is installed in the spiral case, the wind wheel is installed on the output shaft of motor, the inlet mask is installed on the spiral case, the inlet mask corresponds with the wind wheel position, the support is installed below the spiral case, the wind wheel center is the circular truncated cone shape casing, the annular array of wheel blade of wind wheel is around the circular truncated cone; the motor is a double-output-shaft motor, and the wind wheels are arranged on output shafts at two ends of the motor; there is positioning mechanism in the spiral case, positioning mechanism still includes ring gear, rack and gear, annular groove and straight flute are equipped with in the spiral case, the ring gear inner ring has tooth, just ring gear is in sliding connection in the annular groove, the rack is in sliding connection in the straight flute, the axle connection has the gear in the spiral case, the gear with ring gear the rack meshes mutually, the ring gear outside is equipped with the handle, it has the confession to open on the spiral case the handle pivoted spout, it has tooth to open on the spout lateral wall, be equipped with on the handle with tooth matched with stop gear.

As an optimal technical scheme of the utility model, the rack has six, and annular array distributes in the spiral case, wherein two the rack is in on the horizontal central line, is located on the horizontal central line the mounting panel is equipped with on the rack, have on the mounting panel with the corresponding bolt hole in motor position.

As a preferred technical scheme of the utility model, stop gear includes spacer pin and unblock pole, the spacer pin with the tooth meshes mutually, the unblock pole is L type pole, the unblock pole with the spacer pin links to each other, there is the confession on the handle the spacer pin with the gliding spout of unblock pole, the unblock pole with compression spring has been pressed between the spout inner wall.

The utility model has the advantages that: the utility model adopts the double-output shaft motor, double wind wheels can be installed, and air is fed from two sides of the volute, so that the air inlet amount is increased; the positioning mechanism installed in the volute adopts an iris mechanism, the compatibility of motors with different sizes is good, the limiting mechanism can limit the iris mechanism, and the positioning stability of the motor is guaranteed.

Furthermore, the racks of the positioning mechanism are provided with six racks, the racks on two sides can be additionally provided with the mounting plates to position and fix the motor for one time, and the four racks on the upper portion and the lower portion can simultaneously support the motor to position for the second time from the upper portion and the lower portion to prevent shaking.

Drawings

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

FIG. 2 is a schematic view of the volute and the handle of the present invention;

FIG. 3 is a schematic structural view of the positioning mechanism of the present invention;

FIG. 4 is a first diagram of the structure of the limiting mechanism of the present invention;

fig. 5 is a second diagram of the structure schematic diagram of the limiting mechanism of the present invention.

In the figure: 1-volute, 2-motor, 3-wind wheel, 4-inlet mask, 5-bracket, 6-handle, 7-ring gear, 8-rack, 9-gear, 10-tooth, 11-limit pin, 12-unlocking rod.

Detailed Description

Example 1

As shown in fig. 1 to 5, the utility model discloses an industrial centrifugal fan, the technical scheme of adoption is, including spiral case 1, motor 2, wind wheel 3, inlet mask 4 and support 5, motor 2 installs in spiral case 1, wind wheel 3 installs on the output shaft of motor 2, be equipped with inlet mask 4 on spiral case 1, inlet mask 4 corresponds with wind wheel 3 position, support 5 installs in spiral case 1 below, wind wheel 3 center is the circular platform shape casing, the wheel leaf annular array of wind wheel is around the circular platform; the motor 2 is a double-output-shaft motor, and the wind wheels 3 are arranged on output shafts at two ends of the motor; there is positioning mechanism in the spiral case 1, positioning mechanism still includes ring gear 7, rack 8 and gear 9, there are annular groove and straight flute in the spiral case 1, ring gear 7 inner ring has tooth, just ring gear 7 is in sliding connection in the annular groove, rack 8 is in sliding connection in the straight flute, there is gear 9 in the spiral case 1 axle connection, gear 9 with ring gear 7 rack 8 meshes mutually, the handle 6 is equipped with in the ring gear 7 outside, it has the confession to open on the spiral case 1 the handle pivoted spout, it has tooth 10 to open on the spout lateral wall, be equipped with on the handle 6 with tooth 10 matched with stop gear.

As an optimal technical scheme of the utility model, rack 8 has six, and the annular array distributes in the spiral case 1, wherein two rack 8 is in the horizontal midline, is located on the horizontal midline the mounting panel is equipped with on the rack 8, have on the mounting panel with the corresponding bolt hole in 2 positions of motor.

As a preferred technical scheme of the utility model, stop gear includes spacer pin 11 and unblock pole 12, spacer pin 11 with tooth 10 meshes mutually, unblock pole 12 is L type pole, unblock pole 12 with spacer pin 11 links to each other, have the confession on the handle 6 spacer pin 11 with the gliding spout of unblock pole 12, unblock pole 12 with compression spring has been pressed between the spout inner wall.

The utility model discloses a theory of operation: the motor 2 is placed in the volute 1, the handle 6 is rotated to drive the ring gear 7 to rotate, the ring gear 7 drives the rack 8 to approach the motor 2 through the gear 9, meanwhile, the teeth 10 extrude the limiting pin 11, the limiting pin 11 is matched with the teeth 10 to limit gradually, when the motor 2 is tightly clamped by the mounting plate, the motor 2 is fixed on the mounting plate through bolts, at the moment, the rack 8 also completes the positioning of the motor 2, the wind wheel 3 is mounted on the output shaft of the motor 2 and the wind inlet cover 4 is mounted, and the mounting is completed; when the motor 2 needs to be replaced, after the air inlet mask 4 and the wind wheel 3 are disassembled, the fixation between the motor 2 and the mounting plate is released, the unlocking rod 12 is pressed, the unlocking rod 12 drives the limiting pin 11 to release the limiting, the handle 6 is rotated reversely, the positioning mechanism is opened, and the motor replacement is carried out.

The mechanical connection according to the present invention is a conventional means used by those skilled in the art, and can be suggested by limited tests, which is common knowledge.

Components not described in detail herein are prior art.

Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge range of those skilled in the art, and modifications or variations without creative efforts are still within the scope of the present invention.

Claims

1. The utility model provides an industrial centrifugal fan, includes spiral case (1), motor (2), wind wheel (3), inlet mask (4) and support (5), motor (2) are installed in spiral case (1), install wind wheel (3) on the output shaft of motor (2), be equipped with on spiral case (1) inlet mask (4), inlet mask (4) with wind wheel (3) position is corresponding, install support (5) spiral case (1) below, its characterized in that: the center of the wind wheel (3) is a circular truncated cone-shaped shell, and the wheel blades of the wind wheel are annularly arrayed around the circular truncated cone; the motor (2) is a double-output-shaft motor, and the wind wheels (3) are arranged on output shafts at two ends of the motor; there is positioning mechanism in spiral case (1), positioning mechanism still includes ring gear (7), rack (8) and gear (9), annular groove and straight flute are in spiral case (1), ring gear (7) inner ring has tooth, just ring gear (7) are in annular groove sliding connection, rack (8) are in straight flute sliding connection, spiral case (1) interior hub connection has gear (9), gear (9) with ring gear (7) rack (8) mesh mutually, handle (6) are equipped with in ring gear (7) outside, it has the confession to open on spiral case (1) handle pivoted spout, it has tooth (10) to open on the spout lateral wall, be equipped with on handle (6) with tooth (10) matched with stop gear.

2. An industrial centrifugal fan according to claim 1, characterized in that: the spiral case is characterized in that the number of the racks (8) is six, the racks are distributed in the spiral case (1) in an annular array mode, two of the racks (8) are located on a horizontal central line, a mounting plate is arranged on the racks (8) on the horizontal central line, and bolt holes corresponding to the positions of the motors (2) are formed in the mounting plate.

3. An industrial centrifugal fan according to claim 1, characterized in that: stop gear includes spacer pin (11) and unblock pole (12), spacer pin (11) with tooth (10) mesh mutually, unblock pole (12) are L type pole, unblock pole (12) with spacer pin (11) link to each other, have the confession on handle (6) spacer pin (11) with unblock pole (12) gliding spout, unblock pole (12) with compression spring has been pressed between the spout inner wall.