CN216767882U

CN216767882U - Damping mechanism of centrifugal fan

Info

Publication number: CN216767882U
Application number: CN202123168240.7U
Authority: CN
Inventors: 伍木成
Original assignee: Guangdong Hongning Fire Ventilation Equipment Co ltd
Current assignee: Guangdong Hongning Fire Ventilation Equipment Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-06-17
Anticipated expiration: 2031-12-16

Abstract

The utility model relates to the technical field of centrifugal fan equipment, in particular to a damping mechanism of a centrifugal fan, which comprises the centrifugal fan, wherein an installation block is arranged outside the centrifugal fan, the damping mechanism is arranged outside the installation block, and a fixing mechanism is arranged outside the damping mechanism. The utility model has the advantages that: by arranging the damping mechanism, when the centrifugal fan damping mechanism is used, the mechanism effectively damps the vibration generated by the centrifugal fan, avoids the damage to the centrifugal fan caused by the direct action of the damping force on the centrifugal fan, performs damping protection on the centrifugal fan, and improves the damping property of the damping mechanism of the centrifugal fan; through setting up fixed establishment, when using, drive the bracer through the strut and remove downwards, the bracer contacts with ground, increases frictional force, and this mechanism has guaranteed centrifugal fan at the stability of during operation, avoids centrifugal fan to take place the skew, has improved centrifugal fan's steadiness to this centrifugal fan's damper's practicality has been improved.

Description

Damping mechanism of centrifugal fan

Technical Field

The utility model relates to the technical field of centrifugal fan equipment, in particular to a damping mechanism of a centrifugal fan.

Background

The centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; the centrifugal fan accelerates gas by using an impeller rotating at high speed according to the principle that kinetic energy is converted into potential energy, and then decelerates and changes the flow direction so as to convert the kinetic energy into the potential energy (pressure). In a single stage centrifugal fan, the gas enters the impeller from an axial direction, changes to a radial direction as it flows through the impeller, and then enters the diffuser. In diffusers, the gas changes flow direction and the increase in conduit cross-sectional area slows the gas flow, which converts kinetic energy into pressure energy. The pressure increase occurs primarily in the impeller and secondarily in the diffusion process. In multistage centrifugal fan, make the air current get into next impeller with the backward flow ware, produce higher pressure, centrifugal fan's theory of operation is the same basically with turbo compressor, all because the gas velocity of flow is lower, pressure variation is little, generally need not consider the change of gaseous specific volume, handles as incompressible fluid gas promptly, and off-line fan is whole to be formed by centrifugal fan and installation base, is the integral type state, carries out work.

With regard to centrifugal fans in the prior art, the following disadvantages are also present:

the fixed platform that is used for high-pressure centrifugal fan of generally used in the existing market, its most structure is the same, and the shock attenuation effect that has is also not ideal, and centrifugal fan makes centrifugal fan take place the skew easily in the vibrations that the during operation produced simultaneously, has reduced the stability of centrifugal fan during operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a damping mechanism of a centrifugal fan.

The purpose of the utility model is realized by the following technical scheme: a damping mechanism of a centrifugal fan comprises the centrifugal fan, wherein an installation block is arranged outside the centrifugal fan, a damping mechanism is arranged outside the installation block, and a fixing mechanism is arranged outside the damping mechanism;

the damping mechanism comprises a fixing plate, a fixing column, a damping spring, a buffering column, a connecting frame, a threaded column, a buffering spring, a guide column, a sliding block and a fixing spring, the fixing plate is fixedly installed outside the installation block, the fixing column is fixedly connected to the outside of the fixing plate, the damping spring is fixedly connected to the outside of the fixing column, the buffering column is fixedly installed at one end of the damping spring, the connecting frame is fixedly connected to the outside of the buffering column, the threaded column is fixedly connected to the outside of the connecting frame, the buffering spring is sleeved on the outside of the threaded column, the guide column is fixedly connected to the outside of the connecting frame, the sliding block is fixedly connected to one end of the buffering column, and the fixing spring is fixedly connected to the outside of the sliding block.

Preferably, the fixing mechanism comprises a bottom plate, a first groove, a second groove, an adjusting column, a supporting frame and a supporting block.

Preferably, the bottom plate is connected to the outside of the sliding block in a sliding mode, a first groove is formed in the bottom plate, a second groove is formed in the bottom plate, an adjusting column is connected to the inner portion of the bottom plate in a threaded mode, a support frame is connected to one end of the adjusting column in a rotating mode, and a support block is fixedly connected to the outside of the support frame.

Preferably, the outer part of the damping mechanism is rotatably connected with a hanging ring, and the outer part of the fixing mechanism is fixedly connected with a movable wheel.

Preferably, the external thread of the threaded column is connected with a nut, and the fixing plate is inserted outside the threaded column.

Preferably, the four corner edges of the connecting frame are fixedly connected with guide pillars, and the guide pillars are slidably connected inside the bottom plate through second grooves.

Preferably, the sliding block is connected with the inside of the bottom plate through a first groove in a sliding mode, one end of the fixed spring is fixedly connected with the sliding block, and the other end of the fixed spring is fixedly connected with the bottom plate.

Preferably, the adjusting column is in threaded connection with the inside of the bottom plate, a third groove is formed in the support frame, and one end of the adjusting column is rotatably connected with the inside of the support frame through the third groove.

The utility model has the following advantages:

1. the damping mechanism of the centrifugal fan is characterized in that the damping mechanism is arranged, when the damping mechanism is used, the centrifugal fan is fixedly arranged outside a fixed plate, the fixed column is matched with a buffer column through a damping spring to be used for damping the fixed plate, a nut is connected to the outside of a threaded column in a threaded manner, secondary damping is carried out on the fixed plate under the action of the buffer spring, the buffer column is connected with a bottom plate in a sliding manner through a sliding block, a guide column is connected to the inside of the bottom plate in a sliding manner through a second groove, and under the matching of the fixed spring, damping force generated by the centrifugal fan is absorbed;

2. this centrifugal fan's damper, through setting up fixed establishment, when using, adjust the inside of post threaded connection at the bottom plate, the third recess has been seted up to the inside of strut, the one end of regulation post is passed through the third recess and is rotated the inside of connecting at the strut, when centrifugal fan removes operating position, rotate the regulation post, adjust the post downstream, thereby drive the bracer downstream through the strut, bracer and ground contact, increase friction, this mechanism has guaranteed centrifugal fan stability at the during operation, avoid centrifugal fan to take place the skew, centrifugal fan's steadiness has been improved, thereby this centrifugal fan's damper's practicality has been improved.

Drawings

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

FIG. 2 is a schematic structural view of the shock absorbing mechanism of the present invention;

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

fig. 4 is a schematic structural view of an adjusting column and a bracket of the present invention.

In the figure: 1-centrifugal fan, 2-mounting block, 3-damping mechanism, 301-fixing plate, 302-fixing column, 303-damping spring, 304-buffer column, 305-connecting frame, 306-threaded column, 307-buffer spring, 308-guide column, 309-sliding block, 310-fixing spring, 4-fixing mechanism, 401-bottom plate, 402-first groove, 403-second groove, 404-adjusting column, 405-support frame, 406-support block, 5-hanging ring and 6-moving wheel.

Detailed Description

The utility model will be further described with reference to the accompanying drawings, but the scope of the utility model is not limited to the following.

As shown in fig. 1-4, a damping mechanism of a centrifugal fan comprises a centrifugal fan 1, wherein an installation block 2 is arranged outside the centrifugal fan 1, a damping mechanism 3 is arranged outside the installation block 2, and a fixing mechanism 4 is arranged outside the damping mechanism 3;

the damping mechanism 3 comprises a fixed plate 301, a fixed column 302, a damping spring 303, a buffering column 304, a connecting frame 305, a threaded column 306, a damping spring 307, a guide column 308, a sliding block 309 and a fixed spring 310, wherein the fixed plate 301 is fixedly arranged outside the mounting block 2, the fixed column 302 is fixedly connected outside the fixed plate 301, the damping spring 303 is fixedly connected outside the fixed column 302, the buffering column 304 is fixedly arranged at one end of the damping spring 303, the connecting frame 305 is fixedly connected outside the buffering column 304, the threaded column 306 is fixedly connected outside the connecting frame 305, the buffering spring 307 is sleeved outside the threaded column 306, the guide column 308 is fixedly connected outside the connecting frame 305, the sliding block 309 is fixedly connected at one end of the buffering column 304, and the fixed spring 310 is fixedly connected outside the sliding block 309, when the buffer column is used, a groove is formed in the fixed column 302, and one end of the buffer column 304 is matched with the groove.

As a preferred technical solution of the present invention, the fixing mechanism 4 includes a bottom plate 401, a first groove 402, a second groove 403, an adjusting column 404, a supporting frame 405 and a supporting block 406, and when in use, the mechanism ensures the stability of the centrifugal fan during operation, prevents the centrifugal fan from deviating, improves the stability of the centrifugal fan, and thus improves the practicability of the damping mechanism of the centrifugal fan.

As a preferable technical scheme of the utility model, a bottom plate 401 is connected outside a sliding block 309 in a sliding manner, a first groove 402 is formed inside the bottom plate 401, a second groove 403 is formed inside the bottom plate 401, an adjusting column 404 is connected inside the bottom plate 401 in a threaded manner, one end of the adjusting column 404 is rotatably connected with a support frame 405, and a support block 406 is fixedly connected outside the support frame 405.

As a preferred technical scheme of the utility model, the outer part of the damping mechanism 3 is rotatably connected with a hanging ring 5, and the outer part of the fixing mechanism 4 is fixedly connected with a moving wheel 6, so that the centrifugal fan can be moved conveniently and pulled conveniently when the centrifugal fan is used, and people can use the centrifugal fan more conveniently.

As a preferred technical scheme of the utility model, the external thread of the threaded column 306 is connected with a nut, the fixing plate 301 is inserted outside the threaded column 306, when the damping mechanism is used, the mounting block 2 is fixedly mounted outside the fixing plate 301 through a bolt, the centrifugal fan 1 is fixedly mounted outside the fixing plate 301, the fixing column 302 is matched with the buffer column 304 through the damping spring 303 to be used for damping the fixing plate 301, the nut is connected outside the threaded column 306 in a threaded manner, secondary damping is performed on the fixing plate 301 under the action of the buffer spring 307, vibration generated by the centrifugal fan is effectively absorbed, damage to the centrifugal fan due to the fact that vibration force is directly applied to the centrifugal fan is avoided, the centrifugal fan is subjected to damping protection, and the damping performance of the damping mechanism of the centrifugal fan is improved.

As a preferred technical solution of the present invention, guide posts 308 are fixedly connected to four corner edges of the connecting frame 305, the guide posts 308 are slidably connected to the inside of the bottom plate 401 through the second grooves 403, when in use, nuts are screwed to the outside of the threaded posts 306, and under the action of the buffer springs 307, the fixing plate 301 is damped for the second time.

As a preferable technical scheme of the utility model, the sliding block 309 is connected with the inside of the bottom plate 401 in a sliding manner through the first groove 402, one end of the fixed spring 310 is fixedly connected with the sliding block 309, the other end of the fixed spring 310 is fixedly connected with the bottom plate 401, when the centrifugal fan is used, the buffer column 304 is connected with the bottom plate 401 in a sliding manner through the sliding block, and the guide column 308 is connected with the inside of the bottom plate 401 in a sliding manner through the second groove 403, so that the damping force generated by the centrifugal fan 1 is absorbed under the cooperation of the fixed spring 310, and the damage to the centrifugal fan caused by the direct action of the damping force on the centrifugal fan is avoided.

As a preferable technical scheme of the utility model, the adjusting column 404 is in threaded connection with the inside of the bottom plate 401, the inside of the bracket 405 is provided with a third groove, one end of the adjusting column 404 is rotatably connected with the inside of the bracket 405 through the third groove, when the centrifugal fan 2 moves to a working position in use, the adjusting column 404 is rotated, the adjusting column 404 moves downwards, so that the bracket 405 drives the supporting block 406 to move downwards, the supporting block 406 is in contact with the ground, and friction force is increased.

The working process of the utility model is as follows:

s1, when the centrifugal fan is used, the centrifugal fan 1 is fixedly installed outside the fixing plate 301, and the fixing column 302 is matched with the buffer column 304 through the damping spring 303 to play a damping role in the fixing plate 301;

s2, a nut is connected to the outer part of the threaded column 306 in a threaded manner, secondary shock absorption is carried out on the fixing plate 301 under the action of the buffer spring 307, the buffer column 304 is connected with the bottom plate 401 in a sliding manner through a sliding block, the guide column 308 is connected to the inner part of the bottom plate 401 in a sliding manner through the second groove 403, and shock absorption force generated by the centrifugal fan 1 is absorbed under the cooperation of the fixing spring 310;

s3, the adjusting column 404 is in threaded connection with the inside of the bottom plate 401, a third groove is formed in the inside of the bracket 405, and one end of the adjusting column 404 is rotatably connected with the inside of the bracket 405 through the third groove;

s4, when the centrifugal fan 2 moves to the working position, the adjusting column 404 is rotated, the adjusting column 404 moves downwards, the supporting block 406 is driven by the supporting frame 405 to move downwards, the supporting block 406 is in contact with the ground, and friction is increased.

In conclusion, by arranging the damping mechanism 3, when the centrifugal fan is used, the centrifugal fan 1 is fixedly installed outside the fixing plate 301, the fixing column 302 is matched with the buffer column 304 through the damping spring 303 to be used for damping the fixing plate 301, the nut is in threaded connection with the outside of the threaded column 306, secondary damping is performed on the fixing plate 301 under the action of the buffer spring 307, the buffer column 304 is in sliding connection with the bottom plate 401 through the sliding block, the guide column 308 is in sliding connection with the inside of the bottom plate 401 through the second groove 403, and under the matching of the fixing spring 310, the damping force generated by the centrifugal fan 1 is absorbed and reduced, so that the mechanism effectively absorbs and reduces the vibration generated by the centrifugal fan, the damage to the centrifugal fan caused by the direct action of the damping force on the centrifugal fan is avoided, the centrifugal fan is subjected to damping protection, and the damping performance of the damping mechanism of the centrifugal fan is improved; this centrifugal fan's damper, through setting up fixed establishment 4, when using, adjust post 404 threaded connection in the inside of bottom plate 401, the third recess has been seted up to the inside of strut 405, the one end of adjusting post 404 is passed through the third recess and is rotated the inside of connecting at strut 405, when 2 shift work positions of centrifugal fan, rotate and adjust post 404, it moves down to adjust post 404, thereby drive bracer 406 downstream through strut 405, bracer 406 and ground contact, increase friction, this mechanism has guaranteed centrifugal fan stability at the during operation, avoid centrifugal fan to take place the skew, centrifugal fan's steadiness has been improved, thereby this centrifugal fan's damper's practicality has been improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a damper of centrifugal fan which characterized in that: the centrifugal fan comprises a centrifugal fan (1), wherein an installation block (2) is arranged outside the centrifugal fan (1), a damping mechanism (3) is arranged outside the installation block (2), and a fixing mechanism (4) is arranged outside the damping mechanism (3);

the damping mechanism (3) comprises a fixing plate (301), a fixing column (302), a damping spring (303), a buffering column (304), a connecting frame (305), a threaded column (306), a buffering spring (307), a guide column (308), a sliding block (309) and a fixing spring (310), wherein the fixing plate (301) is fixedly arranged outside the mounting block (2), the fixing column (302) is fixedly connected to the outside of the fixing plate (301), the damping spring (303) is fixedly connected to the outside of the fixing column (302), the buffering column (304) is fixedly arranged at one end of the damping spring (303), the connecting frame (305) is fixedly connected to the outside of the buffering column (304), the threaded column (306) is fixedly connected to the outside of the connecting frame (305), the buffering spring (307) is sleeved on the outside of the threaded column (306), and the guide column (308) is fixedly connected to the outside of the connecting frame (305), one end of the buffer column (304) is fixedly connected with a sliding block (309), and the outside of the sliding block (309) is fixedly connected with a fixed spring (310).

2. The vibration reducing mechanism of a centrifugal fan according to claim 1, wherein: the fixing mechanism (4) comprises a bottom plate (401), a first groove (402), a second groove (403), an adjusting column (404), a support frame (405) and a support block (406); the improved structure of the sliding block is characterized in that the base plate (401) is connected to the outer portion of the sliding block (309) in a sliding mode, a first groove (402) is formed in the base plate (401), a second groove (403) is formed in the base plate (401), the inner thread of the base plate (401) is connected with an adjusting column (404), one end of the adjusting column (404) is connected with a support frame (405) in a rotating mode, and the outer portion of the support frame (405) is fixedly connected with a support block (406).

3. The vibration reducing mechanism of a centrifugal fan according to claim 1, wherein: the outside of damper (3) is rotated and is connected with rings (5), the outside fixedly connected with of fixed establishment (4) removes wheel (6).

4. The vibration reducing mechanism of a centrifugal fan according to claim 1, wherein: the external thread of the threaded column (306) is connected with a nut, and the fixing plate (301) is inserted outside the threaded column (306).

5. The vibration reducing mechanism of a centrifugal fan according to claim 1, wherein: guide posts (308) are fixedly connected to four corner edges of the connecting frame (305), and the guide posts (308) are slidably connected to the inner portion of the bottom plate (401) through second grooves (403).

6. The vibration reducing mechanism of a centrifugal fan according to claim 1, wherein: the slider (309) is connected with the inside of the bottom plate (401) through the first groove (402) in a sliding mode, one end of the fixed spring (310) is fixedly connected with the slider (309), and the other end of the fixed spring (310) is fixedly connected with the bottom plate (401).

7. The vibration reducing mechanism of a centrifugal fan according to claim 2, wherein: the adjusting column (404) is in threaded connection with the inside of the base plate (401), a third groove is formed in the strut (405), and one end of the adjusting column (404) is rotatably connected to the inside of the strut (405) through the third groove.