CN215566932U

CN215566932U - Damping base of centrifugal fan

Info

Publication number: CN215566932U
Application number: CN202122205199.XU
Authority: CN
Inventors: 周卫
Original assignee: Foshan Zhujiang Fan Co ltd
Current assignee: Foshan Zhujiang Fan Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-01-18
Anticipated expiration: 2031-09-13

Abstract

The utility model relates to a damping base of a centrifugal fan, which belongs to the technical field of centrifugal fans and comprises a bottom plate, wherein a damping block is fixedly connected to the upper surface of the bottom plate, a damping plate is arranged at the top end of the damping block, a limiting plate is fixedly connected to the upper surface of the damping block, damping springs are fixedly connected to four corners of the upper surface of the limiting plate, the other ends of the four damping springs are fixedly connected to the damping plate, a damping column is arranged in the middle of each damping spring, and a limiting block is fixedly connected to the bottom end of each damping column. Install shock attenuation board, snubber block, limiting plate, damping spring and the shock attenuation post on the bottom plate top through the design and be convenient for install certain cushioning effect on the device back to centrifugal fan, place the device and produce when placing and rock, centrifugal fan can not produce great noise when the operation simultaneously, offsets the produced vibrations of motor through damping spring's elastic force to reach absorbing purpose, brought fine development prospect.

Description

Damping base of centrifugal fan

Technical Field

The utility model relates to the technical field of centrifugal fans, in particular to a damping base 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; wind tunnel wind source and air cushion boat inflation and propulsion.

Current centrifugal fan is in the use, owing to utilize the motor to drive the impeller and discharge gas, can produce certain vibrations when the motor uses to very unstable when leading to centrifugal fan to place can produce the problem of great noise simultaneously, we provide a centrifugal fan's shock attenuation base for this reason.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a damping base of a centrifugal fan, which solves the problems that the centrifugal fan is unstable when placed and generates large noise due to certain vibration generated when a motor drives an impeller to discharge gas in the use process of the existing centrifugal fan.

The technical scheme of the utility model is as follows:

the utility model provides a centrifugal fan's shock attenuation base, includes the bottom plate, the last fixed surface of bottom plate is connected with the snubber block, the top of snubber block is provided with the shock attenuation board, the last fixed surface of snubber block is connected with the limiting plate, the equal fixedly connected with damping spring in upper surface four corners of limiting plate, four damping spring's other end fixed connection is in the shock attenuation board, damping spring's centre is provided with the shock attenuation post, the bottom fixedly connected with stopper of shock attenuation post, the activity groove has all been seted up in the inside four corners of snubber block, the bottom of shock attenuation post extends to the activity inslot.

The working principle of the technical scheme is as follows:

after centrifugal fan installs on the device, when centrifugal fan started, the last motor of centrifugal fan can produce the vibration, can drive the shock attenuation board and reciprocate, thereby the shock attenuation board drives four shock attenuation posts and stopper and reciprocates, compress four damping spring simultaneously, then the damping spring after the compression has certain elastic potential energy, this elastic potential energy can offset partial vibration, thereby play effectual cushioning effect, the shock attenuation post of design prevents that damping spring from taking place the distortion when compressing.

In a further technical scheme, the damping plate is of a semi-hollow structure, and the bottom end of the inner wall of the damping plate is fixedly connected with a limiting frame.

The spacing frame of design prevents that shock attenuation board and snubber block from taking place the separation under the effect of limiting plate.

In a further technical scheme, the equal fixedly connected with fixed block in upper surface four corners of shock attenuation board, one side of fixed block is provided with the movable block, the inside of fixed block is provided with the bearing, the inner wall fixedly connected with activity post of bearing, the top of bearing is provided with the shift ring, the surface of activity post is provided with reset spring, reset spring's one end fixed connection and shift ring, reset spring's other end fixed connection and fixed block, the top fixedly connected with connecting block of activity post, the other end fixed connection of connecting block is in the movable block, the bolt has been run through in the centre of movable block, the bottom of movable block is provided with the nut, the nut is installed in the inside of shock attenuation board.

When needs installation centrifugal fan, at first, rotate four movable blocks in proper order, the movable block drives the bolt, connecting block and activity post rotate, then place centrifugal fan on the shock attenuation board, place the completion after upwards stimulate the movable block and rotate back, can drive the bolt when upwards stimulating the movable block, the connecting block, activity post and bearing upwards remove, thereby make reset spring compress, reset spring this moment has certain elastic potential energy, rotate back, loosen the movable block, then can drive the movable block under reset spring's effect and compress tightly the mounting panel on the centrifugal fan, afterwards, the bolt rotates, make the bolt run through the mounting hole on the centrifugal fan, and slow running through the nut, thereby through bolt and nut from the firm installation on the shock attenuation board of centrifugal fan.

In a further technical scheme, the lower surface of the moving ring is fixedly connected with a connecting ring, and the moving ring is fixedly connected with the outer wall of the bearing through the connecting ring.

The moving ring and the outer wall of the bearing are fixed through the designed connecting ring, so that the moving column cannot drive the moving ring and the return spring to rotate when rotating.

In a further technical scheme, the equal fixedly connected with slider in outer wall both sides of bearing, the fixed block is half hollow structure, circular hole has been seted up to the upper surface of fixed block, the spout has all been seted up to the inner wall both sides of fixed block, the one end of slider extends to in the spout.

The fixed block of design is spare parts such as easy to assemble reset spring, activity post, bearing and shifting ring for half hollow structure, and the spout and the slider of seting up can not drive the bearing rotation for the activity post when rotating to reset spring can not take place the distortion.

In a further technical scheme, a through hole is formed in the middle of the movable block, threads are arranged on the inner wall of the movable block, and the threads are matched with the threads on the outer surface of the bolt.

The through hole and the thread are arranged so that the bolt can move downwards when rotating and can penetrate through the mounting hole and the nut on the centrifugal fan.

The utility model has the beneficial effects that:

1. the damping plate, the damping block, the limiting plate, the damping spring and the damping column which are arranged at the top end of the bottom plate are designed, so that a certain damping effect can be achieved after the centrifugal fan is arranged on the device, the device can shake when placed, meanwhile, the centrifugal fan can not generate large noise when in operation, and the vibration generated by the motor can be offset through the elastic acting force of the damping spring, so that the damping purpose is achieved, and a good development prospect is brought;

2. through installing fixed block, movable block, bolt, shift ring and the bearing in the damping plate upper surface four corners of design and be convenient for centrifugal fan and install on the device, utilize the bolt to run through the mounting hole on the centrifugal fan, then screw up between messenger's bolt and the nut to fixed column centrifugal fan connects the fastening through this mode firm, can not produce not hard up, and it is convenient to install simultaneously, has saved a large amount of installation time.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a damper plate according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a shock absorbing plate according to an embodiment of the present invention;

fig. 4 is an enlarged schematic structural diagram at a in fig. 1 according to an embodiment of the present invention.

Description of reference numerals:

1. a damper plate; 2. a damper block; 3. a base plate; 4. a fixed block; 5. a limiting plate; 6. a limiting frame; 7. a damping spring; 8. a shock-absorbing post; 9. a movable groove; 10. a limiting block; 11. a movable block; 12. a bolt; 13. connecting blocks; 14. a movable post; 15. a slider; 16. a moving ring; 17. a bearing; 18. a nut; 19. a connecting ring; 20. a return spring.

Detailed Description

The embodiments of the present invention will be further described with reference to the accompanying drawings.

Example (b):

as shown in fig. 1-4, a damping base of centrifugal fan, comprising a base plate 3, the last fixed surface of bottom plate 3 is connected with snubber block 2, the top of snubber block 2 is provided with snubber plate 1, the last fixed surface of snubber block 2 is connected with limiting plate 5, the equal fixedly connected with damping spring 7 in upper surface four corners of limiting plate 5, the other end fixed connection of four damping spring 7 is in snubber plate 1, damping spring 7's centre is provided with shock absorber 8, shock absorber 8's bottom fixedly connected with stopper 10, movable groove 9 has all been seted up in snubber block 2's inside four corners, shock absorber 8's bottom extends to in the movable groove 9.

The working principle of the technical scheme is as follows:

after centrifugal fan installs on the device, when centrifugal fan started, the last motor of centrifugal fan can produce the vibration, can drive damping plate 1 and reciprocate, thereby damping plate 1 drives four shock absorber posts 8 and stopper 10 and reciprocates, compress four damping spring 7 simultaneously, then damping spring 7 after the compression has certain elastic potential energy, this elastic potential energy can offset partial vibration, thereby play effectual cushioning effect, the shock absorber post 8 of design prevents that damping spring 7 from taking place the distortion when the compression.

In another embodiment, as shown in fig. 2, the damping plate 1 is a semi-hollow structure, and the bottom end of the inner wall of the damping plate 1 is fixedly connected with a limiting frame 6.

The designed limiting frame 6 prevents the damping plate 1 and the damping block 2 from being separated under the action of the limiting plate 5.

In another embodiment, as shown in fig. 4, four corners of the upper surface of the damping plate 1 are fixedly connected with fixed blocks 4, one side of each fixed block 4 is provided with a movable block 11, a bearing 17 is arranged inside each fixed block 4, an inner wall of each bearing 17 is fixedly connected with a movable column 14, a top end of each bearing 17 is provided with a movable ring 16, an outer surface of each movable column 14 is provided with a return spring 20, one end of each return spring 20 is fixedly connected with each movable ring 16, the other end of each return spring 20 is fixedly connected with each fixed block 4, a top end of each movable column 14 is fixedly connected with a connecting block 13, the other end of each connecting block 13 is fixedly connected with each movable block 11, a bolt 12 penetrates through the middle of each movable block 11, a nut 18 is arranged at the bottom end of each movable block 11, and each nut 18 is installed inside the damping plate 1.

When needing to install centrifugal fan, at first, rotate four movable blocks 11 in proper order, movable block 11 drives bolt 12, connecting block 13 and activity post 14 rotate, then place centrifugal fan on damper plate 1, place the back and upwards stimulate movable block 11 and rotate back, can drive bolt 12 when upwards stimulating movable block 11, connecting block 13, activity post 14 and bearing 17 upwards remove, thereby make reset spring 20 compress, reset spring 20 at this moment has certain elastic potential energy, rotate back, loosen movable block 11, then can drive movable block 11 under reset spring 20's effect and compress tightly the mounting panel on the centrifugal fan, afterwards, bolt 12 rotates, make bolt 12 run through the mounting hole on the centrifugal fan, and slowly run through nut 18, thereby through bolt 12 and nut 18 with installing on damper plate 1 that centrifugal fan is firm.

In another embodiment, as shown in fig. 4, a connection ring 19 is fixedly connected to the lower surface of the moving ring 16, and the moving ring 16 is fixedly connected to the outer wall of the bearing 17 through the connection ring 19.

The moving ring 16 and the outer wall of the bearing 17 are fixed by the designed connecting ring 19, so that the moving column 14 does not rotate the moving ring 16 and the return spring 20.

In another embodiment, as shown in fig. 4, the sliding blocks 15 are fixedly connected to both sides of the outer wall of the bearing 17, the fixed block 4 is a semi-hollow structure, the upper surface of the fixed block 4 is provided with a circular hole, both sides of the inner wall of the fixed block 4 are provided with sliding grooves, and one end of each sliding block 15 extends into each sliding groove.

The designed fixed block 4 is of a semi-hollow structure, so that parts such as a return spring 20, a movable column 14, a bearing 17, a moving ring 16 and the like can be conveniently installed, and the sliding groove and the sliding block 15 are formed, so that the movable column 14 cannot drive the bearing 17 to rotate when rotating, and the return spring 20 cannot be twisted.

In another embodiment, as shown in fig. 4, a through hole is opened in the middle of the movable block 11, and the inner wall of the movable block 11 is provided with threads which match with the threads on the outer surface of the bolt 12.

The through holes and threads are provided so that the bolts 12 can move downwardly when turned and can pass through mounting holes and nuts 18 on the centrifugal fan.

The above examples only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. The utility model provides a centrifugal fan's vibration damper base, includes bottom plate (3), its characterized in that: the upper surface fixedly connected with snubber block (2) of bottom plate (3), the top of snubber block (2) is provided with damper plate (1), the upper surface fixedly connected with limiting plate (5) of snubber block (2), the equal fixedly connected with damping spring (7) in upper surface four corners of limiting plate (5), four the other end fixed connection of damping spring (7) is in damper plate (1), the centre of damping spring (7) is provided with shock attenuation post (8), the bottom fixedly connected with stopper (10) of shock attenuation post (8), movable groove (9) have all been seted up in the inside four corners of snubber block (2), the bottom of shock attenuation post (8) extends to in movable groove (9).

2. The vibration damping base of the centrifugal fan according to claim 1, characterized in that: the damping plate (1) is of a semi-hollow structure, and the bottom end of the inner wall of the damping plate (1) is fixedly connected with a limiting frame (6).

3. The vibration damping base of the centrifugal fan according to claim 1, characterized in that: the damping plate is characterized in that fixed blocks (4) are fixedly connected to four corners of the upper surface of the damping plate (1), a movable block (11) is arranged on one side of each fixed block (4), a bearing (17) is arranged inside each fixed block (4), a movable column (14) is fixedly connected to the inner wall of each bearing (17), a movable ring (16) is arranged on the top end of each bearing (17), a reset spring (20) is arranged on the outer surface of each movable column (14), one end of each reset spring (20) is fixedly connected with each movable ring (16), the other end of each reset spring (20) is fixedly connected with each fixed block (4), a connecting block (13) is fixedly connected to the top end of each movable column (14), the other end of each connecting block (13) is fixedly connected to each movable block (11), a bolt (12) penetrates through the middle of each movable block (11), and a nut (18) is arranged at the bottom end of each movable block (11), the nut (18) is arranged inside the damping plate (1).

4. The vibration damping base of the centrifugal fan according to claim 3, wherein: the lower surface of the moving ring (16) is fixedly connected with a connecting ring (19), and the moving ring (16) is fixedly connected with the outer wall of the bearing (17) through the connecting ring (19).

5. The vibration damping base of the centrifugal fan according to claim 3, wherein: the equal fixedly connected with slider (15) in outer wall both sides of bearing (17), fixed block (4) are half hollow structure, circular hole has been seted up to the upper surface of fixed block (4), the spout has all been seted up to the inner wall both sides of fixed block (4), the one end of slider (15) extends to in the spout.

6. The vibration damping base of the centrifugal fan according to claim 3, wherein: the middle of the movable block (11) is provided with a through hole, the inner wall of the movable block (11) is provided with threads, and the threads are matched with the threads on the outer surface of the bolt (12).