CN218542668U

CN218542668U - Damping device of centrifugal fan

Info

Publication number: CN218542668U
Application number: CN202223253250.5U
Authority: CN
Inventors: 晋钰锋
Original assignee: Shanxi Jin Blower Co ltd
Current assignee: Shanxi Jin Blower Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-02-28
Anticipated expiration: 2032-12-06

Abstract

The utility model relates to a centrifugal fan technical field and discloses a centrifugal fan damping device, including baffle, mounting bracket and bottom plate, two baffles all set up in the mounting bracket front and back both sides, the inside fixedly connected with adjustment mechanism of bottom plate, fixedly connected with protection machanism between mounting bracket and the baffle, mounting bracket bottom fixedly connected with installation piece; protection machanism includes first buffering subassembly and second buffering subassembly, and first buffering subassembly sets up in the mounting bracket bottom, and the second buffering subassembly sets up between mounting bracket and baffle, and first buffering subassembly includes the connecting rod, and connecting rod fixed connection has the slider between two installation pieces, and connecting rod sliding surface is connected with the slider, fixedly connected with spring between two sliders, and the spring is inside cup joints with the connecting rod surface. This centrifugal fan damping device through setting up protection machanism, under protection machanism operation, can receive when external striking at the baffle, can make to reduce its impact at the bounce-back effort of telescopic cylinder.

Description

Damping device of centrifugal fan

Technical Field

The utility model relates to a centrifugal fan technical field specifically is a centrifugal fan damping device.

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.

Like a centrifugal fan damping device of patent No. CN213064089U, including the framework, two first spouts have been seted up along its length direction in the bottom of framework, the inside slidable mounting of first spout has first slider, two one side that first slider is close to each other all articulates there is the dwang, two one side that the dwang is close to each other all articulates there is the connecting rod, two first springs of bottom fixedly connected with of connecting rod.

In view of the above description, the inventors consider that the following problems exist:

above-mentioned utility model is in the use, because centrifugal fan is installing the back, the framework highly fixes, is difficult to directly operate when needs are adjusted the centrifugal fan's after the installation height, relies on the motor to provide at centrifugal fan's power simultaneously, and the motor during operation can produce certain vibrations, and in addition, also can produce certain vibrations during the inside impeller of centrifugal fan rotates, at this moment just needs to design a buffer to centrifugal fan.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a centrifugal fan damping device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a damping device of a centrifugal fan comprises two baffles, a mounting frame and a bottom plate, wherein the two baffles are arranged on the front side and the rear side of the mounting frame, an adjusting mechanism is fixedly connected inside the bottom plate, a protection mechanism is fixedly connected between the mounting frame and the baffles, and a mounting block is fixedly connected to the bottom of the mounting frame;

the protection mechanism comprises a first buffer component and a second buffer component, the first buffer component is arranged at the bottom of the mounting frame, and the second buffer component is arranged between the mounting frame and the baffle;

first buffering subassembly includes the connecting rod, connecting rod fixed connection is between two installation pieces, connecting rod sliding surface is connected with the slider, slider quantity is two, two fixedly connected with spring between the slider, the inside and connecting rod surface of spring cup joints, two slider opposite side fixedly connected with loop bar, the loop bar sets up in the connecting rod surface, loop bar opposite side fixedly connected with stopper, the stopper sets up in the installation piece outside.

Preferably, a long hole groove is formed in the mounting block, and the surface of the loop bar penetrates through the long hole groove formed in the mounting block.

Preferably, the second buffering subassembly is including changeing the board, it articulates between installation piece and baffle to change the board, the inside rectangular channel that has seted up of commentaries on classics board, the spring is close to that baffle one side articulates there is a telescopic cylinder, telescopic cylinder opposite side fixedly connected with fixed block, telescopic cylinder surface and commentaries on classics inboard sliding connection can slide telescopic cylinder restriction in the rectangular channel inside under the fixed block.

Preferably, the fixed block is arranged on the other side of the rotating plate, and the outer diameter of the fixed block is larger than the diameter of the opening of the rectangular groove.

Preferably, the adjusting mechanism comprises a square groove, the square groove is formed in the bottom plate, the top of the square groove is arranged to be an opening, the right end of the front face of the bottom plate is fixedly connected with a motor, the back of the motor is fixedly connected with a rotating shaft, the surface of the rotating shaft is fixedly connected with a first bevel gear, the bottom of the first bevel gear is meshed with a second bevel gear, a two-way threaded rod is fixedly connected with the center of the second bevel gear, the surface of the two-way threaded rod is rotatably connected with the inside of the square groove, the surfaces of the left side and the right side of the two-way threaded rod are in threaded connection with a connecting seat, sliding grooves are formed in the front side and the back side of the inner wall of the square groove respectively, the connecting seat is close to one side of the sliding groove and is in sliding connection with the inside of the sliding groove, the top of the connecting seat and the bottom of the mounting frame are hinged to a rotating rod, and the centrifugal fan mounted on the mounting frame can be subjected to height adjustment under the operation of the adjusting mechanism.

Preferably, the number of the first bevel gears and the number of the second bevel gears are two, the first bevel gears and the second bevel gears are arranged on the front side surface and the rear side surface of the rotating shaft, and the rotating shaft can drive the bidirectional threaded rod to rotate under the meshing connection of the first bevel gears and the second bevel gears.

Preferably, two-way threaded rod quantity is two-way threaded rod left and right sides surface all has two same specification opposite direction's helix, when two-way threaded rod rotated, can make two connecting seats remove to relative one side on two-way threaded rod.

Compared with the prior art, the utility model provides a centrifugal fan damping device possesses following beneficial effect:

1. this centrifugal fan damping device through setting up protection machanism, under protection machanism operation, can receive when external striking at the baffle, can make to reduce its impact at the bounce-back effort of telescopic cylinder.

2. This centrifugal fan damping device through setting up adjustment mechanism, under adjustment mechanism moves, can carry out the altitude mixture control with centrifugal fan after installing on the mounting bracket, can be to the centrifugal fan after the installation.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor:

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

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

FIG. 3 is a schematic view of a mounting bracket, a mounting block and a first cushion assembly;

FIG. 4 is a schematic view of a structure of a baffle, a mounting bracket and a second cushion assembly;

fig. 5 is a schematic view of the structure of the bottom plate and the adjusting mechanism.

In the figure: 1. a baffle plate; 2. a mounting frame; 3. a base plate; 4. an adjustment mechanism; 41. a bidirectional threaded rod; 42. a connecting seat; 43. a slider; 44. a chute; 45. a square groove; 46. a first bevel gear; 47. a second bevel gear; 48. a rotating shaft; 49. a motor; 401. a rotating rod; 5. a protection mechanism; 51. a first buffer assembly; 511. a limiting block; 512. a loop bar; 513. a connecting rod; 514. a spring; 515. a slider; 52. a second buffer assembly; 521. a fixed block; 522. a rectangular groove; 523. rotating the plate; 524. a telescopic cylinder; 6. and (7) installing the block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The utility model provides a following technical scheme:

example one

With reference to fig. 2 to 4, the damping device for the centrifugal fan comprises baffle plates 1, an installation frame 2 and a bottom plate 3, wherein the number of the baffle plates 1 is two, the two baffle plates 1 are arranged on the front side and the rear side of the installation frame 2, an adjusting mechanism 4 is fixedly connected inside the bottom plate 3, a protection mechanism 5 is fixedly connected between the installation frame 2 and the baffle plates 1, and an installation block 6 is fixedly connected to the bottom of the installation frame 2;

protection machanism 5 includes first buffer unit 51 and second buffer unit 52, first buffer unit 51 sets up in mounting bracket 2 bottom, second buffer unit 52 sets up between mounting bracket 2 and baffle 1, first buffer unit 51 includes connecting rod 513, connecting rod 513 fixed connection is between two installation pieces 6, connecting rod 513 sliding surface connection has slider 515, slider 515 quantity is two, fixedly connected with spring 514 between two slider 515, the inside and connecting rod 513 surface of spring 514 cup joints, two slider 515 opposite side fixedly connected with loop bar 512, loop bar 512 sets up in connecting rod 513 surface, loop bar 512 opposite side fixedly connected with stopper 511, stopper 511 sets up in the installation piece 6 outside, the inside trompil groove of having seted up of installation piece 6, loop bar 512 surface runs through the inside trompil groove of seting up in installation piece 6, second buffer unit 52 includes commentaries on classics board 523, commentaries on classics board 523 articulates between installation piece 6 and baffle 1, rectangular channel 522 has been seted up to commentaries on classics board 523 inside, spring 514 is close to articulated flexible section of a 524 that has flexible section of thick bamboo 524 on one side of baffle 524, flexible section of thick bamboo 524 fixed connection has the fixed block 521, flexible section of thick bamboo 524 surface and the inside sliding connection of commentaries on classics board 523.

Further, the fixed block 521 is arranged on the other side of the rotating plate 523, the outer diameter of the fixed block 521 is larger than the opening diameter of the rectangular groove 522, and by arranging the protection mechanism 5, when the baffle 1 is impacted by the outside world under the operation of the protection mechanism 5, the impact force can be reduced by the rebound action force of the telescopic cylinder 524.

Example two

Referring to fig. 1-5, and on the basis of the first embodiment, the adjusting mechanism 4 further includes a square groove 45, the square groove 45 is disposed inside the bottom plate 3, the top of the square groove 45 is set to be an opening, the right end of the front surface of the bottom plate 3 is fixedly connected with a motor 49, the back surface of the motor 49 is fixedly connected with a rotating shaft 48, the surface of the rotating shaft 48 is fixedly connected with a first bevel gear 46, the bottom of the first bevel gear 46 is engaged with a second bevel gear 47, the axis of the second bevel gear 47 is fixedly connected with a bidirectional threaded rod 41, the surface of the bidirectional threaded rod 41 is rotatably connected with the inside of the square groove 45, the left side surface and the right side surface of the bidirectional threaded rod 41 are both connected with a connecting seat 42 through threads, sliding grooves 44 are disposed on the front and back sides of the inner wall of the square groove 45, the connecting seat 42 is close to one side of the sliding groove 44 and fixedly connected with a sliding block 43, the surface of the sliding block 43 is slidably connected with the inside of the sliding groove 44, the top of the connecting seat 42 and the bottom of the mounting frame 2 are both hinged with a rotating rod 401, the first bevel gear 46 and the second bevel gear 47, and the two first bevel gears 46 are disposed on the front and back side surfaces of the rotating shaft 48.

Further, two-way threaded rod 41 quantity is two, and two-way threaded rod 41 left and right sides surfaces all have two same specification opposite direction's thread line, through setting up adjustment mechanism 4, under adjustment mechanism 4 operation, can be with centrifugal fan after installing on mounting bracket 2, can carry out altitude mixture control to the centrifugal fan after the installation.

In the actual operation process, when the device is used, a centrifugal fan is installed at the top of the installation frame 2, and at this time, when the height of the centrifugal fan needs to be adjusted, the motor 49 is started, the motor 49 drives the rotating shaft 48 to rotate, the rotating shaft 48 drives the two first bevel gears 46 to rotate, because the installation block 6 and the two second bevel gears 47 are meshed and connected, the two second bevel gears 47 drive the two bidirectional threaded rods 41 to rotate in the same direction, at this time, the two connecting seats 42 move to the opposite side on the bidirectional threaded rods 41, at this time, when the installation frame 2 is hinged with the rotating rod 401, the rotating rod 401 is hinged with the installation block 6, and at this time, the installation block 6 drives the installation frame 2 to adjust the height;

when baffle 1 receives external striking, when baffle 1 drives commentaries on classics board 523 articulated at this moment, commentaries on classics board 523 and installation piece 6 articulated condition, at this moment telescopic cylinder 524 when changeing board 523 and sliding, telescopic cylinder 524 can be driven and contract, between telescopic cylinder 524 and slider 515, slider 515 is driven at this moment and slides on connecting rod 513 surface, and spring 514 is driven simultaneously and is stretched, under the bounce-back effort of spring 514, can make its striking power that receives go forward and further reduce.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. The utility model provides a centrifugal fan damping device, includes baffle (1), mounting bracket (2) and bottom plate (3), its characterized in that: the number of the baffles (1) is two, the two baffles (1) are arranged on the front side and the rear side of the mounting frame (2), the adjusting mechanism (4) is fixedly connected inside the bottom plate (3), the protection mechanism (5) is fixedly connected between the mounting frame (2) and the baffles (1), and the mounting block (6) is fixedly connected to the bottom of the mounting frame (2);

the protection mechanism (5) comprises a first buffer component (51) and a second buffer component (52), the first buffer component (51) is arranged at the bottom of the mounting frame (2), and the second buffer component (52) is arranged between the mounting frame (2) and the baffle (1);

first buffering subassembly (51) is including connecting rod (513), connecting rod (513) fixed connection is between two installation pieces (6), connecting rod (513) surface sliding connection has slider (515), slider (515) quantity is two fixedly connected with spring (514) between slider (515), spring (514) inside and connecting rod (513) surface cup joint, two slider (515) opposite side fixedly connected with loop bar (512), loop bar (512) set up in connecting rod (513) surface, loop bar (512) opposite side fixedly connected with stopper (511), stopper (511) set up in the installation piece (6) outside.

2. The centrifugal fan damping device according to claim 1, wherein: the inner part of the mounting block (6) is provided with a long hole groove, and the surface of the loop bar (512) penetrates through the long hole groove arranged in the mounting block (6).

3. The centrifugal fan damping device according to claim 1, characterized in that: second buffer unit (52) are including changeing board (523), it articulates between installation piece (6) and baffle (1) to change board (523), rectangular channel (522) have been seted up to commentaries on classics board (523) inside, spring (514) are close to baffle (1) one side and articulate and have a flexible section of thick bamboo (524), flexible section of thick bamboo (524) opposite side fixedly connected with fixed block (521), flexible section of thick bamboo (524) surface and commentaries on classics board (523) inside sliding connection.

4. A centrifugal fan damping device according to claim 3, characterised in that: the fixed block (521) is arranged on the other side of the rotating plate (523), and the outer diameter of the fixed block (521) is larger than the opening diameter of the rectangular groove (522).

5. The centrifugal fan damping device according to claim 1, characterized in that: adjustment mechanism (4) are including square groove (45), square groove (45) are seted up inside bottom plate (3), square groove (45) top sets up to the opening, bottom plate (3) just openly right-hand member fixedly connected with motor (49), motor (49) back fixedly connected with pivot (48), pivot (48) fixed surface is connected with first bevel gear (46), first bevel gear (46) bottom meshing is connected with second bevel gear (47), fixedly connected with two-way threaded rod (41) of second bevel gear (47) axle center department, two-way threaded rod (41) surface and square groove (45) internal rotation are connected, the equal threaded connection in both sides surface has connecting seat (42) about two-way threaded rod (41), spout (44) have all been seted up to square groove (45) inner wall front and back both sides, connecting seat (42) are close to spout (44) one side fixedly connected with sliding block (43), sliding block (43) surface and sliding block (44) internal sliding connection, connecting seat (42) top and mounting bracket (2) bottom all articulate there is bull stick (401).

6. The centrifugal fan damping device according to claim 5, wherein: the number of the first bevel gears (46) and the number of the second bevel gears (47) are two, and the two first bevel gears (46) and the two second bevel gears (47) are arranged on the front side surface and the rear side surface of the rotating shaft (48).

7. The centrifugal fan damping device according to claim 5, wherein: the quantity of the two-way threaded rods (41) is two, and the surfaces of the left side and the right side of each two-way threaded rod (41) are provided with two thread lines with the same specification and opposite directions.