CN217713014U

CN217713014U - Impeller centrifugal fan that stability is high

Info

Publication number: CN217713014U
Application number: CN202221280025.8U
Authority: CN
Inventors: 王乐; 王述锋
Original assignee: Changsha Jiuzhou Qingfeng Environmental Protection Equipment Technology Co ltd
Current assignee: Changsha Jiuzhou Qingfeng Environmental Protection Equipment Technology Co ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-11-01
Anticipated expiration: 2032-05-25

Abstract

The utility model discloses an impeller centrifugal fan that stability is high, including the mounting bracket, set up casing on the mounting bracket, set up in the driving motor of mounting bracket and set up the impeller in the casing, impeller and driving motor link to each other, driving motor passes through the regulating plate and installs on the mounting bracket, the mounting bracket bottom is provided with the base, be provided with damper between base and the mounting bracket, the regulating plate includes fixed block and the sliding block that the slip set up on the mounting bracket of fixed mounting on the mounting bracket, driving motor fixed mounting is on the fixed block, it is provided with the rotation lead screw to run through in the sliding block, rotation lead screw and sliding block screw-thread fit, be provided with the backup pad on the mounting bracket, it sets up between backup pad and fixed block to rotate the lead screw rotation, it is provided with crank and locking mechanism to rotate lead screw one end. The problem of current fan poor stability, vibrations are big in the use, fan life is short is solved.

Description

Impeller centrifugal fan that stability is high

Technical Field

The utility model relates to a fan technical field specifically is a high impeller centrifugal fan of stability.

Background

The centrifugal fan is a machine which increases the gas pressure and discharges the gas by means of the input mechanical energy, and the centrifugal fan is mainly composed of an impeller, a casing, a coupling and a shaft. The impeller is a main work-doing component for generating wind pressure and transmitting energy; the casing is mainly used for introducing gas and discharging gas, and simultaneously converting partial kinetic energy of the gas into pressure energy; the shaft coupling is used for connecting motor and fan, transmission moment. The stability of fan will be improved, mainly through the stability that improves impeller and casing, improve holistic stability then. Patent CN201921971254.2 discloses a high stability impeller, through three pull rod of fixed connection evenly between reel and front shroud, three pull rod is with front shroud and reel lug connection, make the blade, the higher triangle-shaped of stability has been formed between back shroud and the pull rod three, drive back shroud and pull rod by the reel, the back shroud drives the blade again, the pull rod drives the front shroud, the front shroud can interact with the blade, make the pull rod, the front shroud, blade and back shroud can form the more reasonable rigidity whole of atress, thereby the pressure load of each part junction has been reduced, because its pull rod mainly adopts the welded mode to fix on the reel side, its processing is inconvenient, inconvenient maintenance change simultaneously. Patent CN202122699750.0 discloses a fan that stability is high during use, makes the overall stability through fixing the motor, because present fan product poor stability, shakes greatly in the use, makes fan life shorten.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an impeller centrifugal fan that stability is high to solve current fan poor stability, shake problem big, that fan life is short in the use.

In order to solve the technical problems in the prior art, the following technical scheme is provided: the utility model provides an impeller centrifugal fan that stability is high, includes the mounting bracket, set up casing on the mounting bracket, set up in the driving motor of mounting bracket and set up the impeller in the casing, impeller and driving motor link to each other, driving motor passes through the regulating plate and installs on the mounting bracket, the mounting bracket bottom is provided with the base, be provided with damper between base and the mounting bracket, the regulating plate includes fixed block and the sliding block that slides on the mounting bracket of fixed mounting on the mounting bracket and sets up on the mounting bracket, driving motor fixed mounting is on the fixed block, it is provided with the rotation lead screw to run through in the sliding block, rotation lead screw and sliding block screw-thread fit, be provided with the backup pad on the mounting bracket, it rotates and sets up between backup pad and fixed block to rotate the lead screw, it is provided with crank and locking mechanism to rotate lead screw one end.

As a further improvement of the above technical solution:

the damping mechanism comprises an upper support fixed with the mounting rack, a lower support fixed with the base and a damping spring supported between the upper support and the lower support, wherein a limiting groove is formed in the lower support, and a limiting block is arranged on the upper support and is in sliding connection with the limiting groove.

The impeller comprises an upper disc, a lower disc, blades and a pull rod structure, wherein the blades are arranged between the upper disc and the lower disc, the pull rod structure is uniformly arranged between the upper disc and the lower disc, and the pull rod structure comprises a first pull rod assembly, a second pull rod assembly and an adjusting assembly.

First pull rod assembly includes installation department and articulated upper link of installing on last installation department, second pull rod assembly includes installation department and articulated lower link of installing on installation department down, go up installation department fixed mounting on the hanging wall, installation department fixed mounting is on the lower wall down, the adjusting part include with upper link articulated connecting portion with rotate the rotation swivel nut that sets up on the lower link, be provided with the screw rod on the connecting portion, the screw rod with rotate the swivel nut cooperation.

The lower part of the base is provided with a rubber layer.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses an impeller centrifugal fan that stability is high adopts the rotation lead screw to drive the movable block motion through the setting for whole fan can be adjusted balancedly, reduces the vibration when using, is provided with damping device simultaneously and can plays the cushioning effect, improves the impeller, makes the impeller be convenient for adjust, has guaranteed the life of impeller. The problem of current fan poor stability, shake in the use big, fan life is short is solved.

Drawings

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

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

FIG. 3 is a schematic view of the impeller structure of the present invention;

FIG. 4 is a schematic view of the damping mechanism of the present invention;

fig. 5 is a second schematic structural diagram of the damping mechanism of the present invention.

Reference numerals: 1. a mounting frame; 11. a support plate; 2. a housing; 3. a drive motor; 4. an impeller; 41. hanging the plate; 411. an upper mounting portion; 412. an upper pull rod; 42. a bottom wall; 421. a lower mounting portion; 422. a lower pull rod; 43. a blade; 431. a connecting portion; 432. rotating the threaded sleeve; 433. a screw; 44. a pull rod structure; 441. a first tie rod assembly; 442. a second tie rod assembly; 443. an adjustment assembly; 5. an adjusting plate; 51. a fixed block; 52. a slider; 53. rotating the lead screw; 54. a crank; 6. a base; 61. a rubber layer; 7. a damping mechanism; 71. an upper support; 711. a limiting block; 72. a lower support; 721. a limiting groove; 73. a shock absorbing spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "front", "back", "left", "right", "up", "down", etc. are based on the directions or positional relationships shown in the drawings, and are only for convenience of description, but not for indicating or implying that the indicated device or element must have a specific direction, and be constructed and operated in a specific direction, and therefore, the present invention is not to be construed as being limited to the present invention.

As shown in fig. 1 to 5, the impeller centrifugal fan with high stability of this embodiment, including mounting bracket 1, set up casing 2 on mounting bracket 1, set up in driving motor 3 of mounting bracket 1 and set up impeller 4 in casing 2, impeller 4 links to each other with driving motor 3, driving motor 3 installs on mounting bracket 1 through regulating plate 5, mounting bracket 1 bottom is provided with base 6, be provided with damper 7 between base 6 and the mounting bracket 1, regulating plate 5 includes fixed block 51 of fixed mounting on mounting bracket 1 and slides and sets up sliding block 52 on mounting bracket 1, here sliding structure selects to be the slide rail spout, in order to guarantee that sliding block 52 can realize screw drive, driving motor 3 fixed mounting is on fixed block 51, run through being provided with in sliding block 52 and rotate sliding block 53,

rotate lead screw

53 and 52 screw-thread fit, be provided with backup pad 11 on mounting bracket 1, it rotates to rotate lead screw 53 and set up between backup pad 11 and fixed block 51, it is provided with crank 54 and locking mechanism to rotate lead screw 53 one end. The crank 54 is detachably mounted with a motor for driving, not shown in the locking mechanism diagram, by a conventional locking structure.

The damping mechanism 7 comprises an upper support 71 fixed with the mounting rack 1, a lower support 72 fixed with the base 6, and a damping spring 73 supported between the upper support 71 and the lower support 72, wherein a limit groove 721 is arranged in the lower support 72, a limit block 711 is arranged on the upper support 71, and the limit block 711 is slidably connected in the limit groove 721.

The impeller 4 comprises an upper disc 41, a lower disc 42, blades 43 and a pull rod structure 44, wherein the blades 43 are arranged between the upper disc 41 and the lower disc 42, the pull rod structure 44 is uniformly arranged between the upper disc 41 and the lower disc 42, and the pull rod structure 44 comprises a first pull rod assembly 441, a second pull rod assembly 442 and an adjusting assembly 443. The first pull rod assembly 441 comprises an upper mounting portion 411 and an upper pull rod 412 which is hinged to the upper mounting portion 411, the second pull rod assembly 442 comprises a lower mounting portion 421 and a lower pull rod 422 which is hinged to the lower mounting portion 421, the upper mounting portion 411 is fixedly mounted on the upper disc 41, the lower mounting portion 421 is fixedly mounted on the lower disc 42, the adjusting assembly 443 comprises a connecting portion 431 which is hinged to the upper pull rod 412 and a rotating threaded sleeve 432 which is rotatably arranged on the lower pull rod 422, a screw 433 is arranged on the connecting portion 431, and the screw 433 is matched with the rotating threaded sleeve 432. The pull rod structure 44 adopts the upper installation part and the lower installation part which are hinged, angle change can be realized, adjustment is convenient, the whole impeller 4 tends to be stable through adjusting the rotating threaded sleeve 432, and the noise generated in use can be reduced.

The lower part of the base 6 is provided with a rubber layer 61.

The utility model discloses a theory of operation:

during the installation, install damper 7 earlier, specifically upper bracket 71 passes undersetting 72, make stopper 711 set up in spacing groove 721, upper bracket 71 can slide in undersetting 72, with upper bracket 71 fixed mounting in mounting bracket 1 bottom, set up damping spring 73 in undersetting 72, fixed undersetting 72 is on base 6, then install casing 2 on mounting bracket 1, installation regulating plate 5 is on mounting bracket 1, fixed driving motor 3 is on regulating plate 5, it rotates lead screw 53 to rotate crank 54 drive, make sliding block 52 slide, can adjust the balance of whole fan, when making its motion, keep stable state. With base 6 through the bolt fastening at mount table or subaerial, the setting of rubber layer 61 can play certain cushioning effect, and the noise abatement produces.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an impeller centrifugal fan that stability is high, includes mounting bracket (1), sets up casing (2) on mounting bracket (1), sets up in driving motor (3) of mounting bracket (1) and sets up impeller (4) in casing (2), impeller (4) and driving motor (3) link to each other, its characterized in that: driving motor (3) are installed on mounting bracket (1) through regulating plate (5), mounting bracket (1) bottom is provided with base (6), be provided with damper (7) between base (6) and mounting bracket (1), regulating plate (5) set up sliding block (52) on mounting bracket (1) including fixed block (51) of fixed mounting on mounting bracket (1) and slip, driving motor (3) fixed mounting is on fixed block (51), it rotates lead screw (53) to run through being provided with in sliding block (52), rotate lead screw (53) and sliding block (52) screw-thread fit, be provided with backup pad (11) on mounting bracket (1), it rotates and sets up between backup pad (11) and fixed block (51) to rotate lead screw (53), it is provided with crank (54) and locking mechanism to rotate lead screw (53) one end.

2. The impeller centrifugal fan with high stability of claim 1, characterized in that: damper (7) include with upper bracket (71) that mounting bracket (1) is fixed, with lower carriage (72) that base (6) are fixed, support damping spring (73) between upper bracket (71) and lower carriage (72), be provided with spacing groove (721) in lower carriage (72), be provided with stopper (711) on upper bracket (71), stopper (711) sliding connection is in spacing groove (721).

3. The impeller centrifugal fan with high stability of claim 1, characterized in that: the impeller (4) comprises an upper disc (41), a lower disc (42), blades (43) and a pull rod structure (44), wherein the blades (43) are arranged between the upper disc (41) and the lower disc (42), the pull rod structure (44) is uniformly arranged between the upper disc (41) and the lower disc (42), and the pull rod structure (44) comprises a first pull rod assembly (441), a second pull rod assembly (442) and an adjusting assembly (443).

4. The impeller centrifugal fan with high stability of claim 3, wherein: first pull rod subassembly (441) includes installation department (411) and articulates last pull rod (412) of installing on last installation department (411), second pull rod subassembly (442) includes lower installation department (421) and articulates lower pull rod (422) of installing on lower installation department (421), it installs on hanging dish (41) to go up installation department (411) fixed mounting, installation department (421) fixed mounting is on lower dish (42) down, adjusting part (443) include with last pull rod (412) articulated connecting portion (431) and rotate and set up rotation swivel nut (432) on lower pull rod (422), be provided with screw rod (433) on connecting portion (431), screw rod (433) with rotate swivel nut (432) cooperation.

5. The impeller centrifugal fan with high stability of claim 3, wherein: the lower part of the base (6) is provided with a rubber layer (61).