CN220687665U

CN220687665U - Novel cabinet type centrifugal fan

Info

Publication number: CN220687665U
Application number: CN202322464048.5U
Authority: CN
Inventors: 郭亚旭
Original assignee: Henan Saibo Hvac Equipment Co ltd
Current assignee: Henan Saibo Hvac Equipment Co ltd
Priority date: 2023-09-12
Filing date: 2023-09-12
Publication date: 2024-03-29
Anticipated expiration: 2033-09-12

Abstract

The utility model discloses a novel cabinet type centrifugal fan, which comprises a fan shell, wherein a fan impeller is rotatably arranged in the fan shell, a driving mechanism for driving the fan impeller to rotate is arranged on the fan shell, the fan impeller comprises a sleeve and two connecting rings which are connected through a connecting rod.

Description

Novel cabinet type centrifugal fan

Technical Field

The utility model relates to the technical field of centrifugal fans, in particular to a novel cabinet type centrifugal fan.

Background

A centrifugal fan is a fluid machine that converts mechanical energy into gas pressure energy and is used to transport gas. The centrifugal fan consists of a shell and a centrifugal impeller, has the characteristics of large air quantity, stable performance, stable rotation and the like, and is widely applied to ventilation, dust discharge and cooling of chemical industry, metallurgy, electric power, factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and induced draft of boilers and industrial kilns; cooling and ventilation in air-conditioning devices and household appliances; drying and selecting grains, etc. The centrifugal fan relies on the mechanical energy of input, improves gas pressure and discharges gas.

Through retrieving, the patent of application number 201711058870.4 discloses a novel cabinet centrifugal fan, the on-line screen storage device comprises a base, the upper end of base is equipped with the cabinet body, the bottom of the cabinet body is equipped with the pneumatic cylinder, all be equipped with slide mechanism on the left and right sides both ends lateral wall of the cabinet body, the internal backup pad that is equipped with of cabinet, both ends lateral wall is connected with two slide mechanism respectively about the backup pad, the lower extreme of backup pad is connected with the upper end of pneumatic cylinder, the upper end of backup pad is equipped with the recess, the bottom of recess is equipped with a plurality of elastic components, the upper end of elastic component is equipped with the connecting plate, the upper end of connecting plate is equipped with centrifugal fan body, all be equipped with the fastener about the connecting plate on both ends lateral wall about, be equipped with two cavities in the backup pad, and two cavities set up respectively in the left and right sides connecting plate of recess, be equipped with control structure in the cavity, be equipped with the passageway that is linked together with the recess on the inner wall of cavity. The advantages are that: the utility model is not only convenient for overhauling and replacing the centrifugal fan, but also can effectively improve the flexibility of the centrifugal fan.

Above-mentioned scheme and current impeller mounting structure of some centrifugal fan are complicated, and every blade on the impeller is all fixed by two at least bolt locks, needs a large amount of bolts to fix the blade promptly, has not only increased the manufacturing cost of equipment, has still reduced the installation effectiveness of impeller, consequently we need propose a novel cabinet centrifugal fan.

Disclosure of Invention

The utility model aims to provide a novel cabinet type centrifugal fan, a plurality of impeller blades are annularly and equidistantly arranged between two connecting rings in a plugging and fixing mode through the design of a fan impeller, the original complicated installation mode of fixing each impeller blade by adopting a plurality of bolts is replaced, a plugboard at the end part of each impeller blade is firstly inserted into a slot, the impeller blade is initially limited through two clamping plates, and then a positioning ring is sleeved on the connecting ring, so that the plugboard is abutted in an abutting groove, the impeller blade can be fixed, and then the connecting ring and the positioning ring are locked, thereby not only improving the installation efficiency of the impeller blade, but also reducing the production cost of the centrifugal fan, and solving the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the novel cabinet type centrifugal fan comprises a fan shell, wherein a fan impeller is rotatably arranged in the fan shell, a driving mechanism for driving the fan impeller to rotate is arranged on the fan shell, the fan impeller comprises a sleeve and two connecting rings, the sleeve is connected with the two connecting rings through a connecting rod, and a plurality of impeller blades which are arranged at equal angles are fixedly inserted between the two connecting rings;

a slot is formed in one side of the connecting ring, the end part of the connecting ring is connected with a plugboard, clamping plates capable of deforming are arranged on two inner walls of the slot, and the two clamping plates are abutted against the side parts of the plugboard; the lateral part of go-between is fixed with the holding ring through the bolt, the conflict groove that the slope set up is seted up to the inner wall of holding ring, the top of picture peg is contradicted on the inclined plane in conflict groove.

Preferably, the rubber block is installed at the bottom of the slot, the notch is formed in the surface of the slot, the width of the notch is not larger than the thickness of the inserting plate, and the inserting plate is inserted into the notch.

Preferably, a threaded blind hole is formed in the other side of the connecting ring, a through hole is formed in the positioning ring, and one end of the bolt penetrates through the through hole to be in threaded connection with the inside of the threaded blind hole.

Preferably, the inside of fan shell rotates and installs the pivot, just the lateral wall that the fan shell was passed to the one end of pivot is located the outside of fan shell, the sleeve cover is established and is fixed on the outer wall of pivot.

Preferably, the driving mechanism comprises a motor arranged on the fan shell, the output shaft of the motor and one end of the rotating shaft are both sleeved with belt pulleys, and the two belt pulleys are connected through belt transmission.

Preferably, an air inlet is formed in one end of the fan shell, an air outlet is formed in the bottom of the fan shell, and the air outlet is located at the lower end of the fan impeller.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, through the design of the fan impeller, a plurality of impeller blades are annularly and equidistantly arranged between two connecting rings in a plugging and fixing mode, the original complicated installation mode of fixing each impeller blade by adopting a plurality of bolts is replaced, the inserting plate at the end part of each impeller blade is firstly inserted into the slot, the impeller blade is initially limited by the two clamping plates, and then the connecting rings are sleeved with the positioning rings, so that the inserting plate is abutted in the abutting grooves, the impeller blade can be fixed, and then the connecting rings and the positioning rings are locked, thereby not only improving the installation efficiency of the impeller blade, but also reducing the production cost of the centrifugal fan.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a fan wheel according to the present utility model;

FIG. 3 is an exploded view of a fan wheel of the present utility model;

fig. 4 is an enlarged view of the portion a of fig. 3 according to the present utility model.

In the figure: 1. a blower housing; 2. a driving mechanism; 3. a fan impeller; 31. a connecting ring; 311. a slot; 312. a clamping plate; 313. a rubber block; 314. a notch; 32. impeller blades; 321. inserting plate; 33. a positioning ring; 331. a through hole; 332. a collision groove; 34. a sleeve; 35. a connecting rod; 36. a rotating shaft; 4. an air inlet; 5. an air outlet; 6. a bolt; 7. and (5) a threaded blind hole.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a novel cabinet centrifugal fan, includes fan housing 1, and fan impeller 3 is installed in fan housing 1's inside rotation, installs drive fan impeller 3 pivoted actuating mechanism 2 on the fan housing 1, and fan impeller 3 includes sleeve 34 and two go-between 31 that connect through connecting rod 35, and sleeve 34's both ends outer wall all is connected with the connecting rod 35 that three group's slope set up, and connecting rod 35's one end is connected on go-between 31.

A plurality of impeller blades 32 which are arranged at equal angles are inserted and fixed between the two connecting rings 31;

the slot 311 has been seted up to one side of go-between 31, and slot 311 is annular equidistance and is provided with a plurality ofly, and the end connection of go-between 31 has picture peg 321, and splint 312 that can take place deformation are all installed to two inner walls of slot 311, and splint 312 are established to the splint of buckling, and the angle of buckling of splint 312 is 20-30 degrees.

Two clamping plates 312 abut against the sides of the insert plate 321; the pre-clamping of the plugboard 321 is achieved through the two clamping plates 312, the positioning ring 33 is fixed to the side portion of the connecting ring 31 through the bolts 6, the inclined abutting groove 332 is formed in the inner wall of the positioning ring 33, the top of the plugboard 321 abuts against the inclined surface of the abutting groove 332, the plugboard 321 is pressed through the positioning ring 33, and then the positioning of the impeller blades 32 is achieved.

The rubber block 313 is installed to the bottom of slot 311, and slot 314 has been seted up on the surface of slot 311, and the width of slot 314 is not greater than the thickness of picture peg 321, and when picture peg 321 inserted into slot 311 inside, rubber block 313 possessed certain frictional force to picture peg 321, picture peg 321 was pegged graft in the inside of slot 314.

The screw blind hole 7 has been seted up to the opposite side of go-between 31, has seted up through-hole 331 on the holding ring 33, and the one end of bolt 6 passes through-hole 331 threaded connection and the inside of screw blind hole 7, and the holding ring 33 of being convenient for can fix a position whole fan wheel 3 through a small amount of bolts 6.

The inside of the fan housing 1 is rotatably provided with a rotating shaft 36 through a bearing, one end of the rotating shaft 36 penetrates through the side wall of the fan housing 1 to be positioned outside the fan housing 1, and the sleeve 34 is sleeved and fixed on the outer wall of the rotating shaft 36.

The driving mechanism 2 comprises a motor arranged on the fan shell 1, the output shaft of the motor and one end of the rotating shaft 36 are respectively sleeved with a belt pulley, and the two belt pulleys are connected through belt transmission.

An air inlet 4 is formed in one end of the fan housing 1, an air outlet 5 is formed in the bottom of the fan housing 1, and the air outlet 5 is located at the lower end of the fan impeller 3.

When the fan impeller 3 of the cabinet type centrifugal fan is assembled, the impeller blades 32 are firstly installed, the inserting plates 321 welded at the end parts of the impeller blades 32 are inserted into the slots 311, in the process, the inserting plates 321 firstly abut against the clamping plates 312, the clamping plates 312 deform, the bottom ends of the inserting plates 321 are inserted into the notches 314 on the rubber blocks 313, the inserting plates 321 can be initially limited through the clamping plates 312, and the clamping force of the clamping plates 312 on the inserting plates 321 is larger than the gravity of the impeller blades 32;

according to the method, all impeller blades 32 are installed sequentially, then the positioning ring 33 is sleeved on the connecting ring 31, the bottom of the plugboard 321 is clamped into the abutting groove 332, the plugboard 321 abuts against the inclined surface of the abutting groove 332, the plugboard 321 is tightly pressed, and then the positioning ring 33 is fixed on the connecting ring 31 through the bolts 6.

Then the rotating shaft 36 is inserted into and fixed in the sleeve 34, the rotating shaft 36 is rotatably installed in the fan housing 1, finally, belt pulleys are installed on the output shaft of the motor and one end of the rotating shaft 36, and the two belt pulleys are sleeved with belts, so that the fan impeller 3 is driven to rotate by the motor.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 novel cabinet centrifugal fan, includes fan housing (1), its characterized in that: the inside of the fan shell (1) is rotatably provided with a fan impeller (3), the fan shell (1) is provided with a driving mechanism (2) for driving the fan impeller (3) to rotate, the fan impeller (3) comprises a sleeve (34) and two connecting rings (31) which are connected through a connecting rod (35), and a plurality of impeller blades (32) which are arranged at equal angles are fixedly inserted between the two connecting rings (31);

a slot (311) is formed in one side of the connecting ring (31), an inserting plate (321) is connected to the end part of the connecting ring (31), clamping plates (312) capable of deforming are arranged on two inner walls of the slot (311), and the two clamping plates (312) are abutted to the side parts of the inserting plate (321); the lateral part of go-between (31) is fixed with holding ring (33) through bolt (6), the conflict groove (332) of slope setting have been seted up to the inner wall of holding ring (33), the top of picture peg (321) is contradicted on the inclined plane of conflict groove (332).

2. The novel cabinet type centrifugal fan according to claim 1, wherein: rubber block (313) is installed to the bottom of slot (311), notch (314) have been seted up on the surface of slot (311), the width of notch (314) is not greater than the thickness of picture peg (321), picture peg (321) are pegged graft in the inside of notch (314).

3. The novel cabinet type centrifugal fan according to claim 1, wherein: the other side of the connecting ring (31) is provided with a threaded blind hole (7), the positioning ring (33) is provided with a through hole (331), and one end of the bolt (6) penetrates through the through hole (331) to be in threaded connection with the inside of the threaded blind hole (7).

4. The novel cabinet type centrifugal fan according to claim 1, wherein: the inside of fan shell (1) rotates and installs pivot (36), just the lateral wall that one end of pivot (36) passed fan shell (1) is located the outside of fan shell (1), sleeve (34) cover is established and is fixed on the outer wall of pivot (36).

5. The novel cabinet type centrifugal fan according to claim 4, wherein: the driving mechanism (2) comprises a motor arranged on the fan shell (1), a belt pulley is sleeved at one end of an output shaft of the motor and one end of a rotating shaft (36), and the two belt pulleys are connected through belt transmission.

6. The novel cabinet type centrifugal fan according to claim 1, wherein: an air inlet (4) is formed in one end of the fan shell (1), an air outlet (5) is formed in the bottom of the fan shell (1), and the air outlet (5) is located at the lower end of the fan impeller (3).