CN216788758U

CN216788758U - Centrifugal fan with shock attenuation formula

Info

Publication number: CN216788758U
Application number: CN202220115873.7U
Authority: CN
Inventors: 黄汉明; 江文杰
Original assignee: Guangdong Hengli Ventilator Co ltd
Current assignee: Guangdong Hengli Ventilator Co ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-06-21
Anticipated expiration: 2032-01-17

Abstract

The utility model discloses a damping centrifugal ventilator which comprises a fan housing, fan blades, a driving motor and a bottom damper, wherein the driving motor is arranged on one side of the fan housing; the utility model relates to the technical field of fans, in particular to a damping centrifugal fan which is simple in structure and convenient to control.

Description

Damping centrifugal ventilator

Technical Field

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

Background

Ventilators are a common type of machines in modern industrial production, which are generally used for exchanging air for plants or rooms, and the types of ventilators are very many, including centrifugal fans, which are driven fluid machines that increase the pressure of gas and discharge 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;

in the application process of the centrifugal fan, the centrifugal fan is generally applied to end connection of a ventilation pipeline, and in the application process of the centrifugal fan, due to rotation of a fan blade, not only a centrifugal force but also a force in a normal direction of a rotating surface of the fan blade can be generated, so that the fan blade can generate two forces in a tangential direction and a normal direction of the rotation of the fan blade, a shell is easy to shake, and accordingly the centrifugal fan is unstable in operation and generates friction.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a damping centrifugal fan, which solves the problems of the prior art.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a damping centrifugal fan comprises a fan housing, fan blades, a driving motor and a bottom damper, wherein the driving motor is installed on one side of the fan housing, the fan blades are sleeved on the driving end of the driving motor, the fan blades are embedded in the fan housing, the bottom damper is arranged on the bottom surface of the fan housing, and a fan blade fixing and shockproof structure is arranged on the fan housing;

the fixed shockproof structure of flabellum includes: the damping device comprises a rotating shaft, a fixing ring, a socket groove, a rotating bearing and a damping ring pad;

the fan blade fixing device is characterized in that a rotating shaft is connected to the driving end of the driving motor, the fan blade sleeve is arranged on the rotating shaft, a fixing ring is sleeved on one side, located on the fan blade, of the rotating shaft, a bearing groove is formed in the center of the fan blade, the fixing ring extends out of the bearing groove and is inserted into the bearing groove, a rotating bearing is arranged on the rotating shaft and is embedded in the fixing ring, a damping ring pad is arranged on the other side, located on the rotating shaft and on the fan blade, of the rotating shaft in a sleeved mode, and an adjusting assembly is arranged on the fan housing and connected with the damping ring pad.

Preferably, the bottom shock absorber is composed of a pair of connecting plates extending from two sides of the bottom end of the fan housing and two pairs of fixing bolts arranged on the pair of connecting plates.

Preferably, the fixing ring is of an annular sleeve structure with a conical end.

Preferably, the adjustment assembly comprises: the adjusting bolt, the sleeve groove and the ball slip ring;

the axial center of the fan housing is provided with a threaded hole, the adjusting bolt is in threaded connection with the threaded hole, the end part of the adjusting bolt is connected with a sleeve groove, a ball sliding ring is movably mounted in the sleeve groove, and the damping ring pad is in contact with the ball sliding ring.

Preferably, a sealing sleeve is arranged on the inner side of the axis of the fan housing and sleeved outside the sleeve groove.

Advantageous effects

The utility model provides a damping centrifugal fan. The method has the following beneficial effects: this centrifugal fan with shock attenuation formula, simple structure, control is convenient, when the bottom of fan pump case sets up the bottom fixer, when utilizing the fixed shockproof structure of flabellum on the fan pump case to carry out spacing fixed to the fan flabellum, can reduce the vibrations of fan flabellum because rivers strike and the all directions that mechanical transmission leads to, reduce the vibrations protective equipment of ventilation blower.

Drawings

Fig. 1 is a schematic front view of a centrifugal fan with a damper according to the present invention.

Fig. 2 is a side view schematically showing a centrifugal fan with a damper according to the present invention.

Fig. 3 is a partial sectional view of a centrifugal fan with a damper according to the present invention.

In the figure: 1. a fan housing; 2. fan blades; 3. a drive motor; 4. a bottom shock absorber; 41. a connecting plate; 42. fixing the bolt; 5. a rotating shaft; 6. a fixing ring; 7. a socket groove; 8. a rotating bearing; 9. a shock-absorbing ring pad; 10. adjusting the bolt; 11. sleeving a groove; 12. a ball slip ring; 13. and (5) sealing the sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

All the electrical components in the present application are connected with the power supply adapted to the electrical components through a wire, and an appropriate controller and an appropriate encoder should be selected according to actual conditions to meet control requirements, and specific connection and control sequences should be obtained.

Example (b): as can be seen from the attached figures 1-3 of the specification, the damping centrifugal ventilator comprises a fan housing 1, fan blades 2, a driving motor 3 and a bottom damper 4, wherein the driving motor 3 is installed on one side of the fan housing 1, the fan blades 2 are sleeved on a driving end of the driving motor 3, the fan blades 2 are embedded in the fan housing 1, the bottom damper 4 is arranged on the bottom surface of the fan housing 1, a blade fixing and shockproof structure is arranged on the fan housing 1, in the specific implementation process, the fan housing 1 is sleeved outside the fan blade 2, the fan blade 2 is driven to rotate in the fan housing 1 by the driving motor 3, the fan is further used for centrifugally discharging air through a centrifugal pump shell, a bottom shock absorber 4 is arranged at the bottom of the fan pump shell and used for fixing and damping the fan pump shell, and the fan blade 2 is fixed through a blade fixing and shock-proof structure;

as can be seen from fig. 1 to 3 of the specification, the above-mentioned blade fixing and shock-proof structure includes: the connection relation and the position relation of the rotating shaft 5, the fixing ring 6, the socket groove 7, the rotating shaft 5 bearing and the damping ring pad 9 are as follows;

a rotating shaft 5 is connected to a driving end of the driving motor 3, the fan blade 2 is sleeved on the rotating shaft 5, a fixing ring 6 is sleeved on the rotating shaft 5 and located on one side of the fan blade 2, a socket groove 7 is formed in the center of the fan blade 2, a socket extending from the fixing ring 6 is inserted into the socket groove 7, a rotating shaft 5 bearing is arranged on the rotating shaft 5 and embedded in the fixing ring 6, a damping ring gasket 9 is sleeved on the rotating shaft 5 and located on the other side of the fan blade 2, and an adjusting assembly is arranged on the fan housing 1 and connected with the damping ring gasket 9;

in the concrete implementation process, the part that driving motor 3 inserted in the fan pump case is rotation axis 5, the solid fixed ring 6 of tip installation of rotation axis 5, a one side for fixed fan flabellum 2, the fan pump case is the structure of two halves formula, after the lock, it contradicts fan flabellum 2's the other end to promote damping ring pad 9 through adjusting part, and then make fan flabellum 2 promote the extrusion on solid fixed ring 6, gu fixed ring 6 and the overcoat that rotation axis 5 held is connected, thereby make the both ends of fan flabellum 2 fixed, and fan flabellum 2 drives solid fixed ring 6 and damping ring pad 9 synchronous revolution, it is spacing with bellmouth groove 7 in fan flabellum 2 axle center to utilize solid fixed ring 6, improve fan flabellum 2's rotational stability.

Preferably, the bottom damper 4 is formed by a pair of connecting plates 41 extending from two sides of the bottom end of the fan housing 1, and two pairs of fixing bolts 42 mounted on the pair of connecting plates 41, and is used for fixing the fan housing 1.

Preferably, the fixing ring 6 is an annular sleeve structure with a conical end, and the socket groove 7 is an inner-slope groove.

Preferably, as can be seen from fig. 1 to 3 of the specification, the adjusting assembly includes: the adjusting bolt 10, the sleeve groove 11 and the ball slip ring 12 are connected and positioned as follows;

the axial center of the fan housing 1 is provided with a threaded hole, an adjusting bolt 10 is in threaded connection with the threaded hole, the end part of the adjusting bolt 10 is connected with a sleeve groove 11, a ball sliding ring 12 is movably arranged in the sleeve groove 11, and a damping ring pad 9 is in contact with the ball sliding ring 12;

in the specific implementation process, the adjusting bolt 10 is rotated to enable the adjusting bolt 10 to push the sleeve groove 11 to move transversely, the sleeve groove 11 is a plate with a concave structure, the ball sliding ring 12 on the inner side of the sleeve groove 11 drives the shock absorption ring pad 9 to rotate, and the shock absorption ring pad 9 is in contact with the ball sliding ring 12, so that the shock absorption ring pad 9 can rotate together with the fan blade 2.

Preferably, a sealing sleeve 13 is arranged on the inner side of the axis of the fan housing 1 and sleeved outside the sleeve groove 11, and a gap is formed between the sleeve groove 11 and the fan housing 1 of the sealing sleeve 13.

In conclusion, the centrifugal fan with the shock absorption function is simple in structure and convenient to control, when the bottom end of the fan pump shell is provided with the bottom fixer, the fan blade fixing shock-proof structure on the fan pump shell is utilized to effectively limit and fix the fan blades 2, the shock of the fan blades 2 in all directions caused by water flow impact and mechanical transmission can be reduced, and the shock protection equipment of the fan is reduced.

It should be noted that, in this document, relational terms such as first and second, and the like are 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. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

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. A damping type centrifugal ventilator comprises a fan housing (1), fan blades (2), a driving motor (3) and a bottom damper (4), wherein the driving motor (3) is installed on one side of the fan housing (1), the fan blades (2) are sleeved on the driving end of the driving motor (3), the fan blades (2) are embedded in the fan housing (1), and the damping type centrifugal ventilator is characterized in that the bottom damper (4) is arranged on the bottom surface of the fan housing (1), and a blade fixing and shockproof structure is arranged on the fan housing (1);

the fixed shockproof structure of flabellum includes: the device comprises a rotating shaft (5), a fixing ring (6), a socket groove (7), a rotating shaft (5) socket and a damping ring pad (9);

be connected with rotation axis (5) on the drive end of driving motor (3), on rotation axis (5) was located to fan flabellum (2) cover, one side cover that just is located fan flabellum (2) on rotation axis (5) is equipped with solid fixed ring (6), the center of fan flabellum (2) is equipped with socket groove (7), gu extend the socket cartridge on fixed ring (6) in socket groove (7), be equipped with rotation axis (5) on rotation axis (5) and hold and inlay the dress in solid fixed ring (6), the opposite side cover that just is located fan flabellum (2) on rotation axis (5) is equipped with damping ring pad (9), be equipped with adjusting part and damping ring pad (9) on fan housing (1) and be connected.

2. The centrifugal fan with the shock absorber according to claim 1, wherein the bottom shock absorber (4) is composed of a pair of connecting plates (41) extending from both sides of the bottom end of the fan casing (1), and two pairs of fixing bolts (42) mounted on the pair of connecting plates (41).

3. A centrifugal ventilator with shock absorption according to claim 1, characterized in that the fixing ring (6) is of an annular sleeve structure with a cone-shaped end.

4. The centrifugal ventilator of claim 1 wherein said adjustment assembly comprises: the adjusting bolt (10), the sleeve groove (11) and the ball sliding ring (12);

the axial center of the fan housing (1) is provided with a threaded hole, the adjusting bolt (10) is in threaded connection with the threaded hole, the end part of the adjusting bolt (10) is connected with a sleeve groove (11), a ball sliding ring (12) is movably mounted in the sleeve groove (11), and the damping ring pad (9) is in contact with the ball sliding ring (12).

5. The centrifugal fan with the shock absorption function as claimed in claim 4, wherein a sealing sleeve (13) is arranged on the inner side of the shaft center of the fan housing (1) and sleeved outside the sleeve groove (11).