CN217814173U

CN217814173U - Anti-surge device of air suspension centrifugal fan

Info

Publication number: CN217814173U
Application number: CN202221827674.5U
Authority: CN
Inventors: 陈益文; 陈玉华; 陈皓; 陈晓生; 赵勇军
Original assignee: Jiangsu Zhongfu Power Technology Co ltd
Current assignee: Jiangsu Zhongfu Power Technology Co ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2022-11-15
Anticipated expiration: 2032-07-15

Abstract

The utility model relates to an anti-surge technical field specifically is an air suspension centrifugal fan anti-surge device, the on-line screen storage device comprises a base, a plurality of first springs, support plate and fan body, the centre gripping subassembly is installed at the top of support plate, the centre gripping subassembly is used for the fixed of fan body, the upper and lower end of first spring all is fixed with the end plate, the bottom at the support plate is installed to the top end plate, the top at the base is installed to the below end plate, the last fixed surface of below end plate has the sleeve, the lower fixed surface of top end plate has the inserted bar, inserted bar and telescopic inner wall clearance fit, the lower fixed surface of support plate has two first U-shaped pieces. The utility model discloses a cooperation of first spring and second spring is used for vibration amplitude when fan body operates reduces, and makes the impact of vibration conduction can be consumed by sleeve, inserted bar, slide bar and slider, makes the surge when fan body operates reduce, has not only reduced the decibel of noise, and makes the result of use of fan body promote.

Description

Anti-surge device of air suspension centrifugal fan

Technical Field

The utility model relates to an anti-surge technical field specifically is an air suspension centrifugal fan anti-surge device.

Background

The air suspension fan utilizes an air dynamic pressure bearing to replace a traditional sliding or rolling bearing, so that the purposes of high rotating speed, no friction and long service life are achieved. Specifically, the output shaft of the motor is assembled on two air bearings, the outer diameter of the output shaft is smaller than the inner diameter of the air bearings, and an air film gap is reserved between the output shaft and the air bearings. Before starting the operation, the output shaft naturally falls on the air bearing.

In the process of operating the air suspension centrifugal fan, the air suspension centrifugal fan can generate a surge phenomenon after contacting the ground due to self vibration, so that the noise of the air suspension centrifugal fan is increased, and the air suspension centrifugal fan is inconvenient to use; and the existing surge-proof device is not easy to fix the air suspension centrifugal fan, so that the installation of the air suspension centrifugal fan is laborious.

To the problem, the utility model provides an air suspension centrifugal fan surge-proof device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air suspension centrifugal fan surge preventer to solve the in-process that provides in the above-mentioned background art at air suspension centrifugal fan operation, can lead to its and the ground contact back surge phenomenon to appear because of self vibration, make air suspension centrifugal fan noise increase, it is comparatively inconvenient to use, and current surge preventer is difficult to fix air suspension centrifugal fan, leads to the comparatively hard problem of air suspension centrifugal fan installation.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an air suspension centrifugal fan surge-proof device, includes base, a plurality of first spring, support plate and fan body, the centre gripping subassembly is installed at the top of support plate, the centre gripping subassembly is used for the fixed of fan body, the upper and lower end of first spring all is fixed with the end plate, the top the bottom at the support plate is installed to the end plate, the below the top at the base is installed to the end plate, the below the last fixed surface of end plate has the sleeve, the top the lower fixed surface of end plate has the inserted bar, inserted bar and telescopic inner wall clearance fit, the lower fixed surface of support plate has two first U-shaped blocks, the top of base is seted up flutedly, be fixed with the slide bar between the relative inner wall of recess, two sliders have been cup jointed in the outside slip of slide bar, the slider is with the inner wall clearance fit of recess, two be fixed with the second spring between the slider, the second cup joints the spring in the outside of slide bar, the top of slider is fixed with the second U-shaped block, all be connected with the sleeve pipe through the pivot rotation between the relative inner wall of first U-shaped block and between the second U-shaped block, correspond to be fixed with the connecting rod that sets up.

Preferably, the clamping assembly comprises a rectangular frame plate, the rectangular frame plate is fixedly mounted on the support plate, and a supporting plate is fixed to the top of the rectangular frame plate.

Preferably, a support plate is fixed between the opposite inner walls of the rectangular frame plate, and a double-shaft motor is fixedly mounted on the upper surface of the support plate.

Preferably, the opposite inner walls of the rectangular frame plates are rotatably connected with threaded screw rods through bearings, the threaded screw rods are respectively arranged on two sides of the double-shaft motor, and the two threaded screw rods are driven by the double-shaft motor.

Preferably, the threaded screw rod is connected with a carrying block in a threaded manner, the carrying block is in sliding fit with the inner wall of the rectangular frame plate, and a clamping plate is fixed to the top of the carrying block.

Preferably, two hydraulic jacks are fixedly mounted at the top of the inner side of the base, and a push rod is fixed on one side of the base.

Preferably, the output ends of the two hydraulic jacks are fixedly provided with fixing plates, and the bottoms of the fixing plates are rotatably connected with a plurality of rollers through bearings.

To sum up, the beneficial effects of the utility model are that:

1. the utility model discloses in, use through the cooperation of first spring with the second spring for fan body vibration amplitude when moving reduces, and makes the impact of vibration conduction can be consumed by sleeve, inserted bar, slide bar and slider, makes the surge when fan body moves reduce, has not only reduced the decibel of noise, and makes the result of use of fan body promote.

2. In the utility model, the two hydraulic jacks push the rollers to extend out from the bottom of the base, so that the fan body can be better shifted by means of the push rod and the rollers; control two screw lead screws of biax motor drive and rotate, make it adjust the interval of two splint with lead screw drive's mode, accomplish the centre gripping of fan body with the help of two splint and fix for the installation of fan body is more convenient.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

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

FIG. 2 is a schematic structural view of the first spring, the second spring, the push rod and the roller of the present invention;

fig. 3 is a schematic structural view of the first U-shaped block, the second U-shaped block, the sleeve and the connecting rod of the present invention;

fig. 4 is a schematic structural view of the clamping assembly of the present invention;

fig. 5 is a schematic view of a part of the structure of the middle clamping assembly of the present invention.

In the figure: 1. a base; 2. a first spring; 3. a carrier plate; 4. a fan body; 5. an end plate; 6. a sleeve; 7. a rod is inserted; 8. a first U-shaped block; 9. a groove; 10. a slide bar; 11. a slider; 12. a second spring; 13. a second U-shaped block; 14. a sleeve; 15. a connecting rod; 16. a rectangular frame plate; 17. a pallet; 18. a support plate; 19. a double-shaft motor; 20. a threaded lead screw; 21. a carrier block; 22. a splint; 23. a hydraulic jack; 24. a push rod; 25. a fixing plate; 26. and a roller.

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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, an anti-surge device for an air suspension centrifugal fan comprises a base 1, a plurality of first springs 2, a support plate 3 and a fan body 4, a clamping assembly is installed at the top of the support plate 3 and used for fixing the fan body 4, end plates 5 are fixed at the upper and lower ends of the first springs 2, the upper end plate 5 is installed at the bottom of the support plate 3, the lower end plate 5 is installed at the top of the base 1, a sleeve 6 is fixed on the upper surface of the lower end plate 5, an inserted rod 7 is fixed on the lower surface of the upper end plate 5, the inserted rod 7 is in clearance fit with the inner wall of the sleeve 6, two first U-shaped blocks 8 are fixed on the lower surface of the support plate 3, a groove 9 is formed at the top of the base 1, a sliding rod 10 is fixed between the opposite inner walls of the groove 9, two sliding blocks 11 are sleeved on the outside of the sliding rod 10, a second spring 12 is fixed between the sliding blocks 11 and the inner wall of the groove 9, a second spring 12 is sleeved on the outside of the sliding rod 10, a second U-shaped block 13 is fixed between the opposite inner walls of the sliding rod, and a sleeve 14 is connected between the connecting rod 13, and a sleeve 14 is connected between the connecting rod.

Based on the structure, the first spring 2 and the second spring 12 are matched with each other, so that the vibration amplitude of the fan body 4 during operation is reduced, the impact of vibration conduction can be consumed by the sleeve 6, the inserted rod 7, the sliding rod 10 and the sliding block 11, the surge of the fan body 4 during operation is reduced, the decibel of noise is reduced, and the use effect of the fan body 4 is improved.

Referring to fig. 1, fig. 4 and fig. 5, the clamping assembly includes a rectangular frame plate 16, the rectangular frame plate 16 is fixedly mounted on the support plate 3, a support plate 17 is fixed at the top of the rectangular frame plate 16, a support plate 18 is fixed between the opposite inner walls of the rectangular frame plate 16, a double-shaft motor 19 is fixedly mounted on the upper surface of the support plate 18, the opposite inner walls of the rectangular frame plate 16 are rotatably connected with threaded lead screws 20 through bearings, the two threaded lead screws 20 are respectively arranged at two sides of the double-shaft motor 19, and the two threaded lead screws 20 are driven by the double-shaft motor 19, a load block 21 is in threaded connection on the threaded lead screws 20, the load block 21 is in sliding fit with the inner walls of the rectangular frame plate 16, and a clamping plate 22 is fixed at the top of the load block 21.

Based on above structure, control two screw lead screw 20 rotations of double-shaft motor 19 drive, make it adjust two splint 22's interval with screw rod transmission's mode, accomplish with the help of two splint 22 and fix the centre gripping of fan body 4 for fan body 4's installation is more convenient.

Referring to fig. 2, two hydraulic jacks 23 are fixedly mounted at the top of the inner side of the base 1, a push rod 24 is fixed at one side of the base 1, a fixing plate 25 is fixedly mounted at the output ends of the two hydraulic jacks 23, and a plurality of rollers 26 are rotatably connected to the bottom of the fixing plate 25 through bearings.

Based on the above structure, the two hydraulic jacks 23 are utilized to push the plurality of rollers 26 to extend out from the bottom of the base 1, so that the blower body 4 can be better shifted by the push rod 24 and the plurality of rollers 26.

The utility model discloses the theory of operation: the blower body 4 is placed on the supporting plate 17 and located between the two clamping plates 22, the double-shaft motor 19 is controlled to drive the two threaded screw rods 20 to rotate, the two clamping plates 22 are driven to move in the opposite directions in a screw rod transmission mode, the blower body 4 is clamped and fixed through the two clamping plates 22, the two hydraulic jacks 23 are controlled to extend, the hydraulic jacks 23 are driven to push the rollers 26 at the bottom of the fixing plate 25 to extend out of the base 1, the blower body 4 is transferred to a specified position through the push rod 24 in cooperation with the rollers 26, after the specified position is reached, the two hydraulic jacks 23 are controlled to shrink, the rollers 26 are led back to the inside of the base 1, so that the stability of the blower body 4 is guaranteed, when the blower body 4 operates, self vibration is transferred to the first springs 2, the first springs 2 are compressed, certain impact energy can be consumed in the process that the inserting rods 7 slide into the sleeves 6, the supporting plate 3 moves downwards to extrude the two connecting rods 15, the two sliding blocks 11 are driven to extrude the second springs 12, and in the process that the sliding blocks 11 slide along the sliding rod 10, the impact energy conducted again can be consumed, so that the blower body 4 can reduce the surge noise and the surge effect is better.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an air suspension centrifugal fan surge-proof device which characterized in that: including base (1), a plurality of first spring (2), support plate (3) and fan body (4), centre gripping subassembly is installed at the top of support plate (3), the centre gripping subassembly is used for the fixed of fan body (4), the upper and lower end of first spring (2) all is fixed with end plate (5), the top end plate (5) are installed in the bottom of support plate (3), the below end plate (5) are installed at the top of base (1), the below the upper surface of end plate (5) is fixed with sleeve (6), the top the lower fixed surface of end plate (5) has inserted bar (7), the inner wall clearance fit of inserted bar (7) and sleeve (6), the lower surface of support plate (3) is fixed with two first U-shaped blocks (8), recess (9) have been seted up at the top of base (1), be fixed with slide bar (10) between the relative inner wall of recess (9), the outside slip of slide bar (10) has cup jointed two sliders (11), slider (11) and the inner wall clearance fit of recess (9), be fixed with second spring (11) between two slider (11) and second spring (13), second spring (13) relative inner wall (13) fixed with second U-shaped block (13) top the slider (13) and second U-shaped block (13) and the inner wall clearance fit of slider (8), the slider (13) have fixed with the slider (11) and the slider (13) and the slider (11) and the slider (13) and the inner wall clearance fit of U-shaped block (8) that the slider (10) is fixed with the slider (8) that the slider (10) is fixed mutually, the slider (10) is fixed The inner walls are rotatably connected with sleeves (14) through rotating shafts, and connecting rods (15) are fixed between the two correspondingly arranged sleeves (14).

2. The anti-surge device of the air suspension centrifugal fan according to claim 1, characterized in that: the clamping assembly comprises a rectangular frame plate (16), the rectangular frame plate (16) is fixedly installed on the support plate (3), and a supporting plate (17) is fixed to the top of the rectangular frame plate (16).

3. The anti-surge device of the air suspension centrifugal fan according to claim 2, wherein: a supporting plate (18) is fixed between the opposite inner walls of the rectangular frame plate (16), and a double-shaft motor (19) is fixedly mounted on the upper surface of the supporting plate (18).

4. The anti-surge device of the air suspension centrifugal fan according to claim 3, characterized in that: the relative inner wall of the rectangular frame plate (16) is rotatably connected with threaded screw rods (20) through bearings, the threaded screw rods (20) are respectively arranged on two sides of a double-shaft motor (19), and the two threaded screw rods (20) are driven by the double-shaft motor (19).

5. The anti-surge device of the air suspension centrifugal fan as claimed in claim 4, wherein: the thread screw (20) is connected with a load block (21) in a threaded manner, the load block (21) is in sliding fit with the inner wall of the rectangular frame plate (16), and a clamping plate (22) is fixed at the top of the load block (21).

6. The anti-surge device of the air suspension centrifugal fan according to claim 1, wherein: the top of base (1) inboard is fixed mounting has two hydraulic jack (23), one side of base (1) is fixed with push rod (24).

7. The anti-surge device of the air suspension centrifugal fan as claimed in claim 6, wherein: and the output ends of the two hydraulic jacks (23) are fixedly provided with fixing plates (25), and the bottoms of the fixing plates (25) are rotatably connected with a plurality of rollers (26) through bearings.