CN219570359U

CN219570359U - Shaft cooling centrifugal fan

Info

Publication number: CN219570359U
Application number: CN202321156920.3U
Authority: CN
Inventors: 司正辉
Original assignee: Peixian Haozheng Electromechanical Equipment Co ltd
Current assignee: Peixian Haozheng Electromechanical Equipment Co ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-08-22
Anticipated expiration: 2033-05-15

Abstract

The utility model relates to a shaft cooling centrifugal fan which comprises a casing, wherein a driving motor is fixedly arranged on the upper surface of the casing, an output shaft of the driving motor movably penetrates through the inside of the casing, an air inlet pipe is fixedly arranged on the side wall of the casing, a sealing assembly is fixedly arranged on the surface of the air inlet pipe, the sealing assembly comprises two driven racks, two groups of driving gears and four rotary partition plates, the driven racks are slidably arranged in a limit guide rail arranged on the upper surface of the air inlet pipe, and the two groups of driving gears are symmetrically and movably arranged on the upper surface of the air inlet pipe. According to the utility model, the seal assembly is arranged, the driven rack in the seal assembly can move along the limit guide rail, so that the driving gear meshed with the surface is driven to rotate, the central shaft of the driving gear is connected with the rotary partition plate, the internal passage of the air inlet pipe is opened and closed through the rotation of the rotary partition plate, the size of the air inlet in the air inlet pipe can be regulated, the air inlet quantity can be controlled in real time, and the cooling effect is improved.

Description

Shaft cooling centrifugal fan

Technical Field

The utility model belongs to the technical field of centrifugal fans, and particularly relates to a shaft cooling centrifugal fan.

Background

The search CN218325369U discloses a shaft cooling centrifugal fan, which comprises a shell, wherein a fan channel is eccentrically arranged on one side of the shell; an air inlet net rack is fixedly arranged in the middle of the top of the shell; the motor is fixedly arranged in the middle of the air inlet net rack; the fan shaft is rotatably arranged in the shell and is in transmission connection with the motor, and the bottom end of the fan shaft is of a shoulder structure; the fan shaft provides the independently continuously circulating cooling oil circulation structure, the screw propeller is driven to rotate through the synchronous gear in the rotating process of the fan shaft, cooling oil is conveyed, when the cooling oil is lifted upwards, the cooling oil passes through the air hole A to enter the lower disc, is input into the upper short tube and then passes through the air hole B to realize backflow, a complete circulation path is formed to continuously provide the effect of heat dissipation and cooling, the stability of the fan shaft is ensured, the expansion of the fan shaft is avoided, and the problem that the existing fan lacks the cooling oil circulation structure capable of independently continuously circulating is solved.

But the present inventors have found that this technical solution still has at least the following drawbacks:

the device drives the flabellum through the fan shaft and rotates to can absorb the casing inside to outside air, thereby accomplish the cooling of counter shaft, but in the in-service use discovers that the fan passageway is fixed open all the time, when not using, the fan passageway is the same with external environment this moment still, along with the flow of air, thereby make light debris such as external catkin fall inside the casing, when starting next time, along with the rotation of fan shaft, the fan shaft will twine debris this moment, can influence the normal use of fan shaft.

The present utility model has been made in view of this.

Disclosure of Invention

In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that:

a shaft cooling centrifugal fan comprises

The upper surface of the shell is fixedly provided with a driving motor, an output shaft of the driving motor movably penetrates through the interior of the shell, the side wall of the shell is fixedly provided with an air inlet pipe, the surface of the air inlet pipe is fixedly provided with a sealing component, and the sealing component is used for sealing a cavity in the shell;

the sealing assembly comprises two driven racks, two groups of driving gears and four rotating partition plates, wherein the driven racks are arranged inside a limiting guide rail arranged on the upper surface of an air inlet pipe in a sliding mode, the driving gears are symmetrically and movably arranged on the upper surface of the air inlet pipe, the driving gears are respectively meshed with the two driven racks, the rotating partition plates are movably arranged on the inner wall of the air inlet pipe, and the rotating partition plates are fixedly connected with the rotating centers of the rotating partition plates and the two groups of driving gears.

As a preferred implementation mode of the utility model, the upper surface of the shell is provided with a plurality of stepped grooves, the side walls of the stepped grooves are movably provided with sealing plates, the sizes of the stepped grooves of the sealing plates are adaptive, and the upper surface of the shell outside the stepped grooves is fixedly provided with corresponding baffle plates.

The shaft cooling centrifugal fan according to claim, wherein two supporting plates are fixedly arranged at the tail end of an output shaft of a driving motor in the casing, and a plurality of fan blades are fixedly arranged between the two supporting plates.

As a preferable implementation mode of the utility model, the side wall of the driven rack is movably provided with a swing arm, the side wall of the swing arm is movably provided with a synchronous rod, the swing arm is obliquely arranged, and the central position of the synchronous rod is fixedly provided with a pull rod.

As a preferred implementation mode of the utility model, the tail end of the pull rod is movably inserted into the positioning sleeve, a cavity is formed in the inner wall of the cavity, a sliding plate is slidably arranged in the cavity, and the pull rod is fixedly arranged on the sliding plate.

As a preferred implementation mode of the utility model, the right side wall of the sliding plate is movably provided with a threaded shaft, the threaded shaft movably penetrates through the side wall of the positioning sleeve, the surface of the threaded shaft is screwed with a positioning nut, the side wall of the positioning sleeve is fixedly provided with a reset spring, and the other side wall of the reset spring is fixedly arranged on the side wall of the sliding plate.

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

according to the utility model, the seal assembly is arranged, the driven rack in the seal assembly can move along the limit guide rail, so that the driving gear meshed with the surface is driven to rotate, the central shaft of the driving gear is connected with the rotary partition plate, the internal passage of the air inlet pipe is opened and closed through the rotation of the rotary partition plate, the size of the air inlet in the air inlet pipe can be regulated, the air inlet quantity can be controlled in real time, and the cooling effect is improved.

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

Drawings

In the drawings:

FIG. 1 is a schematic diagram of a three-dimensional structure of a shaft-cooled cooling centrifugal fan;

FIG. 2 is a schematic diagram of the internal structure of a shaft cooling centrifugal fan;

fig. 3 is a sectional view of a section a of the shaft cooling centrifugal fan.

In the figure: 1. a housing; 2. an air inlet pipe; 3. a driving motor; 4. a baffle; 5. a sealing plate; 6. a stepped groove; 7. a driven rack; 8. a drive gear; 9. swing arms; 10. a synchronizing lever; 11. a spacing guide rail; 12. a pull rod; 13. a positioning sleeve; 14. rotating the partition; 15. a support plate; 16. a fan blade; 17. a threaded shaft; 18. positioning a nut; 19. a slide plate; 20. a return spring; 21. a cavity.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model.

As shown in fig. 1 to 3, the shaft cooling centrifugal fan comprises

The device comprises a shell 1, wherein a driving motor 3 is fixedly arranged on the upper surface of the shell 1, an output shaft of the driving motor 3 movably penetrates through the interior of the shell 1, an air inlet pipe 2 is fixedly arranged on the side wall of the shell 1, a sealing component is fixedly arranged on the surface of the air inlet pipe 2, and the sealing component is used for sealing a cavity in the shell 1;

the sealing assembly comprises two driven racks 7, two groups of driving gears 8 and four rotating partition plates 14, wherein the driven racks 7 are arranged inside a limiting guide rail 11 formed in the upper surface of the air inlet pipe 2 in a sliding mode, the two groups of driving gears 8 are symmetrically and movably arranged on the upper surface of the air inlet pipe 2, the two groups of driving gears 8 are respectively meshed with the two driven racks 7, the four rotating partition plates 14 are movably arranged on the inner wall of the air inlet pipe 2, and the rotating centers of the four rotating partition plates 14 are fixedly connected with the rotating centers of the two groups of driving gears 8.

Through being provided with seal assembly, driven rack among the seal assembly can remove along spacing guide rail to drive the driving gear of surface engagement and rotate, and driving gear center pin is connected with rotatory baffle, thereby opens and shuts the inside passageway of air-supply line through rotatory baffle is rotatory, and can also adjust the size of the inside air inlet of air-supply line, can real-time control air-supply quantity, has improved refrigerated effect.

In a specific embodiment, the upper surface of the casing 1 is provided with a plurality of stepped grooves 6, the side walls of the plurality of stepped grooves 6 are movably provided with sealing plates 5, the dimension of the stepped grooves 6 of the sealing plates 5 is adapted, and the upper surface of the casing 1 outside the plurality of stepped grooves 6 is fixedly provided with corresponding baffle plates 4. And wind enters the inside of the casing 1 through the air inlet pipe 2, and after certain wind is inhaled, the inside moves upwards at the moment, so that the sealing plate 5 at the moment is lifted to start rotating, the air flow can flow, and the cooling effect is improved.

Further, two support plates 15 are fixedly arranged at the tail end of the output shaft of the driving motor 3 in the casing 1, and a plurality of fan blades 16 are fixedly arranged between the two support plates 15. The driving motor 3 is started, the two supporting plates 15 are driven to start rotating at the moment by the output shaft of the driving motor 3, the inner supporting plates 15 drive the fan blades 16 to start rotating, and air suction is arranged inside the fan blades.

Further, the swing arm 9 is movably arranged on the side wall of the driven rack 7, the synchronizing rod 10 is movably arranged on the side wall of the swing arm 9, the swing arm 9 is obliquely arranged, and the pull rod 12 is fixedly arranged at the center of the synchronizing rod 10. The tail end of the pull rod 12 is movably inserted and arranged inside the positioning sleeve 13, a cavity 21 is formed in the inner wall of the cavity 21, a sliding plate 19 is arranged inside the cavity 21 in a sliding manner, and the pull rod 12 is fixedly arranged on the sliding plate 19. The synchronizing rod 10 moves horizontally to the right, and then drives the swing arm 9 to start moving outwards at the moment, so that the driven rack 7 starts moving outwards, and drives the four driving gears 8 on the surface to start rotating.

Further, a threaded shaft 17 is movably arranged on the right side wall of the sliding plate 19, the threaded shaft 17 movably penetrates through the side wall of the positioning sleeve 13, a positioning nut 18 is screwed on the surface of the threaded shaft 17, a reset spring 20 is fixedly arranged on the side wall of the positioning sleeve 13, and the other side wall of the reset spring 20 is fixedly arranged on the side wall of the sliding plate 19. The threaded shaft 17 starts to move outwards at the moment through the rotation of the nut, so that the sliding plate 19 is pulled to synchronously start to move outwards, the reset spring 20 starts to be compressed in the moving process of the sliding plate 19 at the moment, and the sliding plate 19 moves at the moment to drive the pull rod 12 at the moment to start to move.

The implementation principle of the shaft cooling centrifugal fan of the embodiment is as follows: when the device is needed to be used, firstly, an operator needs to manually rotate the positioning nut 18, the threaded shaft 17 starts to move outwards through the rotation of the nut, so that the sliding plate 19 is pulled to synchronously start to move outwards, the reset spring 20 starts to be compressed in the moving process of the sliding plate 19, the sliding plate 19 moves to drive the pull rod 12 to start to move at the moment, the synchronous rod 10 is driven to move horizontally to the right, the swing arm 9 is driven to start to move outwards, the driven rack 7 starts to move outwards, the four driving gears 8 on the surface are driven to start to rotate, the four driving gears 8 rotate to drive the coaxially connected rotating partition plates 14 to start to rotate, and the aim of opening the air inlet pipe 2 is achieved.

At this time, the driving motor 3 is started, the two supporting plates 15 are driven to start rotating at this time by the output shaft of the driving motor 3, the inner supporting plates 15 drive the fan blades 16 to start rotating, air suction is formed inside the fan blades, air enters the casing 1 through the air inlet pipe 2, and after certain air is sucked, the air moves upwards at this time, so that the sealing plate 5 at this time is lifted to start rotating, and the air flow can flow, so that the cooling effect is improved.

Claims

1. The shaft cooling centrifugal fan is characterized by comprising

The device comprises a shell (1), wherein a driving motor (3) is fixedly arranged on the upper surface of the shell (1), an output shaft of the driving motor (3) movably penetrates through the interior of the shell (1), an air inlet pipe (2) is fixedly arranged on the side wall of the shell (1), and a sealing assembly is fixedly arranged on the surface of the air inlet pipe (2) and used for sealing an inner cavity of the shell (1);

the sealing assembly comprises two driven racks (7), two groups of driving gears (8) and four rotary partition plates (14), wherein the driven racks (7) are arranged inside a limit guide rail (11) which is arranged on the upper surface of an air inlet pipe (2) in a sliding mode, the driving gears (8) are symmetrically and movably arranged on the upper surface of the air inlet pipe (2), the driving gears (8) are respectively meshed with the two driven racks (7), the rotary partition plates (14) are movably arranged on the inner wall of the air inlet pipe (2), and the rotary partition plates (14) are fixedly connected with the rotary centers of the two groups of driving gears (8).

2. The shaft cooling centrifugal fan according to claim 1, wherein a plurality of stepped grooves (6) are formed in the upper surface of the casing (1), sealing plates (5) are movably arranged on the side walls of the stepped grooves (6), the sealing plates (5) are adaptive to the stepped grooves (6) in size, and corresponding baffle plates (4) are fixedly arranged on the upper surface of the casing (1) outside the stepped grooves (6).

3. The shaft cooling centrifugal fan according to claim 1, wherein two support plates (15) are fixedly arranged at the tail end of an output shaft of a driving motor (3) positioned in the casing (1), and a plurality of fan blades (16) are fixedly arranged between the two support plates (15).

4. The shaft cooling centrifugal fan according to claim 1, wherein a swing arm (9) is movably arranged on the side wall of the driven rack (7), a synchronizing rod (10) is movably arranged on the side wall of the swing arm (9), the swing arm (9) is obliquely arranged, and a pull rod (12) is fixedly arranged at the center of the synchronizing rod (10).

5. The shaft cooling centrifugal fan according to claim 4, wherein the tail end of the pull rod (12) is movably inserted into the positioning sleeve (13), a cavity (21) is formed in the positioning sleeve (13), the cavity (21) is formed in the inner wall of the cavity (21), a sliding plate (19) is slidably arranged in the cavity (21), and the pull rod (12) is fixedly arranged on the sliding plate (19).

6. The shaft cooling centrifugal fan according to claim 5, wherein a threaded shaft (17) is movably arranged on the right side wall of the sliding plate (19), the threaded shaft (17) movably penetrates through the side wall of the positioning sleeve (13), a positioning nut (18) is screwed on the surface of the threaded shaft (17), a reset spring (20) is fixedly arranged on the side wall of the positioning sleeve (13), and the other side wall of the reset spring (20) is fixedly arranged on the side wall of the sliding plate (19).