Self-lubricating leakage-free magnetic fan device

Abstract

The utility model discloses a self-lubricating leakage-free magnetic fan device, which relates to the technical field of circulating fans of ethylene oxide sterilizers and comprises a motor, a connecting frame is mounted on a shell at the output end of the motor, a bearing support frame is mounted at one end, far away from the motor, of the connecting frame, a rotating shaft is arranged in the bearing support frame, and the rotating shaft is connected with the motor. The end, away from the motor, of the rotating shaft penetrates through the bearing supporting frame to be provided with fan blades, a magnetic driving mechanism is arranged in the connecting frame, and a lubricating mechanism is arranged between the two bearings. The isolation frame is arranged between the outer magnetic rotor and the inner magnetic rotor, the isolation frame divides the connecting frame into two independent cavities, ethylene oxide is prevented from entering the motor, the use safety of the device is improved, the ball valve, the grease nipple and the oil seal are installed on the bearing supporting frame, lubricating grease can be effectively injected, and the service life of the device is prolonged. And leakage of lubricating grease and pollution to an ethylene oxide sterilization chamber are prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to an ethylene oxide sterilizer circulating fan technical field, specifically a self -lubricating no -leakage magnetic force fan device. BACKGROUND

[0002] Ethylene oxide has been used in disinfection and sterilization for a long time, and is the only chemical sterilizing agent recognized by the world so far. It is mainly used for industrial scale disinfection and sterilization, but with the development of technology, ethylene oxide sterilization technology can be safely used for sterilization of precision medical instruments in medical institutions.

[0003] In order to maintain the stable temperature and humidity in the sterilization chamber, improve the sterilization efficiency, the circulating fan is usually installed in the sterilization chamber, but due to the flammable and explosive nature of ethylene oxide, the gap between the rotating shaft and the shell of the ordinary fan is easy to make ethylene oxide enter the fan, which is very dangerous to use.

[0004] In view of the above problems, an improved self-lubricating no-leakage magnetic force fan device is designed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a self-lubricating no-leakage magnetic force fan device to solve the problems in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0007] A self-lubricating no-leakage magnetic force fan device, comprising a motor and two bearings, a connecting frame is installed on the shell of the motor output end, a bearing support frame is installed at one end of the connecting frame away from the motor, a rotating shaft is arranged in the bearing support frame, the side wall of the rotating shaft is rotatably connected with the inner wall of the bearing support frame through two bearings, a fan blade is installed at one end of the rotating shaft away from the motor through the bearing support frame, a magnetic drive mechanism for driving the rotating shaft to rotate is arranged in the connecting frame, and a lubricating mechanism for lubricating the bearings is arranged between the two bearings.

[0008] As a further scheme of the utility model: the magnetic drive mechanism comprises an isolation frame and a pressing sleeve, the isolation frame is installed at one end of the bearing support frame close to the motor, the isolation frame is arranged in the connecting frame, an outer magnetic rotor is installed at the output end of the motor through the connecting frame, the outer magnetic rotor is arranged between the isolation frame and the connecting frame, an inner magnetic rotor cooperating with the outer magnetic rotor is installed at one end of the rotating shaft close to the motor through the pressing sleeve and the screw, the inner magnetic rotor is arranged in the isolation frame, and the bottom of the isolation frame is oval.

[0009] As a further scheme of the utility model: the connecting frame and the bearing support frame are provided with O-rings for sealing.

[0010] As a further scheme of the utility model: the lubricating mechanism comprises an intermediate gasket, the intermediate gasket is installed on the inner wall of the bearing support frame between the two bearings, a ball valve is installed on the side wall of the bearing support frame, a grease nipple is installed on the input end of the ball valve, the grease nipple, the ball valve and the bearing support frame are in communication with each other, and an oil seal is arranged in the open end of the bearing support frame close to one end of the fan blade for sealing the bearing support frame and the rotating shaft.

[0011] As a further scheme of the utility model: a hole retainer is installed on the inner wall of the bearing support frame between the oil seal and the bearing, the hole retainer is arranged close to the bearing, an axle retainer is arranged in the hole retainer for blocking the bearing, and the axle retainer is sleeved on the side wall of the rotating shaft.

[0012] As a further scheme of the utility model: the intermediate gasket in the lubricating mechanism is replaced by a rotating block, the rotating block is installed on the side wall of the rotating shaft between the two bearings, a plurality of grooves are formed in the inner wall of the bearing support frame opposite to the side wall of the rotating block, a rotating ring is installed on the side wall of the rotating block and used in cooperation with the grooves, the rotating ring is rotatably connected in the grooves, and gaps are formed between the side wall of the rotating block and the inner wall of the bearing support frame and between the side wall of the rotating ring and the inner wall of the grooves to facilitate the movement of lubricating grease.

[0013] As a further scheme of the utility model: the side walls of the connecting frame and the bearing support frame are provided with heat dissipation fins for facilitating heat dissipation.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model sets the isolation frame between the outer magnetic rotor and the inner magnetic rotor, the isolation frame divides the connecting frame into two independent chambers, effectively avoids the ethylene oxide from entering the motor, and improves the safety of the device.

[0016] The bottom of the isolation frame is oval-shaped, can buffer pressure, and balances the internal and external pressures.

[0017] The utility model is provided with the ball valve, the grease nipple and the oil seal on the bearing support frame, can simply and effectively inject lubricating grease and prevent the leakage of the lubricating grease, and pollutes the ethylene oxide sterilization chamber.

[0018] The utility model makes the lubricating grease enter the gaps between the side wall of the rotating block and the inner wall of the bearing support frame and the gaps between the side wall of the rotating ring and the inner wall of the grooves, can realize a certain degree of sealing, prevents the ethylene oxide from entering the motor, and improves the safety of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0022] The components are: 1. Connecting frame; 2. Outer magnetic rotor; 3. Isolation frame; 4. Inner magnetic rotor; 5. Bearing support frame; 6. Pressure sleeve; 7. Rotating shaft; 8. Intermediate gasket; 9. Hole retaining ring; 10. Shaft retaining ring; 11. Bearing; 12. O-ring; 13. Fan blade; 14. Ball valve; 15. Grease nipple; 16. Oil seal; 17. Motor; 18. Rotating block; 19. Groove; 20. Rotating ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0024] Please see Figures 1-2 In this embodiment of the present invention, a self-lubricating, leak-free magnetic fan device includes a motor 17 and two bearings 11. A connecting frame 1 is installed on the housing of the output end of the motor 17. A bearing support frame 5 is installed at the end of the connecting frame 1 away from the motor 17. A rotating shaft 7 is provided inside the bearing support frame 5. The side wall of the rotating shaft 7 is rotatably connected to the inner wall of the bearing support frame 5 through the two bearings 11. A fan blade 13 is installed at the end of the rotating shaft 7 away from the motor 17 through the bearing support frame 5. A magnetic drive mechanism for magnetically driving the rotating shaft 7 is provided inside the connecting frame 1. A lubrication mechanism for lubricating the bearings 11 is provided between the two bearings 11.

[0025] The magnetic driving mechanism comprises an isolation frame 3 and a pressing sleeve 6, the isolation frame 3 is installed at one end of the bearing support frame 5 close to the motor 17, the isolation frame 3 is arranged inside the connecting frame 1, an O-ring 12 for sealing is arranged at the connection between the isolation frame 3 and the bearing support frame 5, an outer magnetic rotor 2 is installed at the output end of the motor 17 through the connecting frame 1, the outer magnetic rotor 2 is arranged between the isolation frame 3 and the connecting frame 1, an inner magnetic rotor 4 used in cooperation with the outer magnetic rotor 2 is installed at one end of the rotating shaft 7 close to the motor 17 through the pressing sleeve 6 and a screw, the inner magnetic rotor 4 is arranged inside the isolation frame 3, the bottom of the isolation frame 3 is oval-shaped, which can play a buffering effect and balance the internal and external pressure.

[0026] In use, the motor 17 is started, the output end of the motor 17 drives the outer magnetic rotor 2 to rotate, under the action of the magnetic force, the outer magnetic rotor 2 drives the inner magnetic rotor 4 to rotate, the inner magnetic rotor 4 drives the rotating shaft 7 to rotate, and the rotating shaft 7 drives the fan blade 13 to rotate, so that the fan blade 13 blows air.

[0027] The lubricating mechanism comprises an intermediate gasket 8, the intermediate gasket 8 is installed on the inner wall of the bearing support frame 5 between the two bearings 11, a ball valve 14 is installed on the side wall of the bearing support frame 5, a grease nipple 15 is installed at the input end of the ball valve 14, the grease nipple 15, the ball valve 14 and the inside of the bearing support frame 5 are in communication with each other, and an oil seal 16 for sealing the bearing support frame 5 and the rotating shaft 7 is arranged in the open end of the bearing support frame 5 close to the fan blade 13.

[0028] In use, the ball valve 14 is opened, lubricating oil is added to the inside of the bearing support frame 5 through the grease nipple 15, under the blockage of the intermediate gasket 8, the lubricating oil flows to the bearings 11 along the gap between the intermediate gasket 8 and the bearing support frame 5 to lubricate the bearings 11.

[0029] A hole retainer 9 is installed on the inner wall of the bearing support frame 5 between the oil seal 16 and the bearing 11, the hole retainer 9 is arranged close to the bearing 11, an axle retainer 10 for blocking the bearing 11 is arranged inside the hole retainer 9, and the axle retainer 10 is sleeved on the side wall of the rotating shaft 7. Example 2

[0030] Please refer to Figure 3The embodiment is different from the embodiment 1 in that the middle pad sleeve 8 in the lubricating mechanism is replaced by a rotating block 18, the rotating block 18 is installed on the side wall of the rotating shaft 7 between the two bearings 11, a plurality of grooves 19 are formed on the inner wall of the bearing support frame 5 opposite to the side wall of the rotating block 18, the side wall of the rotating block 18 is provided with a rotating ring 20 matched with the grooves 19, the rotating ring 20 is rotatably connected in the grooves 19, and gaps for facilitating the movement of lubricating grease are arranged between the side wall of the rotating block 18 and the inner wall of the bearing support frame 5 and between the side wall of the rotating ring 20 and the inner wall of the grooves 19.

[0031] In use, the lubricating grease input through the grease nipple 15 moves along the gaps between the side wall of the rotating block 18 and the inner wall of the bearing support frame 5 and between the side wall of the rotating ring 20 and the inner wall of the grooves 19 under the action of pressure, so as to realize a certain degree of sealing.

[0032] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model.

Claims

1. A self-lubricating leakage-free magnetic force fan device, comprising a motor (17) and two bearings (11), a connecting frame (1) is installed on the housing of the output end of the motor (17), a bearing support frame (5) is installed at the end of the connecting frame (1) away from the motor (17), a rotating shaft (7) is arranged in the bearing support frame (5), the side wall of the rotating shaft (7) is rotatably connected with the inner wall of the bearing support frame (5) through the two bearings (11), and a fan blade (13) is installed at the end of the rotating shaft (7) away from the motor (17) and passes through the bearing support frame (5), characterized in that, The inside of the connecting frame (1) is provided with a magnetic drive mechanism for driving the rotation of the rotating shaft (7), and a lubricating mechanism is arranged between the two bearings (11) for lubricating the bearings (11).

2. A self-lubricating, leak-free magnetic blower device according to claim 1, characterized in that The magnetic drive mechanism comprises an isolation frame (3) and a pressing sleeve (6), the isolation frame (3) is installed at one end of the bearing support frame (5) close to the motor (17), the isolation frame (3) is arranged in the inside of the connecting frame (1), the output end of the motor (17) is provided with an outer magnetic rotor (2) through the connecting frame (1), the outer magnetic rotor (2) is arranged between the isolation frame (3) and the connecting frame (1), one end of the rotating shaft (7) close to the motor (17) is provided with an inner magnetic rotor (4) matched with the outer magnetic rotor (2) through the pressing sleeve (6) and the screw, the inner magnetic rotor (4) is arranged in the inside of the isolation frame (3), and the bottom of the isolation frame (3) is oval.

3. A self-lubricating, leak-free magnetic blower device according to claim 2, wherein, An O-ring (12) is arranged at the connection between the isolation frame (3) and the bearing support frame (5) for sealing.

4. A self-lubricating, leak-free magnetic blower device as defined in claim 1, wherein, The lubricating mechanism comprises an intermediate pad sleeve (8), the intermediate pad sleeve (8) is installed on the inner wall of the bearing support frame (5) between the two bearings (11), a ball valve (14) is installed on the side wall of the bearing support frame (5), a grease nipple (15) is installed on the input end of the ball valve (14), the grease nipple (15), the ball valve (14) and the inside of the bearing support frame (5) are communicated with each other, and an oil seal (16) is arranged in the open inside of the bearing support frame (5) close to the fan blade (13) for sealing the bearing support frame (5) and the rotating shaft (7).

5. A self-lubricating, leak-free magnetic blower device as defined in claim 4, wherein, A hole retainer ring (9) is installed on the inner wall of the bearing support frame (5) between the oil seal (16) and the bearing (11), the hole retainer ring (9) is arranged close to the bearing (11), an axle retainer ring (10) is arranged in the inside of the hole retainer ring (9) for blocking the bearing (11), and the axle retainer ring (10) is sleeved on the side wall of the rotating shaft (7).

6. A self-lubricating, leak-free magnetic blower device as defined in claim 4, wherein, The intermediate pad sleeve (8) in the lubricating mechanism is replaced by a rotating block (18), the rotating block (18) is installed on the side wall of the rotating shaft (7) between the two bearings (11), a plurality of grooves (19) are formed in the inner wall of the bearing support frame (5) opposite to the side wall of the rotating block (18), a rotating ring (20) is installed on the side wall of the rotating block (18) and matched with the grooves (19), the rotating ring (20) is rotatably connected in the grooves (19), and gaps are arranged between the side wall of the rotating block (18) and the inner wall of the bearing support frame (5) and between the side wall of the rotating ring (20) and the inner wall of the grooves (19) to facilitate the movement of lubricating grease.

7. A self-lubricating, leak-free magnetic blower device as defined in claim 1, wherein, The side walls of the connecting frame (1) and the bearing support frame (5) are both provided with heat dissipation fins for facilitating heat dissipation.

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