CN218598815U

CN218598815U - Dust protected magnetic current body sealing device

Info

Publication number: CN218598815U
Application number: CN202222724486.6U
Authority: CN
Inventors: 汤文斌; 罗锡光
Original assignee: ZHUZHOU JOYSING TECHNOLOGY DEVELOPMENT CO LTD
Current assignee: ZHUZHOU JOYSING TECHNOLOGY DEVELOPMENT CO LTD
Priority date: 2022-10-15
Filing date: 2022-10-15
Publication date: 2023-03-10
Anticipated expiration: 2032-10-15

Abstract

The utility model discloses a dust protected magnetic current body sealing device, including the casing, be equipped with dustproof mechanism and sealing mechanism in the casing, dustproof mechanism can prevent dust, avoids the interference of dust, and sealing mechanism can accomplish sealed function, and sealing mechanism includes two bearings of placing in the casing, and the bearing can guarantee that the pivot normally rotates, has placed two magnetic spacers between two bearings, and the magnetic spacer can prevent that the pivot from being magnetized, the utility model discloses flabellum that sets up in dustproof mechanism can be fixed in the pivot through magnetism, makes when the pivot rotates, and the flabellum rotates and forms the air current, and the dust that will enter from the casing outside is rolled and leaves in the casing, reduces the entering of dust, thereby prevents dust, and can also drive the dust originally in the casing to leave simultaneously in dustproof; due to the design of the fan blades, the driving of a power mechanism is not needed, and the maintenance cost is reduced; traditional dust ring still needs regularly to be changed and clear up, through the design of flabellum, can reduce cost.

Description

Dust protected magnetic current body sealing device

Technical Field

The utility model relates to a dustproof technical field specifically is a dust protected magnetic current body sealing device.

Background

The existing magnetic fluid sealing device is only suitable for working in a place with a cleaner environment, and if the environment has more dust, the dust can enter the magnetic fluid sealing device, so that the dust can clamp the rotating shaft, the magnetic fluid sealing device cannot rotate, and the dust can be adhered to the surface of the magnetic fluid, so that the property of the magnetic fluid is changed, and the sealing effect of the magnetic fluid sealing device is influenced;

to this end, utility model patent publication No. CN202301966U discloses a dust protected magnetic fluid sealing device, includes: the device comprises a rotating shaft, a sealing pair, a first bearing, a second bearing, a dust ring and a shell, wherein the sealing pair is internally provided with a rotating shaft mounting hole; the first bearing, the sealing pair and the second bearing are sequentially arranged in an inner hole of the shell; the rotating shaft is sequentially embedded into the inner ring of the first bearing, the rotating shaft mounting hole of the sealing pair and the inner ring of the second bearing; the dustproof ring is arranged on the rotating shaft and is arranged on the outer side of the first bearing and/or the outer side of the second bearing;

but this utility model structure is complicated, and the dust ring still need regularly change and clear up to lead to maintaining troublesome, the maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dust protected magnetic fluid sealing device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a dustproof magnetic fluid sealing device comprises a shell, wherein a dustproof mechanism and a sealing mechanism are arranged in the shell, the dustproof mechanism can prevent dust and avoid interference of dust, and the sealing mechanism can complete a sealing function;

the sealing mechanism comprises two bearings arranged in the shell, the bearings can ensure the normal rotation of the rotating shaft, two magnetism isolating sleeves are arranged between the two bearings, the magnetism isolating sleeves can prevent the rotating shaft from being magnetized, and two magnetic conducting blocks are arranged between the two magnetism isolating sleeves;

a dustproof ring is placed in a groove formed in each magnetic conduction block, the dustproof ring can seal the shell, a permanent magnet is placed between the two magnetic conduction blocks, and a plurality of magnetic fluids are arranged on the magnetic conduction blocks and the permanent magnet close to the rotating shaft part;

the casing threaded connection has the closing cap, the closing cap with be equipped with the packing ring between the casing, the packing ring can fasten the casing with the closing cap, the dust ring the permanent magnet the magnetic current body the cooperation pivot of magnetic conduction piece forms inclosed.

Preferably, the dustproof mechanism comprises a limiting block connected with the shell in a sliding manner, the limiting block is fixedly connected with a sleeve, the sleeve is rotatably connected with a rolling ball, the rolling ball can slide on the inner wall of the shell, and the sleeve is connected with a sliding shaft in a sliding manner;

preferably, a spring is fixedly connected between the sliding shaft and the sleeve, the sliding shaft is fixedly connected with fan blades, and the sliding shaft is fixedly connected with an electromagnet in the sleeve.

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

the fan blades arranged in the dustproof mechanism can be fixed on the rotating shaft through magnetism, so that when the rotating shaft rotates, the fan blades rotate to form air flow, dust entering from the outside of the shell is rolled to leave the shell, the entering of the dust is reduced, the dust is prevented, and the original dust in the shell can be driven to leave while the dust is prevented;

the fan blades are designed without being driven by a power mechanism, so that the structure is simple, the weight is reduced, the volume is reduced, and the maintenance cost is reduced;

traditional dust ring still needs regularly to be changed and clear up, through the design of flabellum, can reduce cost.

Drawings

FIG. 1 is a schematic view of the appearance structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a partially enlarged view of the dust-proof mechanism of FIG. 2 according to the present invention;

FIG. 4 is a schematic view of a partial section of the dustproof mechanism of the present invention;

FIG. 5 is a schematic view of the outer appearance of the dustproof mechanism of the present invention;

FIG. 6 is a schematic top view of the dustproof mechanism of the present invention;

FIG. 7 is an enlarged schematic view of the dustproof mechanism of the present invention;

fig. 8 is a schematic top view of the structure of fig. 7 according to the present invention.

In the figure: 10. a housing; 11. a closure cap; 12. a gasket; 13. a bearing; 14. a dust ring; 15. a magnetic fluid; 16. a permanent magnet; 17. a magnetic isolation sleeve; 18. a sleeve; 19. a fan blade; 20. a limiting block; 21. a sliding shaft; 22. rolling a ball; 23. an electromagnet; 24. a spring; 25. a dust-proof mechanism; 26. a sealing mechanism; 27. a magnetic conduction block.

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 efforts all belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-8, the present invention provides a technical solution: a dustproof magnetic fluid sealing device comprises a shell 10, wherein a dustproof mechanism 25 and a sealing mechanism 26 are arranged in the shell 10, the dustproof mechanism 25 can prevent dust and avoid interference of dust, and the sealing mechanism 26 can complete a sealing function;

the sealing mechanism 26 comprises two bearings 13 arranged in the housing 10, the bearings 13 can ensure the normal rotation of the rotating shaft, two magnetic isolation sleeves 17 are arranged between the two bearings 13, the magnetic isolation sleeves 17 can prevent the rotating shaft from being magnetized, two magnetic conduction blocks 27 are arranged between the two magnetic isolation sleeves 17, and dust rings 14 are arranged in grooves formed in the magnetic conduction blocks 27;

dust ring 14 can seal casing 10, two a permanent magnet 16 has been placed between the magnetic conduction piece 27, is close to the pivot portion the magnetic conduction piece 27 with permanent magnet 16 is equipped with a plurality of magnetic fluids 15, casing 10 threaded connection has closing cap 11, closing cap 11 with be equipped with packing ring 12 between the casing 10, packing ring 12 can fasten casing 10 with closing cap 11, dust ring 14 permanent magnet 16 magnetic fluids 15 magnetic conduction piece 27 cooperation pivot forms inclosed.

Example 2:

referring to fig. 2-8, embodiment 2 is different from embodiment 1 in that:

the dustproof mechanism 25 comprises a limiting block 20 connected with the shell 10 in a sliding manner, the limiting block 20 is fixedly connected with a sleeve 18, the sleeve 18 is rotatably connected with a rolling ball 22, the rolling ball 22 can slide on the inner wall of the shell 10, and the sleeve 18 is connected with a sliding shaft 21 in a sliding manner;

a spring 24 is fixedly connected between the sliding shaft 21 and the sleeve 18, the sliding shaft 21 is fixedly connected with a fan blade 19, and the sliding shaft 21 is fixedly connected with an electromagnet 23 in the sleeve 18.

The working principle is as follows:

opening the closing cover 11, combining the rotating shaft and the bearing 13, the magnetism isolating sleeve 17, the dust ring 14, the permanent magnet 16, the magnetic fluid 15 and the magnetic conduction block 27 in the shell 10, and then putting the combined components into the shell 10, wherein the dust ring 14, the magnetic fluid 15, the permanent magnet 16 and the magnetic conduction block 27 are matched with the rotating shaft to form a closed component;

the bearing 13 does not influence the rotation of the rotating shaft, and after the rotating shaft is placed, the sealing cover 11 penetrates through the rotating shaft and is matched, sealed and fixed with the shell 10 through threaded rotation;

then the electromagnet 23 stops, under the action of the spring 24, the sliding shaft 21 approaches to the rotating shaft, so that the fan blade 19 contacts with the rotating shaft, and then the magnetic attraction carried by the fan blade 19 is fixed on the rotating shaft;

environmental dust entering volume is few when the pivot does not rotate, and most is blockked outside casing 10, if the pivot rotates this moment to drive flabellum 19 and rotate, thereby drive sliding shaft 21 and rotate, thereby drive sleeve 18 and rotate, flabellum 19 rotates, forms the air current, thereby can make the dust go out from casing 10's import, and at pivot pivoted in-process, reduce the trend that the dust got into.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A dust protected magnetic fluid sealing device, includes casing (10), its characterized in that: a dustproof mechanism (25) and a sealing mechanism (26) are arranged in the shell (10), the dustproof mechanism (25) can prevent dust, interference of dust is avoided, and the sealing mechanism (26) can complete a sealing function;

sealing mechanism (26) include two bearings (13) of placing in casing (10), bearing (13) can guarantee that the pivot normally rotates, two place two magnetism proof covers (17) between bearing (13), magnetism proof cover (17) can prevent that the pivot from being magnetized.

2. The dustproof magnetic fluid sealing device according to claim 1, wherein: two magnetic conduction blocks (27) have been placed between two magnetism proof covers (17), dust ring (14) have been placed to the inslot that magnetic conduction block (27) were equipped with, dust ring (14) can seal casing (10).

3. The dustproof magnetic fluid sealing device according to claim 2, wherein: a permanent magnet (16) is arranged between the two magnetic conduction blocks (27), and a plurality of magnetic fluids (15) are arranged on the magnetic conduction blocks (27) close to the rotating shaft part and the permanent magnet (16).

4. The dustproof magnetic fluid sealing device according to claim 3, wherein: casing (10) threaded connection has closing cap (11), closing cap (11) with be equipped with packing ring (12) between casing (10), packing ring (12) can be fastened casing (10) with closing cap (11), dust ring (14) permanent magnet (16) magnetic current body (15) magnetic conduction piece (27) cooperation pivot forms inclosed.

5. The dustproof magnetic fluid sealing device according to claim 1, wherein: dustproof mechanism (25) include casing (10) sliding connection's stopper (20), stopper (20) fixedly connected with sleeve (18), sleeve (18) rotate and are connected with spin (22).

6. The dustproof magnetic fluid sealing device according to claim 5, wherein: the rolling ball (22) can slide on the inner wall of the shell (10), and the sleeve (18) is connected with a sliding shaft (21) in a sliding mode.

7. The dustproof magnetic fluid sealing device according to claim 6, wherein: a spring (24) is fixedly connected between the sliding shaft (21) and the sleeve (18).

8. The dustproof magnetic fluid sealing device according to claim 6, wherein: the sliding shaft (21) is fixedly connected with fan blades (19), and the sliding shaft (21) is fixedly connected with an electromagnet (23) in the sleeve (18).