Magnetofluid sealing transmission device with self-cleaning purging structure

Abstract

The utility model discloses a magnetofluid sealing transmission device with a self-cleaning purging structure, which comprises a rotating shaft and a flange seat, a labyrinth dustproof ring is fixedly sleeved in an inner cavity of the flange seat, an exhaust port and an air inlet are respectively arranged in the inner cavity of the flange seat, the labyrinth dustproof ring consists of a labyrinth dustproof outer ring and a labyrinth dustproof inner ring, and the labyrinth dustproof outer ring is provided with an air inlet. A labyrinth dustproof channel is arranged between the labyrinth dustproof outer ring and the labyrinth dustproof inner ring, one end of the exhaust port and one end of the air inlet penetrate through the surface of the labyrinth dustproof outer ring and are communicated with the labyrinth dustproof channel, and ports of the exhaust port and the air inlet extend to the surface of the flange seat. According to the magnetofluid sealing transmission device with the self-cleaning purging structure, the self-cleaning purging function is designed, inert gas can be introduced from the gas inlet, dust accumulated in a labyrinth dustproof ring area is discharged from the gas outlet, the maintenance period of equipment parts is effectively shortened by means of the self-cleaning function of magnetofluid, and cost reduction and efficiency improvement are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to magnetic fluid sealing transmission device technical field, concretely is a kind of self-cleaning blow cleaning structure magnetic fluid sealing transmission device. BACKGROUND

[0002] Magnetic fluid sealing transmission device is a kind of sealing device using magnetic field effect under the action of magnetic field, magnetic fluid fills annular space, forms a series of "O type sealing ring", to achieve the effect of sealing.

[0003] In existing magnetic fluid sealing transmission device, effective self-cleaning blow cleaning function is often lacked, dust is easily accumulated in dustproof area, and then the normal operation of device and service life are influenced, with the increase of use time, equipment components need to be maintained frequently due to dust accumulation problem, cost and manpower input are increased, which is not conducive to cost reduction and efficiency improvement. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of prior art, the utility model provides a kind of self-cleaning blow cleaning structure magnetic fluid sealing transmission device, solve the problem that effective self-cleaning blow cleaning function is often lacked in existing magnetic fluid sealing transmission device, dust is easily accumulated in dustproof area, and then the normal operation of device and service life are influenced, with the increase of use time, equipment components need to be maintained frequently due to dust accumulation problem, cost and manpower input are increased, which is not conducive to cost reduction and efficiency improvement.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a kind of self-cleaning blow cleaning structure magnetic fluid sealing transmission device, a kind of self-cleaning blow cleaning structure magnetic fluid sealing transmission device, including rotating shaft and flange seat, the inner cavity of the flange seat is fixedly sleeved with labyrinth dustproof ring, and the inner cavity of the flange seat is respectively provided with exhaust port and air inlet;

[0006] The labyrinth dustproof ring is composed of labyrinth dustproof outer ring and labyrinth dustproof inner ring, and a labyrinth dustproof channel is arranged between the labyrinth dustproof outer ring and the labyrinth dustproof inner ring.

[0007] One end of the exhaust port and the air inlet penetrates the surface of the labyrinth dustproof outer ring and communicates with the labyrinth dustproof channel, and the port of the exhaust port and the air inlet extends to the surface of the flange seat.

[0008] Preferably, the inner cavity of the flange seat is symmetrically rotatably sleeved with a bearing, and the opposite sides of the bearing are provided with a spacer.

[0009] Preferably, an end cover is fixedly installed at one end of the flange seat by bolts.

[0010] Preferably, a sealing element is arranged between the two spacers.

[0011] Preferably, the two said partition rings and the sealing member are fixedly sleeved with the inner cavity of the flange seat.

[0012] Preferably, the rotating shaft is rotatably sleeved in the inner cavities of the end cover, the bearing, the labyrinth dustproof ring, the partition ring and the sealing member.

[0013] The utility model provides a kind of self-cleaning blow cleaning structure magnetic fluid sealing transmission device.Compared with prior art, it has the following beneficial effects:

[0014] The self-cleaning blow cleaning structure magnetic fluid sealing transmission device, by designing self-cleaning blow cleaning function, inert gas can be introduced from the air inlet, and the dust accumulated in the labyrinth dustproof ring area is discharged from the exhaust port, and with the help of the self-cleaning function of magnetic fluid, the maintenance cycle of equipment components is effectively reduced, and cost reduction and efficiency increase are realized. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the structure schematic diagram of the utility model;

[0016] Fig. 2 It is the structure split schematic diagram of the utility model;

[0017] Fig. 3 It is the structure cross-sectional schematic diagram of the utility model.

[0018] In the drawing: 1, rotating shaft;2, flange seat;3, end cover;4, bearing;5, labyrinth dustproof ring;51, labyrinth dustproof outer ring;52, labyrinth dustproof inner ring;53, labyrinth dustproof channel;6, partition ring;7, sealing member;8, exhaust port;9, air inlet. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0020] Please refer to Figs. 1-3The utility model provides a technical scheme: a kind of self-cleaning blow-down structure magnetic fluid sealing transmission device, including shaft 1 and flange seat 2, the inner cavity of flange seat 2 is symmetrically rotationally sleeved with bearing 4, and the opposite side of bearing 4 is provided with spacer ring 6, and one end of flange seat 2 is fixedly installed with end cover 3 by bolt, sealing element 7 is arranged between two spacer rings 6, two spacer rings 6 and sealing element 7 are fixedly sleeved with the inner cavity of flange seat 2, shaft 1 is rotationally sleeved in the inner cavity of end cover 3, bearing 4, labyrinth dustproof ring 5, spacer ring 6 and sealing element 7, wherein end cover 3, bearing 4, labyrinth dustproof ring 5, spacer ring 6 and sealing element 7 are mutually adhered in the inner cavity of flange seat 2, there is no gap, in addition, sealing element 7 is composed of pole shoe and permanent magnet, and sealing effect is achieved, and spacer ring 6 is stainless steel material, and rotation accuracy can be improved and strength can be increased by bearing 4.

[0021] The inner cavity of flange seat 2 is fixedly sleeved with labyrinth dustproof ring 5, and the inner cavity of flange seat 2 is respectively provided with exhaust port 8 and air inlet 9, labyrinth dustproof ring 5 is composed of labyrinth dustproof outer ring 51 and labyrinth dustproof inner ring 52, and labyrinth dustproof passage 53 is arranged between labyrinth dustproof outer ring 51 and labyrinth dustproof inner ring 52, one end of exhaust port 8 and air inlet 9 penetrates the surface of labyrinth dustproof outer ring 51 and is communicated with labyrinth dustproof passage 53, and the port of exhaust port 8 and air inlet 9 extends to the surface of flange seat 2, so that air inlet 9 is used to introduce inert gas, and labyrinth dustproof passage 53 is used as inert gas flow channel, and exhaust port 8 discharges the dust cleaned by labyrinth dustproof ring 5, wherein the contact interlayer of labyrinth dustproof outer ring 51 and labyrinth dustproof inner ring 52 and the surface of shaft 1 is easy to cause dust to enter and accumulate, and the contact interlayer of labyrinth dustproof outer ring 51 and labyrinth dustproof inner ring 52 and the surface of shaft 1 is the contact interlayer of labyrinth dustproof outer ring 51 and labyrinth dustproof inner ring 52 and the surface of shaft 1 in the flow of inert gas entering labyrinth dustproof passage 53, so that the dust in the contact interlayer can be discharged.

[0022] When working or using, inert gas is introduced through air inlet 9, so that the dust accumulated in labyrinth dustproof outer ring 51 and labyrinth dustproof inner ring 52 is discharged from exhaust port 8, and the maintenance cycle of equipment components is reduced by the cleaning function of magnetic fluid itself, and cost is reduced and efficiency is increased.

[0023] It is to be noted that, in the present document, relational terms such as first and second and the like can be 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. Moreover, 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 can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0024] While embodiments of the present application have been shown and described herein, it is to be understood that the application is not limited to these embodiments. Rather, many modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the present application as defined by the appended claims and their equivalents.

Claims

1. A self-cleaning purge structure magnetic fluid seal transmission device, comprising a rotating shaft (1) and a flange base (2), characterized in that: The inner cavity of the flange seat (2) is fixedly sleeved with a labyrinth dustproof ring (5), and the inner cavity of the flange seat (2) is respectively provided with an exhaust port (8) and an air inlet (9); The labyrinth dustproof ring (5) is composed of a labyrinth dustproof outer ring (51) and a labyrinth dustproof inner ring (52), and a labyrinth dustproof channel (53) is arranged between the labyrinth dustproof outer ring (51) and the labyrinth dustproof inner ring (52); One end of the exhaust port (8) and the air inlet (9) penetrates the surface of the labyrinth dustproof outer ring (51) and communicates with the labyrinth dustproof channel (53), and the port of the exhaust port (8) and the air inlet (9) extends to the surface of the flange seat (2).

2. A self-cleaning purge structure MHD sealing transmission device according to claim 1, characterized in that: The inner cavity of the flange seat (2) is fixedly sleeved with a bearing (4), and the opposite side of the bearing (4) is provided with a partition ring (6).

3. A self-cleaning purge structure MHD sealing transmission device according to claim 2, characterized in that: One end of the flange seat (2) is fixedly installed with an end cover (3) through bolts.

4. A self-cleaning purge structure MHD sealing transmission device according to claim 2, characterized in that: Two partition rings (6) are arranged between the two partition rings (6) and the sealing element (7).

5. A self-cleaning purge structure MHD sealing transmission device according to claim 4, characterized in that: The inner cavity of the flange seat (2) is fixedly sleeved with a bearing (4), and the opposite side of the bearing (4) is provided with a partition ring (6).

6. A self-cleaning purge structure MHD seal transmission device according to claim 1, characterized in that: The rotating shaft (1) is rotatably sleeved in the inner cavities of the end cover (3), the bearing (4), the labyrinth dustproof ring (5), the partition ring (6) and the sealing element (7).

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