Magnetic fluid sealing transmission device with labyrinth dustproof structure
By introducing a labyrinth dustproof structure into the magnetohydrodynamic sealed transmission device, the wear problem caused by dust ingress is solved, achieving dust protection and extended service life, making it suitable for sealed transmission devices in dusty environments.
Patent Information
- Application Number
- CN202520146902.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2035-01-22
AI Technical Summary
When the magnetohydrodynamic sealing transmission device is used in a dusty environment, dust can easily enter through the gap between the housing and the rotating shaft, causing wear on internal parts and shortening its service life.
It adopts a maze dustproof structure, which forms a maze structure by interlocking the outer and inner maze dustproof rings to prevent dust from entering, protect internal components, and extend service life.
It effectively prevents dust from entering, avoids wear and tear, extends service life, and does not generate frictional dust pollution, making it suitable for process environments with high cleanliness requirements.
Smart Images
Figure CN223609313U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to transmission device technical field, concretely is a labyrinth dustproof structure magnetic fluid seal transmission device. BACKGROUND
[0002] Magnetic fluid seal transmission device is based on the characteristic of magnetic fluid, under the action of magnetic field, magnetic fluid forms sealing ring, thereby preventing gas or liquid leakage, simultaneously, the device can also transmit rotary motion into vacuum container or other environment needing sealing, realizes oil leakage, no leakage sealing effect, and eliminates gas leakage and pollution, in the prior art, when magnetic fluid seal transmission device is used in the dust environment of bad process environment, dust is easy to enter the inside from the gap between the shell and the rotating shaft, causes internal component wear, greatly shortens the service life. SUMMARY
[0003] In view of the defects of the prior art, the utility model provides a labyrinth dustproof structure magnetic fluid seal transmission device, solves the problem that when the magnetic fluid seal transmission device is used in the dust environment of bad process environment, dust is easy to enter the inside from the gap between the shell and the rotating shaft, causes internal component wear, greatly shortens the service life.
[0004] To achieve the above object, the utility model is realized by the following technical scheme: a labyrinth dustproof structure magnetic fluid seal transmission device, including flange shell, the rotating shaft is rotatably connected in the flange shell, one end of the flange shell is fixedly connected with end cover, the rotating shaft is equipped with the labyrinth dustproof mechanism with the flange shell away from the one end of end cover;
[0005] The labyrinth dustproof mechanism includes the labyrinth dustproof outer ring and the labyrinth dustproof inner ring, a plurality of recesses are formed on the labyrinth dustproof outer ring, a plurality of protrusions are arranged on the labyrinth dustproof inner ring, and the plurality of protrusions are matched with the plurality of recesses.
[0006] Preferably, the flange shell is rotatably connected with the rotating shaft through two bearings, and the first retainer ring and the second retainer ring are arranged on one side of the two bearings, respectively, so that the first retainer ring and the second retainer ring can limit and fix the two bearings.
[0007] Preferably, the labyrinth dustproof outer ring is fixedly installed on the inner wall of the flange shell, and the labyrinth dustproof inner ring is fixedly installed on the rotating shaft, so that the labyrinth dustproof outer ring and the labyrinth dustproof inner ring can rotate relative to each other.
[0008] Preferably, the labyrinth dustproof outer ring and the labyrinth dustproof inner ring are mutually embedded by a plurality of recesses and protrusions, so that a labyrinth structure can be formed between the labyrinth dustproof outer ring and the labyrinth dustproof inner ring, thereby preventing dust from entering the flange shell from multiple directions and avoiding wear.
[0009] Preferably, the end cover is detachably connected with the flange shell through a plurality of bolts, so that the flange shell can be conveniently disassembled and installed.
[0010] Preferably, the rotating shaft extends to the outside of the flange shell at both ends, so that the rotating shaft can be used for transmission.
[0011] The utility model provides a labyrinth dustproof structure magnetic fluid sealing transmission device.
[0012] The labyrinth dustproof structure magnetic fluid sealing transmission device, through the mutual embedding of the plurality of grooves and protrusions of the labyrinth dustproof outer ring and the labyrinth dustproof inner ring, has the continuous gap between the labyrinth dustproof outer ring and the labyrinth dustproof inner ring, can form the labyrinth structure between the labyrinth dustproof outer ring and the labyrinth dustproof inner ring, can hinder the dust from entering the inside of the flange shell from multiple directions, avoids the abrasion, protects the sealing area and the rotating structure, effectively prolongs the service life, and the self does not produce the friction and produces the dust pollution, is also applicable to the process with the cleanliness requirement. BRIEF DESCRIPTION OF DRAWINGS
[0013] Fig. 1 It is the whole structure schematic diagram of the utility model;
[0014] Fig. 2 It is the whole structure reverse surface schematic diagram of the utility model;
[0015] Fig. 3 It is the whole structure cross section schematic diagram of the utility model.
[0016] In the drawing: 1, flange shell;2, rotating shaft;3, end cover;4, labyrinth dustproof outer ring;5, labyrinth dustproof inner ring;6, first baffle;7, second baffle;8, bearing. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to 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 fall within the scope of protection of the utility model.
[0018] Please refer to Figs. 1-3The utility model provides a technical scheme: a labyrinth dustproof structure magnetic fluid seal transmission device, including flange shell 1, the inside rotatory connection of flange shell 1 has the shaft 2, and the shaft 2 both ends are through flange shell 1 and extend to the outside of flange shell 1, so that can utilize the transmission of shaft 2, and the one end fixed connection of flange shell 1 has end cover 3, and end cover 3 is detachably connected with flange shell 1 through a plurality of bolts, can conveniently remove and install flange shell 1, and the one end of shaft 2 and flange shell 1 away from end cover 3 is equipped with the labyrinth dustproof mechanism, and flange shell 1 is rotatably connected with the shaft 2 through two bearings 8, and one side of two bearings 8 is equipped with first baffle ring 6 and second baffle ring 7 respectively, can utilize first baffle ring 6 and second baffle ring 7 and limit and the fixed effect of two bearings 8.
[0019] The labyrinth dustproof mechanism includes a labyrinth dustproof outer ring 4 and a labyrinth dustproof inner ring 5. The labyrinth dustproof outer ring 4 has a plurality of grooves. The labyrinth dustproof inner ring 5 has a plurality of protrusions. The plurality of protrusions match the plurality of grooves. The labyrinth dustproof outer ring 4 is fixedly installed on the inner wall of the flange shell 1. The labyrinth dustproof inner ring 5 is fixedly installed on the shaft 2. The labyrinth dustproof outer ring 4 and the labyrinth dustproof inner ring 5 can rotate relative to each other. The labyrinth dustproof outer ring 4 and the labyrinth dustproof inner ring 5 are mutually embedded by the plurality of grooves and the plurality of protrusions. The labyrinth dustproof outer ring 4 and the labyrinth dustproof inner ring 5 have a continuously winding gap. The labyrinth dustproof outer ring 4 and the labyrinth dustproof inner ring 5 can form a labyrinth structure. Dust can be prevented from entering the inside of the flange shell 1 from multiple directions, thereby avoiding abrasion.
[0020] When working, the labyrinth dustproof outer ring 4 is fixedly installed on the inner wall of the flange shell 1. The labyrinth dustproof inner ring 5 is fixedly installed on the shaft 2. The labyrinth dustproof outer ring 4 and the labyrinth dustproof inner ring 5 are mutually embedded by the plurality of grooves and the plurality of protrusions. The labyrinth dustproof outer ring 4 and the labyrinth dustproof inner ring 5 have a continuously winding gap. The labyrinth dustproof outer ring 4 and the labyrinth dustproof inner ring 5 can form a labyrinth structure. Dust can be prevented from entering the inside of the flange shell 1 from multiple directions, thereby avoiding abrasion. The sealing area and the rotating structure are protected. The service life is effectively prolonged. The utility model will not produce dust pollution due to friction. The utility model is suitable for processes with cleanliness requirements.
[0021] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art.
Claims
1. A labyrinth dust-proof structure magnetic fluid seal transmission device comprising a flange housing (1), characterized in that: The flange shell (1) is rotatably connected with a rotating shaft (2), one end of the flange shell (1) is fixedly connected with an end cover (3), and the rotating shaft (2) is provided with a labyrinth dustproof mechanism at an end away from the end cover (3). The labyrinth dustproof mechanism comprises a labyrinth dustproof outer ring (4) and a labyrinth dustproof inner ring (5), a plurality of grooves are formed in the labyrinth dustproof outer ring (4), and a plurality of protrusions are arranged on the labyrinth dustproof inner ring (5) and matched with the grooves.
2. A labyrinth dust-proof structure magnetic fluid seal transmission device according to claim 1, characterized in that: The flange shell (1) is rotatably connected with the rotating shaft (2) through two bearings (8), and the two bearings (8) are respectively provided with a first retainer (6) and a second retainer (7) on one side.
3. A labyrinth dust-proof structure magnetic fluid seal transmission device according to claim 1, characterized in that: The labyrinth dustproof outer ring (4) is fixedly installed on the inner wall of the flange shell (1), and the labyrinth dustproof inner ring (5) is fixedly installed on the rotating shaft (2).
4. A labyrinth dust-proof structure magnetic fluid seal transmission device according to claim 1, characterized in that: The labyrinth dustproof outer ring (4) and the labyrinth dustproof inner ring (5) are embedded with each other through the grooves and the protrusions.
5. A labyrinth dust-proof structure magnetic fluid seal transmission device according to claim 1, characterized in that: The end cover (3) and the flange shell (1) are detachably connected through a plurality of bolts.
6. A labyrinth dust-proof structure magnetic fluid seal transmission device according to claim 1, characterized in that: The rotating shaft (2) penetrates through the flange shell (1) and extends to the outside of the flange shell (1) at both ends.