CN103244689A - Magnetic liquid sealing device used for multi-channel gas delivery between rotating system and static system - Google Patents
Magnetic liquid sealing device used for multi-channel gas delivery between rotating system and static system Download PDFInfo
- Publication number
- CN103244689A CN103244689A CN2013101832388A CN201310183238A CN103244689A CN 103244689 A CN103244689 A CN 103244689A CN 2013101832388 A CN2013101832388 A CN 2013101832388A CN 201310183238 A CN201310183238 A CN 201310183238A CN 103244689 A CN103244689 A CN 103244689A
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- anger
- air inlet
- magnetic fluid
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
A magnetic liquid sealing device used for multi-channel gas delivery between a rotating system and a static system belongs to the sealing field. The device solves the problem that the existing multi-channel gas delivery device can only deliver gas under the condition that no relative movement exists at a gas inlet/outlet and cannot deliver the gas under the condition that relative movement exists at the gas inlet/outlet. The system comprises a rotating shaft, a left shaft sleeve assembly, a right shaft sleeve, a magnetic liquid sealing unit and the like. Due to the fact that the magnetic liquid sealing unit is arranged between annular cavities formed by gas outlet shaft sleeves and the rotating shaft for sealing, the multi-channel gas delivery between the static system and the rotating system of can be achieved, gas mixing between the channels cannot happen, and zero leakage is achieved in the gas delivery process.
Description
Technical field
The invention belongs to field of sealing technology, can realize two multi-channel gas conveyings that relatively rotate between the system.
Background technique
Air transporting arrangement extensively applies to the sealing of fields such as industrial heat exchange, medical science, superconducting generator cooling system.What existing air transporting arrangement was realized mostly is two gas exchanges between the relative stationary system.
The existing air transporting arrangement that relatively rotates between the system, gas leaks serious, is difficult to realize the multi-channel gas conveying.
Magnetic liquid is a kind of stable new function material that is formed in base load liquid by nano level magnetic-particle highly dispersed.Sealing is an important applied field of magnetic liquid.The magnetic fluid sealing technology is because it has zero leakage, does not have the machinery wearing and tearing, and the life-span is long, and advantages of simple structure and simple is used by increasing industry gradually.
The present invention is by adopting magnetic fluid seal device between the part in relative rotation, between static relatively part by seal with elastometic washer, make the present invention can realize the conveying of gas between stationary system and rotation system, and can realize advancing having more more, gas can not disturb in each passage, and gas does not externally leak.Simple and compact for structure, be easy to realize.
Summary of the invention
The technical issues that need to address of the present invention are, the existing air transporting arrangement that relatively rotates between the system, and gas leaks serious, is difficult to realize that multi-channel gas carries.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of magnetic fluid seal device for multi-channel gas conveying between rotation system and the stationary system, this device comprises: rotating shaft, left side air inlet axle sleeve, left side air inlet magnetic fluid sealing assembly, the left side magnetic fluid sealing assembly of giving vent to anger, the left side axle sleeve of giving vent to anger, the first air inlet axle sleeve, the first air inlet magnetic fluid sealing assembly, the first magnetic fluid sealing assembly of giving vent to anger, first axle sleeve of giving vent to anger, the second air inlet axle sleeve, the second air inlet magnetic fluid sealing assembly, the second magnetic fluid sealing assembly of giving vent to anger, second axle sleeve of giving vent to anger, by that analogy to n-1 air inlet axle sleeve, n-1 air inlet magnetic fluid sealing assembly, the n-1 magnetic fluid sealing assembly of giving vent to anger, the n-1 axle sleeve of giving vent to anger, n air inlet axle sleeve, n air inlet magnetic fluid sealing assembly, the n magnetic fluid sealing assembly of giving vent to anger, the n axle sleeve of giving vent to anger, right axle sleeve, right pad, right magnetic fluid sealing assembly, right isolating ring, left bearing, right bearing, first jump ring, second jump ring, the 3rd jump ring, right end cap, left screw, first screw, by that analogy to the n-1 screw, the n screw, left end cap, left isolating ring.
Constituting this device each several part connects:
Left end cap is installed in the rotating shaft, first jump ring is installed in the first jump ring groove of rotating shaft, left bearing is installed in the right-hand member of first jump ring, it is interference fit between left bearing and the rotating shaft, second jump ring is installed in the second jump ring groove of rotating shaft, the left axle sleeve assembly is packed in the rotating shaft, make the left side of the left isolating ring in the left axle sleeve assembly and the right side of left bearing fit, be interference fit between the left air inlet axle sleeve in left bearing and the left bearing assembly, between left axle sleeve assembly and the rotating shaft by the give vent to anger magnetic fluid sealing assembly sealing of the left air inlet magnetic fluid sealing assembly in the left axle sleeve assembly and a left side.The first air inlet axle sleeve in first sleeve assembly is installed in the give vent to anger right-hand member of axle sleeve of a left side in the left axle sleeve assembly, with left screw the first air inlet axle sleeve in first sleeve assembly and the left side in the left axle sleeve assembly axle sleeve of giving vent to anger is connected, between first sleeve assembly and the rotating shaft by the magnetic fluid sealing assembly sealing of giving vent to anger of the first air inlet magnetic fluid sealing assembly and first in first sleeve assembly.The second air inlet axle sleeve in second sleeve assembly is installed in the give vent to anger right-hand member of axle sleeve of first in first sleeve assembly, with first screw axle sleeve of giving vent to anger of first in the second air inlet axle sleeve in second sleeve assembly and first sleeve assembly is connected, between second sleeve assembly and the rotating shaft by the magnetic fluid sealing assembly sealing of giving vent to anger of the second air inlet magnetic fluid sealing assembly and second in second sleeve assembly.By that analogy to the n air inlet axle sleeve in the n sleeve assembly being installed in the give vent to anger right-hand member of axle sleeve of n-1 in the n-1 sleeve assembly, with the n-1 screw n air inlet axle sleeve in the n sleeve assembly and n-1 in the n-1 sleeve assembly axle sleeve of giving vent to anger is connected, between n sleeve assembly and the rotating shaft by the n air inlet magnetic fluid sealing assembly in the n sleeve assembly and the n magnetic fluid sealing assembly sealing of giving vent to anger.Right axle sleeve is installed in the give vent to anger right-hand member of axle sleeve of n in the n sleeve assembly, with the n screw right axle sleeve and n in the n sleeve assembly axle sleeve of giving vent to anger is connected.Right pad is installed in the give vent to anger right-hand member of axle sleeve of n in the n sleeve assembly, right magnetic fluid sealing assembly is installed in the right-hand member of right pad, right isolating ring is installed in the right-hand member of right magnetic fluid sealing assembly, right bearing is installed in the right-hand member of right isolating ring, it is interference fit between right bearing and the rotating shaft, it is interference fit between right bearing and the right axle sleeve, right end cap is installed in the right-hand member of right bearing, between right end cap and the right axle sleeve by being threaded, with left end cap by being threaded in the left air inlet axle sleeve between left end cap and the left air inlet axle sleeve.
Described left axle sleeve assembly comprises: left air inlet axle sleeve, left air inlet pad, left air inlet magnetic fluid sealing assembly, screw, left side air inlet seal ring, the left side pad of giving vent to anger, the left side magnetic fluid sealing assembly of giving vent to anger, the left side axle sleeve of giving vent to anger, the left side seal ring of giving vent to anger, left air inlet disk, the left side dish of giving vent to anger.
The each several part that constitutes this assembly connects: the left side that left air inlet magnetic fluid sealing assembly is installed in left air inlet axle sleeve inner convex platform, left air inlet pad is installed in the left end of left air inlet magnetic fluid sealing assembly, left air inlet disk is welded on the position of opening of left air inlet axle sleeve, left air inlet seal ring is installed in the seal groove of left air inlet axle sleeve right side, the left side magnetic fluid sealing assembly of giving vent to anger is installed in the give vent to anger left side of axle sleeve inner convex platform, a left side, the left side pad of giving vent to anger is installed in the give vent to anger left end of magnetic fluid sealing assembly of a left side, the left side dish of giving vent to anger is welded on the give vent to anger position of opening of axle sleeve of a left side, the left side seal ring of giving vent to anger is installed in a left side and gives vent to anger in the seal groove of axle sleeve right side, the left side axle sleeve of giving vent to anger is installed in the right-hand member of left air inlet axle sleeve, with screw the left side axle sleeve of giving vent to anger is connected formation left axle sleeve assembly with left Intake shaft cover.
Described first sleeve assembly comprises: the first air inlet axle sleeve, the first air inlet pad, the first air inlet magnetic fluid sealing assembly, screw, the first air inlet seal ring, first pad of giving vent to anger, the first magnetic fluid sealing assembly of giving vent to anger, first axle sleeve of giving vent to anger, first seal ring of giving vent to anger, first air inlet disk, first dish of giving vent to anger.
The each several part that constitutes this assembly connects: the left side that the first air inlet magnetic fluid sealing assembly is installed in the first air inlet axle sleeve inner convex platform, the first air inlet pad is installed in the left end of the first air inlet magnetic fluid sealing assembly, first air inlet disk is welded on the position of opening of the first air inlet axle sleeve, the first air inlet seal ring is installed in the seal groove of the first air inlet axle sleeve right side, the first magnetic fluid sealing assembly of giving vent to anger is installed in first left side of giving vent to anger the axle sleeve inner convex platform, first pad of giving vent to anger is installed in first left end of giving vent to anger the magnetic fluid sealing assembly, first dish of giving vent to anger is welded on first position of opening of giving vent to anger axle sleeve, first seal ring of giving vent to anger is installed in
First gives vent to anger in the seal groove of axle sleeve right side, and first axle sleeve of giving vent to anger is installed in the right-hand member of the first air inlet axle sleeve, with screw first axle sleeve of giving vent to anger is connected with first Intake shaft cover, forms first sleeve assembly.
Described first sleeve assembly to the n sleeve assembly is structurally identical, n 〉=0 wherein, and the concrete value of n requires selected according to reality.
Described air inlet magnetic fluid sealing assembly, give vent to anger magnetic fluid sealing assembly and right magnetic fluid sealing assembly comprise: first pole shoe, second pole shoe, by that analogy to the n pole shoe, first permanent magnet, second permanent magnet, by that analogy to the n-1 permanent magnet, first rubber ring, second rubber ring is by that analogy to the n rubber ring.
Constitute this air inlet magnetic fluid sealing assembly, being connected of give vent to anger magnetic fluid sealing assembly and right magnetic fluid sealing assembly: the right side that first permanent magnet is installed in first pole shoe, continue and second pole shoe is installed in the right side of first permanent magnet, second permanent magnet is installed in the right side of second pole shoe, to the right side that the n-1 permanent magnet is installed in the n-1 pole shoe, the n pole shoe is installed in the right side of n-1 permanent magnet by that analogy.Junction plane between adjacent parts all sticks with glue and connects.First rubber seal is installed in the seal groove of first pole shoe, second rubber seal is installed in the seal groove of second pole shoe.To the n rubber seal is installed in the seal groove of n pole shoe, form air inlet magnetic fluid sealing assembly, give vent to anger magnetic fluid sealing assembly and right magnetic fluid sealing assembly by that analogy.Air inlet magnetic fluid sealing assembly, give vent to anger magnetic fluid sealing assembly and right magnetic fluid sealing assembly are identical in structure, n 〉=2 wherein, and the size of n depends on the pressure of gas that device is carried.
The endoporus left end of described left air inlet axle sleeve has screw thread, is used for connecting left end cap.
The endoporus right-hand member of described right axle sleeve has screw thread, is used for connecting right end cap.
Described rotating shaft is distributed with the different inlet hole of (n+1) individual degree of depth, (n+1) the different air outlet hole of the individual degree of depth along 360 degree directions.Can select this 2(n+1 for use according to actual conditions) gas throughput direction and the position in individual hole.The rotating shaft left end can require to process according to the connection device situation, and as at the circumferential installation air-guide disk of axle, at the left end welding flange of axle etc., concrete Placement is seen Figure 18, Figure 19 and Figure 20.
The present invention compares the beneficial effect that has with prior art:
The present invention can realize the conveying of gas between stationary system and rotation system by have the hole of different depth at axle, and can realize the conveying of gas multichannel.Because adopted the sealing of magnetic fluid sealing unit, gas can not disturb in each passage, gas is not externally revealed.Simple and compact for structure, be easy to realize.
Description of drawings
A kind of magnetic fluid sealing dress for multi-channel gas conveying between rotation system and the stationary system of Fig. 1
The structural drawing of putting.
A kind of radially direct figure for hole in the rotating shaft of the magnetic fluid seal device of multi-channel gas conveying between rotation system and the stationary system of Fig. 2.
Fig. 3 left axle sleeve assembly assumption diagram.
Fig. 4 first sleeve assembly structural drawing.
Fig. 5 inlet, outlet magnetic fluid sealing assembly, right magnetic fluid sealing assembly assumption diagram.
A kind of magnetic fluid seal device schematic diagram 1 for multi-channel gas conveying between rotation system and the stationary system of Fig. 6.
A kind of magnetic fluid seal device schematic diagram 2 for multi-channel gas conveying between rotation system and the stationary system of Fig. 7.
A kind of magnetic fluid seal device for multi-channel gas conveying between rotation system and the stationary system of Fig. 8, the schematic diagram 1 when n=0.
A kind of magnetic fluid seal device for multi-channel gas conveying between rotation system and the stationary system of Fig. 9, the schematic diagram 2 when n=0.
A kind of magnetic fluid seal device for multi-channel gas conveying between rotation system and the stationary system of Figure 10, the schematic diagram 1 when n=1.
A kind of magnetic fluid seal device for multi-channel gas conveying between rotation system and the stationary system of Figure 11, the schematic diagram 2 when n=1.
A kind of magnetic fluid seal device for multi-channel gas conveying between rotation system and the stationary system of Figure 12, the schematic diagram 3 when n=1.
A kind of magnetic fluid seal device for multi-channel gas conveying between rotation system and the stationary system of Figure 13, the schematic diagram 1 when n=2.
A kind of magnetic fluid seal device for multi-channel gas conveying between rotation system and the stationary system of Figure 14, the schematic diagram 2 when n=2.
A kind of magnetic fluid seal device for multi-channel gas conveying between rotation system and the stationary system of Figure 15, the schematic diagram 3 when n=2.
A kind of magnetic fluid seal device for multi-channel gas conveying between rotation system and the stationary system of Figure 16, the schematic diagram 4 when n=2.
A kind of magnetic fluid seal device for multi-channel gas conveying between rotation system and the stationary system of Figure 17, the three-dimensional structure sketch when n=2.
The structural drawing of a kind of magnetic fluid seal device of carrying for multi-channel gas between rotation system and the stationary system of Figure 18 when rotating shaft left end mounting flange.
A kind of structural front view of magnetic fluid seal device when rotating shaft circumferentially connects air-guide disk for multi-channel gas conveying between rotation system and the stationary system of Figure 19.
A kind of structure side view of magnetic fluid seal device when rotating shaft circumferentially connects air-guide disk for multi-channel gas conveying between rotation system and the stationary system of Figure 20.
Embodiment
Be that the invention will be further described for embodiment with the accompanying drawing:
A kind of magnetic fluid seal device for multi-channel gas conveying between rotation system and the stationary system, this device comprises: rotating shaft 1, left side air inlet axle sleeve 2, left side air inlet magnetic fluid sealing assembly 3, the left side magnetic fluid sealing assembly 4 of giving vent to anger, the left side axle sleeve 5 of giving vent to anger, the first air inlet axle sleeve 2-1, the first air inlet magnetic fluid sealing assembly 3-1, the first magnetic fluid sealing assembly 4-1 that gives vent to anger, the first axle sleeve 5-1 that gives vent to anger, the second air inlet axle sleeve 2-2, the second air inlet magnetic fluid sealing assembly 3-2, the second magnetic fluid sealing assembly of giving vent to anger, second axle sleeve of giving vent to anger, by that analogy to n-1 air inlet axle sleeve, n-1 air inlet magnetic fluid sealing assembly, the n-1 magnetic fluid sealing assembly of giving vent to anger, the n-1 axle sleeve 5-(n-1 that gives vent to anger), n air inlet axle sleeve 2-n, n air inlet magnetic fluid sealing assembly 3-n, the n magnetic fluid sealing assembly 4-n that gives vent to anger, the n axle sleeve 5-n that gives vent to anger, right axle sleeve 6, right pad 7, right magnetic fluid sealing assembly 8, right isolating ring 9, left bearing 10-1, right bearing 10-2, the first jump ring 11-1, the second jump ring 11-2, the 3rd jump ring 11-3, right end cap 12, left screw 13, the first screw 13-1, by that analogy to n-1 screw 13-(n-1), n screw 13-n, left end cap 14, left isolating ring 15.
Constituting this device each several part connects:
Described left axle sleeve assembly comprises: left air inlet axle sleeve 2, left side air inlet pad 15, left side air inlet magnetic fluid sealing assembly 3, screw 16, left air inlet seal ring 17, the left side pad 18 of giving vent to anger, the left side magnetic fluid sealing assembly 4 of giving vent to anger, the left side axle sleeve 5 of giving vent to anger, the left side seal ring 19 of giving vent to anger, left side air inlet disk 20, a left side are given vent to anger and are coiled 21.
The each several part that constitutes this assembly connects: the left side that left air inlet magnetic fluid sealing assembly 3 is installed in left air inlet axle sleeve 2 inner convex platforms, left air inlet pad 15 is installed in the left end of left air inlet magnetic fluid sealing assembly 3, left air inlet disk 20 is welded on the position of opening of left air inlet axle sleeve 2, left air inlet seal ring 17 is installed in the seal groove of left air inlet axle sleeve 2 right sides, the left side magnetic fluid sealing assembly 4 of giving vent to anger is installed in the give vent to anger left side of axle sleeve 5 inner convex platforms, a left side, the left side pad 18 of giving vent to anger is installed in the give vent to anger left end of magnetic fluid sealing assembly 4 of a left side, the left side dish 21 of giving vent to anger is welded on the give vent to anger position of opening of axle sleeve 5 of a left side, the left side seal ring 19 of giving vent to anger is installed in a left side and gives vent to anger in the seal groove of axle sleeve 5 right sides, the left side axle sleeve 5 of giving vent to anger is installed in the right-hand member of left air inlet axle sleeve 2, with screw 16 left side axle sleeve 5 of giving vent to anger is connected with left air inlet axle sleeve 2, forms the left axle sleeve assembly.
Described first sleeve assembly comprises: the first air inlet axle sleeve 2-1, the first air inlet pad 15-1, the first air inlet magnetic fluid sealing assembly 3-1, screw 16-1, the first air inlet seal ring 17-1, the first pad 18-1 that gives vent to anger, the first magnetic fluid sealing assembly 4-1 that gives vent to anger, the first axle sleeve 5-1 that gives vent to anger, the first seal ring 19-1 that gives vent to anger, the first air inlet disk 20-1, first gives vent to anger coils 21-1.
The each several part that constitutes this assembly connects: the left side that the first air inlet magnetic fluid sealing assembly 3-1 is installed in the first air inlet axle sleeve 2-1 inner convex platform, the first air inlet pad 15-1 is installed in the left end of the first air inlet magnetic fluid sealing assembly 3-1, the first air inlet disk 20-1 is welded on the position of opening of the first air inlet axle sleeve 2-1, the first air inlet seal ring 17-1 is installed in the seal groove of the first air inlet axle sleeve 2-1 right side, the first magnetic fluid sealing assembly 4-1 that gives vent to anger is installed in first left side of giving vent to anger axle sleeve 5-1 inner convex platform, the first pad 18-1 that gives vent to anger is installed in first left end of giving vent to anger magnetic fluid sealing assembly 4-1, the first dish 21-1 that gives vent to anger is welded on first position of opening of giving vent to anger axle sleeve 5-1, the first seal ring 19-1 that gives vent to anger is installed in first and gives vent to anger in the seal groove of axle sleeve 5-1 right side, the first axle sleeve 5-1 that gives vent to anger is installed in the right-hand member of the first air inlet axle sleeve 2-1, with screw 16-1 the first axle sleeve 5-1 that gives vent to anger is connected with the first air inlet axle sleeve 2-1, forms first sleeve assembly.
Described first sleeve assembly to the n sleeve assembly is structurally identical, wherein n 〉=0.
Described air inlet magnetic fluid sealing assembly, give vent to anger magnetic fluid sealing assembly and right magnetic fluid sealing assembly comprise: the first pole shoe 22-1, the second pole shoe 22-2, by that analogy to n pole shoe 22-n, the first permanent magnet 23-1, the second permanent magnet 23-2, by that analogy to n-1 permanent magnet 23-(n-1), the first rubber ring 24-1, the second rubber ring 24-2 is by that analogy to n rubber ring 24-n.
Constitute this air inlet magnetic fluid sealing assembly, being connected of give vent to anger magnetic fluid sealing assembly and right magnetic fluid sealing assembly: the right side that the first permanent magnet 23-1 is installed in the first pole shoe 22-1, continue and the second pole shoe 22-2 is installed in the right side of the first permanent magnet 23-1, the second permanent magnet 23-2 is installed in the right side of the second pole shoe 22-2, to the right side that n-1 permanent magnet 23-(n-1) is installed in n-1 pole shoe 22-(n-1), n pole shoe 22-n is installed in the right side of n-1 permanent magnet 23-(n-1) by that analogy.Junction plane between adjacent parts all sticks with glue and connects.The first rubber seal 24-1 is installed in the seal groove of the first pole shoe 22-1, the second rubber seal 24-2 is installed in the seal groove of the second pole shoe 22-2.To n rubber seal 24-n is installed in the seal groove of n pole shoe 22-n, form air inlet magnetic fluid sealing assembly, give vent to anger magnetic fluid sealing assembly and right magnetic fluid sealing assembly by that analogy.Air inlet magnetic fluid sealing assembly, give vent to anger magnetic fluid sealing assembly and right magnetic fluid sealing assembly are identical in structure, n 〉=2 wherein, and the concrete value of n requires selected according to reality.
The endoporus left end of described left air inlet axle sleeve 2 has screw thread, is used for connecting left end cap.
The endoporus right-hand member of described right axle sleeve 6 has screw thread, is used for connecting left end cap.
Described rotating shaft 1 is distributed with n+1 the inlet hole that the degree of depth is different along 360 degree directions, and n+1 the air outlet hole that the degree of depth is different can be selected this 2(n+1 for use according to actual conditions) gas throughput direction and the position in individual hole.Rotating shaft 1 left end can require to process according to the connection device situation, and as circumferentially connecting air-guide disk at rotating shaft left end mounting flange or in rotating shaft, concrete Placement is seen Figure 18, Figure 19 and Figure 20.
The first pole shoe 22-1 and the second pole shoe 22-2 are until n pole shoe 22-n, and good material such as the electrical pure iron of magnetic property adopted in rotating shaft.
The first permanent magnet 23-1 and the second permanent magnet 23-2 are until n-1 permanent magnet 23-(n-1) select rubidium iron boron for use.
Left and right bearing can be selected the bearing of different model according to the axially loaded size, as deep groove ball bearing or angular contact ball bearing etc.
The kind of magnetic liquid is according to the magnetic liquid of the different base fluids of different choice of sealing gas and ambient temperature, generally when vacuum seal, select fluorocarbons based magnetic liquid or silicone oil based magnetic liquid or two lipid based magnetic liquids for use, select the silicone oil based magnetic liquid under the low temperature for use.
The working principle of this device:
This device has n+1 gas-entered passageway to represent with a0 to an, has n+1 outlet passageway to represent with b0 to bn.
Left side air inlet disk 20 is the entrance of gas-entered passageway a0, the a0 hole is the outlet of gas-entered passageway a0 in the rotating shaft 1, first air inlet disk is the entrance of gas-entered passageway a1, the a1 hole is the outlet of gas-entered passageway a1 in the rotating shaft 1, second air inlet disk is the entrance of gas-entered passageway a2, the a2 hole is the outlet of gas-entered passageway a2 in the rotating shaft 1, be the entrance of gas-entered passageway an by that analogy to the n air inlet disk, the an hole is the outlet of gas-entered passageway an in the rotating shaft 1, the b0 hole is the entrance of outlet passageway b0 in the rotating shaft 1, the left side dish of giving vent to anger 21 be the outlet of outlet passageway b0, and the b1 hole is the entrance of outlet passageway b1 in the rotating shaft 1, and first gives vent to anger coils and be the outlet of outlet passageway b1, the b2 hole is the entrance of outlet passageway b2 in the rotating shaft 1, second dish of giving vent to anger be the outlet of outlet passageway b2, and the bn hole is the entrance of outlet passageway bn to the rotating shaft 1 by that analogy, and n gives vent to anger to coil and is the outlet of outlet passageway bn.
During air inlet, the gas in the stationary system enters gas-entered passageway a0 to an by left air inlet disk 20.Gas among the passage a0 enters left air inlet axle sleeve 2 and the rotating shaft 1 annular gas storage space that forms through the vent on left air inlet disk 20 and the left air inlet axle sleeve 2, passes through the a0 passage in the rotating shaft 1 then, enters the system of rotation.Gas among the passage a1 enters the first air inlet axle sleeve 2-1 and the rotating shaft 1 annular gas storage space that forms through the vent on first air inlet disk and the first air inlet axle sleeve 2-1, passes through the a1 passage in the rotating shaft 1 then, enters the system of rotation.Gas among the passage a2 enters the second air inlet axle sleeve 2-2 and the rotating shaft 1 annular gas storage space that forms through the vent on second air inlet disk and the second air inlet axle sleeve 2-2, pass through the a2 passage in the rotating shaft 1 then, enter the system of rotation, gas to the passage an enters n air inlet axle sleeve 2-n and the rotating shaft 1 annular gas storage space that forms through the vent on n air inlet disk and the n air inlet axle sleeve 2-n by that analogy, pass through an passage in the rotating shaft 1 then, enter the system of rotation.Because each air inlet axle sleeve and rotating shaft 1 formed annular gas storage space are by the sealing of magnetic fluid sealing assembly, the gas among the gas-entered passageway a0 to a1 can not collaborated mutually, has accomplished zero leakage in the gas course of conveying.
When giving vent to anger, the gas in the rotation system enters outlet passageway b0 to bn by b0 to the bn hole in the rotating shaft 1.Gas among the passage b0 enters a left side give vent to anger axle sleeve 5 and the rotating shaft 1 annular gas storage space that forms through outlet passageway b0, enters static system through left side axle sleeve 5 and the left side through hole that coils on 21 of giving vent to anger of giving vent to anger then.Gas among the passage b1 enters first give vent to anger axle sleeve 5-1 and the rotating shaft 1 annular gas storage space that forms through outlet passageway b1, then through first give vent to anger axle sleeve 5-1 and first give vent to anger the dish on through hole enter static system, gas among the passage b2 enters second give vent to anger axle sleeve 5-2 and the rotating shaft 1 annular gas storage space that forms through outlet passageway b2, then through second give vent to anger axle sleeve 5-2 and second give vent to anger the dish on through hole enter static system, gas to the passage bn enters n give vent to anger axle sleeve 5-n and the rotating shaft 1 annular gas storage space that forms through outlet passageway bn by that analogy, enters static system through the n through hole that axle sleeve 5-n and n give vent to anger on coiling of giving vent to anger then.Gas axle sleeve and rotating shaft 1 formed annular gas storage space are by the sealing of magnetic fluid sealing assembly owing to respectively give vent to anger, and the gas among the outlet passageway b0 to bn can not collaborated mutually, has accomplished zero leakage in the gas course of conveying.
In actual applications, can select this 2(n+1 for use according to actual conditions) gas throughput direction and the position in individual hole.
Claims (8)
1. one kind is used for the magnetic fluid seal device that multi-channel gas is carried between rotation system and the stationary system, it is characterized in that: this device comprises: rotating shaft (1), left side air inlet axle sleeve (2), left side air inlet magnetic fluid sealing assembly (3), the left side magnetic fluid sealing assembly (4) of giving vent to anger, the left side axle sleeve (5) of giving vent to anger, the first air inlet axle sleeve (2-1), the first air inlet magnetic fluid sealing assembly (3-1), the first magnetic fluid sealing assembly (4-1) of giving vent to anger, first axle sleeve (5-1) of giving vent to anger, the second air inlet axle sleeve (2-2), the second air inlet magnetic fluid sealing assembly (3-2), the second magnetic fluid sealing assembly of giving vent to anger, second axle sleeve of giving vent to anger, by that analogy to n-1 air inlet axle sleeve, n-1 air inlet magnetic fluid sealing assembly, the n-1 magnetic fluid sealing assembly of giving vent to anger, the n-1 axle sleeve (5-(n-1) of giving vent to anger), n air inlet axle sleeve (2-n), n air inlet magnetic fluid sealing assembly (3-n), the n magnetic fluid sealing assembly (4-n) of giving vent to anger, the n axle sleeve (5-n) of giving vent to anger, right axle sleeve (6), right pad (7), right magnetic fluid sealing assembly (8), right isolating ring (9), left bearing (10-1), right bearing (10-2), first jump ring (11-1), second jump ring (11-2), the 3rd jump ring (11-3), right end cap (12), left screw (13), first screw (13-1), by that analogy to n-1 screw (13-(n-1)), n screw (13-n), left end cap (14), left isolating ring (15).
Constituting this device each several part connects:
Left end cap (14) is installed in the rotating shaft (1), first jump ring (11-1) is installed in the first jump ring groove of rotating shaft (1), left bearing is installed in the right-hand member of first jump ring (11-1), be interference fit between left bearing (10-1) and the rotating shaft (1), second jump ring (11-2) is installed in the second jump ring groove of rotating shaft (1), the left axle sleeve assembly is packed in the rotating shaft (1), make the left side of the left isolating ring (15) in the left axle sleeve assembly and the right side of left bearing (10-1) fit, be interference fit between the left air inlet axle sleeve (2) in left bearing (10-1) and the left bearing assembly, between left axle sleeve assembly and the rotating shaft (1) by give vent to anger magnetic fluid sealing assembly (4) sealing of the left air inlet magnetic fluid sealing assembly (3) in the left axle sleeve assembly and a left side; The first air inlet axle sleeve (2-1) in first sleeve assembly is installed in the give vent to anger right-hand member of axle sleeve (5) of a left side in the left axle sleeve assembly, with left screw (13) the first air inlet axle sleeve (2-1) in first sleeve assembly and the left side in the left axle sleeve assembly axle sleeve (5) of giving vent to anger is connected, between first sleeve assembly and the rotating shaft (1) by magnetic fluid sealing assembly (4-1) sealing of giving vent to anger of the first air inlet magnetic fluid sealing assembly (3-1) and first in first sleeve assembly; The second air inlet axle sleeve (2-2) in second sleeve assembly is installed in the give vent to anger right-hand member of axle sleeve (5-1) of first in first sleeve assembly, with first screw (13-1) axle sleeve (5-1) of giving vent to anger of first in the second air inlet axle sleeve (2-2) in second sleeve assembly and first sleeve assembly is connected, between second sleeve assembly and the rotating shaft (1) by the magnetic fluid sealing assembly sealing of giving vent to anger of the second air inlet magnetic fluid sealing assembly (3-2) and second in second sleeve assembly; By that analogy to the n air inlet axle sleeve (2-n) in the n sleeve assembly being installed in the give vent to anger right-hand member of axle sleeve (5-(n-1)) of n-1 in the n-1 sleeve assembly, with n-1 screw (13-(n-1)) the n air inlet axle sleeve (2-n) in the n sleeve assembly and n-1 in the n-1 sleeve assembly axle sleeve (5-(n-1)) of giving vent to anger is connected, between n sleeve assembly and the rotating shaft (1) by the n air inlet magnetic fluid sealing assembly (3-n) in the n sleeve assembly and n magnetic fluid sealing assembly (4-n) sealing of giving vent to anger; Right axle sleeve (6) is installed in the give vent to anger right-hand member of axle sleeve (5-n) of n in the n sleeve assembly, with n screw (13-n) right axle sleeve (6) and n in the n sleeve assembly axle sleeve (5-n) of giving vent to anger is connected; Right pad (7) is installed in the give vent to anger right-hand member of axle sleeve (5-n) of n in the n sleeve assembly, right magnetic fluid sealing assembly (8) is installed in the right-hand member of right pad (7), right isolating ring (9) is installed in the right-hand member of right magnetic fluid sealing assembly (8), right bearing (10-2) is installed in the right-hand member of right isolating ring (9), be interference fit between right bearing (10-2) and the rotating shaft (1), be interference fit between right bearing (10-2) and the right axle sleeve (6), right end cap (12) is installed in the right-hand member of right bearing (10-2), between right end cap (12) and the right axle sleeve (6) by being threaded, with left end cap (14) by being threaded in the left air inlet axle sleeve (2) between left end cap (14) and the left air inlet axle sleeve (2).
2. left axle sleeve assembly according to claim 1 is characterized in that this left axle sleeve assembly comprises: left air inlet axle sleeve (2), left side air inlet pad (15), left side air inlet magnetic fluid sealing assembly (3), screw (16), left air inlet seal ring (17), the left side pad (18) of giving vent to anger, the left side magnetic fluid sealing assembly (4) of giving vent to anger, the left side axle sleeve (5) of giving vent to anger, the left side seal ring (19) of giving vent to anger, left side air inlet disk (20), the left side dish (21) of giving vent to anger;
The each several part that constitutes this assembly connects: the left side that left air inlet magnetic fluid sealing assembly (3) is installed in left air inlet axle sleeve (2) inner convex platform, left air inlet pad (15) is installed in the left end of left air inlet magnetic fluid sealing assembly (3), left air inlet disk (20) is welded on the position of opening of left air inlet axle sleeve (2), left air inlet seal ring (17) is installed in the seal groove of left air inlet axle sleeve (2) right side, the left side magnetic fluid sealing assembly (4) of giving vent to anger is installed in the give vent to anger left side of axle sleeve (5) inner convex platform, a left side, the left side pad (18) of giving vent to anger is installed in the give vent to anger left end of magnetic fluid sealing assembly (4) of a left side, the left side dish (21) of giving vent to anger is welded on the give vent to anger position of opening of axle sleeve (5) of a left side, the left side seal ring (19) of giving vent to anger is installed in a left side and gives vent to anger in the seal groove of axle sleeve (5) right side, the left side axle sleeve (5) of giving vent to anger is installed in the right-hand member of left air inlet axle sleeve (2), with screw (16) left side axle sleeve (5) of giving vent to anger is connected with left air inlet axle sleeve (2), forms the left axle sleeve assembly.
3. first sleeve assembly according to claim 1 is characterized in that this first sleeve assembly comprises: the first air inlet axle sleeve (2-1), the first air inlet pad (15-1), the first air inlet magnetic fluid sealing assembly (3-1), screw (16-1), the first air inlet seal ring (17-1), first pad (18-1) of giving vent to anger, the first magnetic fluid sealing assembly (4-1) of giving vent to anger, first axle sleeve (5-1) of giving vent to anger, first seal ring (19-1) of giving vent to anger, first air inlet disk (20-1), first dish (21-1) of giving vent to anger;
The each several part that constitutes this assembly connects: the left side that the first air inlet magnetic fluid sealing assembly (3-1) is installed in first air inlet axle sleeve (2-1) inner convex platform, the first air inlet pad (15-1) is installed in the left end of the first air inlet magnetic fluid sealing assembly (3-1), first air inlet disk (20-1) is welded on the position of opening of the first air inlet axle sleeve (2-1), the first air inlet seal ring (17-1) is installed in the seal groove of first air inlet axle sleeve (2-1) right side, the first magnetic fluid sealing assembly (4-1) of giving vent to anger is installed in first left side of giving vent to anger axle sleeve (5-1) inner convex platform, first pad (18-1) of giving vent to anger is installed in first left end of giving vent to anger magnetic fluid sealing assembly (4-1), first dish (21-1) of giving vent to anger is welded on first position of opening of giving vent to anger axle sleeve (5-1), first seal ring (19-1) of giving vent to anger is installed in first and gives vent to anger in the seal groove of axle sleeve (5-1) right side, first axle sleeve (5-1) of giving vent to anger is installed in the right-hand member of the first air inlet axle sleeve (2-1), with screw (16-1) first axle sleeve (5-1) of giving vent to anger is connected with the first air inlet axle sleeve (2-1), forms first sleeve assembly.
4. first sleeve assembly to the n sleeve assembly according to claim 1 is characterized in that this first sleeve assembly to the n sleeve assembly is structurally identical, wherein n 〉=0.
5. air inlet magnetic fluid sealing assembly according to claim 1, give vent to anger magnetic fluid sealing assembly and right magnetic fluid sealing assembly is characterized in that this air inlet magnetic fluid sealing assembly, give vent to anger magnetic fluid sealing assembly and right magnetic fluid sealing assembly comprises: first pole shoe (22-1), second pole shoe (22-2), by that analogy to n pole shoe (22-n), first permanent magnet (23-1), second permanent magnet (23-2), by that analogy to n-1 permanent magnet (23-(n-1)), first rubber ring (24-1), second rubber ring (24-2) is by that analogy to n rubber ring (24-n);
Constitute this air inlet magnetic fluid sealing assembly, give vent to anger being connected of magnetic fluid sealing assembly and right magnetic fluid sealing assembly: the right side that first permanent magnet (23-1) is installed in first pole shoe (22-1), continue and second pole shoe (22-2) is installed in the right side of first permanent magnet (23-1), second permanent magnet (23-2) is installed in the right side of second pole shoe (22-2), by that analogy to n-1 permanent magnet (23-(n-1)) be installed in n-1 pole shoe (22-(n-1)) the right side, n pole shoe (22-n) is installed in the right side of n-1 permanent magnet (23-(n-1)); Junction plane between adjacent parts all sticks with glue and connects; First rubber seal (24-1) is installed in the seal groove of first pole shoe (22-1), second rubber seal (24-2) is installed in the seal groove of second pole shoe (22-2); To n rubber seal (24-n) is installed in the seal groove of n pole shoe (22-n), form air inlet magnetic fluid sealing assembly, give vent to anger magnetic fluid sealing assembly and right magnetic fluid sealing assembly by that analogy; Air inlet magnetic fluid sealing assembly, give vent to anger magnetic fluid sealing assembly and right magnetic fluid sealing assembly are identical in structure, wherein n 〉=2.
6. left air inlet axle sleeve according to claim 2 (2) is characterized in that: the endoporus left end of this left side air inlet axle sleeve (2) has screw thread.
7. right axle sleeve according to claim 1 (6) is characterized in that: the endoporus right-hand member of this right axle sleeve (6) has screw thread.
8. it is characterized in that according to the described rotating shaft of claim 1 (1): this rotating shaft (1) upper edge 360 degree directions are distributed with the different inlet hole of (n+1) individual degree of depth, (n+1) the different air outlet hole of the individual degree of depth; Rotating shaft (1) left end can require to process according to the connection device situation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310183238.8A CN103244689B (en) | 2013-05-17 | 2013-05-17 | A kind of magnetic fluid seal device for multi-channel gas conveying between rotation system and stationary system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310183238.8A CN103244689B (en) | 2013-05-17 | 2013-05-17 | A kind of magnetic fluid seal device for multi-channel gas conveying between rotation system and stationary system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103244689A true CN103244689A (en) | 2013-08-14 |
| CN103244689B CN103244689B (en) | 2015-08-12 |
Family
ID=48924426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310183238.8A Expired - Fee Related CN103244689B (en) | 2013-05-17 | 2013-05-17 | A kind of magnetic fluid seal device for multi-channel gas conveying between rotation system and stationary system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103244689B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134964A (en) * | 2015-09-09 | 2015-12-09 | 北京交通大学 | Multi-channel rotary gas delivery device for sealing magnetic liquid |
| CN110939739A (en) * | 2019-12-16 | 2020-03-31 | 清华大学 | Magnetic powder and magnetic liquid combined sealing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62278377A (en) * | 1986-05-27 | 1987-12-03 | Mitsubishi Electric Corp | Magnetic fluid sealing device |
| CN2727463Y (en) * | 2004-08-09 | 2005-09-21 | 中国航天科技集团公司第一研究院第十五研究所 | Magnetic liquid sealing structure on a cryogenic pump |
| CN101749433A (en) * | 2010-02-08 | 2010-06-23 | 北京交通大学 | Biaxial magnetic liquid sealing structure |
| CN102182830A (en) * | 2011-05-05 | 2011-09-14 | 北京交通大学 | Rotary sealing device for magnetic liquid |
| CN201982669U (en) * | 2011-04-06 | 2011-09-21 | 湖南维格磁流体股份有限公司 | Rotating shaft sectional magnetic fluid sealing device |
-
2013
- 2013-05-17 CN CN201310183238.8A patent/CN103244689B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62278377A (en) * | 1986-05-27 | 1987-12-03 | Mitsubishi Electric Corp | Magnetic fluid sealing device |
| CN2727463Y (en) * | 2004-08-09 | 2005-09-21 | 中国航天科技集团公司第一研究院第十五研究所 | Magnetic liquid sealing structure on a cryogenic pump |
| CN101749433A (en) * | 2010-02-08 | 2010-06-23 | 北京交通大学 | Biaxial magnetic liquid sealing structure |
| CN201982669U (en) * | 2011-04-06 | 2011-09-21 | 湖南维格磁流体股份有限公司 | Rotating shaft sectional magnetic fluid sealing device |
| CN102182830A (en) * | 2011-05-05 | 2011-09-14 | 北京交通大学 | Rotary sealing device for magnetic liquid |
Non-Patent Citations (1)
| Title |
|---|
| 孙维民 等: "往复运动轴磁性液体密封实验装置的研制与应用", 《物理实验》, vol. 33, no. 3, 31 March 2013 (2013-03-31), pages 11 - 13 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134964A (en) * | 2015-09-09 | 2015-12-09 | 北京交通大学 | Multi-channel rotary gas delivery device for sealing magnetic liquid |
| CN110939739A (en) * | 2019-12-16 | 2020-03-31 | 清华大学 | Magnetic powder and magnetic liquid combined sealing device |
| CN110939739B (en) * | 2019-12-16 | 2020-08-21 | 清华大学 | Magnetic powder and magnetic liquid combined sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103244689B (en) | 2015-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Parmar et al. | Two stage magnetic fluid vacuum seal for variable radial clearance | |
| CN103574041B (en) | The magnetic liquid rotating sealing device of cooling bath and centrifugal combination | |
| CN101983299B (en) | Rotary joint | |
| JP2013542707A5 (en) | ||
| CN104534100B (en) | Improve high linear speed and the new method in stationary magnetic hydraulic seal life-span | |
| RU2015120978A (en) | Induction Hollow Spiral Transporting Device | |
| CN112112971B (en) | Floating ring type magnetic liquid sealing device | |
| CN107076309B (en) | High speed rotation magnetic fluid seal structure | |
| CN103925372B (en) | Brush type magnetic liquid sealing device | |
| CN103148220A (en) | Magnetic liquid rotary sealing device | |
| CN107906207A (en) | A kind of series parallel type device for sealing magnetic fluid | |
| CN210565771U (en) | High-temperature superconducting magnetic suspension bearing system | |
| CN103244689A (en) | Magnetic liquid sealing device used for multi-channel gas delivery between rotating system and static system | |
| CN103939618A (en) | Magnetic liquid sealing device for porous pole shoes | |
| CN103343822A (en) | Magnetic liquid rotating sealing device suitable for space station | |
| CN103925370A (en) | Magnetic liquid sealing device using magnetic grease | |
| WO2013175830A1 (en) | Braking device | |
| CN103335108A (en) | Magnetic liquid rotary sealing device | |
| CN204030861U (en) | Electromotor cooling system and the motor with this cooling system | |
| CN105932795A (en) | Motor stator using liquid cooling | |
| CN204852354U (en) | New installation of sealed heat transfer of reinforcing magnetic fluid | |
| CN204372179U (en) | A kind of device improving high linear speed and stationary magnetic hydraulic seal life-span | |
| CN106321854A (en) | Magnetic liquid sealing device with radial isodirectional magnetization of permanent magnets | |
| CN205953620U (en) | Fluid magnetizing device | |
| CN105972712B (en) | Reduced form outdoor machine of air-conditioner heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20210517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |