CN87107261A - Improved rotating seal - Google Patents
Improved rotating seal Download PDFInfo
- Publication number
- CN87107261A CN87107261A CN 87107261 CN87107261A CN87107261A CN 87107261 A CN87107261 A CN 87107261A CN 87107261 CN87107261 CN 87107261 CN 87107261 A CN87107261 A CN 87107261A CN 87107261 A CN87107261 A CN 87107261A
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- China
- Prior art keywords
- sealing
- black box
- component
- axle
- sealing component
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- Sealing Devices (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
A kind of black box has annular plate-like shell 1 and insertion rotatable sleeve 2 wherein.Shell can be connected on the container wall.The groove 4 of sleeve is laid the root 5 of lip ring 6, but limits the moving axially of smooth flat part 8 of its handling ring of making towards the hard polishing material 9, and this ring with O-ring seals 10 sealings in the enclosure.Sealing and smooth flat partly seal joins, and presses smooth flat under fluid pressure action, forms rotary seal.O-ring seals 12 mating reactions provide sealing between sleeve and insertion axle wherein.
Description
The present invention relates to rotating seal, the Sealing between the shell of running shaft and pressurized container, pump and so on or vacuum pump particularly, there is different hydrodynamic pressures the both sides of this container wall.These fluids not only can contain liquids and gases, and can contain thin pulp, are mixed with the mixture of various processing compounds such as concrete mixture and those.
The stuffing box device is used to prevent pass the leakage of piston rod, impeller shaft or other movable members in hole that cylinder barrel or other are equipped with the container of steam, water or oil along those.Stuffing box is made up of box and follower, and the latter is arranged to extrusion ring around rotating the filler that part seals.
On the other hand, people have used simple lip ring around running shaft, and the hydrodynamic pressure pushing Sealing in the container forms seal action between the inner ring surface in the hole that rotating shaft and rotating shaft are passed.
In U. S. Patent 4465285,4437673 and 2990220, and more complicated seal arrangement has been described in U. S. Patent 1559267.Their shortcoming is undue complexity.
According to a kind of black box provided by the present invention, comprise first kind of second sealing component and shaft component, one of them described sealing component is suitable for being installed in hermetically on the shaft component, and another described member is suitable for installing around the aperture of container wall hermetically, when container uses, on the both sides of the described wall of described container different hydrodynamic pressures is arranged, this axle passes described aperture.First and second sealing components wherein cooperate, between shaft component and described container, form rotary seal, one of them sealing component provides a bearing with smooth flat district, another sealing component comprises a lip that joins with the smooth flat district sealing of bearing, under the fluid pressure difference effect, it is suitable for being compressed against on the described smooth surface, so that form described rotary seal.Black box also comprises braking device, be used for to have the root engagement of the sealing component of described lip, to limit its moving axially towards the described plane area of described bearing, otherwise, because fluid pressure action will produce this and moves axially having on the sealing component of described lip.
According to a kind of sealing component that another aspect of the present invention provided, comprise shell bearing, shaft component and sealing component, sealing component is suitable for being installed on the shaft component, to form rotary seal between shaft component and shell bearing.Wherein, the shell bearing with detachable mode sealed attachment on the aperture of container wall, container in use, there is different hydrodynamic pressures the both sides of described container wall.The shell bearing has a through hole, can hold axle rotation within it.The shell bearing has the smooth flat district, outwards stretching around the aperture towards a side ring of higher pressure of shell bearing.Shaft component has braking device, and the root of sealing component is engaged, and limits it towards the moving axially of described plane area, otherwise, because fluid pressure action will produce this and move axially on sealing component.Sealing component also comprises lip, and it joins with the smooth flat district of shell bearing hermetically, is suitable for depressing by described smooth flat, so that form described rotary seal in fluid pressure action.
The shell bearing preferably directly seals by means of static rubber seal and is assemblied on the aperture of container.This embodiment is specially adapted on the new equipment, and bearing wherein can directly be assemblied on the container wall.
On the other hand, the shell bearing can seal and be assemblied on the shell, this shell with mode sealed attachment removably on the aperture of container wall.This special embodiment is specially adapted on the existing equipment, as the replacement part of abrasion sealing device or Filler box.
Shaft component is preferably with the shoulder device, and sealing component is played braking device.This shoulder device preferably provides with the groove form of the circle edge of threaded shaft.Perhaps this shoulder can provide with the axle collar that is installed on the axle.
Advantageously, shaft component can comprise a sleeve that has the shoulder device, and axle can pass sleeve.Combine with above-mentioned shell, using the advantage of sleeve is to provide seal arrangement to any running shaft, and this seal arrangement can be used as the alternative of stuffing box on existing equipment.
This sleeve can have tapped hole, so that can sleeve be fixed on the axle with suitable flat screw.In this case, the sealing between sleeve and the axle can come appropriate finishing with common O-ring seals.
On the other hand, braking device can lean on sealing component directly is bonded on the axle provides; Perhaps Sealing directly is bonded on the sleeve, sleeve is fixed on the axle with flat screw, and seals with O-ring seals, as mentioned above.
On the other hand, braking device can be provided by the axle collar, and this axle collar has nib to extend in the groove of Sealing root, and the axle collar tightens on the axle by suitable flat screw, therefore limits Sealing moving axially to the bearing plane.
According to a kind of black box that another aspect of the present invention provides, comprise sealing component, shaft component and sealed support member, the latter is suitable for being installed on the shaft component, forms rotary seal between shaft component and sealing component.Wherein, abutment member is with mode threaded shaft member removably and sealed attachment, and abutment member has smooth flat district threaded shaft and outwards stretches, and sealing component with salable ways of connecting around the container wall aperture, this container has different pressure in the both sides of described container in use.Through hole is arranged on the sealing component, can hold shaft component and in the hole, rotate.Pressure vessel wall has braking device, is used for the root of engages and seals member, limits it to the moving axially of described plane area, otherwise, because fluid pressure action on sealing component, will produce this and move axially.Sealing component also comprises lip, and the smooth flat district sealing of it and abutment member is joined, and is suitable for being pressed against on the described smooth flat under fluid pressure action, so that form described rotary seal.
In a typical embodiment of using bearing and sleeve, Sealing size for example diameter is about 38mm, provides to be equivalent to sealing lip and to give pressure or extrusion load at the about 1.5mm of distortion of axial direction.It is favourable with two or more flat screws sleeve being fixed on the axle.Can use the device of other suitable fixed muffle.Before assembling, flat screw is placed in the top in their respective threads holes, screw terminal stretches in the via hole of shell.When being in this position, flat screw will limit sleeve and move vertically, press or extrusion load thereby kept giving.When being fixed to sleeve on the axle, successively each flat screw is screwed on the axle downwards, kept so that give carrying.In other words, tightening first screw can be fixing with axle with sleeve, and sleeve is remained on when tightening second and other any screw on the tram with respect to shell.When axle fixing finished, can be with second and any thereafter screw tightening, thus sleeve is discharged from its clamping position in the enclosure, so that it can rotate freely in the enclosure.But sleeve is owing to fix with axle, still limited its moving vertically.
It is favourable using double-seal device, and second Sealing wherein acts on second plane that is positioned at back, first plane.
Hereinafter with reference to accompanying drawing narration embodiments of the invention, these embodiments only are for illustrative purposes.
Fig. 1 is according to a kind of sectional view that adopts the black box of shell of the present invention;
Fig. 2 is according to a kind of portion's view that adopts shell and comprise the embodiment of double seal of the present invention;
Fig. 3 is the sectional view according to the embodiment of a kind of black box that does not have shell or a sleeve of the present invention;
Fig. 4 is the another kind of sectional view that adopts the embodiment device of the axle collar;
Fig. 5 is the another kind of sectional view that sleeve is used the embodiment device of sealer;
Fig. 6 is the another kind of sectional view that adopts the embodiment device of the different axle collars;
Fig. 7 is a kind of sectional view of embodiment device, and Sealing that it adopted and the position of sealing seat relation are opposite with the position relation of the embodiment device of Fig. 1 to Fig. 6, and promptly Sealing is contained on the wall, and sealing seat is contained on the axle.
Black box shown in Fig. 1 comprises annular plate-like shell 1 and passes its interior sleeve 2 that sleeve 2 can be around its axis 3 rotations.Shell can be with Bolt Connection to the wall of pump or similar container, and bolt can penetrate in the hole (not shown) at close shell periphery position.Can use liner to prevent to leak.
The lip 7 of Sealing 6 joins with smooth flat part 8 sealings on the shell 1, to its applied by the Sealing lip axial deformation produced gives and pressing or extruding.But the outer surface that is fit to of the handling ring 9 that smooth flat part 8 is hard polishing materials to be made carries out sealing against leakage by using O sealing shape circle 10.
Inwall at sleeve 2 is provided with groove 11 and O-ring seals 12, and they are worked in coordination, sleeve 2 and pass in it the axle between sealing is provided.
Be provided with tapped hole 13 on sleeve 2, the flat screw (not shown) is twisted within it, and sleeve 2 is clamped on the axle.Before assembling, flat screw is placed on the top of tapped hole, screw terminal will put in the via hole 19 of shell 1 (when in tapped hole 13 and the hole 19 radially in line the time).In this position, flat screw head restriction sleeve 2 moves vertically, presses or extruding thereby keep giving.When being fixed to sleeve 2 on the axle, flat screw is screwed to downwards on the axle, while second and any other screw (radially arranging around sleeve 2) remain on sleeve on the tram with respect to shell 1.
When to after fixedly the finishing of axle, can be with second and other screw tightening successively, thereby with sleeve 2 from its holding position release shell 1 in, it can freely be rotated.But sleeve 2 still limits its moving vertically because it is fixed on the axle.Approaching to via hole 19 is to sever part 20 on the housing of outer shell 19 to obtain.
Fig. 2 has shown the device of the second kind of embodiment that has shell and sleeve.This device comprises a pair of sealing component.The component identical with component among Fig. 1 adopt identical label to represent.The root 5a of the second Sealing 6a is assemblied in the second groove 4A of sleeve 2.But the smooth flat part 8a on the outer surface of the lip 7a of Sealing 6a and the second handling ring 9a that is made by the hard polishing material joins.Carry out leakproof seal with O-ring seals 10a.Annular slab 15 clamps with shell 1 by being screwed into bolt in the tapped hole 16, like this O-ring seals 10a and ring 9a is held in place.
In the present embodiment, the annular chamber 17 of tap hole 14 importings between Sealing 6 and 6a.When the second tap hole (not shown) on the opposite side of axle is used in combination, first tap hole can make annular chamber 17 remove any unwanted fluid or chips easily as the duct of introducing washing solution.Hole 14 is provided with helical thread portion 18, is used for being connected with drain hose or flushing flexible pipe.
Black box shown in Fig. 3 does not have shell or sleeve, and it comprises an axle 19, and axle 19 passes the hole 20 of container wall 21, and can rotate within it.On the axle groove 22 is arranged, can lay the root of annular seat component 23, as among reference Fig. 1 the sealing component in the groove 46 is described.
The lip 24 of sealing component 23 joins with 25 sealings of the smooth flat part of ceramic ring 26, and ceramic ring 26 is as the bearing of Sealing 23.Ceramic ring 26 is installed on the notch 27 of container wall 21 hermetically by means of ring-shaped rubber Sealing 28.In use, provide by the Sealing lip axial deformation produced gives and pressing or extruding.Axle 19 is configured on the bearing by it and has limited moving axially of himself, and this shows in the drawings.
Fig. 4,5 and 6 has respectively shown a kind of modification of restriction sealing component towards ceramic ring seat 26 axially movable methods.For simplicity, identical with Fig. 3 component use identical label to represent.In Fig. 4, Sealing 23 is fixed on the axle collar 29 on the axle 19 by being screwed into screw 30 with flat screw and limits its moving vertically.
In Fig. 5, Sealing 23 is glued on the sleeve 31, and sleeve 31 is screwed in the screw 32 with flat screw again and is fixed on the axle.The seal ring of the O-ring seals form in groove 34 provides leakproof seal.
In Fig. 6, there is groove at the root rear portion of the Sealing 23 of modification, and the nib 36 of the axle collar 37 inserts in this groove.With axle 19 fixedly the time, limited vertically mobile of Sealing 23 at the axle collar 37.
In the assembly that is provided in Fig. 7, Sealing 39 is assemblied on the container wall 40.Sealing 39 comes restraint by the nib 41 on the wall 40.Lip 42 joins with smooth flat 43 sealings of abutment member 44, and abutment member 44 is connected on the axle 45 hermetically by static seals 46.Prop up Cuo 44 and Sealing 46 and come restraint by the impeller 47 that is installed on the axle 45.Different with the previous embodiment of Fig. 1 to Fig. 6, therefore Sealing and bearing transposition, when axle 45 rotations, are that bearing 44 rather than Sealing 39 are in rotation.
Claims (20)
1, a kind of black box, it is characterized in that comprising first and second sealing components and shaft component, one of them described sealing component is suitable for being installed in hermetically on the shaft component, and another described member is suitable for installing around the aperture of container wall hermetically, when container uses, on the both sides of the described wall of described container, different hydrodynamic pressures is arranged, this axle passes described aperture, first and second sealing components wherein cooperate, between shaft component and described container wall, form rotary seal, one of them sealing component provides a bearing with smooth flat district, another sealing component comprises a lip that joins with the smooth flat district sealing of bearing, under the fluid pressure difference effect, it is suitable for being compressed against on the described smooth surface, so that form described rotary seal, black box also comprises braking device, the root that is used for having the sealing component of described lip engages, to limit its moving axially towards the described plane area of described bearing, otherwise, because fluid pressure action will produce this and moves axially having on the sealing component of described lip.
2, a kind of sealing component, it is characterized in that comprising the shell bearing, shaft component and sealing component, sealing component is suitable for being installed on the shaft component, between shaft component and shell bearing, to form rotary seal, wherein, the shell bearing with mode sealed attachment removably on the aperture of container wall, this container in use, there is different hydrodynamic pressures the both sides of described container wall, the shell bearing has a through hole, can hold axle rotation within it, and the shell bearing has the smooth flat district, the side ring towards higher pressure at the shell bearing outwards stretches around the aperture, shaft component has braking device, and the root of sealing component is engaged, and limits its moving axially towards described plane area, otherwise, because fluid pressure action will produce this and moves axially on sealing component, sealing component also comprises lip, and it joins with the smooth flat district of shell bearing hermetically, be suitable under fluid pressure action, pressing described smooth flat, so that form described rotary seal.
3,, it is characterized in that the shell bearing is assemblied on the aperture of container wall by means of the direct sealing of static rubber seal according to the black box of claim 2.
4, according to the black box of claim 2, it is characterized in that the shell bearing can seal to be assemblied on the shell, this shell with mode sealed attachment removably on the aperture of container wall.
5, according to each black box in the claim 2 to 4, it is characterized in that shaft component has the shoulder device, plays the braking device effect to sealing component.
6,, it is characterized in that the shoulder device is that groove form with the periphery of threaded shaft provides according to the black box of claim 5.
7,, it is characterized in that the shoulder device provides with the axle collar that is installed on the axle according to the black box of claim 5.
8, according to the black box of claim 5, it is characterized in that shaft component comprises a sleeve that has the shoulder device, axle can pass this sleeve.
9, black box according to Claim 8 is characterized in that tapped hole is arranged on the sleeve, so that available suitable flat screw is fixed to sleeve on the axle.
10,, it is characterized in that braking device is to provide by sealing component directly is bonded on the axle according to each seal arrangement in the claim 2 to 4.
11, according to each seal arrangement in the claim 2 to 4, it is characterized in that braking device is to provide by sealing component directly is bonded on the sleeve, sleeve is fixed on the axle with flat screw.
12, according to each black box in the claim 2 to 4, it is characterized in that braking device can provide with the axle collar, this axle collar has nib to extend in the groove of Sealing root, and the axle collar is fixed on the axle by flat screw.
13, according to the black box of claim 4, it is characterized in that shaft component comprises sleeve, braking device is provided by the shoulder device around the groove form of sleeve circle edge, and is applied with the giving of axial direction towards the smooth flat district of shell bearing that is equivalent to the sealed lip distortion 1.5mm produced and presses or extruding.
14,, it is characterized in that sleeve being fixed on the axle with two or more flat screws according to the black box of claim 13.
15, according to each black box in the claim 2 to 14, it is characterized in that being provided with double-seal device, wherein second sealing component acts in the smooth flat district of the second shell bearing that is positioned at the first shell bearing plane area back.
16, a kind of black box, it is characterized in that comprising sealing component, shaft component and sealed support member, the sealed support member is suitable for being installed on the shaft component, between shaft component and sealing component, form rotary seal, wherein, abutment member is with mode threaded shaft member removably and sealed attachment, abutment member has smooth flat district threaded shaft and outwards stretches, and sealing component with salable ways of connecting around the container wall aperture, this container has different pressure in use in the both sides of described container wall, through hole is arranged on the sealing component, can hold shaft component and rotate in its hole, pressure vessel wall has braking device, is used for the root of engages and seals member, limit its moving axially to described plane area, otherwise, because fluid pressure action on sealing component, will produce this and move axially, sealing component also comprises lip, the smooth flat district sealing of it and abutment member is joined, and is suitable for pressing described smooth flat under fluid pressure action, to form described rotary seal.
17, according to the black box of claim 16, direct sealing is assemblied on the axle by static rubber seal to it is characterized in that the shell bearing.
18, according to the black box of claim 16 or 17, it is characterized in that the shoulder device is arranged on the container wall aperture, the root of sealing component is played braking device.
19, according to the black box of claim 17 or 17, assembly is characterized in that braking device is by providing on the aperture that sealing component directly is bonded in container wall.
20, a kind of basically as here in conjunction with arbitrary the described black box of accompanying drawing.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU930986 | 1986-12-03 | ||
| AUPH9309 | 1986-12-03 | ||
| AUPI4164 | 1987-09-04 | ||
| AU416487 | 1987-09-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87107261A true CN87107261A (en) | 1988-06-15 |
Family
ID=25610565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87107261 Pending CN87107261A (en) | 1986-12-03 | 1987-12-03 | Improved rotating seal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN87107261A (en) |
| IL (1) | IL84691A0 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100338378C (en) * | 2005-03-16 | 2007-09-19 | 哈尔滨工业大学 | Sealing device between rotating shaft and liquid nitrogen container |
| CN105299231A (en) * | 2015-11-10 | 2016-02-03 | 中国工程物理研究院激光聚变研究中心 | Vacuum rotation sealing device |
| CN106104113A (en) * | 2014-01-29 | 2016-11-09 | 彻斯特顿公司 | Non-contacting labyrinth seal assembly |
-
1987
- 1987-12-02 IL IL84691A patent/IL84691A0/en unknown
- 1987-12-03 CN CN 87107261 patent/CN87107261A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100338378C (en) * | 2005-03-16 | 2007-09-19 | 哈尔滨工业大学 | Sealing device between rotating shaft and liquid nitrogen container |
| CN106104113A (en) * | 2014-01-29 | 2016-11-09 | 彻斯特顿公司 | Non-contacting labyrinth seal assembly |
| CN106104113B (en) * | 2014-01-29 | 2018-11-06 | 彻斯特顿公司 | Non-contacting labyrinth seal assembly |
| CN105299231A (en) * | 2015-11-10 | 2016-02-03 | 中国工程物理研究院激光聚变研究中心 | Vacuum rotation sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| IL84691A0 (en) | 1988-05-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |