CN103727237B - A kind of sealing device for rotary shaft - Google Patents
A kind of sealing device for rotary shaft Download PDFInfo
- Publication number
- CN103727237B CN103727237B CN201310710119.3A CN201310710119A CN103727237B CN 103727237 B CN103727237 B CN 103727237B CN 201310710119 A CN201310710119 A CN 201310710119A CN 103727237 B CN103727237 B CN 103727237B
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- split type
- rotating ring
- running shaft
- type rotating
- sealing member
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Abstract
The invention discloses a kind of sealing device for rotary shaft, include running shaft, in the bottom of running shaft, cover has split type supporting ring, V-seal filler is housed above split type supporting ring, above V-seal filler, the outside cover of running shaft has the gland with pressure ring, on gland, square set has split type rotating ring one, at the split surface of split type rotating ring one with coat sealer with running shaft surface of contact and made by screwing bolts one that split type rotating ring one and running shaft are fixing to be rotated, split type can is provided with outside running shaft above gland, the upper and lower end of described split type can is respectively to outer bending, the lower end of split type can is fixedly connected with gland by bolt two.It is V-seal that the present invention changes former packing seal, reduces and running shaft contact wear, and sealability is more effective, and axle, under the state of bias, can not reduce sealing effect, and working stability is reliable, long service life.
Description
Technical field
The present invention relates to shaft sealing technical field, particularly relate to a kind of sealing device for rotary shaft.
Background technique
Running shaft is extensively present in various transmittance process, as the automatic door etc. in stirrer (in petrochemical industry, metallurgy, the electrical production) water pump in chemical reaction still, blower fan, fluid line.
Traditional seal form has two kinds, and one is packing seal; Another kind of is mechanical seal.
Material filling type sealing is mainly through at the additional sleeve pipe of rotating shaft, forming Seal cage graphite packing (or asbestos, tetrafluoro etc.) is pressed in Seal cage, to reach sealing effect, but because earthfill rockfill concrete riprap RCC elastic properties of materials is little and friction between axle can produce gap, uncompensated to the bias of axle, thus produce leakage, pollute environment, affect equipment safety operation.Mechanical seal installation and maintenance bother, and are not suitable with high temperature (more than 350 degree) environment, use and have narrow limitation.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of sealing device for rotary shaft.
The present invention is achieved by the following technical solutions:
A kind of sealing device for rotary shaft, include running shaft, in the bottom of running shaft, cover has split type supporting ring, V-seal filler is housed above split type supporting ring, above V-seal filler, the outside cover of running shaft has the gland with pressure ring, on gland, square set has split type rotating ring one, at the split surface of split type rotating ring one with coat sealer with running shaft surface of contact and made by screwing bolts one that split type rotating ring one and running shaft are fixing to be rotated, split type can is provided with outside running shaft above gland, the upper and lower end of described split type can is respectively to outer bending, the lower end of split type can is fixedly connected with gland by bolt two, cavity is left between split type rotating ring one and split type can, split type can has through hole interface, if when sealing medium is high-temperature gas, can be in the cavities, cold wind circulation temperature lowering is passed into by through hole interface, during the pressure of adjustment cold wind pressure slightly larger than sealing medium, also there is seal action simultaneously, when sealing medium be poisonous or flammable and explosive substance time, in the cavities, inert medium can be passed into and ensures safety in production.At the top of running shaft, cover has split type rotating ring two, at the split surface of split type rotating ring two with coat sealer with running shaft surface of contact and made by screwing bolts three that split type rotating ring two and running shaft are fixing to be rotated, annular sealing member one is provided with between split type rotating ring one and split type rotating ring two, the intermediate portion outwardly convex of annular sealing member one, the upper and lower end of annular sealing member one is respectively equipped with the flanging of outside bending, distance between described split type rotating ring one and split type rotating ring two equals 90% of annular sealing member one height, annular sealing member two is placed with between the flanging of annular sealing member one upper and lower end, in the inside of annular sealing member two, spring is housed, boss is provided with at the outer side surface of annular sealing member two, metal flange is placed with above boss, metal flange, boss is fixedly connected with by bolt four with the upper end of split type can, after V-seal filler lost efficacy, form the end face seal of two places between split type rotating ring one and split type rotating ring two, annular sealing member one to seal again, and with spring pressurization self compensation, split type rotating ring one and split type rotating ring two rotate with running shaft, annular sealing member one and annular sealing member two static.
Sealer is scribbled between described gland and split type can.
Advantage of the present invention is: it is V-seal that the present invention changes former packing seal, reduces and running shaft contact wear, and sealability is more effective, and axle, under the state of bias, can not reduce sealing effect, and working stability is reliable, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, a kind of sealing device for rotary shaft, include running shaft 13, in the bottom of running shaft 13, cover has split type supporting ring 1, V-seal filler 2 is housed above split type supporting ring 1, above V-seal filler 2, the outside cover of running shaft 13 has the gland 3 with pressure ring, on gland 3, square set has split type rotating ring 1, at the split surface of split type rotating ring 1 with coat sealer with running shaft 13 surface of contact and made by screwing bolts 1 split type rotating ring 1 rotate with running shaft 13 is fixing, split type can 4 is provided with outside running shaft 13 above gland 3, the upper and lower end of described split type can 4 is respectively to outer bending, the lower end of split type can 4 is fixedly connected with gland 3 by bolt 28, cavity 15 is left between split type rotating ring 1 and split type can 4, split type can 4 has through hole interface 5, if when sealing medium is high-temperature gas, can in cavity 15, cold wind circulation temperature lowering is passed into by through hole interface 5, during the pressure of adjustment cold wind pressure slightly larger than sealing medium, also there is seal action simultaneously, when sealing medium be poisonous or flammable and explosive substance time, in cavity 15, inert medium can be passed into and ensures safety in production.At the top of running shaft 13, cover has split type rotating ring 2 12, at the split surface of split type rotating ring 2 12 with coat sealer with running shaft 13 surface of contact and made by screwing bolts 3 17 split type rotating ring 2 12 rotate with running shaft 13 is fixing, annular sealing member 1 is provided with between split type rotating ring 1 and split type rotating ring 2 12, the intermediate portion outwardly convex of annular sealing member 1, the upper and lower end of annular sealing member 1 is respectively equipped with the flanging of outside bending, distance between described split type rotating ring 1 and split type rotating ring 2 12 equals 90% of annular sealing member 1 height, annular sealing member 29 is placed with between the flanging of annular sealing member 1 upper and lower end, in the inside of annular sealing member 29, spring 10 is housed, boss 18 is provided with at the outer side surface of annular sealing member 29, metal flange 7 is placed with above boss 18, metal flange 7, boss 18 is fixedly connected with by bolt 4 14 with the upper end of split type can 4, after V-seal filler 2 lost efficacy, form the end face seal of two places between split type rotating ring 1 and split type rotating ring 2 12, annular sealing member 1 to seal again, and to pressurize self compensation with spring 10, split type rotating ring 1 and split type rotating ring 2 12 rotate with running shaft 13, annular sealing member 1 and annular sealing member 29 static.
Sealer is scribbled between described gland 3 and split type can 4.
Claims (2)
1. a sealing device for rotary shaft, it is characterized in that: include running shaft, in the bottom of running shaft, cover has split type supporting ring, V-seal filler is housed above split type supporting ring, above V-seal filler, the outside cover of running shaft has the gland with pressure ring, on gland, square set has split type rotating ring one, at the split surface of split type rotating ring one with coat sealer with running shaft surface of contact and made by screwing bolts one that split type rotating ring one and running shaft are fixing to be rotated, split type can is provided with outside running shaft above gland, the upper and lower end of described split type can is respectively to outer bending, the lower end of split type can is fixedly connected with gland by bolt two, cavity is left between split type rotating ring one and split type can, split type can has through hole interface, at the top of running shaft, cover has split type rotating ring two, at the split surface of split type rotating ring two with coat sealer with running shaft surface of contact and made by screwing bolts three that split type rotating ring two and running shaft are fixing to be rotated, annular sealing member one is provided with between split type rotating ring one and split type rotating ring two, the intermediate portion outwardly convex of annular sealing member one, the upper and lower end of annular sealing member one is respectively equipped with the flanging of outside bending, distance between described split type rotating ring one and split type rotating ring two equals 90% of annular sealing member one height, annular sealing member two is placed with between the flanging of annular sealing member one upper and lower end, in the inside of annular sealing member two, spring is housed, boss is provided with at the outer side surface of annular sealing member two, metal flange is placed with above boss, metal flange, boss is fixedly connected with by bolt four with the upper end of split type can, after V-seal filler lost efficacy, form the end face seal of two places between split type rotating ring one and split type rotating ring two, annular sealing member one to seal again, and with spring pressurization self compensation, split type rotating ring one and split type rotating ring two rotate with running shaft, annular sealing member one and annular sealing member two static.
2. a kind of sealing device for rotary shaft according to claim 1, is characterized in that: between described gland and split type can, scribble sealer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310710119.3A CN103727237B (en) | 2013-12-19 | 2013-12-19 | A kind of sealing device for rotary shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310710119.3A CN103727237B (en) | 2013-12-19 | 2013-12-19 | A kind of sealing device for rotary shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103727237A CN103727237A (en) | 2014-04-16 |
| CN103727237B true CN103727237B (en) | 2016-03-30 |
Family
ID=50451452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310710119.3A Active CN103727237B (en) | 2013-12-19 | 2013-12-19 | A kind of sealing device for rotary shaft |
Country Status (1)
| Country | Link |
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| CN (1) | CN103727237B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989913B (en) * | 2017-12-13 | 2020-04-03 | 马鞍山市荣亿密封材料有限责任公司 | Easy-to-detach oil seal bearing structure |
| CN108930791B (en) * | 2018-07-26 | 2020-07-24 | 中国航发沈阳发动机研究所 | Adjustable seal structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4033195A (en) * | 1975-01-13 | 1977-07-05 | Kawasaki Heavy Industries, Ltd. | Driven clutch device for V-belt type automatic transmission |
| US4707150A (en) * | 1987-01-14 | 1987-11-17 | Disposable Waste Systems, Inc. | Fluid pressure assisted rotary shaft seal with grooved seal wedge |
| CN1506601A (en) * | 2002-12-12 | 2004-06-23 | 中国科学院长春光学精密机械与物理研 | Mechanical sealer for precision shafting |
| CN1540139A (en) * | 2003-04-25 | 2004-10-27 | 江西华电电力有限责任公司 | Screw expansion power machine |
| CN203641514U (en) * | 2013-12-19 | 2014-06-11 | 马鞍山市荣亿密封材料有限责任公司 | Rotating shaft sealing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1030589A (en) * | 1996-07-15 | 1998-02-03 | Mitsubishi Heavy Ind Ltd | Sewage pump shaft sealing device |
-
2013
- 2013-12-19 CN CN201310710119.3A patent/CN103727237B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4033195A (en) * | 1975-01-13 | 1977-07-05 | Kawasaki Heavy Industries, Ltd. | Driven clutch device for V-belt type automatic transmission |
| US4707150A (en) * | 1987-01-14 | 1987-11-17 | Disposable Waste Systems, Inc. | Fluid pressure assisted rotary shaft seal with grooved seal wedge |
| CN1506601A (en) * | 2002-12-12 | 2004-06-23 | 中国科学院长春光学精密机械与物理研 | Mechanical sealer for precision shafting |
| CN1540139A (en) * | 2003-04-25 | 2004-10-27 | 江西华电电力有限责任公司 | Screw expansion power machine |
| CN203641514U (en) * | 2013-12-19 | 2014-06-11 | 马鞍山市荣亿密封材料有限责任公司 | Rotating shaft sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103727237A (en) | 2014-04-16 |
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