CN104165227B - A kind of detachable rotating shaft lip-shaped sealing device - Google Patents
A kind of detachable rotating shaft lip-shaped sealing device Download PDFInfo
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- CN104165227B CN104165227B CN201410369854.7A CN201410369854A CN104165227B CN 104165227 B CN104165227 B CN 104165227B CN 201410369854 A CN201410369854 A CN 201410369854A CN 104165227 B CN104165227 B CN 104165227B
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Abstract
The invention provides a kind of detachable rotating shaft lip-shaped sealing device, the lip shape seal device includes end cap (12401), the first sealing lip (124022), the second sealing lip (124023), the 3rd sealing lip (124024), shell (12403), the first support ring (12405), the second support ring (12404), rubber blanket (12406), spring washer (12408), turn (12409), the first O-ring (12410), the second O-ring (12412)；In the present invention, first support ring of detachable rotating shaft lip-shaped sealing device and the structure of the second support ring substantially reduce the bearing area of PTFE seal lip, the height bearing capacity of PTFE seal lip is provided, the sealing of lip shape seal device bidirection press fluid, and ne-leakage can be achieved；In addition, the sealing lip of detachable rotating shaft lip-shaped sealing device is cut using PTFE cylinder truck and formed, and other parts of lip shape seal device are also machined into, it is not necessary to particular manufacturing craft, production cost substantially reduces, the trial-production for the lip shape seal device that is particularly suitable for use in and small lot production；Sealing lip damages during use, by being dismounted to detachable rotating shaft lip-shaped sealing device, changes sealing lip, other parts can also continue to use, and also greatly save use cost.
Description
Technical field
The present invention relates to a kind of sealing device, more particularly to a kind of detachable rotating shaft lip-shaped sealing device, the sealing
Device can be applied to the hydraulic seals such as the water of numerous rotating machineries, oil.
Background technology
The rotary shaft lip seal for being conventionally used to the sealing of rotating machinery fluid is only capable of realizing uniaxial pressure sealing or side
The function of pressure seal side dust seal, it is impossible to two-way simultaneous high pressure sealing is carried out, such as：Application No.
200420022202.8 the patent of entitled " a kind of rubber combined rotary shaft lip seal ", and application number：
200520106303.8 the patent of entitled " Teflon labiate sealed ring of rotation axis " discloses rotary shaft lip
Ring structure, but these rotary shaft lip seals are skeleton construction, it is necessary to which special mould enters production, when it come to
Its processing cost of the trial-production of product is higher, if sealing lip fails during use, whole rotary shaft lip seal will be discarded,
Use cost is also very high.
The content of the invention
The purpose of the present invention is overcome the deficiencies in the prior art, there is provided a kind of detachable rotating shaft lip-shaped sealing device,
The sealing device can realize bidirection press rotatory sealing.
Production for existing rotary shaft lip seal is complicated, and processing and this too high defect of use cost, invention
A kind of detachable rotating shaft lip-shaped sealing device.
Technical scheme proposed by the present invention is to provide a kind of detachable rotating shaft lip-shaped sealing device, the lip packing
Device includes end cap, the first sealing lip, the second sealing lip, the 3rd sealing lip, shell, the first support ring, the second support ring, rubber
Pad, spring washer, turn, the first O-ring, the second O-ring)；It is characterized in that：
It is provided with end cap on the left of lip shape seal device, right side is provided with shell, in the space that end cap and shell are formed, by a left side
The first sealing lip, the second sealing lip, the 3rd sealing lip are sequentially arranged to the right side, wherein, the first support ring is by the first sealing lip and
Two sealing lips separate, and the second support ring separates the second sealing lip and the 3rd sealing lip；
First sealing lip lip is towards a left side, and the second sealing lip and the 3rd sealing lip lip are in the same direction, towards the right side；
The outer circumference of second support ring offers O-ring groove at the second sealing lip, and the first O-ring is arranged on should
In O-ring groove；
The outer circumference of second support ring is provided with oiling groove at the 3rd sealing lip, and the oiling groove passes through on shell
Oilhole and oil groove communicate with the oil filler point of mounting seat；
An oilhole also is provided with second support ring oiling groove, the oilhole leads between the second sealing lip and the first sealing lip
Cavity；
First sealing lip, the second sealing lip, the 3rd sealing lip lip are compressed by turn respectively, so as to ensure the first sealing
Lip, the second sealing lip, the 3rd sealing lip and rotary shaft are in close contact；
Rubber washer is set between end cap and the first sealing lip, rubber blanket is set between the second sealing lip and the second support ring
Circle, rubber washer is set between the 3rd sealing lip and housing.
Further, end cap is connected with shell by hex screw and spring washer.
Further, it is by the oil filler point of lip shape seal device mounting seat that lubricating oil injection lip shape seal device two is in the same direction
Between the second sealing lip and the 3rd sealing lip of installation, so that forming oil film between the second sealing lip and rotary shaft.
Further, two the second O-rings are provided between lip shape seal device mounting seat and shell, two second O-shaped
Circle is arranged in the groove of outer side.
Further, present invention also offers a kind of assembly method of detachable rotating shaft lip-shaped sealing device, it has
Body comprises the following steps：
Step 1, by the first O-ring put into the second support ring O-ring mounting groove in；
Step 2, by rubber blanket, the 3rd sealing lip, the second support ring equipped with the first O-ring, rubber blanket, the second sealing lip
The inner chamber of shell is sequentially loaded into the first support ring, and each part end face is fitted perfectly each other；
In the step, the second support ring fits into the cavity of shell, and ensures the oil filler point and shell in the second support ring
On oil filler point axle center alignment；
Step 3, along end cap axial direction, rubber blanket and sealing lip are sequentially loaded into end cap endoporus；
Step 4, using soket head cap screw and spring washer shell and end cap are axially linked and packed to together；
Step 5,3 turns are respectively installed on the first sealing lip, the second sealing lip and the 3rd sealing lip 124023；
Step 6, the O-ring of two pieces second is respectively charged into the two pieces O-ring groove of shell outer ring；
Step 7, finally by straight pin, be assembled in the straight pin mounting hole of shell outer ring, that is, complete detachable rotation
The assembling of rotating shaft lip shape seal device.
The beneficial effects of the invention are as follows：
(1) the first support ring of detachable rotating shaft lip-shaped sealing device and the structure of the second support ring substantially reduce
The bearing area of PTFE seal lip, there is provided the high bearing capacity of PTFE seal lip, lip shape seal device bidirection press can be achieved
Fluid seals, and ne-leakage；
(2) sealing lip of detachable rotating shaft lip-shaped sealing device is cut using PTFE cylinder truck and formed, lip packing
Other parts of device are also machined into, it is not necessary to which particular manufacturing craft, production cost substantially reduce, and the lip that is particularly suitable for use in is close
The trial-production of seal apparatus and small lot production；
(3) after the sealing lip failure of detachable rotating shaft lip-shaped sealing device, sealing lip only need to be changed, miscellaneous part is not
Need to change, use cost substantially reduces, and changes simple and convenient, is not required to special frock；
(4) structure design of the oiling groove of detachable rotating shaft lip-shaped sealing device and oil filler point can be to close together with centre
Seal lip and carry out oiling, make to form oil film between sealing lip and rotary shaft, so as to improve the service life and sealing property of envelope lip, also
The sealing situation for being close to inner walls sealing lip can be observed by the oil filler point.
Brief description of the drawings
Fig. 1 is the use state partial sectional view of existing detachable rotary shaft lip seal；
Fig. 2 is existing detachable rotary shaft lip seal front view；
Fig. 3 is existing detachable rotary shaft lip seal partial sectional view；
Fig. 4 is existing detachable rotary shaft lip seal partial sectional view；
Fig. 5 is existing detachable rotary shaft lip seal partial sectional view；
Fig. 6 is end cap front view；
Fig. 7 is end cap partial sectional view；
Fig. 8 is end cap partial sectional view；
Fig. 9 is sealing ring lip schematic diagram；
Figure 10 is shell schematic diagram；
Figure 11 is the first support ring schematic diagram；
Figure 12 is the second support ring schematic diagram；
Figure 13 is rubber blanket schematic diagram.
Wherein, 1. rotary shafts, 2. lip shape seal device back-up rings, 3. lip shape seal device mounting seats, 124. detachable rotations
Rotating shaft lip shape seal device, 12401. end caps, 12402. sealing lips, 12403. shells, 12405. first support rings, 12404.
Two support rings, 12406. rubber blankets, 12407. soket head cap screws, 12408. spring washers, 12409. turns, 12410. first
O-ring, 12411. straight pins, 12412. second O-rings.
Embodiment
That detailed description is carried out to technical scheme below with reference to accompanying drawing 1-13.
As shown in figure 1 to figure 13, the invention provides a kind of detachable rotating shaft lip-shaped sealing device, it mainly includes
End cap 12401, the first sealing lip 124022, the second sealing lip 124023, the 3rd sealing lip 124024,12403, first, shell
Pushing out ring 12405, the second support ring 12404, rubber blanket 12406, soket head cap screw 12407, spring washer 12408, turn
12409th, the first O-ring 12410, straight pin 12411, the second O-ring 12412.
As shown in Fig. 2 left side is provided with end cap 12401 in the lip shape seal device, right side is provided with shell 12403, end
Lid 12401 is connected with shell 12403 by hex screw 12407 and spring washer 12408, end cap 12401 and shell
In 12403 spaces formed, the first sealing lip 124022, the sealing of the second sealing lip the 124023, the 3rd are sequentially arranged from left to right
Lip 124024, wherein, the first support ring 12405 separates the first sealing lip 124022 and the second sealing lip 124023, second
Pushing out ring 12404 separates the second sealing lip 124023 and the 3rd sealing lip 124024；In order to improve the sealing property of device, end cap
12401 and first set rubber washer 12406, the second sealing lip 124023 and the second support ring between sealing lip 124022
Rubber washer 12406 is set between 124504, rubber washer 12406 is set between the 3rd sealing lip 124024 and housing 12403.
Wherein the lip of the first sealing lip 124022 is same towards a left side, the second sealing lip 124023, the lip of the 3rd sealing lip 124024
To towards the right side.
The outer circumference of second support ring 12404 offers O-ring groove, the first O at the second sealing lip 124023
Type circle 12410 is arranged in the O-ring groove；
As shown in figure 5, the outer circumference of the second support ring 12404 is provided with oiling at the 3rd sealing lip 124024
Groove, the oiling groove are communicated by the oilhole on shell 12403 and oil groove with the oil filler point 4 of lip shape seal device mounting seat 3, and the
Also have an oilhole in the oiling groove of two support rings 12404, oilhole lead to the second sealing lip 12404 and the first sealing lip 124022 it
Between cavity；
First sealing lip 124022, the second sealing lip 124023, the lip of the 3rd sealing lip 124024 are respectively by turn
12409 compress, so as to ensure the first sealing lip 124022, the second sealing lip 124023, the 3rd sealing lip 124024 and rotary shaft 1
It is in close contact.
Mounted lip shape seal device integral installation is in lip shape seal device mounting seat 3, lip shape seal device installation
The left side of seat 3 is provided with oil filler point 4 in lip shape seal device mounting seat 3, passed through by the axially position of lip shape seal device back-up ring 2
The second sealing lip that the oil filler point 4 of lip shape seal device mounting seat 3 installs lubricating oil injection lip shape seal device two in the same direction
12402 and the 3rd between sealing lip 12403, so that form oil film between the second sealing lip 12402 and rotary shaft 1, improves the
The sealing property of two sealing lips 1240212402, it is also prevented from rotary shaft and is worn by the second sealing lip 12402, extends it and use the longevity
Life.
The second O-ring of two pieces 12412, the O of two pieces the 2nd are provided between lip shape seal device mounting seat 3 and shell 12403
Type circle 12412 is arranged in the groove in the outside of shell 12403.
As shown in Fig. 2 to Fig. 5, present invention also offers a kind of assembling side of detachable rotating shaft lip-shaped sealing device
Method, it specifically includes following steps：
Step 1, the first O-ring 12410 put into the O-ring mounting groove of the second support ring 12404；
Step 2, by rubber blanket 12406, the 3rd sealing lip 124024, the second support ring equipped with the first O-ring 12410
12404th, rubber blanket 12406, the second sealing lip 12402 and the first support ring 12405 are sequentially loaded into the inner chamber of shell 12403, and
Each part end face is set to fit perfectly each other；
In the step, when the second support ring 12404 is fitted into the cavity of shell 12403, it is necessary to assure the second support ring
Oil filler point axle center alignment on oil filler point and shell on 12404.
Step 3, along end cap 12401 axially, then rubber blanket 12406 and sealing lip 12402 be sequentially loaded into end cap 12401
Kong Zhong；
Step 4, using 24 soket head cap screws and 24 spring washers shell and end cap are axially linked and packed to together；
Step 5, the second O-ring of two pieces 12412 is respectively charged into the O-ring groove of the outer ring of shell 12403；
Step 6, straight pin 12411 is assembled in the straight pin mounting hole of the outer ring of shell 12403, that is, completed detachable
The assembling of formula rotating shaft lip-shaped sealing device.
Claims (3)
1. a kind of detachable rotating shaft lip-shaped sealing device, the lip shape seal device includes end cap (12401), the first sealing lip
(124022), the second sealing lip (124023), the 3rd sealing lip (124024), shell (12403), the first support ring (12405),
Second support ring (12404), rubber blanket (12406), spring washer (12408), turn (12409), the first O-ring
And the second O-ring (12412) (12410)；It is characterized in that：
End cap (12401) is provided with the left of lip shape seal device, right side is provided with shell (12403), in end cap (12401) and outside
Shell (12403) form space in, be sequentially arranged from left to right the first sealing lip (124022), the second sealing lip (124023),
3rd sealing lip (124024), wherein, the first support ring (12405) is by the first sealing lip (124022) and the second sealing lip
(124023) separate, the second support ring (12404) separates the second sealing lip (124023) and the 3rd sealing lip (124024)；
First sealing lip (124022) lip is same towards a left side, the second sealing lip (124023) and the 3rd sealing lip (124024) lip
To towards the right side；
The outer circumference of second support ring (12404) offers O-ring groove, the first O close to the second sealing lip (124023) place
Type circle (12410) is arranged in the O-ring groove；
The outer circumference of second support ring (12404) is provided with oiling groove close to the 3rd sealing lip (124024) place, the oiling groove
Communicated by the oilhole on shell (12403) and oil groove with the oil filler point (4) of mounting seat (3)；
An oilhole also is provided with second support ring (12404) oiling groove, the oilhole leads to the second sealing lip (124023) and first
Cavity between sealing lip (124022)；
First sealing lip (124022), the second sealing lip (124023), the 3rd sealing lip (124024) lip are respectively by turn
(12409) compress, so as to ensure the first sealing lip (124022), the second sealing lip (124023), the 3rd sealing lip (124024)
It is in close contact with rotary shaft (1)；
Between end cap (12401) and the first sealing lip (124022) set rubber blanket (12406), the second sealing lip (124023) with
Rubber blanket (12406) is set between the second support ring (12404), set between the 3rd sealing lip (124024) and shell (12403)
Put rubber blanket (12406)；
Mounted lip shape seal device integral installation is in lip shape seal device mounting seat (3), lip shape seal device mounting seat
(3) left side, will by the oil filler point (4) of lip shape seal device mounting seat (3) by lip shape seal device back-up ring (2) axially position
The second sealing lip (124023) and the 3rd sealing lip (124024) that lubricating oil injection lip shape seal device (124) two is installed in the same direction
Between, so that forming oil film between the second sealing lip (124023) and rotary shaft (1)；
It is provided with two the second O-rings (12412) between lip shape seal device mounting seat (3) and shell (12403), two second
O-ring (12412) is arranged in the groove on the outside of shell (12403).
2. detachable rotating shaft lip-shaped sealing device according to claim 1, it is characterised in that：End cap (12401) with
Shell (12403) is connected by hex screw (12407) and spring washer (12408).
3. the assembly method of detachable rotating shaft lip-shaped sealing device according to claim 1, it specifically includes following
Step：
Step 1, by the first O-ring (12410) put into the second support ring (12404) O-ring groove in；
Step 2, by rubber blanket (12406), the 3rd sealing lip (124024), the second support ring equipped with the first O-ring (12410)
(12404), rubber blanket (12406), the second sealing lip (124023) and the first support ring (12405) are sequentially loaded into shell
(12403) inner chamber, and each part end face is fitted perfectly each other；
In the step, the second support ring (12404) fits into the cavity of shell (12403), and ensures the second support ring (12404)
On oil filler point and shell on oil filler point axle center alignment；
Step 3, along end cap (12401) axially, rubber blanket (12406) and sealing lip (12402) are sequentially loaded into end cap (12401)
In endoporus；
Step 4, using soket head cap screw (12407) and spring washer (12408) by shell (12403) and end cap (12401) axle
To being linked and packed to together；
Step 5,3 turns (12409) are respectively installed to the first sealing lip (124022), the second sealing lip (124023) and
On 3rd sealing lip (124024)；
Step 6, the O-ring of two pieces second (12412) is respectively charged into the two pieces O-ring groove of shell (12403) outer ring；
Step 7, finally straight pin (12411) is assembled in the straight pin mounting hole of shell (12403) outer ring, that is, completing can
The assembling of detachable rotating shaft lip-shaped sealing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410369854.7A CN104165227B (en) | 2014-07-30 | 2014-07-30 | A kind of detachable rotating shaft lip-shaped sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410369854.7A CN104165227B (en) | 2014-07-30 | 2014-07-30 | A kind of detachable rotating shaft lip-shaped sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104165227A CN104165227A (en) | 2014-11-26 |
| CN104165227B true CN104165227B (en) | 2017-12-08 |
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ID=51909166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410369854.7A Active CN104165227B (en) | 2014-07-30 | 2014-07-30 | A kind of detachable rotating shaft lip-shaped sealing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104165227B (en) |
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| CN107269712B (en) * | 2017-07-26 | 2023-05-02 | 广西柳航墙材工业有限公司 | Sealing structure of high-efficiency spiral vacuum extrusion molding machine |
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| US11313469B2 (en) * | 2018-02-27 | 2022-04-26 | Nok Corporation | Sealing structure |
| CN110185800A (en) * | 2019-04-18 | 2019-08-30 | 上海空间推进研究所 | Space flight radial seal elastic element installation method |
| CN111166118B (en) * | 2020-02-19 | 2021-04-16 | 南京溧水高新创业投资管理有限公司 | Lip gloss equipment on probation |
| CN112963540A (en) * | 2021-02-07 | 2021-06-15 | 青岛众力诚达智能科技有限公司 | Rotary sealing structure with supporting lip |
| CN113719612A (en) * | 2021-07-29 | 2021-11-30 | 岚图汽车科技有限公司 | Engine oil pan sealing structure, engine and automobile |
| CN114992329A (en) * | 2022-07-07 | 2022-09-02 | 浙江迦南科技股份有限公司 | Rotary sealing device for sealing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3413008A (en) * | 1965-01-26 | 1968-11-26 | Sealol | Shaft seal |
| US3434727A (en) * | 1965-01-30 | 1969-03-25 | Howaldtswerke Deutsche Werft | Fluid-tight seals for rotatable shafts and the like |
| CN1056926A (en) * | 1990-05-30 | 1991-12-11 | 布隆福斯造船公司 | The rotation shaft seal, the stern tube that is specially adapted to unit of axle of ship propellor seals |
| CN1374468A (en) * | 2000-12-28 | 2002-10-16 | B+V工业技术股份有限公司 | Sealing apparatus for rotating shaft especially ship trailing axle tube |
| CN202597212U (en) * | 2012-05-15 | 2012-12-12 | 攀钢集团攀枝花钢钒有限公司 | Water pump shaft seal structure |
| CN103835863A (en) * | 2014-03-07 | 2014-06-04 | 国电联合动力技术有限公司 | Undersea sealing system, tidal power generation unit applying same and application method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05149441A (en) * | 1991-12-02 | 1993-06-15 | Kobe Steel Ltd | Stern tube shaft seal device |
-
2014
- 2014-07-30 CN CN201410369854.7A patent/CN104165227B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3413008A (en) * | 1965-01-26 | 1968-11-26 | Sealol | Shaft seal |
| US3434727A (en) * | 1965-01-30 | 1969-03-25 | Howaldtswerke Deutsche Werft | Fluid-tight seals for rotatable shafts and the like |
| CN1056926A (en) * | 1990-05-30 | 1991-12-11 | 布隆福斯造船公司 | The rotation shaft seal, the stern tube that is specially adapted to unit of axle of ship propellor seals |
| CN1374468A (en) * | 2000-12-28 | 2002-10-16 | B+V工业技术股份有限公司 | Sealing apparatus for rotating shaft especially ship trailing axle tube |
| CN202597212U (en) * | 2012-05-15 | 2012-12-12 | 攀钢集团攀枝花钢钒有限公司 | Water pump shaft seal structure |
| CN103835863A (en) * | 2014-03-07 | 2014-06-04 | 国电联合动力技术有限公司 | Undersea sealing system, tidal power generation unit applying same and application method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104165227A (en) | 2014-11-26 |
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