CN102147014A - High-pressure rotary sealing device - Google Patents
High-pressure rotary sealing device Download PDFInfo
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- CN102147014A CN102147014A CN2011100700965A CN201110070096A CN102147014A CN 102147014 A CN102147014 A CN 102147014A CN 2011100700965 A CN2011100700965 A CN 2011100700965A CN 201110070096 A CN201110070096 A CN 201110070096A CN 102147014 A CN102147014 A CN 102147014A
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- oil circuit
- ring
- sealing device
- rotary component
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Abstract
The invention discloses a high-pressure rotary sealing device which comprises a static ring and an outer sealing box used for sealing and sleeved on the periphery of a rotary part, wherein the static ring is in sealing matching with the static part, wherein the outer sealing box is fixedly connected with the static ring, a static ring oil path communicated with an oil path on the static part is arranged on the static ring, and an external sealing box oil path for communicating the oil path on the rotating part with the static ring oil path is arranged on the external sealing box. Compared with the traditional sealing device, the rotary sealing device can bear higher hydraulic pressure and higher relative speed, thereby realizing leakage-free transmission of hydraulic oil between a movable part and the static part.
Description
Technical field
The present invention relates to a kind of seal arrangement, relate in particular to a kind of high pressure rotary sealing device.
Background technique
In Hydraulic Power Transmission System, run into hydraulic oil transmission problem between high-speed rotary part and the static part through regular meeting, and rotary component is provided with silicon carbide sealed ring, and will seal between silicon carbide sealed ring and the static part by the radially outer elastic force of spring, hydraulic oil can produce a power opposite with spring force to silicon carbide sealed ring, like this, and during the overpressure of hydraulic oil, reduce radially outer the making a concerted effort that silicon carbide sealed ring is subjected to, thus the leakage that will produce hydraulic oil; When the hypotony of hydraulic oil, increase radially outer the making a concerted effort that silicon carbide sealed ring is subjected to, thereby rotary component is when high speed rotating and the wearing and tearing between static part aggravations, cause reduce the working life of silicon carbide sealed ring, the transmission of hydraulic oil between rotary component and the static part is seriously not smooth like this, has influenced carrying out smoothly of machine proper functioning and production.
Summary of the invention
Technical problem to be solved by this invention is: a kind of high pressure rotary sealing device is provided, this rotating sealing device is compared present seal arrangement can bear higher hydraulic pressure and the relative velocity of Geng Gao, thereby has realized the nothing leakage transmission of hydraulic oil between the sound parts.
For solving the problems of the technologies described above, technological scheme of the present invention is: comprise being used for the stationary ring that is sealed and matched with static part and being used for the external sealed box that stuffing box gland is contained in the rotary component periphery, described external sealed box is fixedlyed connected with described stationary ring, described stationary ring is provided with the stationary ring oil circuit that is communicated with oil circuit on the static part, and described external sealed box is provided with the external sealed box oil circuit that the oil circuit on the rotary component and stationary ring oil circuit are communicated with.
As a kind of preferred scheme, described external sealed box comprises that stuffing box gland respectively is contained in the interior ring and the outer shroud of described rotary component periphery, ring is provided with all the time the interior ring oil circuit that is communicated with oil circuit on the described rotary component in described, described outer shroud is fixed in described interior ring end, be installed with seal ring between described outer shroud and the interior ring, described seal ring is provided with the seal ring oil circuit that is communicated with described stationary ring oil circuit and interior ring oil circuit respectively, and described interior ring oil circuit and seal ring oil circuit constitute external sealed box oil circuit.
As a kind of preferred scheme, the inner peripheral surface of described interior ring is provided with the groove of annular, and the sealed cavity between described groove and the described rotary component outer circumferential face forms the buffering oil circuit, and the oil circuit of described rotary component exports and is communicated with described buffering oil circuit.
As a kind of preferred scheme, the cross section of described groove is a triangle.
As a kind of preferred scheme, described seal ring is by the end face of bolt in described stationary ring.
As a kind of preferred scheme, the end face that described outer shroud encircles in described by bolt.
After having adopted technique scheme, effect of the present invention is: because described high pressure rotary sealing device, comprise and be used for the stationary ring that is sealed and matched with static part and be used for the external sealed box that stuffing box gland is contained in the rotary component periphery, described external sealed box is fixedlyed connected with described stationary ring, described stationary ring is provided with the stationary ring oil circuit that is communicated with oil circuit on the static part, described external sealed box be provided with rotary component on the external sealed box oil circuit that the time is communicated with all the time of oil circuit rotation, be communicated with between described stationary ring oil circuit and the external sealed box oil circuit, therefore, rotary component when rotated, be tightly connected between external sealed box and the rotary component, stationary ring and static part are sealed and matched, hydraulic oil enters into the stationary ring oil circuit from the oil circuit on the rotary component through external sealed box oil circuit, flow into the oil circuit on the static part then, the transmission of hydraulic oil is separate with sealing, sealing between rotary component and the external sealed box is just played seal action and is not subjected to the pressure influence of hydraulic oil, between wearing and tearing also just belong to normal wearing and tearing, its degree of wear changes little, so just adapt to the more hydraulic oil transmission of high pressure, the silicon carbide sealed ring that uses before replacing simultaneously, reduced the degree of wear, thereby can bear higher rotary pressure, and realize the nothing leakage transmission of hydraulic oil between the sound parts.
Because the inner peripheral surface that encircles in described is provided with the groove of annular, the sealed cavity between described groove and the described rotary component outer circumferential face forms the buffering oil circuit again, and the oil circuit outlet of described rotary component is communicated with described buffering oil circuit.Therefore, when encircling oil circuit in the oil circuit of hydraulic oil from rotary component is input to, can obtain buffering on the oil circuit in buffering, thereby guarantee smooth constantly connection the between oil circuit on the rotary component and the interior ring oil circuit, realize that the nothing of hydraulic oil between the sound parts leak smooth transmission.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Accompanying drawing is the structure sectional view of the embodiment of the invention;
In the accompanying drawing: 1. rotary component; 2. static part; 3. external sealed box; 31. outer shroud; 32. interior ring; 321. interior ring oil circuit; 33. seal ring; 331. seal ring oil circuit; 34. groove; 4. stationary ring; 41. stationary ring oil circuit.
Embodiment
A kind of high pressure rotary sealing device, as shown in drawings, it comprises and is used for the stationary ring 4 that is sealed and matched with static part 2 and is used for the external sealed box 3 that stuffing box gland is contained in rotary component 1 periphery, described external sealed box 3 is fixedlyed connected with described stationary ring 4, described stationary ring 4 is provided with the stationary ring oil circuit 41 that is communicated with oil circuit on the static part 2, and described external sealed box 3 is provided with the external sealed box oil circuit that the oil circuit on the rotary component 1 and stationary ring oil circuit 41 are communicated with.Rotary component 1 of the present invention is a running shaft.
Described external sealed box 3 comprises that stuffing box gland respectively is contained in the interior ring 32 and the outer shroud 31 of described rotary component 1 periphery, ring 32 is provided with the interior ring oil circuit 321 that is communicated with oil circuit on the described rotary component 1 in described, described outer shroud 31 is fixed in described interior ring 32 ends, be installed with seal ring 33 between described outer shroud 31 and the interior ring 32, described seal ring 33 is provided with the seal ring oil circuit 331 that is communicated with described stationary ring oil circuit 41 and interior ring oil circuit 321 respectively, and described interior ring oil circuit 321 and seal ring oil circuit 331 constitute external sealed box oil circuits.
The inner peripheral surface of ring 32 is provided with the groove 34 of annular in described, sealed cavity between described groove 34 and described rotary component 1 outer circumferential face forms the buffering oil circuit, the oil circuit outlet of described rotary component 1 is communicated with described buffering oil circuit, preferably, the oil circuit outlet of described rotary component 1 is a plurality of and even layout, when encircling oil circuit 321 in the oil circuit of hydraulic oil from rotary component 1 is input to, can on the buffering oil circuit, obtain buffering, thereby guarantee smooth constantly connection the between oil circuit on the rotary component 1 and the interior ring oil circuit 321, realized that the nothing of hydraulic oil between the sound parts leak smooth transmission.Preferably, the cross section of described groove 34 is a triangle, can certainly be other shape, such as, semicircle, trapezoidal etc.
Among the present invention, described seal ring 33 is by the end face of bolt in described stationary ring 4.Described outer shroud 31 encircles 32 end face in described by bolt.Like this, connect by bolt encircle 32 in just can guaranteeing, radially relative position between seal ring 33, stationary ring 4 and the outer shroud 31, thereby the friction in can making between ring 32, outer shroud 31 and rotary component 1 periphery, friction between stationary ring 4 and the static part 2 reaches a more satisfactory state, thereby reduce its frictional loss, improved working life, guarantee the nothing leakage smooth transmission of hydraulic oil between the sound parts, simultaneously, the bolt connection also can be so that install and change.
Working principle of the present invention is: the running shaft among rotary component 1 the present invention just when rotated, interior ring 32, outer shroud 31 is respectively by being tightly connected between seal ring and the rotary component 1, stationary ring 4 is sealed and matched with static part 2, hydraulic oil passes through interior ring oil circuit 321 from the oil circuit on the rotary component 1, enter into seal ring oil circuit 331, enter into stationary ring oil circuit 41 then, flow into the oil circuit on the static part 2 at last, the transmission of hydraulic oil is separate with sealing, sealing between rotary component 1 and the external sealed box 3 is just played seal action and is not subjected to the pressure influence of hydraulic oil, wearing and tearing between it also just belong to normal wearing and tearing, so just adapt to the more hydraulic oil transmission of high pressure, the silicon carbide sealed ring that uses before replacing simultaneously, reduced the degree of wear, thereby can bear higher rotary pressure, and realize the nothing leakage transmission of hydraulic oil between the sound parts.
Claims (6)
1. high pressure rotary sealing device, it is characterized in that: comprise being used for the stationary ring that is sealed and matched with static part and being used for the external sealed box that stuffing box gland is contained in the rotary component periphery, described external sealed box is fixedlyed connected with described stationary ring, described stationary ring is provided with the stationary ring oil circuit that is communicated with oil circuit on the static part, and described external sealed box is provided with the external sealed box oil circuit that the oil circuit on the rotary component and stationary ring oil circuit are communicated with.
2. high pressure rotary sealing device as claimed in claim 1, it is characterized in that: described external sealed box comprises that stuffing box gland respectively is contained in the interior ring and the outer shroud of described rotary component periphery, ring is provided with the interior ring oil circuit that is communicated with oil circuit on the described rotary component in described, described outer shroud is fixed in described interior ring end, be installed with seal ring between described outer shroud and the interior ring, described seal ring is provided with the seal ring oil circuit that is communicated with described stationary ring oil circuit and interior ring oil circuit respectively, and described interior ring oil circuit and seal ring oil circuit constitute external sealed box oil circuit.
3. high pressure rotary sealing device as claimed in claim 2, it is characterized in that: the inner peripheral surface of ring is provided with the groove of annular in described, sealed cavity between described groove and the described rotary component outer circumferential face forms the buffering oil circuit, and the oil circuit outlet of described rotary component is communicated with described buffering oil circuit.
4. high pressure rotary sealing device as claimed in claim 3 is characterized in that: the cross section of described groove is a triangle.
5. high pressure rotary sealing device as claimed in claim 2 is characterized in that: described seal ring is by the end face of bolt in described stationary ring.
6. high pressure rotary sealing device as claimed in claim 2 is characterized in that: the end face that described outer shroud encircles in described by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100700965A CN102147014A (en) | 2011-03-23 | 2011-03-23 | High-pressure rotary sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100700965A CN102147014A (en) | 2011-03-23 | 2011-03-23 | High-pressure rotary sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102147014A true CN102147014A (en) | 2011-08-10 |
Family
ID=44421417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100700965A Pending CN102147014A (en) | 2011-03-23 | 2011-03-23 | High-pressure rotary sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102147014A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200989442Y (en) * | 2006-12-04 | 2007-12-12 | 成都天保机械制造有限公司 | Hydraulic self-balancing transmission sealing device |
| CN201547435U (en) * | 2009-10-29 | 2010-08-11 | 岳阳科德科技有限责任公司 | High-pressure sealed rotary joint |
| EP2246597A1 (en) * | 2008-02-25 | 2010-11-03 | Eagle Industry Co., Ltd. | Shaft sealing device |
| CN202048212U (en) * | 2011-03-23 | 2011-11-23 | 苏州瑞维液压科技有限公司 | High pressure rotary sealing device |
-
2011
- 2011-03-23 CN CN2011100700965A patent/CN102147014A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200989442Y (en) * | 2006-12-04 | 2007-12-12 | 成都天保机械制造有限公司 | Hydraulic self-balancing transmission sealing device |
| EP2246597A1 (en) * | 2008-02-25 | 2010-11-03 | Eagle Industry Co., Ltd. | Shaft sealing device |
| CN201547435U (en) * | 2009-10-29 | 2010-08-11 | 岳阳科德科技有限责任公司 | High-pressure sealed rotary joint |
| CN202048212U (en) * | 2011-03-23 | 2011-11-23 | 苏州瑞维液压科技有限公司 | High pressure rotary sealing device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110810 |