CN104279385B - A kind of high leakproofness swivel joint - Google Patents
A kind of high leakproofness swivel joint Download PDFInfo
- Publication number
- CN104279385B CN104279385B CN201410395636.0A CN201410395636A CN104279385B CN 104279385 B CN104279385 B CN 104279385B CN 201410395636 A CN201410395636 A CN 201410395636A CN 104279385 B CN104279385 B CN 104279385B
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- CN
- China
- Prior art keywords
- axle sleeve
- ring
- swivel joint
- sealing
- rotating shaft
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
- F16L27/0808—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation
- F16L27/0824—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with ball or roller bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The present invention relates to swivel joint technical field, a kind of high leakproofness swivel joint is disclosed, comprise hollow rotating shaft, axle sleeve, one end of axle sleeve is provided with end cap, the other end of axle sleeve is provided with connector, between hollow rotating shaft and axle sleeve, be provided with bearing, between hollow rotating shaft and axle sleeve, be also provided with backbone sealing ring, backbone sealing ring comprises skeleton, sealing ring body, the inner ring of sealing ring body extends to form the parallel seal lip of twice, the lateral surface inner ring of two seals lip is provided with sealing cone, the outer wall of hollow rotating shaft is provided with cannelure, two sides of cannelure are the conical surface of fitting with sealing cone, between the inner ring of seal lip and the bottom land of cannelure, form gap, the outer ring sleeve of seal lip is provided with spring pressure ring, between two seals lip medial surface, be evenly provided with some elastic supporting member for supporting optical member. therefore, the present invention has wear automatic-compensation, good seal performance, the beneficial effect of long service life.
Description
Technical field
The present invention relates to swivel joint technical field, relate in particular to a kind of high leakproofness swivel joint.
Background technology
At present, in industries such as metallurgy, boats and ships lifting, chemical industry, pharmacy, in the rigid conduit of conveying high-pressure fluid, between two pipelines, needing to install swivel joint in relative rotation, swivel joint generally comprises a hollow shaft, axle sleeve, connector, and connector is connected with fixing pipeline, and hollow shaft is connected with the pipeline of rotation, hollow shaft is rotated in axle sleeve, thereby realizes being connected of rotated pipe and fixed-piping. due to hollow shaft high speed rotating, high-pressure fluid is carried in hollow shaft, in order to prevent fluid leakage between hollow shaft and axle sleeve, between hollow shaft periphery and axle sleeve, sealing ring is installed, hollow shaft high speed rotating, sealing ring is easy to wearing and tearing, and rotated pipe in rotation process to bringing vibration, thereby cause having axial runout between hollow shaft and axle sleeve, this can aggravate again the wearing and tearing of sealing ring, so just cause will changing at set intervals swivel joint or change sealing ring, and long-time through-flow body in general high voltage fluid line, replacing swivel joint just must stop fluid and flow, various device all needs to suspend, therefore how to improve the sealing between hollow shaft and axle sleeve, slow down ring wear, improving swivel joint is the Focal point and difficult point of swivel joint design service life.
For example: Chinese patent Granted publication number: CN201288908Y, August 12 2009 Granted publication day, a kind of rigid rotating joint is disclosed, comprise the static hollow housing being connected with nested structure with quill shaft and relatively rotate hollow housing, cover inwall has step, there is lip backbone sealing ring this step end face and quill shaft end face junction, and wherein support frame used is cylindrically coiled spring ring, and cylindrically coiled spring ring is by banded reed coiling. in the time that lip backbone sealing ring inner ring weares and teares, by the circumferential pressure of cylindrically coiled spring ring, the inner ring of lip backbone sealing ring is fitted with hollow rotating shaft lateral wall all the time, thereby remain sealing, increase the service life of sealing ring. the inner ring lip wear extent that the sealing ring of this kind of structure allows is larger, if seal failure after conventional seals circle inner ring wearing and tearing 1mm, even and lip backbone sealing ring inner ring lip wearing and tearing 3mm also can keep fitting with hollow rotating shaft outer wall, but just bring so new problem, due to after sealing ring inner ring lip wear extent increases to a certain degree, can cause the outer poor increase of circumference of interior circumference and hollow rotating shaft, and in order to ensure ring wear resistant, the sealing ring hardness that swivel joint inner seal ring self hardness connects far above static state, therefore the poor sealing ring that can cause when larger of girth creases easily its inner ring part under the powerful compression of cylindrically coiled spring ring, thereby cause oil liquid leakage, and under the effect of ring spring, there is certain torsion when the wearing and tearing of some backbone sealing ring lip inner rings, and so just can overcome inner ring wrinkling, still also cause the skew of sealing surface, thereby caused sealing decline.
Summary of the invention
The present invention is in order to overcome in swivel joint of the prior art poor sealing performance between hollow rotating shaft and axle sleeve, easily cause the deficiency of oil liquid leakage, provide good seal performance between a kind of hollow rotating shaft and axle sleeve, the high leakproofness swivel joint of energy automatic compensation sealing when ring wear.
To achieve these goals, the present invention adopts following technical scheme:
A kind of high leakproofness swivel joint, comprise hollow rotating shaft, axle sleeve, one end of axle sleeve is provided with end cap, the other end of axle sleeve is provided with connector, between described hollow rotating shaft and axle sleeve, be provided with bearing, between described hollow rotating shaft and axle sleeve, be also provided with backbone sealing ring, described backbone sealing ring comprises skeleton, sealing ring body, the inner ring of described sealing ring body extends to form the parallel seal lip of twice, the lateral surface inner ring of two seals lip is provided with sealing cone, the outer wall of described hollow rotating shaft is provided with cannelure, two sides of described cannelure are the conical surface of fitting with sealing cone, between the inner ring of seal lip and the bottom land of cannelure, form gap, the outer ring sleeve of seal lip is provided with spring pressure ring, between two seals lip medial surface, be evenly provided with some elastic supporting member for supporting optical member.
The two sides gluing, sealing of seal lip and hollow rotating shaft cannelure, simultaneously by spring pressure ring, elastic supporting member for supporting optical member to sealing cone radially, axial compression, along with use, sealing cone constantly weares and teares, sealing cone still can keep and cannelure sidewall gluing, sealing, and sealing contact surface also increases along with wearing and tearing, sealing effectiveness is better; Owing to passing through conical surface seal, even when therefore wear extent is larger, seal lip can be not wrinkling yet, even hollow rotating shaft rotational vibrations, axial runout, seal lip can produce adaptive deformation fine setting according to the axial runout of rotating shaft under spring pressure ring, elastic supporting member for supporting optical member effect, remains sealing, and therefore this kind of swivel joint overall sealing performance is good, energy automatic compensation sealing when seal lip wearing and tearing, long service life.
As preferably, two side roof parts of described cannelure extend to form and form sealing bulge loop. When backbone sealing ring has just packed into, the sealing cone in seal lip only with cannelure contacts side surfaces, along with the wearing and tearing of seal lip, sealing cone can increase, now the last branch of sealing cone contacts with sealing bulge loop, further enhanced leaktightness.
As preferably, described elastic supporting member for supporting optical member is stage clip or reed.
As preferably, described elastic supporting member for supporting optical member is reed, and two seals lip medial surface is respectively equipped with support ring, and described reed is V-shaped, and the openend of reed extends to form joint face, and between described joint face and support ring, bolt is connected. Support ring can prevent the distortion of seal lip local compression.
As preferably, the bottom of described reed is provided with pull bar, stretch out outside axle sleeve through backbone sealing ring the outer end of described pull bar, the outside of described axle sleeve is provided with warning lamp, the outer end of described pull bar is connected with warning lamp, in the time that pull bar moves a certain distance to the axle center of axle sleeve, pull bar triggers warning lamp and opens. Along with the wearing and tearing of sealing cone, the opening of reed increases, reed bottom axially produces displacement towards axle sleeve, in the time that displacement reaches a certain amount of, now thinks that seal lip has reached inefficacy edge (being that further wearing and tearing can cause seal failure), pull bar can synchronously produce a displacement identical with reed, thereby the switch in triggering warning lamp, warning lamp is opened, thereby reminds maintenance personal, backbone sealing ring will lose efficacy, and need to change immediately; And common swivel joint only has and just can change or often change at regular intervals when occurring while leakage, leak to change again and easily cause the accident, due to installation environment difference, wearing-in period is also different, and periodic replacement easily causes waste.
As preferably, described axle sleeve lateral wall is provided with groove, and warning lamp is arranged in groove by mount pad, is also provided with lever in mount pad, and the outer end, long limit of lever is connected with warning lamp switch, and minor face and the pull bar of lever are hinged. The displacement of pull bar is by lever amplification, and the lever other end is depressed warning lamp switch.
As preferably, the minor face of described lever is arranged with telescopic, and outer end and the pull bar of described telescopic are hinged, and the outside of described pull bar is arranged with fairlead. Fairlead ensures that pull bar pulls resistance little, and telescopic prevents that lever rotation from causing pull bar and interfering around.
Therefore, the present invention has following beneficial effect: (1) seal lip is along with wearing and tearing can compensate sealing, long service life automatically; (2) along with wearing and tearing, sealing surface increases gradually, further enhanced leaktightness; (3), in the time that the wear extent of seal lip reaches inefficacy edge, can send warning by warning lamp, prompting changing.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the local structure for amplifying schematic diagram in A place in Fig. 1.
In figure: hollow rotating shaft 1 axle sleeve 2 end cap 3 connector 4 bearing 5 backbone sealing ring 6 cannelures 7 seal bulge loop 8 reed 9 pull bar 10 warning lamp 11 mount pad 12 lever 13 telescopic 14 fairlead 15 skeleton 60 sealing ring body 61 seal lip 610 sealing cone 611 spring pressure ring 612 support ring 613 joint faces 90.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
A kind of high leakproofness swivel joint as shown in Figure 1, comprise hollow rotating shaft 1, axle sleeve 2, one end of axle sleeve is provided with end cap 3, the other end of axle sleeve is provided with connector 4, connector is connected with axle sleeve bolt, the joint face of connector and axle sleeve is provided with seal washer, between hollow rotating shaft and axle sleeve, be provided with bearing 5, between hollow rotating shaft 1 and axle sleeve 2, be also provided with backbone sealing ring 6, backbone sealing ring comprises skeleton 60, sealing ring body 61, the inner ring of sealing ring body 61 extends to form the parallel seal lip of twice 610, the lateral surface inner ring of two seals lip is provided with sealing cone 611, the outer wall of hollow rotating shaft 1 is provided with cannelure 7, two sides of cannelure are the conical surface of fitting with sealing cone, two side roof parts of cannelure 7 extend to form and form sealing bulge loop 8, between the inner ring of seal lip 610 and the bottom land of cannelure, form gap, the outer ring sleeve of seal lip 610 is provided with spring pressure ring 612, between two seals lip medial surface, be evenly provided with some elastic supporting member for supporting optical member, elastic supporting member for supporting optical member can be stage clip or reed, in the present embodiment, elastic supporting member for supporting optical member is reed 9.
As shown in Figure 2, two seals lip medial surface is respectively equipped with support ring 613, reed is V-shaped, the openend of reed extends to form joint face 90, between joint face and support ring, bolt is connected, the bottom of reed 9 is provided with pull bar 10, stretch out outside axle sleeve through backbone sealing ring the outer end of pull bar, axle sleeve 2 lateral walls are provided with groove, warning lamp 11 is arranged in groove by mount pad 12, in mount pad, be also provided with lever 13, the outer end, long limit of lever is connected with warning lamp switch, the minor face of lever 13 is arranged with telescopic 14, outer end and the pull bar of telescopic are hinged, the outside of pull bar is arranged with fairlead 15.
The two sides gluing, sealing of cannelure on seal lip 610 and hollow rotating shaft 1, simultaneously by spring pressure ring, elastic supporting member for supporting optical member to sealing cone radially, axial compression, along with use, sealing cone constantly weares and teares, sealing cone still can keep and cannelure sidewall gluing, sealing, and sealing contact surface also increases along with wearing and tearing, sealing effectiveness is better, owing to passing through conical surface seal, even when therefore wear extent is larger, seal lip can be not wrinkling yet, when hollow rotating shaft rotational vibrations, when axial runout, seal lip can be at spring pressure ring, under elastic supporting member for supporting optical member effect, produce adaptive deformation fine setting according to the axial runout of rotating shaft, remain sealing, therefore this kind of swivel joint overall sealing performance is good, energy automatic compensation sealing when seal lip wearing and tearing, long service life, along with the wearing and tearing of sealing cone, the opening of reed increases, reed bottom axially produces displacement towards axle sleeve, in the time that displacement reaches a certain amount of, now think that seal lip has reached inefficacy edge (being that further wearing and tearing can cause seal failure), pull bar can synchronously produce a displacement identical with reed, the displacement of pull bar is after the amplification of lever, switch under the side pressure of the long limit of lever in warning lamp, warning lamp is opened, thereby remind maintenance personal, backbone sealing ring will lose efficacy, and need to change immediately, and common swivel joint only has and just can change or often change at regular intervals when occurring while leakage, leak to change again and easily cause the accident, due to installation environment difference, wearing-in period is also different, and periodic replacement easily causes waste. therefore, the present invention has following beneficial effect: (1) seal lip is along with wearing and tearing can compensate sealing, long service life automatically, (2) along with wearing and tearing, sealing surface increases gradually, further enhanced leaktightness, (3), in the time that the wear extent of seal lip reaches inefficacy edge, can send warning by warning lamp, prompting changing.
Claims (7)
1. a high leakproofness swivel joint, comprise hollow rotating shaft (1), axle sleeve (2), one end of axle sleeve is provided with end cap (3), the other end of axle sleeve is provided with connector (4), between described hollow rotating shaft and axle sleeve, be provided with bearing (5), it is characterized in that, described connector and the joint face of axle sleeve are provided with seal washer, between described hollow rotating shaft (1) and axle sleeve (2), be also provided with backbone sealing ring (6), described backbone sealing ring comprises skeleton (60), sealing ring body (61), the inner ring of described sealing ring body (61) extends to form the parallel seal lip of twice (610), the lateral surface inner ring of two seals lip is provided with sealing cone (611), the outer wall of described hollow rotating shaft (1) is provided with cannelure (7), two sides of described cannelure are the conical surface of fitting with sealing cone, between the inner ring of seal lip (610) and the bottom land of cannelure, form gap, the outer ring sleeve of seal lip (610) is provided with spring pressure ring (612), between two seals lip medial surface, be evenly provided with some elastic supporting member for supporting optical member.
2. a kind of high leakproofness swivel joint according to claim 1, is characterized in that, two side roof parts of described cannelure (7) extend to form sealing bulge loop (8).
3. a kind of high leakproofness swivel joint according to claim 1, is characterized in that, described elastic supporting member for supporting optical member is stage clip or reed.
4. a kind of high leakproofness swivel joint according to claim 1 and 2, it is characterized in that, described elastic supporting member for supporting optical member is reed (9), two seals lip medial surface is respectively equipped with support ring (613), described reed is V-shaped, the openend of reed extends to form joint face (90), and between described joint face and support ring, bolt is connected.
5. a kind of high leakproofness swivel joint according to claim 4, it is characterized in that, the bottom of described reed (9) is provided with pull bar (10), stretch out outside axle sleeve through backbone sealing ring the outer end of described pull bar, the outside of described axle sleeve (2) is provided with warning lamp (11), the outer end of described pull bar is connected with warning lamp, and in the time that pull bar moves a certain distance to the axle center of axle sleeve, pull bar triggers warning lamp and opens.
6. a kind of high leakproofness swivel joint according to claim 5, it is characterized in that, described axle sleeve (2) lateral wall is provided with groove, warning lamp is arranged in groove by mount pad (12), in mount pad, be also provided with lever (13), the outer end, long limit of lever is connected with warning lamp switch, and minor face and the pull bar of lever are hinged.
7. a kind of high leakproofness swivel joint according to claim 6, is characterized in that, the minor face of described lever (13) is arranged with telescopic (14), and outer end and the pull bar of described telescopic are hinged, and the outside of described pull bar is arranged with fairlead (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395636.0A CN104279385B (en) | 2014-08-13 | 2014-08-13 | A kind of high leakproofness swivel joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395636.0A CN104279385B (en) | 2014-08-13 | 2014-08-13 | A kind of high leakproofness swivel joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104279385A CN104279385A (en) | 2015-01-14 |
| CN104279385B true CN104279385B (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410395636.0A Active CN104279385B (en) | 2014-08-13 | 2014-08-13 | A kind of high leakproofness swivel joint |
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| CN (1) | CN104279385B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909897B (en) * | 2016-06-30 | 2017-11-21 | 刘延俊 | A kind of automatic compensation type high-pressure rotary joint |
| CN106015564B (en) * | 2016-07-25 | 2018-01-26 | 湖州电动滚筒有限公司 | A kind of novel anti-leakage is oily, motorized pulleys easy to assemble |
| WO2018035735A1 (en) * | 2016-08-24 | 2018-03-01 | 中为(上海)能源技术有限公司 | Oxidizing agent injection equipment for underground coal gasification process and application thereof |
| CN108869554A (en) * | 2018-08-31 | 2018-11-23 | 无锡三立轴承股份有限公司 | Bearing seal |
| CN111779904B (en) * | 2020-06-04 | 2021-09-28 | 山东恒旺集团有限公司 | Hydraulic rotary joint for rotation of excavator |
| CN112879420B (en) * | 2021-01-14 | 2022-11-04 | 南京超晶光电新材料科技研究院有限公司 | Ceramic bearing |
| CN113007350B (en) * | 2021-01-29 | 2022-10-04 | 东风柳州汽车有限公司 | Sealing element, waterway connecting mechanism and combination method thereof |
| CN113007352A (en) * | 2021-03-15 | 2021-06-22 | 沈阳大学 | X-shaped double-elastic pressing rotary sealing ring |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US2330197A (en) * | 1939-08-31 | 1943-09-28 | All Flex Corp | Flexible pipe joint |
| US2382375A (en) * | 1942-01-09 | 1945-08-14 | All Flex Corp | Flexible pipe coupling |
| DE2012240A1 (en) * | 1970-03-14 | 1971-10-07 | Jahndorf H | Lip seal for swivel joints |
| US5653476A (en) * | 1995-09-18 | 1997-08-05 | National Science Council Of Republic Of China | Leakproof rotary joint |
| CN101761716A (en) * | 2010-03-10 | 2010-06-30 | 无锡市长江液压缸厂 | Seal swivel joint |
| CN203162157U (en) * | 2013-02-05 | 2013-08-28 | 陈义华 | Pneumatic sealing device for crusher |
| CN203560440U (en) * | 2013-11-29 | 2014-04-23 | 西安航空发动机集团机电石化设备有限公司 | Sealing device applied to rolling mill |
| CN103609248A (en) * | 2013-12-06 | 2014-03-05 | 浙江亿森机械有限公司 | Gear train sealing structure of harvester |
| CN204153366U (en) * | 2014-08-13 | 2015-02-11 | 杭州优能特旋转接头制造厂 | A kind of rotary joint structure |
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2014
- 2014-08-13 CN CN201410395636.0A patent/CN104279385B/en active Active
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| CN104279385A (en) | 2015-01-14 |
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Address after: 311200 No. 120, zengjiaqiao community, Xintang street, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou younengte rotary adapter Precision Manufacturing Co.,Ltd. Address before: 311200 No. 120, zengjiaqiao community, Xintang street, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU YOUNENGTE ROTATION CONNECTOR MANUFACTURING FACTORY |
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