CN201368279Y - Rotating joint - Google Patents
Rotating joint Download PDFInfo
- Publication number
- CN201368279Y CN201368279Y CNU2009200352221U CN200920035222U CN201368279Y CN 201368279 Y CN201368279 Y CN 201368279Y CN U2009200352221 U CNU2009200352221 U CN U2009200352221U CN 200920035222 U CN200920035222 U CN 200920035222U CN 201368279 Y CN201368279 Y CN 201368279Y
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- Prior art keywords
- stationary seal
- seal ring
- ring
- wear
- end cap
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- Expired - Lifetime
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Abstract
The utility model relates to a rotating joint. A fluid passage is arranged on an end cover. A shell is internally connected with a rotating outer tube rotatablely through alternately arranged bearings, a spacer bush and an elastic outer check ring are arranged between two adjacent bearings, the inner wall of the shell at one side of the bearing away from the end cover is provided with an inner check ring pressing against the side wall of the bearing, the inner part of the shell close to one side of the end cover is provided with a wear-proof moving ring, the inner part of the end cover close to one side of the shell is provided with a stationary seal ring by sliding inserted connection, and a plurality of compensation springs arranged around an inner pore of the stationary seal ring are compressed between the end surface of the stationary seal ring and the end cover. The end cover is provided with a rolling stopper pin, the axis of which is parallel to that of the inner pore of the stationary seal ring. The stationary seal ring is cut with a sliding way which can be conveniently inserted with the rolling stopper pin, the end surface of the stationary seal ring facing the wear-proof moving ring is provided with a convex ring surrounding the inner pore of the stationary seal ring, and the convex ring presses against the corresponding end surface of the wear-proof moving ring. The rotating joint has the advantages of no leakage, uniform abrasion of the stationary seal ring, convenient integral disassembly and assembly, and the like.
Description
Technical field
The utility model relates to a kind of mechanical seal swivel joint that heat-conduction medium (water or conduction oil) is transported to rotation or the roller equipment of to-and-fro motion or the roller equipment of heat-conduction medium (water or conduction oil) from rotation or to-and-fro motion is failed back of being used for.
Background technique
For a long time, swivel joint is used in the production of adopting rotating drum to heat or cooling off always, for example, and in papermaking, weaving, chemical fibre, printing and dyeing, rubber, steel-making and other similar industry.Thereby loading spring had increased the kinetic energy and the heat-energy losses of medium in the design swivel joint in heat-conduction medium is flowed through the zone in the past, and spring damages easily and causes joint weak point in working life.Adopted a loading spring to compensate wearing and tearing between the motive sealing friction pair in the past in the design swivel joint, because of the decentraction between loading spring and the compensation motive sealing friction pair or because of the equipment vibrations, reasons such as eccentric operating can make the wearing and tearing between the motive sealing friction pair inhomogeneous.Sealing O shape was enclosed easy landing in the design swivel joint in the past.Do not have quarantine measures between design swivel joint middle (center) bearing and the motive sealing friction pair in the past, be easy to directly cause bearing failure in case the motive sealing friction pair loses efficacy.Need joint is pulled down from connection device when design conversion adapter Sealing damages maintenance or replacing in the past, increased the difficulty of maintenance time and maintenance.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of good sealing effect be provided, do not have reveal, the stationary seal ring wearing and tearing evenly, the swivel joint of convenient, the long service life of integral disassembly, assembly.
The technological scheme that provides according to the utility model, described swivel joint, the housing that comprises end cap and tubulose, on end cap, be provided with the fluid passage, in housing, be rotatably connected to the rotation outer tube by the bearing that is provided with at interval, between adjacent two bearings, be provided with back-up ring outside spacer and the elasticity, be provided with the inner shield ring that offsets with this bearing sidewall at bearing one side body inwall away from end cap, near being provided with in the housing of end cap one side and rotating the wear-resisting rotating ring that the outer tube end offsets, near being provided with sliding plug in the end cap of housing one side stationary seal ring is being arranged, between stationary seal ring end face and end cap, be compressed with some counterbalance springs round the stationary seal ring arrangement of bores, on end cap, be provided with the spline pin, described spline pin axis and stationary seal ring endoporus parallel axes, on stationary seal ring, offer and be convenient to the chute that the spline pin inserts, have around the bulge loop of stationary seal ring endoporus at the end face of stationary seal ring in the face of wear-resisting rotating ring, described bulge loop offsets with the corresponding end face of wear-resisting rotating ring.
On the housing between the adjacent two bearings, offer tank filler sleeve.Step body outside wear-resisting rotating ring end outer wall is provided with, rotation outer tube end inwall offer with outside step body cooperate the interior step body of installation.On the interior step body of rotation outer tube, offer circumferential interior installation groove, in interior installation groove, be provided with elasticity O type ring.Offer circumferential outer installation groove at the stationary seal ring outer wall, install outside and be provided with elasticity O type ring in the groove.
The connecting bend that on end cap, is spirally connected, on connecting bend fixedly connected fixing in pipe, described fixing in pipe pass to insert behind the endoporus of stationary seal ring and wear-resisting rotating ring and rotate the interior segment distance of outer tube.
In inner walls circumferential divider wall is set, and the bearing sidewall leans on mutually with this divider wall near end cap one side.Offer air outlet hole on housing, described air outlet hole the inner is positioned at the bulge loop of stationary seal ring and the wear-resisting rotating ring place that offsets.
The utlity model has good sealing effect, do not have to reveal, the stationary seal ring wearing and tearing evenly, integral disassembly, assembly is convenient and advantage such as long service life.
Description of drawings
Fig. 1 is the structural drawing of single channel swivel joint of the present utility model.
Fig. 2 is the structural drawing of Twin channel swivel joint of the present utility model.
Fig. 3 is the utility model stationary seal ring enlarged diagram.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in the figure: this swivel joint, the housing 2 that comprises end cap 1 and tubulose, on end cap 1, be provided with the fluid passage, in housing 2, be rotatably connected to rotation outer tube 4 by the bearing 3 that is provided with at interval, between adjacent two bearings 3, be provided with back-up ring 9 outside spacer 11 and the elasticity, be provided with the inner shield ring 10 that offsets with this bearing 3 sidewalls at bearing 3 one side bodies 2 inwalls away from end cap 1, near being provided with in the housing 2 of end cap 1 one sides and rotating the wear-resisting rotating ring 6 that outer tube 4 ends offset, near being provided with sliding plug in the end cap 1 of housing 2 one sides stationary seal ring 5 is being arranged, between stationary seal ring 5 end faces and end cap 1, be compressed with some counterbalance springs 7 round stationary seal ring 5 arrangement of bores, on end cap 1, be provided with spline pin 8, described spline pin 8 axis and stationary seal ring 5 endoporus parallel axes, on stationary seal ring 5, offer and be convenient to the chute 5a that spline pin 8 inserts, have around the bulge loop 5b of stationary seal ring 5 endoporus at the end face of stationary seal ring 5 in the face of wear-resisting rotating ring 6, described bulge loop 5b offsets with wear-resisting rotating ring 6 corresponding end faces.
On the housing 2 between the adjacent two bearings 3, offer drain hole 16.Step body 6a outside wear-resisting rotating ring 6 end outer walls are provided with, rotation outer tube 4 end inwalls offer with outside step body cooperate the interior step body 4a of installation.On the interior step body 4a of rotation outer tube 4, offer circumferential interior installation groove 4b, in interior installation groove 4b, be provided with elasticity O type ring 12.Offer circumferential outer installation groove 5c at stationary seal ring 5 outer walls, install outside and be provided with elasticity O type ring 12 in the groove 5c, as shown in Figure 1, this is the single channel swivel joint.
The connecting bend 14 that on end cap 1, is spirally connected, on connecting bend 14 fixedly connected fixing in pipe 13, described fixing in pipe 13 insert rotation outer tube 4 interior segment distances after passing the endoporus of stationary seal ring 5 and wear-resisting rotating ring 6, as shown in Figure 2, this is the Twin channel swivel joint.
At housing 2 inwalls circumferential divider wall 2a is set, and bearing 3 sidewalls lean on mutually with this divider wall 2a near end cap 1 one sides.Offer air outlet hole 15 on housing 2, described air outlet hole 15 the inners are positioned at the bulge loop 5b of stationary seal ring 5 and wear-resisting rotating ring 6 place that offsets.
The related rotary joint structure (Twin channel) of the utility model as shown in Figure 1.
Circulation medium is flowed into from " M " mouth on the housing 2 by pipeline, inside along housing enters, the stationary seal ring of making by graphite 5, the passage that diamondite is made wear-resisting rotating ring 6 and 4 formation of rotation outer tube enters the device interior that needs cooling, circulation medium through heat exchange flows out through the P mouth of elbow 14 from the inside of fixing interior pipe 13 again, is passed in the pipeline.
The related rotary joint structure (single channel) of the utility model as shown in Figure 1.
Circulation medium can be from " M " mouthful inflow or the outflow of housing 2, and same stationary seal ring 5, wear-resisting rotating ring 6 and rotation outer tube 4 have formed circulation passage.
Rotation outer tube 4 can be directly connected on the spindle nose of roller, roller or cooling roll and roller, roller or cooling roll run-in synchronism by screw thread or quick change form of flanges, is main rotary component.Wear-resisting rotating ring 6 cooperates installations with rotation outer tube 4, the step that rotation has two wing shapes on the outer tube 4 on wear-resisting rotating ring 6 the step cooperation and drive wear-resisting rotating ring 6 and rotate.
Deep groove ball bearing 3 cylindricals cooperate the endoporus that is installed on housing 1, and both are concentric.The cylindrical of the endoporus of deep groove ball bearing 3 and rotation outer tube 4 cooperates installation and concentric.Spacer 11 and circlip 9 separate two bearings, thereby have strengthened bearing load.Use the outer back-up ring 9 of elasticity and be and be used for a rotation outer tube 4 and be installed in the bearing 3, prevent to skid off.Inner shield ring 10 is used for ball bearing 3 is fixedly mounted in the endoporus of housing 1.Owing to use ball bearing 3 to support, rotation torque is greatly reduced, good concentricity goes slick.In addition, this swivel joint volume is little, and is in light weight, so this swivel joint can be used in higher rotation speed, in use also is not required to be bearing 3 and provides lubricated.
The surface of contact of stationary seal ring 5, wear-resisting rotating ring 6 is formed reliable mechanical seal kinetic friction pair, stationary seal ring 5 is realized spline by the spline pin 8 and the spline groove on it that are installed on the end cap 2, realizes auxiliary static seal by O shape circle 12 between stationary seal ring 5 and the end cap 1.Rotation outer tube 4 and wear-resisting rotating ring 6 also are to realize auxiliary static seal by O shape circle 12.Two O shape circles 12 all are mounted in (see figure 3) in the O shape groove, can prevent that like this O shape circle from coming off, and guarantees sealing reliably.The surface of contact of stationary seal ring 5 and wear-resisting rotating ring 6 forms the motive sealing friction pair, and sealing surface does not need special oiling agent, and the circulation medium of flowing through is exactly an oiling agent.Stationary seal ring 5 uses as stationary ring, does not rotate with device synchronization, and wear-resisting rotating ring 6 is along with rotation outer tube 4 and equipment rotate together.Stationary seal ring 5 quality are softer, and are easy to wear, as easily damaged parts; Wear-resisting rotating ring 6 hardness height, wear resistance is good, long service life.When changing stationary seal ring 5, can directly above housing 1, pull down end cap 2, not need whole swivel joint is pulled down from equipment, make the maintenance work of joint become simply like this and saved greatly and safeguarded dead time, reduce cost.
Rotation outer tube 4 materials are stainless, have good corrosion resistance.Pipe 13 is stainless steel material equally in fixing, rotation outer tube 4 and fixing in pipe 13 be used, make this swivel joint have flowing to and flow out two independently heat-conducting medium circulation passages, use on the equipment that is having only a heat-conducting medium circulation outlet.
The drain hole 16 of this swivel joint is a screw thread, and the inipple flow guide device can be installed, the minute leakage water conservancy diversion of swivel joint in specific device.
This swivel joint is provided with divider wall between bearing and motive sealing friction pair, thereby has avoided effectively directly causing bearing failure because of the motive sealing friction pair loses efficacy.
This swivel joint is used a plurality of seal wears counterbalance springs 7, evenly distribute be installed in stationary seal ring 5 around.Beginning counterbalance spring 7 is given 5 one precompressions of stationary seal ring, guarantees the sealing state of swivel joint.In the swivel joint work, stationary seal ring 5 weares and teares gradually, because the elastic elongation of counterbalance spring 7, compensated the wearing and tearing of stationary seal ring 5, and a plurality of spring distributes evenly, the pressure of loading also evenly distributes, guarantee the uniform wear of stationary seal ring 5 like this, guaranteed reliable sealing.
Claims (8)
1, a kind of swivel joint, the housing (2) that comprises end cap (1) and tubulose, on end cap (1), be provided with the fluid passage, in housing (2), be rotatably connected to rotation outer tube (4) by the bearing (3) that is provided with at interval, between adjacent two bearings (3), be provided with back-up ring (9) outside spacer (11) and the elasticity, be provided with the inner shield ring (10) that offsets with this bearing (3) sidewall at bearing (3) one side body (2) inwalls away from end cap (1), near being provided with in the housing (2) of end cap (1) one side and rotating the wear-resisting rotating ring (6) that outer tube (4) end offsets, near being provided with sliding plug in the end cap (1) of housing (2) one sides stationary seal ring (5) is being arranged, it is characterized in that: between stationary seal ring (5) end face and end cap (1), be compressed with some counterbalance springs (7) round stationary seal ring (5) arrangement of bores, on end cap (1), be provided with spline pin (8), described spline pin (8) axis and stationary seal ring (5) endoporus parallel axes, on stationary seal ring (5), offer and be convenient to the chute (5a) that spline pin (8) inserts, have around the bulge loop (5b) of stationary seal ring (5) endoporus at the end face of stationary seal ring (5) in the face of wear-resisting rotating ring (6), described bulge loop (5b) offsets with the corresponding end face of wear-resisting rotating ring (6).
2, swivel joint as claimed in claim 1 is characterized in that: offer drain hole (16) on the housing (2) between the adjacent two bearings (3).
3, swivel joint as claimed in claim 1 is characterized in that: step body (6a) outside wear-resisting rotating ring (6) end outer wall is provided with, rotation outer tube (4) end inwall offer with outside step body (6a) cooperate the interior step body (4a) of installation.
4, swivel joint as claimed in claim 3 is characterized in that: offer circumferential interior installation groove (4b) on the interior step body (4a) of rotation outer tube (4), be provided with elasticity O type ring (12) in interior installation groove (4b).
5, swivel joint as claimed in claim 1 is characterized in that: offer circumferential outer installation groove (5c) at stationary seal ring (5) outer wall, install outside and be provided with elasticity O type ring (12) in the groove (5c).
6, swivel joint as claimed in claim 1, it is characterized in that: connecting bend (14) is spirally connected on end cap (1), connecting bend (14) go up fixedly connected fixing in pipe (13), described fixing in pipe (13) insert the interior segment distance of rotation outer tube (4) after passing the endoporus of stationary seal ring (5) and wear-resisting rotating ring (6).
7, swivel joint as claimed in claim 1 is characterized in that: at housing (2) inwall near end cap (1) one side circumferential divider wall (2a) is set, and bearing (3) sidewall leans on mutually with this divider wall (2a).
8, swivel joint as claimed in claim 1 is characterized in that: offer air outlet hole (15) on housing (2), the bulge loop (5b) that described air outlet hole (15) the inner is positioned at stationary seal ring (5) and wear-resisting rotating ring (6) place that offsets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200352221U CN201368279Y (en) | 2009-03-12 | 2009-03-12 | Rotating joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200352221U CN201368279Y (en) | 2009-03-12 | 2009-03-12 | Rotating joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201368279Y true CN201368279Y (en) | 2009-12-23 |
Family
ID=41487171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200352221U Expired - Lifetime CN201368279Y (en) | 2009-03-12 | 2009-03-12 | Rotating joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201368279Y (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865343A (en) * | 2010-06-07 | 2010-10-20 | 苏州有色金属研究院有限公司 | Novel pneumatic compacted end-face-seal rotary joint |
| CN102305324A (en) * | 2011-08-25 | 2012-01-04 | 江苏腾旋科技股份有限公司 | Split multi-spring large drift diameter rotary joint |
| CN102410415A (en) * | 2011-08-25 | 2012-04-11 | 江苏腾旋科技股份有限公司 | High-temperature high-speed rotating joint |
| CN102410416A (en) * | 2011-08-25 | 2012-04-11 | 江苏腾旋科技股份有限公司 | Split-type multi-spring-structure rotating joint |
| CN102661462A (en) * | 2012-05-11 | 2012-09-12 | 芜湖瑞精机床有限责任公司 | High-speed rotary joint |
| CN103234088A (en) * | 2013-05-17 | 2013-08-07 | 滕州市惠丰机械制造有限公司 | Wear-resistant rotating joint |
| CN104121441A (en) * | 2014-07-10 | 2014-10-29 | 慈溪市忠富机械科技有限公司 | Mass flow water cooling and rotating device |
| CN105757253A (en) * | 2016-04-26 | 2016-07-13 | 成都通密封股份有限公司 | Dry gas seal of long-distance pipeline natural gas compressor unit |
| CN105782450A (en) * | 2016-04-28 | 2016-07-20 | 湖南创远高新机械有限责任公司 | Water sealing structure of raise boring machine |
| CN107255196A (en) * | 2017-08-01 | 2017-10-17 | 郎溪腾旋科技有限公司 | A kind of dynamic sealing swivel coupling |
| CN107781553A (en) * | 2016-08-31 | 2018-03-09 | 福建省闽旋科技股份有限公司 | A kind of double containment anti-vibration swivel joint |
| CN108506352A (en) * | 2018-03-27 | 2018-09-07 | 北京化工大学 | A kind of sealing bearing and mechanical equipment |
| CN109611630A (en) * | 2019-01-17 | 2019-04-12 | 北京远华天创科技有限责任公司 | A kind of rotary sealing structure |
| CN110005956A (en) * | 2019-04-30 | 2019-07-12 | 鞍山市昱虎流体设备有限公司 | Shell split-type Anti-freezing cryogen rotary joint |
| CN110259952A (en) * | 2019-07-18 | 2019-09-20 | 福建省闽旋科技股份有限公司 | A kind of centrifuge rotary dynamic sealing device |
-
2009
- 2009-03-12 CN CNU2009200352221U patent/CN201368279Y/en not_active Expired - Lifetime
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865343A (en) * | 2010-06-07 | 2010-10-20 | 苏州有色金属研究院有限公司 | Novel pneumatic compacted end-face-seal rotary joint |
| CN102305324A (en) * | 2011-08-25 | 2012-01-04 | 江苏腾旋科技股份有限公司 | Split multi-spring large drift diameter rotary joint |
| CN102410415A (en) * | 2011-08-25 | 2012-04-11 | 江苏腾旋科技股份有限公司 | High-temperature high-speed rotating joint |
| CN102410416A (en) * | 2011-08-25 | 2012-04-11 | 江苏腾旋科技股份有限公司 | Split-type multi-spring-structure rotating joint |
| CN102661462B (en) * | 2012-05-11 | 2014-07-30 | 芜湖瑞精机床有限责任公司 | High-speed rotary joint |
| CN102661462A (en) * | 2012-05-11 | 2012-09-12 | 芜湖瑞精机床有限责任公司 | High-speed rotary joint |
| CN103234088B (en) * | 2013-05-17 | 2014-11-12 | 滕州市惠丰机械制造有限公司 | Wear-resistant rotating joint |
| CN103234088A (en) * | 2013-05-17 | 2013-08-07 | 滕州市惠丰机械制造有限公司 | Wear-resistant rotating joint |
| CN104121441A (en) * | 2014-07-10 | 2014-10-29 | 慈溪市忠富机械科技有限公司 | Mass flow water cooling and rotating device |
| CN105757253A (en) * | 2016-04-26 | 2016-07-13 | 成都通密封股份有限公司 | Dry gas seal of long-distance pipeline natural gas compressor unit |
| CN105782450A (en) * | 2016-04-28 | 2016-07-20 | 湖南创远高新机械有限责任公司 | Water sealing structure of raise boring machine |
| CN107781553A (en) * | 2016-08-31 | 2018-03-09 | 福建省闽旋科技股份有限公司 | A kind of double containment anti-vibration swivel joint |
| CN107255196A (en) * | 2017-08-01 | 2017-10-17 | 郎溪腾旋科技有限公司 | A kind of dynamic sealing swivel coupling |
| CN108506352A (en) * | 2018-03-27 | 2018-09-07 | 北京化工大学 | A kind of sealing bearing and mechanical equipment |
| CN109611630A (en) * | 2019-01-17 | 2019-04-12 | 北京远华天创科技有限责任公司 | A kind of rotary sealing structure |
| CN110005956A (en) * | 2019-04-30 | 2019-07-12 | 鞍山市昱虎流体设备有限公司 | Shell split-type Anti-freezing cryogen rotary joint |
| CN110005956B (en) * | 2019-04-30 | 2023-12-22 | 鞍山市昱虎流体设备有限公司 | Shell split type anti-freezing low-temperature fluid rotary joint |
| CN110259952A (en) * | 2019-07-18 | 2019-09-20 | 福建省闽旋科技股份有限公司 | A kind of centrifuge rotary dynamic sealing device |
| CN110259952B (en) * | 2019-07-18 | 2024-02-02 | 福建省闽旋科技股份有限公司 | Rotary dynamic sealing device of centrifugal machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091223 |
|
| CX01 | Expiry of patent term |