CN201866444U - High-pressure double-channel rotating joint - Google Patents
High-pressure double-channel rotating joint Download PDFInfo
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- CN201866444U CN201866444U CN201020622888XU CN201020622888U CN201866444U CN 201866444 U CN201866444 U CN 201866444U CN 201020622888X U CN201020622888X U CN 201020622888XU CN 201020622888 U CN201020622888 U CN 201020622888U CN 201866444 U CN201866444 U CN 201866444U
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- sealing mouth
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Abstract
The utility model provides a high-pressure double-channel rotating joint, which comprises a rotating flange [1], a center channel pipe connected to the rotating flange and a casing, wherein the center channel pipe is coaxially sleeved by an inner-layer channel pipe with an outer-layer channel pipe to form an inner rotating channel and an outer rotating channel; a casing inner channel and a casing outer channel are arranged in the casing; a butted sealing nozzle embedded in the casing is arranged at the port part by which the casing inner channel is connected with the casing outer channel; a gap [d] is reserved between the rear end face of the butted sealing nozzle and the casing; and a channel [e] is formed between the gap and the casing outer channel. Compared with the prior art, by using the high-pressure double-channel rotating joint, the pressure is simultaneously applied to the front end and the rear end of the butted sealing nozzle, so that the phenomenon that mechanical sealing loses the sealing pressure because a spring between the butted sealing nozzle and the casing is compressed by the butted sealing nozzle due to the pressure of the outer channel can be avoided, the special requirements that one channel stops supplying oil when the other channel supplies oil for lubricating can be met, and the phenomenon that the inner channel is communicated with the outer channel under the normal condition can be avoided.
Description
Technical field
The utility model relates to high pressure Twin channel swivel joint, as be applied to the high pressure Twin channel swivel joint on the steel rolling taking-up equipment, belong to the multiple-way duct swivel joint technical field of machinery.
Background technique
Swivel joint includes housing, make rotary flange in relative rotation with housing and be connected on the rotary flange and insert passage body in the housing.High pressure Twin channel swivel joint then is meant wherein has two to keep separate passage and be the swivel joint of circulation high-pressure medium in the passage in rotation.High pressure Twin channel swivel joint in the past, by constituting in the central passage pipe insertion housing that rotary flange connected, the central passage pipe is rotatably connected with coaxial with housing.The central passage pipe has the inside and outside two-layer coaxial pipe that is nested to constitute, and the passage that is directed to two mouths of pipe respectively arranged at flange part, wherein inner passway tube is longer than the external chennel pipe, be provided with the internal and external channel of making the internal and external layer structure equally in the housing, be connected with internal and external channel on the central passage pipe and be directed to two mouths of pipe on the housing through rotary seal structure respectively.The end that is connected with the central passage pipe in the said housing is one can make the axially movable Butt sealing mouth that sealing material is installed, using on the Butt sealing mouth to seal ring provides the spring of forward thrust to be connected with housing, make this rotary seal structure that a pressure that is harmonious be arranged all the time and keep the sealing.In high pressure Twin channel swivel joint, some are arranged is Twin channel alternate conduction, as be applied to connect high pressure Twin channel swivel joint on the steel rolling taking-up equipment, it is alternately to force fuel feeding that its inner each lubricant housings of the take-up gear of steel rolling equipment requires, when promptly a position fuel feeding was lubricated, another position then must fuel cut-off.External chennel is not worked during internal channel work just, and vice versa.But because the internal channel Butt sealing mouth in the Twin channel swivel joint housing is exposed among the external chennel, so when external chennel circulation high-pressure medium, can exert pressure and overcome the elastic force of its rear spring to the Butt sealing mouth, thereby the Butt sealing mouth is moved backward and break away from tight connection the with central passage pipe upper orifice Sealing, leakage takes place at this, in the time of can not satisfying a passage job another the time passage out-of-work specific (special) requirements; Especially when two media that passage circulated different in addition mix after can produce bad reaction the time, endanger particularly serious.
Summary of the invention
At above-mentioned deficiency, the utility model is exactly to propose the high pressure Twin channel swivel joint that a kind of internal and external channel seals all the time.
The high pressure Twin channel swivel joint that the utility model provides has rotary flange, is connected central passage pipe on the rotary flange and housing constitutes, and the central passage pipe inserts in the housing and both are rotatably connected with coaxial; The central passage pipe is made of coaxial being nested of inside and outside two-layer tunnel tube, form the rotation external chennel of annular between the rotation internal channel of internal layer tunnel tube endoporus and the internal and external channel pipe, have two passages to guide the rotation internal and external channel respectively by flange two mouths of pipe to the flange at flange part; Wherein inner passway tube is longer than the external chennel pipe, and the inherent inner passway tube of housing grows the housing external chennel that the external chennel tubular portion is outside equipped with annular, between housing external chennel and the rotation external chennel port external chennel mechanical seal ring is arranged; Also be provided with the housing internal channel that docks with the inner passway tube endoporus in the housing, between housing internal channel and the rotation internal channel port internal channel mechanical seal ring arranged; Also have in the housing two passages respectively the guide housing internal and external channels by housing two mouths of pipe to the housing; Said housing internal channel is the Butt sealing mouth that is embedded in the housing with the port section that is connected of rotation internal channel, and the Butt sealing mouth is a reducing cylindrical body, and it has in backward end face and the housing end face forward cooperate, and spring is installed between the both ends of the surface; The channel vertical that is connected with the housing internal channel on the said housing is in Butt sealing mouth axis, and circularizes passage in Butt sealing mouth profile, and the housing internal channel in the Butt sealing mouth is turned back at the right angle, rear portion and communicated with this annular pass through the cylinder cylinder; In these both sides, annular pass seal ring is arranged between Butt sealing mouth cylinder and the housing; Gapped between said Butt sealing mouth ear end face and the housing, between this gap and the housing external chennel passage is arranged.
The high pressure Twin channel swivel joint that the utility model provides, be communicated with external chennel in Butt sealing mouth rear end, external chennel hydraulic pressure can be applied on the Butt sealing mouth rear end, compared with the prior art, the utility model is being exerted pressure to its rear end when Butt sealing mouth front end is exerted pressure, the Butt sealing mouth causes mechanical seal to lose sealing load with regard to not making the spring between its compression and the housing because of the pressure on the external chennel like this, the specific (special) requirements of a passage fuel cut-off can under normal circumstances not make internal and external channel gang up when the satisfied passage fuel feeding of energy was lubricated.
The high pressure Twin channel swivel joint that the utility model provides, said Butt sealing mouth is divided into two sections of front and back, and the seal ring between position, annular pass, Butt sealing mouth front portion and the housing of two sections separatrix outside the Butt sealing mouth and its middle shell internal channel are between the mouth on the Butt sealing mouth cylinder; The leading portion front end is installed mechanical sealing static ring and is cooperated with mechanical sealing linkage ring on being installed in the inner passway tube rear end; The spring of installing between the step of leading portion and housing is a belleville spring, micro-gap is arranged between two sections before and after when belleville spring discharges.The segmentation of Butt sealing mouth is processed and assembling with convenient, the part that need promote when making length of spring compressed in addition has only seal ring to reduce resistance between housing, micro-gap between the two (this gap is slightly larger than the height difference before and after the length of spring compressed) then is subjected to moving axially leeway when backward pressure is enough to overcome spring force because of vibration makes leading portion at work, and belleville spring makes mechanical sealing static ring be subjected to sealing load more uniformly.
The high pressure Twin channel swivel joint that the utility model provides, said housing external chennel is arranged in the butt joint sealed mouth, the Butt sealing mouth is the reducing cylindrical shape, there is in end face and the housing backward end face forward cooperate, a plurality of small-sized cylindrical springs are installed on Butt sealing mouth concentric circle between the both ends of the surface five equilibrium; Mechanical sealing linkage ring on Butt sealing mouth front end is installed mechanical sealing static ring and rotated the external chennel rear end cooperates.Adopt a plurality of uniform small-sized cylindrical springs but not single big cylindrical spring, it is even to guarantee to act on stationary ring pressure all around, and it is crooked to avoid stationary ring to produce owing to pressure is uneven.Make the sealability of mechanical seal ring more reliable, also can avoid spring and working medium to contact for a long time and produce corrosion, thereby prolong working life.
The high pressure Twin channel swivel joint that the utility model provides, said external chennel mechanical seal ring are in the interior cavity of housing, are mounted with an one-way valve from the unidirectional conducting of cavity inward channel between this cavity and the internal channel.The effect of this valve is arranged, and when the external chennel mechanical seal ring was lost efficacy, high-pressure liquid can communicate and release with internal channel; If the internal channel mechanical seal ring lost efficacy, the internal channel high-pressure liquid then communicates and release with external chennel.Thereby guarantee can not produce external leakage, the protection product is not damaged.
Description of drawings
Fig. 1 is the utility model one embodiment's a sectional view, among the figure: 1-rotary flange, 2-bolt, 3-central passage outer tube layer, 4-central passage inner tube layer, 5-front case, 6-external chennel seal arrangement, 7-pressure release screw, 8-one-way valve, the 9-rear case, 10-housing internal channel inlet, 11-internal channel Butt sealing mouth back segment, 12-internal channel Butt sealing mouth leading portion, the 13-butterfly spring, 14-internal channel seal arrangement, 15-housing external chennel inlet, 16-small column spring, 17-external chennel Butt sealing mouth, aa '-external chennel, bb '-internal channel, c-cavity, gap of living in, d-11 rear end, e-connects the pressure equalisation passage of c and bb '.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
One high pressure Twin channel swivel joint, its structure as shown in drawings.Rotary flange 1 is arranged, have the outlet of internal and external channel to be directed on the hole of interior edge face axle center and eccentric part through passage respectively on the rotary flange exterior edge face.Have the central passage pipe to be installed on the flange, the central passage pipe divides inside and outside two-layer, and wherein the internal layer 4 of hollow is pressed on internal layer on the flange with the groove of clasp on cylindricality ball and inner layer outer wall that is fixed on the flange in seal ring is inserted in the flange axle center hole again; Running shaft was outer in the skin 3 of hollow was enclosed within also is co-axially mounted on the flange with bolt 2, and the seal ring sealing on the negative and positive cylinder is arranged between the outer flange.In the space of port hole on the flange off-centre between internal and external layer.Internal layer length is greater than skin, and the internal layer rear end is the connecting port of internal channel in housing, makes after shrink outer rear end and forms the connecting port of external chennel in housing between its inwall and the inner layer outer wall.Front case 5 is arranged, and front case has cylindrical cavity, central passage outer tube layer outer wall through seal ring and Bearing Installation in front case.Other has rear case 9 to be installed on the front case rear end through screw with front-end face.Rear case also has cylindrical cavity c, internal channel Butt sealing mouth is installed in the cavity and is become internal channel butt joint space, in addition the still part of external chennel in the housing.The external chennel Butt sealing mouth 17 that coaxial reducing annulus constitutes, the minor diameter rear end that perhaps is referred to as the stationary ring fitting seat of external chennel seal arrangement 6 is inserted in this cavity front end through seal ring, and the end face backward of the major diameter front end of this external chennel Butt sealing mouth is connected through small column spring 16 with the rear case front-end face.Said small column spring has 6, and the small column spring is installed in the rear side positioning hole of major diameter front end of said Butt sealing mouth.The rotating ring of external chennel seal arrangement is installed in central passage outer tube layer rear end, and the rotating ring of external chennel seal arrangement and stationary ring form the Butt sealing device of external chennel in housing.The Butt sealing of said external chennel in housing is in the rear end of front case hollow cavity, has a hole to connect this cavity on the front case rear end, the pressure release screw is installed on this hole leaked when serious pressure release in order to this Butt sealing and use.Said rear case hollow cavity diameter be the rear end less than front end, have internal channel Butt sealing mouth divide before and after section install wherein.The internal channel Butt sealing mouth leading portion 12 that coaxial reducing annulus constitutes, rear case hollow cavity rear end is inserted through seal ring in the stationary ring fitting seat minor diameter rear end that perhaps is referred to as internal channel seal arrangement 14, and the end face backward of its major diameter front end is connected with end face forward between the rear case hollow cavity front end and back end through belleville spring 13.The rotating ring of the internal channel seal arrangement of installing on the central passage inner tube layer rear end constitutes the Butt sealing device of internal channel in housing with the stationary ring that is installed in internal channel Butt sealing mouth leading portion front end.External chennel inlet 15 is arranged on the rear case cylinder, there is passage to be connected between this external chennel inlet and the internal channel seal arrangement rear case hollow cavity of living in, forms the external chennel external chennel to the flange of passage in space, the flange that enters the mouth in rear case between passage, rear case hollow cavity, external chennel Butt sealing mouth endoporus, the central passage pipe internal and external layer with this and go out the external chennel aa ' of interruption-forming.It is a cylindrical body that internal channel Butt sealing mouth back segment 11 is arranged again, and porose respectively on the cylindrical body center of circle, one bottom surface and the cylindrical body cylinder, two holes are connected on cylinder axis.This cylindrical body is connected with internal channel Butt sealing mouth leading portion mesopore with the hole on its bottom surface and is installed on the rear case hollow cavity rear end through seal ring.Rear case has the annular pass outside the link position of this cylindrical body and internal channel Butt sealing mouth leading portion, this annular pass has passage to the rear case cylinder, its passway at the rear case cylinder is an internal channel inlet 10, forms the internal channel bb ' of internal channel inlet through the internal channel outlet to the flange of rear case internal channel, internal channel Butt sealing mouth back segment mesopore, internal channel Butt sealing mouth leading portion mesopore, central passage inner tube layer mesopore, flange internal channel with this.And two seal rings between section and the rear case are respectively in the place ahead of said annular pass before and after the said internal channel Butt sealing mouth, and section is with the taper connection of the coaxial convex-concave of cylindrical body before and after the internal channel Butt sealing mouth in addition.Gapped d between aforementioned cylindrical body rear end and rear case has also opened a pressure equalisation passage e who connects between this gap and the passage of external chennel in rear case in the rear case.And between passage that the connection internal channel enters the mouth on the rear case and the residing cavity of external chennel seal arrangement a pressure release passage is arranged also, this pressure release passage is equipped with one-way valve 8 at cavity one end, this one-way valve only allows cavity inward channel Way in open-minded, and external chennel pressure inward channel discharges when being used for external chennel and leaking at the seal arrangement place.
This example is used for the rolling mill coiling machine, and its flange is fixedlyed connected with the main shaft of coiling machine and done rotation synchronously, and two passages on the flange link to each other with the internal and external channel of coiling machine respectively, can realize implementing alternately to force fuel feeding to coiling machine.During work, external chennel pressure makes the stationary ring of internal channel seal arrangement can keep balance to exerting pressure simultaneously before and after the internal channel Butt sealing mouth, can avoid butterfly spring to be flattened by the place ahead high pressure and causes seal failure.The central passage pipe adopts high-quality structural steel 40Cr to make, and the dynamic and static ring of internal and external channel seal arrangement all adopts the high grade project Tungsten carbite, and sealing surface is precise polished.
Claims (4)
1. high pressure Twin channel swivel joint, the central passage pipe and the housing that rotary flange is arranged, are connected on the rotary flange constitute, and the central passage pipe inserts in the housing and both are rotatably connected with coaxial; The central passage pipe is made of coaxial being nested of inside and outside two-layer tunnel tube, form the rotation external chennel of annular between the rotation internal channel of internal layer tunnel tube endoporus and the internal and external channel pipe, have two passages to guide the rotation internal and external channel respectively by flange two mouths of pipe to the flange at flange part; Wherein inner passway tube is longer than the external chennel pipe, and the inherent inner passway tube of housing grows the housing external chennel that the external chennel tubular portion is outside equipped with annular, between housing external chennel and the rotation external chennel port external chennel mechanical seal ring is arranged; Also be provided with the housing internal channel that docks with the inner passway tube endoporus in the housing, between housing internal channel and the rotation internal channel port internal channel mechanical seal ring arranged; Also have in the housing two passages respectively the guide housing internal and external channels by housing two mouths of pipe to the housing; Said housing internal channel is the Butt sealing mouth that is embedded in the housing with the port section that is connected of rotation internal channel, and the Butt sealing mouth is a reducing cylindrical body, and it has in backward end face and the housing end face forward cooperate, and spring is installed between the both ends of the surface; The channel vertical that is connected with the housing internal channel on the said housing is in Butt sealing mouth axis, and circularizes passage in Butt sealing mouth profile, and the housing internal channel in the Butt sealing mouth is turned back at the right angle, rear portion and communicated with this annular pass through the cylinder cylinder; In these both sides, annular pass seal ring is arranged between Butt sealing mouth cylinder and the housing; It is characterized in that between said Butt sealing mouth ear end face and the housing gappedly, between this gap and the housing external chennel passage is arranged.
2. high pressure Twin channel swivel joint as claimed in claim 1, it is characterized in that said Butt sealing mouth is divided into two sections of front and back, the seal ring between position, annular pass, Butt sealing mouth front portion and the housing of two sections separatrix outside the Butt sealing mouth and its middle shell internal channel are between the mouth on the Butt sealing mouth cylinder; The leading portion front end is installed mechanical sealing static ring and is cooperated with mechanical sealing linkage ring on being installed in the inner passway tube rear end; The spring of installing between the step of leading portion and housing is a belleville spring, micro-gap is arranged between two sections before and after when belleville spring discharges.
3. high pressure Twin channel swivel joint as claimed in claim 1, it is characterized in that said housing external chennel is arranged in the butt joint sealed mouth, the Butt sealing mouth is the reducing cylindrical shape, there is in end face and the housing backward end face forward cooperate, a plurality of small-sized cylindrical springs are installed on Butt sealing mouth concentric circle between the both ends of the surface five equilibrium; Mechanical sealing linkage ring on Butt sealing mouth front end is installed mechanical sealing static ring and rotated the external chennel rear end cooperates.
4. high pressure Twin channel swivel joint as claimed in claim 1 is characterized in that said external chennel mechanical seal ring is in the interior cavity of housing, is mounted with an one-way valve from the unidirectional conducting of cavity inward channel between this cavity and the internal channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020622888XU CN201866444U (en) | 2010-11-25 | 2010-11-25 | High-pressure double-channel rotating joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020622888XU CN201866444U (en) | 2010-11-25 | 2010-11-25 | High-pressure double-channel rotating joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201866444U true CN201866444U (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020622888XU Expired - Fee Related CN201866444U (en) | 2010-11-25 | 2010-11-25 | High-pressure double-channel rotating joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201866444U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359681A (en) * | 2011-10-15 | 2012-02-22 | 江苏腾旋科技股份有限公司 | Double-end face integrated rotary joint |
| CN102996957A (en) * | 2012-12-14 | 2013-03-27 | 中国科学院力学研究所 | Double-channel miniature rotary seal used for bioreactor |
| CN104214453A (en) * | 2014-09-01 | 2014-12-17 | 湘潭大学 | Dual-channel rotary joint |
| CN105673973A (en) * | 2016-04-06 | 2016-06-15 | 诸城市安泰机械有限公司 | Double-door sterilization kettle rotating mechanism |
| CN105673971A (en) * | 2016-04-06 | 2016-06-15 | 诸城市安泰机械有限公司 | High-temperature high-pressure resistant concentric two-way rotary joint |
| CN105764716A (en) * | 2013-11-11 | 2016-07-13 | 伊夸莱尔系统公司 | Rotary union for tire inflation system |
| US11685201B2 (en) | 2016-10-19 | 2023-06-27 | Pressure Systems International, Llc | Inflation manifold |
-
2010
- 2010-11-25 CN CN201020622888XU patent/CN201866444U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359681A (en) * | 2011-10-15 | 2012-02-22 | 江苏腾旋科技股份有限公司 | Double-end face integrated rotary joint |
| CN102996957A (en) * | 2012-12-14 | 2013-03-27 | 中国科学院力学研究所 | Double-channel miniature rotary seal used for bioreactor |
| CN102996957B (en) * | 2012-12-14 | 2015-06-03 | 中国科学院力学研究所 | Double-channel miniature rotary seal used for bioreactor |
| CN105764716A (en) * | 2013-11-11 | 2016-07-13 | 伊夸莱尔系统公司 | Rotary union for tire inflation system |
| CN105764716B (en) * | 2013-11-11 | 2019-07-09 | 伊夸莱尔系统公司 | Rotary joint for tire inflation system |
| US10562356B2 (en) | 2013-11-11 | 2020-02-18 | Equalaire Systems, Inc. | Rotary union for tire inflation system |
| US11813898B2 (en) | 2013-11-11 | 2023-11-14 | Pressure Systems International, Llc | Rotary union for tire inflation system |
| CN104214453A (en) * | 2014-09-01 | 2014-12-17 | 湘潭大学 | Dual-channel rotary joint |
| CN105673973A (en) * | 2016-04-06 | 2016-06-15 | 诸城市安泰机械有限公司 | Double-door sterilization kettle rotating mechanism |
| CN105673971A (en) * | 2016-04-06 | 2016-06-15 | 诸城市安泰机械有限公司 | High-temperature high-pressure resistant concentric two-way rotary joint |
| CN105673973B (en) * | 2016-04-06 | 2017-11-24 | 诸城市安泰机械有限公司 | A kind of double door Sterilization Kettle rotating mechanism |
| US11685201B2 (en) | 2016-10-19 | 2023-06-27 | Pressure Systems International, Llc | Inflation manifold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 316111 Zhoushan, Putuo District Zhujiajian street, Po Road, No. 8, No. Patentee after: Zhejiang run machinery Co., Ltd. Address before: 316100 Zhejiang city of Zhoushan province Putuo District Shenjiamen Marine Park Street Run Road No. 18 Bai Patentee before: Zhejiang Baorun Hydraulic Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20181125 |