CN107339534B - High-speed high-pressure liquid-gas rotary joint - Google Patents
High-speed high-pressure liquid-gas rotary joint Download PDFInfo
- Publication number
- CN107339534B CN107339534B CN201710655669.8A CN201710655669A CN107339534B CN 107339534 B CN107339534 B CN 107339534B CN 201710655669 A CN201710655669 A CN 201710655669A CN 107339534 B CN107339534 B CN 107339534B
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- oil
- rotary joint
- sealing ring
- pressure liquid
- speed
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- 239000003921 oil Substances 0.000 claims abstract description 39
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
-
- 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
- F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
- F16L39/06—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies of the multiline swivel type, e.g. comprising a plurality of axially mounted modules
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cyclones (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a high-speed high-pressure liquid-gas rotary joint which comprises a rotary shaft, a shell, an end cover and a tail cover, wherein an oil inlet hole and an oil discharge hole are formed in the shell, an oil inlet channel and an oil outlet channel are formed in the rotary shaft in a matched mode with the oil inlet hole and the oil outlet hole, high-pressure hydraulic oil is supplied to rotary equipment through the oil inlet channel and flows into an oil tank from the oil outlet channel, an air inlet hole is formed in the tail cover and is formed in the rotary shaft in a matched mode with the air inlet hole, an air inlet channel is formed in the rotary shaft, a balanced type mechanical sealing assembly used for communicating and sealing the air inlet hole and the air inlet channel is arranged between the end portion of the rotary shaft and the tail cover, and compressed air enters the air inlet channel through the balanced type mechanical sealing assembly to supply air to the rotary equipment. The high-speed high-pressure liquid-gas rotary joint realizes the functions of circulating multi-path high-pressure hydraulic oil and circulating compressed air by realizing high-speed rotation on a single rotary joint. Not only has compact structure and small volume; and the failure rate is low, and the operation is stable and reliable.
Description
Technical Field
The present invention relates to a rotary joint, and more particularly, to a high-speed rotary joint capable of using high-pressure hydraulic oil and compressed air at the same time.
Background
The rotary joint is a sealed rotary connector for conveying media in a 360-degree rotating mode, and the application field of the rotary joint almost covers various processing and manufacturing industries. In a specific application process, for some high-speed rotating equipment, a rotating joint is required to be capable of simultaneously using high-pressure hydraulic oil and compressed air, at present, the tail part of the hydraulic oil rotating joint is provided with a compressed air rotating joint in the conventional way, and the structure has the defects of long integral structure and poor quality stability and reliability.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a high-speed high-pressure liquid-gas rotary joint which has the characteristics of compact structure, small volume and good running stability and reliability.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a high-speed high-pressure liquid gas rotary joint, it includes pivot, casing, end cover and tailhood are fixed in respectively the both ends of casing, the pivot both ends pass through the bearing can set up with rotating at a high speed in the casing, wherein, inlet port and oil drain hole have been seted up on the casing, the cooperation inlet port and oil drain hole in oil inlet and oil outlet have been seted up in the pivot, high pressure hydraulic oil is in the oil inlet gives the rotary equipment fuel feeding and from oil outlet inflow oil tank, seted up the inlet port on the tailhood, the cooperation inlet port in the intake duct has been seted up in the pivot, the tip of pivot with be provided with between the tailhood and be used for the balanced type mechanical seal subassembly with inlet port and intake duct intercommunication and sealed, compressed air gets into the intake duct through balanced type mechanical seal subassembly and gives the rotary equipment air feed.
Particularly, balanced type mechanical seal subassembly is including moving sealing ring, quiet sealing ring and spring, the storage tank has been seted up to the tip of pivot, the spring set up in the storage tank, the intake duct seted up in the bottom of storage tank, quiet sealing ring set up in on the tail-hood, the one end card that moves the sealing ring is gone into with spring contact in the storage tank, the other end compress tightly seal in with intake duct and the sealed intercommunication of inlet port on the quiet sealing ring.
Particularly, the shell is provided with a drain hole, the drain hole is communicated with a cavity formed between the rotating shaft and the tail cover, and a small amount of leaked oil can be discharged into an oil tank through the drain hole and is used for judging whether the balanced mechanical seal assembly is sealed or not.
In particular, there is hydraulic oil for clearance sealing between the rotating shaft and the housing.
In particular, lip-shaped sealing rings are arranged between the end cover and the rotating shaft, and O-shaped sealing rings are arranged between the end cover and the shell as well as between the tail cover and the shell.
In particular, an O-shaped sealing ring is arranged between the dynamic sealing ring and the rotating shaft.
Compared with the prior art, the high-speed high-pressure liquid-gas rotary joint has the beneficial effects that the high-speed high-pressure liquid-gas rotary joint realizes the functions of circulating multi-path high-pressure hydraulic oil and circulating compressed air on a single rotary joint by utilizing a clearance sealing structure principle and a mechanical sealing principle. Not only has compact structure and small volume; and the failure rate is low, and the operation is stable and reliable.
Drawings
Fig. 1 is a cross-sectional view of a high-speed high-pressure liquid-gas rotary joint according to embodiment 1 of the present invention.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings. It is to be understood that the embodiments described herein are illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1, fig. 1 is a cross-sectional view of a high-speed high-pressure liquid-gas rotary joint according to embodiment 1 of the present invention.
In this embodiment, a high-speed high-pressure liquid gas rotary joint includes pivot 1, casing 2, end cover 3 and tail-hood 4 are fixed in respectively the both ends of casing 2, 1 both ends of pivot pass through bearing 5 can set up with high-speed rotation in casing 1, end cover 3 with it seals to be provided with lip seal 6 between the pivot 1.
Seted up inlet port 7 and oil drain hole 8 on the casing 1, the cooperation inlet port 7 and oil outlet 8 in oil feed channel 9 and oil outlet 10 have been seted up in pivot 1, when needing to let in high-pressure hydraulic oil, inlet port 7 with oil feed channel 9 is linked together, oil drain hole 8 with oil outlet 10 is linked together, and high pressure hydraulic oil is in the oil feed channel 9 gives the rotary equipment fuel feeding and flows into the oil tank from oil outlet 10, seted up inlet port 11 on the tailcap 4, cooperate inlet port 11 in the center department of pivot 1 has seted up intake duct 12 along its length direction, the tip of pivot 1 with be provided with between tailcap 4 and be used for communicating and sealed balanced type mechanical seal assembly with inlet port 11 and intake duct 12.
Balanced type mechanical seal subassembly is including moving sealing ring 13, quiet sealing ring 14 and spring 15, storage tank 16 has been seted up to the tip of pivot 1, spring 15 set up in storage tank 16, intake duct 12 set up in storage tank 16's bottom, quiet sealing ring 14 set up in on the tailcap 4 and with inlet port 11 is linked together, the one end card that moves sealing ring 13 is gone into with spring 15 contact in storage tank 16, the other end pass through spring 15's elasticity compress tightly seal in with intake duct 12 and the sealed intercommunication of inlet port 11 on the quiet sealing ring 14, compressed air gets into behind the sealing member that moves sealing ring 13 and quiet sealing ring 14 and constitute through inlet port 11 intake duct 12 gives the rotating equipment air feed.
The casing 1 is provided with a drain hole 17, the drain hole 17 is communicated with a cavity formed between the rotating shaft 1 and the tail cover 4, a small amount of leaked oil can be discharged into an oil tank through the drain hole 17, and meanwhile, whether the balanced mechanical seal assembly is sealed or not is judged, and if gas leaks from the drain hole 17, it is indicated that the seal between the movable seal ring 13 and the static seal ring 14 is poor or fails.
An O-shaped sealing ring 18 is arranged between the dynamic sealing ring 13 and the rotating shaft 1 for sealing, and O-shaped sealing rings 18 are also arranged between the end cover 3 and the tail cover 4 and the shell 1 for sealing.
The foregoing embodiments are merely illustrative of the principles and features of this invention, and the invention is not limited to the embodiments described above, but rather, is susceptible to various changes and modifications without departing from the spirit and scope of the invention, as claimed. The scope of the invention is defined by the appended claims.
Claims (6)
1. The utility model provides a high-speed high-pressure liquid gas rotary joint, its includes pivot, casing, end cover and tail-hood are fixed in respectively the both ends of casing, the pivot both ends through the bearing can set up with rotating at a high speed in the casing, its characterized in that: oil inlet and oil drain hole have been seted up on the casing, the cooperation oil inlet and oil drain hole in oil inlet and oil outlet have been seted up in the pivot, high pressure hydraulic oil is in the oil inlet for the rotary equipment fuel feeding and from the oil outlet inflow oil tank, the inlet port has been seted up on the tail-hood, the cooperation inlet port in the intake duct has been seted up in the pivot, the tip of pivot with be provided with between the tail-hood and be used for the balanced type mechanical seal subassembly with inlet port and intake duct intercommunication and sealed, compressed air gets into the inlet duct through balanced type mechanical seal subassembly and gives the rotary equipment air feed.
2. A high-speed, high-pressure liquid-gas rotary joint as set forth in claim 1, wherein: balanced type mechanical seal subassembly is including moving sealing ring, quiet sealing ring and spring, the storage tank has been seted up to the tip of pivot, the spring set up in the storage tank, the intake duct seted up in the bottom of storage tank, quiet sealing ring set up in on the tail cover, the one end card of moving the sealing ring is gone into with spring contact in the storage tank, the other end compress tightly seal in with intake duct and the sealed intercommunication of inlet port on the quiet sealing ring.
3. A high-speed, high-pressure liquid-gas rotary joint as set forth in claim 1, wherein: the shell is provided with a drain hole, and the drain hole is communicated with a cavity formed between the rotating shaft and the tail cover.
4. The high speed, high pressure liquid gas rotary joint of claim 1, wherein: and a gap is reserved between the rotating shaft and the shell and used for sealing hydraulic oil.
5. The high speed, high pressure liquid gas rotary joint of claim 1, wherein: a lip-shaped sealing ring is arranged between the end cover and the rotating shaft, and O-shaped sealing rings are arranged between the end cover and the tail cover and between the end cover and the shell.
6. A high speed, high pressure liquid gas rotary joint as set forth in claim 2, wherein: an O-shaped sealing ring is arranged between the dynamic sealing ring and the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710655669.8A CN107339534B (en) | 2017-08-03 | 2017-08-03 | High-speed high-pressure liquid-gas rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710655669.8A CN107339534B (en) | 2017-08-03 | 2017-08-03 | High-speed high-pressure liquid-gas rotary joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107339534A CN107339534A (en) | 2017-11-10 |
| CN107339534B true CN107339534B (en) | 2023-02-10 |
Family
ID=60216787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710655669.8A Active CN107339534B (en) | 2017-08-03 | 2017-08-03 | High-speed high-pressure liquid-gas rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107339534B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5104154A (en) * | 1989-04-25 | 1992-04-14 | Kabushiki Kaisha Kobe Seiko Sho | Swivel joint |
| CN101169205A (en) * | 2007-11-19 | 2008-04-30 | 韶关液压件厂有限公司 | High pressure high speed rotation joint |
| CN101351667A (en) * | 2005-12-28 | 2009-01-21 | 伊格尔工业股份有限公司 | Rotary joint |
| CN102003587A (en) * | 2010-11-15 | 2011-04-06 | 中国农业大学 | Rotating joint for vacuum device |
| CN102661464A (en) * | 2012-02-14 | 2012-09-12 | 徐州徐工随车起重机有限公司 | Dual-purpose central rotary joint for hydraulic oil and gas |
| CN103672259A (en) * | 2012-08-30 | 2014-03-26 | 益科博能源科技（上海）有限公司 | Double-channel rotating joint |
| CN105570580A (en) * | 2016-01-19 | 2016-05-11 | 江苏省无锡探矿机械总厂有限公司 | Double-medium high-pressure rotating joint |
| CN205479859U (en) * | 2015-12-31 | 2016-08-17 | 上海捷旋机械有限公司 | Two pass gas -liquid rotary joint |
| CN207470986U (en) * | 2017-08-03 | 2018-06-08 | 无锡市艾可密封技术有限公司 | A kind of high speed and high pressure liquid cyclone adapter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10256537A1 (en) * | 2002-12-04 | 2004-07-22 | Christian Maier Gmbh & Co Maschinenfabrik | Device for supplying a gaseous and / or liquid medium to a rotating pressure system |
-
2017
- 2017-08-03 CN CN201710655669.8A patent/CN107339534B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5104154A (en) * | 1989-04-25 | 1992-04-14 | Kabushiki Kaisha Kobe Seiko Sho | Swivel joint |
| CN101351667A (en) * | 2005-12-28 | 2009-01-21 | 伊格尔工业股份有限公司 | Rotary joint |
| CN101169205A (en) * | 2007-11-19 | 2008-04-30 | 韶关液压件厂有限公司 | High pressure high speed rotation joint |
| CN102003587A (en) * | 2010-11-15 | 2011-04-06 | 中国农业大学 | Rotating joint for vacuum device |
| CN102661464A (en) * | 2012-02-14 | 2012-09-12 | 徐州徐工随车起重机有限公司 | Dual-purpose central rotary joint for hydraulic oil and gas |
| CN103672259A (en) * | 2012-08-30 | 2014-03-26 | 益科博能源科技（上海）有限公司 | Double-channel rotating joint |
| CN205479859U (en) * | 2015-12-31 | 2016-08-17 | 上海捷旋机械有限公司 | Two pass gas -liquid rotary joint |
| CN105570580A (en) * | 2016-01-19 | 2016-05-11 | 江苏省无锡探矿机械总厂有限公司 | Double-medium high-pressure rotating joint |
| CN207470986U (en) * | 2017-08-03 | 2018-06-08 | 无锡市艾可密封技术有限公司 | A kind of high speed and high pressure liquid cyclone adapter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107339534A (en) | 2017-11-10 |
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