CN106704742B - High-performance double seals rotary joint - Google Patents
High-performance double seals rotary joint Download PDFInfo
- Publication number
- CN106704742B CN106704742B CN201710072805.0A CN201710072805A CN106704742B CN 106704742 B CN106704742 B CN 106704742B CN 201710072805 A CN201710072805 A CN 201710072805A CN 106704742 B CN106704742 B CN 106704742B
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- CN
- China
- Prior art keywords
- axle sleeve
- sealing ring
- rotating shaft
- hollow rotating
- connector
- Prior art date
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- 238000007789 sealing Methods 0.000 claims abstract description 96
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 230000003068 static effect Effects 0.000 claims description 20
- 210000000988 bone and bone Anatomy 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 15
- 239000012530 fluid Substances 0.000 abstract description 14
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The present invention discloses high-performance double seals rotary joint, including hollow rotating shaft, the left end of the hollow rotating shaft is in axle sleeve internal holes, steel ball is equipped between hollow rotating shaft and axle sleeve, keep hollow rotating shaft circumferentially rotated relative to axle sleeve, the right end of hollow rotating shaft is equipped with connector, clamp sleeve is equipped between the axle sleeve and connector, the axle sleeve, connector and clamp sleeve are connected by screw to；Cavity is equipped with inside the connector and axle sleeve, and built-in first backbone sealing ring and the second backbone sealing ring, two sides of clamp sleeve are pressed on two backbone sealing rings in the inner hole of connector and axle sleeve；Using double seals technology, the sealing performance of rotary joint is made to be greatly improved, and structure is simple；It, can automatic compensating abrasion loss after two dynamic sealing faces are worn；For dangerous, harmful fluids transmission, safety is improved, environmental pollution is reduced.
Description
Technical field
The present invention relates to fluid product swivel technical field more particularly to high-performance double seals rotary joints.
Background technique
Rotary joint of the present invention allows the pipeline phase positioned at rotary joint both sides for connecting rigid conduit
To rotation.Fluid media (medium) in pipeline, can be from the pipeline that the pipeline on one side flows into another side by rotary joint.It uses extensively
In the conveying equipment for fluid substances of every profession and trade.
Rotary joint generally comprises hollow rotating shaft, axle sleeve, a connector, and connector is connect with fixed pipeline, hollow
Shaft and the pipeline of rotation connect, and hollow rotating shaft rotates in axle sleeve, to realize the connection of rotated pipe and fixed -piping.By
It needs to rotate relative to axle sleeve in hollow rotating shaft, fluid is conveyed in hollow rotating shaft, flowed between hollow rotating shaft and axle sleeve in order to prevent
Body leakage, needs to install sealing ring between hollow rotating shaft periphery and axle sleeve.Most rotary joints, sealing performance is all not bery high, right
In the fluid transmission for having certain pressure, it is easy to generate leakage.In addition, sealing ring is easy mill after hollow rotating shaft rotates certain number
Damage, leaks, the medium leaked out, can often corrode sealing element again, accelerates sealing element aging, accelerates abrasion.Currently, one
As rotary joint all there is this disadvantage.
Due to this disadvantage, lead to that rotary joint or replacement sealing ring will be replaced at regular intervals, it is time-consuming and laborious；
And there is fluid in general fluid line for a long time, replacement rotary joint must just remove the fluid in pipeline, and equipment needs
It stops operation.
Therefore, for dangerous, harmful fluids transmission equipment, used rotary joint, it is accordingly required in particular to improve the close of it
Sealing property.Focus on improving the initial sealing between hollow rotating shaft and axle sleeve, reduce in use because sealing surface wear generates
Leakage rate.
Such as: Chinese Patent Application No. CN201410510214.3, open (bulletin) number: CN104344124A is disclosed
A kind of rigid rotating joint discloses a kind of rotary joint for oil filling riser, including outer ring, inner ring and flange, outer ring are sheathed on
Inner ring, inner ring can axially be rotated relative to outer ring, and outer ring and flanged joint are equipped with primary seal circle, outside between inner ring and flange
It is equipped with secondary seal ring between circle and inner ring, can be prevented as a result, because sealing surface generates seam after operating abrasion for a long time at sealing ring
Gap is effectively increased the sealing performance of rotary joint, improves service life.But the sealing performance of this structure is still not
Enough height, between primary seal and inner ring end face after rubbing after a period of time, the fluid of leakage will pass through the gap between inside and outside circle
Leakage, the program be mounted on inner ring secondary seal ring for stop leakage.However the secondary seal ring is easier senile abrasion,
During primary seal is worn, secondary seal ring also generates abrasion simultaneously, which cannot compensate secondary seal ring abrasion loss.In use
It was found that being easy to produce leakage after this rotary joint rotates certain number.For dangerous, harmful fluids transmission, the structure is close
Sealing property is not high enough, also not durable enough.
Summary of the invention
Sealing performance is not high enough between hollow rotating shaft and axle sleeve in rotary joint in the prior art in order to overcome by the present invention,
The deficiency for being easy to cause fluid to leak, provides that initial sealing between a kind of hollow rotating shaft and axle sleeve is higher, seals in use
Abrasion loss can be compensated automatically when circle abrasion, the rotary joint with high sealing performance.
The technical solution adopted by the invention is as follows:
High-performance double seals rotary joint, including hollow rotating shaft, the left end of the hollow rotating shaft is inside axle sleeve
Kong Zhong is equipped with steel ball, keeps hollow rotating shaft circumferentially rotated relative to axle sleeve between hollow rotating shaft and axle sleeve, and hollow turn
The right end of axis is equipped with connector, and clamp sleeve, the axle sleeve, connector and clamp sleeve are equipped between the axle sleeve and connector
It is connected by screw to；Form cavity between the connector and axle sleeve, built-in first backbone sealing ring of the cavity and the second bone
Frame sealing ring, the first backbone sealing ring and the second backbone sealing ring are pressed between connector and axle sleeve by clamp sleeve.
Further, connector is close on the right side of first backbone sealing ring, the right side of clamp sleeve is close in left side；It is empty
Heart shaft is equipped with flange, and the right side of the second backbone sealing ring, the left side of the second backbone sealing ring are close in the left side of flange
It is close to axle sleeve.
Further, the steel ball is set as two rows of.
Further, the clamp sleeve uses static seal clamp sleeve.
Further, the steel ball on one side be equipped with O-ring seals.
Further, the first backbone sealing ring and the second backbone sealing ring are made of metallic framework, sealing ring body two.
Further, plug screw is additionally provided on the axle sleeve.
The invention has the following advantages:
Using double seals technology, the sealing performance of rotary joint is made to be greatly improved, and structure is simple；Two dynamic
It, can automatic compensating abrasion loss after sealing surface is worn；For dangerous, harmful fluids transmission, safety is improved, is dropped
Low environmental pollution.
Two backbone sealing rings are set in rotary joint, by the static seal clamp sleeve that specially designs reinforced seal
Circle is pressed in axle sleeve and connector inner cavity, improves the hollow Rotating shaft strocture of rotary joint, is arranged outside hollow rotating shaft special
The flange of door forms dynamic sealing for compressing the second sealing ring, and with the second sealing ring.
By size design, the dynamics for making static seal clamp sleeve compress backbone sealing ring is greater than hollow rotating shaft compression skeleton
The dynamics of sealing ring；Static seal clamp sleeve and backbone sealing ring form twice static seal, hollow rotating shaft and backbone sealing ring shape
At twice dynamic sealing；After two backbone sealing rings generate abrasion, the part being compacted can be sprung back, automatic compensating abrasion loss.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is static seal clamp sleeve structural schematic diagram used in the present invention.
Fig. 3 is hollow Rotating shaft strocture schematic diagram used in the present invention.
Fig. 4 is backbone sealing ring structural schematic diagram used in the present invention.
Specific embodiment
Following further describes the present invention with reference to the drawings:
High-performance double seals rotary joint, including hollow rotating shaft 1, the left end of the hollow rotating shaft 1 is in axle sleeve 2
In portion hole, it is equipped with steel ball 5 between hollow rotating shaft 1 and axle sleeve 2, hollow rotating shaft 1 is enable along the circumferential direction to turn relative to axle sleeve 2
Dynamic, the right end of hollow rotating shaft 1 is equipped with connector 10, and clamp sleeve 8, the axle sleeve are equipped between the axle sleeve 2 and connector 10
2, connector 10 is connect with clamp sleeve 8 by screw 7；Cavity is formed between the connector 10 and axle sleeve 2, in the cavity
The first backbone sealing ring 9 and the second backbone sealing ring 6 are filled, the first backbone sealing ring 9 and the second backbone sealing ring 6 pass through clamping sleeve
Cylinder 8 is pressed between connector 10 and axle sleeve 2.
It is close to connector 10 on the right side of first backbone sealing ring 9, the right side of clamp sleeve 8 is close in left side；Hollow turn
Axis 1 is equipped with flange, and the right side of the second backbone sealing ring 6 is close in the left side of flange, and the left side of the second backbone sealing ring 6 is tight
Post-axis set 2.The steel ball 5 is set as two rows of.The clamp sleeve 8 uses static seal clamp sleeve.The steel ball 5 is equipped on one side
O-ring seals 3.First backbone sealing ring 9 and the second backbone sealing ring 6 are made of metallic framework, sealing ring body two.It is described
Plug screw 4 is additionally provided on axle sleeve 2.
Embodiment:
High-performance double seals rotary joint as shown in Figure 1, including hollow rotating shaft 1, axle sleeve 2, static seal clamping sleeve
Cylinder 10, two 8, connector backbone sealing rings.Hollow rotating shaft 1 is in 2 internal holes of axle sleeve, between the two equipped with a certain number of
Steel ball 5 keeps hollow rotating shaft 1 circumferentially rotated relative to axle sleeve 2, and steel ball 5 is generally set to two rows, hollow to improve
Coupling stiffness between shaft 1 and axle sleeve 2.Static seal clamp sleeve 8 as shown in Figure 2 is equipped between axle sleeve 2 and connector 10,
Three is connected by screw 7.
High-performance double seals rotary joint as shown in Figure 1 is equipped with cavity, built-in first skeleton inside connector 10
Sealing ring 9, this backbone sealing ring have structure shown in Fig. 4, are made of metallic framework, sealing ring body two parts.Static seal
The right side A of clamp sleeve 8 is tightly pressed against the first backbone sealing ring 9 in the inner cavity of connector 10, makes the first reinforced seal
Circle 9, static seal clamp sleeve 8 and connector 10 are combined into an entirety.The right side face M ' (see Fig. 3) of hollow rotating shaft 1 compresses the
The left side face M of one backbone sealing ring 9, but when pressing force faces the first reinforced seal lower than the right side A of static seal clamp sleeve 8
When the pressing force of circle 9, hollow rotating shaft 1 can be relatively rotated with the first backbone sealing ring 9, the first backbone sealing ring 9 tool of selection
It has good wearability.After rotation many times, the first backbone sealing ring 9 has a small amount of abrasion, since the first backbone sealing ring 9 also has
Standby certain elasticity, can voluntarily springback compensation abrasion loss, make the right side in the left side face M and hollow rotating shaft 1 of the first backbone sealing ring 9
Has good dynamic sealing between two faces in the side face M '.
High-performance double seals rotary joint as shown in Figure 1 is equipped with the second skeleton between hollow rotating shaft 1 and axle sleeve 2
Sealing ring 6.Left side the second backbone sealing ring of B face handle 6 of static seal clamp sleeve 8 is tightly pressed against in the inner cavity of axle sleeve, makes second
Backbone sealing ring 6, static seal clamp sleeve 8 and axle sleeve 2 are combined into an entirety.Hollow rotating shaft 1 is equipped with flange, a left side for flange
The right side face N of tight second backbone sealing ring 6 of side N ' face pressure, but when left side B of the pressing force lower than static seal clamp sleeve 8 is in face of the
When the pressing force of two backbone sealing rings 6, hollow rotating shaft 1 can be relatively rotated with the second backbone sealing ring 6, the second skeleton of selection
Sealing ring 6 has performance identical with the first sealing ring 9.After rotation many times, the second backbone sealing ring 6 has a small amount of abrasion, by
Have certain elasticity in the second backbone sealing ring 6, can voluntarily springback compensation abrasion loss, make the right side of the second backbone sealing ring 6
Has good dynamic sealing between the side face N and two faces in the left side face N ' of flange.
High-performance double seals rotary joint as shown in Figure 1, one side of steel ball 5 are equipped with O-ring seals 3, for increasing
The encryption envelope degree of reliability and steel ball lubrication sealing, can not also set O-ring seals.
High-performance double seals rotary joint as shown in Figure 1, after installing sealing ring and steel ball, plug screw 4, with more
A screw 7 is tightly coupled axle sleeve 2, static seal clamp sleeve 8, connector 10, and makes two of static seal clamp sleeve 8
Tightly push down the corresponding side surface of two backbone sealing rings in side.It is transmitted by steel ball, two sides of hollow rotating shaft 1 are also tightly pressed
The firmly corresponding side surface M and N of two backbone sealing rings.As shown in Figures 2 and 3, the size L ' of static seal clamp sleeve 8 is greater than hollow
The size L of shaft 1, and two sides of static seal clamp sleeve 8 are more coarse than two side M ', N ' of hollow rotating shaft 1, therefore
It ensure that hollow rotating shaft 1 can compress two backbone sealing rings and rotate relative to two backbone sealing rings.Make rotary joint
Has very high sealing performance.
The above description is merely a specific embodiment, but the protection scope invented is not limited thereto, any ripe
Know those skilled in the art in the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, should all cover
Within the protection scope of invention.
Claims (4)
1. high-performance double seals rotary joint, including hollow rotating shaft (1), it is characterised in that: a left side for the hollow rotating shaft (1)
End is equipped with steel ball (5) between hollow rotating shaft (1) and axle sleeve (2), makes hollow rotating shaft (1) being capable of phase in axle sleeve (2) internal holes
It is circumferentially rotated for axle sleeve (2)；
The right end of hollow rotating shaft (1) is equipped with connector (10), and clamp sleeve is equipped between the axle sleeve (2) and connector (10)
(8), the axle sleeve (2), connector (10) are connect with clamp sleeve (8) by screw (7)；
Form cavity between the connector (10) and axle sleeve (2), built-in first backbone sealing ring (9) of the cavity and the second bone
Frame sealing ring (6), the first backbone sealing ring (9) and the second backbone sealing ring (6) are pressed on connector by clamp sleeve (8)
(10) between axle sleeve (2)；It is close to connector (10) on the right side of first backbone sealing ring (9), clamp sleeve (8) are close in left side
Right side；Hollow rotating shaft (1) is equipped with flange, and the right side of the second backbone sealing ring (6), the second bone are close in the left side of flange
It is close to axle sleeve (2) in the left side of frame sealing ring (6)；First backbone sealing ring (9) and the second backbone sealing ring (6) are by metal bone
Frame, sealing ring body two compositions；Plug screw (4) are additionally provided on the axle sleeve (2).
2. high-performance double seals rotary joint according to claim 1, it is characterised in that: the steel ball (5) is set as
It is two rows of.
3. high-performance double seals rotary joint according to claim 1, it is characterised in that: the clamp sleeve (8)
Using static seal clamp sleeve.
4. high-performance double seals rotary joint according to claim 1, it is characterised in that: the one of the steel ball (5)
Side is equipped with O-ring seals (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710072805.0A CN106704742B (en) | 2017-02-10 | 2017-02-10 | High-performance double seals rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710072805.0A CN106704742B (en) | 2017-02-10 | 2017-02-10 | High-performance double seals rotary joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106704742A CN106704742A (en) | 2017-05-24 |
| CN106704742B true CN106704742B (en) | 2018-12-07 |
Family
ID=58909061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710072805.0A Active CN106704742B (en) | 2017-02-10 | 2017-02-10 | High-performance double seals rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106704742B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131371A (en) * | 2017-06-16 | 2017-09-05 | 广东工业大学 | A kind of swivel joint |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3177012A (en) * | 1960-04-04 | 1965-04-06 | Fmc Corp | Swivel pipe joint and means for preventing freezing thereof |
| CN2725266Y (en) * | 2004-07-23 | 2005-09-14 | 连云港远洋流体装卸设备有限公司 | Low temperature fluid handling arm |
| CN102313096A (en) * | 2011-08-25 | 2012-01-11 | 江苏腾旋科技股份有限公司 | Reverse spherical surface type rotary joint |
| CN202501132U (en) * | 2012-03-02 | 2012-10-24 | 江苏德威机械设备有限公司 | Low-temperature rotary joint used for fluid delivery |
| CN103307440B (en) * | 2013-06-21 | 2015-07-15 | 连云港市拓普科技发展有限公司 | Special rotating joint for ultra-low-temperature fluid loading and unloading arm |
| CN103438308A (en) * | 2013-07-09 | 2013-12-11 | 中国人民解放军空军油料研究所 | Bidirectional fully-sealed rotary joint for fluid conveying |
| CN104344124A (en) * | 2014-09-28 | 2015-02-11 | 陈建平 | Rotating joint for liquid loading/unloading arm |
| CN205398098U (en) * | 2016-03-03 | 2016-07-27 | 连云港爱德石化机械有限公司 | Special oil filling riser of liquid chlorine |
| CN206669170U (en) * | 2017-02-10 | 2017-11-24 | 连云港宏泽机械设备有限公司 | High-performance double seals swivel joint |
-
2017
- 2017-02-10 CN CN201710072805.0A patent/CN106704742B/en active Active
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| Publication number | Publication date |
|---|---|
| CN106704742A (en) | 2017-05-24 |
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| PB01 | Publication | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20231017 Address after: 222000 No. 17-289, Yuzhou South Road, Haizhou District, Lianyungang City, Jiangsu Province Patentee after: Lianyungang Minglong Electromechanical Equipment Co.,Ltd. Address before: 222000 No. 2, Weiyi Road, Haizhou Development Zone, Lianyungang City, Jiangsu Province Patentee before: LIANYUNGANG HONGZE MACHINERY EQUIPMENT Co.,Ltd. |