CN105697909B - A kind of cryogenic swivel - Google Patents
A kind of cryogenic swivel Download PDFInfo
- Publication number
- CN105697909B CN105697909B CN201610245187.0A CN201610245187A CN105697909B CN 105697909 B CN105697909 B CN 105697909B CN 201610245187 A CN201610245187 A CN 201610245187A CN 105697909 B CN105697909 B CN 105697909B
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- China
- Prior art keywords
- ring
- raceway
- inner ring
- outer ring
- attachment device
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
- F16L27/0808—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation
- F16L27/0824—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with ball or roller bearings
Abstract
A kind of cryogenic swivel disclosed by the invention, including rotary joint main body, rotary joint main body includes the outer ring connected by raceway ball bearing structure and inner ring, the lower port of outer ring is equipped with first flange, the upper port of inner ring is equipped with second flange, it further include fluid pressure drive device, the first attachment device and the second attachment device, one end of the first attachment device is fixedly connected with outer ring, and the other end of the first attachment device and the cylinder body of fluid pressure drive device connect；One end of second attachment device is fixedly connected with inner ring, and the other end of the second attachment device and the piston rod of fluid pressure drive device connect；Fluid pressure drive device is used for relative movement drives outer ring and inner ring relative rotation by cylinder body and piston rod.The present invention has the advantages that structure is simple, sealing effect is good, antifreeze ability is strong, easy to use and flexible is, it can be achieved that active drive rotation and passively follow rotation function, and the purpose that accurately controls can be achieved under active drive rotation mode.
Description
Technical field
The present invention relates to a kind of assembling pipe joints, rotate more particularly, to a kind of achievable active drive and passively follow
Rotation function, and the cryogenic swivel that can accurately control.
Background technique
Metal hose is mainly used in the flexible connection of cryogenic media transportation art, current small-bore cryogenic pipe, with
Demand increases and the increase of cryogenic media flow, this bore for allowing for pipeline need to constantly increase, if also using conventional metal
Hose connects to adapt to biggish bending and swing offset, will certainly bring great potential safety hazard.The technology of this field thus
Personnel have researched and developed the cryogenic swivel of various structures type, to meet the flexible connection demand of heavy caliber pipeline.
But there is also be easy to cause tube fluid refrigerant leakage, Yi Ji because sealing is poor for existing cryogenic swivel
The problem of low temperature condition loses function due to steam enters in raceway and freezes steel ball, especially existing cryogenic swivel is in it
Outer ring rotates at random, cannot achieve accurate control, this is for the loading system of carrier rocket, such as cryotronl on swing rod
Situations such as road connection, connector docking, transmitting station and ground pipeline joint, existing cryogenic swivel is unable to satisfy use
It is required that.
Summary of the invention
It is simple with structure, sealing effect is good, antifreeze ability the object of the present invention is to provide a kind of cryogenic swivel
By force, the advantages of easy to use and flexible, cryogenic swivel of the invention can realize active drive rotation and passively follow rotational work
Can, it can reach the purpose of accurate control Internal and external cycle relative rotation under active drive rotation mode.
To solve cryogenic swivel in the prior art, it is sealed that effect is poor to easily cause refrigerant leakage, is easy to freeze
Steel ball and lose function, and the technical issues of cannot achieve accurate control rotation, a kind of low-temperature rotary provided by the invention is connect
Head, including rotary joint main body, the rotary joint main body include the outer ring connected by raceway ball bearing structure and inner ring, outside
The lower port of circle is equipped with first flange, and the upper port of inner ring is equipped with second flange, wherein further include fluid pressure drive device,
One end of first attachment device and the second attachment device, first attachment device is fixedly connected with outer ring, the first attachment device
The other end and fluid pressure drive device cylinder body connect；One end of second attachment device is fixedly connected with inner ring, and second connects
The other end of connection device and the piston rod of fluid pressure drive device connect；Fluid pressure drive device is used for the phase by cylinder body and piston rod
Movement driving outer ring and inner ring are relatively rotated.
Further, a kind of cryogenic swivel of the present invention, wherein the raceway ball bearing structure includes being set to outer ring
The first raceway and the second raceway between inner sidewall and inner ring lateral wall, and steel is mounted in the first raceway and the second raceway
Ball.
Further, a kind of cryogenic swivel of the present invention, wherein first attachment device include the first connecting plate and
It is individually fixed in the first arc deck and the first U-shaped clamp of the first connection board ends；Second attachment device includes second
Connecting plate and the second arc deck and the second U-shaped clamp for being individually fixed in the second connection board ends；The fluid pressure drive device
Cylinder body on be fixed with the first link block, the second link block is fixed on the piston rod of fluid pressure drive device；First arc
Deck is buckled on the periphery wall of outer ring and fixes, and the first U-shaped clamp is stuck on the first link block and by first bearing structure
It is connected with each other, the second arc deck is buckled on the periphery wall of inner ring and fixes, and the second U-shaped clamp is stuck in the second link block
Go up and pass through second bearing structure and be connected with each other, the axis of first bearing structure and second bearing structure with rotary joint main body
Axis it is parallel.
Further, a kind of cryogenic swivel of the present invention, wherein the fluid pressure drive device, the first attachment device and
There are two second attachment device is all provided with and along the setting in a center of symmetry of the axis of rotary joint main body.
Further, a kind of cryogenic swivel of the present invention, wherein be equipped with first between the outer ring and first flange and twine
Around gasket, and press against outer ring and the lower end surface of inner ring on the first winding gasket, between the inner ring and second flange
Equipped with the second winding gasket.
Further, a kind of cryogenic swivel of the present invention, wherein between the outer ring and inner ring and be in the first raceway
Downside be equipped with the first o-ring groove, between outer ring and inner ring and in the second raceway upside be equipped with the second sealing ring ditch
Slot, between outer ring and inner ring and in third o-ring groove is equipped between the first raceway and the first o-ring groove, first is close
Self-tightening type spring tension sealing ring is mounted in seal groove, the second o-ring groove and third o-ring groove.
Further, a kind of cryogenic swivel of the present invention, wherein between the outer ring and inner ring and in the second sealing
It is additionally provided with antifreeze sealing ring on the upside of circle groove, the downside of antifreeze sealing ring is pressed in self-tightening type spring in the second o-ring groove
The upper side of tension sealing ring and the upper surface of outer ring, inner ring are equipped with peripherally outwardly extending annular convex edge simultaneously in upper port
The downside of the annular convex edge is set to be pressed in the upper side of antifreeze sealing ring.
Further, a kind of cryogenic swivel of the present invention, wherein the outer periphery of the antifreeze sealing ring is equipped with to downward
The set cap structure stretched, the set cap structure cover on the outside of the upper end of outer ring.
Further, a kind of cryogenic swivel of the present invention, wherein inner cylinder is welded on the inner sidewall of the inner ring, and
Make to form cavity between the inner sidewall of inner ring and the lateral wall of inner cylinder, the peripheral wall of inner ring is equipped with connection cavity and the first raceway
Or/and second raceway channel；The periphery wall of inner ring is equipped with the first air-path interface for being connected to cavity, and with the first raceway
Or/and second raceway connection the second air-path interface.
Further, a kind of cryogenic swivel of the present invention, wherein the first arc deck and the periphery wall of outer ring it
Between and the second arc deck and the lateral wall of inner ring between be equipped with heat insulating mattress；It is also provided on the periphery wall of the outer ring point
The steel ball mounting hole that is not connected to the first raceway and the second raceway and with being arranged with corresponding sealing briquetting.A kind of low temperature of the present invention
Rotary joint compared with prior art, has the advantage that (1) present invention by setting outer ring and inner ring, makes the lower end of outer ring
Mouth installation first flange, makes the upper port of inner ring install second flange.And pass through setting fluid pressure drive device, the first attachment device
It with the second attachment device, is fixedly connected with one end of the first attachment device with outer ring, makes the other end and liquid of the first attachment device
The cylinder body of hydraulic driver connects, while is fixedly connected with one end of the second attachment device with inner ring, makes the second attachment device
The connection of the piston rod of the other end and fluid pressure drive device, makes fluid pressure drive device pass through the relative motion of control cylinder body and piston rod
To drive outer ring and inner ring to relatively rotate.Thus just constitute that a kind of structure is simple, cryogenic swivel of using flexible, in reality
In the application of border, allows two segment pipes to connect respectively with first flange and second flange and be achieved that pipeline docks, and meet big mouth
The flexible connection requirement of diameter cryogenic pipe.Especially for the special application field of carrier rocket loading system, the present invention passes through
Fluid pressure drive device can realize the rotation of rotary joint main body active drive and passively follow two kinds of functions of rotation, revolve in active drive
Turn under mode, by relative motion between cylinder body and piston rod in control fluid pressure drive device, accurately controls inner ring and outer
Relative rotation between circle is able to satisfy the high-precision requirement of the automatic butts such as carrier rocket cryogenic propellant loading system application,
Practicability is stronger.Raceway ball bearing between inner ring and outer ring of the present invention is two pass deep groove ball bearing structure, outer ring and inner ring it
Between be provided with the first raceway and the second raceway, this structure can enhance stress equalization and relative rotation between inner ring and outer ring
Flatness.(2) it is used as prioritization scheme, the present invention is between outer ring and inner ring and the downside in the first raceway is provided with first
O-ring groove, between outer ring and inner ring and the upside in the second raceway is provided with the second o-ring groove, in outer ring and
It between inner ring and is in provided with third o-ring groove between the first raceway and the first o-ring groove, and in the first sealing ring
Self-tightening type spring tension sealing ring has been respectively mounted in groove, the second o-ring groove and third o-ring groove.This structure
Low temperature Seal Design can effectively prevent tube fluid working medium to leak outside, and can hinder by three self-tightening type spring tension sealing rings
Sealing vapour enters bearing portion, avoids and freezes steel ball because steam enters due to raceway freezes under low temperature condition and lose asking for function
Topic.(3) as advanced optimizing scheme, the present invention has welded inner cylinder on the inner sidewall of inner ring, and make inner ring inner sidewall and
Cavity is formed between the lateral wall of inner cylinder, while connection cavity and the first raceway or/and second are provided on the peripheral wall of inner ring
The channel of raceway, and the first air-path interface for being connected to cavity is provided on the periphery wall of inner ring, and with the first raceway or/
The second air-path interface being connected to the second raceway.Thus gas flow is just constituted, by making the first air-path interface and the second gas
Road interface is connect with nitrogen or working substance steam source, so that it may circulate nitrogen or working substance steam in gas flow.This knot
The anti-freeze design of structure can not only increase the thermal resistance between Internal and external cycle, while can be avoided by external gas flowing heating Internal and external cycle
Normal usage function is influenced because freezing.
Illustrated embodiment is described in further detail a kind of cryogenic swivel of the present invention with reference to the accompanying drawing:
Detailed description of the invention
Fig. 1 is a kind of stereoscopic schematic diagram of cryogenic swivel of the present invention；
Fig. 2 is a kind of partial sectional view of cryogenic swivel of the present invention.
Specific embodiment
A kind of specific embodiment of cryogenic swivel of the present invention as shown in Figure 1 to Figure 2, including rotary joint main body 1,
Rotary joint main body 1 specifically includes the outer ring 11 connected by raceway ball bearing structure and inner ring 12, the lower port in outer ring 11
First flange 2 is installed, second flange 3, first flange 2 and second flange are installed for when using in the upper port of inner ring 12
Connecting pipe.It is also provided with fluid pressure drive device 4, the first attachment device 5 and the second attachment device 6, allows the first attachment device 5
One end is fixedly connected with outer ring 11, and the other end of the first attachment device 5 is allowed to connect with the cylinder body of fluid pressure drive device 4；It allows simultaneously
One end of second attachment device 6 is fixedly connected with inner ring 12, allows the other end and fluid pressure drive device 4 of second attachment device 6
Piston rod connection.Above-mentioned fluid pressure drive device 4, the first attachment device 5, the second attachment device 6 and outer ring 11 and inner ring 12 it
Between connection type, just make fluid pressure drive device 4 that can drive outer ring 11 and inner ring 12 by the relative motion of cylinder body and piston rod
It relatively rotates, to meet requirement.Wherein, the raceway ball bearing between outer ring 11 and inner ring 12 uses two pass deep groove ball bearing
Structure, and the first raceway 13 and the second raceway 14 being set between 12 lateral wall of 11 inner sidewall of outer ring and inner ring are specifically included,
And steel ball is installed respectively in the first raceway 13 and the second raceway 14, to guarantee the stress equalization between inner ring and outer ring, increase
The flatness of strong inner ring and outer ring relative rotation.
It is arranged through the above structure and just constitutes that a kind of structure is simple, cryogenic swivel of using flexible, is actually answering
In, allows two segment pipes to connect respectively with first flange 2 and second flange 3 and achieve that pipeline docks, it is low to be able to satisfy heavy caliber
The flexible connection requirement of warm pipeline.Especially for the special application field of carrier rocket loading system, the present invention passes through hydraulic
Driving device 4 can realize the rotation of rotary joint main body active drive and passively follow two kinds of functions of rotation, rotate in active drive
Under mode, by relative motion between cylinder body and piston rod in control fluid pressure drive device 4, inner ring 12 and outer is accurately controlled
Relative rotation between circle 11, the high-precision for being able to satisfy the application of the automatic butts such as carrier rocket cryogenic propellant loading system are wanted
It asks, enhances the flexibility of practicability and control, range has been answered in expansion.
As specific embodiment, the first attachment device 5 in the present invention specifically includes the first connecting plate 51 and consolidates respectively
Due to the first arc deck 52 and the first U-shaped clamp 53 at 51 both ends of the first connecting plate.Second attachment device 6 specifically includes second
Connecting plate 61 and the second arc deck 62 and the second U-shaped clamp 63 for being individually fixed in 61 both ends of the second connecting plate.In hydraulic drive
It is fixed for the first link block 41 connecting with the first U-shaped clamp 53 on the cylinder body of dynamic device 4, while in fluid pressure drive device 4
Piston rod on be fixed for the second link block 42 connecting with the second U-shaped clamp 63, allow the first arc deck 52 to be buckled in outer
It is on the periphery wall of circle 11 and fixed, it allows the first U-shaped clamp 53 to be stuck on the first link block 41 and makes two by first bearing structure
Person is connected with each other, and the second arc deck 62 is allowed to be buckled on the periphery wall of inner ring 12 and fixed, and the second U-shaped clamp 63 is allowed to be stuck in the
It is connected with each other the two on two link blocks 42 and by second bearing structure, wherein should ensure that first bearing structure and second bearing
The axis of structure is parallel with the axis of rotary joint main body 1, controls cylinder body and piston rod by fluid pressure drive device 4 to realize
Between relative motion can drive the relative rotation between outer ring 11 and inner ring 12, and guarantee movement stationarity.It needs
It is to have plenty of, fluid pressure drive device 4, the structure of the first attachment device 5 and the second attachment device 6 and mutual connection relationship are not
Be limited to concrete mode provided above, other equivalent structure forms can also be used, if can by control cylinder body and piston rod it
Between relative motion realize driving outer ring 11 and inner ring 12 between relative rotation achieve that the purpose of the present invention.In addition, this
Specific embodiment allows fluid pressure drive device 4, the first attachment device 5 and the second attachment device 6 to be respectively provided with two, and connects along rotation
The axis setting in a center of symmetry of head main body 1 can further enhance cryogenic swivel to form Double-cylinder symmetrical driving structure
Stability improves the accuracy and convenience of control.The difference to two fluid pressure drive devices 4 can be passed through in practical application
Combination control, realizes multiple control modes, improves flexibility and the working efficiency of control.
To improve sealing performance, the first winding is provided in present embodiment between outer ring 11 and first flange 2
Gasket 21, and press against outer ring 11 and the lower end surface of inner ring 12 on first winding gasket 21, so that outer ring 11 and inner ring
The lower end and sealed outer ring 11 of 12 junctions reach sealing effect between the lower end of inner ring 12 and first flange 2 simultaneously.Simultaneously
It is also provided with the second winding gasket 31, between inner ring 12 and second flange 3 to seal between inner ring 12 and second flange 3
Junction.Especially it is worth noting that, low temperature seal design of the invention uses three self-tightening type spring tension sealing rings, specifically
Structure is that between outer ring 11 and inner ring 12 and the downside in the first raceway 13 is provided with the first o-ring groove 15, outside
Between the circle 11 and inner ring 12 and upside in the second raceway 14 is provided with the second o-ring groove 16, while in outer ring 11 and interior
It between circle 12 and is in provided with third o-ring groove 17 between the first raceway 13 and the first o-ring groove 15, and first
The sealing of self-tightening type spring tension has been respectively mounted in o-ring groove 15, the second o-ring groove 16 and third o-ring groove 17
Circle.The low temperature Seal Design of this structure can effectively prevent tube fluid work by three self-tightening type spring tension sealing rings
Matter leakage, and steam can be prevented to enter ball bearing position, it can effectively avoid and freeze under low temperature condition because steam enters due to raceway freezes
Firmly steel ball and the problem of lose function, to ensure that the stability and functionality of cryogenic swivel.
As prioritization scheme, present embodiment is between outer ring 11 and inner ring 12 and is in the second o-ring groove 16
Upside be also provided with antifreeze sealing ring 18, allow the downside of antifreeze sealing ring 18 to be pressed in self-tightening type in the second o-ring groove 16
The upper side of spring tension sealing ring and the upper surface of outer ring 11, to seal the junction of three, and make inner ring 12 in upper end
Peripherally outwardly extending annular convex edge is arranged in mouth, to make the downside of annular convex edge be pressed in the upside of antifreeze sealing ring 18
Face, so as to form complete sealing structure.In addition, present embodiment the outer periphery of antifreeze sealing ring 18 be provided with to
The set cap structure of lower extension, and set cap structure is allowed to cover on the outside of the upper end of outer ring 11, on the one hand this structure can limit antifreeze close
18 positioning of seal, enhances stable connection, on the other hand can further improve sealing effect.
As the scheme that advanced optimizes, present embodiment has also welded inner cylinder 7 on the inner sidewall of inner ring 12, makes interior
Cavity 71 is formed between the inner sidewall of circle 12 and the lateral wall of inner cylinder 7, and connection cavity 71 is provided on the peripheral wall of inner ring 12
With the channel of the first raceway 13 or/and the second raceway 14.It is provided on the periphery wall of inner ring 12 and is connected to cavity 71 simultaneously
First air-path interface 8, and the second air-path interface 9 being connected to the first raceway 13 or/and the second raceway 14.This structure setting
Make the first air-path interface 8, cavity 71, form gas stream between the first raceway 13 and the second raceway 14, the second air-path interface 9
Road, in practical applications, by allowing the first air-path interface 8 and the second air-path interface 9 to connect with nitrogen or working substance steam source, so that it may
It recycles nitrogen or working substance steam in gas flow, can not only increase the thermal resistance between outer ring and inner ring, while can be by outer
Gas flowing heating outer ring and inner ring are connect, to play antifreeze effect.
It should be noted that the present invention is in a particular application, between the first arc deck 52 and the periphery wall of outer ring 11
And second be provided with heat insulating mattress 19 between arc deck 62 and the lateral wall of inner ring 12, with reduce rotary joint main body 1 with
Heat conductivity between first attachment device 5 and the second attachment device 6, so as to avoid energy loss.In addition, the present invention is also
The steel ball mounting hole being connected to respectively with the first raceway 13 and the second raceway 14 has been opened up on the periphery wall of outer ring 11, and is matched and be arranged
Corresponding sealing briquetting 111 has been set, to facilitate the connection and assembling of each component part of rotary joint main body 1, has improved work effect
Rate.But it should be recognized that the structure of steel ball mounting hole is not limited to aforesaid way, it can also be set to other positions and be equipped with
Corresponding capping apparatus, as long as being able to achieve the technical effect for facilitating installation.
Practical application indicates that cryogenic swivel of the invention is applied in the case where latus rectum is the operating condition of 150mm pipeline: conveying is situated between
The pressure of matter is up to 1.6MPa；It is less than 20Nm without the rotational resistance of pressure condition；Rotational resistance with pressure condition is less than
100N·m；Leakage rate is less than 10-2Pam3/s.Heavy caliber cryogenic liquid transfer pipeline large curved, swing offset can be met
Connection request, and achievable active drive rotation be applied in combination and passively follow rotation by two fluid pressure drive devices 4
Etc. multiple functions.
Above embodiments are only the descriptions carried out to the preferred embodiment of the present invention, and model not is claimed to the present invention
The restriction for enclosing progress, under the premise of not departing from design principle of the present invention and spirit, this field engineers and technicians are according to this hair
The various forms of deformations that bright technical solution is made, should all fall into protection scope determined by claims of the present invention.
Claims (5)
1. a kind of cryogenic swivel, including rotary joint main body (1), the rotary joint main body (1) includes passing through raceway ball
The outer ring (11) of bearing arrangement connection and inner ring (12), the lower port of outer ring (11) are equipped with first flange (2), inner ring (12)
Upper port is equipped with second flange (3), it is characterised in that: further includes fluid pressure drive device (4), the first attachment device (5) and
One end of two attachment devices (6), first attachment device (5) is fixedly connected with outer ring (11), the first attachment device (5) it is another
One end is connect with the cylinder body of fluid pressure drive device (4)；One end of second attachment device (6) is fixedly connected with inner ring (12),
The other end of second attachment device (6) is connect with the piston rod of fluid pressure drive device (4)；Fluid pressure drive device (4) is for passing through
The relative movement drives outer ring (11) and inner ring (12) of cylinder body and piston rod relatively rotate；
The raceway ball bearing structure includes the first raceway being set between outer ring (11) inner sidewall and inner ring (12) lateral wall
(13) and the second raceway (14), and steel ball is mounted in the first raceway (13) and the second raceway (14)；
It is equipped with the first winding gasket (21) between the outer ring (11) and first flange (2), and makes outer ring (11) and inner ring
(12) lower end surface presses against on the first winding gasket (21), and second is equipped between the inner ring (12) and second flange (3)
It winds gasket (31)；
Between the outer ring (11) and inner ring (12) and the downside in the first raceway (13) is equipped with the first o-ring groove (15),
Between outer ring (11) and inner ring (12) and the upside in the second raceway (14) is equipped with the second o-ring groove (16), outer ring (11)
Between inner ring (12) and it is between the first raceway (13) and the first o-ring groove (15) equipped with third o-ring groove
(17), self-tightening is mounted in the first o-ring groove (15), the second o-ring groove (16) and third o-ring groove (17)
Formula spring tension sealing ring；
Antifreeze sealing ring is additionally provided between the outer ring (11) and inner ring (12) and on the upside of the second o-ring groove (16)
(18), the downside of antifreeze sealing ring (18) is pressed in the upside of self-tightening type spring tension sealing ring in the second o-ring groove (16)
The upper surface of face and outer ring (11), inner ring (12) are equipped with peripherally outwardly extending annular convex edge in upper port and make described
The downside of annular convex edge is pressed in the upper side of antifreeze sealing ring (18)；
The outer periphery of the antifreeze sealing ring (18) is equipped with the set cap structure extended downwardly, and the set cap structure is covered in outer ring (11)
Upper end on the outside of.
2. a kind of cryogenic swivel described in accordance with the claim 1, it is characterised in that: first attachment device (5) includes
First connecting plate (51) and the first arc deck (52) and the first U-shaped clamp for being individually fixed in the first connecting plate (51) both ends
(53)；Second attachment device (6) includes the second connecting plate (61) and is individually fixed in the of the second connecting plate (61) both ends
Two arc decks (62) and the second U-shaped clamp (63)；The first link block is fixed on the cylinder body of the fluid pressure drive device (4)
(41), the second link block (42) are fixed on the piston rod of fluid pressure drive device (4)；The first arc deck (52) is buckled in
On the periphery wall of outer ring (11) and fixed, the first U-shaped clamp (53) is stuck on the first link block (41) and by first bearing knot
Structure is connected with each other, and the second arc deck (62) is buckled on the periphery wall of inner ring (12) and fixed, the second U-shaped clamp (63)
It is stuck on the second link block (42) and is connected with each other by second bearing structure, the axis of first bearing structure and second bearing structure
Line is parallel with the axis of rotary joint main body (1).
3. a kind of cryogenic swivel according to claim 2, it is characterised in that: the fluid pressure drive device (4), first
Attachment device (5) and the second attachment device (6) are all provided with there are two and set along the axis of rotary joint main body (1) is in a center of symmetry
It sets.
4. a kind of cryogenic swivel described in accordance with the claim 3, it is characterised in that: welded on the inner sidewall of the inner ring (12)
Inner cylinder (7) are connected to, and make to form cavity (71) between the inner sidewall of inner ring (12) and the lateral wall of inner cylinder (7), inner ring (12)
Peripheral wall is equipped with the channel of connection cavity (71) and the first raceway (13) or/and the second raceway (14)；The periphery wall of inner ring (12)
It is equipped with the first air-path interface (8) being connected to cavity (71), and is connected to the first raceway (13) or/and the second raceway (14)
The second air-path interface (9).
5. a kind of cryogenic swivel according to claim 4, it is characterised in that: the first arc deck (52) and outer
It encloses between the periphery wall of (11) and is equipped with heat insulating mattress (19) between the second arc deck (62) and the lateral wall of inner ring (12)；
The steel ball installation being connected to respectively with the first raceway (13) and the second raceway (14) is also provided on the periphery wall of the outer ring (11)
Hole and with being arranged with corresponding sealing briquetting (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610245187.0A CN105697909B (en) | 2016-04-19 | 2016-04-19 | A kind of cryogenic swivel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610245187.0A CN105697909B (en) | 2016-04-19 | 2016-04-19 | A kind of cryogenic swivel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105697909A CN105697909A (en) | 2016-06-22 |
| CN105697909B true CN105697909B (en) | 2019-10-11 |
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|---|---|---|---|
| CN201610245187.0A Active CN105697909B (en) | 2016-04-19 | 2016-04-19 | A kind of cryogenic swivel |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6854665B2 (en) * | 2017-02-21 | 2021-04-07 | アズビル株式会社 | How to manufacture limit switches |
| CN110005888B (en) * | 2019-04-30 | 2024-03-01 | 鞍山市昱虎流体设备有限公司 | Anti-freezing low-temperature fluid rotary joint |
| CN110005887B (en) * | 2019-04-30 | 2024-03-12 | 鞍山市昱虎流体设备有限公司 | Detachable anti-freezing low-temperature fluid rotary joint |
| CN110360397B (en) * | 2019-08-08 | 2024-03-08 | 苏州瀚隆石化装备有限公司 | Ultralow temperature rotary joint |
| CN111692443B (en) * | 2020-07-03 | 2023-07-25 | 大连华锐重工集团股份有限公司 | Insulating rotary joint for connecting low-temperature fluid conveying pipeline |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202272724U (en) * | 2011-10-14 | 2012-06-13 | 上海冠卓企业发展有限公司 | Novel ultralow-temperature loading and unloading arm |
| CN102927389A (en) * | 2012-11-19 | 2013-02-13 | 江苏长隆石化装备有限公司 | Swivel joint for entrucking low-temperature LNG (liquefied natural gas) |
| CN103423586A (en) * | 2013-08-23 | 2013-12-04 | 连云港远洋流体装卸设备有限公司 | Crane type marine cryogenic fluid filling device |
| CN103486370A (en) * | 2013-09-30 | 2014-01-01 | 张胜虎 | Rotating joint, loading arm with rotating joint and loading equipment with loading arm |
| CN103867890A (en) * | 2014-03-13 | 2014-06-18 | 江苏长隆石化装备有限公司 | LNG (liquefied natural gas) fuel adding device for inland river boat |
| CN203922714U (en) * | 2014-05-21 | 2014-11-05 | 连云港天邦科技开发有限公司 | A kind of liquid entrucking arm with New type rotating joint |
| CN205136894U (en) * | 2015-11-18 | 2016-04-06 | 连云港市拓普科技发展有限公司 | Low temperature rotary joint |
-
2016
- 2016-04-19 CN CN201610245187.0A patent/CN105697909B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202272724U (en) * | 2011-10-14 | 2012-06-13 | 上海冠卓企业发展有限公司 | Novel ultralow-temperature loading and unloading arm |
| CN102927389A (en) * | 2012-11-19 | 2013-02-13 | 江苏长隆石化装备有限公司 | Swivel joint for entrucking low-temperature LNG (liquefied natural gas) |
| CN103423586A (en) * | 2013-08-23 | 2013-12-04 | 连云港远洋流体装卸设备有限公司 | Crane type marine cryogenic fluid filling device |
| CN103486370A (en) * | 2013-09-30 | 2014-01-01 | 张胜虎 | Rotating joint, loading arm with rotating joint and loading equipment with loading arm |
| CN103867890A (en) * | 2014-03-13 | 2014-06-18 | 江苏长隆石化装备有限公司 | LNG (liquefied natural gas) fuel adding device for inland river boat |
| CN203922714U (en) * | 2014-05-21 | 2014-11-05 | 连云港天邦科技开发有限公司 | A kind of liquid entrucking arm with New type rotating joint |
| CN205136894U (en) * | 2015-11-18 | 2016-04-06 | 连云港市拓普科技发展有限公司 | Low temperature rotary joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105697909A (en) | 2016-06-22 |
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