CN105697909A - Low-temperature rotation connector - Google Patents
Low-temperature rotation connector Download PDFInfo
- Publication number
- CN105697909A CN105697909A CN201610245187.0A CN201610245187A CN105697909A CN 105697909 A CN105697909 A CN 105697909A CN 201610245187 A CN201610245187 A CN 201610245187A CN 105697909 A CN105697909 A CN 105697909A
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- ring
- inner ring
- raceway
- outer ring
- connecting device
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a low-temperature rotation connector. The low-temperature rotation connector comprises a rotation connector body. The rotation connector body comprises an outer ring and an inner ring which are connected through a roller path ball bearing structure. A first flange is arranged at a lower port of the outer ring, and a second flange is arranged at an upper port of the inner ring. The low-temperature rotation connector further comprises hydraulic drive devices, first connecting devices and second connecting devices. One end of each first connecting device is fixedly connected with the outer ring, and the other end of each first connecting device is connected with a cylinder body of the corresponding hydraulic drive device. One end of each second connecting device is fixedly connected with the inner ring, and the other end of each second connecting device is connected with a piston rod of the corresponding hydraulic drive device. The hydraulic drive devices are used for driving the outer ring and the inner ring to relatively rotate through the relative movement of the cylinder bodies and the piston rods. The low-temperature rotation connector has the beneficial effects of being simple in structure, good in sealing effect, high in anti-freezing capability and convenient and flexible to use, an initiative driving rotation function and a passive following rotation function can be achieved, and the purpose of accurate control can be achieved in an initiative driving rotation manner.
Description
Technical field
The present invention relates to a kind of assembling pipe joint, especially relate to one and can realize active drive rotation and passively follow spinfunction the cryogenic swivel that can accurately control。
Background technology
In cryogenic media transportation art, flexibly connecting of current small-bore cryogenic pipe mainly adopts metal hose, along with demand increases the increase with cryogenic media flow, this bore allowing for pipeline need to constantly increase, if the connection by metal hose also adopting routine adapts to bigger bending and swing offset, bigger potential safety hazard will certainly be brought。Research and develop the cryogenic swivel of various structures type for this those skilled in the art, flexibly connect demand with what meet heavy caliber pipeline。
But existing cryogenic swivel there is also and poor easily causes tube fluid refrigerant leakage because sealing, and in low temperature condition because steam enters the problem freezing steel ball and losing function in raceway, especially existing its Internal and external cycle of cryogenic swivel is random rotation, accurate control cannot be realized, this is for the loading system of carrier rocket, such as situations such as cryogenic pipe connection on fork, adapter docking, transmitting station and ground pipeline joints, existing cryogenic swivel all cannot meet instructions for use。
Summary of the invention
It is an object of the invention to provide a kind of cryogenic swivel, it has, and simple in construction, good sealing effect, antifreeze ability be strong, the advantage of easy to use and flexible, the cryogenic swivel of the present invention can realize active drive and rotates and passively follow spinfunction, can reach accurately to control the purpose that Internal and external cycle rotates against under active drive rotation mode。
For solve cryogenic swivel of the prior art its to be sealed effect poor easily caused by refrigerant leakage, easily freeze steel ball and lose function, and the technical problem accurately controlling to rotate cannot be realized, a kind of cryogenic swivel provided by the invention, including swivel joint main body, described swivel joint main body includes the outer ring and the inner ring that are connected by raceway ball bearing structure, the lower port of outer ring is provided with the first flange, the upper port of inner ring is provided with the second flange, wherein, also include fluid pressure drive device, first connecting device and the second connecting device, one end of described first connecting device is fixing with outer ring to be connected, the other end of the first connecting device is connected with the cylinder body of fluid pressure drive device；One end of described second connecting device is fixing with inner ring to be connected, and the other end of the second connecting device is connected with the piston rod of fluid pressure drive device；Fluid pressure drive device is for relatively rotating by relative movement drives outer ring and the inner ring of cylinder body and piston rod。
Further, one low humidity swivel joint of the present invention, wherein, described raceway ball bearing structure includes the first raceway and the second raceway that are arranged between medial wall, outer ring and inner ring lateral wall, and is mounted on steel ball in the first raceway and the second raceway。
Further, one low humidity swivel joint of the present invention, wherein, described first connecting device includes the first connecting plate and is individually fixed in the first arc deck and the first U-shaped dop at the first connecting plate two ends；Described second connecting device includes the second connecting plate and is individually fixed in the second arc deck and the second U-shaped dop at the second connecting plate two ends；The cylinder body of described fluid pressure drive device is fixed with the first contiguous block, the piston rod of fluid pressure drive device is fixed with the second contiguous block；Described first arc deck is buckled on the periphery wall of outer ring and fixes, first U-shaped dop is stuck on the first contiguous block and is connected with each other by clutch shaft bearing structure, described second arc deck is buckled on the periphery wall of inner ring and fixes, second U-shaped dop is stuck on the second contiguous block and is connected with each other by the second bearing arrangement, and clutch shaft bearing structure is all parallel with the axis of swivel joint main body with the axis of the second bearing arrangement。
Further, one low humidity swivel joint of the present invention, wherein, described fluid pressure drive device, the first connecting device and the second connecting device are equipped with two and axis setting in a center of symmetry along swivel joint main body。
Further, one low humidity swivel joint of the present invention, wherein, is provided with the first winding sealing gasket between described outer ring and the first flange, and make the lower surface of outer ring and inner ring press against on the first winding sealing gasket, it is provided with the second winding sealing gasket between described inner ring and the second flange。
Further, one low humidity swivel joint of the present invention, wherein, between described outer ring and inner ring and be in the downside of the first raceway and be provided with the first o-ring groove, between outer ring and inner ring and be in the upside of the second raceway and be provided with the second o-ring groove, between outer ring and inner ring and be between the first raceway and the first o-ring groove and be provided with the 3rd o-ring groove, the first o-ring groove, the second o-ring groove and the 3rd o-ring groove are mounted on self-tightening type spring tension sealing ring。
Further, one low humidity swivel joint of the present invention, wherein, between described outer ring and inner ring and be in the upside of the second annular seal space and be additionally provided with antifreeze sealing ring, upper side that the downside of antifreeze sealing ring is pressed in the second annular seal space self-tightening type spring tension sealing ring and the upper surface of outer ring, inner ring upper port be provided with peripherally outwardly extending convex annular along and the upper side that makes the downside on described convex annular edge be pressed in antifreeze sealing ring。
Further, one low humidity swivel joint of the present invention, wherein, the neighboring of described antifreeze sealing ring is provided with the set cap downwardly extended, and described set cap is enclosed within outside the upper end of outer ring。
Further, one low humidity swivel joint of the present invention, wherein, the medial wall of described inner ring is welded with inner core, and make between the medial wall of inner ring and the lateral wall of inner core formation cavity, the perisporium of inner ring is communicated with cavity and the first raceway or/and the passage of the second raceway；The periphery wall of inner ring is provided with the first air-path interface connected with cavity, and with the first raceway or/and the second air-path interface of connecting of the second raceway。
Further, one low humidity swivel joint of the present invention, wherein, between described first arc deck and the periphery wall of outer ring and between the second arc deck and the lateral wall of inner ring, it is equipped with heat insulating mattress；The periphery wall of described outer ring is further opened with the steel ball installing hole that connects with the first raceway and the second raceway respectively and supporting is provided with corresponding sealing briquetting。
One cryogenic swivel of the present invention compared with prior art, has the advantage that (1) present invention is by arranging outer ring and inner ring, makes the lower port of outer ring install the first flange, makes the upper port of inner ring install the second flange。And by arranging fluid pressure drive device, the first connecting device and the second connecting device, the one end making the first connecting device is fixed with outer ring and is connected, the other end of the first connecting device is made to be connected with the cylinder body of fluid pressure drive device, the one end simultaneously making the second connecting device is fixed with inner ring and is connected, make the other end of the second connecting device be connected with the piston rod of fluid pressure drive device, make fluid pressure drive device drive outer ring and inner ring to relatively rotate by controlling the relative motion of cylinder body and piston rod。Thus just constitute a kind of simple in construction, use cryogenic swivel flexibly, in actual applications, allow two segment pipes be achieved that pipeline docks with the first flange and the second Flange joint respectively, and meet heavy caliber cryogenic pipe flexibly connect requirement。Special application field especially for carrier rocket loading system, the present invention can realize swivel joint main body active drive by fluid pressure drive device and rotates and passively follow two kinds of functions of rotation, under active drive rotation mode, by controlling in fluid pressure drive device the relative motion between cylinder body and piston rod, it is accurately controlled rotating against between inner ring and place's circle, meeting the high-precision requirement of the automatic butt application such as carrier rocket cryogenic propellant loading system, practicality is stronger。Raceway ball bearing between inner ring of the present invention and outer ring is two pass deep groove ball bearing structure, is provided with the first raceway and the second raceway between outer ring and inner ring, and this structure can strengthen the stress equalization between inner ring and outer ring and the flatness rotated against。(2) as prioritization scheme, the present invention is between outer ring and inner ring and is in the downside of the first raceway and is provided with the first o-ring groove, between outer ring and inner ring and be in the upside of the second raceway and be provided with the second o-ring groove, between outer ring and inner ring and be between the first raceway and the first o-ring groove and be provided with the 3rd o-ring groove, and it is respectively mounted self-tightening type spring tension sealing ring in the first o-ring groove, the second o-ring groove and the 3rd o-ring groove。The low temperature Seal Design of this structure, can effectively prevent tube fluid working medium from leaking outside by three road self-tightening type spring tension sealing rings, and steam can be stoped to enter bearing portion, it is to avoid freeze because steam enters raceway and freeze steel ball the problem losing function under low temperature condition。(3) as further prioritization scheme, the present invention has welded inner core on the medial wall of inner ring, and make formation cavity between the medial wall of inner ring and the lateral wall of inner core, on the perisporium of inner ring, it is provided with connection cavity and the first raceway or/and the passage of the second raceway simultaneously, and be provided with the first air-path interface connected with cavity on the periphery wall of inner ring, and with the first raceway or/and the second air-path interface of connecting of the second raceway。Thus just constitute gas flow, by making the first air-path interface and the second air-path interface be connected with nitrogen or working substance steam source, so that it may make nitrogen or working substance steam circulate in gas flow。The anti-freeze design of this structure, not only can increase the thermal resistance between Internal and external cycle, can pass through external gas flowing heating Internal and external cycle, it is to avoid affect normal usage function because freezing simultaneously。
Below in conjunction with accompanying drawing illustrated embodiment, one cryogenic swivel of the present invention is described in further detail:
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of a kind of cryogenic swivel of the present invention；
Fig. 2 is the partial sectional view of a kind of cryogenic swivel of the present invention。
Detailed description of the invention
The detailed description of the invention of a kind of cryogenic swivel of the present invention as shown in Figure 1 to Figure 2, including swivel joint main body 1, swivel joint main body 1 specifically includes the outer ring 11 and inner ring 12 that are connected by raceway ball bearing structure, lower port in outer ring 11 is provided with the first flange 2, upper port at inner ring 12 is provided with the second flange 3, connects pipeline when the first flange 2 and the second flange are used for using。It is also provided with fluid pressure drive device the 4, first connecting device 5 and the second connecting device 6, allows one end of the first connecting device 5 fix with outer ring 11 and be connected, allow the other end of the first connecting device 5 be connected with the cylinder body of fluid pressure drive device 4；The one end simultaneously allowing the second connecting device 6 is fixed with inner ring 12 and is connected, and allows the other end of the second connecting device 6 be connected with the piston rod of fluid pressure drive device 4。Connected mode between above-mentioned fluid pressure drive device the 4, first connecting device the 5, second connecting device 6 and outer ring 11 and inner ring 12, just make fluid pressure drive device 4 outer ring 11 and inner ring 12 can be driven to relatively rotate by the relative motion of cylinder body and piston rod, to meet instructions for use。Wherein, raceway ball bearing between outer ring 11 and inner ring 12 adopts two pass deep groove ball bearing structure, and specifically include the first raceway 13 and the second raceway 14 being arranged between medial wall, outer ring 11 and inner ring 12 lateral wall, and it is respectively mounted steel ball in the first raceway 13 and the second raceway 14, to ensure the stress equalization between inner ring and outer ring, the flatness that enhancing inner ring and outer ring rotate against。
Arranged by above structure and just constitute a kind of simple in construction, use cryogenic swivel flexibly, in actual applications, allowing two segment pipes be connected with the first flange 2 and the second flange 3 respectively and achieve that pipeline docks, what can meet heavy caliber cryogenic pipe flexibly connects requirement。Special application field especially for carrier rocket loading system, the present invention can realize swivel joint main body active drive by fluid pressure drive device 4 and rotates and passively follow two kinds of functions of rotation, under active drive rotation mode, by controlling in fluid pressure drive device 4 relative motion between cylinder body and piston rod, it is accurately controlled rotating against between inner ring 11 and place's circle 12, the high-precision requirement of the automatic butt application such as carrier rocket cryogenic propellant loading system can be met, enhance the motility of practicality and control, expand and answered scope。
As detailed description of the invention, the first connecting device 5 in the present invention specifically includes the first connecting plate 51 and is individually fixed in first arc deck 52 and the first U-shaped dop 53 at the first connecting plate 51 two ends。Second connecting device 6 specifically includes the second connecting plate 61 and is individually fixed in second arc deck 62 and the second U-shaped dop 63 at the second connecting plate 61 two ends。The cylinder body of fluid pressure drive device 4 is fixed for the first contiguous block 41 being connected with the first U-shaped dop 53, on the piston rod of fluid pressure drive device 4, it is fixed for the second contiguous block 42 being connected with the second U-shaped dop 63 simultaneously, the first arc deck 52 is allowed to be buckled on the periphery wall of outer ring 11 and to fix, allow the first U-shaped dop 53 be stuck on the first contiguous block 41 and make both be connected with each other by clutch shaft bearing structure, the second arc deck 62 is allowed to be buckled on the periphery wall of inner ring 12 and to fix, allow the second U-shaped dop 63 be stuck on the second contiguous block 42 and make both be connected with each other by the second bearing arrangement, wherein should ensure that clutch shaft bearing structure is all parallel with the axis of swivel joint main body 1 with the axis of the second bearing arrangement, control the relative motion between cylinder body and piston rod with realization by fluid pressure drive device 4 and can drive rotating against between outer ring 11 and inner ring 12, and ensure the stationarity of motion。Need to be have plenty of, structure and the mutual annexation of fluid pressure drive device the 4, first connecting device 5 and the second connecting device 6 are not limited to concrete mode provided above, other equivalent structure forms can also be adopted, as long as the relative motion that can pass through to control between cylinder body and piston rod realizes driving rotating against between outer ring 11 and inner ring 12 to achieve that the purpose of the present invention。Additionally, this detailed description of the invention allows fluid pressure drive device the 4, first connecting device 5 and the second connecting device 6 be respectively provided with two, and along the axis setting in a center of symmetry of swivel joint main body 1, to form Double-cylinder symmetrical driving structure, the stability of cryogenic swivel can be further enhanced, improve the accuracy and convenience that control。Practical application can be passed through the various combination of two fluid pressure drive devices 4 is controlled, it is achieved that multiple control modes, improve motility and the work efficiency of control。
For improving sealing property, this detailed description of the invention is provided with the first winding sealing gasket 21 between outer ring 11 and the first flange 2, and make the lower surface of outer ring 11 and inner ring 12 press against on the first winding sealing gasket 21 so that the lower end of outer ring 11 and inner ring 12 junction and sealed outer ring 11, inner ring 12 lower end and the first flange 2 between reach sealing effectiveness simultaneously。Between inner ring 12 and the second flange 3, it is also provided with the second winding sealing gasket 31, to seal the junction between inner ring 12 and the second flange 3 simultaneously。What deserves to be explained is especially, the low temperature seal of the present invention is designed with three road self-tightening type spring tension sealing rings, concrete structure is, between outer ring 11 and inner ring 12 and be in the downside of the first raceway 13 and be provided with the first o-ring groove 15, between outer ring 11 and inner ring 12 and be in the upside of the second raceway 14 and be provided with the second o-ring groove 16, simultaneously between outer ring 11 and inner ring 12 and be between the first raceway 13 and the first o-ring groove 15 and be provided with the 3rd o-ring groove 17, and at the first o-ring groove 15, second o-ring groove 16 and the 3rd o-ring groove 17 have been respectively mounted self-tightening type spring tension sealing ring。The low temperature Seal Design of this structure, can effectively prevent tube fluid working medium from leaking outside by three road self-tightening type spring tension sealing rings, and steam can be stoped to enter ball bearing position, can be prevented effectively under low temperature condition because steam enters raceway icing and freeze steel ball and lose the problem of function, thus ensure that the stability of cryogenic swivel and functional。
As prioritization scheme, this detailed description of the invention is between outer ring 11 and inner ring 12 and is in the upside of the second annular seal space 16 and is also provided with antifreeze sealing ring 18, the downside allowing antifreeze sealing ring 18 is pressed in the upper side of self-tightening type spring tension sealing ring in the second annular seal space 16 and the upper surface of outer ring 11, to seal the junction of three, and make inner ring 12 that peripherally outwardly extending convex annular edge is set in upper port, so that the downside making convex annular edge is pressed in the upper side of antifreeze sealing ring 18, thus defining complete sealing structure。Additionally, this detailed description of the invention is provided with the set cap downwardly extended in the neighboring of antifreeze sealing ring 18, and allow set cap be enclosed within outside the upper end of outer ring 11, this structure can limit the positioning of antifreeze sealing ring 18 on the one hand, enhance stable connection, can further improve sealing effectiveness on the other hand。
As further prioritization scheme, this detailed description of the invention has also welded inner core 7 on the medial wall of inner ring 12, make between the medial wall of inner ring 12 and the lateral wall of inner core 7 formation cavity 71, and on the perisporium of inner ring 12, be provided with connection cavity 71 and the first raceway 13 or/and the passage of the second raceway 14。On the periphery wall of inner ring 12, it is provided with the first air-path interface 8 connected with cavity 71 simultaneously, and with the first raceway 13 or/and the second air-path interface 9 of connecting of the second raceway 14。This structure arranges and makes the first air-path interface 8, defines gas flow between cavity the 71, first raceway 13 and second raceway the 14, second air-path interface 9, in actual applications, by allowing the first air-path interface 8 and the second air-path interface 9 be connected with nitrogen or working substance steam source, nitrogen or working substance steam just can be made to circulate in gas flow, not only can increase the thermal resistance between outer ring and inner ring, external gas flowing heating outer ring and inner ring can be passed through, thus playing antifreeze effect simultaneously。
It should be noted that, the present invention is in a particular application, it is provided with heat insulating mattress 19 between the first arc deck 52 and the periphery wall of outer ring 11 and between the second arc deck 62 and the lateral wall of inner ring 12, to reduce the heat conductivity between swivel joint main body 1 and the first connecting device 5 and the second connecting device 6, thus avoiding energy loss。Additionally, the present invention has also offered the steel ball installing hole connected respectively with the first raceway 13 and the second raceway 14 on the periphery wall of outer ring 11, and supporting be provided with correspondence sealing briquetting 111, to facilitate connection and the assembling of the low each ingredient of swivel joint main body 1, improve work efficiency。But it should be recognized that the structure of steel ball installing hole is not limited to aforesaid way, it is also possible to be located at other positions and be equipped with corresponding capping apparatus, as long as the technique effect of convenient installation can be realized。
Practical application represents, the cryogenic swivel of the present invention is applied under the operating mode that latus rectum is 150mm pipeline: the pressure of pumped (conveying) medium is up to 1.6MPa；Without the rotational resistance of pressure condition less than 20N m；Rotational resistance with pressure condition is less than 100N m；Leakage rate is less than 10-2Pa m3/s。The connection request of heavy caliber cryogenic liquid transfer pipeline large curved, swing offset can be met, and active drive rotation can be realized by the combination use of two fluid pressure drive devices 4 and passively follow the several functions such as rotation。
Above example is only the description that the preferred embodiment of the present invention is carried out; not the present invention is claimed the restriction that scope carries out; under the premise without departing from design principle of the present invention and spirit; the various forms of deformation that this area engineers and technicians make according to technical scheme, all should fall in the determined protection domain of claims of the present invention。
Claims (10)
1. a cryogenic swivel, including swivel joint main body (1), described swivel joint main body (1) includes the outer ring (11) and the inner ring (12) that are connected by raceway ball bearing structure, the lower port of outer ring (11) is provided with the first flange (2), the upper port of inner ring (12) is provided with the second flange (3), it is characterized in that: also include fluid pressure drive device (4), first connecting device (5) and the second connecting device (6), one end of described first connecting device (5) is fixing with outer ring (11) to be connected, the other end of the first connecting device (5) is connected with the cylinder body of fluid pressure drive device (4)；One end of described second connecting device (6) is fixing with inner ring (12) to be connected, and the other end of the second connecting device (6) is connected with the piston rod of fluid pressure drive device (4)；Fluid pressure drive device (4) is for relatively rotating by relative movement drives outer ring (11) and the inner ring (12) of cylinder body and piston rod。
2. a kind of low humidity swivel joint described in claim 1, it is characterized in that: described raceway ball bearing structure includes the first raceway (13) and the second raceway (14) that are arranged between (11) medial wall, outer ring and inner ring (12) lateral wall, and is mounted on steel ball in the first raceway (13) and the second raceway (14)。
3. a kind of cryogenic swivel described in claim 2, it is characterised in that: described first connecting device (5) includes the first connecting plate (51) and is individually fixed in the first arc deck (52) and the first U-shaped dop (53) at the first connecting plate (51) two ends；Described second connecting device (6) includes the second connecting plate (61) and is individually fixed in the second arc deck (62) and the second U-shaped dop (63) at the second connecting plate (61) two ends；The cylinder body of described fluid pressure drive device (4) is fixed with the first contiguous block (41), the piston rod of fluid pressure drive device (4) is fixed with the second contiguous block (42)；Described first arc deck (52) is buckled on the periphery wall of outer ring (11) and fixes, first U-shaped dop (53) is stuck in the first contiguous block (41) and above and is connected with each other by clutch shaft bearing structure, described second arc deck (62) is buckled on the periphery wall of inner ring (12) and fixes, second U-shaped dop (63) is stuck in the second contiguous block (42) and above and is connected with each other by the second bearing arrangement, and clutch shaft bearing structure is all parallel with the axis of swivel joint main body (1) with the axis of the second bearing arrangement。
4. a kind of cryogenic swivel described in claim 3, it is characterised in that: described fluid pressure drive device (4), the first connecting device (5) and the second connecting device (6) are equipped with two and axis setting in a center of symmetry along swivel joint main body (1)。
5. a kind of cryogenic swivel described in claim 4, it is characterized in that: between described outer ring (11) and the first flange (2), be provided with the first winding sealing gasket (21), and make the lower surface of outer ring (11) and inner ring (12) press against on the first winding sealing gasket (21), it is provided with the second winding sealing gasket (31) between described inner ring (12) and the second flange (3)。
6. a kind of cryogenic swivel described in claim 5, it is characterized in that: between described outer ring (11) and inner ring (12) and be in the downside of the first raceway (13) and be provided with the first o-ring groove (15), between outer ring (11) and inner ring (12) and be in the upside of the second raceway (14) and be provided with the second o-ring groove (16), between outer ring (11) and inner ring (12) and be between the first raceway (13) and the first o-ring groove (15) and be provided with the 3rd o-ring groove (17), first o-ring groove (15), second o-ring groove (16) and the 3rd o-ring groove (17) are mounted on self-tightening type spring tension sealing ring。
7. a kind of cryogenic swivel described in claim 6, it is characterized in that: between described outer ring (11) and inner ring (12) and be in the upside of the second annular seal space (16) and be additionally provided with antifreeze sealing ring (18), the downside of antifreeze sealing ring (18) is pressed in the upper side of self-tightening type spring tension sealing ring in the second annular seal space (16) and the upper surface of outer ring (11), and inner ring (12) is provided with peripherally outwardly extending convex annular edge the upper side making the downside on described convex annular edge be pressed in antifreeze sealing ring (18) in upper port。
8. a kind of cryogenic swivel described in claim 7, it is characterised in that: the neighboring of described antifreeze sealing ring (18) is provided with the set cap downwardly extended, and described set cap is enclosed within outside the upper end of outer ring (11)。
9. a kind of cryogenic swivel described in claim 8, it is characterized in that: the medial wall of described inner ring (12) is welded with inner core (7), and make to be formed between the medial wall of inner ring (12) and the lateral wall of inner core (7) cavity (71), the perisporium of inner ring (12) is communicated with cavity (71) and the first raceway (13) or/and the passage of the second raceway (14)；The periphery wall of inner ring (12) is provided with the first air-path interface (8) connected with cavity (71), and with the first raceway (13) or/and the second air-path interface (9) of connecting of the second raceway (14)。
10. a kind of cryogenic swivel described in any one of claim 3-9, it is characterised in that: it is equipped with heat insulating mattress (19) between described first arc deck (52) and the periphery wall of outer ring (11) and between the second arc deck (62) and the lateral wall of inner ring (12)；The periphery wall of described outer ring (11) is further opened with respectively with the steel ball installing hole that the first raceway (13) and the second raceway (14) connect supporting be provided 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 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610245187.0A CN105697909B (en) | 2016-04-19 | 2016-04-19 | A kind of cryogenic swivel |
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| Publication Number | Publication Date |
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| CN105697909A true CN105697909A (en) | 2016-06-22 |
| CN105697909B 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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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461336A (en) * | 2017-02-21 | 2018-08-28 | 阿自倍尔株式会社 | The manufacturing method of limit switch |
| CN110005888A (en) * | 2019-04-30 | 2019-07-12 | 鞍山市昱虎流体设备有限公司 | Anti-freezing cryogen rotary joint |
| CN110005887A (en) * | 2019-04-30 | 2019-07-12 | 鞍山市昱虎流体设备有限公司 | Dismountable Anti-freezing cryogen rotary joint |
| CN110360397A (en) * | 2019-08-08 | 2019-10-22 | 苏州瀚隆石化装备有限公司 | A kind of ultralow temperature rotary joint |
| CN111692443A (en) * | 2020-07-03 | 2020-09-22 | 大连华锐重工集团股份有限公司 | Insulating rotary joint for connecting cryogenic fluid conveying pipelines |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108461336A (en) * | 2017-02-21 | 2018-08-28 | 阿自倍尔株式会社 | The manufacturing method of limit switch |
| CN110005888A (en) * | 2019-04-30 | 2019-07-12 | 鞍山市昱虎流体设备有限公司 | Anti-freezing cryogen rotary joint |
| CN110005887A (en) * | 2019-04-30 | 2019-07-12 | 鞍山市昱虎流体设备有限公司 | Dismountable Anti-freezing cryogen rotary joint |
| 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 |
| CN110360397A (en) * | 2019-08-08 | 2019-10-22 | 苏州瀚隆石化装备有限公司 | A kind of ultralow temperature 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 |
| CN111692443A (en) * | 2020-07-03 | 2020-09-22 | 大连华锐重工集团股份有限公司 | Insulating rotary joint for connecting cryogenic fluid conveying pipelines |
| 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 |
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