CN107407449B - Rotary joint - Google Patents
Rotary joint Download PDFInfo
- Publication number
- CN107407449B CN107407449B CN201680014633.5A CN201680014633A CN107407449B CN 107407449 B CN107407449 B CN 107407449B CN 201680014633 A CN201680014633 A CN 201680014633A CN 107407449 B CN107407449 B CN 107407449B
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- Prior art keywords
- rotor
- extension
- axis
- rotary joint
- shell
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/063—Fixing them on the shaft
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
- Sealing Devices (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
Rotary joint includes rotor (1), rotates around axes O；Shell (11), is disposed in the periphery of rotor (1)；And parts of bearings (21), rotor (1) is supported on shell (11) by it in a way freely spinning way, the 1st end (one end) (1A) opening in the direction axis (O) and the flow path (5 of heating medium circulation are formed in rotor (1), 6), it is formed between shell (11) and rotor (1) and flow path (5, 6) communication chamber (15 being connected to, 16), parts of bearings (21) is disposed at at least one party in the 2nd end (the other end) side (1B) in the direction axis (O) and the radially outer peripheral side relative to axis (O) far from flow path (5, and communication chamber (15 6), 16) position, in flow path (5, 6) between parts of bearings (21) and communication chamber (15, 16) between parts of bearings (21) at least one party set It is equipped with radiating part (9,10,22,23).
Description
Technical field
The present invention relates to for the rotary bodies such as steam-tube dryer, heating roller supply high temperature the thermal mediums such as steam or will
The rotary joint of the thermal mediums such as the steam of high temperature discharge.
The application according on May 19th, 2015 Japanese publication Japanese Patent Application 2015-101754 CLAIM OF PRIORITY, and
It is hereby incorporated its content.
Background technique
As such rotary joint, such as a kind of rotary joint is proposed in patent document 1, rotary joint tool
Have: the open shell of one end；The rotor of tubulose, be supported in a way freely spinning way by a pair of bearings in the shell and
One end is installed as coaxial with rotary body；Spacer is installed so that between a pair of bearings and is provided with interval；And inner tube,
It is set to shell in a manner of the inside for penetrating through rotor, which is configured to, and thermal medium is made to pass through inner tube and be supplied to
Inside rotary body, also, thermal medium for heating is passed through between inner tube and rotor and is discharged in the rotary body.
In addition, in patent document 2, as the sealing element of such rotary joint, proposing containing as matrix resin
Condensation polycyclic polynuclear aromatic resin, the reinforcing fibre, the carbon as lampblack that are made of polyphenylene sulfide fibre or carbon fiber
It is the sealing element including filler as filler, fluororesin or silicon compound.In addition, in patent document 1, also describing
Use sealing ring of the sealing ring of special carbon as in by shell with the inner sealing of rotor.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2007-120694 bulletin
Patent document 2: Japanese Unexamined Patent Publication 2007-016173 bulletin
Summary of the invention
Subject to be solved by the invention
Here, the bearing in rotary joint recorded in patent document 1 is that ball is equipped between Internal and external cycle is such
Rolling element rolling bearing (ball bearing), but the rotor be directly mounted at heating medium circulation rotor peripheral part, can
Sintering can be generated due to thermal medium.Therefore, in the rotary joint documented by patent document 1, make the periphery of above-mentioned spacer
The flow path that supplying lubricating grease is flowed towards each bearing is set positioned at the position in the outer part of the center than rolling element.But
In the case where patent document 1, the complication of the construction of rotary joint is incurred.
In addition, for example as the sealing element recorded in the sealing ring and patent document 2 recorded in the patent document 1,
Consider the sealing element being made of the excellent carbon of heat resistance and lubricity being used for supporting rotor as sliding bearing.But
In rotary joint in steam-tube dryer, heating roller, in general, by the axis of rotor towards carry out in a manner of lateral using.Cause
This, when using such sliding bearing, due to rotor weight and be easy to generate partial wear in the lower portion of bearing, may
It generates sudden damaged or generates the partial compromise of abnormal sound or thermal medium from abrasion due to core shift.Moreover, patent document
1, the special carbon sealing element high price and the maintainabilities such as replacement as recording in 2 are also poor.
The present invention completes in this context, its purpose is to provide even for above-mentioned steam-tube dryer and
The rotary joint of the such medium passing for high temperature of heating roller, can not also incur complication and the Gao Chengben of construction, and
The rotor bearing rotated integrally with rotary body is steadily revolved around axis by parts of bearings as general rolling bearing
Turn rotary joint freely.
Means for solving the problems
In order to solve the above problems and reach such purpose, rotary joint of the invention includes cylindric rotor,
It rotates about the axis；Shell is disposed in the periphery of the rotor；And parts of bearings, it is installed between these rotors and shell
And above-mentioned rotor is supported on above-mentioned shell in a way freely spinning way, it is formed in the inside of above-mentioned rotor in above-mentioned rotor
Opening and the flow path of heating medium circulation at (the 1st end) of above-mentioned axis direction, also, above-mentioned shell and above-mentioned rotor it
Between be formed with communication chamber with above-mentioned fluid communication, above-mentioned parts of bearings is disposed in (another in the 2nd end of above-mentioned axis direction
End) side and the position relative at least one party side in the radially outer peripheral side of above-mentioned axis far from above-mentioned flow path and communication chamber
Set, between above-mentioned flow path and above-mentioned parts of bearings between above-mentioned communication chamber and above-mentioned parts of bearings at least one party setting
There is radiating part.
In the rotary joint constituted in this way, parts of bearings is disposed in the axis side opposite with the one end of rotor openings
To the other end side and the rotor that circulates relative at least one party side in the radially outer peripheral side of axis far from heating medium
The position of communication chamber between flow path and rotor and shell.Moreover, because above-mentioned such phase from flow path and parts of bearings it
Between, between communication chamber and parts of bearings at least one party be provided with radiating part, therefore, can will be from stream by the radiating part
The heat dissipation that road, communication chamber are transmitted.Therefore, even if in the case where using general rolling bearing as parts of bearings, also not
The complication of construction can be incurred to prevent from being sintered, can be steadily to rotate about the axis freely by rotor bearing.
Moreover, along with that in this way can be steadily to rotate about the axis to rotate integrally with rotary body freely by rotor bearing
Rotor and the gap be fixed in a manner of non-rotary between the shell of rotor also can steadily maintain.Therefore, Neng Gouti
For rotary joint as follows: as the sealing element sealed between the periphery and shell by rotor, even if without using patent text
The special sealing element as recording in 1,2 is offered, and such as gland is used to pad such sealing element or with lubricity
Bushing (sliding bearing) can also prevent the breakage as caused by partial wear or the generation of abnormal sound and the leakage for preventing thermal medium, energy
Enough realize the smoothly circulation of thermal medium and cheap.
Here, it as such radiating part, can be formed with the isolation of above-mentioned flow path simultaneously in the other end side of above-mentioned rotor
To the heat dissipation chamber of the external opening of above-mentioned rotor.The flow path that heating medium by the way that such heat dissipation chamber to be formed in rotor circulates
Between parts of bearings, it can prevent the heat transmitted from thermal medium from causing from opening portion and outer circumferentially external distribute of heat dissipation chamber
Parts of bearings high temperature.
In addition, in this way, can be, in the case where radiating part is arranged on rotor in the other end side of above-mentioned rotor
The flange part stretched out towards the radially outer peripheral side relative to above-mentioned axis is set.In these cases, can be made by flange part
The heat dissipation transmitted from thermal medium, and since flange part and rotor and rotary body rotate integrally, it can obtain high
Heat dissipation effect.
On the other hand, in the case where being provided with setting radiating part on the shell of communication chamber between rotor, Neng Gou
The other end side setting of the shell and the periphery interval of above-mentioned rotor and the extension for being cylindrical in shape extension, in the extension
Upper setting is towards the radially outer peripheral side fin outstanding relative to above-mentioned axis as above-mentioned radiating part.Without superfluous words, when prolonging
During transmitting in extending portion, heat is distributed, since the fin by being set to the extension makes the surface area of extension become larger,
Therefore, it can be improved heat dissipation effect.
In addition, similarly, when the other end side in above-mentioned shell is provided with the periphery interval of above-mentioned rotor simultaneously
It in the case where the extension for being cylindrical in shape extension, can be, be provided on the extension along the radial direction relative to above-mentioned axis
The opening portion of above-mentioned extension is penetrated through as above-mentioned radiating part.By the way that opening portion is arranged, the inner peripheral from opening portion can be promoted
Heat dissipation transmitted from the flow path of rotor thus, it is also possible to realize and since the other end of rotor is exposed via opening portion
Heat distributes.
In addition, the fin of the extension of the heat dissipation chamber of these rotors or flange part or shell or opening portion can be appropriate groups
Close and carry out using.For example, can the formation of rotor have heat dissipation chamber the other end periphery on be arranged flange part or
Opening portion is arranged in being set between the fin of extension for shell.Furthermore, it is possible to which fin or opening is arranged in the flange part in rotor
Portion or fin is set at spaced intervals in the periphery of the other end of rotor and the extension inner circumferential of shell.
Invention effect
As described above, according to the present invention, it even if using general rolling bearing as parts of bearings, does not also recruit
Complication or the Gao Chengben for causing construction can prevent sintering and be steadily to rotate about the axis freely by rotor bearing.In addition, by
Gap between rotor and shell also can steadily maintain, and therefore, can prevent the broken of the sealing element as caused by partial wear
The generation of damage or abnormal sound, and the leakage etc. of thermal medium is prevented, it can be realized the smooth circulation of thermal medium.
Detailed description of the invention
Fig. 1 is the perspective view for showing an embodiment of the invention.
Fig. 2 is the cross-sectional view of the axis along rotor of embodiment shown in FIG. 1.
Fig. 3 is the cross-sectional view of the axis along rotor of the variation of embodiment shown in FIG. 1.
Specific embodiment
Fig. 1 and Fig. 2 shows an embodiment of the invention.The main component of the rotary joint of present embodiment by
The metal materials such as steel are formed.It wherein, is in axes O other than part of the rotor 1 other than aftermentioned mounting portion and flange part
Centered on certain outer diameter cylindrical shape.In addition, the axes O direction of rotor 1 the 1st end (one end) 1A (in Fig. 1
Be lower left hand portion, be left part in Fig. 2) in inserted with centered on axes O, outer diameter than the smaller cylinder of rotor 1
The inner tube 2 of shape, the inner tube 2 are supported by support plate 3, which prolongs radially along comprising the plane including axes O
It stretches, the space in space and inner tube 2 between rotor 1 and inner tube 2 is in the open at one end of the rotor 1.In addition, in this application,
The end of the left direction of Fig. 2, i.e. one end are defined as the 1st end, the end of the right direction of Fig. 2, the i.e. other end are defined as
2nd end.
In addition, the mounting portion 4 of annulus plate is provided on the periphery of the one end 1A of rotor 1, it will via the mounting portion 4
One end 1A is installed as and rotary body as the drier body of steam-tube dryer (not shown), the roller main body of heating roller
Rotation axis is coaxial, and rotor 1 links with rotary body and integrally rotates around axes O as a result,.Moreover, in the inner tube 2 of rotor 1
Space and the thermal medium discharge side of the rotary body be formed by connecting as the discharge duct 5 of thermal medium.On the other hand, rotor 1 with it is interior
The thermal medium supply side in space and rotary body between pipe 2 is formed by connecting as the supply line 6 of thermal medium.
In addition, in the one end 1A of rotor 1, the 2nd end of the rotor 1 opposite with one end 1A on axes O direction
Portion (the other end) side 1B (being upper right side in Fig. 1, be right side in Fig. 2), supply line 6 is sealed by the 1st partition wall 7A.Row
Flow path 5 is in the 1st partition wall 7A upper opening out, and discharge duct 5 and supply line 6 are by airtight isolation.In addition, in rotor 1
From the 1st partition wall 7A towards the other end side 1B separated interval position be provided with the 2nd partition wall 7B, in rotor 1 the 1st,
Part between 2nd partition wall 7A, 7B becomes the discharge room 8 for the thermal medium being connected to discharge duct 5.
On the other hand, completely cut off by the part of the side the other end 1B with discharge room 8 and discharge duct 5 than the 2nd partition wall 7B, at
For the heat dissipation chamber 9 as the 1st radiating part in present embodiment.The heat dissipation chamber 9 has circular open in the other end of rotor 1
Oral area 9A and to external opening, i.e. to atmosphere opening.In addition, in rotor 1, in the position of supply line 6 and discharge room 8, edge
Circumferentially spaced alternately form multiple through holes extended vertically with axes O, these through holes respectively become thermal medium
Supply mouth 6A and outlet 8A.
In addition, in the present embodiment, being provided in the other end side 1B of rotor 1 towards the radial direction relative to axes O
The flange part 10 that peripheral side is stretched out, becomes the 2nd radiating part in present embodiment.The flange part 10 is formed as having in the central portion
Have with the opening portion 10A of the opening portion 9A same diameter of heat dissipation chamber 9 and the outer diameter annulus plate bigger than rotor 1 so that these
The flange part 10 is vertically disposed in the another of rotor 1 with axes O by the consistent mode of opening portion 9A, 10A centered on axes O
End.
It is equipped with shell 11 in the periphery of such rotor 1, which is fixed in as above-mentioned in a manner of non-rotary
The rotor 1 rotated like that around axes O, rotor 1 are supported in a way freely spinning way in the shell 11.The shell 11 is in axis
The cylindrical shape with the internal diameter bigger than the outer diameter of rotor 1 centered on line O.The 1st end on the axes O direction of the shell 11
(one end) and the 2nd end (other end) be provided with the with through hole 12A, 13A, vertical with axes O the 1st, the 2nd partition wall 12,
13, the through hole 12A, 13A have can for rotor 1 be inserted into internal diameter and centered on axes O.In addition, these the 1st,
The 3rd partition wall 14 with the through hole 14A more slightly larger than through hole 12A, 13A is provided between 2nd partition wall 12,13.In addition,
The casing ledge portion 11A stretched out towards peripheral side is provided on the periphery of the other end of shell 11.
Wherein, the space of the one end in the axes O direction between the 1st, the 3rd partition wall 12,14 becomes the confession via rotor 1
The supply communication chamber 15 being connected to mouth 6A with supply line 6.On the periphery of shell 11 at the position of the supply communication chamber 15,
It is provided with the supply pipe 15A with the supply connection of communication chamber 15 to connect with thermal medium to the feed path that rotary joint supplies.
In addition, the space of the axes O direction another side between the 2nd, the 3rd partition wall 13,14 become via rotor 1 outlet 8A with
The discharge communication chamber 16 of room 8 and the connection of discharge duct 5, the periphery of the shell 11 at the position of the discharge communication chamber 16 is discharged
On be provided with discharge pipe 16A, the discharge pipe 16A be connected to discharge communication chamber 16 thus and the row that is discharged from rotary joint of thermal medium
Outbound path connection.
In addition, these supply pipes 15A and discharge pipe 16A be separately equipped in make they center line and supply mouth 6A and row
The center line of outlet 8A identical position on axes O direction, and the internal diameter of supply pipe 15A and discharge pipe 16A are than supply
The internal diameter of mouth 6A and outlet 8A is big.In addition, the internal diameter of supply pipe 15A is bigger than the internal diameter of discharge pipe 16A, supply pipe 15A and row
Outlet pipe 16A is set as being located at reciprocal side in the circumferential direction of shell 11.
Moreover, on the 1st, the 2nd partition wall 12,13 of shell 11, in the outer peripheral surface of its through hole 12A, 13A and rotor 1
Between sealing element 17 is installed, these sealing elements 17 are that section is rectangular and by expanded graphite and carbon fiber in the present embodiment
Kernmantle constitute so-called braiding gland liner.Here, in the present embodiment, respective in the 1st, the 2nd partition wall 12,13
Axes O direction on the outside of, sealing mounting portion 12B, 13B are provided in expanding mode further than through hole 12A, 13A.In shape
It is above-mentioned at filling in the space (stuffing box) between the inner peripheral surface of these sealings mounting portion 12B, 13B and the outer peripheral surface of rotor 1
Such sealing element 17, moreover, thus being sealed thermal medium by being fastened in the cricoid liner pressing piece 18 of section L word.
In addition, being equipped with bushing 19 between the through hole 14A and rotor 1 of the 3rd partition wall 14.Bushing 19 is in this embodiment party
It will be supplied in formula and seal between communication chamber 15 and discharge communication chamber 16 and also rotatably supported with by rotor 1
The sliding bearing of the function of bearing, being is being in be soaked with containing for lubricant (lubricating oil) in the base materials such as the cricoid cast iron of section L word
Oil bearing.In addition, bushing 19 is embedded between the inner peripheral surface of through hole 14A and the outer peripheral surface of rotor 1, it is bolted equal quilts
It is installed on the 3rd partition wall 14.
On the other hand, it is provided in the other end of shell 11 and is cylindrical in shape extension at spaced intervals with the peripheral side of rotor 1
Extension 20.The main part 20A that extension 20 includes centered on axes O and shape is cylindrical；And from the main part
Stretch flange formability portion 20B, the 20C for the annulus plate that the both ends in the axes O direction of 20A are stretched out to outer peripheral side, the one end in axes O direction
The stretch flange formability portion 20B of side is fixed on casing ledge portion 11A to be installed on the other end of shell 11.The 2nd of shell 11 separates
The sealing mounting portion 13B and liner pressing piece 18 of 13 side of wall are disposed in the inside of main part 20A, and extension 20 is another
The stretch flange formability portion 20C of end side and the flange part 10 of rotor 1 are opposed at spaced intervals on axes O direction.
Moreover, being equipped with floating bearing (rolling bearing) work between the stretch flange formability portion 20C and the flange part 10 of rotor 1
For the parts of bearings 21 in present embodiment.
That is, the parts of bearings 21 is with the inner ring and peace for being installed on flange part 10 and the side in stretch flange formability portion 20C
Outer ring loaded on another party in flange part 10 and stretch flange formability portion 20C and be installed in a manner of it can roll Internal and external cycle it
Between ball as rolling element such as ball bearing, the lubrication of lubricating grease etc. is sealed between the Internal and external cycle that rolling element rolls
Agent.
Such parts of bearings 21 is installed on the peripheral part of the flange part 10 and stretch flange formability portion 20C that stretch out to outer peripheral side
Have above-mentioned Internal and external cycle, as shown in Fig. 2, relative to axes O radially, than shell 11 supply, discharge communication chamber 15,16
Match the ring-type being set as centered on axes O in the position of outer side.Therefore, in the present embodiment, by the way that 9 He of heat dissipation chamber is arranged
Extension 20, which, which is disposed in, turns in the other end side 1B in axes O direction far from the flow path as thermal medium
Discharge duct 5, supply line 6 and the discharge room 8 of son 1 and the supply as communication chamber of shell 11 being connected to them are connected to
Room 15 and the position that communication chamber 16 is discharged, also, pass through setting flange part 10 and stretch flange formability portion 20C, the parts of bearings 21
It is disposed in and is connected to far from the discharge duct 5, supply line 6 and discharge room 8 with supply in the radially outer peripheral side relative to axes O
Room 15 and the position that communication chamber 16 is discharged.
Moreover, being provided on extension 20 towards relative to the radially outer peripheral side fin 22 outstanding of axes O and edge
Relative to axes O radial perforation extension 20 opening portion 23, wherein the fin 22 is as the 3rd in present embodiment
Radiating part, the opening portion 23 is as the 4th radiating part in present embodiment.In the present embodiment, in the main body of extension 20
On the periphery of portion 20A, multiple (4) fins 22 are circumferentially, equally spaced provided with, and between these fins 22, it is multiple
(4 of quantity identical as fin 22) opening portion 23 is also circumferentially, equally spaced arranged.
Fin 22 is formed as following tabular: from the periphery main part 20A of extension 20 along comprising flat including axes O
Extended facing towards radial direction with certain overhang and is extended between stretch flange formability portion 20B, 20C along axes O direction.This
Outside, opening portion 23 is to be spaced apart lesser compartment of terrain for the main body of extension 20 in stretch flange formability portion 20B, 20C and fin 22
Portion 20A is radially penetrated through in the way of substantially integrally cutting away, and therefore, is formed as when each opening portion 23 is from peripheral side
Oblong-shaped.
In the rotary joint of such present embodiment, the supply communication chamber 15 of shell 11 is supplied to from supply pipe 15A
The steam of high temperature etc. thermal medium as described above from the supply mouth 6A of the rotor 1 rotated around axes O by supply line 6,
Such as be fed into steam-tube dryer rotation drier body as rotary body thermal medium supply side heating tube
Come the heating for treated object, drying.In addition, the thermal medium in this way for heating, the drying of treated object is from rotary body
Thermal medium be discharged lateral rotor 1 discharge duct 5 be discharged, by discharge room 8 from outlet 8A via discharge communication chamber 16 with
And discharge pipe 16A discharge.
Moreover, parts of bearings 21 is situated between relative to the heat for high temperature of rotor 1 like this in the rotary joint of above structure
Mass flow it is logical as the discharge duct 5 of flow path, supply line 6 and discharge room 8 and shell 11 with they be connected to and in the same manner as
For the supply communication chamber 15 and discharge communication chamber 16 as communication chamber of the medium passing of high temperature, rotor 1 is supported as energy
Enough rotations.In addition, parts of bearings 21 is disposed in the other end side 1B in the axes O direction of rotor 1 and relative to the diameter of axes O
At least one party (being both sides in the present embodiment) side in outer peripheral side mutually from position.Moreover, in discharge separated in this way
Between flow path 5, supply line 6 and discharge room 8 and parts of bearings 21, supply communication chamber 15 and discharge communication chamber 16 and bearing
At least one party's (in the present embodiment, being still both sides) between component 21 is provided with the heat dissipation as the 1st~the 4th radiating part
Room 9, flange part 10, the fin 22 of extension 20 and opening portion 23.
Therefore, not only parts of bearings 21 like this but also can be made to bearing far from flow path and communication chamber by radiating part
Therefore the heat dissipation that component 21 transmits can be avoided parts of bearings 21 and be exposed in high temperature.Therefore, even if directly implementing this
General floating bearing (rolling bearing) as mode is used as parts of bearings 21, will not generate burning by missing lubricant etc.
Knot can steadily support rotor 1 to rotate freely around axes O.Therefore, the construction of parts of bearings 21 will not complicate.
Further, since can be like this by the bearing of rotor 1 steadily to be rotated freely around axes O, therefore, with rotary body one
The outer peripheral surface of the rotor 1 of body rotation and the 1st~the 3rd partition wall 12 that the outer peripheral surface is fixed in a manner of non-rotary of shell 11
Gap between~14 through hole 12A~14A also can steadily maintain.Therefore, in the rotary joint of steam-tube dryer
In the case that such axes O is configured to horizontal direction, as the sealing element 17 and bushing 19 that will be sealed between them, even if such as this reality
Apply mode uses gland to pad or sliding bearing etc. like that, can also prevent the sealing element 17 as caused by partial wear or bushing 19
Damaged, abnormal sound generation, and the leakage etc. of thermal medium can be prevented.Moreover, being served as a contrast as present embodiment using gland
In the case where pad or sliding bearing etc., the smoothly construction of the supply, discharge of thermal medium and parts of bearings 21 can be realized
It simplifies, cost cutting can be promoted.
On the other hand, in the present embodiment, as the 1st radiating part in above-mentioned radiating part, in the other end of rotor 1
The side 1B is provided with heat dissipation chamber 9, the discharge duct 5, supply line 6 and discharge room 8 of the heat dissipation chamber 9 and the flow path as thermal medium
Completely cut off and in the other end of rotor 1 via opening portion 9A to external opening.According to such heat dissipation chamber 9, can make from rotor 1
The heat transmitted of discharge duct 5, supply line 6 and discharge room 8 distributed from the periphery of heat dissipation chamber 9, and make the heat also from scattered
It is distributed via opening portion 9A to outside in hot cell 9, it is therefore prevented that parts of bearings 21 is exposed in high temperature.
In addition, in the present embodiment, as the 2nd radiating part for being set to rotor 1, in the other end side 1B of rotor 1
It is provided with the flange part 10 stretched out towards the radially outer peripheral side relative to axes O, axis is installed in the peripheral part of the flange part 10
Bearing portion part 21.Therefore, even if delivering heat from the other end 1B of rotor 1, since the heat is in the peripheral side for reaching flange part 10
During distribute, and flange part 10 is rotated integrally along with the rotation of rotor 1, therefore, can obtain height against wind
Heat dissipation effect.
Moreover, in the present embodiment, the other end same side 1B with rotor 1 on the axes O direction of shell 11
The other end on, be provided with the extension 20 for being cylindrical in shape extension at spaced intervals with the periphery of the other end 1B of the rotor 1.
Therefore, it is connected to from shell 11 with the discharge duct 5 of rotor 1, supply line 6 and discharge room 8 and is supplied to or is discharged high temperature
Thermal medium supply communication chamber 15 and discharge communication chamber 16 transmitting come heat also in the extension 20 transmitting and in the biography
It is distributed in during passing.Moreover, in the present embodiment, due to being provided with 23 conduct of fin 22 and opening portion on the extension 20
In above-mentioned radiating part the 3rd, the 4th radiating part therefore can promote distributing for effective heat.
That is, being capable of increasing the surface area of extension 20 by the way that fin 22 is arranged on extension 20, therefore, can be improved
Heat dissipation effect.In addition, in the case where opening portion 23 are arranged on extension 20, the heat that can make to transmit in extension 20 from
The inner peripheral of the opening portion 23 distributes, and exposes the other end 1B of the rotor 1 in extension 20 from opening portion 23.Cause
This, the heat that the slave flow path of rotor 1 is transmitted to the other end 1B will not can pass through opening portion 23 by bored in extension 20
And it distributes.
In addition, the periphery of the other end 1B or flange part 10 in rotor 1 also can be set in such fin and opening portion
Portion.If opening portion is arranged in the other end 1B for being provided with heat dissipation chamber 9 in rotor 1, can will distribute in heat dissipation chamber 9
Heat is discharged to from the above-mentioned opening portion other than the 9A of opening portion between the opening portion and extension 20.Moreover, if also in flange
Opening portion is set in portion 10, then it can be outside from the above-mentioned opening portion other than the opening portion of extension 20 23 by the heat being discharged in this way
Portion's discharge.In addition, if fin is arranged in the other end periphery 1B of the rotor 1 of rotation or flange part 10, then can promote more
Effective heat distributes.
On the other hand, in the present embodiment, parts of bearings 21 is disposed in the other end side 1B in axes O direction and phase
The radially outer peripheral side both sides of axes O far from the discharge duct 5 of the flow path as thermal medium of rotor 1, supply line 6 and are arranged
Room 8 is with shell 11 as the supply communication chamber 15 of communication chamber and the position of discharge communication chamber 16 out.But as long as it can pass through
Radiating part inhibit heat transmitting, can be only on axes O direction mutually from and be radially positioned same position, may be reversed
Ground, on axes O direction be located at same position and only in radially outer peripheral side mutually from.But in these cases, it needs in axis
Longer rotor 1 or extension 20 or the parts of bearings 21 for needing to be relatively large in diameter on the direction line O.Therefore, such as present embodiment
Like that, it is expected that parts of bearings 21 is arranged far from the position of flow path or communication chamber in axes O direction and radial both sides.
In addition, in this way, being disposed in axes O direction and radial both sides in parts of bearings 21 far from flow path or communication chamber
In the case where position or only in the case where axes O side is upwardly away from flow path or communication chamber, sealing element 17, with bearing
The bushing 19 and parts of bearings 21 of function is from one end that rotor 1 links with rotary body along axes O direction towards the other end
Top-cross is for arranging.Therefore, the one end 1A of rotor 1 is reliably to rotate freely around axes O by rotary body and the bearing of bushing 19, this
Outside, the other end 1B is reliably to rotate freely around axes O by bushing 19 and the bearing of parts of bearings 21.Therefore, even if axes O is
Horizontal direction also can more stably maintain the perforation of the outer peripheral surface of rotor 1 and the 1st, the 2nd partition wall 12,13 at 11 both ends of shell
Gap between hole 12A, 13A.
Therefore, it as the sealing element 17 being disposed between them, can be padded as in the present embodiment using gland, energy
It enough improves the maintainabilities such as adjustment and the replacement of sealing element 17, and is capable of providing cheap rotary joint.In addition, in order to pass through
The inelastic bushing 19 as the sealing element 17 that constitutes of gland liner rotatably supports rotor 1, bushing 19 with
Small gap is needed between the outer peripheral surface of rotor 1.But it is connected in the supply communication chamber 15 sealed by the bushing 19 with discharge
What the sum to circulate in room 16 circulated in steam-tube dryer etc. is all the steam of high temperature, therefore, even if thermal medium is from the gap
What is slightly leaked is not a problem yet.
In addition, in the present embodiment, using braiding gland liner as sealing element 17, the sealing element 17 as described above
It is gland liner.But such as can be as shown in Figure 3 above embodiment variation it is such, using by punch die mold pressure
The sealing element 24 that cap packing is constituted.In addition, in the variation shown in Fig. 3, to other than sealing element 24 with above-mentioned embodiment party
The common part of formula marks same label.
Moreover, about the distance between the flow path and communication chamber of thermal medium as described above and parts of bearings 21, rotor 1
Transmit the length in the axes O direction of the other end 1B of heat and outside the 1B of the other end thoughtfully along the parts of bearings of flange part 10
The length in the axes O direction of the sum of radical length until 21 or extension 20 with from extension 20 to along stretch flange formability
The sum of radical length until the parts of bearings 21 of portion 20C is preferably 200mm or more, more preferably 400mm or more.When it is above-mentioned away from
From in short-term than this, by the temperature of thermal medium and the heat dissipation effect of radiating part, may cannot achieve until parts of bearings 21
Adequately hot distributes.
On the other hand, in the present embodiment, be provided between the flow path of thermal medium and parts of bearings 21 heat dissipation chamber 9 and
Flange part 10 is used as the 1st, the 2nd radiating part, and the extension 20 between communication chamber and parts of bearings 21 is provided with fin 22
The 3rd, the 4th radiating part are used as with opening portion 23.But radiating part can be only arranged between either side.For example, extension 20
It is disposed in the periphery of rotor 1 and is externally exposed in gas, therefore, fin 22 and opening portion 23 can be not provided with or according to need
It wants and passes through and cover cover gab portion 23.
It, can be with moreover, the extension 20 of the other end 1B and shell 11 for the rotor 1 that is provided with such radiating part
It blows air by fan etc. to carry out air-cooled or according to circumstances carry out water cooling, to forcibly be cooled down.In addition,
In present embodiment, it is provided with the discharge duct 5 and supply line 6 of thermal medium on rotor 1, and is provided on shell 11
The supply communication chamber 15 of thermal medium and discharge communication chamber 16, by 1 rotary joint to rotary body carry out thermal medium supply and
Discharge.However, it is possible to which the either side in these flow paths and communication chamber is only arranged, and only carry out supply or the row of thermal medium
Out.
In addition, in the present embodiment, the thermal medium discharge side connection in space and rotary body in the inner tube 2 of rotor 1 and
As the discharge duct 5 of thermal medium, on the other hand, the thermal medium supply side in space and rotary body between rotor 1 and inner tube 2 connects
Connect and become the supply line 6 of thermal medium.But it is also possible in contrast to this, using the space in inner tube 2 as the confession of thermal medium
To flow path 6 and using the space between rotor 1 and inner tube 2 as the discharge duct 5 of thermal medium, the communication chamber being connected to them
It can be supplied with and be discharged opposite structure.
Industrial availability
In accordance with the invention it is possible to provide the complication for not incurring construction and at high cost, can prevent sintering and by rotor branch
It holds steadily to rotate about the axis rotary joint freely.
Label declaration
1: rotor；1A: the 1st end (one end) of rotor 1；1B: the 2nd end (the other end) of rotor 1；2: inner tube；
4: mounting portion；5: discharge duct；6: supply line；6A: supply mouth；8: discharge room；8A: outlet；9: heat dissipation chamber's (the 1st heat dissipation
Portion)；9A: the opening portion of heat dissipation chamber 9；10: flange part (the 2nd radiating part)；10A: the opening portion of flange part 10；11: shell；12~
14: the 1~the 3rd partition wall；The through hole of 12A~14A: the 1~the 3rd partition wall 12~14；15: supply communication chamber；15A: it supplies
To pipe；16: discharge communication chamber；16A: discharge pipe；17,24: sealing element；18: liner pressing piece；19: bushing；20: extension；
20C: stretch flange formability portion；21: parts of bearings；22: fin (the 3rd radiating part)；23: the opening portion (the 4th radiating part) of extension 20；
O: the axis of rotor 1.
Claims (8)
1. a kind of rotary joint, wherein
The rotary joint includes cylindric rotor, rotates about the axis；Shell is disposed in the periphery of the rotor；And axis
Bearing portion part is installed between these rotors and shell and the rotor is supported on the shell in a way freely spinning way,
It is formed in the inside of the rotor in the 1st end of the axis direction of rotor opening and heating medium circulation
Flow path, also, be formed between the shell and the rotor communication chamber with the fluid communication,
The parts of bearings is disposed in the 2nd end side of the axis direction and the radially outer peripheral side relative to the axis
Position of at least one party side far from the flow path and communication chamber between the flow path and the parts of bearings and described is connected to
At least one party between room and the parts of bearings is provided with radiating part,
It is provided in the 2nd end side of the rotor to the radial peripheral side relative to the axis and stretches out
Flange part,
The 2nd end side of the shell is provided with the peripheral side interval with the rotor and is cylindrical in shape prolonging for extension
Extending portion,
The extension includes the main part that centered on the axis and shape is cylindrical；And from the main part
The first stretch flange formability and the second stretch flange formability for the annulus plate that the both ends of the axis direction are stretched out to outer peripheral side,
The parts of bearings is provided between the flange part and second stretch flange formability.
2. rotary joint according to claim 1, wherein
The heat dissipation chamber's conduct completely cut off with the flow path and to the external opening of the rotor is formed in the 2nd end side of the rotor
The radiating part.
3. rotary joint according to claim 1 or 2, wherein
The flange part is provided with as the radiating part.
4. rotary joint according to claim 1 or 2, wherein
It is provided on the extension to the radial peripheral side fin conduct outstanding relative to the axis
The radiating part.
5. rotary joint according to claim 1 or 2, wherein
It is provided on the extension and makees along the radial opening portion for penetrating through the extension relative to the axis
For the radiating part.
6. rotary joint according to claim 3, wherein
It is provided on the extension to the radial peripheral side fin conduct outstanding relative to the axis
The radiating part.
7. rotary joint according to claim 3, wherein
It is provided on the extension and makees along the radial opening portion for penetrating through the extension relative to the axis
For the radiating part.
8. rotary joint according to claim 4, wherein
It is provided on the extension and makees along the radial opening portion for penetrating through the extension relative to the axis
For the radiating part.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015101754A JP5984318B1 (en) | 2015-05-19 | 2015-05-19 | Rotary joint |
| JP2015-101754 | 2015-05-19 | ||
| PCT/JP2016/057095 WO2016185762A1 (en) | 2015-05-19 | 2016-03-08 | Rotary joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107407449A CN107407449A (en) | 2017-11-28 |
| CN107407449B true CN107407449B (en) | 2019-09-24 |
Family
ID=56843262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680014633.5A Active CN107407449B (en) | 2015-05-19 | 2016-03-08 | Rotary joint |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5984318B1 (en) |
| KR (1) | KR102422670B1 (en) |
| CN (1) | CN107407449B (en) |
| WO (1) | WO2016185762A1 (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5851051A (en) * | 1981-09-22 | 1983-03-25 | Kitagawa Tekkosho:Kk | Construction for cooling rotary type hydraulic cylinder |
| JPS5879185U (en) * | 1981-11-24 | 1983-05-28 | イ−グル工業株式会社 | rotary joint |
| JP2001192961A (en) * | 1999-12-23 | 2001-07-17 | Deublin Co | High temperature rotary union |
| CN2649204Y (en) * | 2003-07-10 | 2004-10-20 | 上海恒永实业有限公司 | Two-tube rotary joint for cooling rolls |
| JP2007120694A (en) * | 2005-10-31 | 2007-05-17 | Mitsubishi Heavy Ind Ltd | Rotary joint |
| CN201507743U (en) * | 2009-07-20 | 2010-06-16 | 青岛松灵电力环保设备有限公司 | Bidirectional rotating joint with external bearing |
| CN202065572U (en) * | 2011-05-17 | 2011-12-07 | 青岛松灵电力环保设备有限公司 | Cooling water rotating joint, barrel type slag cooler and circulating fluidized bed boiler |
| CN102410424A (en) * | 2011-08-25 | 2012-04-11 | 江苏腾旋科技股份有限公司 | Rotating joint with heat dissipation structure |
| CN202674635U (en) * | 2012-07-09 | 2013-01-16 | 青岛松灵电力环保设备有限公司 | Cooling water swivel joint |
| CN203176586U (en) * | 2013-04-10 | 2013-09-04 | 滕州市惠丰机械制造有限公司 | Air cooling rotating joint |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100882036B1 (en) | 2004-05-25 | 2009-02-09 | 코비디엔 아게 | Administration feeding set |
| KR20070120694A (en) | 2006-06-20 | 2007-12-26 | 삼성전자주식회사 | Display device |
-
2015
- 2015-05-19 JP JP2015101754A patent/JP5984318B1/en active Active
-
2016
- 2016-03-08 WO PCT/JP2016/057095 patent/WO2016185762A1/en active Application Filing
- 2016-03-08 CN CN201680014633.5A patent/CN107407449B/en active Active
- 2016-03-08 KR KR1020177025138A patent/KR102422670B1/en active IP Right Grant
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5851051A (en) * | 1981-09-22 | 1983-03-25 | Kitagawa Tekkosho:Kk | Construction for cooling rotary type hydraulic cylinder |
| JPS5879185U (en) * | 1981-11-24 | 1983-05-28 | イ−グル工業株式会社 | rotary joint |
| JP2001192961A (en) * | 1999-12-23 | 2001-07-17 | Deublin Co | High temperature rotary union |
| CN2649204Y (en) * | 2003-07-10 | 2004-10-20 | 上海恒永实业有限公司 | Two-tube rotary joint for cooling rolls |
| JP2007120694A (en) * | 2005-10-31 | 2007-05-17 | Mitsubishi Heavy Ind Ltd | Rotary joint |
| CN201507743U (en) * | 2009-07-20 | 2010-06-16 | 青岛松灵电力环保设备有限公司 | Bidirectional rotating joint with external bearing |
| CN202065572U (en) * | 2011-05-17 | 2011-12-07 | 青岛松灵电力环保设备有限公司 | Cooling water rotating joint, barrel type slag cooler and circulating fluidized bed boiler |
| CN102410424A (en) * | 2011-08-25 | 2012-04-11 | 江苏腾旋科技股份有限公司 | Rotating joint with heat dissipation structure |
| CN202674635U (en) * | 2012-07-09 | 2013-01-16 | 青岛松灵电力环保设备有限公司 | Cooling water swivel joint |
| CN203176586U (en) * | 2013-04-10 | 2013-09-04 | 滕州市惠丰机械制造有限公司 | Air cooling rotating joint |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5984318B1 (en) | 2016-09-06 |
| KR20180009331A (en) | 2018-01-26 |
| WO2016185762A1 (en) | 2016-11-24 |
| KR102422670B1 (en) | 2022-07-19 |
| JP2016217428A (en) | 2016-12-22 |
| CN107407449A (en) | 2017-11-28 |
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