CN105909897B - A kind of automatic compensation type high-pressure rotary joint - Google Patents
A kind of automatic compensation type high-pressure rotary joint Download PDFInfo
- Publication number
- CN105909897B CN105909897B CN201610510884.4A CN201610510884A CN105909897B CN 105909897 B CN105909897 B CN 105909897B CN 201610510884 A CN201610510884 A CN 201610510884A CN 105909897 B CN105909897 B CN 105909897B
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- CN
- China
- Prior art keywords
- static seal
- end cap
- rotary body
- housing
- dynamic sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- 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
- F16L27/087—Joints with radial fluid passages
- F16L27/093—Joints with radial fluid passages of the "banjo" type, i.e. pivoting right-angle couplings
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0218—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with only one sealing face
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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
- F16L29/00—Joints with fluid cut-off means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The present invention relates to a kind of automatic compensation type high-pressure rotary joint.The automatic compensation type high-pressure rotary joint, the rotary body being connected including housing and with housing into rotation, the upper end of the rotary body is sheathed in housing, lower end passes the setting of housing lower end, an end cap is provided with the top of housing, an end cap high-pressure oil duct is provided with end cap along the axial direction of end cap, a rotary body high-pressure oil duct is provided with a rotating body along the axial direction of rotary body, a jacking mechanism is provided with the end cap high-pressure oil duct above static seal.The automatic compensation type high-pressure rotary joint, special static seal, dynamic sealing part are set between housing end plug and rotary body, sealing between the two is sealed using alloy mechanical, by setting special annulus compensating tank between static seal and dynamic sealing, and using unique automatic pressure compensation technology, diminution product structure, volume can be while discharge pressure be improved, greatly reduce axial force, and then reduce abrasion and improve life of product.
Description
Technical field
The present invention relates to a kind of device for conveying high-pressure fluid, more particularly to a kind of automatic compensation type high-pressure rotary connects
Head.
Background technology
Swivel coupling is the critical component for being widely used in the fields such as lathe, engineering machinery, special equipment.Due to fluid
Flowable characteristic, must be by fluid encapsulation in closed pipeline space, if it is desired to allowing fluid can in the course of conveying of fluid
To carry out rotary work, that is to say, that want to allow outlet and the fluid of entrance to carry out relative rotary motion, be extremely difficult, return
Adapter is exactly the device for realizing the function.In the prior art, most of swivel couplings be rotary body and fixed shell it
Between enclosed or rubber seal is sealed using lattice, this method, which is applied, can also meet in low-pressure fluid conveying using will
Ask.When conveying high-pressure fluid, with the rise of fluid pressure itself, friction of the seal to rotary body can also raise, particularly
In high pressure, revolution at a high speed operating mode, performance is particularly evident, causes that the frictional resistance of seal is bigger, and wear-out life is than relatively low.
The content of the invention
The present invention is in order to make up the deficiencies in the prior art, there is provided it is a kind of it is reasonable in design, structural volume is small, internal leakage
It is low, stable and reliable for performance, maintenanceability is good, while discharge pressure is improved reduce axial force automatic compensation type high-pressure rotary
Joint, solve problems of the prior art.
The present invention is achieved through the following technical solutions：
A kind of automatic compensation type high-pressure rotary joint, including housing and the rotary body that is connected with housing into rotation, the rotation
The upper end of body is sheathed in housing, lower end passes the setting of housing lower end, and the lateral wall of rotary body does not contact with case inside wall,
An end cap is provided with the top of housing, the end cap is connected with housing by bolt, the lower surface of the end cap and rotary body
Upper surface is not contacted, and several positioning holes, the rotary body are offered in the upper surface surrounding of end cap along the axial direction of end cap
It is provided between housing and is used to carry the thrust bearing of axial force suffered by rotary body and for carrying rotary body force in radial
Spring bearing, an end cap high-pressure oil duct is provided with end cap along the axial direction of end cap, in the inside top of end cap high-pressure oil duct
Screw plug provided with a closure end cap high-pressure oil duct and fixed spring top, one and end cap high-pressure oil duct are offered in the side of end cap
The oil inlet being connected, being provided with one in the inside bottom of end cap high-pressure oil duct can not relative end cap radial rotary but energy opposite end
The static seal moved in the axial direction is covered, the bottom of static seal is stretched out end cap high-pressure oil duct bottom and set, is provided with static seal
One runs through the static seal endoporus of static seal upper and lower end face, and a rotary body high pressure is provided with a rotating body along the axial direction of rotary body
Oil duct, an oil-out being connected with the rotary body high-pressure oil duct is provided with the bottom of rotary body, in rotary body high-pressure oil duct
Inside top be provided with and one can not rotate against body radial rotary but the dynamic sealing that body moves in the axial direction can be rotated against,
The top of dynamic sealing is stretched out rotary body high-pressure oil duct top and set, and one is provided with dynamic sealing through the dynamic of dynamic sealing upper and lower end face
Endoporus is sealed, is provided with a jacking mechanism in the end cap high-pressure oil duct above static seal, the lower surface of the static seal is being held out against
Upper surface under the top pressure of mechanism with dynamic sealing is affixed, and the centre of the jacking mechanism is communicated with end cap high-pressure oil duct and quiet
Seal the oil-through-hole of endoporus.
The jacking mechanism includes the bullet in end cap high-pressure oil duct above static seal along the axial direction of static seal
Spring, the top of the spring are fixed on screw plug, and bottom is fixed on the middle part being located in end cap high-pressure oil duct and is provided with oil-through-hole
Spring base on, spring base lower surface abuts against the upper surface of static seal, and a connection end cap high pressure is formed among the spring
The oil-through-hole of oil duct and static seal endoporus.
Closing is provided with an oil seal seat, in oil sealing into a draining chamber in draining intracavitary between the end cap, housing and rotary body
Seat coordinates built with rotary oil seal, epipharynx and the rotary body periphery of rotary oil seal, and outer ring and oil seal seat inner hole are another in end cap
Side is provided with a drain tap, and the draining chamber is connected by a draining road with drain tap, and a ring is provided with the periphery of oil seal seat
Shape groove, is provided with an oil seal seat sealing ring in annular groove, and the oil seal seat sealing ring is squeezed between housing and oil seal seat.
Kept off between the periphery of the static seal and end cap high-pressure oil duct inwall by a static seal sealing ring and a static seal
Circle sealing, is kept off between the periphery of the dynamic sealing and rotary body high-pressure oil duct inwall by a dynamic sealing sealing ring and a dynamic sealing
Circle sealing.
The spring bearing includes the first spring bearing and the second spring bearing, and two spring bearings are respectively arranged on thrust bearing
Both sides, the seat ring of the thrust bearing is engaged with the endoporus of housing, blowout patche and the rotation mates, the support shaft
The outer ring held is engaged with the endoporus of housing, inner ring is engaged with rotary body periphery.
A static seal bearing pin is axially inserted with the lower surface of end cap, stretches out the bottom of end cap high-pressure oil duct in static seal
Side is provided with a static seal bearing pin slot being engaged with static seal bearing pin, and the bottom of the static seal bearing pin is inserted in static seal
In bearing pin slot；A dynamic sealing bearing pin is axially inserted with the upper surface of rotary body, stretches out rotary body hydraulic oil in dynamic sealing
The top side in road is provided with a dynamic sealing bearing pin slot being engaged with dynamic sealing bearing pin, and the bottom of the dynamic sealing bearing pin plugs
In in dynamic sealing bearing pin slot.
The side of housing be provided with one be connected with enclosure interior to thrust bearing and spring bearing it is grease-added add
Hydraulic fluid port.
An annular compensating tank is provided with the static seal lower surface of static seal endoporus periphery, in annular compensating tank periphery
Static seal lower surface be provided with a pressure release groove, the static seal lower surface of pressure release slot perimeter is static seal seal face,
The surrounding of static seal seal face offers the drain pan of several connection pressure release grooves and draining chamber, the static seal sealed end
Face and the upper surface of dynamic sealing are brought into close contact.
There is the incremental limited step of static seal first and static seal second of external diameter in the periphery top-down processing of static seal
Limited step, the limited step of static seal second stretch out end cap high-pressure oil duct and set, and the static seal back-up ring is limited by static seal first
Position step support, the lower surface and the upper surface of static seal back-up ring of static seal sealing ring are affixed；The periphery of dynamic sealing from lower and
On be machined with the incremental limited step of dynamic sealing first of external diameter and the limited step of dynamic sealing second, the limited step of dynamic sealing second is stretched
Go out the setting of rotary body high-pressure oil duct, the dynamic sealing back-up ring is supported by the limited step of dynamic sealing first, under dynamic sealing sealing ring
End face and the upper surface of dynamic sealing back-up ring are affixed.
There is the incremental limited step of rotary body first and rotary body of external diameter in the periphery top top-down processing of rotary body
Second limited step, there are the limited step of housing first and housing that internal diameter successively decreases in the endoporus bottom top-down processing of housing
Two limited steps, the inner ring of the first spring bearing are supported by the limited step of rotary body second, and the outer ring of the second spring bearing is by shell
The limited step of body second is supported, and the seat ring of the thrust bearing is supported by the limited step of housing first, and blowout patche is by rotary body second
The lower surface of limited step is spacing.
The beneficial effects of the invention are as follows：The automatic compensation type high-pressure rotary joint, fluid issuing and fixation can be allowed
Relative position rotary motion is produced between import, can be widely applied in lathe, high-pressure wash center, Water Cutting equipment.Housing
Special static seal, dynamic sealing part are set between end cap and rotary body, and sealing between the two is sealed using alloy mechanical, is led to
Cross and special annulus compensating tank is set between static seal and dynamic sealing, and using unique automatic pressure compensation technology, reduce
Product structure, volume, axial force can be greatly reduced while discharge pressure is improved, and then reduce abrasion and improve the product longevity
Life.
Brief description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of Fig. 1 middle housing parts；
Fig. 3 is the mplifying structure schematic diagram of static seal part in Fig. 1；
Fig. 4 is the mplifying structure schematic diagram of dynamic sealing part in Fig. 1；
Fig. 5 is the dimensional structure diagram of Fig. 1 static seals part；
Fig. 6 is the dimensional structure diagram of Fig. 1 dynamic sealings part；
Fig. 7 is the structural representation that body portion is rotated in Fig. 1；
Fig. 8 is the structural representation of oil sealing seating portion in Fig. 1.
In figure, 1, housing, 2, rotary body, 3, end cap, 4, positioning hole, 5, thrust bearing, 7, end cap high-pressure oil duct, 8, spiral shell
It is stifled, 9, oil inlet, 10, static seal, 11, static seal endoporus, 12, rotary body high-pressure oil duct, 13, oil-out, 14, dynamic sealing, 15,
Dynamic sealing endoporus, 16, spring, 17, spring base, 18, draining chamber, 19, oil seal seat, 20, rotary oil seal, 21, drain tap, 22, let out
Oil duct, 23, annular groove, 24, oil seal seat sealing ring, 25, static seal sealing ring, 26, static seal back-up ring, 27, dynamic sealing sealing ring,
28th, dynamic sealing back-up ring, 29, static seal bearing pin, 30, static seal bearing pin slot, 31, dynamic sealing bearing pin, 32, dynamic sealing bearing pin inserts
Groove, 33, oil filler, 34, annular compensating tank, 35, pressure release groove, 36, static seal seal face, 37, drain pan, 61, first
Spring bearing, the 62, second spring bearing, 101, the limited step of housing first, 102, the limited step of housing second, 101, housing
One limited step, 102, the limited step of housing second, 111, the limited step of static seal first, 112, the limiting stand of static seal second
Rank, 141, the limited step of dynamic sealing first, 142, the limited step of dynamic sealing second, 201, the limited step of rotary body first, 202,
The limited step of rotary body second.
Embodiment
For the technical characterstic for illustrating this programme can be understood, below by embodiment, and its accompanying drawing is combined, to this hair
It is bright to be described in detail.
As illustrated in figs. 1-8, the embodiment includes housing 1 and the rotary body 2 being rotatablely connected with housing 1, the rotation
The upper end of body 2 is sheathed in housing 1, lower end passes the setting of the lower end of housing 1, and the lateral wall of rotary body 2 and the madial wall of housing 1 are not
Contact, is provided with an end cap 3, the end cap 3 is connected with housing 1 by bolt, the lower surface of the end cap 3 on the top of housing 1
Do not contacted with the upper surface of rotary body 2, several positioning are offered in the upper surface surrounding of end cap 3 along the axial direction of end cap 3
Hole 4, it is provided between the rotary body 2 and housing 1 and is used to carry the thrust bearing 5 of axial force suffered by rotary body 2 and for carrying
The spring bearing 6 of the force in radial of rotary body 2, an end cap high-pressure oil duct 7 is provided with end cap 3 along the axial direction of end cap 3,
The inside top of end cap high-pressure oil duct is provided with a closure end cap high-pressure oil duct and the screw plug 8 on fixed spring top, the one of end cap 3
Side offers an oil inlet 9 being connected with end cap high-pressure oil duct 7, can not provided with one in the inside bottom of end cap high-pressure oil duct 7
The static seal 10 that moved in the axial direction relative to end cap 3 relative to the radial rotary of end cap 3 but energy, the bottom external part of static seal 10
The bottom of lid high-pressure oil duct 7 is set, and a static seal endoporus 11 for running through the upper and lower end face of static seal 10 is provided with static seal 10, along rotation
The axial direction of swivel 2 is provided with a rotary body high-pressure oil duct 12 in the rotary body 2, the bottom of rotary body 2 provided with one with it is described
The oil-out 13 that rotary body high-pressure oil duct 12 is connected, being provided with one in the inside top of rotary body high-pressure oil duct 13 can not relative rotation
Turn 2 radial rotaries but the dynamic sealing 14 that body 2 moves in the axial direction can be rotated against, rotation is stretched out on the top of dynamic sealing 14
The top of body high-pressure oil duct 11 is set, and a dynamic sealing endoporus 15 for running through the upper and lower end face of dynamic sealing 14 is provided with dynamic sealing 14,
A jacking mechanism is provided with the end cap high-pressure oil duct 7 of the top of static seal 10, the lower surface of the static seal 10 is in jacking mechanism
Upper surface under top pressure with dynamic sealing 14 is affixed, and the centre of the jacking mechanism is communicated with end cap high-pressure oil duct 7 and quiet close
Seal the oil-through-hole of endoporus 11.Dynamic sealing 14 is close together with static seal 10, seals.
The jacking mechanism includes the axial direction along static seal 10 in the top end cap high-pressure oil duct 7 of static seal 10
One spring 16, the top of the spring 16 are fixed on screw plug 8, and the middle part being located in end cap high-pressure oil duct 7 is fixed in bottom
On spring base 17 provided with oil-through-hole, the lower surface of spring base 17 abuts against the upper surface of static seal 10, the centre of the spring 17
Form the oil-through-hole of a connection end cap high-pressure oil duct 7 and static seal endoporus 11.Jacking mechanism ensure that in low-pressure, low speed rotation
When swivel coupling stable working, be that static seal 10 and dynamic sealing 14 provide initial sealing adhesive force, make dynamic sealing 14 and static seal
10 are close together by springs 16, and both relative can rotate freely motion, and static seal 10 and dynamic sealing 14 can be with
The flexible of spring 16 moves in the axial direction, and do not make to press between static seal 10 and dynamic sealing 14 is too tight, causes frictional force mistake
Greatly, static seal 10 and the end wear of dynamic sealing 14 are compensated automatically.
Closing is provided with an oil seal seat into a draining chamber 18 in draining chamber 18 between the end cap 3, housing 1 and rotary body 2
19, coordinate in oil seal seat 19 built with rotary oil seal 20, epipharynx and the periphery of rotary body 2 of rotary oil seal 20, outer ring and oil seal seat
19 inner holes, a drain tap 21 is provided with the opposite side of end cap 3, the draining chamber 18 passes through a draining road 22 and the phase of drain tap 21
Connection, an annular groove 23 is provided with the periphery of oil seal seat 19, and an oil seal seat sealing ring 24, the oil sealing are provided with annular groove 23
Seat sealing ring 24 is squeezed between housing 1 and oil seal seat 21, and rotary oil seal 20 is used for the fluid and support shaft for isolating accidental spillage
Hold 6.
To ensure to seal, sealed between the periphery of the static seal 10 and the inwall of end cap high-pressure oil duct 7 by a static seal
The static seal back-up ring 26 of circle 25 and one seals, dynamic by one between the periphery of the dynamic sealing 14 and the inwall of rotary body high-pressure oil duct 12
The sealing dynamic sealing back-up ring 28 of sealing ring 27 and one seals.
The spring bearing includes the first spring bearing 61 and the second spring bearing 62, two spring bearings are respectively arranged on thrust
The both sides of bearing 5, the seat ring of the thrust bearing 5 is engaged with the endoporus of housing 1, blowout patche is engaged with the rotary body 2, institute
The outer ring for stating spring bearing 6 is engaged with the endoporus of housing 1, inner ring is engaged with the periphery of rotary body 2.
A static seal bearing pin 29 is axially inserted with the lower surface of end cap 3, stretches out end cap high-pressure oil duct 7 in static seal 10
Bottom side be provided with a static seal bearing pin slot 30 being engaged with static seal bearing pin 29, the bottom of the static seal bearing pin 29
It is inserted in static seal bearing pin slot 30；A dynamic sealing bearing pin 31 is axially inserted with the upper surface of rotary body 2, in dynamic sealing
The top side of 14 stretching rotary body high-pressure oil ducts 12 is provided with a dynamic sealing bearing pin slot 32 being engaged with dynamic sealing bearing pin 31,
The bottom of the dynamic sealing bearing pin 31 is inserted in dynamic sealing bearing pin slot 32.
Be provided with the side of housing 1 one be connected inside housing 1 it is grease-added to thrust bearing 5 and spring bearing 6
Oil filler 33.
To reduce axial force of the hydraulic coupling to rotatory sealing end face, in the lower surface of static seal 10 of the periphery of static seal endoporus 11
An annular compensating tank 34 is provided with, a pressure release groove is provided with the lower surface of static seal 10 of the periphery of annular compensating tank 34
35, the lower surface of static seal 10 of the periphery of pressure release groove 35 is static seal seal face 36, in the surrounding of static seal seal face 36
Offer the drain pan 37 of several connection pressure release grooves 35 and draining chamber 18, the static seal seal face 36 and dynamic sealing 14
Upper surface be brought into close contact.The fluid of accidental spillage can enter draining chamber 18 by pressure release groove 35, then from draining chamber 18 through letting out
Oil duct 22 is discharged from drain tap 21.The effect of annular compensating tank 34 is to realize static seal 10 and the seal face of dynamic sealing 14
Between can obtain a stable static pressure, with improve sealing effect and stability.
There is incremental the first limited step of static seal 111 and static seal of external diameter in the periphery top-down processing of static seal 10
Second limited step 112, the second limited step of static seal 112 stretch out end cap high-pressure oil duct 7 and set, the static seal back-up ring 26 by
The limited step of static seal first is supported, and the lower surface and the upper surface of static seal back-up ring 28 of static seal sealing ring 27 are affixed；Dynamic
The periphery bottom-up processing of sealing 14 has incremental the first limited step of dynamic sealing 141 and the limited step of dynamic sealing second of external diameter
142, the second limited step of dynamic sealing 142 stretches out rotary body high-pressure oil duct 12 and set, and the dynamic sealing back-up ring 28 is by dynamic sealing the
One limited step 141 is supported, and the lower surface and the upper surface of dynamic sealing back-up ring 28 of dynamic sealing sealing ring 27 are affixed.
There are incremental the first limited step of rotary body 201 of external diameter and rotation in the periphery top top-down processing of rotary body 2
The second limited step 202 is turned, has the limited step of housing first that internal diameter successively decreases in the endoporus bottom top-down processing of housing 1
101 and the second limited step of housing 102, the inner ring of the first spring bearing 61 supported by the second limited step of rotary body 202, second
The outer ring of spring bearing 62 is supported by the second limited step of housing 102, and the seat ring of the thrust bearing 5 is by the limiting stand of housing first
Rank 101 supports, and blowout patche is spacing by the lower surface of the second limited step of rotary body 202.
When automatic compensation type high-pressure rotary joint of the present invention is applied into high-pressure wash deburring center, end cap 3 is fixed
On the main shaft frame of equipment, rotary body 2 is connected and fixed by screw thread oil-out 13 and rotary nozzle mechanism, and with rotation
Mechanism rotates, and external high-pressure fluid enters end cap high-pressure oil duct 7 by the oil inlet 9 on end cap 3.Because static seal 10 is by quiet
Sealing bearing pin 29 is fixed together with end cap 3, keeps both relative position not rotate, high-pressure fluid can be by end cap high-pressure oil duct
The 7 static seal endoporus 11 entered in static seal 10, because static seal 10 is close using the progress of axial floating seal with dynamic sealing 14
Envelope, and dynamic sealing 14 is fixed together rotation by dynamic sealing bearing pin 31 and rotary body 2, from the high-pressure spray of static seal endoporus 11
Body will be transported in the dynamic sealing endoporus 15 in dynamic sealing 14, then is entered by the oil duct of dynamic sealing endoporus 12 in rotary body 2
Into the rotary nozzle mechanism being connected with oil-out 13, and then that realizes high-pressure fluid rotates against work.Static seal 10 is with moving
The leakage that the minority of fluid revealed between sealing 14 is connected by draining chamber 18 by the inflow of draining road 22 with drain tap 21 is special
With pipeline, and then outside discharger.
Part is not described in detail by the present invention, is the known technology of those skilled in the art of the present technique.Finally illustrate, the above is real
Example is applied to be merely illustrative of the technical solution of the present invention and unrestricted, although having been carried out specifically to the present invention with reference to preferred embodiment
It is bright, it will be understood by those within the art that, technical scheme can be modified or equivalent substitution, and
The objective and scope of technical solution of the present invention are not departed from, it all should cover among scope of the presently claimed invention.
Claims (8)
1. a kind of automatic compensation type high-pressure rotary joint, it is characterized in that：The rotary body being connected including housing and with housing into rotation, institute
The upper end for stating rotary body is sheathed in housing, lower end passes the setting of housing lower end, and the lateral wall of rotary body and case inside wall
Do not contact, be provided with an end cap on the top of housing, the end cap is connected with housing by bolt, the lower surface of the end cap and rotation
The upper surface of swivel is not contacted, and several positioning holes are offered in the upper surface surrounding of end cap along the axial direction of end cap, described
It is provided between rotary body and housing and is used to carry the thrust bearing of axial force suffered by rotary body and for carrying footpath suffered by rotary body
To the spring bearing of power, an end cap high-pressure oil duct is provided with end cap along the axial direction of end cap, in end cap high-pressure oil duct
Side roof part is provided with a closure end cap high-pressure oil duct and the screw plug on fixed spring top, and it is high with end cap that one is offered in the side of end cap
The oil inlet that force feed road is connected, being provided with one in the inside bottom of end cap high-pressure oil duct can not relative end cap radial rotary but energy
The static seal moved in the axial direction relative to end cap, the bottom of static seal is stretched out end cap high-pressure oil duct bottom and set, in static seal
A static seal endoporus for running through static seal upper and lower end face is inside provided with, a rotation is provided with a rotating body along the axial direction of rotary body
Body high-pressure oil duct, an oil-out being connected with the rotary body high-pressure oil duct is provided with the bottom of rotary body, in rotary body height
The inside top in force feed road be provided with one can not rotate against body radial rotary but can rotate against that body moves in the axial direction it is dynamic
Sealing, the top of dynamic sealing are stretched out rotary body high-pressure oil duct top and set, and run through dynamic sealing upper and lower side provided with one in dynamic sealing
The dynamic sealing endoporus in face, a jacking mechanism, the lower surface of the static seal are provided with the end cap high-pressure oil duct above static seal
Upper surface with dynamic sealing under the top pressure of jacking mechanism is affixed, and the centre of the jacking mechanism is communicated with end cap high-pressure oil duct
And the oil-through-hole of static seal endoporus；
Closing is provided with an oil seal seat, in oil seal seat into a draining chamber in draining intracavitary between the end cap, housing and rotary body
Equipped with rotary oil seal, epipharynx and the rotary body periphery of rotary oil seal coordinate, outer ring and oil seal seat inner hole, in end cap opposite side
Provided with a drain tap, the draining chamber is connected by a draining road with drain tap, and an annular groove is provided with the periphery of oil seal seat,
An oil seal seat sealing ring is provided with annular groove, the oil seal seat sealing ring is squeezed between housing and oil seal seat；
An annular compensating tank is provided with the static seal lower surface of static seal endoporus periphery, in the quiet of annular compensating tank periphery
Sealing lower surface is provided with a pressure release groove, and the static seal lower surface of pressure release slot perimeter is static seal seal face, quiet close
The surrounding of envelope seal face offers the drain pan of several connection pressure release grooves and draining chambers, the static seal seal face with
The upper surface of dynamic sealing is brought into close contact.
2. automatic compensation type high-pressure rotary joint according to claim 1, it is characterized in that：The jacking mechanism is included along quiet
A spring of the axial direction of sealing in end cap high-pressure oil duct above static seal, screw plug is fixed on the top of the spring
On, bottom is fixed on the middle part being located in end cap high-pressure oil duct and is provided with the spring base of oil-through-hole, and spring base lower surface abuts
The oil-through-hole of a connection end cap high-pressure oil duct and static seal endoporus is formed in the upper surface of static seal, among the spring.
3. automatic compensation type high-pressure rotary joint according to claim 1, it is characterized in that：The periphery and end of the static seal
By a static seal sealing ring and a static seal retaining ring sealing between lid high-pressure oil duct inwall, the periphery of the dynamic sealing and rotation
Pass through a dynamic sealing sealing ring and a dynamic sealing retaining ring sealing between body high-pressure oil duct inwall.
4. automatic compensation type high-pressure rotary joint according to claim 1, it is characterized in that：The spring bearing includes first
Spring bearing and the second spring bearing, two spring bearings are respectively arranged on the both sides of thrust bearing, the seat ring of the thrust bearing with
The endoporus of housing is engaged, blowout patche and the rotation mates, the outer ring of the spring bearing is engaged with the endoporus of housing,
Inner ring is engaged with rotary body periphery.
5. automatic compensation type high-pressure rotary joint according to claim 1, it is characterized in that：On the lower surface of end cap axially
A static seal bearing pin is inserted with, the bottom side that end cap high-pressure oil duct is stretched out in static seal is engaged provided with one with static seal bearing pin
Static seal bearing pin slot, the bottom of the static seal bearing pin is inserted in static seal bearing pin slot；In the upper surface of rotary body
Upper axial direction is inserted with a dynamic sealing bearing pin, and the top side that rotary body high-pressure oil duct is stretched out in dynamic sealing is provided with one and dynamic sealing pin
The dynamic sealing bearing pin slot that axle is engaged, the bottom of the dynamic sealing bearing pin are inserted in dynamic sealing bearing pin slot.
6. automatic compensation type high-pressure rotary joint according to claim 1, it is characterized in that：The side of housing be provided with one with
The oil filler grease-added to thrust bearing and spring bearing that enclosure interior is connected.
7. automatic compensation type high-pressure rotary joint according to claim 3, it is characterized in that：The periphery of static seal from upper and
Under be machined with the incremental limited step of static seal first of external diameter and the limited step of static seal second, the limited step of static seal second is stretched
Go out the setting of end cap high-pressure oil duct, the static seal back-up ring is supported by the limited step of static seal first, the lower end of static seal sealing ring
Face and the upper surface of static seal back-up ring are affixed；There is the incremental dynamic sealing of external diameter first to limit in the periphery bottom-up processing of dynamic sealing
Position step and the limited step of dynamic sealing second, the limited step of dynamic sealing second stretch out rotary body high-pressure oil duct and set, described dynamic close
Block circle is supported by the limited step of dynamic sealing first, and the lower surface and the upper surface of dynamic sealing back-up ring of dynamic sealing sealing ring are affixed.
8. automatic compensation type high-pressure rotary joint according to claim 4, it is characterized in that：On the periphery top of rotary body certainly
The incremental limited step of rotary body first of external diameter and the limited step of rotary body second are machined with above, in the endoporus bottom of housing
Top-down processing has the limited step of housing first and the limited step of housing second that internal diameter successively decreases, the inner ring of the first spring bearing
Supported by the limited step of rotary body second, the outer ring of the second spring bearing is supported by the limited step of housing second, the thrust axis
The seat ring held is supported by the limited step of housing first, and blowout patche is spacing by the lower surface of the limited step of rotary body second.
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| CN201610510884.4A CN105909897B (en) | 2016-06-30 | 2016-06-30 | A kind of automatic compensation type high-pressure rotary joint |
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| CN201610510884.4A CN105909897B (en) | 2016-06-30 | 2016-06-30 | A kind of automatic compensation type high-pressure rotary joint |
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| CN105909897B true CN105909897B (en) | 2017-11-21 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102017102842A1 (en) * | 2017-02-13 | 2018-08-16 | Otto Egelhof Gmbh & Co. Kg | Shaft passage and valve with such a shaft passage and method for producing a shaft passage |
| CN107938576B (en) * | 2017-12-08 | 2023-11-03 | 芜湖市中亚汽车制动元件有限公司 | High-pressure angular rotation spray head |
| CN108980491B (en) * | 2018-09-20 | 2020-04-14 | 杭州优能特旋转接头制造厂 | Damping formula rotary joint structure |
| CN109973741A (en) * | 2019-04-28 | 2019-07-05 | 南京大地水刀股份有限公司 | A kind of ultra-high pressure high flow rotary joint |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201007403Y (en) * | 2007-01-23 | 2008-01-16 | 浙江柏润液压有限公司 | Single tube rotary joint for cooling |
| CN202546075U (en) * | 2011-12-26 | 2012-11-21 | 杨基东 | Improved structure of swivel joint |
| CN202612927U (en) * | 2012-06-12 | 2012-12-19 | 福建省闽旋科技股份有限公司 | High-speed rotating joint with multiple small springs |
| CN203671089U (en) * | 2014-01-08 | 2014-06-25 | 杨才德 | Rotation connector |
| CN104279385A (en) * | 2014-08-13 | 2015-01-14 | 杭州优能特旋转接头制造厂 | Rotating joint with high sealing property |
| CN204628879U (en) * | 2015-05-27 | 2015-09-09 | 董耀峰 | A kind of high temperature high voltage resistant self-lubricating swivel joint |
| CN205745773U (en) * | 2016-06-30 | 2016-11-30 | 刘延俊 | A kind of automatic compensation type high-pressure rotary joint |
-
2016
- 2016-06-30 CN CN201610510884.4A patent/CN105909897B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201007403Y (en) * | 2007-01-23 | 2008-01-16 | 浙江柏润液压有限公司 | Single tube rotary joint for cooling |
| CN202546075U (en) * | 2011-12-26 | 2012-11-21 | 杨基东 | Improved structure of swivel joint |
| CN202612927U (en) * | 2012-06-12 | 2012-12-19 | 福建省闽旋科技股份有限公司 | High-speed rotating joint with multiple small springs |
| CN203671089U (en) * | 2014-01-08 | 2014-06-25 | 杨才德 | Rotation connector |
| CN104279385A (en) * | 2014-08-13 | 2015-01-14 | 杭州优能特旋转接头制造厂 | Rotating joint with high sealing property |
| CN204628879U (en) * | 2015-05-27 | 2015-09-09 | 董耀峰 | A kind of high temperature high voltage resistant self-lubricating swivel joint |
| CN205745773U (en) * | 2016-06-30 | 2016-11-30 | 刘延俊 | A kind of automatic compensation type high-pressure rotary joint |
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| CN105909897A (en) | 2016-08-31 |
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