CN107435628A - Location sealing component and apply its tumbler, rotation system and fluid machinery - Google Patents
Location sealing component and apply its tumbler, rotation system and fluid machinery Download PDFInfo
- Publication number
- CN107435628A CN107435628A CN201610354113.0A CN201610354113A CN107435628A CN 107435628 A CN107435628 A CN 107435628A CN 201610354113 A CN201610354113 A CN 201610354113A CN 107435628 A CN107435628 A CN 107435628A
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- Prior art keywords
- tumbler
- work chamber
- chamber
- rolling piston
- piston wheel
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
- F04C15/0023—Axial sealings for working fluid
- F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
- F02F11/007—Arrangements of sealings in combustion engines involving rotary applications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/005—Axial sealings for working fluid
- F04C27/006—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type pumps, e.g. gear pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Reciprocating Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Hydraulic Motors (AREA)
Abstract
The invention provides a kind of location sealing component and apply its tumbler, rotation system and fluid machinery.In tumbler, the present invention organically combines keeper and seal, form the structure of similar thrust ball bearing, utilize the positioning for positioning spin and realizing rotating mechanism in work chamber, the side for realizing rotating mechanism using the retainer for positioning spin seals, so as to simplify the mechanical structure of tumbler, cost is reduced.In addition, in the present invention, lateral pressure chamber is set between rolling piston wheel side and location sealing component, make location sealing compressing parts work chamber side using pressure caused by the lateral pressure source of lateral pressure intracavitary, the side sealing of rolling piston wheel is realized, in this case, rolling piston wheel need not be with work chamber's contacts side surfaces of the left and right sides, but floated between work chamber two sides, it is achieved thereby that the reliable seal-moving in zero clearance that friction minimizes.
Description
Technical field
The present invention relates to fluid machinery technical field, more particularly to a kind of location sealing component and the rotation dress using it
Put, rotation system and fluid machinery.
Background technology
Fluid machinery is a kind of energy conversion device that will mutually be changed between fluid pressure energy and mechanical energy, typical case
As：Fluid motor, compressor, pump, engine etc..Eccentric rotor structure is a kind of rather conventional knot of field of fluid machinery
Structure, have the advantages that it is simple in construction, operate steadily.
Present applicant have submitted a patent application (application number on March 15th, 2015：
201510134609.2).In this part of patent application, a kind of eccentric rotor structure using secondary tumbler is applicant provided
Dynamically balanced rotation system is carried out to main tumbler as balance counterweight.Fig. 1 is refer to, the rotation system includes：Cylinder body
Inner chamber, it is separated into three separate columnar chambers：Left chamber, main chamber and right chamber room；Main shaft 200, wherein
Mandrel line overlaps with the central axis of inner chamber, sequentially passes through left chamber, main chamber and right chamber room；Main rotating mechanism 610, turn left to move
Mechanism 620 and right rotating mechanism 630, respectively in corresponding chamber, include：Eccentric rotor component, it is sheathed on main shaft position
In the part of place chamber, by rotate in the chamber to be formed axially extending crescent annular seal space (C, c1,
c2)；Wherein, bias of the eccentric rotor component to main rotating mechanism in eccentric rotor component and right rotating mechanism in left rotating mechanism
Produced eccentric force is balanced counterweight to rotor assembly in the process of running.
In the rotation system shown in Fig. 1, main chamber and main tumbler is formed with corresponding main rotating mechanism 610, it is left
Chamber forms left tumbler with corresponding left rotating mechanism 620, and right chamber room is turned right dynamic with the corresponding right composition of rotating mechanism 630
Device, i.e. the present embodiment rotation system are actually comprising three tumblers for sharing same root main shaft.And main tumbler is
The secondary output equipment of the main output equipment of rotation system, left tumbler and right tumbler as auxiliary.
For the rotation system shown in Fig. 1, side sealing is the key factor for influenceing whole rotation system reliability of service life
One of, in the outside of left (right side) chamber, eccentric rotor component is in contact the part of friction with outer side seal end cap, is provided with ring-type
Abrasion-proof backing block (522,521,531,532).The contact plane of the abrasion-proof backing block and eccentric rotor carries out mirror-finishing smooth add
Work, reduce friction and sealed with improving.Also, O-shaped O-ring seal is provided between abrasion-proof backing block and the end cover of radial outside
(523,533,534,535), the O-shaped O-ring seal can effectively ensure the sealing in chamber.
However, above-mentioned sealing structure and detent mechanism are separately designed and assembled, complicated, assembling is relatively difficult.In addition,
Above-mentioned encapsulation scheme is very high to the requirement on machining accuracy of abrasion-proof backing block.If abrasion-proof backing block is excessively thin, the mistake of sealing can be caused
Effect, if abrasion-proof backing block is blocked up, pressure that can be too big to rolling piston wheel, its friction is caused to increase, so as to influence whole turn
The operating efficiency of dynamic system.
The content of the invention
(1) technical problems to be solved
In view of above-mentioned technical problem, tumbler, rotation the invention provides a kind of location sealing component and using it
System and fluid machinery, to simplify mechanical realization, improve the operating efficiency of fluid machinery.
(2) technical scheme
A kind of according to an aspect of the invention, there is provided location sealing component.The location sealing component includes：It is N number of fixed
Position spin 927；And sealing retainer 926, in double-layer circular structure, including：Internal ring portion 926a and outer portion 926b；Wherein,
Outer portion is radially oriented outside and extended, and forms outer extensions 926b ', is formed between the outer extensions 926b ' and internal ring portion 926a
3rd ledge structure；M positioning hole is along the circumferential direction uniformly arranged on the outer extensions, the interior configuration one or more per a positioning hole
Individual positioning spin, wherein, M >=3.
According to another aspect of the present invention, a kind of tumbler is additionally provided.The tumbler includes：Work chamber；
Main shaft 200, its center axis overlap with the central axis of work chamber；Rotating mechanism 610, it is sheathed on main shaft and is located at work chamber
Part, to form axially extending seal operation space by being rotated in work chamber；And side location sealing
Mechanism 900, including：One or two above-mentioned location sealing component, it is installed on rotating mechanism side and work chamber's corresponding side
Between face, for realizing the sealing of rotating mechanism respective side.
According to a further aspect of the invention, a kind of tumbler is additionally provided.The tumbler includes：Work chamber；
Main shaft 200, its center axis overlap with the central axis of work chamber；Rotating mechanism 610, it is sheathed on main shaft and is located at work chamber
Part, to form axially extending seal operation space by being rotated in work chamber；And side location sealing
Mechanism 900, including：One or two location sealing component, the location sealing component are installed on side and the work of rotating mechanism
Between chamber respective side, for realizing the sealing of rotating mechanism respective side.Wherein, the location sealing component includes：Side
Locating ring 911, overall is in double-layer circular structure, including：Internal ring portion 911a and outer portion 911b, outer portion 911b are radially oriented outer
Side extends, and forms outer extensions 911b ', and second step structure is formed between the outer extensions 911b ' and internal ring portion 911a；And
Floating piston ring 912, it is installed between rotating mechanism 610 and the outer extensions 911b ' of side locating ring.
According to a further aspect of the invention, a kind of rotation system is additionally provided.The rotation system includes：At least three is inclined
The tumbler of heart rotor structure, i.e., one main tumbler, at least one left tumbler and at least one right tumbler；This is at least
Three tumblers are above-mentioned tumbler.Wherein, at least three tumbler share same root main shaft, work chamber that
This separates and worked independently.
According to a further aspect of the invention, a kind of fluid motor is additionally provided.The fluid motor includes：Above-mentioned rotation
Device or rotation system.In the fluid motor, the high-pressure fluid that fluid inlet enters enters tumbler, promotes rolling piston wheel
Rotate, caused moment of torsion is delivered to the outside of work chamber by main shaft, the low-pressure fluid after doing work passes through fluid issuing
Discharge.
According to a further aspect of the invention, a kind of pump is additionally provided.The pump includes：Above-mentioned tumbler or rotation system
System.In the pump, main shaft is transferred a torque in work chamber；Under the drive of main shaft, rolling piston wheel along work chamber forward
Roll, the fluid entered by fluid inlet is pumped into work chamber, and discharged fluid by fluid issuing.
According to a further aspect of the invention, a kind of compressor is additionally provided.The compressor includes：Above-mentioned tumbler
Or rotation system.In the compressor, main shaft is transferred a torque in work chamber, and rolling piston wheel rolls forward along work chamber
It is dynamic, compressed media is compressed, the medium after compression is discharged by fluid issuing.
According to a further aspect of the invention, a kind of engine is additionally provided.The engine includes：Above-mentioned tumbler
Or rotation system.In the engine, the gases at high pressure entered by combustion chamber promote rolling piston wheel along work chamber's rolls forward,
Caused moment of torsion is delivered to the outside of work chamber by main shaft, the low-pressure gas after doing work is discharged by fluid issuing.
(3) beneficial effect
It can be seen from the above technical proposal that location sealing component of the present invention and apply its tumbler, rotation system
One of them is at least had the advantages that with fluid machinery：
(1) a kind of different conventional, novel location sealing solutions are provided；
(2) keeper and seal are organically combined, forms the structure of similar thrust ball bearing, to realize positioning
With two kinds of functions of sealing, there is the advantages of simple in construction and dependable performance；
(3) using the positioning for positioning spin and realizing rotating mechanism in work chamber, sliding friction is converted into rolling friction,
Frictional dissipation is reduced, improves the operating efficiency of tumbler, while improves positioning precision；
(4) side for realizing rotating mechanism using the retainer for positioning spin seals, it is not necessary to seal member is additionally set again,
The mechanical structure of part is simplified, reduces cost；
(5) lateral pressure chamber is set between rolling piston wheel side and location sealing component, utilizes the side of lateral pressure intracavitary
Pressure caused by pressure source makes location sealing compressing parts work chamber side, the side sealing of rolling piston wheel is realized, at this
In the case of kind, rolling piston wheel need not be with work chamber's contacts side surfaces of the left and right sides, but between work chamber two sides
Float, it is achieved thereby that the reliable seal-moving in zero clearance that friction minimizes；
(6) through flow hole is opened up on rolling piston wheel, the very small amount shunting of the high-pressure fluid in cylinder body is imported lateral pressure
Chamber, using the high-pressure fluid as elastic component, the seal member for making lateral pressure intracavitary using its caused pressure compresses chamber-side
Abrasion-proof backing block, realize rolling piston wheel side sealing；
(7) elastic component such as compression spring or O-ring is set in lateral pressure intracavitary, the elastic component makes on the inside of rolling piston wheel
Seal member compresses the abrasion-proof backing block of chamber-side, in this case, even if the through flow hole on rolling piston wheel is blocked, still
The reliable sealing of rolling piston wheel side can so be realized.
Brief description of the drawings
Fig. 1 is the vertical section schematic diagram of prior art three-port type rotation system；
Fig. 2 is the structural representation according to first embodiment of the invention tumbler；
Fig. 3 is the structural representation according to second embodiment of the invention tumbler；
Fig. 4 A and Fig. 4 B are respectively solid of the right location sealing component under two different visual angles in tumbler shown in Fig. 3
Figure；
Fig. 5 is steel ball in right location sealing component in tumbler shown in Fig. 3 on the abrasion-proof backing block of main chamber's right flank
The schematic diagram of rolling track；
Fig. 6 is the schematic diagram of three kinds of typical set-up modes of positioning hole and steel ball in the present invention；
Fig. 7 is the schematic diagram for setting steel ball in the present invention in circular arc positioning hole.
【Main element symbol description】
200- main shafts
521st, 522,531,532- abrasion-proof backing blocks；523rd, 533,534,535-O type O-ring seals；
The main rotating mechanisms of 610-；620 left rotating mechanisms；630 right rotating mechanisms；
611- excentric sleeves；
The left location divisions of 611a-；The right keepers of 611b-；
612- spring bearings；
613- rolling piston wheels；
613a- inner cylinder portions；Cylinder portion in 613b-；
613c- outer cylindrical portions；613c ', 613c "-through flow hole；
900- sides location sealing mechanism；
The left location sealing components of 910-；
911- left surface locating rings；The left floating piston rings of 912-；913- left pressure chambers；
911a- internal ring portions；911b- outer portions；
The outer extensions of 911b '-outer portion；
The right location sealing components of 920-；
921- right flank locating rings；922 right floating piston rings；923- right atrial pressure chambers；
921a- internal ring portions；921b- outer portions；
The interior extension of 921b "-outer portion；
926- seals retainer；
926a- internal ring portions；926b- outer portions；
The outer extensions of 926b '-outer portion；The interior extension of 926b "-outer portion；
927- steel balls；
Crescent annular seal space corresponding to main rotating mechanism in C- rotation systems；
Crescent annular seal space corresponding to c1, c2- rotation system middle left and right rotating mechanism.
Embodiment
The thinking of the present invention solved the problems, such as is：Positioning is clearly separated with the functional objective sealed, with different machinery
Key element goes to complete different tasks；Also, different element organic assemblings is got up as far as possible, supports mutually, has gone jointly
Into task.
Under the guidance of above-mentioned thinking, the present invention organically combines keeper and seal, forms similar thrust
The structure of ball bearing, using the positioning for positioning spin and realizing rotating mechanism in work chamber, utilize the retainer for positioning spin real
The side sealing of existing rotating mechanism.Meanwhile the present invention sets lateral pressure between rolling piston wheel side and location sealing component
Chamber, the abrasion-proof backing block of location sealing compressing parts chamber-side is made using pressure caused by lateral pressure intracavitary lateral pressure source, realized
The side sealing of rolling piston wheel.
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with specific embodiment, and reference
Accompanying drawing, the present invention is described in more detail.
It should be noted that for sake of clarity, many places hereinafter employ the statement side of " radial direction " and " axial direction "
Formula.As without especially indicating, " radial direction " and " axial direction " herein is for work chamber, i.e., along work chamber's main shaft
Direction or the direction parallel with the direction are " radial direction ", are perpendicular to work chamber's major axes orientation or the direction parallel with the direction
" axial direction ".
First, tumbler first embodiment
The present embodiment tumbler is similar with the tumbler in rotation system shown in Fig. 1, and difference is to employ spy
The Side sealing structures not designed.Hereinafter illustrated by taking main tumbler as an example.
The present embodiment tumbler includes：Main chamber, main shaft 200, main rotating mechanism 610 and side location sealing mechanism
900.Wherein, the central axis of main shaft 200 overlaps with the central axis of main chamber.Main rotating mechanism 610 includes：Eccentric rotor group
Part, the part that main shaft is located at main chamber is sheathed on, by rotating to form axially extending crescent in the chamber
Annular seal space C；Interrupter, its front end mutually seal with eccentric rotor component, so as to which axially extending crescent annular seal space C be separated
For two separate variable volume chambers, two variable volume chamber respectively can with the external world by fluid intake and fluid issuing
Control connection.
Eccentric rotor component includes：Excentric sleeve 611, it is arranged and is fixed on the part that main shaft is located at main chamber, its center
The central axis of axis and main shaft is parallel to each other and the pre-determined distance that staggers；Rolling piston wheel 613, is sheathed on excentric sleeve, its
Central axis overlaps with the central axis of excentric sleeve；Spring bearing 612, is symmetrically sheathed on eccentric shaft, and its inside race is consolidated
Due to excentric sleeve, its outer collar is fixed on rolling piston wheel, with both rotations of isolation.Wherein, rolling piston wheel 613 compresses
Rolled in the inner cylinder face of work chamber side, and along the inner cylinder face, make inner cylinder face and the rolling piston wheel of work chamber
External cylindrical surface between form axially extending crescent annular seal space C.
In the present embodiment, spring bearing 612 is symmetrical relative to main chamber, and its width is less than the width of main chamber
Degree.
There is the location structure of spring bearing 612 in the radial outside of excentric sleeve 611.It refer to Fig. 2, excentric sleeve
611 left side extends to form left location division 611a upward.Right keeper 611b is fixed with the right side of excentric sleeve.Spring bearing
Bottom be positioned at by sandwiched between left location division 611a and right keeper 611b.
Rolling piston wheel 613 is overall to be cylindrical in shape structure, and it is diametrically divided into three that width is stepped up from inside to outside
Point.Wherein, most the inner cylinder portion 613a left and right sides of inner side and the left and right sides flush of spring bearing.Outermost outer cylindrical portion
The 613c left and right sides is leaned on the abrasion-proof backing block 521 in main chamber's inner cylinder left side of face face and the abrasion-proof backing block 531 of right flank respectively
Closely but do not contact, gap between the two is Δ 1.It is middle cylinder portion 613b between inner cylinder portion 613a and outer cylindrical portion 613c, cylinder in this
Portion 613b thickness is more than inner cylinder portion 613a and outer cylindrical portion 613c thickness.Wherein, the inner cylinder portion 613a of rolling piston wheel is with
First step structure is formed between cylinder portion 613b.
It should be noted that in order to express easily, tubular structure is divided into inner cylinder portion, middle cylinder portion and outer cylindrical portion herein, but
In fact, the three parts can be integral.In this case, it is three separated that inner cylinder portion, middle cylinder portion and outer cylindrical portion, which are not,
Part.
The material of abrasion-proof backing block (521,531), domestic wear-resisting steel plate NM400, NM450 and harder NM500 in can using；
Other wear-resisting steel such as Sweden production HARDOX400, HARDOX450, HARDOX500 and harder HARDOX600 can be used.In height
The material of the lower work of temperature can use resistant to elevated temperatures steel, or even industrial ceramics and hard alloy.
At least two through flow hole is uniformly arranged in a circumferential direction respectively on outer cylindrical portion 613c axial left side and right side
(613c ' and 613c "), the diameter d of the through flow hole (613c ' and 613c ") is between 0.5mm~2mm.
Fig. 2 is refer to, side location sealing mechanism 900 includes：Left location sealing component 910 and right location sealing component
920.Left location sealing component 910 further comprises：Left surface locating ring 911 and left floating piston ring 912.Right location sealing group
Part 920 further comprises：Right flank locating ring 921 and right floating piston ring 922.
For left location sealing component 910 and right location sealing component 920, both structures are substantially the same, below mainly
It is described in detail by taking left location sealing component 910 as an example.
It is in double-layer circular structure that left surface locating ring 911 is overall, is embedded at the resistance to of rolling piston wheel and main chamber left surface
Between mill lining plate, to realize the positioning of rolling piston wheel.The left surface locating ring 911 forms two in direction axially from inside to outside
Partly-internal ring portion 911a and outer portion 911b.Left side and the rolling piston wheel of spring bearing are connected on the right side of internal ring portion 911a
Inner cylinder portion 613a, outer portion 911b is connected to the abrasion-proof backing block 521 in main chamber's inner cylinder left side of face face.
Relative to internal ring portion 911a, outer portion 911b is radially oriented outside and extended, and forms outer extensions 911b ', the extension
Second step structure is formed between extending portion 911b ' and internal ring portion 911a.As described above, the inner cylinder portion 613a of rolling piston wheel is with
First step structure is formed between cylinder portion 613b.The second step structure and the first step structure are mutually clamped, and realize a left side
Positioning of the side locating ring to spring bearing and rolling piston wheel.
Formed between the outer extensions 911b ' of the outer portion of left surface locating ring and the outer cylindrical portion 613c of rolling piston wheel left
Accommodation space.Left floating piston ring 912 is arranged in left accommodation space.
For left floating piston ring 912, its outer cylindrical portion and left surface diametrically respectively with rolling piston wheel is determined
Outer extensions 911b ' the sealings of the outer portion of position ring.And in the axial direction, the thickness D1 of left floating piston ring 912 is more than outer cylindrical portion
The distance between 613c left side and the left surface in main chamber's inner cylinder face Δ 1, so as to by outer cylindrical portion 613c left side with
Gap between the left surface in main chamber's inner cylinder face seals.Also, thickness D1 be less than rolling piston wheel middle cylinder portion 613b with
The distance D in main chamber's inner cylinder left side of face face, so as between left floating piston ring 912 and the middle cylinder portion 613b of rolling piston wheel
Form the left pressure chamber 913 of ring-type.The left pressure chamber 913 is by being opened in the outer cylindrical portion 613c of rolling piston wheel axial direction
The through flow hole 613c ' in left side is connected with crescent annular seal space.Generally, the size of Δ 1 has direct pass with machining accuracy
System, between 5 μm~50 μm, the axial dimension of lateral pressure chamber is between 0.2mm~1.0mm.
The present embodiment tumbler is in operation process, and a small amount of high-pressure fluid in crescent annular seal space passes through through flow hole
613c ' is imported into left pressure chamber 913, and a small amount of shunting makes left floating piston ring 912 be close to and the wear-resisting lining on the left of main chamber
Plate 521, it is achieved thereby that the left surface sealing of rolling piston wheel.
As described above, crescent annular seal space C, which is isolated mechanism, is divided into two separate variable volume chambers.For statement
For the sake of convenient, two variable volume chamber is referred to as：High pressure chest and low pressure chamber.Although the position of through flow hole itself is constant, its
With the continuous rolls forward of rolling piston wheel, so as to can periodically be in high pressure chest and low pressure chamber.
By taking left location sealing component as an example, 2 streams are uniformly offered on the circumference on the left of the outer cylindrical portion of rolling piston wheel
Through hole.Via it is demonstrated experimentally that no matter 2 openings are to be located at high pressure chest simultaneously, an opening be located at high pressure chest another
Opening is located at low pressure chamber, or 2 openings be located at low pressure chamber simultaneously, pressure chamber injection to the left during due to positioned at high pressure chest
The speed of fluid is far longer than the speed that left pressure chamber liquid flows out during in low pressure chamber, therefore, in left pressure intracavitary
Fluid can remain higher pressure, so that left floating piston ring 912 is close to and the abrasion-proof backing block 521 on the left of main chamber
It will not separate.
Generally, 2~10 through flow holes along the circumferential direction can uniformly be opened up in the outer cylindrical portion of rolling piston wheel.Such as
If fruit through flow hole is excessive, may have a negative impact to the intensity of the outer cylindrical portion of rolling piston wheel.And if through flow hole
If having one, then injecting the fluid of left pressure chamber will not flow, and can produce rotten, be unfavorable in the case of long-time
The long time running of tumbler.
Further, it is to be appreciated that corresponding to the consideration based on balance, left location sealing component and right location sealing component
The number of perforations that circulates is identical, positional symmetry.
On right location sealing component 920, itself and left location sealing component almost symmetry.It should be noted that：On right side
In face locating ring 921, relative to internal ring portion 921a, outer portion 921b is radially oriented the axial direction that inner side extends to right keeper 611b
Outside, the extension 921b " in the position of excentric sleeve 611, formation.Wherein, interior extension 921b " and excentric sleeve 611
Distance between 20 μm~100 μm.
In the present embodiment, spring bearing needs to be operated in oil lubrication environment.Interior extension 921b is " between excentric sleeve
Only separated by the distance of very little, the lubricating oil of spring bearing can be prevented to be lost in.
Equally, for right floating piston ring 922, its thickness D1 is less than in the middle cylinder portion and main chamber of rolling piston wheel
The distance D of barrel surface right flank, so as to form ring-type between right floating piston ring 922 and the middle cylinder portion 613b of rolling piston wheel
Right atrial pressure chamber 923, the right atrial pressure chamber 923 pass through be opened in rolling piston wheel outer cylindrical portion axially right side through flow hole
613c " is connected with crescent annular seal space.
The present embodiment tumbler is in operation process, and a small amount of high-pressure fluid in crescent annular seal space passes through through flow hole
613c " is imported into right atrial pressure chamber 923, and a small amount of shunting makes right floating piston ring 922 be close to and the wear-resisting lining on the right side of main chamber
Plate 531, it is achieved thereby that the right flank sealing of rolling piston wheel.
Left surface locating ring 911 and right flank locating ring 921 are arranged in the left and right sides of rolling piston wheel 613, will be rolled
The abrasion-proof backing block of the both sides of piston wheel 613 and the left/right side of main chamber (521,531) is separated and positioned, and ensures metal zero
Do not contacted between part.Also, kept between side locating ring (911,921) and the abrasion-proof backing block of corresponding side (521,531)
More than 0.01mm gaps, prevent friction from damaging.
Wherein, the material of side locating ring (911,921) is non-ferric, such as copper or engineering plastics, preferably polytetrafluoroethyl-ne
Alkene, its hardness is high, frictional force is small, can be with flexible rotating, while will not scratch abrasion-proof backing block.
Equally, the material of left floating piston ring 912 and right floating piston ring 922 is non-ferric, excellent such as copper or engineering plastics
Elect polytetrafluoroethylene (PTFE) as, its is in light weight, intensity is high, frictional force is small, it is possible to achieve the reliable sealing of rolling piston wheel side.
The present embodiment tumbler is in operation process, the corresponding side of the outermost outer cylindrical portion of rolling piston wheel and main chamber
Face is close but is not directly contacted with, and a small amount of high-pressure fluid in crescent annular seal space is imported into lateral pressure chamber by through flow hole, should
A small amount of shunting makes floating piston ring be close to the respective side with main chamber, it is achieved thereby that the side sealing of rolling piston wheel, from
And realize rolling piston wheel and floated between the abrasion-proof backing block of both sides, and rolled along cylinder body inner cylinder face, realize friction most
The reliable seal-moving in zero clearance of smallization.
It should be noted that the present embodiment illustrates by taking main tumbler 610 as an example, for rotation system shown in Fig. 1
In left tumbler 620 and by tumbler 630, or the only tumbler comprising chamber can apply this
The scheme of embodiment carries out side sealing.In addition, although the present embodiment is provided with determining at left and right sides of eccentric rotor component
Position seal assembly, but in fact, discounting for opposite side position with seal in the case of, can also be only in eccentric rotor component
Side set location sealing component, it can equally realize the present invention.
In the present embodiment, on inner chamber of cylinder block, main shaft, eccentric rotor component, interrupter etc., background technology is referred to
Patent application (the application number mentioned：201510134609.2) in related description.Due to its with the present invention innovation without
Close, here is omitted.
2nd, rotation system first embodiment
In a second embodiment of the present invention, a kind of rotation using tumbler described in first embodiment is additionally provided
System.
The present embodiment rotation system is similar with the rotation system shown in Fig. 1, includes the rotation dress of three eccentric rotor structures
Put, i.e., one main tumbler, a left tumbler and a right tumbler；Three tumblers are that tumbler first is implemented
Tumbler described in example.Three tumblers share same root main shaft, work chamber is spaced apart and worked independently, its
In, the eccentric rotor structure of left tumbler and right tumbler is balanced to the eccentric rotor structure of the main tumbler
Counterweight.
It will be apparent to those skilled in the art that although the present embodiment illustrates by taking 3 chambers as an example, the present invention is not
As limit.In other embodiments of the invention rotation system, inner chamber can be divided into 2N+1 chamber, and with corresponding bias
Rotor assembly forms 2N+1 tumbler, the i.e. both sides in main tumbler, respectively symmetrically sets N number of secondary tumbler,
The present invention can equally be realized.But, it is contemplated that the factor such as process complexity, the N are the positive integer more than or equal to 1, typically not
More than three.
In the present embodiment, on the location sealing component of side, mutually speaking on somebody's behalf for tumbler first embodiment is referred to
It is bright, no longer repeat herein.
3rd, tumbler second embodiment
For the tumbler of tumbler first embodiment, its key is the high-pressure fluid in crescent annular seal space
A small amount of be diverted through through flow hole and be imported into lateral pressure chamber.However, realize that such sealing is conditional, i.e. the flowing of fluid
Property will well.
When fluid viscosity ratio is larger, fluid is easily detected by thinner through flow hole, therefore lateral pressure chamber easily fails.
For example, in Oil production sites, because the viscosity of the fluid of oil is too big, mobility is bad, causes the difficulty of pipeline, this
Directly influence the construction of the compression pump of oil transportation, it has to be possible to run under conditions of so-called " viscous crude ".Rolling piston wheel
Side location sealing structure have to look for more reliable approach.In addition, at the time of tumbler just starts, it is not high
Fluid injection lateral pressure chamber is pressed, now side sealing is equally failure.
On the basis of first embodiment tumbler, the tumbler after a kind of improvement is present embodiments provided.This turn
The difference of dynamic device and first embodiment tumbler is：Side locating ring and floating piston cyclization are integrated, form one
The location sealing component of similar thrust ball bearing, the side sealing and positioning of eccentric rotor component are realized using it, also, are passed through
Lateral pressure chamber lacks pressure when increasing elastic component in lateral pressure intracavitary to solve the problems, such as " viscous crude " obstruction through flow hole and just start.
Equally, in the present embodiment, side location sealing structure 900 includes：Left location sealing component 910 and right location sealing
Component 920.Wherein, left location sealing component 910 and right location sealing component 920 are symmetrical, below for right location sealing
Component 920 is described in detail.
Fig. 3, Fig. 4 A and Fig. 4 B are refer to, the right location sealing component 920 includes：Seal retainer 926 and several steel
Ball 927.Wherein, the overall structure annular in shape of retainer 926, " convex " font of 90 ° of its vertical section rotate counterclockwise are sealed.
Equally, seal retainer 926 and form two layers-internal ring portion 926a and outer portion in direction axially from inside to outside
926b.Wherein, outer portion 926b is radially oriented outside and extended, and forms outer extensions 926b '；Extend towards inner side, prolong in formation
Extending portion 926b ".Wherein, outer extensions 926b ' and interior extension 926b " have corresponding function, will hereinafter carry out specifically
It is bright.
Wherein, the 3rd ledge structure is formed between internal ring portion 923a and the outer extensions of outer portion.Lived as described above, rolling
Fill in and first step structure is formed between the inner cylinder portion 613a taken turns and middle cylinder portion 613b.3rd ledge structure and the first step knot
Structure is mutually clamped, and realizes positioning of the left surface locating ring to spring bearing and rolling piston wheel.
As can be seen that the outer extensions 926b ' of the outer portion of sealing retainer lives equivalent to the floating in first embodiment
Plug ring.Fig. 3 is refer to, the outer extensions 926b ' of outer portion extends close to the position of the outer cylindrical portion of rolling piston wheel, also,
Outer extensions 926b ' thickness D2 is less than the wear-resisting of middle cylinder portion 613b and the main chamber's inner cylinder right side of face face of rolling piston wheel
The distance D of liner plate, so as to form the right atrial pressure of ring-type between outer extensions 926b ' and the middle cylinder portion 613b of rolling piston wheel
Chamber 923.The through flow hole 613c " and crescent moon on the right side of axial direction that right atrial pressure chamber 923 passes through the outer cylindrical portion for being opened in rolling piston wheel
Shape annular seal space is connected.
Equally, tumbler is in operation process, and being diverted through on a small quantity for the high-pressure fluid in crescent annular seal space is through-flow
Hole is imported into lateral pressure intracavitary, and a small amount of shunting makes sealing retainer be close to the respective side with main chamber, it is achieved thereby that rolling
The side sealing of piston wheel.Simultaneously as the outermost outer cylindrical portion of rolling piston wheel and the respective side of main chamber is wear-resisting
Liner plate is close but is not directly contacted with, it is achieved thereby that rolling piston wheel floats between the abrasion-proof backing block of both sides, and along cylinder body
Inner cylinder face rolls, and realizes the reliable seal-moving in zero clearance that friction minimizes.
As described above, when under applying to viscous fluid scene, through flow hole is often blocked by viscous fluid, so as to cause
Lateral pressure intracavitary lacks pressure, it is impossible to sealing retainer is close to the respective side of main chamber, the failure for causing side to seal.
Meanwhile at the time of tumbler just starts, high-pressure fluid injection lateral pressure chamber, now side sealing are not equally to lose
Effect.
In order to solve the above problems, the side seal also includes：Elastic component.The elastic component in lateral pressure intracavitary vertically
Set, both sides press on the outside in the inner side of sealing retainer and the middle cylinder portion of rolling piston wheel respectively, are protected with providing sealing
Hold the pressure that frame is close to required for the respective side of main chamber.Wherein, the elastic component can be spring, disc spring or O-ring,
Its material can be rubber, plastics, metal etc..Using the O-ring of fluorubber material in the present embodiment.
It will be understood by those skilled in the art that the sufficiently large situation of lateral pressure of elastic component offer is set in lateral pressure intracavitary
Under, the outer cylindrical portion 613c of rolling piston wheel through flow hole can also omit.
It is similar with first embodiment tumbler, in the present embodiment, seal the interior extension 926b " of the outer portion of retainer
The position of excentric sleeve is extended close to, to prevent the destroyed hidden danger of caused by oil leakage oil lubrication environment.
Wherein, the distance of interior the extension 926b " and excentric sleeve are between 20 μm~100 μm.In addition, on interior extension
926b ", its thickness can be identical with outer extensions 926b ' thickness, can also be different.
It will be apparent to those skilled in the art that in the case where not considering spring bearing lubrication leakage, the interior extension
926b " can also be omitted.Now, the vertical section of retainer 926 is sealed by 90 ° " 7 " font of turning clockwise, and is no longer
The "convex" shaped that 90 ° of rotate counterclockwise.
Fig. 3 and Fig. 4 are refer to, the outer extensions 926b ' for sealing the outer portion of retainer is along the circumferential direction uniformly arranged M
Positioning hole, M are placed in corresponding positioning hole, and are positioned by the positioning hole respectively with the steel ball 927 that positioning hole matches.
The axially inner side of steel ball 927 presses on the middle cylinder portion 613b of rolling piston wheel；Its axially external right flank for pressing on main chamber
Abrasion-proof backing block on.Wherein, M >=3.
In the present embodiment, steel ball carries out accurate reliable positioning to rolling piston wheel, can carry out the rotation of high speed, high efficiency
Transhipment is dynamic.Associate the thrust ball bearing of mechanical field, in the present embodiment, kept by rolling piston wheel, wear-resisting steel diaphragm, sealing
Frame forms the structure of a similar thrust ball bearing with several steel balls, wherein, rolling piston wheel is considered as thrust ball bearing
Moving-coil, abrasion-proof backing block be considered as thrust ball bearing determine circle, sealing retainer equivalent to piston ring.In the structure shown here, by
Several steel balls realize the axially position of rolling piston wheel.It particularly to be noted that because the precision of steel ball is very high, because
This, in the case of steel ball axially position, the side position gap of rolling piston wheel can be made small.
Fig. 5 is steel ball in right location sealing component in tumbler shown in Fig. 3 on the abrasion-proof backing block of main chamber's right flank
The schematic diagram of rolling track.As shown in Figure 5, in the case that the offset of excentric sleeve is e in eccentric rotor component, steel ball exists
Rolling track width in abrasion-proof backing block plane is 2e.
Fig. 5 is continued referring to, rolling track of the rolling piston wheel side sealed rolling bearing in abrasion-proof backing block plane is said
Bright, the motion of steel ball is complicated due to the eccentric motion of moving-coil (rolling piston wheel).The motion of steel ball is by follower ring (rolling
Piston wheel) and dynamic sealing retainer drives around the eccentric motion of main shaft, steel ball on the one hand around main shaft revolution, on the one hand by
In eccentric motion and rotation.
Steel ball is stayed in equivalent to the rolling track on rolling piston wheel side runway around main shaft revolution motion, is to be lived with rolling
The positive round that plug wheel rotates central coaxial is linear.Rolling track on rolling piston wheel side runway, if made and common thrust
The contact area of arc-shaped raceway as ball bearing, sphere and raceway can increase, and directly enhance bearing capacity and reliable
Life-span.Rolling track of the side sealed rolling bearing steel ball in abrasion-proof backing block plane be width 2e annulus, steel ball with it is wear-resisting
Though the contact of liner plate plane is a contact, it is evenly distributed on plane of a loop.Rolling of the steel ball in abrasion-proof backing block plane
Dynamic process, the actually rolling microstoning to track width cuff surface metamorphic layer, finish greatly improves after rolling,
Up to mirror finish.Rolling microstoning of the steel ball to abrasion-proof backing block, finish greatly improves after not only rolling, and after rolling
Surface Machining hardening and crystal grain fine and closely wovenization, both contribute to improve contact strength and wearability.Therefore, the material of abrasion-proof backing block can
Make of bearing steel as not necessarily like standard available thrust ball bearing, and manufactured with lower-cost abrasion-resistant stee such as NM400 etc.
.
In the present embodiment, rolling track of the steel ball on rolling piston wheel side runway, only rotated with rolling piston wheel
One positive round of central coaxial is linear, seemed thin sometimes some.In Fig. 6 shown in (b), positioning hole and steel ball are distributed in close
Seal in two concentric circumferences of the outer extensions of retainer.In this case, steel ball is on rolling piston wheel side runway
Track is rolled, there are two positive round for rotating central coaxial with rolling piston wheel linear, it is clear that to directly enhance bearing capacity and can
By the life-span.In addition, as shown in (c) in Fig. 6, steel ball is distributed in straight strip hole, and steel ball is on rolling piston wheel side runway
It is bigger to roll footprint, toroidal contact surface can be formed, bearing capacity and Q-percentile life will further improve.
As shown in fig. 7, in another embodiment of the present invention, positioning hole is shaped form strip hole.The shaped form strip
The line at the first and last end in hole radially has component double-layer circular structure.3 steel balls are set in each arc-shaped hole.
For the location sealing structure shown in Fig. 7, because steel ball is by the cam of shaped form strip hole medial surface during rotation
As guiding force and spin centrifugal force comprehensive function, rolling footprint on the runway of piston star-wheel side more it is big evenly,
Bearing capacity and Q-percentile life are bigger.
It is also to be noted that in the present embodiment, the bottom surface for sealing the outer portion of retainer is not a plane, positioned at radially
One section (one section of remotely located hole) of inboard portion is recessed towards internal ring portion 926a, hereinafter referred to as recessed section.This recessed section
The area that sealing retainer contacts with abrasion-proof backing block is reduced, and then reduces friction between the two, can further be improved
Operational efficiency, while reduce the requirement for sealing retainer machining accuracy of knowing clearly.
Because sealing retainer does not bear the load of rolling piston wheel directly, therefore the requirement to rigidity is not too much high, can be with
Use the flexible material such as rubber, plastics or graphite etc. for being suitable for sealing.Wherein, the lubricity and sealing of polytetrafluoroethylene (PTFE)
All preferably, it is most suitable as sealing retainer.Under the high temperature conditions, sealing retainer can be used corrosion-resistant and lubricity compared with
Prepared by good graphite material, such as soak antimony metal graphite.
On steel ball, in addition to bearing steel, it can use the metal or non-metallic material by other with certain degree of hardness
The spin for expecting to make replaces, such as：Hard alloy, carborundum, silicon nitride, zirconia ceramic etc..
In addition, the present embodiment tumbler is gone back with first embodiment tumbler in the positioning method of spring bearing 612
It is slightly different.Fig. 2 is refer to, in first embodiment tumbler, spring bearing 612 is positioned at left location division 611a by sandwiched
Between right keeper 611b.And in the present embodiment tumbler, excentric sleeve is solid respectively in the left and right sides of spring bearing
Fixed left keeper 611a ' and right keeper 611b.The bottom of spring bearing 612 is positioned at left keeper 611a ' and the right side by sandwiched
Between keeper 611b.
The other structures of the present embodiment tumbler can refer to the explanation of first embodiment, be not described in detail herein.
4th, location sealing Assemblies Example
A kind of location sealing component as shown in Figure 4 A and 4 B shown in FIG. is present embodiments provided, it can apply to the such as the 3rd
In embodiment tumbler.
Fig. 4 A, Fig. 4 B are refer to, the location sealing component includes：Seal retainer 926 and several steel balls 927.Wherein,
Seal retainer 926 to be used to realize sealing, it is in integrally double-layer circular structure, and vertical section is in " convex " word of 90 ° of rotate counterclockwise
Type.
The outer extensions 926b ' for sealing the outer portion of retainer is along the circumferential direction uniformly arranged M positioning hole, M steel ball
927 are placed in the positioning hole, and are positioned by the positioning hole.On sealing the interior extension of retainer, it can have, also may be used
To omit.
In the present embodiment, M positioning hole is distributed on a circumference of outer extensions.And in other embodiments of the invention
In, M positioning hole can also be arranged at T circumference of the different radii of the outer extensions of the outer portion of the sealing retainer
On, it can equally realize the present invention.Generally, 2 ＜ T≤4.In figure 6 in the embodiment shown in (b), T=2.
In embodiment in the present embodiment and Fig. 6 shown in (b), positioning hole is circle, is matched with the shape of steel ball, each
Positioning hole sets a steel ball.And in other embodiments of the present invention, positioning hole can also be other shapes.Typically：
(1) as shown in (c) in Fig. 6, positioning hole can also be straight strip hole.The central axis of the straight strip hole is along double-deck ring
The radial direction of shape structure, and the length of the strip is more than the diameter of the positioning spin.It should be noted that, although in Fig. 6
(c) it is interior per strip hole always that a steel ball is set in the embodiment shown in, but in other embodiments of the present invention, it is every to grow always
The steel ball of 2 or 3 can also be set in bar hole, and its effect is more preferable compared with 1 locking ball effect；Also, considered based on balance,
The number of steel ball is preferably equal in each elongate holes.
(2) as shown in fig. 7, positioning hole can also be shaped form strip hole.The company at the first and last end of each shaped form strip hole
Line radially has component double-layer circular structure.It is be arranged in parallel along M shaped form strip hole on extension, Mei Yiyuan
3 steel balls are set in arcuation hole.In other embodiments of the present invention, 1 or 2 can also be set in each shaped form strip hole
Steel ball, but its effect not as set 3 steel balls it is good.
As described above, for the location sealing structure shown in Fig. 7, because steel ball is by shaped form strip hole during rotation
Guiding force as the cam of side and the comprehensive function of spin centrifugal force, the rolling footprint on the runway of piston star-wheel side is more
Greatly evenly, bearing capacity and Q-percentile life are bigger.Wherein, the curve of shaped form strip hole can be circular arc, involute, pendulum
One kind in the curves such as line, logarithmic curve.In addition, considered based on balance, in each shaped form elongate holes, the number of steel ball is most
It is good equal.
It should be noted that the structure shown in for (c) in Fig. 6 and Fig. 7, in the case where setting 2 or 3 spin,
Need to rationally design the gap between steel ball, it is not reinflated herein where the core of itself and non-invention.
Because sealing retainer does not bear the load of rolling piston wheel directly, therefore rigidity is little, can use be suitable for it is close
The flexible material of envelope such as rubber, plastics or graphite etc..Wherein, the lubricity of polytetrafluoroethylene (PTFE) and sealing are all preferable, as
It is most suitable to seal retainer.Under the high temperature conditions, the material for sealing retainer can be used corrosion-resistant and lubricity preferable
Graphite material, such as soak antimony metal graphite.
On steel ball, in addition to bearing steel, it can use the metal or non-metallic material by other with certain degree of hardness
The spin for expecting to make replaces, such as：Hard alloy, carborundum, silicon nitride, zirconia ceramic etc..Especially in high temperature ring
Under border, the ball hardness of On The Quality of Bearing Steels reduces, and is easily deformed, and is no longer desirable for high temperature resistant, and hard alloy and zirconium dioxide
(ZrO2) etc. the rolling ball body of ceramic material be then highly suitable for applying under this high temperature applicationss.
5th, rotation system second embodiment
The present embodiment is similar with rotation system first embodiment, differs only in using institute in tumbler second embodiment
The tumbler provided.On the tumbler in the present embodiment rotation system, the phase of tumbler second embodiment can refer to
Speak on somebody's behalf bright, on the structure in addition to tumbler, can refer to the related description of rotation system first embodiment, herein no longer
Describe in detail.
6th, fluid motor embodiment
Present invention also offers a kind of fluid motor.The fluid motor is using the tumbler described in first and third embodiment
Or second, five rotation system described in embodiment.Wherein,
In the present embodiment fluid motor, the high-pressure fluid that fluid inlet enters enters tumbler, promotes rolling piston wheel
Rotate, caused moment of torsion is delivered to the outside of work chamber by main shaft, the low-pressure fluid after doing work passes through fluid issuing
Discharge.Wherein, high-pressure fluid herein can be：Liquid, gas or steam.
7th, pump embodiment
Present invention also offers a kind of pump.The pump is implemented using the tumbler described in first and third embodiment or second, five
Rotation system described in example.
In the present embodiment pump, main shaft is transferred a torque in work chamber；Under the drive of main shaft, rolling piston wheel is along work
Make chamber rolls forward, the fluid entered by fluid inlet is pumped into work chamber, and discharge fluid by fluid issuing.
8th, compressor embodiment
Present invention also offers a kind of compressor.Tumbler described in the embodiment of compressor application first and third or
2nd, the rotation system described in five embodiments.
In the present embodiment compressor, main shaft is transferred a torque in work chamber, using excentric sleeve as medium, rolling piston
Wheel is compressed along work chamber's rolls forward to compressed media；Medium after compression is discharged by fluid issuing.
6th, engine
Present invention also offers a kind of engine.Tumbler described in the embodiment of engine application first and third or
2nd, the rotation system described in five embodiments.
In the present embodiment engine, the gases at high pressure entered by combustion chamber promote rolling piston wheel to be rolled forward along work chamber
It is dynamic, caused moment of torsion is transferred to outside work chamber by main shaft, the low-pressure gas after doing work is discharged by fluid issuing.
So far, five embodiments of the invention are described in detail combined accompanying drawing.According to above description, this area
Technical staff should have clear to location sealing component of the present invention and using its tumbler, rotation system and fluid machinery
Understanding.
It should be noted that in accompanying drawing or specification text, the implementation that does not illustrate or describe is affiliated technology
Form known to a person of ordinary skill in the art, is not described in detail in field.In addition, the above-mentioned definition to each element and method is simultaneously
Various concrete structures, shape or the mode mentioned in embodiment are not limited only to, those of ordinary skill in the art can carry out letter to it
Singly change or replace, such as：
(1) number of plies or individual of the positioning hole and steel ball provided circumferentially about of the outer extensions of the outer portion of the sealing retainer
Number, can be adjusted as needed, and number of plies T is generally 1 layer, 2 layers or 3 layers, and number is generally more than 3, and edge
Circumference equidistantly distributes；
(2) on sealing the material and size of retainer, and spin material in itself and size, those skilled in the art
Can reasonable selection as needed, it is not limited to the material and size mentioned in above-described embodiment；
(3) although being illustrated exemplified by rotational structure of the above-described embodiment in the form of eccentric rotor, art technology
Personnel it should be clear that other kinds of rotating mechanism, such as：What applicant was previously mentioned in early stage patent 201110145313.2
The rotational structure that sun gear and planetary piston wheel are formed, is equally applicable to the present invention.
It should also be noted that, the demonstration of the parameter comprising particular value can be provided herein, but these parameters are without definite etc.
In corresponding value, but analog value can be similar in acceptable error margin or design constraint.The side mentioned in embodiment
To term, such as " on ", " under ", "front", "rear", "left", "right" etc., only it is the direction of refer to the attached drawing, is not used for limiting this
The protection domain of invention.Specification and the word of ordinal number such as " first ", " second " etc. used in claim, with modification
Corresponding element, itself, which does not represent the element, any ordinal number, does not also represent the order of a certain element and another element,
The use of those ordinal numbers is only used for enabling the element with certain name to be able to make clearly with another element with identical name
Chu is distinguished.
In summary, the present invention organically combines keeper and seal, there is provided a kind of similar thrust ball axle
The location sealing component held, sealing function can be realized while positioning；Application the location sealing component tumbler,
In rotation system, lateral pressure chamber is set between rolling piston wheel side and location sealing component, utilizes lateral pressure intracavitary side pressure
Pressure caused by power source makes location sealing compressing parts work chamber side, the side sealing of rolling piston wheel is realized, so as to complete
The positioning precision of sealing effectiveness and rolling piston wheel is improved to aspect, it is each in engine, fluid motor, pump, compressor etc.
Field has broad application prospects.
Particular embodiments described above, the purpose of the present invention, technical scheme and beneficial effect are carried out further in detail
Describe in detail it is bright, should be understood that the foregoing is only the present invention specific embodiment, be not intended to limit the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc., it should be included in the guarantor of the present invention
Within the scope of shield.
Claims (23)
- A kind of 1. location sealing component, it is characterised in that including：N number of positioning spin (927)；AndRetainer (926) is sealed, in double-layer circular structure, including：Internal ring portion (926a) and outer portion (926b)；Wherein, the outer portion be radially oriented outside extend, formed outer extensions (926b '), the outer extensions (926b ') with it is interior The 3rd ledge structure is formed between ring portion (926a)；M positioning hole is along the circumferential direction uniformly arranged on the outer extensions, per certain The one or more positioning spin of configuration in the hole of position, wherein, M >=3.
- 2. location sealing component according to claim 1, it is characterised in that the positioning hole is：Circular hole, interior 1 positioning spin of configuration per a positioning hole；OrStraight strip hole, radial direction of its center axis along double-layer circular structure, and the length of the straight strip hole are more than the positioning The diameter of spin, one or more positioning spin of interior configuration per strip hole always, and the number of spin is positioned in each straight strip hole It is identical；OrShaped form strip hole, the line at its first and last end radially has component in double-layer circular structure, and the shaped form is grown The length in bar hole is more than the diameter of the positioning spin, and one or more positioning spin are configured in each shaped form strip hole, and respectively The number of positioning spin is identical in individual shaped form strip hole.
- 3. location sealing component according to claim 1, it is characterised in that the M positioning hole is arranged at the sealing On T circumference of the different radii of the outer extensions of the outer portion of retainer, wherein, T >=2, M >=6.
- 4. location sealing component according to claim 1, it is characterised in that the outer portion is radially oriented inner side and extended, Extension (926b ") in formation；The vertical section of the sealing retainer (926) is in 90 ° clockwise or counterclockwise of " convex " Font.
- 5. location sealing component according to claim 4, it is characterised in that the outer portion of the sealing retainer is located at footpath It is recessed towards internal ring portion to one section of inner side.
- 6. location sealing component according to any one of claim 1 to 5, it is characterised in that the sealing retainer (926) material is rubber, plastics or graphite；And/or the material of the spin be hard alloy, carborundum, silicon nitride or Zirconia ceramic.
- A kind of 7. tumbler, it is characterised in that including：Work chamber；Main shaft (200), its center axis overlap with the central axis of the work chamber；Rotating mechanism (610), the part that the main shaft is located at work chamber is sheathed on, by being rotated in work chamber Form axially extending seal operation space；AndSide location sealing mechanism (900), including：One or two location sealing as any one of claim 1 to 6 Component, it is installed between the rotating mechanism side and work chamber's respective side, for realizing the rotating mechanism corresponding side The sealing in face.
- 8. tumbler according to claim 7, it is characterised in that：The rotating mechanism is eccentric rotor component, including：Rolling piston wheel (613), its inner cylinder in the work chamber Face rolls and forms the axially extending crescent annular seal space；The rolling piston wheel (613) is integrally cylindrical in shape structure, and it is in three for being radially divided into width from inside to outside and being stepped up Point：Inner cylinder portion (613a), middle cylinder portion (613b) and outer cylindrical portion (613c), between the inner cylinder portion (613a) and middle cylinder portion (613b) Form first step structure；The first step structure of the 3rd ledge structure and the rolling piston wheel of the sealing retainer of the location sealing component It is mutually clamped, N number of positioning spin in the location sealing component presses on middle cylinder portion (613b) and the work of rolling piston wheel Between chamber respective side.
- 9. tumbler according to claim 8, it is characterised in that the outer cylindrical portion (613c) and work of the rolling piston wheel It is close but do not contact to make chamber corresponding side, distance, delta 1 between the two meets：The ＜ D2 of Δ 1Wherein, D2 is the thickness of the outer extensions (926b ') of the outer portion of the sealing retainer.
- 10. tumbler according to claim 8, it is characterised in that：The outer extensions (926b ') of the outer portion of the sealing retainer extend to the position of the outer cylindrical portion (613c) of rolling piston wheel Put, also, the thickness D2 of the outer extensions is less than middle cylinder portion (613b) and the distance D of work chamber's respective side, so as in institute State the lateral pressure chamber (923) that ring-type is formed between outer extensions (926b ') and middle cylinder portion (613b)；There is lateral pressure source, the lateral pressure source, which provides pressure, makes the extension of the sealing retainer in the lateral pressure chamber (923) Extending portion is close to work chamber's corresponding side.
- 11. tumbler according to claim 8, it is characterised in that：The eccentric rotor component also includes：Excentric sleeve (611), it is arranged and is fixed on the portion that the main shaft is located at work chamber Point, the central axis of its center axis and main shaft is parallel to each other and the pre-determined distance that staggers；And spring bearing (612), symmetrically It is sheathed between excentric sleeve and the rolling piston wheel, its left and right sides and the left and right two of the inner cylinder portion of the rolling piston wheel Side flush；Wherein, the outer portion of the sealing retainer is radially oriented inner side and extended, extension (926b ") in formation, the interior extension Portion (926b ") extends close to the position of excentric sleeve (611), and distance between the two is between 20 μm~100 μm.
- A kind of 12. tumbler, it is characterised in that including：Work chamber；Main shaft (200), its center axis overlap with the central axis of work chamber；Rotating mechanism (610), the part that the main shaft is located at work chamber is sheathed on, by being rotated in work chamber Form axially extending seal operation space；AndSide location sealing mechanism (900), including：One or two location sealing component, the location sealing component are installed on institute State between the side of rotating mechanism and work chamber's respective side, for realizing the sealing of the rotating mechanism respective side, bag Include：Side locating ring (911), overall is in double-layer circular structure, including：Internal ring portion (911a) and outer portion (911b), it is described outer Ring portion (911b) is radially oriented outside and extended, and forms outer extensions (911b '), the outer extensions (911b ') and the internal ring portion Second step structure is formed between (911a)；AndFloating piston ring (912), it is installed on the outer extensions (911b ') of the rotating mechanism (610) and the side locating ring Between.
- 13. tumbler according to claim 12, it is characterised in that：The rotating mechanism is eccentric rotor component, including：Rolling piston wheel (613), its inner cylinder in the work chamber Face rolls and forms the axially extending crescent annular seal space；The rolling piston wheel (613) is integrally cylindrical in shape structure, and it is in three for being radially divided into width from inside to outside and being stepped up Point：Inner cylinder portion (613a), middle cylinder portion (613b) and outer cylindrical portion (613c), between the inner cylinder portion (613a) and middle cylinder portion (613b) Form first step structure；The second step structure of the side locating ring and the first step structure of the rolling piston wheel are mutually clamped.
- 14. tumbler according to claim 13, it is characterised in that：For the floating piston ring (912), it diametrically determines with the outer cylindrical portion (613c) of rolling piston wheel and side respectively Outer extensions (911b ') sealing of the outer portion of position ring；And in the axial direction, its thickness D1 is less than the middle cylinder portion of rolling piston wheel (613b) and the distance D of work chamber's respective side, so as in the middle cylinder portion of floating piston ring (912) and rolling piston wheel The lateral pressure chamber (913) of ring-type is formed between (613b)There is lateral pressure source, the lateral pressure source, which provides pressure, makes the floating piston ring (912) tight in the lateral pressure chamber (913) It is attached to work chamber's corresponding side.
- 15. the tumbler according to claim 10 or 14, it is characterised in that the axial dimension of the lateral pressure chamber between Between 0.2mm~1.0mm.
- 16. the tumbler according to claim 10 or 14, it is characterised in that：By the part of spring, disc spring or O-ring as lateral pressure source or lateral pressure source；And/orOuter cylindrical portion (613c) corresponding side offers at least one opening (613c "), is passed through by the crescent annular seal space The opening imports a part of the pressure fluid of the lateral pressure chamber as the lateral pressure source or lateral pressure source.
- 17. tumbler according to claim 16, it is characterised in that outer cylindrical portion (613c) corresponding side is circumferentially square To uniformly offering 2~10 through flow holes.
- 18. the tumbler according to any one of claim 7 to 14, it is characterised in that the side location sealing machine Structure includes：Two location sealing components, are respectively arranged between the side of the rotating mechanism and work chamber's respective side, use In the sealing for realizing the rotating mechanism both sides；Wherein, the both sides of the work chamber set liner plate, and described two location sealing components are respectively arranged in the rotating machine Between the side of structure and the liner plate of work chamber's corresponding side.
- A kind of 19. rotation system, it is characterised in that including：The tumbler of at least three eccentric rotor structures, i.e., one main rotation Device, at least one left tumbler and at least one right tumbler；Wherein, at least one at least three tumbler is to turn any one of claim 8-11,13-18 Dynamic device.
- A kind of 20. fluid motor, it is characterised in that including：Tumbler any one of claim 8-11,13-18 Or the rotation system described in claim 19；In the fluid motor, the high-pressure fluid entered by fluid inlet promotes rolling piston wheel to rotate, by main shaft by caused by Moment of torsion is delivered to the outside of work chamber, and the low-pressure fluid after doing work is discharged by fluid issuing.
- A kind of 21. pump, it is characterised in that including：Tumbler or right any one of claim 8-11,13-18 It is required that the rotation system described in 19；In the pump, main shaft is transferred a torque in work chamber；Under the drive of main shaft, rolling piston wheel along work chamber forward Roll, the fluid entered by fluid inlet is pumped into work chamber, and discharged fluid by fluid issuing.
- A kind of 22. compressor, it is characterised in that including：Tumbler any one of claim 8-11,13-18 or Rotation system described in claim 19；In the compressor, main shaft is transferred a torque in work chamber, and rolling piston wheel is along work chamber's rolls forward, to compression Medium is compressed, and the medium after compression is discharged by fluid issuing.
- A kind of 23. engine, it is characterised in that including：Tumbler any one of claim 8-11,13-18 or Rotation system described in claim 19；In the engine, the gases at high pressure entered by combustion chamber promote rolling piston wheel to pass through master along work chamber's rolls forward Caused moment of torsion is delivered to the outside of work chamber by axle, and the low-pressure gas after doing work is discharged by fluid issuing.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354113.0A CN107435628B (en) | 2016-05-25 | 2016-05-25 | Location sealing component and rotating device, rotation system and the fluid machinery for applying it |
| PCT/CN2016/095995 WO2017201895A1 (en) | 2016-05-25 | 2016-08-19 | Rotating system, and fluid motor, compressor, pump and engine using same |
| PCT/CN2017/085772 WO2017202346A1 (en) | 2016-05-25 | 2017-05-24 | Positioning and seal assembly and rotating system, fluid machine and rotating device using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354113.0A CN107435628B (en) | 2016-05-25 | 2016-05-25 | Location sealing component and rotating device, rotation system and the fluid machinery for applying it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107435628A true CN107435628A (en) | 2017-12-05 |
| CN107435628B CN107435628B (en) | 2019-05-10 |
Family
ID=60412079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610354113.0A Active CN107435628B (en) | 2016-05-25 | 2016-05-25 | Location sealing component and rotating device, rotation system and the fluid machinery for applying it |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107435628B (en) |
| WO (1) | WO2017202346A1 (en) |
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Also Published As
| Publication number | Publication date |
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| WO2017202346A1 (en) | 2017-11-30 |
| CN107435628B (en) | 2019-05-10 |
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