CN104100299A - Rotating device, fluid motor, engine, compressor and pump using same - Google Patents
Rotating device, fluid motor, engine, compressor and pump using same Download PDFInfo
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- CN104100299A CN104100299A CN201310127518.7A CN201310127518A CN104100299A CN 104100299 A CN104100299 A CN 104100299A CN 201310127518 A CN201310127518 A CN 201310127518A CN 104100299 A CN104100299 A CN 104100299A
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- slewing gear
- hole
- star
- cylinder body
- slewing
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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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/40—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member
- F04C2/46—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member with vanes hinged to the outer member
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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
- F04C15/0007—Radial sealings for working fluid
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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
- F04C2230/00—Manufacture
- F04C2230/60—Assembly methods
- F04C2230/602—Gap; Clearance
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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
- F04C2240/00—Components
- F04C2240/50—Bearings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides a rotating device and a fluid motor, an engine, a compressor and a pump using the same. In the rotating device, a non-contact sealing structure of a cylindrical inner chamber of a cylinder body is achieved through a gas film lubricating design or a liquid film lubricating design between an expansion piston ring and a star wheel sealing flange so that the rotating device can be operated in a high-frequency and oil-free working environment.
Description
Technical field
The present invention relates to fluid machinery technical field, relate in particular to a kind of slewing gear and apply fluid motor, motor, compressor and the pump of this slewing gear.
Background technique
Power switching device is a kind of by carrying out the energy conversion device of conversion mutually between mechanical energy and fluid pressure energy, for example, comprise motor, fluid motor, compressor and pump.In the traditional field of motor, mainly contain the mechanical structures such as reciprocating piston type four stroke engine, rotary polygonal piston engine, gas turbine.In the traditional field of fluid motor, mainly contain the mechanical realizations such as piston type, blade type, gear type.In the traditional field of compressor and pump, mainly contain the mechanical structures such as plunger type, blade type, gear type, screw type and eddy type.For traditional power switching device, because its main movement element is all taked sliding friction form, cause large energy consumption inner at power switching device, cause its energy conversion efficiency low.
Claimant of the present invention proposed a kind of star rotating type rotating device and has applied its fluid mechanical device (number of patent application: 201010196950.8) in June, 2010.As shown in Figure 1, this star rotating type rotating device comprises: containing the cylinder body of cylinder cavity with by the main shaft of the cylinder body seal endcap support of cylinder body both sides, center sun gear drum sleeve is located on main shaft; The inner cylinder face looping piston space of the outer cylinder face of center sun gear cylinder and cylinder body; Annular piston space can be connected with fluid import/export by first group of through hole, can be connected by second group of go out with fluid/import of through hole; Planet piston wheel is placed in annular piston space with means of rolling, and its two ends of stretching out outside annular piston space are connected on main shaft by a connection piece; Planet piston wheel is cylinder roller; Isolation structure is positioned at annular piston space, between first group of through hole and second group of through hole, for annular piston space being isolated into two variable volume working spaces; Planet piston wheel, under the effect of the fluid pressure differential of two variable volume working spaces along moving in annular piston space.Yet above-mentioned star rotating type rotating device and applying in its all kinds of fluid mechanical devices, because the motion of interrupter is not to move continuously completely, because its noise problem is difficult to avoid, has limited its application of having relatively high expectations under environment at noise greatly.
Eccentric rotator type compressor is a kind of of existing compressor.Fig. 2 is the structural representation of prior art eccentric rotator type compressor.This eccentric rotator type compressor can be with reference to reference 2 (number of patent application: 200780027498.9).Please refer to Fig. 2, this rolling rotor type compressor comprises cylinder body 1, rolling rotor 2, eccentric bushing 3, with live axle 4, swivel stop, the helical spring of eccentric crankshaft part.Between the eccentric crankshaft part of live axle 4 and rolling rotor 2, arrange can be between them the eccentric bushing 3 of flexible rotating, thereby make the throw of eccentric of rolling rotor 2 be adjusted and realize at work the flexible contact of rolling, seal.Eccentric bushing 3 one sides revolve round the sun around live axle, and one side is done rotation around eccentric center.And the rotating part of swivel stop is under helical spring spring-force driven dual, with swinging unit, be pressed on the outer round surface of rolling rotor 2, realize swing type isolation.The advantages such as that the eccentric rotator type compressor of the type has is simple in structure, smooth running, have very wide application at compressor field.
In above-mentioned eccentric rotator type compressor, because its frequency is lower, and can be operated in oil lubrication situation, so its cylinder body seal problem is easier to solve.Yet up to now, above-mentioned eccentric rotor structure is not applied to fluid motor and engine art.Trace it to its cause, be due in high frequency, be not slowly resolved without the problem of the cylinder body seal under oily working environment, thereby limited greatly the application of this kind of eccentric rotor structure under the scenes such as motor and fluid motor.
Summary of the invention
(1) technical problem that will solve
In view of above-mentioned technical problem, the invention provides a kind of slewing gear and apply fluid motor, motor, compressor and the pump of this slewing gear.
(2) technological scheme
According to an aspect of the present invention, provide a kind of slewing gear.This slewing gear comprises: cylinder body, and cylindrical; Front/rear end cover, is sealedly attached to respectively the front/rear two ends of cylinder body, forms a cylindrical cavity with cylinder body is common; Main shaft, is supported the central axes of its central axis and cylindrical cavity rotationally by cylinder body and/or front/rear end cover; Rotor assembly, is sheathed on the part that main shaft is positioned at cylindrical cavity, forms axially extended seal operation space by rotating in cylindrical cavity; Interrupter, its end seals mutually with rotor assembly, thereby by axially extended seal operation spatial separation, be separate, respectively by being arranged at first group of through hole and second group of the first variable volume chamber and the second variable volume chamber that through hole is connected with cylinder body outside on cylinder body; And cylinder body seal assembly, be positioned at the outside of cylindrical cavity rotor assembly, comprising: two star-wheel fastening flanges, be arranged at respectively the outside of cylindrical cavity rotor assembly, with rotor assembly interlock, embedding groove is offered at the middle part of its external cylindrical surface; Two expansion piston rings, expand respectively and are fixed in the embedding groove of two star-wheel fastening flange external cylindrical surfaces, are sealed and matched with the inner cylinder face of cylinder body, and the gap that there is pre-set dimension with bottom and the sidewall of embedding groove; The micro fluid being leaked out by this gap forms fluid film under rotatablely moving of star-wheel fastening flange drives, and this fluid film is realized the sealing of cylindrical cavity.
According to another aspect of the present invention, also provide a kind of fluid motor.This fluid motor comprises above-mentioned slewing gear, and second group of through hole of this slewing gear is connected with high-pressure liquid import; First group of through hole is connected with low-pressure fluid outlet.
According to another aspect of the present invention, also provide a kind of motor.This motor comprises above-mentioned slewing gear, and second group of through hole of this slewing gear is connected with firing chamber; First group of through hole is connected with outlet port.
According to another aspect of the present invention, also provide a kind of compressor.This compressor comprises above-mentioned slewing gear; Second group of through hole of this slewing gear is connected with low pressure compressed media inlet opening, and first group of through hole is connected with the exhaust port of high pressure compressed medium after compression.
According to another aspect of the present invention, also provide a kind of pump.This pump comprises above-mentioned slewing gear; First group of through hole of this slewing gear is connected with fluid inlet; Second group of through hole is connected with fluid output.
(3) beneficial effect
From technique scheme, can find out, slewing gear of the present invention and the fluid mechanical device of applying this slewing gear have following beneficial effect:
(1) non-contact that realizes cylinder body cylindrical cavity by the gas film lubrication design between expansion piston ring and star-wheel fastening flange or fluid film lubrication design seals, make slewing gear can run on high frequency-without in oily working environment, realized the efficient low-consume rotary seal of slewing gear;
(2) in eccentric rotator type slewing gear, meticulous Seal Design to the both sides end face Key of Implementation of eccentric rotor assembly, eccentric crankshaft is connected with star-wheel fastening flange, both are without relative movement, accomplish zero leakage, the both sides end face of rolling piston wheel and inner cylinder face with in abutting connection with part, formed the L-type labyrinth-like that machinery-free contacts and sealed, make the both sides end face of rolling piston wheel of High Rotation Speed under the assurance of the radial and axial precision positioning of rolling bearing, be able to long term maintenance and stablize default friction boundary face micro-gap, effectively controlled the leakage of fluid in slewing gear,
(3) by the motion of the pneumatic reset pin of stopcock body, realize the automatic opening and closing of air inlet (liquid) mouth, this composite valve function of pneumatic reset pin, not only simplified mechanical realization, and improved functional reliability and the life-span of elastic element;
(4), by golden rule theory is introduced in slewing gear, can optimizes the size of cylinder body, sun gear and roller planet piston wheel, and then improve the operational efficiency of star rotating type rotating device.
Accompanying drawing explanation
Fig. 1 is the structural representation that prior art can be used for the star rotating type rotating device of fluid motor and motor;
Fig. 2 is the structural representation of prior art eccentric rotator type compressor;
Fig. 3 A is the sectional view of embodiment of the present invention slewing gear;
Fig. 3 B be slewing gear shown in Fig. 3 A at suction port opening state the sectional view along A-A direction;
Fig. 3 C be slewing gear shown in Fig. 3 A at inlet close state the sectional view along A-A direction;
Fig. 4 A is the sectional view of inner each element of the inner cylinder of slewing gear cylinder body shown in Fig. 3 face;
Fig. 4 B is the stereogram of inner each element of the inner cylinder of slewing gear cylinder body shown in Fig. 3 face;
Fig. 4 C is the partial enlarged drawing of star-wheel fastening flange, rolling piston wheel, eccentric crankshaft and rolling bearing connecting part in slewing gear shown in Fig. 3 A;
Fig. 5 is the schematic diagram of friction condition between expansion piston ring and cylinder body in embodiment of the present invention slewing gear, star-wheel fastening flange;
Fig. 6 A is the schematic diagram that in another embodiment of the present invention slewing gear, in cylinder body seal assembly, expansion piston ring mates with star-wheel fastening flange external cylindrical surface embedding groove;
Fig. 6 B is the schematic diagram that in yet another embodiment of the invention slewing gear, in cylinder body seal assembly, expansion piston ring mates with star-wheel fastening flange external cylindrical surface embedding groove;
Fig. 6 C is the schematic diagram that in yet another embodiment of the invention slewing gear, in cylinder body seal assembly, expansion piston ring mates with star-wheel fastening flange external cylindrical surface embedding groove;
Fig. 7 A to Fig. 7 H is the schematic diagram of embodiment of the present invention fluid motor workflow;
Fig. 8 is the sectional view of the embodiment of the present invention fluid motor that comprises two slewing gears.
Fig. 9 A is the output torque curve of the embodiment of the present invention fluid motor that only comprises a slewing gear;
Fig. 9 B is the output torque curve of the embodiment of the present invention fluid motor that comprises two slewing gears.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.It should be noted that, in accompanying drawing or specification description, similar or identical part is all used identical figure number.The implementation that does not illustrate in accompanying drawing or describe is form known to a person of ordinary skill in the art in affiliated technical field.Although the demonstration of the parameter that comprises particular value can be provided herein, should be appreciated that, parameter is without definitely equaling corresponding value, but can in acceptable error margin or design constraints, be similar to corresponding value.In addition, the direction term of mentioning in following examples, such as " on ", D score, 'fornt', 'back', " left side ", " right side " etc., be only the direction with reference to accompanying drawing, be not used for limiting the present invention.
The present patent application people is on the basis of production practices for many years, use for reference the structure of eccentric rotator type compressor in above-mentioned prior art, proposed a kind ofly by piston wheel fastening flange and expansion piston ring, to carry out the slewing gear of cylinder body seal and apply fluid motor, motor, compressor and the pump of this slewing gear, to realize the reliable sealing of cylinder body on-mechanical contact-type.For convenience of understanding, first related primary component in the present invention is numbered to explanation, as follows:
110-cylinder body; 111-main body cylinder block;
112-front end housing; 113-back cylinder cover;
120, the front/rear end cap of 130-; 140-cylinder head;
200-main shaft; 300-rotor assembly;
310-eccentric crankshaft; 320-rolling bearing;
330-rolling piston wheel; 400-stopcock formula interrupter;
411-puts groove; 412-stopcock body;
420-stopcock body resetting-mechanism; 421-pin blind hole;
422-reset pin; 423-bypass;
600-cylinder body seal assembly; 611,612-star-wheel fastening flange;
621,621 ', 622-expansion piston ring; 621a-spherical ball;
630-equilibrate counterweight; 640-flange bent axle positioning dowel;
A-the first slewing gear; B-the second slewing gear;
C-seal diaphragm.
Slewing gear
In one exemplary embodiment of the present invention, provide a kind of slewing gear.Fig. 3 A is the sectional view of embodiment of the present invention slewing gear.Fig. 3 B and Fig. 3 C are respectively the sectional view along A-A direction when two states of slewing gear shown in Fig. 3 A.Please refer to Fig. 3 A and Fig. 3 B, this slewing gear comprises: cylinder body 110, and cylindrical, by main body cylinder block 111 and the front end housing 112 and the back cylinder cover 113 that are separately positioned on these main body cylinder block 111 front/rear end faces, jointly formed; Front/rear end cover (120,130), is sealedly attached to respectively on the cylinder cap at front/rear two ends of cylinder body, forms a cylindrical cavity with cylinder body is common; Main shaft 200, is supported the central axes of its central axis and cylindrical cavity rotationally by cylinder body 110 and/or front/rear end cover (120,130); Rotor assembly, is sheathed on the part that main shaft is positioned at cylindrical cavity, forms axially extended seal operation space by rotating in cylindrical cavity; Interrupter, its front end seals mutually with rotor assembly, thereby by axially extended seal operation spatial separation, be separate the first variable volume chamber and the second variable volume chamber, this first variable volume chamber and the second variable volume chamber are connected with cylinder body outside by first group of through hole and the second group of through hole being arranged on cylinder body respectively; And cylinder body seal assembly 600, be positioned at the outside of cylindrical cavity rotor assembly, for realizing the sealing in seal operation space.Wherein cylinder body seal assembly 600, comprising: two star-wheel fastening flanges (611 and 612), be arranged at respectively in the cylindrical cavity of front/rear end cap inner side, and with rotor assembly interlock, and coordinate with main shaft by key, embedding groove is offered at the middle part of its external cylindrical surface; Two expansion piston rings (621,622), expand respectively and are fixed in the embedding groove of two star-wheel fastening flange external cylindrical surfaces, are sealed and matched with the inner cylinder face of cylinder body, and the gap that there is pre-set dimension with bottom and the sidewall of embedding groove; The micro fluid being leaked out by this gap forms fluid film under rotatablely moving of described star-wheel fastening flange drives, and this fluid film is realized the sealing of described cylindrical cavity.This pre-set dimension is between 0.02mm～0.3mm.
Below respectively each constituent elements of the present embodiment slewing gear is elaborated.
Cylinder body 110 is cylindrical, has an inner cylinder face.Cylinder body 110 comprises main body cylinder block 111, is separately positioned on front end housing 112 and the back cylinder cover 113 of these main body cylinder block 111 front/rear end faces.Predeterminated position in main body cylinder block 111 outsides, is generally top, and cylinder head 140 is set.The stopcock body of follow-up interrupter and resetting-mechanism thereof all arrange position that should cylinder head 140, and these contents will below be elaborated.
Front/rear end cover (120 and 130), is sealedly attached to respectively the front/rear two ends of the front/rear cylinder cap of cylinder body 110 (112 and 113), forms cylindrical cavities with cylinder body 110 is common.This cylindrical cavity is the working zone of the present embodiment slewing gear.
Main shaft 200 carries out rotating radial location support by the rolling bearing being located on the front/rear cylinder cap of cylinder body (112 and 113); Its axially locating completes support, the central axes of its central axis and cylindrical cavity by the fine adjustment that is pressed in the front/rear end cover (120 and 130) on rolling bearing outer collar end face.Main shaft 200 is transmitting torque between the outside of cylindrical cavity and inside, take compressor as example: the first portion of this main shaft 200 is positioned at outside cylindrical cavity, join with external power source, by the torque transfer of external power source input to cylindrical cavity; Second portion is positioned at cylindrical cavity, utilizes the moment of torsion of external power source input to drive eccentric rotor assembly 300 to rotate.
It should be noted that, although main shaft only has one end to stretch out outside cylindrical cavity in the present embodiment, by a side, input or output moment of torsion,, the present invention comprises that main shaft two ends all stretch out outside cylindrical cavity equally, is inputed or outputed the situation of moment of torsion by two ends.Those skilled in the art should very clearly understand that how this kind of technological scheme realizes, and repeats no more herein.
Rotor assembly is sheathed on the part that main shaft 200 is positioned at cylindrical cavity, forms axially extended seal operation space by rotating in cylindrical cavity.
The front end of interrupter seals mutually with rotor assembly, thereby by above-mentioned seal operation spatial separation, be separate the first variable volume chamber and the second variable volume chamber, this first variable volume chamber and the second variable volume chamber are connected with cylinder body outside by first group of through hole and the second group of through hole being arranged on cylinder body respectively.
Fig. 4 A is the sectional view of inner each element of cylinder body inner cylinder face in slewing gear shown in Fig. 3.Fig. 4 B is the stereogram of inner each element of cylinder body inner cylinder face in slewing gear shown in Fig. 3.Please refer to Fig. 4 A and Fig. 4 B, in the present embodiment, rotor assembly is eccentric rotor assembly 300.This eccentric rotor assembly 300 is sheathed on the part that main shaft 200 is positioned at cylindrical cavity, comprising: eccentric crankshaft 310, be sheathed on the part that main shaft 200 is positioned at cylindrical cavity, and the central axis of its central axis and main shaft 200 is parallel to each other and staggers predeterminable range; Rolling piston wheel 330, is sheathed on eccentric crankshaft 310 central axes of its central axis and eccentric crankshaft 310.These rolling piston wheel 330 inner cylinder faces along cylinder body 110 roll, and between the inner cylinder face of cylinder body 110 and the external cylindrical surface of rolling piston wheel 330, form axially extended crescent shape seal operation space.
In the present embodiment slewing gear, the selection of the eccentric amount e of eccentric crankshaft, is the key of mechanism design, and what it can not design is excessive or too small.Take motor as example, and offset is too little, and the diameter of eccentric crankshaft is too large, and the output torque of motor is just less; Eccentric amount e is too large, although moment of torsion becomes greatly, the needed instantaneous power of motor starting is just larger, device start difficulty, and practicability is affected.Only have when eccentric amount e is between R/8～R/5, could under high pulling torque and low starting power, average out, reach the requirement of practicability, wherein R is the radius of cylinder body inner cylinder face.For example, in applying 5 prepared fluid motors of the present invention, the value of eccentric amount e is respectively: R/8; R/7; R/6; R/6; R/5.The running efficiency that experiment showed, these 5 fluid motors has all reached designing requirement.
In order to reduce the friction between eccentric crankshaft 310 and rolling piston wheel 330, the present embodiment slewing gear also comprises: at least two rolling bearings 320, be sheathed on symmetrically on eccentric crankshaft 310, its inside race is fixed on eccentric crankshaft 310, its outer collar is fixed on rolling piston wheel 330, to completely cut off both rotations.Pretension elastic force between those rolling bearings and rolling piston wheel is pressed in rolling piston wheel in the inner cylinder face of cylindrical cavity, makes the inner cylinder face of cylindrical cavity and the external cylindrical surface of rolling piston wheel form axially extended crescent shape sealed chamber.
In order to realize the reliable sealing of cylinder body, please refer to Fig. 4 A, star-wheel fastening flange is the shape towards " L " at cylindrical cavity center; Two star-wheel fastening flanges are sheathed on main shaft, and eccentric crankshaft is sheathed on the inner side of both sides " L " shape star-wheel fastening flange.Be positioned at the star-wheel fastening flange of the same side and eccentric crankshaft is one-body molded or respectively moulding.Between eccentric crankshaft and star-wheel fastening flange, without relative movement, accomplish zero leakage,
Fig. 4 C is the enlarged view of star-wheel fastening flange, rolling piston wheel, eccentric crankshaft and rolling bearing connecting part in slewing gear shown in Fig. 3 A.Please refer to Fig. 4 C, the inner side of eccentric crankshaft arranges the shaft shoulder, and the inner ring of rolling bearing is fixed on the shaft shoulder of eccentric crankshaft; Between the corresponding position of rolling piston wheel side and its star-wheel fastening flange side, outside, and between the part in eccentric crankshaft shaft shoulder outside and the corresponding position of rolling piston wheel inner cylinder face, the labyrinth sealing of common formation " L " shape.Particularly, in the labyrinth sealing of " L " shape, between the corresponding position of rolling piston wheel side and its star-wheel fastening flange side, outside, and the clearance delta between the part in eccentric crankshaft shaft shoulder outside and the corresponding position of rolling piston wheel inner cylinder face is between 0.03mm～0.06mm.
Facts have proved, " L " shape labyrinth-like sealing contacting by machinery-free, make the both sides end face of roller of High Rotation Speed under the assurance of the radial and axial precision positioning of star-wheel back-up roller dynamic bearing, be able to long term maintenance and stablize default friction boundary face micro-gap, effectively controlled leakage.In applying 5 prepared fluid motors of the present invention, the value of clearance delta is respectively: 0.03mm; 0.04mm; 0.05mm; 0.05mm; 0.06mm.Experiment showed, the good seal of these 5 fluid motor cylindrical cavities.
In addition, it should be apparent to those skilled in the art that, except above-mentioned eccentric rotor assembly, this rotor assembly can also be the rotor assembly of other types, for example claimant of the present invention (number of patent application: the star gyrator assembly 201010196950.8) proposing in patent before.This star gyrator assembly comprises: be sheathed on several cylindrical planetary piston wheels that the outer cylinder face of sun gear cylinder Ji center, main shaft Shang center sun gear cylinder and the inner cylinder face looping piston space of described cylinder body roll.
Please refer to Fig. 3 B, in the present embodiment, interrupter is stopcock formula interrupter 400.This stopcock formula interrupter 400 comprises: stopcock body 412 and stopcock body resetting-mechanism 420.This stopcock body 412 is under the effect of stopcock body resetting-mechanism 420, and end is pushed down the outer surface of rolling piston wheel all the time, thereby is separate the first variable volume chamber and the second variable volume chamber by crescent shape seal operation spatial separation.
On main body cylinder block 111 position of corresponding cylinder head 140 be formed with one axially extended, towards cylindrical cavity, open wide put groove.This stopcock body 412 is fitted in this and puts in groove and put the rotating support of groove by this, and swings in predetermined angular range.When eccentric rotor assembly turn to upper position time, stopcock body 412 is pressed into this and puts in groove, is the state of being pressed into.When eccentric rotor assembly turns to lower position, stopcock body is rocked to its maximum position, is the state of stretching out.This stopcock body 412 is separate the first variable volume chamber and the second variable volume chamber by described axially extended seal operation spatial separation, define its just facing to chamber be the second chamber, its back side towards chamber be the first chamber.
In the present embodiment, stopcock body is followed golden section ratio with the angle ω of diameter of cylinder by stopcock body rotatingshaft, i.e. ω=(1-0.618) * 90 °=34.38 °.In other embodiment of the present invention, this ω can be between 30 ° to 40 °.
Facts have proved, by the theory of golden rule is introduced in slewing gear, can optimize the size of cylinder body, sun gear and roller planet piston wheel, and then improve the operational efficiency of star rotating type rotating device.In applying 5 prepared fluid motors of the present invention, the value of ω is respectively: 30 °; 32 °; 35 °; 38 °; 40 °.The running efficiency that experiment showed, these 5 fluid motors has all reached designing requirement.
In the present embodiment, stopcock body is sheet structure, i.e. stopcock sheet.But this stopcock body can be also semicircular structure as shown in Figure 2 etc.In addition, those skilled in the art also should be understood that, except stopcock body and resetting-mechanism thereof, interrupter of the present invention can also adopt the valve body of other types, for example: stopcock sheet (number of patent application: 200780027498.9); Gate valve (number of patent application: 201110322746.0); Stopcock body (number of patent application: 201110145313.2) etc.The mounting type of these interrupters can, with reference to pertinent literature, be not described in detail herein.
In the present embodiment, no matter the interrupter of which kind of form, because the motion of eccentric rotor assembly is the motions without stop of 360 degree, thereby the motion of interrupter is continuous too, the motion that lifting angle gradually changes, thus overcome the impact noise problem of interrupter.
As shown in Fig. 3 B and Fig. 3 C, stopcock body resetting-mechanism 420 is for being installed with all the time in the external cylindrical surface of rolling piston wheel stopcock body.In the bottom that puts groove, side, to stopcock body position, has a pin blind hole.The reset pin 422 of slidable sealing inserts pin blind hole, and its end is along the direction towards stopcock body.Elastic component, be positioned at the pin hole of described reset pin 422 inner sides, its end is connected to the afterbody of described reset pin 422, and the elastic force of generation makes to reset the head of pin 422 along withstanding stopcock body towards the direction of stopcock body, realizes the reset sealing of described stopcock body.
Those skilled in the art should be understood that equally, and this stopcock body resetting-mechanism can be also the resetting-mechanism of other types, such as being arranged on mechanical type resetting-mechanism of cylinder body outside etc.Those mechanical type resetting-mechanisms are at the application's the previous patent of claimant (number of patent application: elaborate 201120071995.2), no longer repeat herein.
Please refer to Fig. 4 A and Fig. 4 B, cylinder body seal assembly 600 is positioned at cylindrical cavity, the outside of rotor assembly, comprise: two star-wheel fastening flanges (611 and 612), be arranged at respectively in the cylindrical cavity of front/rear end cap (120 and 130) inner side, with rotor assembly interlock, and coordinate with main shaft by key, embedding groove is offered at the middle part of its external cylindrical surface; Two expansion piston rings (621 and 622), expand and be fixed in the embedding groove of two star-wheel fastening flanges (611 and 612) external cylindrical surface respectively, be sealed and matched with the inner cylinder face of cylinder body 110 in (fit sealing face as shown in Figure 5), and the gap that there is pre-set dimension with bottom and the sidewall of embedding groove, for example: the gap of 0.02mm～0.3mm.When rotor assembly is eccentric rotor assembly, this two star-wheels fastening flange and eccentric crankshaft are fixed by flange bent axle fixing pin.When rotor assembly is star gyrator assembly, this two star-wheels fastening flange is connected with cylindrical planetary piston wheel.
It should be apparent to those skilled in the art that, in the situation that star-wheel fastening flange be set seal, if adopt contacting mechanical seal between star-wheel fastening flange (611 and 612) and cylinder body 110 inner cylinder faces, the star-wheel fastening flange of high speed circular revolution (611 and 612) is inevitable very large with the friction of cylinder body 110 contacting parts so, friction generates heat, part will soon wear and tear and even be burned, unless star-wheel fastening flange (611 and 612) and cylinder body 110 bubbles are in lubricant oil.And high frequency without oily engineering demand in, this is not in the cards.
In the present embodiment, expansion piston ring (621 and 622) is expanded and is fixed in the groove at star-wheel fastening flange (611 and 612) external cylindrical surface middle part, by expansion piston ring, realize the reliable sealing of cylinder body cylindrical cavity working zone.Fig. 5 is the schematic diagram of friction condition between expansion piston ring and cylinder body in embodiment of the present invention slewing gear, star-wheel fastening flange.Below in conjunction with Fig. 5, the abrasion condition of this piston ring and outside inboard wall of cylinder block and inner side star-wheel fastening flange is carried out to analytic explanation.
Please refer to Fig. 5, between the external cylindrical surface of star-wheel fastening flange (611 and 612) and cylinder body 110 inner cylinder faces, there is suitable clearance delta C, be that star-wheel fastening flange (611 and 612) does not directly contact with cylinder body 110 inwalls, do not produce direct friction between the two.In the preferred embodiment of the invention, gap 0.08mm≤Δ C≤0.3mm of star-wheel fastening flange external cylindrical surface and cylinder body inner cylinder face.
Many experiments proves, when the fine clearance of seal space is less than 0.02mm, the gas of its leakage is considerably less, substantially negligible.And when fine clearance is greater than 0.3mm, reveals gas and will have influence on variable volume seal space.In the present invention, the fine clearance all between the side of expansion piston ring (621 and 622) and star-wheel fastening flange (611 and 612) embedding groove and bottom with 0.02mm to 0.3mm, both guaranteed the substantially complete of seal operation space, can ensure again minimum gas and leak from this fine clearance, the secret formula that the present invention realizes cylindrical cavity sealing is the minimum gas that this leaks.
Rotatablely moving of star-wheel fastening flange (611 and 612) can be brought minimum gas in this fine clearance into and form air film, produce fluid lubrication effect, the friction loss that has guaranteed the surface of contact of star-wheel fastening flange and piston ring minimizes, and has realized the efficient low-consume rotation dynamic seal (packing) to cylindrical cavity.In addition, also it should be noted that, the pressure fluid leaking expansion piston ring axially in outside mineralization pressure gradient difference, the formed pressure gradient in low pressure gas tagma in the high pressure air tagma inside star-wheel fastening flange and outside is poor.Under the pressure pulse impact producing due to the intake and exhaust cyclically-varying of gas in cylinder body, the position of expansion piston ring (621 and 622) side has microscopic vibration and changes.
Owing to having fine clearance between expansion piston ring and star-wheel fastening flange, so both closely cooperate.In the process that the eccentric rotor assembly of taking turns at rolling piston rolls in cylindrical cavity, the star-wheel fastening flange fixing with it plays rotation with one, but expansion piston ring does not rotate with star-wheel fastening flange.Therefore, not relative movement between the inner cylinder face of the periphery of expansion piston ring and cylinder body, between the two also not friction.
Based on above discussing, those skilled in the art should understand the design of Lubrication Design-gas film lubrication or the fluid film lubrication design by expansion piston ring in the present embodiment and realize the concrete principle that non-contact seals.Please refer to Fig. 5, consider machining error and cost, in the preferred embodiment of the invention, the fine clearance Δ A of expansion piston ring and embedding groove sidewall meets: 0.05mm≤Δ A≤0.3mm, the fine clearance Δ B of this expansion piston ring and embedding groove bottom meets: 0.1mm≤Δ B≤0.3mm.Expansion piston ring is open piston ring, and its material is selected according to operating mode, as available centrifugal casting bell metal under high temperature, under normal temperature, adopts high tensile aluminium alloy etc.Below for applying the value in each gap in 5 prepared fluid motors of the present invention:
In First fluid motor, Δ A=0.05mm, Δ B=0.3mm, Δ C=0.3mm;
In second fluid motor, Δ A=0.08mm, Δ B=0.25mm, Δ C=0.25mm;
In the 3rd fluid motor, Δ A=0.1mm, Δ B=0.2mm, Δ C=0.2mm;
In the 4th fluid motor, Δ A=0.2mm, Δ B=0.1mm, Δ C=0.1mm;
In the 5th fluid motor, Δ A=0.3mm, Δ B=0.05mm, Δ C=0.08mm.
Experiment showed, the star-wheel fastening flange of these 5 fluid motors and the reliable sealing that expansion piston ring has all been realized circle tube cylinder, long time running is good, has reached predetermined performance parameter.It will be apparent to those skilled in the art that the parameter in these gaps is equally applicable to the fluid machinery of the other types such as motor, compressor and pump.
On the basis of above-described embodiment, the present invention also provides other several cylinder body seal assemblies.
In the first cylinder body seal assembly, in order to guarantee the reliable sealing in rolling piston wheel region, adopt 2 road expansion piston rings, as shown in Figure 6A, this 2 road expansion piston ring forms 2 grades of sealing surfaces, i.e. primary seal face shown in figure and secondary seal face.This kind of structure compared than the structure that only has primary seal face shown in Fig. 5, and its sealing effect is better.Certainly, those skilled in the art can arrange expansion piston Huan road number as required, for example: 3 roads, 4 roads, 5 roads.
In the second cylinder body seal assembly, between expansion piston ring and embedding groove, adopt labyrinth sealing, expansion piston ring inner ring surface and embedding groove bottom are intermeshing, thereby have optimized the effect of sealing.By way of example: the interior ring indention shape of expansion piston ring, and the bottom of embedding groove is also corresponding zigzag fashion, thus form flute profile sealing surface, as shown in Figure 6B.In addition, it will be understood by those skilled in the art that this zigzag fashion can also be irregular concaveconvex structure or striped, also can produce same effect.
In the third cylinder body seal assembly, the bottom of star-wheel fastening flange embedding groove and the interior ring of expansion piston ring are circular arc ball channel shape, and spherical ball is set between the two.Under the effect of gradient pressed gas, ball raceway groove can be because some distance lambda have been moved in position, and spherical ball is clamped, it is very little that small sealing between expansion piston ring inner circle and star-wheel fastening flange embedding groove bottom can be made owing to there being the reliable positioning supports of spherical ball of gap (about 0.1mm), improved sealed precision, and, the spherical ball clamping can produce radial pressure to expansion piston ring, makes it more be close to cylinder wall and fixes, as shown in Figure 6 C.In large-scale fluid machinery, the size of expansion piston ring and star-wheel fastening flange is all larger, and the gap of the inner headed face of expansion piston ring and star-wheel fastening flange embedding groove bottom is not easy to control very much, and adopts ball to be easier to address this problem.And the expansion piston ring of the cylinder body seal assembly of this type can also adopt sectional making, be particularly useful for the situation of large-scale fluid machinery.This spherical ball can be selected steel ball, and the material of the ball raceway groove of expansion piston ring and star-wheel fastening flange can reference bearing, uses material.
In the present embodiment, because rotor assembly is eccentric rotor assembly, in order to guarantee the dynamic balancing of whole star rotating type rotating device, must carry out in place counterweight.In slewing gear rotor assembly in the past, equilibrate counterweight is positioned at cylindrical cavity, is fixed on eccentric crankshaft or main shaft, and in the present embodiment, and star-wheel fastening flange provides suitable carrier for equilibrate counterweight.
Please refer to Fig. 4 A and Fig. 4 B, in the outside of star-wheel fastening flange, one side eccentric crankshaft lighter be symmetrical arranged equilibrate counterweight 630.It is incomplete circular that this equilibrate counterweight is generally, and by flange bent axle fixing pin, is fixed on eccentric crankshaft.
Than equilibrate counterweight, be positioned at the setting of the slewing gear of cylindrical cavity, the outside that equilibrate counterweight is disposed at seal operation space is conducive to dynamically balanced adjustment of later stage more.
So far, by reference to the accompanying drawings the present embodiment slewing gear be have been described in detail.According to above, describe, those skilled in the art should have clearly understanding to slewing gear of the present invention.The fluid mechanical device of several application the present embodiment slewing gears will be introduced below.
Fluid motor
In another exemplary embodiment of the present invention, also provide a kind of fluid motor.This fluid motor comprises above-mentioned slewing gear, and in this slewing gear, the second variable volume chamber is connected with high-pressure liquid import by second group of through hole; The first variable volume chamber is connected with low-pressure fluid outlet by first group of through hole; High-pressure liquid promotes eccentric rotor and rotates, and by main shaft, the moment of torsion of generation is passed to outside cylindrical cavity.
Please refer to Fig. 3 B and Fig. 3 C, slewing gear shown in it comprises the stopcock body resetting-mechanism that is applied to especially fluid motor and motor.The top of described pin blind hole is connected with second group of through hole by the first bypass, bottom by the second bypass with put groove and be connected, described elastic component is the high-pressure liquid entering in described pin hole.When rotor assembly rolls across the top of cylindrical space, stopcock body screws in put in groove completely, and the top of reset pin is positioned at the middle part of pin blind hole, by high-pressure liquid import with to put groove isolated.When rotor assembly rolls across behind the top of cylindrical space, under high-pressure liquid effect, reset pin moves downward, compressing stopcock body screws out from put groove, the tip motions of reset pin is to the bottom of pin blind hole, high-pressure liquid by second group of through hole, the first bypass, pin blind hole, the second bypass, put groove and enter the second variable volume chamber.
Below with reference to Fig. 7 A to Fig. 7 H, introduce the working stroke of the present embodiment fluid motor:
(1) in original state, eccentric rotor assembly rotates the top to cylindrical cavity, and pin is positioned at the inner side of pin hole, and stopcock body is placed in puts in groove completely, high-pressure liquid import and the isolation of crescent shape seal operation space, as shown in Figure 7 A;
(2) subsequently, under effect of inertia, rolling piston wheel rolls in the counterclockwise direction, the top of stray circle cylindrical cavity, pin moves downward from the inner side of pin hole, stopcock body screws out from putting in groove, high-pressure liquid import is communicated with crescent shape seal operation space, and the region being communicated with is increasing, working fluid is along high-pressure liquid import → the second group through hole → pin blind hole → put groove to enter the second volume space, in this process, high-pressure liquid promotes rolling piston wheel and rolls forward, as shown in Fig. 7 B to Fig. 7 H;
(3) rolling piston wheel rotated after one week, and rolling piston wheel rotates the top to cylindrical cavity, and as shown in Fig. 7 H, fluid motor is back to original state, with Fig. 7 A.
Fig. 9 A is the schematic diagram that the embodiment of the present invention comprises the fluid motor output torque of a slewing gear.As shown in Figure 9 A, the moment of torsion of this fluid motor output is not steady, exists the situation of output torque crest and trough, exists in some cases and starts dead point.
In another exemplary embodiment of the present invention, also provide a kind of fluid motor.This fluid motor comprises the above-mentioned slewing gear of catwalk that shares series connection, in arbitrary slewing gear of this catwalk slewing gear: second group of through hole is connected with high-pressure liquid import; First group of through hole is connected with low-pressure fluid outlet.The angle that in catwalk slewing gear, the phase angle θ of at least two slewing gears staggers is mutually greater than angle θ between critical zone
1, the phase angle θ of slewing gear refers to: from the high-pressure liquid expansion stroke in this cycle, and the angle that rotor assembly rotates in cylindrical cavity; Angle θ between critical zone
1refer to: between starting to start to the high-pressure liquid expansion stroke in this cycle from the low-pressure fluid discharge stroke in a upper cycle, the angle of rotor assembly required rotation in cylindrical cavity.Wherein, this θ
1value generally between 20 °～40 °.And preferably in embodiment, the angle that the phase angle θ of two slewing gears that in catwalk slewing gear, phase place is adjacent staggers is mutually 360/T in the present invention.For example: (1) take the fluid motor that comprises 2 slewing gears is example, and the phase angle θ of two slewing gears staggers 180 ° mutually; (2) take the fluid motor that comprises 3 slewing gears is example, and the phase angle θ of 3 slewing gears is at a time: 0 °, 120 °, 240 °.
Take and comprise that the fluid motor of 2 slewing gears that share same main shaft is example, its generalized section please refer to Fig. 8.In the fluid motor shown in Fig. 8, two slewing gears in left and right (A and B) are isolated by seal diaphragm C, phase shifting 180 degree of both rolling piston wheels, when the rolling piston of a slewing gear is taken turns the stopcock sheet valve region of process motor, piston rollers does not have thrust, and in dead point, but the piston rollers of another slewing gear of phase shifting 180 degree has thrust, and in moment of torsion maximum point, so just overcome starting dead unit problem.And, the synthetic moment of torsion of output of two eccentric crankshaft rolling star-wheels.
Fig. 9 B is the schematic diagram that the embodiment of the present invention comprises the fluid motor output torque of 2 slewing gears in parallel.Comparison diagram 9A and Fig. 9 B, can find out, comprises that the fluid motor output torque of 2 slewing gears in parallel is many stably, and there is no dead point.
So far, in conjunction with two embodiments, fluid motor of the present invention be have been described in detail.According to above, describe, those skilled in the art should have clearly understanding to fluid motor of the present invention.
Motor
In another exemplary embodiment of the present invention, a kind of motor is also provided, this motor comprises above-mentioned slewing gear, and in this slewing gear, the second variable volume chamber is connected with firing chamber by second group of through hole; The first variable volume chamber is connected with outlet port by first group of through hole.The pressurized gas that entered by firing chamber promote eccentric rotor assembly and roll along cylindrical cavity, and eccentric rotor assembly drives main shaft to rotate, and by main shaft, the moment of torsion of generation is passed to outside cylindrical cavity.
In like manner, the stopcock body resetting-mechanism in fluid motor embodiment can be applied to the present embodiment motor too.And the working stroke of the present embodiment motor and the working stroke of above-mentioned compressor are similar, what difference was only to promote eccentric rotor motion is not high-pressure liquid, but the high-pressure gas producing in firing chamber.
Equally, in order to guarantee motor output torque stably, avoid starting dead point, in another exemplary embodiment of the present invention, also provide a kind of motor.This motor comprises the above-mentioned slewing gear of S platform that shares same main shaft, S >=2 wherein, and structure is similar with the structure of introducing in fluid motor in detail for it, no longer repeats herein.
So far, by reference to the accompanying drawings the present embodiment motor be have been described in detail.According to above, describe, those skilled in the art should have clearly understanding to motor of the present invention.
Compressor
In another exemplary embodiment of the present invention, provide again a kind of compressor.In this compressor, this first variable volume chamber is suction chamber, and it is connected with low pressure compressed media inlet opening by second group of through hole; This second variable volume chamber is compression chamber, i.e. hyperbaric chamber, and it is connected by discharging exhaust port of high pressure compressed medium after first group of through hole and compression.Main shaft is passed to the moment of torsion outside cylindrical cavity in cylindrical cavity, by eccentric rotor assembly so that compressed media is compressed.
So far, by reference to the accompanying drawings the present embodiment compressor be have been described in detail.According to above, describe, those skilled in the art should have clearly understanding to compressor of the present invention.
Pump
In another exemplary embodiment of the present invention, provide again a kind of pump.In this pump, the first variable volume chamber is connected with fluid inlet by first group of through hole; The second variable volume chamber is connected with fluid output by second group of through hole.Main shaft is passed to the moment of torsion outside cylindrical cavity in cylindrical cavity; Under the drive of main shaft, rolling piston wheel rolls forward along cylindrical cavity, and the fluid being entered by fluid inlet is pumped into crescent shape seal operation space, so by fluid output by fluid expulsion.
So far, by reference to the accompanying drawings the present embodiment pump be have been described in detail.According to above, describe, those skilled in the art should have clearly understanding to pump of the present invention.
It should be noted that, slewing gear of the present invention and applying in motor, fluid motor, compressor and the pump of this slewing gear, the definition of each element is not limited in to various concrete structures or the shape of mentioning in mode of execution, those of ordinary skills can know simply and replace it.
In sum, the invention provides a kind of slewing gear and apply motor, fluid motor, compressor and the pump of this slewing gear, by the cooperation of star-wheel fastening flange and expansion piston ring, realized seal operation space at high frequency with without the reliable sealing under deep-fried twisted dough sticks part; And then proposed can realize fluid motor and the motor that fluid opens and closes stopcock sheet resetting-mechanism a kind of comprising, simplified mechanical structure, improved the working efficiency of slewing gear.
Above-described specific embodiment; object of the present invention, technological scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (32)
1. a slewing gear, is characterized in that, comprising:
Cylinder body, cylindrical;
Front/rear end cover, is sealedly attached to respectively the front/rear two ends of described cylinder body, forms a cylindrical cavity with cylinder body is common;
Main shaft, is supported the central axes of its central axis and described cylindrical cavity rotationally by described cylinder body and/or front/rear end cover;
Rotor assembly, is sheathed on the part that main shaft is positioned at described cylindrical cavity, forms axially extended seal operation space by rotating in described cylindrical cavity;
Interrupter, its end seals mutually with rotor assembly, thereby by described axially extended seal operation spatial separation, be separate, respectively by being arranged at first group of through hole and second group of the first variable volume chamber and the second variable volume chamber that through hole is connected with cylinder body outside on cylinder body; And
Cylinder body seal assembly, is positioned at the outside of rotor assembly described in described cylindrical cavity, comprising:
Two star-wheel fastening flanges, are arranged at respectively the outside of rotor assembly described in cylindrical cavity, and with described rotor assembly interlock, embedding groove is offered at the middle part of its external cylindrical surface;
Two expansion piston rings, are individually fixed in the described embedding groove of described two star-wheel fastening flange external cylindrical surfaces, are sealed and matched with cylinder body inner cylinder face, and the gap that there is pre-set dimension with bottom and the sidewall of described embedding groove; The micro fluid being leaked out by this gap forms fluid film under rotatablely moving of described star-wheel fastening flange drives, and this fluid film is realized the sealing of described cylindrical cavity.
2. slewing gear according to claim 1, is characterized in that: the gap of the side of described expansion piston ring and embedding groove sidewall, and the gap of the inner ring surface of described expansion piston ring and embedding groove bottom is all between 0.02mm～0.3mm.
3. slewing gear according to claim 2, is characterized in that: the clearance delta A of the side of described expansion piston ring and embedding groove sidewall meets: 0.05mm≤Δ A≤0.3mm; The clearance delta B of the inner ring surface of described expansion piston ring and embedding groove bottom meets: 0.1mm≤Δ B≤0.3mm.
4. slewing gear according to claim 3, is characterized in that, the clearance delta C of described star-wheel fastening flange external cylindrical surface and cylinder body inner cylinder face meets: 0.08mm≤Δ C≤0.3mm.
5. slewing gear according to claim 1, is characterized in that, the external cylindrical surface of described star-wheel fastening flange arranges N bar embedding groove; N expansion piston ring is arranged at respectively in this N bar embedding groove, described N >=2.
6. slewing gear according to claim 1, is characterized in that, between the inner ring surface of described expansion piston ring and embedding groove bottom, adopts labyrinth sealing.
7. slewing gear according to claim 6, is characterized in that, described expansion piston ring inner ring surface and embedding groove bottom are the flexuose of mutual coupling, irregular concavo-convex or striated.
8. slewing gear according to claim 1, is characterized in that, the inner ring surface of described expansion piston ring and embedding groove bottom are circular arc ball channel shape, and some spherical ball are set between the two.
9. slewing gear according to claim 1, is characterized in that, described expansion piston ring is open piston ring, and its material is bell metal or aluminum alloy.
10. slewing gear according to claim 1, is characterized in that, described interrupter is a kind of in following interrupter: stopcock chip interrupter, gate valve type interrupter, stopcock formula interrupter.
11. according to the slewing gear described in any one in claim 1 to 10, it is characterized in that, described rotor assembly is eccentric rotor assembly, comprising:
Eccentric crankshaft, is sheathed on the part that described main shaft is positioned at cylindrical cavity, and the central axis of its central axis and described main shaft is parallel to each other and staggers predeterminable range;
Rolling piston wheel, is sheathed on described eccentric crankshaft, fixes with described star-wheel fastening flange, and the central axes of its central axis and described eccentric crankshaft, this rolling piston wheel rolls along the inner cylinder face of described cylinder body;
At least one rolling bearing, be sheathed on symmetrically on described eccentric shaft, its inside race is fixed on described eccentric shaft, its outer collar is fixed on described rolling piston wheel, to completely cut off both rotations, pretension elastic force between this at least one rolling bearing and described rolling piston wheel is pressed in described rolling piston wheel in the inner cylinder face of described cylindrical cavity, makes to form between the inner cylinder face of described cylindrical cavity and the external cylindrical surface of rolling piston wheel axially extended crescent shape sealed chamber.
12. slewing gears according to claim 11, is characterized in that, described star-wheel fastening flange is the shape towards " L " at cylindrical cavity center;
Described two star-wheel fastening flanges are sheathed on described main shaft, and described eccentric crankshaft is sheathed on the inner side of both sides " L " shape star-wheel fastening flange.
13. slewing gears according to claim 12, is characterized in that, are positioned at the star-wheel fastening flange of the same side and eccentric crankshaft is one-body molded or respectively moulding.
14. slewing gears according to claim 12, is characterized in that, the inner side of described eccentric crankshaft arranges the shaft shoulder, and the inner ring of described rolling bearing is fixed on the described shaft shoulder of eccentric crankshaft;
Between the corresponding position of described rolling piston wheel side and its star-wheel fastening flange side, outside, and described in eccentric crankshaft, part and the rolling piston in shaft shoulder outside taken turns between the corresponding position of inner cylinder face, the labyrinth sealing of common formation " L " shape.
15. slewing gears according to claim 14, it is characterized in that, in the labyrinth sealing of described " L " shape, between the corresponding position of described rolling piston wheel end face and its star-wheel fastening flange side, outside, and described in eccentric crankshaft the part in shaft shoulder outside and the gap between corresponding position that rolling piston is taken turns inner cylinder face between 0.03mm～0.06mm.
16. slewing gears according to claim 11, is characterized in that, also comprise:
Equilibrate counterweight, is symmetrical arranged the outside of star-wheel fastening flange, one side that eccentric crankshaft is lighter.
17. slewing gears according to claim 11, is characterized in that, the eccentric amount e of described eccentric crankshaft is between R/8～R/5, and wherein R is the radius of cylinder body inner cylinder.
18. according to the slewing gear described in any one in claim 1 to 10, it is characterized in that, described rotor assembly is star rotary rotor assembly, comprising:
Center sun gear cylinder, is sheathed on main shaft, and the inner cylinder face of its external cylindrical surface and cylinder body forms annular piston space;
M cylindrical planetary piston wheel, in described annular piston space, roll, and this annular piston space is divided into M the seal operation space that part is annular, in this M cylindrical planetary piston wheel, the two ends of each are fixed with the described star-wheel fastening flange of both sides respectively.
19. 1 kinds of fluid motors, is characterized in that, comprise the slewing gear described in any one in claim 1 to 18, and second group of through hole of this slewing gear is connected with high-pressure liquid import; First group of through hole is connected with low-pressure fluid outlet.
20. fluid motors according to claim 19, is characterized in that, comprise the described slewing gear of the catwalk of series connection, described T >=2; In arbitrary slewing gear of this catwalk slewing gear: second group of through hole is connected with high-pressure liquid import; First group of through hole is connected with low-pressure fluid outlet;
The angle that in described catwalk slewing gear, the phase angle θ of at least two slewing gears staggers is mutually greater than angle θ between critical zone
1, the phase angle θ of described slewing gear refers to: from the high-pressure liquid expansion stroke in this cycle, and the angle that described rotor assembly rotates in described cylindrical cavity; Angle θ between described critical zone
1refer to: between starting to start to the high-pressure liquid expansion stroke in this cycle from the low-pressure fluid discharge stroke in a upper cycle, the angle that described rotor assembly rotates in described cylindrical cavity.
21. fluid motors according to claim 20, is characterized in that, the angle that the phase angle θ of two slewing gears that in described catwalk slewing gear, phase place is adjacent staggers is mutually 360/T.
22. fluid motors according to claim 19, is characterized in that, that described cylinder body inner side is formed with is one axially extended, towards cylindrical cavity, open wide put groove; In the bottom that puts groove, the position of side to described stopcock body, offers one and completely cuts off the pin blind hole of sealing with cylinder body outside; Described interrupter is stopcock chip interrupter, comprising:
Stopcock body, described in being fitted to, put in groove and by its rotating support, in predetermined angular range, swing, by described axially extended seal operation spatial separation, be separate the first variable volume chamber and the second variable volume chamber, its just facing to chamber be the second variable volume chamber, its back side towards chamber be the first variable volume chamber;
Stopcock body resetting-mechanism, for driving the end of described stopcock body to push down all the time the outer surface of described rotor assembly, comprising:
Reset pin, slidable sealing ground inserts in described pin hole;
Elastic component, is positioned at the pin hole of described reset pin inner side, and its end is connected to the afterbody of described reset pin, and the elastic force of generation makes to reset the end of pin along withstanding stopcock body towards the direction of rolling piston wheel.
23. fluid motors according to claim 22, is characterized in that, by stopcock body maximum stretch out the cylinder body radius of state lower end and perpendicular to the angle ω of the described cylinder body radius that puts groove central axis between 30 °～40 °.
24. fluid motors according to claim 22, it is characterized in that, the top of described pin blind hole is connected with second group of through hole by the first bypass, bottom by the second bypass with put groove and be connected, described elastic component is the high-pressure liquid entering in described pin hole;
When rotor assembly rolls across the top of cylindrical space, stopcock body screws in put in groove completely, and the top of reset pin is positioned at the middle part of pin blind hole, by high-pressure liquid import with to put groove isolated.
When rotor assembly rolls across behind the top of cylindrical space, under high-pressure liquid effect, reset pin moves downward, compressing stopcock body screws out from put groove, the tip motions of reset pin is to the bottom of pin blind hole, high-pressure liquid by second group of through hole, the first bypass, pin blind hole, the second bypass, put groove and enter the second variable volume chamber.
25. 1 kinds of motors, is characterized in that, comprise the slewing gear described in any one in claim 1 to 18, and second group of through hole of this slewing gear is connected with firing chamber; Described first group of through hole is connected with outlet port.
26. motors according to claim 25, is characterized in that, comprise the slewing gear described in the S platform of series connection, described S >=2; In arbitrary slewing gear of this S platform slewing gear: second group of through hole is connected with firing chamber; First group of through hole is connected with outlet port;
The angle that in described catwalk slewing gear, the phase angle θ of at least two slewing gears staggers is mutually greater than angle θ between critical zone
1, the phase angle θ of described slewing gear refers to: from the gas expansion for doing work stroke in this cycle, and the angle that described rotor assembly rotates in described cylindrical cavity; Angle θ between described critical zone
1refer to: between starting to start to the gas expansion for doing work stroke in this cycle from the waste gas discharge stroke in a upper cycle, the angle of described rotor assembly required rotation in described cylindrical cavity.
27. motors according to claim 26, is characterized in that, the angle that the phase angle θ of two slewing gears that in described catwalk slewing gear, phase place is adjacent staggers is mutually 360/T.
28. motors according to claim 26, is characterized in that, that described cylinder body inner side is formed with is one axially extended, towards cylindrical cavity, open wide put groove; In the bottom that puts groove, the position of side to described stopcock body, offers one and completely cuts off the pin blind hole of sealing with cylinder body outside; Described interrupter comprises:
Stopcock body, described in being fitted to, put in groove and by its rotating support, in predetermined angular range, swing, by described axially extended seal operation spatial separation, be separate the first variable volume chamber and the second variable volume chamber, its just facing to chamber be the second variable volume chamber, its back side towards chamber be the first variable volume chamber;
Stopcock body resetting-mechanism, for driving the end of described stopcock body to push down all the time the outer surface of described rotor assembly, comprising:
Reset pin, slidable sealing ground inserts in described pin hole;
Elastic component, be positioned at the pin hole of described reset pin inner side, its end is connected to the afterbody of described reset pin, and the elastic force of generation makes to reset the head of pin along withstanding stopcock body towards the direction of rolling piston wheel, makes described stopcock body in groove, screw out chamber from described putting.
29. motors according to claim 28, is characterized in that, by stopcock body maximum stretch out the radius of state lower end and perpendicular to the angle ω of the described cylinder body radius that puts groove central axis between 30 °～40 °.
30. motors according to claim 28, it is characterized in that, the top of described pin blind hole is connected with second group of through hole by the first bypass, bottom by the second bypass with put groove and be connected, described elastic component is the expanding gas entering in described pin hole;
When rotor assembly rolls across the top of cylindrical space, stopcock body screws in put in groove completely, and the top of reset pin is positioned at the middle part of pin blind hole, by high-pressure liquid import with to put groove isolated.
When rotor assembly rolls across behind the top of cylindrical space, under expanding gas effect, reset pin moves downward, compressing stopcock body screws out from put groove, the tip motions of reset pin is to the bottom of pin blind hole, expanding gas by second group of through hole, the first bypass, pin blind hole, the second bypass, put groove and enter the second variable volume chamber.
31. 1 kinds of compressors, is characterized in that, comprise the slewing gear described in any one in claim 1 to 18; Second group of through hole of this slewing gear is connected with low pressure compressed media inlet opening, and first group of through hole is connected with the exhaust port of high pressure compressed medium after compression.
32. 1 kinds of pumps, is characterized in that, comprise the slewing gear described in any one in claim 1 to 18; First group of through hole of this slewing gear is connected with fluid inlet; Second group of through hole is connected with fluid output.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310127518.7A CN104100299B (en) | 2013-04-12 | 2013-04-12 | Tumbler and apply its fluid motor, engine, compressor and pump |
| PCT/CN2014/075221 WO2014166431A1 (en) | 2013-04-12 | 2014-04-12 | Rotation device and corresponding fluid motor, engine, compressor and pump thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310127518.7A CN104100299B (en) | 2013-04-12 | 2013-04-12 | Tumbler and apply its fluid motor, engine, compressor and pump |
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| CN104100299A true CN104100299A (en) | 2014-10-15 |
| CN104100299B CN104100299B (en) | 2016-05-25 |
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| Country | Link |
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| CN (1) | CN104100299B (en) |
| WO (1) | WO2014166431A1 (en) |
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| CN106151025A (en) * | 2015-03-25 | 2016-11-23 | 姚镇 | Rotation system and apply its fluid motor, compressor, pump and electromotor |
| CN106468178A (en) * | 2015-08-21 | 2017-03-01 | 姚镇 | Application presses tumbler, rotation system and the fluid machinery of gate valve mechanism |
| CN106768566A (en) * | 2017-03-15 | 2017-05-31 | 广西大学 | A kind of friction measurement device of rolling piston compressor slide plate and chute |
| WO2017202346A1 (en) * | 2016-05-25 | 2017-11-30 | 姚镇 | Positioning and seal assembly and rotating system, fluid machine and rotating device using same |
| WO2017201895A1 (en) * | 2016-05-25 | 2017-11-30 | 姚镇 | Rotating system, and fluid motor, compressor, pump and engine using same |
| CN107489459A (en) * | 2016-06-13 | 2017-12-19 | 天津思高科技发展有限公司 | A kind of closed overall TRT of gas high pressure |
| WO2018027801A1 (en) * | 2016-08-11 | 2018-02-15 | 姚镇 | Rotating system, and fluid motor, compressor, pump and engine using same |
| CN108350882A (en) * | 2015-11-18 | 2018-07-31 | 雀巢产品技术援助有限公司 | Rotary compressor device |
| CN110332114A (en) * | 2019-06-10 | 2019-10-15 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor pump structure, assembly method and rotor compressor |
| CN111396367A (en) * | 2020-05-11 | 2020-07-10 | 山东省章丘鼓风机股份有限公司 | Drag-reducing wear-resistant slurry pump volute |
| CN111878389A (en) * | 2020-09-08 | 2020-11-03 | 青岛大学 | Internal combustion type swinging scraper pump |
| CN113383811A (en) * | 2021-07-01 | 2021-09-14 | 江西兆瑞机械设备制造有限责任公司 | Pig ketone body single-knife edge opening device |
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| CN106151025B (en) * | 2015-03-25 | 2018-04-20 | 北京星旋世纪科技有限公司 | Rotation system and apply its fluid motor, compressor, pump and engine |
| CN106151025A (en) * | 2015-03-25 | 2016-11-23 | 姚镇 | Rotation system and apply its fluid motor, compressor, pump and electromotor |
| CN106468178A (en) * | 2015-08-21 | 2017-03-01 | 姚镇 | Application presses tumbler, rotation system and the fluid machinery of gate valve mechanism |
| WO2017032271A1 (en) * | 2015-08-21 | 2017-03-02 | 姚镇 | Rotating apparatus and rotating system applying pressing gate valve mechanism, and fluid machinery |
| US11111918B2 (en) | 2015-08-21 | 2021-09-07 | Beijing Rostar Technology Co. Ltd. | Rotary device, rotary system, and fluid machinery, to which press-actuated gate valve mechanism is applied |
| CN106468178B (en) * | 2015-08-21 | 2018-06-08 | 北京星旋世纪科技有限公司 | Using the tumbler, rotation system and fluid machinery for pressing gate valve mechanism |
| US10823173B2 (en) | 2015-11-18 | 2020-11-03 | Societe Des Produits Nestle S.A. | Rotary compressor arrangement with stationary shaft with inlet and outlet and a cylindrical piston rotated by a satellite element |
| CN108350882A (en) * | 2015-11-18 | 2018-07-31 | 雀巢产品技术援助有限公司 | Rotary compressor device |
| WO2017202346A1 (en) * | 2016-05-25 | 2017-11-30 | 姚镇 | Positioning and seal assembly and rotating system, fluid machine and rotating device using same |
| WO2017201895A1 (en) * | 2016-05-25 | 2017-11-30 | 姚镇 | Rotating system, and fluid motor, compressor, pump and engine using same |
| CN107489459A (en) * | 2016-06-13 | 2017-12-19 | 天津思高科技发展有限公司 | A kind of closed overall TRT of gas high pressure |
| WO2018027801A1 (en) * | 2016-08-11 | 2018-02-15 | 姚镇 | Rotating system, and fluid motor, compressor, pump and engine using same |
| CN106768566A (en) * | 2017-03-15 | 2017-05-31 | 广西大学 | A kind of friction measurement device of rolling piston compressor slide plate and chute |
| CN106768566B (en) * | 2017-03-15 | 2023-05-05 | 广西大学 | Friction force measuring device for sliding vane and sliding chute of rolling piston compressor |
| CN110332114A (en) * | 2019-06-10 | 2019-10-15 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor pump structure, assembly method and rotor compressor |
| CN111396367A (en) * | 2020-05-11 | 2020-07-10 | 山东省章丘鼓风机股份有限公司 | Drag-reducing wear-resistant slurry pump volute |
| WO2021227263A1 (en) * | 2020-05-11 | 2021-11-18 | 山东省章丘鼓风机股份有限公司 | Resistance-reduction and abrasion-resistance slurry pump volute |
| CN111878389A (en) * | 2020-09-08 | 2020-11-03 | 青岛大学 | Internal combustion type swinging scraper pump |
| CN113383811A (en) * | 2021-07-01 | 2021-09-14 | 江西兆瑞机械设备制造有限责任公司 | Pig ketone body single-knife edge opening device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104100299B (en) | 2016-05-25 |
| WO2014166431A1 (en) | 2014-10-16 |
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