CN1211585C - Capacitance variable type mechanism used for compressors - Google Patents
Capacitance variable type mechanism used for compressors Download PDFInfo
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- CN1211585C CN1211585C CN 03114505 CN03114505A CN1211585C CN 1211585 C CN1211585 C CN 1211585C CN 03114505 CN03114505 CN 03114505 CN 03114505 A CN03114505 A CN 03114505A CN 1211585 C CN1211585 C CN 1211585C
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Abstract
The present invention relates to a capacitance variable type mechanism used for compressors. A spherical inner cavity (3) is provided with a piston (4), a rotary disk (5) and a main shaft (7), and the piston (4), the rotary disk (5) and the main shaft (7) are moving parts, wherein the piston (4) and the rotary disk (5) are hinged through a central pin (6) in a form of a cylinder surface hinge. An intersection angle alpha of the axis of a piston pin shaft (22) and the axis of the main shaft (7) and the intersection angle alpha of the axis of the piston pin shaft (22) and the axis of the main shaft (7) are equal, and the three axes all pass through the sphere center of the spherical inner cavity (3). The combination of mechanism space movements has the result that when the main shaft (7) is driven, the piston (4) and the rotary disk (5) carry out periodic corresponding swinging around the axis of the central pin (6). Because space movements are synthesized into the corresponding swinging, obvious moving elements causing vibration do not exist. When the main shaft is rotated for two rounds, working chambers V1 and V2 alternately carry out air suction, compression and exhaustion once respectively. The present invention has the advantages of no air inlet/exhaust valve, few moving members, little vibration, flexible operation, reliable sealing, etc.
Description
Technical field the invention belongs to a kind of variable volume mechanism, particularly a kind of a kind of variable capacity mechanism that can be used for devices such as compressor, motor, pump machines.
At present most widely used in the background technique positive displacement compressor is reciprocating-piston compressor, and its major defect is that vibrations are big, and revolution is not high, and the machine volume is big and heavy, and advantage is a good airproof performance, the exhaust pressure height.The outstanding advantage of rotary compressor is that vibrations are little, simple in structure, compact, and shortcoming is that sealing is poor, can only be used for certain discharge capacity and pressure range, the accuracy of manufacturing and the cost of certain structures are too high, and single stage compression does not reach higher pressure, for example scroll compressor.
Chinese patent had once been announced my patent application, application number is 85100200, a kind of notion of spherical positive displacement compressor has been proposed, but study in the further in-depth analysis to its spatial mechanism's motion, power and force analysis, sealing and lubricating condition and thermodynamic property subsequently through the claimant, think that this patent application has the following disadvantages and critical defect:
1, be connected by a rotating disk sphere pin between live axle and rotating disk, and rotating disk sphere pin is not limited with respect to the play of live axle crank inclined hole, thereby makes rotating disk sphere pin become an independently movement parts; In addition, piston is to contact by a sphere pin with being connected of cylinder body, this annexation makes does not have the axial constraint of determining between piston and the spherical piston pin, spherical piston pin itself can have the axial float of self, and the Placement between piston and the rotating disk is the mode of semicylinder, can't retrain both separation trends.By the motion analysis theory of spatial mechanism just as can be known, this scheme has been run counter to the design principle of spatial mechanism, moves interference easily, and individual part easily is the unordered action of multi-freedom degree, can't implement in practice, no engineering use value.
2, piston and rotating disk employing semicircle pin ways of connecting is wrong, when V1 and V2 have high-pressure medium, two parts have separation trend, and can't retrain, make all make deviation accumulation like this to this junction surface, thereby completely lose seal action, and cause the piston stress condition to worsen generation uncontrolled motion and stuck;
3, need Air Valve Control inlet and outlet process;
4,5 main movement parts are arranged in each ball chamber: piston, spherical piston pin, rotating disk, rotating disk sphere pin, live axle, number of spare parts is too much, and mechanism is too numerous and diverse;
5, adopt the mode of gear transmission power, efficient is low.
Summary of the invention purpose of the present invention is exactly a kind of a kind of novel variable capacity mechanism that can be used for compressor of design, overcome the shortcoming of above-mentioned compressor and number of patent application and be the defective of 85100200 open source literature, the compressor that adopts this novel variable capacity mechanism had not only been sealed reliably but also shake little, compact structure, running reliable, be easy to make and there is no intake/exhaust valve, efficient height.
Scheme one:
Design a kind of variable capacity mechanism that is used for compressor, comprise a cylinder body, cylinder cap, piston, rotating disk, centrepin, main shaft, spindle carrier; Cylinder body links to each other by screw with cylinder cap and forms a spherical inner chamber, one bearing saddle bore, a suction port and a relief opening are arranged on the cylinder cap, it is characterized in that: piston has spherical end face, the gudgeon pin shaft that stretches out from spherical end face, two wedge type block structures that angled side plane, import/exhaust passages and the piston pin boss in bottom, two sides constitute; Bi-side and on the import/exhaust passage serve as that axle becomes an axisymmetric with the center line of gudgeon pin shaft respectively; Bearing saddle bore on above-mentioned gudgeon pin shaft and the cylinder cap is matched by bearing, and the spherical end face of piston and above-mentioned spherical inner chamber are for sealing movingly, and piston can freely rotate around the center line of gudgeon pin shaft;
Rotating disk be shaped as billiard table shape, a rotating disk bearing pin is stretched out at the center of its rotating disk small end face, the land portions of rotating disk has the identical centre of sphere with above-mentioned spherical inner chamber and is close to spherical inner chamber and forms sealing movingly; On the rotating disk large end face, relative with piston pin boss should have a rotating disk key seat, and the cylinder pin hole axis of rotating disk key seat is by the centre of sphere of rotating disk land portions; And it is perpendicular with the axis of rotating disk bearing pin; The shape of rotating disk becomes axisymmetric with the axis of rotating disk bearing pin;
The cylinder key seat of the formation that centrepin insertion rotating disk key seat and piston pin boss match constitutes the cylinder hinge, and piston links to each other by the cylinder hinge with rotating disk, and the large end face of rotating disk and the hemispherical space of above-mentioned spherical inner chamber formation are divided into V1 of working room and the V2 of working room; For sealing movingly, cylinder hinge and the contacted both ends of the surface of above-mentioned spherical inner chamber and spherical inner chamber are for sealing movingly between centrepin, rotating disk key seat and the piston pin boss;
The axis of above-mentioned gudgeon pin shaft and rotating disk bearing pin and main shaft all passes through the centre of sphere of above-mentioned spherical inner chamber, and the axis of gudgeon pin shaft and rotating disk bearing pin forms identical angle α with the axis of main shaft;
Spindle carrier links to each other with cylinder body by screw, and for the rotation of main shaft provides support, main shaft can only be done rotatablely moving around main-shaft axis with respect to spindle carrier; One end of main shaft is an eccentric mechanism, and eccentric mechanism is positioned at cylinder body and links to each other with the rotating disk bearing pin, and the other end links to each other with power mechanism, for the compressor transfiguration provides power.
The wedge type block structure of described piston is: by the wedge type block structure that two angled phase cross surfaces and a spheres intersect form, this sphere and above-mentioned spherical inner chamber match and have just as the centre of sphere;
A cylindrical pin is stretched out at center at the spherical end face of piston, and the axis of this piston cylindrical pin is by the centre of sphere of the spherical end face of piston; Be connected with piston pin boss below the piston bi-side, the axis of the cylinder pin hole of this piston pin boss is through the centre of sphere of the spherical end face of piston, with the axis normal of gudgeon pin shaft and be positioned on the symmetrical separating surface of above-mentioned two-phase cross surface;
The cylindrical outer surface of above-mentioned sphere, intersecting plane and piston pin boss intersects the bi-side that form piston, and the import/exhaust passage of a recessed land portions is respectively arranged on the piston bi-side.
As the another kind of structural type of rotating disk, have on the large end face of described billiard table shape rotating disk one with piston side fovea superior under the corresponding outstanding projection cube structure of import/exhaust passage;
Relief opening on the above-mentioned cylinder cap and suction port are arranged for no air valve; Relief opening is in exhaust when a working room is compressed to certain state; Suction port is to begin air inlet behind working room's compression exhaust, and volume increases when acquiring a certain degree closes; Suction port and relief opening and being communicated with of two working rooms be by the spherical end face of piston and import/exhaust passage with finish successively during above-mentioned spherical inner chamber cooperates in relative rotation.
Scheme two:
Design a kind of variable capacity mechanism that is used for compressor, comprise a cylinder body, cylinder cap, piston, rotating disk, main shaft, spindle carrier; Cylinder body links to each other by screw with cylinder cap and forms a spherical inner chamber, one bearing saddle bore, a suction port and a relief opening are arranged on the cylinder cap, it is characterized in that: piston has spherical end face, the gudgeon pin shaft that stretches out from spherical end face, two angled side planes, import/exhaust passages and the wedge type block structure that constitutes in " Ω " of bottom, two sides type cylindrical shaft; Bi-side and on the import/exhaust passage serve as that axle becomes an axisymmetric with the center line of gudgeon pin shaft respectively; Bearing saddle bore on above-mentioned gudgeon pin shaft and the cylinder cap is matched by bearing, and the spherical end face of piston and spherical inner chamber are for sealing movingly, and piston can freely rotate around the center line of gudgeon pin shaft;
Rotating disk be shaped as billiard table shape, a rotating disk bearing pin is stretched out at the center of its rotating disk small end face, the land portions of rotating disk has the identical centre of sphere with above-mentioned spherical inner chamber and is close to spherical inner chamber and forms sealing movingly; On the rotating disk large end face, relative " C " type column sleeve that a band opening should be arranged with " Ω " type cylindrical shaft, the axis of " C " type column sleeve of band opening is by the centre of sphere of rotating disk land portions; And it is perpendicular with the axis of rotating disk bearing pin; The shape of rotating disk becomes axisymmetric with the axis of rotating disk bearing pin; Be somebody's turn to do cross section upper shed angle beta ∠ 180 degree of " C " type column sleeve (16);
" Ω " type cylindrical shaft of piston and " C " type column sleeve of the band opening of rotating disk match and form hinge and is connected, and the hemispherical space of rotating disk large end face and the formation of above-mentioned spherical inner chamber is divided into V1 of working room and the V2 of working room; For sealing movingly, hinge and the contacted both ends of the surface of above-mentioned spherical inner chamber and spherical inner chamber are for sealing movingly between " Ω " type cylindrical shaft and " C " type column sleeve;
The axis of above-mentioned gudgeon pin shaft and rotating disk bearing pin and main shaft all passes through the centre of sphere of above-mentioned spherical inner chamber, and the axis of gudgeon pin shaft and rotating disk bearing pin forms identical angle α with the axis of main shaft;
Spindle carrier links to each other with cylinder body by screw, and for the rotation of main shaft provides support, main shaft can only be done rotatablely moving around main-shaft axis with respect to spindle carrier; One end of main shaft is an eccentric mechanism, and eccentric mechanism is positioned at cylinder body and links to each other with the rotating disk bearing pin, and the other end links to each other with power mechanism, for the compressor transfiguration provides power.
The wedge type block structure of described piston is: by the wedge type block structure that two angled phase cross surfaces and a spheres intersect form, this sphere and above-mentioned spherical inner chamber match and have just as the centre of sphere;
A cylindrical pin is stretched out at center at the spherical end face of piston, and the axis of this piston cylindrical pin is by the centre of sphere of the spherical end face of piston; Be fastenedly connected with " Ω " type cylindrical shaft below the piston bi-side, axis that should " Ω " type cylindrical shaft is through the centre of sphere of the spherical end face of piston, with the axis normal of gudgeon pin shaft and be positioned on the symmetrical separating surface of above-mentioned two-phase cross surface;
The cylindrical outer surface of above-mentioned sphere, intersecting plane and " Ω " type cylindrical shaft intersects the bi-side that form piston, and the import/exhaust passage of a recessed land portions is respectively arranged on the piston bi-side.
As the another kind of structural type of rotating disk, have on the large end face of described billiard table shape rotating disk one with piston side fovea superior under the corresponding outstanding projection cube structure of import/exhaust passage;
Relief opening on the above-mentioned cylinder cap and suction port are arranged for no air valve; Relief opening is in exhaust when a working room is compressed to certain state; Suction port is to begin air inlet behind working room's compression exhaust, and volume increases when acquiring a certain degree closes; Suction port and relief opening and being communicated with of two working rooms be by the spherical end face of piston and import/exhaust passage with finish successively during above-mentioned spherical inner chamber cooperates in relative rotation.
Scheme one is different with structure and Connecting format that scheme two is removed piston and piston, rotating disk and rotating disk, and outside the no centrepin, design philosophy is all identical with other structures in the scheme two.
In actual applications, for further enhanced leaktightness can be as required, the part increase Sealing that matches with spherical cylinder body at the sphere of piston, rotating disk; At piston and hinged straight pin and key seat mating part, key seat and the key seat mating part increase Sealing of rotating disk.
Advantage of the present invention is:
1. have only piston, rotating disk and 3 main movement parts of main shaft, moving parts is few, compact structure; No inlet and outlet valve, gas compression clearance are zero in theory; Be the reliable cooperation that is connected between piston and rotating disk, piston and cylinder cap, rotating disk and main shaft, main shaft and the cylinder body, the part stress situation is better, and running is reliable, the single stage of pressure height;
2. surround active chamber part between cooperation be face contact, form good friction pair, reduced frictional loss; Good airproof performance has reduced leakage loss simultaneously; Be easy to realize running up;
3. do not have reciprocating part, the dynamic balancing characteristic is good, shakes little;
4. compare with most rotary compressors such as eddy type, it all be sphere, plane or the cylinder of rule that part needs precision machined position, and low cost of manufacture is easy to process.
Description of drawings
Fig. 1 is the structural drawing of first embodiment's variable capacity mechanism of the present invention;
Fig. 2 is the structural drawing of spherical inner chamber;
Fig. 3 is structure of piston figure among first embodiment;
Fig. 4 is the structural drawing of first embodiment's turntable;
Fig. 5 is the structural drawing of main shaft;
Fig. 6 is the structure and the annexation figure of piston and rotating disk in the second embodiment of the invention
Fig. 7 is piston structure figure among second embodiment;
Fig. 8 is second embodiment's turntable structural drawing;
Among the figure: 1 is cylinder body, and 2 is cylinder cap, and 3 is spherical inner chamber, 4 is piston, and 5 is rotating disk, and 6 is centrepin, 7 is main shaft, and 8 is spindle carrier, 9,10 is bearing, 11 is bearing (ball) cover, and 12 is piston, and 13 is screw, 14 are rotating shaft, 15 is rotating disk, and 16 is column sleeve, and 17 is spindle hole, 18 is relief opening, and 19 is suction port, and 20 is bearing saddle bore, 21 is the spherical end face of piston, and 22 is gudgeon pin shaft, and 23 is the side, 24 is piston pin boss, and 25 is the piston cylinder pin hole, and 26 is the rotating disk key seat, 27 is the rotating disk cylinder pin hole, and 28 is the rotating disk large end face, and 29 is the rotating disk sphere, 30 is the rotating disk small end face, 31 is the rotating disk bearing pin, and 32 are the import/exhaust passage, and 33 is spring flange, 34 is locking nut, withdrawing nut till 35.
Embodiment
First embodiment is to be at scheme two at one, the second embodiment of scheme.
First embodiment:
As shown in Figure 1 and Figure 2, a kind of variable capacity mechanism that is used for compressor comprises a cylinder body 1, cylinder cap 2, piston 4, rotating disk 5, centrepin 6, main shaft 7, spindle carrier 8; Cylinder body 1 links to each other by screw 13 with cylinder cap 2 and forms a spherical inner chamber 3, and a bearing saddle bore 20, a suction port 19, a relief opening 18 and a spindle hole 17 are arranged on the cylinder cap 2, and the axis of bearing saddle bore 20 is through the centre of sphere of spherical inner chamber 3; Piston 4 and rotating disk 5 are positioned at spherical inner chamber 3, and piston 4 forms the cylinder hinge with rotating disk 5 by centrepin 6 and is connected, and the part of the cylinder key seat of cylinder hinge is positioned on the piston 4, and another part is positioned on the rotating disk 5;
As shown in Figure 2, the mold joint of cylinder body 1 and cylinder cap 2 can be provided with the structure that some strengthen sealing and technology capability through the sphere centre of sphere of the spherical inner chamber that forms 3 on mold joint.In the practical application, can on the external engine body of cylinder body 1, be provided with as required attachment hole or connected element are installed.
As shown in Figure 3, piston 4 is by spherical end face 21, two wedge type block structures that angled side 23, import/exhaust passage 32 and the piston pin boss 24 in 23 bottoms, two sides constitute; Its structure characteristic is as follows: by two phase cross surface and wedge type block structures forming of a spheres intersect at angle, this sphere and spherical inner chamber 3 match and have just as the centre of sphere; A gudgeon pin shaft 22 is stretched out at center at the spherical end face 21 of piston, and the axis of gudgeon pin shaft 22 is by the centre of sphere of the spherical end face 21 of piston; The cylindrical outer surface of above-mentioned sphere, two-phase cross surface and piston pin boss 24 intersects the bi-side 23 that form piston 4, and the import/exhaust passage 32 of a recessed land portions is respectively arranged on piston bi-side 23; Bi-side and on import/exhaust passage 32 serve as that axle becomes an axisymmetric with the center line of gudgeon pin shaft 22;
Be connected with piston pin boss 24 below bi-side 23, the axis of the piston cylinder pin hole 25 of this piston pin boss 24 is through the centre of sphere of the spherical end face 21 of piston, with the axis normal of gudgeon pin shaft 22 and be positioned on the symmetrical separating surface of above-mentioned two-phase cross surface;
As Fig. 1, shown in Figure 4, rotating disk 5 is a billiard table shape, and a columniform rotating disk bearing pin 31 is stretched out at the center of its rotating disk small end face 30, and rotating disk sphere 29 has the identical centre of sphere and is close to spherical inner chamber 3 with spherical inner chamber 3; On rotating disk large end face 28, relative with piston pin boss 24 should have a rotating disk key seat 26, and the axis of the rotating disk cylinder pin hole 27 of rotating disk key seat 26 is by the centre of sphere of rotating disk sphere 29, and perpendicular with the axis of rotating disk bearing pin 31; The shape of rotating disk 5 becomes axisymmetric with the axis of rotating disk bearing pin 31;
Rotating disk key seat 26 matches with piston pin boss 24 and forms a cylinder key seat with sealing that connects sphere inner chamber 3 diameters; Constitute the cylinder hinge in the cylinder key seat that centrepin 6 insertion rotating disks 5 and piston 4 form, the end face of cylinder key seat and centrepin 6 and spherical inner chamber 3 contacts is sphere, match with spherical inner chamber 3 and have the identical centre of sphere, centrepin 6 is as the rotatingshaft of cylinder hinge, the centre of sphere of its axis by spherical inner chamber 3 is also perpendicular with the axis of gudgeon pin shaft 22, by the cylinder hinge piston 4 can freely be rotated around centrepin 6 with respect to rotating disk 5, piston 4 is divided into V1 of working room and the V2 of working room with the large end face of rotating disk 5 and the hemispherical space of spherical inner chamber 3 formation simultaneously;
Relief opening 18 on the cylinder cap 2 and suction port 19 no air valves; Relief opening 18 is in exhaust when a working room is compressed to certain state; Suction port 19 is in air inlet when beginning air inlet behind working room's compression exhaust, closes when volume increases to a certain degree; Suction port 19 and relief opening 18 and being communicated with of two working rooms be by the spherical end face 21 of piston with finish successively during spherical inner chamber 3 cooperates in relative rotation;
The shape of suction port 19 and relief opening 18 and Position Design will satisfy following principle on the cylinder cap 2, and just can realize does not have intake/exhaust valve work:
At first select reference system: observe the spherical end face 21 of piston from outside to inside along the axial direction of the bearing support mouth 20 on the cylinder cap 2, piston 4 was done and was clockwise rotated this moment; For convenience of description, relative position is identical with the sense of rotation of piston 4 before and after this sets.
One, to be distributed in the center line with bearing saddle bore 20 be that the radius of axis is respectively in the formed annular sphere of the surface of internal cavity zone of the cylndrical surface of R1 and R2 and cylinder cap 2 to the import/exhaust mouth on the cylinder cap 2, R1 is less than R2, but R2 can not greater than on import/exhaust passage 32 sides on the spherical end face 21 of piston apart from the distance in the axis solstics of gudgeon pin shaft 22, R1 can not be less than the radius in cylinder cap 2 upper bearing bracket holes 20;
Two, the position of suction port 19:
1. work as working room's air inlet and begin moment, with the spherical end face 21 of the corresponding piston in this working room
On import/exhaust passage 32 the front along with cylinder cap 2 internal surfaces on the back edge of suction port 19 tangent or overlap;
2. finish air inlet moment when this working room, with the front of suction port 19 on the back edge of import/exhaust passage 32 on the spherical end face 21 of the corresponding piston in this working room and cylinder cap 2 internal surfaces along tangent or overlap;
3. in the above whole process, relief opening 18 and this not conducting of working room on the cylinder cap 2.
Three, the position of relief opening 18:
1. be compressed to the exhaust of exhaust pressure working room and begin moment when medium, with the front of import/exhaust passage 32 on the spherical end face 21 of the corresponding piston in this working room along with cylinder cap 2 internal surfaces on the back edge of relief opening 18 tangent or overlap;
2. exhaust finishes moment, with the front of relief opening 18 on the back edge of import/exhaust passage 32 on the spherical end face 21 of the corresponding piston in this working room and cylinder cap 2 internal surfaces along tangent or overlap;
3. in the above whole process, suction port 19 and this not conducting of working room on the cylinder cap 2.
Spherical end face 21 of piston and rotating disk sphere 29 and cooperating of spherical inner chamber 3 be can relative movement the cooperation with sealability, cooperating between piston pin boss 24 and rotating disk key seat 25 in the above-mentioned cylinder hinge, piston pin boss 24 and centrepin 6, rotating disk key seat 25 and the centrepin 6 all is relatively turnable cooperations with sealing function;
The axis of the bearing pin 22 of above-mentioned piston and rotating disk bearing pin 31 and main shaft 7 all passes through the centre of sphere of spherical inner chamber 3, and the axis of gudgeon pin shaft 22 and rotating disk bearing pin 31 forms identical angle α with main shaft 7.
Main shaft 7 stretches out keyway that being partly with of spindle carrier 8 be connected with drive motor or other starting mechanism or screw thread etc., for preventing the axial float of main shaft 7, the inboard of the slip diameter of axle that matches at main shaft 7 and spindle carrier 8 is provided with a step, the outside by spring flange 33 and locking nut 34, end leg nut 35 and form a compressing structure; Main shaft 7 drives rotating disks 5 and rotates, and rotating disk 5 drives pistons 4 and rotates, and piston 4 rotates around gudgeon pin shaft 22 and the surface of being close to spherical inner chamber 3, makes two V1 of working room of formation and V2 is air-breathing successively, compression, exhaust, finishes compressor function; In 7 every two weeks of rotation of main shaft, V1 of working room and the V2 of working room finish once air-breathing and exhaust successively.Figure 1 shows that a working room reaches the state of maximum volume, another swept volume of a single chamber boil down to zero.
Second embodiment:
As Fig. 2, Fig. 5, Fig. 6, Fig. 7, shown in Figure 8, second embodiment of the present invention is except that the structure of piston 12 and rotating disk 15 and Placement and above-mentioned first embodiment's piston 4 and rotating disk 5 are different, second embodiment do not have centrepin 6, and other is all identical with first embodiment; Be illustrated in figure 6 as second embodiment's of the present invention piston and the long splice composition of rotating disk, the cylinder hinge that piston 4 and rotating disk 5 form by centrepin 6 is connected and is deformed into the match linkage structure of formation of " Ω " type cylindrical shaft 14 and " C " type column sleeve 16: piston 4 and rotating disk 5 are deformed into piston 12 and rotating disk 15 respectively, piston pin boss 24 and centrepin 6 are deformed into " Ω " type cylindrical shaft 14 jointly, the lower end of " Ω " type cylindrical shaft 14 and the bi-side 23 of former piston 4 is fastenedly connected and is axis with the center line of former piston cylinder pin hole 25, and the both ends of the surface of " Ω " type cylindrical shaft 14 and spherical inner chamber 3 surfaces are for sealing movingly; Rotating disk key seat 26 is deformed into " C " type column sleeve 16 of band opening, this " C " type column sleeve 16 serves as that axle matches in 28 formation of rotating disk large end face and with the rotating shaft of above-mentioned " Ω " type with the center line of former rotating disk cylinder pin hole 27, at the cross section upper shed angle beta ∠ of " C " type column sleeve 180 degree; Piston 12 constitutes sealed rotational by rotating shaft 14 on it and the column sleeve on the rotating disk 15 16 and cooperates.
Above-mentioned " C " type column sleeve 16 can be segmented at its axial direction, and " C " type opening direction of each section can be different;
Consider from stressed and sealing angle, in the practical application, the opening direction difference that is generally segmented and " C " type of " C " type column sleeve 16, the structure that matches of the opening of the root position setting that is connected with piston body in above-mentioned " Ω " type cylindrical shaft (14) and " C " type for this reason, make at piston (12) and rotating disk (15) when relatively rotating limit position, the top of " C " type column sleeve 16 can embed above-mentioned Ω fully " the rotating shaft root of type cylindrical shaft (14), and take the space.
No matter be to first embodiment or second embodiment, as rotating disk 5 or rotating disk 15, another kind of structure can also be arranged, with the recessed import/exhaust passage 32 on the piston side 23 is corresponding outstanding projection cube structure can arranged on the large end face 28 of described rotating disk 5 or rotating disk 15.With rotating disk 5 or when piston 12 and rotating disk 15 relatively rotate limit position, projection can embed in the intake and exhaust channel 32 of piston 4 or piston 12 this projection cube structure fully, and takes the space at piston 4.Its advantage is to guarantee that the working room fully compresses, compression clearance minimum.
For further reducing to compress clearance, among above-mentioned two embodiments, piston 4 or piston 12 bi-side adapt with the shape of the rotating disk large end face 28 of corresponding rotating disk 5 or rotating disk 15, and can fit fully when turning to limit position at piston and rotating disk.
Among first embodiment and second embodiment, piston 4 with rotating disk 5, piston 12 with the outstanding feature of the Placement of rotating disk 15 is: in compression process, separation trend between formed auxiliary connection energy confined piston 4 and rotating disk 5, piston 12 and the rotating disk 15, all the time guarantee effective sealing, and guarantee the smooth running of this spatial mechanism, antijamming capability is strong; The hinged bearing capacity of the cylinder that centrepin 6 is arranged among first embodiment is big, be suitable for that pressure is big, the higher compressor of load, rotating shaft 14 among second embodiment is relative less with the bearing capacity of the revolute pair that column sleeve 16 forms, but can reduce the leakage-gap of a circumferencial direction at least, better tightness.
The optimum range of the angle α size that the axis of above-mentioned gudgeon pin shaft 22 and rotating disk bearing pin 31 and the axis of main shaft 7 form is 10 to spend to 30 degree; The theoretical scope of the angle α that the axis of gudgeon pin shaft and rotating disk bearing pin and live axle form is 0 to 45 degree, and select for use 10 to spend to 30 degree and for optimum range following advantage is arranged: power performance is good, and the movement parts motion is steady; The stressing conditions of each main movement parts is better, is easy to structural design, and is not high to material, manufacture process requirement; The layout that helps the import/exhaust mouth does not need particular design, and guaranteeing does not have the advantage that intake/exhaust valve brings; Compact structure; Sealing, lubricated, cooling problem solve easily.
Piston 4 or piston 12, rotating disk 5 or rotating disk 15, cylinder body 1 and cylinder cap 2 are selected wear-resistant, ganoid material for use; Piston 4, rotating disk 5 and spherical inner chamber 3 have good sealing property for sphere contacts; The revolute pair that the hinged cylinder hinge of piston 4 and rotating disk 5, piston 12 and rotating disk 15 form since cylinder cooperate equally and can have good sealing property; But also can increase Sealing in its part that matches as required in actual applications; Increase Sealing with cylinder key seat mating part, piston pin boss 24 with rotating disk key seat 26 mating parts at piston 4 and rotating disk 5 hinged centrepins 6.
Variable capacity of the present invention mechanism also can be used for structures such as motor, pump machines except that can be applicable to compressor.
Claims (11)
1. a variable capacity mechanism that is used for compressor comprises a cylinder body (1), cylinder cap (2), piston (4), rotating disk (5), centrepin (6), main shaft (7), spindle carrier (8); Cylinder body (1) links to each other by screw (13) with cylinder cap (2) and forms a spherical inner chamber (3), and a bearing saddle bore (20), a suction port (19) and a relief opening (18) are arranged on the cylinder cap (2), it is characterized in that:
The wedge type block structure that gudgeon pin shaft (22), two angled sides (23), import/exhaust passage (32) and the piston pin boss (24) in bottom, two sides (23) that piston (4) has spherical end face (21), stretch out from spherical end face (21) constitutes; Bi-side (23) and on import/exhaust passage (32) serve as that axle becomes an axisymmetric with the center line of gudgeon pin shaft (22) respectively; Bearing saddle bore (20) on gudgeon pin shaft (22) and the cylinder cap is matched by bearing (10), and the spherical end face of piston (21) is to seal movingly with spherical inner chamber (3), and piston (4) can freely rotate around the center line of gudgeon pin shaft (22);
Rotating disk (5) be shaped as billiard table shape, a columniform rotating disk bearing pin (31) is stretched out at the center of its rotating disk small end face (30), rotating disk sphere (29) has the identical centre of sphere with spherical inner chamber (3) and is close to spherical inner chamber (3) and forms sealing movingly; On rotating disk large end face (28), relative with piston pin boss (24) should have a rotating disk key seat (26), and the axis of the rotating disk cylinder pin hole (27) of rotating disk key seat (26) passes through the centre of sphere of rotating disk sphere (29), and perpendicular with the axis of rotating disk bearing pin (31); The shape of rotating disk (5) becomes axisymmetric with the axis of rotating disk bearing pin (31);
Centrepin (6) insertion rotating disk key seat (26) constitutes the cylinder hinge with the cylinder key seat of the formation that piston pin boss (24) matches, piston (4) links to each other by the cylinder hinge with rotating disk (5), and rotating disk large end face (28) and the hemispherical space that spherical inner chamber (3) forms are divided into V1 of working room and the V2 of working room; For sealing movingly, contacted both ends of the surface of cylinder hinge and spherical inner chamber (3) and spherical inner chamber (3) are for sealing movingly between centrepin (6), rotating disk key seat (26) and the piston pin boss (24);
The axis of above-mentioned gudgeon pin shaft (22) and rotating disk bearing pin (31) and main shaft (7) all passes through the centre of sphere of spherical inner chamber (3), and the axis of gudgeon pin shaft (22) and rotating disk bearing pin (31) forms identical angle α with the axis of main shaft (7);
Spindle carrier (8) links to each other with cylinder body (1) by screw (13), and for the rotation of main shaft (7) provides support, main shaft (7) can only be done rotatablely moving around main-shaft axis with respect to spindle carrier (8); One end of main shaft (7) is an eccentric mechanism, and eccentric mechanism is positioned at cylinder body (2) and links to each other with rotating disk bearing pin (31), and the other end links to each other with power mechanism, for the compressor transfiguration provides power.
2. a variable capacity mechanism that is used for compressor comprises a cylinder body (1), cylinder cap (2), piston (12), rotating disk (15), main shaft (7), spindle carrier (8); Cylinder body (1) links to each other by screw (13) with cylinder cap (2) and forms a spherical inner chamber (3), and a bearing saddle bore (20), a suction port (19) and a relief opening (18) are arranged on the cylinder cap (2), it is characterized in that:
The wedge type block structure that gudgeon pin shaft (22), two angled sides (23), import/exhaust passage (32) and " Ω " type cylindrical shaft (14) in bottom, two sides (23) that piston (12) has spherical end face (21), stretch out from spherical end face (21) constitutes; Bi-side (23) and on import/exhaust passage (32) serve as that axle becomes an axisymmetric with the center line of gudgeon pin shaft (22) respectively; Bearing saddle bore (20) on gudgeon pin shaft (22) and the cylinder cap is matched by bearing (10), and the spherical end face of piston (21) is to seal movingly with spherical inner chamber (3), and piston (12) can freely rotate around the center line of gudgeon pin shaft (22);
Rotating disk (15) be shaped as billiard table shape, a columniform rotating disk bearing pin (31) is stretched out at the center of its rotating disk small end face (30), rotating disk sphere (29) has the identical centre of sphere with spherical inner chamber (3) and is close to spherical inner chamber (3) and forms sealing movingly; On rotating disk large end face (28), relative " C " type column sleeve (16) that a band opening should be arranged with " Ω " type cylindrical shaft (14), the axis of " C " type column sleeve (16) of band opening passes through the centre of sphere of rotating disk sphere (29), and perpendicular with the axis of rotating disk bearing pin (31); The shape of rotating disk (15) becomes axisymmetric with the axis of rotating disk bearing pin (31); Be somebody's turn to do cross section upper shed angle beta ∠ 180 degree of " C " type column sleeve (16);
" Ω " type cylindrical shaft (14) of piston (12) and " C " type column sleeve (16) of the band opening of rotating disk (15) match and form hinge and is connected, and the hemispherical space of rotating disk large end face (28) and above-mentioned spherical inner chamber (3) formation is divided into V1 of working room and the V2 of working room; For sealing movingly, hinge and the contacted both ends of the surface of above-mentioned spherical inner chamber (3) and spherical inner chamber (3) are for sealing movingly between " Ω " type cylindrical shaft (14) and " C " type column sleeve (16);
The axis of above-mentioned gudgeon pin shaft (22) and rotating disk bearing pin (31) and main shaft (7) all passes through the centre of sphere of spherical inner chamber (3), and the axis of gudgeon pin shaft (22) and rotating disk bearing pin (3 1) forms identical angle α with the axis of main shaft (7);
Spindle carrier (8) links to each other with cylinder body (1) by screw (13), and for the rotation of main shaft (7) provides support, main shaft (7) can only be done rotatablely moving around main-shaft axis with respect to spindle carrier (8); One end of main shaft (7) is an eccentric mechanism, and eccentric mechanism is positioned at cylinder body (2) and links to each other with rotating disk bearing pin (31), and the other end links to each other with power mechanism, for the compressor transfiguration provides power.
3. a kind of variable capacity mechanism that is used for compressor according to claim 1, the wedge type block structure that it is characterized in that described piston (4) is: by the wedge type block structure that two angled phase cross surfaces and a spheres intersect form, this sphere matches with spherical inner chamber (3) and has the identical centre of sphere;
A gudgeon pin shaft (22) is stretched out at center at the spherical end face of piston (21), and the axis of gudgeon pin shaft (22) is by the centre of sphere of the spherical end face of piston (21); The below of (23) is connected with piston pin boss (24) in bi-side, and the axis of the piston cylinder pin hole (25) of this piston pin boss (24) is through the centre of sphere of the spherical end face of piston (21), with the axis normal of gudgeon pin shaft (22) and be positioned on the symmetrical separating surface of above-mentioned two-phase cross surface;
The cylindrical outer surface of above-mentioned sphere, two-phase cross surface and piston pin boss (24) intersects the bi-side (23) that form piston (4), and the import/exhaust passage (32) of a recessed land portions is respectively arranged on piston bi-side (23);
4. a kind of variable capacity mechanism that is used for compressor according to claim 2, it is characterized in that: above-mentioned " C " type column sleeve (16) is a segmented at its axial direction, and " C " type opening direction difference of each section.
5. a kind of variable capacity mechanism that is used for compressor according to claim 1 and 2 is characterized in that: relief opening (18) on the cylinder cap (2) and the no air valve of suction port (19); Relief opening (18) is in exhaust when a working room is compressed to certain state; Suction port (19) is air-breathing in beginning behind working room's compression exhaust, closes when volume increases to a certain degree; Suction port (19) and relief opening (18) are to finish successively by the spherical end face (21) of piston, import/exhaust passage (32) and during the surface of spherical inner chamber (3) cooperates in relative rotation with being communicated with of two working rooms.
6. according to claim 1 or 3 described a kind of variable capacity mechanisms that are used for compressor, it is characterized in that: described rotating disk large end face (28) recessed import/exhaust passages (32) last and on piston side (23) are relative should outstanding projection cube structure; When relatively rotating limit position, projection can embed in the intake and exhaust channel (32) of piston (4) this projection cube structure fully, and takes the space at piston (4) and rotating disk (5).
7. according to claim 2 or 4 described a kind of variable capacity mechanisms that are used for compressor, it is characterized in that: at piston (12) and rotating disk (15) when relatively rotating limit position, the top of " C " type column sleeve (16) can embed above-mentioned Ω fully " the rotating shaft root of type cylindrical shaft (14), and take the space.
8. according to claim 2 or 4 described a kind of variable capacity mechanisms that are used for compressor, it is characterized in that: described rotating disk large end face (28) recessed import/exhaust passages (32) last and on piston side (23) are relative should outstanding projection cube structure; When relatively rotating limit position, projection can embed in the intake and exhaust channel (32) of piston (12) this projection cube structure fully, and takes the space at piston (12) and rotating disk (15).
9. according to claim 1 or 3 described a kind of variable capacity mechanisms that are used for compressor, it is characterized in that: the part that matches with spherical cylinder body at the sphere of piston (4), rotating disk (5) increases Sealing; Straight pin and key seat mating part, key seat and the key seat mating part hinged at piston (4) and rotating disk (5) have Sealing.
10. according to claim 2 or 4 described a kind of variable capacity mechanisms that are used for compressor, it is characterized in that: the part that matches with spherical cylinder body at the piston (12) and the sphere of rotating disk (15) increases Sealing; " Ω " type cylindrical shaft (14) and " C " type column sleeve (16) mating part have Sealing, Ω " type cylindrical shaft (14) has Sealing with the formed hinge both ends of the surface of " C " type column sleeve (16) with the part that spherical inner chamber (3) matches.
11. according to any one described a kind of variable capacity mechanism that is used for compressor of claim 1 to 4, it is characterized in that: the angle α magnitude range that the axis of above-mentioned gudgeon pin shaft (22) and rotating disk bearing pin (31) and the axis of main shaft (7) form is 10 to spend to 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03114505 CN1211585C (en) | 2003-02-24 | 2003-02-24 | Capacitance variable type mechanism used for compressors |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03114505 CN1211585C (en) | 2003-02-24 | 2003-02-24 | Capacitance variable type mechanism used for compressors |
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| CN1431400A CN1431400A (en) | 2003-07-23 |
| CN1211585C true CN1211585C (en) | 2005-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03114505 Expired - Lifetime CN1211585C (en) | 2003-02-24 | 2003-02-24 | Capacitance variable type mechanism used for compressors |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100400880C (en) * | 2006-09-15 | 2008-07-09 | 马丽莉 | Ball-shape compressor and expansion compressor capable of realizing multi-stage compression |
| JP5020327B2 (en) * | 2006-09-15 | 2012-09-05 | ▲ま▼ ▲り▼莉 | Multi-stage compressible spherical compressor and expansion compressor |
| CN101691864B (en) * | 2009-09-30 | 2011-08-24 | 马丽莉 | Spherical expansion compressor capable of adapting to variable working conditions |
| CN101929463B (en) * | 2010-08-26 | 2012-08-22 | 马丽莉 | Automatical compensation mechanism for sealing clearance of hinges used for spherical compressor |
| CN103147991B (en) * | 2013-03-26 | 2015-06-10 | 西安正安环境技术有限公司 | Turntable rotation synchronization mechanism used for spherical compressor |
| CN103835955B (en) * | 2014-03-18 | 2015-11-18 | 西安正安环境技术有限公司 | A kind of anti-jamming mechanism of spherical compressor rotor |
| CN105179197B (en) * | 2015-09-28 | 2017-04-19 | 西安正安环境技术有限公司 | Vehicle steering and brake integrated spherical oil-and-air pump |
| CN105782022B (en) * | 2016-04-26 | 2017-12-15 | 无锡博泰微流体技术有限公司 | Ball pump cooling body |
| CN110701040B (en) * | 2019-11-01 | 2023-12-01 | 深圳市球形动力科技有限公司 | Static pressure support for spherical pump rotor |
| CN113074068A (en) * | 2021-04-02 | 2021-07-06 | 浙江吉利控股集团有限公司 | Fuel supply system for vehicle, control method of fuel supply system and vehicle |
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2003
- 2003-02-24 CN CN 03114505 patent/CN1211585C/en not_active Expired - Lifetime
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