CN101886631B

CN101886631B - Parallel move rotor type capacity-varied device

Info

Publication number: CN101886631B
Application number: CN2010102600473A
Authority: CN
Inventors: 耿爱农; 陈君立; 阮勤江
Original assignee: Zhejiang Hongyou Compressor Manufacturing Co Ltd
Current assignee: Zhejiang Hongyou Compressor Manufacturing Co Ltd
Priority date: 2010-08-23
Filing date: 2010-08-23
Publication date: 2012-11-14
Anticipated expiration: 2030-08-23
Also published as: CN101886631A

Abstract

The invention belongs to the technical field of capacity-varied machinery and relates to a parallel move rotor type capacity-varied device. The device comprises a cylinder body, rotors and an end cover, wherein the cylinder body is provided with cylinders which are provided with circular arc shaped inner hole surfaces; the rotors are skewed in the cylinders and are provided with circular arc shaped cylindrical outer surfaces; the axes of the rotors are parallel to the axes of the cylinders and surround the axes of the cylinders to carry out fixed-axis rotation with the eccentricity as the radius. Besides, the device is provided with parallel move blades and sliding blades, wherein the parallel move blades and the rotors are tightly connected or are integrated; the cylinder body is provided with chutes; the sliding blades are provided with flat bodies and are in sliding fit with the chutes; the sliding blades are in dynamic seal fit with the parallel move blades; and the rotors and the parallel move blades carry out parallel move and rotation together. Compared with the prior art, the device thoroughly eliminates the leakage ways and disengaging between the parallel move blades and the rotors, thus reducing leakage loss. The device can serve as compressors, vacuum pumps, pneumatic pumps, water pumps, hydraulic pumps and hydraulic motors.

Description

The translational rotor variable-displacement equipment

Technical field

The invention belongs to the fluid machinery technical field, relate in particular to a kind of machinery of ability periodically-varied device working chamber volume, rely on the device of doing translation rotation and realizing transfiguration more specifically to a kind of rotor.

Background technique

The variable capacity device is one type of use machinery extremely widely; Comprise various compressors, vacuum pump, pneumatic pump, fluid pump and oil hydraulic motor or the like; It passes through the periodically-varied of working chamber volume to realize the variation in pressure or the mass transport of fluids such as gas or liquid; Wherein to have the minimum that variable-displacement equipment is taken up space of rotary rotor, in other words its structure is the compactest.In order to improve mechanical efficiency and operating life, existing technology CN201057149 has proposed a kind of rotator type gas compressing apparatus, and it comprises cylinder body, rotor, blade and end cap; Its rotor is biased in the cylinder; The tangent cooperation of circular inner hole face of the cylindrical outer surface of rotor and cylinder offers the chute of flat on the cylinder body, blade is flat and is fitted in slidably in the said chute; The back effect of blade has Returnning spring; The outer surface contact matching of the inner of blade and rotor, but by the outer surface of rotor, the inner hole surface of cylinder, the side of blade and air aspiration cavity and two active chambers of compression chamber that the end covers at two sides one common peripheral is configured to the volume periodically-varied, this technological greatest feature is that rotor does translation rotation; Therefore can effectively reduce the movement velocity of rotor, so can reduce friction and wear and tear with respect to the both sides end cap.Therefore but this device has two drawbacks: a drawback is that its blade and flat-moving rotor adopt the dynamic line way of contact, and it is reliable inadequately to cause this place to seal, and makes the gas of hyperbaric chamber very easily scurry and escapes to the low pressure air suction chamber; Another drawback is that its blade relies on the back pressure spring and compresses the contact flat-moving rotor, so when device was in high speed or frequency conversion running, usually the effect owing to inertial force took place by coming to nothing of blade and flat-moving rotor, can cause the leakage of gas equally.

Summary of the invention

The present invention provides a kind of translational rotor variable-displacement equipment, and its purpose is effectively to reduce on the one hand the blade of device and the leakage loss between the rotor, can eliminate the phenomenon of coming to nothing between blade and the rotor on the other hand.

The objective of the invention is to realize like this: the translational rotor variable-displacement equipment, it comprises cylinder body, rotor and end cap, offers cylinder on the said cylinder body; Said cylinder has the inner hole surface of a circular arc and has axial length; Rotor has the cylindrical outer surface of a circular arc and is biased in the cylinder, and the radius that the radius of cylinder bore face deducts the rotor cylindrical outer surface equals throw of eccentric, and the rotor axis of rotor is parallel with the cylinder-bore axis of cylinder and be that radius rotates around cylinder-bore axis with the throw of eccentric; It is characterized in that being provided with translation blade and sliding blade; Said translation blade and rotor are for being fastenedly connected or integral structure, and cylinder body is provided with chute, and said sliding blade has bluff body and is slidingly matched with chute; Sliding blade cooperates with the dynamic seal (packing) of translation blade, and rotor and translation blade are done translation rotation together.

The quantity of the cylinder on the above-mentioned cylinder body has more than two, and the quantity of said rotor is identical with the quantity of cylinder and dispose one by one with cylinder.

Have at least two rotors to be fastened together each other in the above-mentioned rotor by the translation blade.

Above-mentioned device is provided with the rotor bent axle, the coaxial setting of cylinder-bore axis of rotor crankshaft center line and institute's distribution cylinder, and the rotor bent axle cooperates with the rotor rotation of institute's distribution cylinder.

Be coaxially arranged with belt pulley, sprocket wheel or gear on the above-mentioned rotor bent axle, and correspondingly be provided with the synchronous operated belt of each rotor bent axle of constraint, chain or intermediate gear.

Above-mentioned belt pulley, sprocket wheel or gear have at least one to adopt cone match to be connected with corresponding rotor bent axle.

Above-mentioned belt pulley, sprocket wheel or gear are provided with equilibrium block.

Two rotors in the above-mentioned rotor adopt same translation blade to interconnect, and each translation blade correspondence is provided with a plurality of sliding blades and supporting chute thereof, are enclosed by translation blade, sliding blade, cylinder body and end cap fellowship to be configured to capacity-changing unit.

Above-mentioned device is provided with a power crank throw, and all rotor is all driven by said power crank throw.

One side of the rotor relative with above-mentioned sliding blade is provided with the face of dodging.

Be provided with auxiliary translation device between above-mentioned flat-moving rotor and the end cap.

Between the above-mentioned rotor and end cap, between translation blade and the end cap, between sliding blade and the end cap, between sliding blade and the chute, optionally be provided with seal element between sliding blade and the translation blade.

The quantity of above-mentioned cylinder body is more than two.

Cylinder on the same cylinder body of said apparatus has identical cylinder bore radius surface.

Cylinder on the same cylinder body of said apparatus has identical axial length.

Rotor on the same cylinder body of said apparatus has identical throw of eccentric.

Rotor between the different cylinder bodies of said apparatus has different throw of eccentric.

The purposes of translational rotor variable-displacement equipment can be used to make compressor, vacuum pump, pneumatic pump, water pump, oil hydraulic pump and oil hydraulic motor.

Translational rotor variable-displacement equipment of the present invention adopts the translation blade and rotor is fastenedly connected or be the mode of structure of integral production; Compared with prior art; Thoroughly eliminated the leak path between translation blade and the rotor; So can effectively reduce the leakage loss between blade and the rotor, the present invention has also eliminated the phenomenon of coming to nothing between translation blade and the rotor in addition, helps to reduce leakage loss equally.

Description of drawings

Fig. 1 is the structural representation sketch of translational rotor variable-displacement equipment of the present invention when having single cylinder single rotor and single translation blade;

View when Fig. 2 is rotor operation to four the otherwise limit position of translational rotor variable-displacement equipment shown in Figure 1;

Fig. 3 is the structural representation sketch of translational rotor variable-displacement equipment of the present invention when having single cylinder single rotor and two translation blade;

Fig. 4 is end face (removing end cap) the direction view that translational rotor variable-displacement equipment of the present invention is provided with auxiliary translation device;

Fig. 5 is the end cap of translational rotor variable-displacement equipment shown in Figure 4 and the axonometric drawing of partition ring;

Fig. 6 is that the axle when having two cylinder double rotors and single translation blade on the same cylinder body of translational rotor variable-displacement equipment of the present invention is surveyed schematic representation;

Fig. 7 is the structural representation sketch when having three cylinder triple-spools and three translation blades on the same cylinder body of translational rotor variable-displacement equipment of the present invention;

Fig. 8 is mechanism's simplified schematic diagram that translational rotor variable-displacement equipment of the present invention is provided with the run-in synchronism belt;

Fig. 9 is mechanism's simplified schematic diagram that translational rotor variable-displacement equipment of the present invention is provided with the run-in synchronism gear;

Figure 10 is the generalized section that translational rotor variable-displacement equipment of the present invention adopts the embodiment that different transfiguration modes make up.

Embodiment

With specific embodiment the present invention is further described below, referring to Fig. 1-10:

The translational rotor variable-displacement equipment; It comprises cylinder body 1, rotor 2 and end cap 3; Offer cylinder 4 on the said cylinder body 1; The inner hole surface 4a that said cylinder 4 has axial length and has a circular arc, rotor 2 have the cylindrical outer surface 2a of a circular arc, and rotor 2 is biased in the cylinder 4; The radius that the radius of the inner hole surface 4a of cylinder 4 deducts the cylindrical outer surface 2a of rotor 2 equals eccentric distance e; The rotor axis O2 of rotor 2 is parallel with the cylinder-bore axis O1 of cylinder 4 and be that radius rotates around cylinder-bore axis O1 with the eccentric distance e, and said end cap 3 is fitted in the both sides axle head of cylinder 4 and is fastened on the said cylinder body 1, and cylinder body 1 can be that a whole making also can be that fastening or build-in forms by the polylith parts; Characteristic of the present invention is: be provided with translation blade 5 and sliding blade 6; Said translation blade 5 is fastenedly connected with rotor 2 employings or translation blade 5 is integral production with rotor 2; Cylinder body 1 is provided with chute 7, and said sliding blade 6 has bluff body and is slidingly matched with chute 7, and sliding blade 6 is dynamically sealed with translation blade 5; Rotor 2 and translation blade 5 are done translation rotation together, and the cylindrical outer surface 2a of rotor 2 cooperates with the inner hole surface 4a of cylinder 4 is tangent; Notice that flat-moving rotor 2 and translation blade 5 adopts the working method of translations running, so translation blade 5 must have the swing of certain amplitude, the throw of eccentric that its full swing distance equals twice is 2e; For fear of interference, the inner hole surface 4a of cylinder 4 must reserve the breach that width is greater than or equal to 2e, and in other words the inner hole surface 4a of cylinder 4 is incomplete circular hole face; Be not difficult to find; Let sliding blade 6 can reduce the clearance volume of device near the cylinder-bore axis O1 of cylinder 4 as far as possible, thereby improve the volumetric efficiency of device, it is feasible letting sliding blade 6 invade within the cylinder 4 for this reason; At this moment should on the outer surface of rotor 2, be provided with and dodge face 2b; In case spline son 2 bumps with sliding blade 6, will mean that the cylindrical outer surface 2a of rotor 2 no longer is a complete cylindrical surface this moment, and the said face 2b that dodges can be plane, cylinder, shaped face or the various combinations between them; The optimised form of dodging face 2b is plane and parallel with cylinder-bore axis O1; So relatively help processing, certainly, the face 2b of dodging can also adopt other structural type; But correspondingly the part outer surface of chute on the cylinder body 17 and sliding blade 6 also must be made corresponding change, such as no longer parallel with cylinder-bore axis O1 or the like; Need to prove; Rotor 2 of the present invention and translation blade 5 realize that the method for translation has multiple; Such as retraining translation blade 5, sliding blade 6 and the slip end face 6a that can utilize slip work do translation rotation; Again such as auxiliary translation device can also be set between rotor 2 and end cap 3 retrain rotor 2 and do translation rotation, wherein auxiliary translation device can adopt cross slip ring parallel moving mechanism commonly used in existing technology such as the scroll compressor, pin to make up parallel moving mechanism or the like with hole combination parallel moving mechanism, steel ball and annular groove, can also adopt the parallelogram parallel moving mechanism in addition; Above-mentioned parallel moving mechanism both can use separately also can composite application; The schematic representation of the slip ring of the cross just parallel moving mechanism that Fig. 4 and Fig. 5 provide, wherein the two ends of partition ring 23 be respectively arranged with protruding key (23a, 23b); Protruding key 23a and protruding key 23b phase difference 180 degree that is they mutually are vertical each other; While is being provided with rotor rollaway nest 2c, end cap chute 3a is being set on end cap 3 on the rotor 2, protruding key 23a inserts in the end cap chute 3a and also is slidingly matched with it, protruding key 23b then inserts in the rotor rollaway nest 2c and also is slidingly matched with it, according to the working principle of cross slip ring; Above-mentioned rotor 2 must be done translation rotation under the constraint of partition ring 23; Rotor 2 drives translation blade 5 and does translation rotation simultaneously, and adopting auxiliary translation device to also have a benefit is greatly to alleviate the slip end face 6a of sliding blade 6 and the active force between the translation blade 5, therefore this is had positive meaning to the kinematic pair of bearing dynamic seal (packing); Need to prove in addition; The cylindrical outer surface 2a of the said rotor 2 of the present invention and the inner hole surface 4a of cylinder 4 be tangent to be cooperated and not to mean that and require them must keep in touch cooperation momently; But allow and have certain motion matching gap between them; The radius that the radius that is to say the inner hole surface 4a of the said cylinder 4 of the present invention deducts the cylindrical outer surface 2a of rotor 2 equals eccentric distance e and allows to exist certain error; To avoid as far as possible because of the rotor 2 of initiations such as foozle, assembly error and various stress deformation, temperature rise distortion and the mechanical collision of cylinder 4; In addition, when rotor 2 moves to sliding blade 6 hithermost positions and when neighbouring, also allow the cylindrical outer surface 2a of rotor 2 and the inner hole surface 4a of cylinder 4 of short duration coming to nothing to occur; Also need to prove; The axial length of said cylinder 4 is the cylinder height of indication on the traditional sense; It equates with the axial height of rotor 2, translation blade 5 and sliding blade 6, but allows to have certain size difference or matching gap, cooperates so that make them can do motion swimmingly; Need to prove at last; Can to be one group also can be many groups to said translation blade 5 among the present invention; So-called one group is meant that a rotor 2 joins a translation blade 5 (as shown in Figure 1); Much more so-called group is meant that a rotor 2 joins two above translation blades 5; Shown in Figure 3 is two groups of translation blades, and undoubtedly, the work of the more devices of group number is more steady but structure is also more complicated; In addition; Sliding blade 6 can adopt the integral blade structure also can adopt independent blade structure, and so-called integral blade structure is that sliding blade 6 has two slip end face 6a, and cooperate simultaneously with two chutes 7, the sliding-groove, this sliding-groove and the translation blade 5 that constitute a flat by two slip end face 6a be slidingly matched; So-called independent blade structure be sliding blade 6 have a slip end face 6a and only generally need keep contacting by auxiliary force or auxiliary device with 5 sealings of translation blade with a working surface sliding contact cooperation, the sliding blade 6 of translation blade 5, auxiliary force can be that the back pressure gas force also can be acting force of the spring or the like; The integral blade structure can be that integral production also can form with assembly is fastening, and typical integral blade structure such as Fig. 1 are extremely shown in Figure 3, typical independent blade structure such as Fig. 4, Fig. 6 and shown in Figure 7; It is emphasized that; Can on kinematic pair such as rotor 2/ end cap 3, translation blade 5/ end cap 3, sliding blade 6/ end cap 3, sliding blade 6/ chute 7, sliding blade 6/ translation blade 5, seal element be set in order to reduce leakage; As on the rotor 2 and with end cap 3 do end face that motion cooperates, on the translation blade 5 and with end cap 3 do side that motion cooperates, on the sliding blade 6 and with end cap 3 do side that motion cooperates, on the sliding blade 6 and with chute 7 do to move the side that cooperates, on sliding blade 6 and with the translation blade 5 works positions such as slip end face 6 that cooperate of moving, seal element is set; Can select above-mentioned kinematic pair to carry out the setting of seal element in whole or in part according to reality; So-called seal element is the various seal elements of available technology adopting; Like Stamping Steel Ribbon, seal ring and sealing block etc., its material can be the sealing material that various existing technology adopted that comprises teflon, filling teflon, composite material, cast iron; Working principle of the present invention is: when rotor 2 and translation blade 5 are done translation rotation; Sliding blade 6 is being followed along the dynamic seal (packing) of chute 7 slips and maintenance and translation blade 5; Enclosing two active chambers that are configured to variable-displacement equipment by the outer surface of the outer surface of the inner hole surface 4a of the cylindrical outer surface 2a of rotor 2, cylinder 4, sliding blade 6, translation blade 5 and end cap 3 fellowships is suction chamber 8 and discharge side 9; State when Fig. 2 (a), Fig. 2 (b), Fig. 2 (c) and Fig. 2 (d) have provided rotor 2 respectively and move to limes superiors position, limit on the right-right-hand limit position, limit inferior position and limit on the left position respectively; Be not difficult to find; The volume of suction chamber 8 constantly increases extraneous working medium and is inhaled into; Meanwhile working medium of constantly reducing in it of the volume of discharge side 9 is discharged from, and notices that translation blade 5 and rotor 2 adopt to be fastenedly connected or they are integral production, thus thoroughly shutoff or eliminated the leak path between them; And thoroughly eliminated the phenomenon of coming to nothing between translation blade 5 and the rotor 2; So compare with existing technology CN201057149, the working medium that the present invention can not only effectively reduce in the discharge side 9 is scurried the leakage rate of escaping to suction chamber 8, but also has higher functional reliability.

When the discharge capacity of translational rotor device is big, no matter be the size through strengthening component or realize through the rotating speed that improves device, all will inevitably increase the centrifugal inertia force of translation blade 5; To strengthen thus that translation blade 5 gets loose even by drawing crack or the probability broken; Will cause occurring between translation blade 5 and the rotor 2 leaking in case this situation occurs, the serious device that also can cause damages, for fear of above-mentioned phenomenon occurring; The present invention adopts the multi cylinder structure: one is that a plurality of cylinders are set on the same cylinder body; Another is a plurality of cylinder bodies to be set to increase cylinder number, can the motion size of device effectively be dwindled like this, thereby improve the force-bearing situation of translation blade 5; And then the functional reliability of raising device, division is following:

1) quantity of the cylinder 4 of translational rotor variable-displacement equipment of the present invention on same cylinder body has two or more; The cylinder-bore axis O1 of each cylinder 4 can be parallel also can be not parallel; Be the best wherein to laterally arrange; Because have best processing technology and assembly technology like this, the quantity of the quantity of rotor 2 and cylinder 4 is identical and carry out configuration one by one with cylinder 4 in addition; Need to prove; Each rotor 2 can partly or entirely adopt translation blade 5 to be fastened together each other; Both can translation blade 5 of two rotors, 2 usefulness wherein directly be fastenedly connected each other (as shown in Figure 6) and also can translation blade 5 fastening tandems to the transition piece 13a that two rotors 2 are wherein joined have been gone up (as shown in Figure 7); When rotor 2 interconnects through translation blade 5; Each rotor 2 must all equate with the eccentric distance e of institute distribution cylinder 4; Otherwise the phenomenon that movement interference can occur, and not constituting each other when being rigidly connected that is separate when each rotor 2 and translation blade 5 thereof, then the eccentric distance e that had of each separate rotor 2 can be unequal; It is worthy of note that the radius of the inner hole surface 4a of each cylinder 4 can all equate also can partly equate can also be unequal entirely, adopt equal radii to be convenient to processing and assembling, the radius difference then helps realizing multistage capacitance-variable; In addition, the axial length of each cylinder can all equate also can partly equate and can also all not wait, and adopts equal length to be convenient to processing and assembling, and the length difference then helps realizing multistage capacitance-variable; Implementing multistage capacitance-variable is necessary sometimes; Can effectively improve the degree of vacuum of suction such as plural serial stage when device is vacuum pump; Can realize the compression of high multiple again such as plural serial stage when device is compressor, well-known, adopt multistage capacitance-variable still to reduce effective measures of device internal leakage; Because the pressure reduction between the unit at different levels is greatly diminished, so its internal working medium leakage rate reduces; Also it is pointed out that rotor bent axle 10 can be set the coaxial setting of cylinder-bore axis O1 of the rotor crankshaft center line of rotor bent axle 10 and institute distribution cylinder 4; Rotor bent axle 10 is rotatably assorted with the rotor 2 of institute's distribution cylinder 4; The rotor crankshaft center line is to constitute parallel-crank mechanism easily with the benefit of the coaxial setting of cylinder-bore axis O1 of corresponding cylinder 4, and to realize the translation rotation of rotor 2 and translation blade 5, the typical structure of rotor bent axle 10 is representative (referring to Fig. 6) with the crank pin structure; Each rotor bent axle 10 all includes crank pin 10a in Fig. 6; The coaxial setting of rotor axis O2 of the bearing pin axis of crank pin 10a and respective rotor 2, rotor 2 directly or through bearing indirectly rotating sleeve be contained on the crank pin 10a, thereby realize being rotatably assorted of rotor 2 and rotor bent axle 10; Need to prove especially; Said rotor bent axle 10 and crank pin 10a not only comprise traditional crank throw structural type and crank pin structure form among the present invention, also comprise capacity eccentric bearing structure class form, that is rotor 2 can cooperate (not shown) with the rotor bent axle rotationally through capacity eccentric bearing or eccentric journal; In addition; Rotor bent axle 10 among the present invention does not also require it and cylinder 4 must dispose one by one, but the quantity of rotor bent axle 10 both can equal also can be less than the quantity of cylinder 4, when the quantity of cylinder 4 during more than two; Even the quantity of rotor bent axle 10 adopts two uniqueness that also can guarantee the device motion; Three cylinder variable-displacement equipment with shown in Figure 7 are example, and after wherein any two cylinders 4 disposed rotor bent axle 10, a remaining cylinder 4 both can dispose also and can not dispose rotor bent axle 10; Three of this machine translation blade 5 fastening tandems just can have been confirmed the translational motion rule of 4 dispensing rotors 2 of remaining cylinder behind transition piece 13a in fact; Even event device shown in Figure 7 only disposes two rotor bent axles 10 and also is fine, and can also reduce the amount of parts of device like this, help reducing cost; For the ease of transmitting moving and power; Can be on said rotor bent axle 10 coaxial belt pulley 11a or sprocket wheel or the gear 12a of being provided with; And correspondingly be provided with the constraint each rotor bent axle 10 synchronous operated belt 11b or chain or intermediate gear 12b; In addition, can also on described belt pulley 11a or sprocket wheel or gear 12a, the equilibrium block (not shown) be set in passing; What Fig. 8 (a) provided is the situation with two belt pulley 11a; What Fig. 8 (b) provided is the situation with three belt pulley 11a, in order to keep the transmission of motion phase accurately at work, Idle wheel 11c can be set; What Fig. 9 (a) provided is the situation with two gear 12a and single intermediate gear 12b; What Fig. 9 (b) provided is the situation with three gear 12a and single intermediate gear 12b, need to prove, belt pulley of the present invention transmits layout and the gear transmission layout also has kinds of schemes; And be not confined to such scheme, just do not outline one by one at this; For the ease of assembling; Described belt pulley 11a or sprocket wheel or gear 12a should have at least one to adopt cone match to be connected with corresponding rotor bent axle 10; Because the multi cylinder structure is very high to matching requirements; And adopt the cone match can be so that regulate the angular phase of respective rotor 2, thus improve the accuracy of parallel-crank mechanism, make that the motion of device is more reliable; Obviously; After adopting rotor bent axle 10 organization plans, power and motion can be from one of them rotor bent axle 10 inputs, that is this is as the driving link of device and other rotor bent axle 10 is a driven member; A power crank throw 13 (as shown in Figure 7) can also be set in addition; Part or all of rotor 2 and the translation blade 5 of being joined are driven by this power crank throw 13, and the axes O 3 of said power crank throw 13 is parallel with cylinder-bore axis O1, obviously; In order to satisfy the uniqueness of motion, the turning radius r of said power crank throw 13 must equal the eccentric distance e of the rotor 2 of its driving.

2) quantity of the cylinder body 1 of translational rotor variable-displacement equipment of the present invention adopts two or more, and the quantity of the cylinder 4 that is provided with on each cylinder body 1 has one at least, disposes corresponding rotor 2 in each cylinder 4 one by one; It is worthy of note; The inner hole surface 4a of the cylinder 4 on same cylinder body and different cylinder body can have identical radius also can have radius inequality; Its processing and assembling are the most convenient when the inner hole surface 4a of whole cylinders 4 has same radius; Because at this moment frock, measurer and number of parts can be minimum, the incomplete same even complete then convenient multistage capacitance-variable of implementing when inequality when their radius is because the discharge capacity of each cylinder is not quite similar under same rotating speed; Likewise, the cylinder 4 on the same cylinder body has identical axial length can conveniently be processed and assemble, and it then is another effective measures of implementing multistage capacitance-variable that cylinder 4 has different axial lengths; In addition; Rotor 2 on same cylinder body and the different cylinder body can all have identical eccentric distance e, and is favourable to processing and assembling like this, certainly; Eccentric distance e between different cylinder bodies can be different; Eccentric distance e on the same cylinder body can be identical also can be inequality, similar with the front, the eccentric distance e between different cylinder bodies is not realized multistage capacitance-variable simultaneously easily; Also it is to be noted; When device is the multi-cylinder body; Each cylinder body 1 can adopt parallelly connected layout also can adopt series arrangement; So-called parallelly connected layout is meant that the cylinder-bore axis O1 of the cylinder 4 on the different cylinder bodies is parallel to each other and has a determining deviation, so-called series arrangement is to refer to that cylinder-bore axis O1 on the different cylinder bodies has at least coaxial and each cylinder body to have certain interval at axial direction.

The scheme that another increases the device discharge capacity of the present invention is shown in figure 10; It is that (A B) realizes, said capacity-changing unit (A through increasing new capacity-changing unit again on the basis of described in front transfiguration principle; Two active chambers of formation B) and aforementioned variable-displacement equipment are that suction chamber 8 is different with discharge side 9; It is to utilize cylinder body 1, translation blade 5, sliding blade 6 and end cap 3 fellowships to enclose structure to form, and obviously, present embodiment must have on the basis of plural rotor 2 and plural cylinder 4 and could implement; And a plurality of slide plates 6 and corresponding chute 7 need be set, two rotors 2 are connected by a translation blade 5 simultaneously simultaneously; The working principle of present embodiment is: translation blade 5 is followed rotor 2 and is done translation rotation together; Simultaneously sliding blade 6 is also followed in chute 7 and is done reciprocating linear motion, and sliding blade 6 keeps in movement process and being sealed and matched of translation blade 5 (allow to exist because of of short duration and come to nothing or small leakage phenomenon that foozle or assembly error cause), obvious running along with translation blade 5; Capacity-changing unit (A; B) volume periodically becomes big and diminishes, and wherein the transfiguration rule of the transfiguration rule of capacity-changing unit A and capacity-changing unit B just in time differs 180 degree, that is they are anti-phases; The volume of capacity-changing unit B then diminished when capacity-changing unit A volume became big in other words; Vice versa, and the formation of suction chamber 8 and discharge side 9 and transfiguration principle are just no longer discussed with aforementioned the same here in addition; It is to be noted; Present embodiment can also be realized multistage capacitance-variable easily; The discharge side 9 of the transfiguration active chamber that constitutes respectively such as two rotors 2 and cylinder 4 just can be communicated with the intakeport of capacity-changing unit A and capacity-changing unit B respectively; Perhaps capacity-changing unit A and capacity-changing unit B also are communicated with the suction chamber 8 of two transfiguration active chambers respectively, and the approach that wherein is communicated with can carry out (not shown) through transition passage or spatial transition and one-way valve, through suitable design capacity-changing unit (A; B) with the volume ratio of suction chamber 8 or discharge side 9, just can obtain desirable multistage capacitance-variable effect; Need to prove; Translation blade 5 can be that bluff body also can be an obform body; Be the plane wherein and be parallel to each other and be the best that when it was obform body, cylinder body 1 must be made the shaped face that adapts with it with its two working surfaces (promptly making the face that cooperates) with the slip end face 6a of sliding blade 6.

The purposes of translational rotor variable-displacement equipment of the present invention can be used to make compressor, vacuum pump, pneumatic pump, water pump, oil hydraulic pump and oil hydraulic motor.

In sum, translational rotor variable-displacement equipment of the present invention adopts the translation blade and rotor is fastenedly connected or be the mode of structure of integral production, has therefore thoroughly eliminated the leak path between translation blade and the rotor and the phenomenon of coming to nothing, so can reduce leakage loss.

The foregoing description is merely some preferred embodiments of the present invention, is not to limit protection scope of the present invention according to this, so: all various equivalences of doing according to structure of the present invention, shape, principle change, and all should be covered by within protection scope of the present invention.

Claims

1. the translational rotor variable-displacement equipment comprises cylinder body, rotor and end cap, offers cylinder on the said cylinder body; Said cylinder has the inner hole surface of a circular arc and has axial length; Rotor has the cylindrical outer surface of a circular arc and is biased in the cylinder, and the radius that the radius of cylinder bore face deducts the rotor cylindrical outer surface equals throw of eccentric, and the rotor axis of rotor is parallel with the cylinder-bore axis of cylinder and be that radius rotates around cylinder-bore axis with the throw of eccentric; It is characterized in that being provided with translation blade and sliding blade; Said translation blade and rotor are for being fastenedly connected or integral structure, and cylinder body is provided with chute, and said sliding blade has bluff body and is slidingly matched with chute; Sliding blade cooperates with the dynamic seal (packing) of translation blade; Rotor and translation blade are done translation rotation together, and the quantity of the cylinder on the said cylinder body has more than two, and the quantity of said rotor is identical with the quantity of cylinder and dispose one by one with cylinder; Plural rotor is fastened together by the translation blade each other, and each rotor equates with the throw of eccentric of institute's distribution cylinder.

2. translational rotor variable-displacement equipment according to claim 1 is characterized in that being provided with the rotor bent axle, the coaxial setting of cylinder-bore axis of rotor crankshaft center line and institute's distribution cylinder, and the rotor bent axle cooperates with the rotor rotation of institute's distribution cylinder.

3. translational rotor variable-displacement equipment according to claim 2 is characterized in that on said rotor bent axle, being coaxially arranged with belt pulley, sprocket wheel or gear, and correspondingly is provided with the synchronous operated belt of each rotor bent axle of constraint, chain or intermediate gear.

4. translational rotor variable-displacement equipment according to claim 3 is characterized in that described belt pulley, sprocket wheel or gear are provided with equilibrium block.

5. translational rotor variable-displacement equipment according to claim 4 is characterized in that described belt pulley, sprocket wheel or gear have at least one to adopt cone match to be connected with corresponding rotor bent axle.

6. according to each described translational rotor variable-displacement equipment in the claim 2 to 5; It is characterized in that two rotors in the said rotor adopt same translation blade to interconnect; Each translation blade correspondence is provided with a plurality of sliding blades and supporting chute thereof, is enclosed by translation blade, sliding blade, cylinder body and end cap fellowship to be configured to capacity-changing unit.

7. according to each described translational rotor variable-displacement equipment in the claim 2 to 5, it is characterized in that being provided with a power crank throw, all rotor is driven by this power crank throw, and the turning radius of said power crank throw equals the throw of eccentric of its rotor that drives.

8. according to each described translational rotor variable-displacement equipment in the claim 1 to 5, it is characterized in that a side of the rotor relative with said sliding blade is provided with the face of dodging.

9. according to each described translational rotor variable-displacement equipment in the claim 1 to 5, it is characterized in that between flat-moving rotor and end cap, being provided with auxiliary translation device.

10. according to each described translational rotor variable-displacement equipment in the claim 1 to 5, it is characterized in that between said rotor and the end cap, between translation blade and the end cap, between sliding blade and the end cap, between sliding blade and the chute, optionally be provided with seal element between sliding blade and the translation blade.

11. according to each described translational rotor variable-displacement equipment in the claim 1 to 5, the quantity that it is characterized in that said cylinder body is more than two.

12. translational rotor variable-displacement equipment according to claim 11 is characterized in that the cylinder on the same cylinder body has identical cylinder bore radius surface.

13. translational rotor variable-displacement equipment according to claim 11 is characterized in that the cylinder on the same cylinder body has identical axial length.

14. translational rotor variable-displacement equipment according to claim 11, the rotor on it is characterized in that between the different cylinder bodies has different throw of eccentric.

15. the purposes of translational rotor variable-displacement equipment as claimed in claim 1 can be used for making compressor, vacuum pump, pneumatic pump, oil hydraulic pump or oil hydraulic motor.