CN102979699B - Compressor structure - Google Patents

Compressor structure Download PDF

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Publication number
CN102979699B
CN102979699B CN201210418501.2A CN201210418501A CN102979699B CN 102979699 B CN102979699 B CN 102979699B CN 201210418501 A CN201210418501 A CN 201210418501A CN 102979699 B CN102979699 B CN 102979699B
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piston
connecting rod
chute
cylinder
bent axle
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CN102979699A (en
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张云
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Hangzhou Qianjiang Refrigeration Compressor Group Co., Ltd.
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Hangzhou Qianjiang Compressor Co Ltd
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Priority to CN201510022456.2A priority patent/CN104675667B/en
Publication of CN102979699A publication Critical patent/CN102979699A/en
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Abstract

The invention discloses a compressor structure which comprises a crank and at least one cylinder arranged on the radial direction of the crank and driven by the crank. A piston of the cylinder is provided with a connecting rod fixed with the piston, the connecting rod is provided with a speed regulation sliding groove, the length of the speed regulation sliding groove in the transverse direction of the connecting rod is matched with the rotary diameter of a crank throw on the crank, and the crank throw on the crank is connected to the inner side of the speed regulation sliding groove in a sliding mode. The compressor structure effectively solves the problems that operation of a compressor in the prior art is imbalanced, and the noise is loud, and is stable in operation, low in noise, long in service life and suitable for various types of compressors.

Description

A kind of compressor arrangement
Technical field
The present invention relates to a kind of compressor, particularly relate to a kind of low noise compressor arrangement of improvement.
Background technique
The compressor of prior art extensively adopts crankshaft & connecting, and crankshaft rotating drives piston to move reciprocatingly by the connecting rod swung, thus completes compressor function.But this structure piston is when to-and-fro motion, be not directly proportional between crank rotation angle and the displacement of piston, when piston is when near upper and lower stop, the angle that bent axle turns over is comparatively large and the displacement of piston is very little.Under the condition that bent axle constant angular velocity is rotated, piston is the cyclic process of acceleration-deceleration-acceleration-deceleration.In this operating mode, one is the output torque of motor large when being time little, two are movements of piston is sometimes fast and sometimes slow; These two factors all can cause the not steady of compressor operating, and cause vibration and cause larger noise, when especially piston carries out compressed action, the noise caused by this unbalanced working state is more outstanding.For household electric appliance such as picture refrigerator, refrigerator etc., larger noise will have a strong impact on the life of people, be very large product defect.In addition, for rotate or to be slidably connected, there are larger wearing and tearing, have impact on the working life of compressor in the connecting rod of prior art compressor and the joint of piston.The patent document that publication date is on April 1st, 2009, publication number is CN20121509lY discloses a kind of low noise compressor assembly, mainly solve the noise problems of too of conventional refrigeration compressor, the refrigeration using this assembly to make, air-conditioning, heat-pump apparatus can be directly installed on indoor, and need not arrange machine room and every noise device for it.It comprises compressor, the sound proof housing of vibration isolation be up and down welded by steel plate punched, high, low pressure vibration isolation pipe and extraction joint, in, outer isolation mounting, the sealing protective ring of extracting power supply cord or transition terminal, be arranged on the dividing wall type heat exchanger of silencer in vibration isolation sound proof housing and cooling compressor, compressor is it is characterized in that to be arranged in vibration isolation sound proof housing by interior isolation mounting, the high low pressure exhaust suction pipe of compressor is by respective vibration isolation pipe and draw joint, guide to outside vibration isolation sound proof housing, the power line of compressor is by being contained in sealing protective ring on vibration isolation sound proof housing or transition terminal is guided to outside vibration isolation sound proof housing, upper vibration isolation sound proof housing adopts with lower vibration isolation sound proof housing and ensures that sealing technology is connected, ensure its tightness.Vibration isolation sound proof housing is built with the wall-type heat exchange apparatus of silencer and cooling compressor, and the footing of vibration isolation sound proof housing is connected with the chassis of equipment by outer isolation mounting.This structure reduces the noise of compressor by closed mode, and volume is very large, is only applicable to large-scale compressor.In addition, its piston of the compressor of prior art and connecting rod adopt hinging structure usually, connecting rod is except moving reciprocatingly with piston, also swing and do complicated plane motion, because the joint of connecting rod and piston is for being rotationally connected, therefore there are very large wearing and tearing, have impact on the working life of compressor.The patent document that publication date is on April 2nd, 2008, publication number is CN201043563Y discloses a kind of engine link, it is respectively equipped with connecting rod small end and the connnecting rod big end of symmetry shape at connecting rod shank upper and lower end, deciliter face of connnecting rod big end is run through and locating stud is set and runs through connecting-rod bolts, before and after connnecting rod big end, two planes are offered strip Oil Guide groove, be provided with the stiffening rib of the symmetrical projection of connecting rod longitudinal center line at connecting rod small end top.The molding when forging of this structure is convenient, reduces processing cost, but wrist pin wear between connecting rod and piston problem that is large, that affect compressor working life still exists.
Summary of the invention
The object of the invention is for solving the compressor operating of prior art unbalanced, the problem that noise the is large and compressor arrangement that a kind of stable working, noise are little is provided.
Second object of the present invention is that its wrist pin wear of compressor for solving prior art is large, affects the problem in compressor working life and provides a kind of compressor arrangement of long service life.
The present invention for solving the problems of the technologies described above adopted technological scheme is: a kind of compressor arrangement, comprise bent axle and to be arranged in bent axle radial direction and by least one cylinder of this crank-driven, the piston of described cylinder is provided with the connecting rod fixing with piston, connecting rod is provided with speed governing chute, speed governing chute is horizontally through the center line on length of connecting rod direction, the rotating diameter of speed governing chute crank throw in connecting rod length transversely and described bent axle is suitable, the width of speed governing chute and the diameter of crank throw suitable, crank throw on bent axle is slidably connected in described speed governing chute, during crank rotation, connecting rod central axis is in the longitudinal direction on the central axis of its end piston.The connecting rod of prior art and piston and bent axle are hinging structure, and the convert rotational motion of bent axle is the to-and-fro motion of piston by connecting rod, thus completes the fundamental function of compressor.But this structure piston is when to-and-fro motion, not in direct ratio between the rotation angle of bent axle and the displacement of piston, when piston is when near upper and lower stop, the angle that bent axle turns over is comparatively large and the displacement of piston is very little; On the contrary, piston is when neutral position, and the angle that bent axle turns over is less and the displacement of piston is larger.In this operating mode, little and the movement of piston is sometimes fast and sometimes slow time large during the output torque of motor, these two factors all can cause the not steady of compressor operating, cause vibration of compressor and cause larger noise, especially, when piston carries out compressed action, the noise caused by this unbalanced working state is more outstanding.And the relative position of connecting rod and piston is fixed by the present invention, and speed governing chute is set on connecting rod to change the rotation angle of bent axle and the fixed relationship of piston displacement in prior art, the movement law changing existing piston is coordinated with bent axle by the direction of speed governing chute or trench structure, such as at the end of the compression stroke of piston, by suitably improving the travelling speed of piston, the not steady working state of compressor can be slowed down, reach and reduce vibration, reduce the object of compressor noise, structure of the present invention is applicable to the compressor of single cylinder structure, also the compressor of multi-cylinder structure is applicable to.The rotating diameter of speed governing chute of the present invention crank throw in connecting rod length transversely and described bent axle is suitable, the width of speed governing chute and the diameter of crank throw suitable, crank throw is connected in speed governing chute slidably.Because connecting rod and piston are fixed structure, therefore connecting rod of the present invention cannot swing, during crank rotation, crank throw on bent axle rotates and slidably reciprocates along groove in speed governing chute, thus drivening rod does linear reciprocating motion, connecting rod drives piston to do linear reciprocating motion in the piston hole of cylinder, connecting rod central axis in the longitudinal direction all the time with the central axis of piston on same straight line.The present invention is combined with speed governing chute the to-and-fro motion rotation of bent axle being converted into piston by crank throw, thus realizes the function of compressor.Because the shape of speed governing chute of the present invention or position can set according to actual needs, therefore can change the rotation angle of bent axle and the fixed relationship of piston displacement in prior art, thus make the more stable of compressor operating state, reach the object reducing noise.Speed governing chute can make in theory piston displacement close to wait accelerate or etc. deceleration regime, thus meet the compressor that some has particular/special requirement.In addition, connecting rod of the present invention is fixedly connected with piston, does not have the wrist pin of prior art, and connecting rod only exists relative movement with the crank throw on bent axle, and therefore, the wrist pin wear problem of prior art does not also exist, thus extends the working life of compressor.
When adopting the compressor arrangement of two cylinders, the piston hole of two cylinders is symmetricly set on the both sides of bent axle, the central axis of two cylinders and the central axis of bent axle are at grade, the piston of two cylinders is fixedly connected with by same bipitch structure connecting rod, described speed governing chute is arranged on the centre of bipitch structure connecting rod, phase difference between the motion of two cylinder pistons is 180 degree, two cylinders is respectively provided with one and gives vent to anger and be in charge of.This structure crank rotation can drive two cylinders respectively to do work once for one week, the working efficiency of compressor can be improved, in addition, be symmetrical arranged the volume that two cylinders significantly can reduce compressor, two cylinder of the compressor of double-cylinder structure also can be connected in series, the delivery pressure of cylinder can be significantly improved like this, be applicable to the compressor needing elevated pressures occasion.In addition, two symmetrically arranged structures of cylinder, owing to being fixed by piston at the two ends of bipitch structure connecting rod, change the cantilever linkage structure of single cylinder, therefore can balanced connecting rod stressed, reduce the requirement of strength to connecting rod.
In order to further reduce the noise of compressor, twin-tub double layer construction can also be adopted, when adopting twin-tub double layer construction, cylinder is four, the central axis of four cylinders and the central axis of bent axle are at grade, the piston hole of cylinder divides two to the both sides being symmetricly set on bent axle, piston with a pair cylinder is fixedly connected with by same bipitch structure connecting rod, the center line both sides of described bent axle are provided with two crank throws of dislocation layout, two crank throws are slidably connected in the speed governing chute of two bipitch structure connecting rods respectively, phase difference between two cylinder piston motions of bent axle the same side is 180 degree, two cylinders being positioned at bent axle the same side are cascaded structure, the air outlet of a cylinder is connected with the suction port of another cylinder, two cylinders being in final stage are respectively provided with one to give vent to anger and be in charge of.This structure is the overlaying structure of above-mentioned double-cylinder structure, the direction being positioned at two cylinder piston motions of bent axle the same side during superposition is contrary, except the benefit of double-cylinder structure, its two pairs of pistons due to moving direction contrary, the vibration that piston unidirectional movement causes can be cancelled out each other, therefore, this structure has stable working, feature that noise is little.In addition, this structure two pairs of cylinders adopt cascaded structure, the cylinder series connection that phase place is contrary, can significantly improve the delivery pressure of cylinder like this, be applicable to the compressor that pressure is higher.
The double-deck compressor of twin-tub also can adopt structure below: cylinder is four, the central axis of four cylinders and the central axis of bent axle are at grade, the piston hole of cylinder divides two to the both sides being symmetricly set on bent axle, piston with a pair cylinder is fixedly connected with by same bipitch structure connecting rod, the center line both sides of described bent axle are provided with two crank throws of dislocation layout, two crank throws are slidably connected in the speed governing chute of two bipitch structure connecting rods respectively, phase difference between two cylinder piston motions of bent axle the same side is 180 degree, four cylinders are respectively provided with one to give vent to anger and be in charge of.This four cylinder compressor basic structures and benefit consistent with aforementioned four cylinder compressors, but be not both this structure two pairs of cylinders and adopt parallel-connection structures, the cylinder that phase place is identical is in parallel, four cylinders is equipped with to give vent to anger and is in charge of.
As a kind of simple scheme of speed governing chute, speed governing chute on connecting rod is straight-line groove, described speed governing chute and the length direction of connecting rod are skewed setting, and the true dip direction of speed governing chute is consistent with the crank throw sense of rotation on bent axle, symplex structure centered by described speed governing chute.This structure changes the rotation angle of bent axle and the fixed relationship of piston displacement in prior art by the speed governing chute be obliquely installed.Straight-line groove has acceleration near a section of piston to the moving process of this piston approaches top dead center, and straight-line groove has decelerating effect away from one section of piston to the moving process that this piston leaves top dead center.The true dip direction of speed governing chute is consistent with the crank throw sense of rotation on bent axle, then piston is compared with prior art bigger than normal in its displacement of end of compression stroke, can the working state of constant compression machine, reduces noise.
As the alternative dispensing means of speed governing chute, speed governing chute on connecting rod is S-shaped, the described speed governing chute head and the tail line at two ends and the length direction of connecting rod are skewed setting, the true dip direction of speed governing chute is consistent with the crank throw sense of rotation on bent axle, symplex structure centered by described speed governing chute.The working principle of S shape speed governing chute and aforesaid rectilinear groove are roughly the same, the center line and the straight line that are chute have certain departing from, present certain S shape distortion, the grooved of this distortion coordinates with bent axle can improve the rotation angle of bent axle and the relation of piston displacement further, thus the working state of further constant compression machine, reduce noise.S shape speed governing chute is usually docked by the curve bath of two sections of structures that are centrosymmetric and forms, and this structure is particularly useful for the symmetrically arranged compressor of cylinder.In addition, S shape speed governing chute of the present invention can make in theory piston displacement close to wait accelerate or etc. deceleration regime, thus meet the compressor that some has particular/special requirement.
As preferably, the length direction of connecting rod is provided with oil duct, and one end of oil duct is positioned on the sidewall of speed governing chute, and described piston is provided with annular oil groove, the other end of oil duct is connected with annular oil groove by being arranged on piston upper oil hole, and described connecting rod crimps with piston, be spirally connected or one is connected.
As preferably, the output terminal upstream of compressor is provided with and exports gas force equalization mechanism, described output gas force equalization mechanism comprise described giving vent to anger be in charge of and with the house steward that gives vent to anger being in charge of and being connected that gives vent to anger, the described pipe capacity be in charge of of giving vent to anger is identical, the pressurized gas that cylinder produces, is sequentially passed through the house steward that gives vent to anger discharge by described giving vent to anger after being in charge of.When the present invention adopts the structure of multiple cylinder, because cylinder is by same crank-driven, therefore there is phase difference in the piston movement of cylinder of the present invention, when the pipe capacity be in charge of when giving vent to anger is identical, the pressurized gas that cylinder produces can sequentially pass through the house steward that gives vent to anger and discharge after being in charge of by giving vent to anger, can reduce gas that multiple cylinder discharges like this because synchronous arrive give vent to anger house steward and the impact that causes, reduce the vibration and noise impacting and cause, pipe capacity here refers to the volume of giving vent to anger and being in charge of.In addition, compressor output end described here, refer to the final output terminal of compressor, the upstream of this end generally includes wherein one section and be in charge of with giving vent to anger of being directly connected of the house steward that gives vent to anger of the house steward that gives vent to anger, consider that cylinder may exist the situation of series connection, therefore not the output of each cylinder all connects the house steward that gives vent to anger.
As preferably, connecting rod is segmentation spiro connection structure, and the speed governing chute in the middle part of connecting rod is formed by two relative openings are closed, is bolted connection between the opening that speed governing chute two is relative.Connecting rod adopts segmentation spiro connection structure to be conducive to processing and assembling, especially adopt the compressor of twin-tub or four cylinder structures and connecting rod and piston adopt integrative-structure time, segmentation spiro connection structure is conducive to connecting rod and Piston Machining and assembling.
As preferably, the body of compressor is Split type structure, and described body comprises cylinder block and crankshaft base, and described cylinder block is bolted with crankshaft base and connects.For multicylinder compressor, especially when connecting rod and piston adopt integrative-structure, also the compressor block of Split type structure can be adopted, now the body of compressor comprises cylinder block and crankshaft base, cylinder block is bolted with crankshaft base and connects, so also can solve the machining error problem of assembling and piston hole, reduce cost of production.In addition, for the compressor of cylinder symmetry, the structure that both sides cylinder is all spirally connected with crankshaft base can be adopted, also can adopt side and crankshaft base one, the structure that opposite side and crankshaft base are spirally connected.
The invention has the beneficial effects as follows: the compressor operating that it efficiently solves prior art is unbalanced, the problem that noise is large, also its wrist pin wear of compressor arrangement solving prior art is large, affect the problem in compressor working life, in addition, speed governing chute of the present invention can make in theory piston displacement close to wait accelerate or etc. deceleration regime, thus meet the compressor that some has particular/special requirement.Arrangement works of the present invention is steady, noise is little and long service life, is suitable for various dissimilar compressor, has very high use value.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of compressor arrangement embodiment 1 of the present invention;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is a kind of structural representation of compressor arrangement embodiment 4 of the present invention;
Fig. 4 is the plan view of Fig. 2;
Fig. 5 is a kind of structural representation of compressor arrangement embodiment 6 of the present invention;
Fig. 6 is a kind of composite structure schematic diagram of connecting rod of the present invention and piston;
Fig. 7 is a kind of structural representation of the split type body of the present invention;
Fig. 8 is the plan view of Fig. 7;
Fig. 9 is a kind of structural representation of single cylinder compressor connecting rod of the present invention;
Figure 10 is the another kind of structural representation of single cylinder compressor connecting rod of the present invention;
Figure 11 is a kind of structural representation of duplex cylinder compressor connecting rod of the present invention;
Figure 12 is the plan view of Figure 11;
Figure 13 is the another kind of structural representation of duplex cylinder compressor connecting rod of the present invention;
Figure 14 is a kind of structural representation that the present invention adopts the connecting rod of segmentation spiro connection structure.
In figure: 1. body, 2. piston hole, 3. piston, 4. connecting rod, 5. speed governing chute, 6. bent axle, 7. crank throw, 8. oil duct, 9. oil groove, 10. oilhole, 11. fixed ends, 12. equilibrium blocks, 13. cylinder blocks, 14. crankshaft bases.
Embodiment
Below by embodiment, and by reference to the accompanying drawings the embodiment of technical solution of the present invention is further described.
Embodiment 1
In embodiment 1 as shown in Figure 1, a kind of compressor arrangement, comprise body 1, bent axle 6 and to be arranged in bent axle radial direction and by a cylinder of this crank-driven, piston 3 is equipped with the piston hole 2 on body, piston is provided with the connecting rod 4 fixing with piston, the fixed end 11 of connecting rod crimps with piston, connecting rod is provided with speed governing chute 5, speed governing chute is straight-line groove, the length direction of speed governing chute and connecting rod is skewed setting, the true dip direction of speed governing chute is consistent (see Fig. 2 with the crank throw sense of rotation on bent axle, in figure, arrow is the sense of rotation of crank throw on bent axle), speed governing chute is horizontally through the center line on length of connecting rod direction, and the speed governing chute of center line both sides forms centrosymmetric structure (see figure 9).The length direction of connecting rod is provided with oil duct 8, and one end of oil duct is positioned on the sidewall of speed governing chute, and described piston is provided with annular oil groove 9, and the other end of oil duct is connected with annular oil groove by being arranged on piston upper oil hole 10.The rotating diameter of speed governing chute crank throw 7 in connecting rod length transversely and described bent axle is suitable, the width of speed governing chute and the diameter of crank throw suitable, crank throw on bent axle is slidably connected in described speed governing chute, bent axle is also provided with equilibrium block 12, during crank rotation, connecting rod central axis is in the longitudinal direction on the central axis of its end piston.
Embodiment 2
Embodiment 2 connecting rod and piston are spiro connection structure, speed governing chute on connecting rod is S-shaped, S shape speed governing chute is docked by the curve bath of two sections of structures that are centrosymmetric and forms (see figure 10), the described speed governing chute head and the tail line at two ends and the length direction of connecting rod are skewed setting, the true dip direction of speed governing chute is consistent with the crank throw sense of rotation on bent axle, and all the other are identical with embodiment 1.
Embodiment 3
Embodiment 3 connecting rod and piston are structure as a whole, and all the other are identical with embodiment 1.
Embodiment 4
In the embodiment 4 shown in Fig. 3 Fig. 4, cylinder is two, the piston hole of cylinder is symmetricly set on the both sides of bent axle, the central axis of two cylinders and the central axis of bent axle are at grade, the piston of two cylinders is fixedly connected with (see figure 6) by same bipitch structure connecting rod, speed governing chute on connecting rod is straight-line groove, speed governing chute is arranged on the centre (see Figure 11, Figure 12) of bipitch structure connecting rod, phase difference between the motion of two cylinder pistons is 180 degree, two cylinders is respectively provided with one and gives vent to anger and be in charge of.The output terminal upstream of the compressor of embodiment 4 is provided with and exports gas force equalization mechanism, described output gas force equalization mechanism comprise described giving vent to anger be in charge of and with the house steward that gives vent to anger (not shown in FIG.) being in charge of and being connected that gives vent to anger, the described pipe capacity be in charge of of giving vent to anger is identical, the pressurized gas that cylinder produces, sequentially pass through the house steward that gives vent to anger after being in charge of by described giving vent to anger to discharge, all the other are identical with embodiment 1.
Embodiment 5
The cylinder of embodiment 5 is two, the piston hole of cylinder is symmetricly set on the both sides of bent axle, the central axis of two cylinders and the central axis of bent axle are at grade, the piston of two cylinders is fixedly connected with by same bipitch structure connecting rod, speed governing chute on connecting rod is slightly S-shaped, is arranged on the centre (see Figure 13) of bipitch structure connecting rod.The compressor block of embodiment 5 is Split type structure, and described body comprises cylinder block 13 and crankshaft base 14, and both sides cylinder block is bolted with crankshaft base and connects (see Fig. 7, Fig. 8), and all the other are identical with embodiment 4.
Embodiment 6
The cylinder of embodiment 6 is four, the central axis of four cylinders and the central axis of bent axle are at grade, the piston hole of cylinder divides two to the both sides (see figure 5) being symmetricly set on bent axle, piston with a pair cylinder is fixedly connected with by same bipitch structure connecting rod, described connecting rod is segmentation spiro connection structure, speed governing chute in the middle part of connecting rod is formed by two relative openings are closed, is bolted connection (see Figure 14) between the opening that speed governing chute two is relative.The center line both sides of described bent axle are provided with two crank throws of dislocation layout, two crank throws are slidably connected in the speed governing chute of two bipitch structure connecting rods respectively, phase difference between two cylinder piston motions of bent axle the same side is 180 degree, two cylinders being positioned at bent axle the same side are cascaded structure, the air outlet of a cylinder is connected with the suction port of another cylinder, two cylinders being in final stage are respectively provided with one to give vent to anger and be in charge of, all the other are identical with embodiment 4.
Embodiment 7
The cylinder of embodiment 7 is four, the central axis of four cylinders and the central axis of bent axle are at grade, the piston hole of cylinder divides two to the both sides being symmetricly set on bent axle, piston with a pair cylinder is fixedly connected with by same bipitch structure connecting rod, the center line both sides of described bent axle are provided with two crank throws of dislocation layout, two crank throws are slidably connected in the speed governing chute of two bipitch structure connecting rods respectively, phase difference between two cylinder piston motions of bent axle the same side is 180 degree, four cylinders are respectively provided with one to give vent to anger and be in charge of, all the other are identical with embodiment 5.
In addition to the implementation; in the scope disclosed in claims of the present invention and specification; technical characteristics of the present invention or technical data can carry out reselecting and combining; thus form new embodiment; these are all those skilled in the art without the need to carrying out creative work and attainable, and the embodiment that therefore these the present invention do not describe in detail also should be considered as specific embodiments of the invention and within protection scope of the present invention.
The relative position of connecting rod and piston is fixed by the present invention, connecting rod arranges speed governing chute to change the rotation angle of bent axle and the fixed relationship of piston displacement in prior art, the movement law changing existing piston is coordinated with bent axle by the direction of speed governing chute or trench structure, to slow down the not steady working state of compressor, reach the object reducing vibration, reduce compressor noise.Shape or the position of speed governing chute of the present invention can set according to actual needs, can make in theory piston displacement close to wait accelerate or etc. deceleration regime, thus meet the compressor that some has particular/special requirement.

Claims (5)

1. a compressor arrangement, comprise bent axle and to be arranged in bent axle radial direction and by four cylinders of this crank-driven, it is characterized in that: the piston (3) of described cylinder is provided with the connecting rod (4) fixing with piston, connecting rod is provided with speed governing chute (5), speed governing chute is horizontally through the center line on length of connecting rod direction, speed governing chute is suitable at the rotating diameter of connecting rod length transversely and the upper crank throw (7) of described bent axle (6), the width of speed governing chute and the diameter of crank throw suitable, crank throw on bent axle is slidably connected in described speed governing chute, during crank rotation, connecting rod central axis is in the longitudinal direction on the central axis of its end piston, the central axis of four cylinders and the central axis of bent axle are at grade, the piston hole of cylinder divides two to the both sides being symmetricly set on bent axle, piston with a pair cylinder is fixedly connected with by same bipitch structure connecting rod, the center line both sides of described bent axle are provided with two crank throws of dislocation layout, two crank throws are slidably connected in the speed governing chute of two bipitch structure connecting rods respectively, phase difference between two cylinder piston motions of bent axle the same side is 180 degree, two cylinders being positioned at bent axle the same side are cascaded structure, the air outlet of a cylinder is connected with the suction port of another cylinder, two cylinders being in final stage are respectively provided with one to give vent to anger and be in charge of.
2. compressor arrangement according to claim 1, it is characterized in that: the length direction of connecting rod is provided with oil duct (8), one end of oil duct is positioned on the sidewall of speed governing chute, described piston is provided with annular oil groove (9), the other end of oil duct is connected with annular oil groove by being arranged on piston upper oil hole (10), and described connecting rod crimps with piston, be spirally connected or one is connected.
3. compressor arrangement according to claim 1, it is characterized in that: the output terminal upstream of compressor is provided with and exports gas force equalization mechanism, described output gas force equalization mechanism comprise described giving vent to anger be in charge of and with the house steward that gives vent to anger being in charge of and being connected that gives vent to anger, the described pipe capacity be in charge of of giving vent to anger is identical, the pressurized gas that cylinder produces, is sequentially passed through the house steward that gives vent to anger discharge by described giving vent to anger after being in charge of.
4. compressor arrangement according to claim 1 and 2, is characterized in that: connecting rod is segmentation spiro connection structure, and the speed governing chute in the middle part of connecting rod is formed by two relative openings are closed, is bolted connection between the opening that speed governing chute two is relative.
5. compressor arrangement according to claim 1 and 2, is characterized in that: the body (1) of compressor is Split type structure, and described body comprises cylinder block (13) and crankshaft base (14), and described cylinder block is bolted with crankshaft base and connects.
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CN113915103B (en) * 2021-07-23 2023-03-28 南京信息职业技术学院 Stepless speed regulation reciprocating piston compressor suitable for new energy automobile

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Address after: Hangzhou City, Zhejiang province 311000 industrial city of Yuhang Xianlin holy Road No. 1

Patentee after: Hangzhou Qianjiang Compressor Group Co. Ltd.

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