CN1010339B - Axial sliding-vane type compressor - Google Patents

Abstract

The present invention relates to an axial sliding-vane compressor which is usually used for an occasion of conveying gas or increasing gas pressure. The axial sliding-vane compressor is mainly composed of a driving machine, a rotating shaft, two rotors whose end surfaces are meniscoid, a cylinder cover, two or more than two sliding vanes, a spring, a cylinder block, a shaft coupling, an air inlet, an exhaust valve, etc., wherein the sliding vanes can axially move in a sliding-vane groove arranged in the cylinder cover. The compressor has the advantages of reasonable and simple structure, no centrifugal force, self balance of loads in axial direction and radial direction, small vibration, reliable and stable operation, etc. The present invention can be used for various medium and small-sized gas compression devices and small-sized air conditioner refrigerator and can also be used as a vacuum pump.

Description

Axial sliding-vane type compressor

The invention belongs to compressor, axial sliding-vane type compressor particularly is generally used for conveying gas or improves the occasion of gas pressure.

Compressor is divided into positive displacement and speed mode two big classes by its action principle difference.The positive displacement compressor of extensive use can be divided into rotary type and reciprocating type again on engineering.Reciprocal compressor is ripe technically, and efficient is higher, but complex structure, inertial force is big, and vibration is big, and easily damaged parts is many.Eccentric rolling rotor type compressor belongs to a kind of in the rotary compressor, and it mainly is made up of driving machine, coupling, cylinder block, cylinder head, eccentric rotor, rotating shaft, parts such as the slide plate that can do to move radially, spring, intakeport and outlet valve.Cylinder block, eccentric rotor, cylinder head and slide plate have constituted two crescent-shaped space-swept volumes.Slide plate can move radially in groove, and when eccentric rotor rotated, swept volume took place from small to large, from big to small cyclically-varying again then, thus gas is sucked from suction port, discharge from outlet valve after compression; It is simpler that it has structure, easily manufactured, low cost and other advantages.But there are following two big defectives: 1, because rotor is eccentric, so work time generation centrifugal force will cause the vibration of machine inevitably; 2, gas pressure difference in two crescent-shaped spaces, its pressure reduction acts on the bearing by eccentric rotor, and this radial load is alternation, causes the damage of parts such as bearing easily, influences the work effect of compressor.

Task of the present invention is a kind of no centrifugal action of design, axial and radial load self balance, and noise is low, and is rational in infrastructure, the axial sliding-vane type compressor of working stability.

Accompanying drawing 1 is the sliding-vane compressor structural representation.

1-driving machine wherein, 2-rotating shaft, 3-rotor, 4-slide plate, 5-spring, 6-cylinder block, 7-cylinder head, 10-coupling.

Accompanying drawing 2 is upper cylinder lid partial sectional view.

Wherein 2-rotating shaft, 3-rotor, 4-slide plate, 6-cylinder block, 7-cylinder head, 8-suction port, 9-outlet valve.

Architectural feature of the present invention and operation principle are shown in accompanying drawing 1, accompanying drawing 2.

Axial sliding-vane type compressor mainly is made up of driving machine 1, rotating shaft 2 rotors 3, slide plate 4, spring 5, cylinder block 6, cylinder head 7, intakeport 8, outlet valve 9 and coupling 10.Rotor 3 and rotating shaft 2 are connected with stationary fit, and be contained in the cylinder block 6, two cylinder head 7 link together with fastening piece and cylinder block 6 respectively, driving machine 1 is connected with rotating shaft 2 by coupling 10, the annular portion of rotor 3 both ends of the surface is male and fomale(M﹠F), slide plate 4 is contained in the vane slot of cylinder head 7, one side is supported by spring 5, opposite side is pressed on the male and fomale(M﹠F) of rotor 3, rotation along with rotor 3, force the slide plate 4 in vane slot to move axially regularly, slide plate 4 is complementary with spring 5, driving machine 1, rotating shaft 2, rotor 3, the center line of cylinder head 7 and cylinder block 6 is all on same axis, rotor 3 shapes are symmetry with this axis, do not have centrifugal force during rotation, the male and fomale(M﹠F) of rotor 3 end faces, cylinder block 6, the common space of cylinder head 7 and slide plate 4 constitutes the swept volume of this compressor, this volume is in the both ends of the surface of rotor 3, and axial and radial load obtains balance.The number of slide plate 4 can be more than two or two, and they are in the vane slot that is distributed on the cylinder head 7.When driving machine 1 drives rotor 3 rotations by rotating shaft 2, slide plate 4 in vane slot moves axially regularly with rotor 3 rotations, the swept volume of compressor is experiencing ascending, descending again then cyclically-varying, gas is sucked from suction port 8, after overcompression, discharge, thereby reach the purpose of conveying gas or pressurized gas from outlet valve.

Axial sliding-vane type compressor of the present invention compared with prior art has simple and reasonable, no centrifugal force, and axial and radial load self obtains balance, vibrates advantages such as little, that noise is low, working stability is reliable.Can be widely used in various middle-size and small-size gas compressing apparatus and the minitype air conditioner refrigeration plant, also can be used as vacuum pump and use.

Embodiment: accompanying drawing 1, accompanying drawing 2 are one embodiment of the present of invention.

Shown in accompanying drawing 1, accompanying drawing 2, axial sliding-vane type compressor mainly is made up of driving machine 1, rotating shaft 2, rotor 3, slide plate 4, spring 5, cylinder block 6, cylinder head 7, intakeport 8, outlet valve 9 and coupling 10, rotor 3 and rotating shaft 2 are connected with stationary fit, and are contained in the cylinder block 6.Two cylinder head 7 link together with bolt and cylinder block 6 respectively, driving machine 1 is connected with rotating shaft 2 by coupling 10, the rotor 3 both ends of the surface annular portions that contact with slide plate 4 are male and fomale(M﹠F), the number of slide plate 4 is two, be contained in uniform way in the vane slot of cylinder head 7, slide plate 4 one sides are supported by spring 5, opposite side is pressed on the male and fomale(M﹠F) of rotor 3, rotation along with rotor 3, force the slide plate 4 in the vane slot to move axially regularly, spring 5 is complementary with slide plate 4, the male and fomale(M﹠F) of rotor 3 end faces, cylinder block 6, the common space of cylinder head 7 and slide plate 4 constitutes the swept volume of this compressor, and this volume is in the both ends of the surface of rotor 3, axial and radial load obtains balance, driving machine 1, rotating shaft 2, rotor 3, the center line of cylinder head 7 and cylinder block 6 are all on same axis, rotor 3 shapes are symmetry with this axis, do not have centrifugal force during rotation.

The working procedure of compressor is such: shown in accompanying drawing 1, accompanying drawing 2, when the convex surface of rotor 3 end faces forwards the position of slide plate 4 to (turning to shown in accompanying drawing 2 arrows), slide plate 4 is in the extreme higher position of spring side, exhaust valve closure, exhaust process finishes, and air-breathing and compression process is about to begin.Along with the rotation of rotor 3, the effect of spring 5 power makes slide plate 4 move down (see figure 2), and each slide plate 4 is divided into two swept volumes to rotor 3 end face concave surfaces.Section decide the people and is stood in and see two slide plates 4 in the rotating shaft 2, and the swept volume on each slide plate 4 the right is being dwindled, and from big to small promptly, gas is compressed, and the pressure rising is a compression process; The swept volume on slide plate 4 left sides is enlarging, and promptly from small to large, gas constantly enters swept volume through suction port 8, is breathing process.When gas pressure was elevated to greater than vent systems pressure in slide plate 4 the right swept volumes, outlet valve 9 was opened, and has begun exhaust process, and the gas that pressure raises is constantly discharged through outlet valve, and the swept volume on the left side is still air-breathing; Rotor 3 continues rotation, when the convex surface of rotor 3 end faces just in time is in the position of slide plate 4, when promptly rotor 3 rotates to 180 ° of positions, slide plate 4 the right swept volume exhaust processes finish, outlet valve 9 is closed, and simultaneously, the breathing process of the swept volume on slide plate 4 left sides also finishes.Finished a work cycle this moment.Because two slide plates 4 are to be distributed on the cylinder head 7, the male and fomale(M﹠F) of rotor 3 becomes symmetry with axis, so two slide plate 4 axially movable actions are in full accord, they are carrying out same working procedure to the corresponding swept volume about concave surface was divided into of rotor 3 end faces separately, be each slide plate 4 left side swept volume all air-breathing, the swept volume on the right all the compression and exhaust.

When rotor 3 from 180 ° to 360 ° of rotary courses, experienced above-mentioned work cycle equally, promptly the swept volume on slide plate 4 left sides is being carried out air-breathingly, and meanwhile slide plate 4 the right swept volumes are being compressed and exhaust, when rotor 3 forwards 360 ° of positions to, promptly finished second work cycle.As seen, work cycle is to be the cycle with π, and rotor 3 circles, and finishes two work cycle.

Claims (3)

1, a kind of axial sliding-vane type compressor, mainly by driving machine (1), rotating shaft (2), rotor (3), slide plate (4), spring (5), cylinder block (6), cylinder head (7), intakeport (8), outlet valve (9) and coupling (10) are formed, driving machine (1), rotating shaft (2), rotor (3), the center line of cylinder block (6) and cylinder head (7) is all on same axis, the shape of rotor (3) is a symmetry with this axis, one side of slide plate (4) is supported by spring (5), spring (5) is complementary with slide plate (4), it is characterized in that forcing slide plate (4) to make axially movable rotor (3) both ends of the surface annular portion and be male and fomale(M﹠F), slide plate (4) is contained in the vane slot of cylinder head (7), slide plate (4) opposite side is pressed on the male and fomale(M﹠F) of rotor (3), the male and fomale(M﹠F) of rotor (3) end face, cylinder block (6), the common space of cylinder head (7) and slide plate (4) has constituted the swept volume of this compressor, and this volume is in the both ends of the surface of rotor (3).

2, compressor as claimed in claim 1, the number that it is characterized in that slide plate (4) can be two or three or four.

3, compressor as claimed in claim 1 or 2 is characterized in that slide plate (4) is distributed in the vane slot on the cylinder head (7).

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