CN1323243C

CN1323243C - Synchronous rotary compressor

Info

Publication number: CN1323243C
Application number: CNB2004100260537A
Authority: CN
Inventors: 屈宗长; 徐衡; 冯健美; 李心伟; 吴裕远
Original assignee: Xian Jiaotong University
Current assignee: Jiangsu Fengtai Fluid Machinery Technology Co ltd
Priority date: 2004-04-19
Filing date: 2004-04-19
Publication date: 2007-06-27
Anticipated expiration: 2024-04-19
Also published as: CN1563720A

Abstract

The present invention relates to a synchronous gyration type compressor which comprises a fixed frame and an eccentric seat connected with the fixed frame into an integral body. An air cylinder is arranged in an air cavity formed from the fixed frame and the eccentric seat, and a rotor sheathed on a driving shaft is arranged in the air cylinder. A slide plate which can be embedded in the air cylinder is also arranged on the rotor, and the air cylinder respectively passes through a machine frame bearing and a supporting bearing and is arranged in the air cavity formed from the fixed frame and the eccentric seat. Center shafts of the air cylinder and the rotor are on different axes. When the driving shaft rotates, the rotor is driven to make full rotating motion, and the slide plate is embedded in the air cylinder under the action of centrifugal force. The air cylinder is driven to make the full rotating motion in the same direction, and the time for the rotor and the air cylinder to rotate a circle is the same. The air cylinder and the rotor of the present invention make synchronous gyration motion and completely rotate around respective gyration centers. The relative speed between the rotor and the air cylinder is very low without unbalanced inertia force, and an air inlet valve is not also needed to reduce the loss of flow resistance. The running of a machine is very smooth, frictional abrasion is largely reduced, and efficiency is enhanced.

Description

Synchronous rotary compressor

Technical field

The invention belongs to compressor field, particularly a kind of synchronous rotary compressor.

Background technique

The compressor that uses has reciprocal compressor, compressor with rolling rotor, slide vane compressor etc. at present.Reciprocal compressor is owing to be difficult to the inertial force of balance, and vibration is big, and rotating speed is low, and volume is big.Exist bigger speed of related movement between piston of its motion and the static cylinder in addition, fretting wear is serious.Air inlet and exhaust valve, piston ring that next is this compressor etc. all belongs to easily damaged parts, and this also is its fatal shortcoming, causes the poor reliability of machine run, and efficient is low.The cylinder of compressor with rolling rotor is static, and the internal surface contact points of it and rotor moves with very big relative velocity in movement process, also exists very big relative velocity between rotor and the slide plate, and its fretting wear is very serious.The cylinder of slide vane compressor also is static, rotor when rotated, slide plate is thrown away from groove by action of centrifugal force, its end is close on the static cylinder surfaces, the main shortcoming of this compressor is that the relative moving speed between slide plate and the cylinder is big, mechanical friction is serious, produces bigger wearing and tearing and energy loss, so working life and efficient are lower.Scroll compressor also is to exist bigger relative velocity between quiet dish and the Moving plate, and complex process machining accuracy height.The compressor of the above-mentioned type all has a common problem, is exactly that fretting wear is serious, energy loss big, leaks big, inefficiency; Or processing technology complexity, precision height.Its main factor is: the cylinder of reciprocal compressor, rolling piston compressor and slide vane compressor all is static, between piston and the cylinder, between slide plate and the cylinder and all exist very big relative movement between rolling piston and the cylinder, its fretting wear is big, leak the result that seriously is inevitable.Reciprocal compressor is because the inertial force of motion is difficult to balance, vibration is big, the easily damaged parts life-span is short and poor reliability in addition.Scroll compressor is owing to the machining accuracy height, and complex process causes the cost height.

Summary of the invention

The object of the present invention is to provide a kind of unbalanced inertial force that both do not had, also do not need suction valve, loss, the machine run that can reduce flow resistance are steady, and the wearing and tearing of can reducing friction, the synchronous rotary compressor of raising the efficiency.

For achieving the above object, the technical solution used in the present invention is: comprise fixed frame and the eccentric mounting that is connected as a single entity with fixed frame, in the air cavity of fixed frame and eccentric mounting formation, be provided with cylinder, cylinder comprises two lids at cylinder barrel and coating gas cylinder barrel two ends, be provided with the rotor that is sleeved on the live axle in the cylinder, also be provided with the slide plate that can embed the cylinder barrel inwall on the rotor, be characterized in: cylinder is arranged in the cavity of fixed frame and eccentric mounting formation by rack bearing and block bearing respectively, a lid of cylinder is provided with the hole of passing for described live axle, another lid of cylinder offers an axial exhaust port along central axis of air cylinder, on fixed frame, also be provided with the outlet valve that is connected with the exhaust port of cylinder, and cylinder and centre of rotor axle be not on same axis.

Because cylinder of the present invention and rotor are synchronous rotation motions, rotate around separately gyration center fully between cylinder and the rotor, both there be not unbalanced inertial force, do not need suction valve yet, reduced fluid resistance losses, very steady of machine run.Cylinder and rotor are to be synchronized with the movement in addition, and the relative velocity between them is very low, has significantly reduced fretting wear, has improved efficient.

Description of drawings

Fig. 1 is an overall structure schematic representation of the present invention;

Fig. 2 is a fundamental diagram of the present invention.

Embodiment

Below in conjunction with accompanying drawing structural principle of the present invention and working principle are described in further detail.

Referring to Fig. 1, the present invention includes cylinder 4 and be arranged on the rotor 5 that is sleeved in the cylinder 4 on the live axle 1, also be provided with a slide plate 10 that can embed in the cylinder 4 on the rotor 5, can be installed on the fixed frame 6 by rack bearing 7 with the cylinder 4 that rotor 5 rotates, also be provided with the outlet valve 9 that is connected with the exhaust port 8 of cylinder on the fixed frame 6, and cylinder 4 is concentric with fixed frame 6, is not installed on the eccentric mounting 3 by block bearing 2 at the fixed frame on the same axle center 6 with rotor 5.When live axle 1 rotates, drive rotor 5 and do rotation motion completely, slide plate 10 embeds under action of centrifugal force in the cylinder 4, drives cylinder 4 and also does rotation motion completely in the same way, and it is identical that they turn over the time in a week.

Referring to Fig. 2, live axle 1 of the present invention is concentric fully with the rotating center of rotor 5, when live axle 1 rotates, it drives rotor 5 and does rotation motion completely, slide plate 10 embeds in cylinder 4 bodies under action of centrifugal force, it drives cylinder 4 and also does rotation motion completely in the same way, and it is identical that they turn over the time in a week.Because cylinder 4 and rotor 5 all are the gyration center rotations around oneself, so there is not unbalanced inertial force.When it rotated, the internal surface of cylinder 4 and the outer surface of rotor were tangent all the time at the A point, have just formed a crescent-shaped space between them, have constituted the active chamber of compressor.But because rotor 5 is different with the radius of cylinder 4, so their contact surface moves extremely slowly at work when rotating, relative velocity is extremely low, greatly reduces friction and wear like this.In this mechanism, slide plate 10 is divided into two parts with active chamber, be air aspiration cavity 11 and exhaust cavity 12, suction port is located on the rotary cylinder 4 of back of slide plate 10, machine communicates with the intakeport of synchronous rotation in turning course all the time, and relief opening is located at slide plate 10 fronts, discharges from exhaust port 8 by rotor 5, exhaust port 8 is communicated with exhaust duct all the time in rotary course, continuous finishes air inlet and exhaust.When β=0, air inlet begins to finish with exhaust; When β＞0, compression process begins, and Xuan Zhuan intakeport just continues air-breathing simultaneously; When β=90 were spent, air aspiration cavity in the cylinder and exhaust cavity equated; When β=ψ, exhaust begins, and gas is discharged from center cavity, and ψ is the exhaust angle.When β=2 π, finish a work cycle, and at this moment air aspiration cavity is full of by gas.

The present invention is for a swept volume, gas suction, compression and exhaust are to finish in two weeks of rotor 5, but carry out simultaneously because air-breathing and compression process are active chambers in slide plate 10 both sides, therefore remaining revolution concerning complete machine finishes a work cycle.So not only machine run is steady, and gas is low at air-breathing and flow velocity relief opening, and flow losses reduce greatly, and its flow losses are about half of reciprocal compressor.The compressor of this structure relies on the intakeport of rotation directly air-breathing, need not add Aspirating valves, does not have the air inlet heating phenomena, so the volumetric efficiency height.In addition, component are few and do not have easily damaged parts, and volume reduces 50-60% than reciprocating compressor, and weight alleviates about 60% approximately, and indicated efficiency improves 30-40% than piston type.

The rotor 3 and the cylinder 1 of compressor are made up of two cylinders, and the speed of related movement between the two is minimum, and fretting wear reduces greatly, and the leakage of working medium simultaneously also solves quite easily.Because slide plate 4 quality are very little, the distance of its motion is short, and therefore the reciprocal inertia force that only exists on slide plate 10 is also very little, can ignore fully, because the inhomogeneous rotatory inertia force unbalance that causes of material can be easy to solve on structure fully.Other two solid of rotation are rotating around separately rotating center respectively, therefore do not have unbalanced force, so machine run is very steady, vibrate little low with noise.The morphology of main parts size is a cylinder in addition, so machining accuracy is easy to guarantee, is convenient to utilize high efficiency working machine tool and flow of tissue waterline to produce, also be easy to assembling and maintenance, especially the bent axle that does not have eccentric motion can improve output greatly, reduces cost.

Claims

1, synchronous rotary compressor, comprise fixed frame [6] and the eccentric mounting [3] that is connected as a single entity with fixed frame [6], in the air cavity of fixed frame [6] and eccentric mounting [3] formation, be provided with cylinder [4], cylinder [4] comprises two lids at cylinder barrel and coating gas cylinder barrel two ends, be provided with the rotor [5] that is sleeved on the live axle [1] in the cylinder [4], also be provided with the slide plate [10] that can embed the cylinder barrel inwall on the rotor [5], it is characterized in that: cylinder [4] is arranged in the cavity of fixed frame [6] and eccentric mounting [3] formation by rack bearing [7] and block bearing [2] respectively, a lid of cylinder [4] is provided with the hole of passing for described live axle [1], another lid of cylinder [4] offers an axial exhaust port [8] along central axis of air cylinder, on fixed frame [6], also be provided with the outlet valve [9] that is connected with the exhaust port [8] of cylinder [4], and the central shaft of cylinder [4] and rotor [5] is not on same axis.