CN200971862Y

CN200971862Y - Synchronous rotary compressor

Info

Publication number: CN200971862Y
Application number: CN 200620135856
Authority: CN
Inventors: 屈宗长; 冯健美; 吴裕远
Original assignee: Xian Jiaotong University
Current assignee: Dafeng Fengtai Fluid Machinery Technology Co Ltd
Priority date: 2006-09-26
Filing date: 2006-09-26
Publication date: 2007-11-07
Anticipated expiration: 2016-09-26

Abstract

The utility model relates to a synchronous rotary type compressing machine which comprises a fixed frame and an eccentric base which combines with the fixed frame as a whole. The air cavity formed by the fixed frame and the eccentric base is internally provided with an air cylinder, the air cylinder is internally provided with a rotor which is sleeved on the driving axle, the rotor is also provided with a return board which may be enchased into the air cylinder, the air cylinder is positioned in the air cavity formed by the fixed frame and the eccentric base through a frame bearing and a pedestal bearing, the air cylinder and the central axis of the rotor are not on the same axial line. When a drive shaft rotates, the drive shaft drives the rotor to undergo a completely turning motion, the return board is enchased into the air cylinder under the action of centrifugal force to drive the air cylinder to undergo a completely equidirectional returning motion, the time for the two returning motions for one cycle is completely same. The air cylinder and the rotor undergo synchronous turning motions, rotating around their own returning center and have a very slow relative speed, in other words, the air cylinder and the rotor has no unbalanced inertia force and needs no admission valve, thereby cutting down the flow resistance loss. Furthermore, the machine runs quite stably, thereby reducing the friction loss and enhancing efficiency greatly.

Description

Synchronous rotary compressor tool

Technical field

The utility model belongs to compressor field, is specifically related to a kind of synchronous rotary compressor tool.

Background technique

Present widely used compressor comprises reciprocal compressor, compressor with rolling rotor, slide vane compressor and scroll compressor etc.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.The cylinder of compressor with rolling rotor and slide vane compressor all is static, the internal surface contact points of it and rotor moves with very big relative velocity in movement process, also exist very big relative velocity between rotor and the slide plate, and the slide vane compressor slide plate also is to rub mutually with static cylinder under action of centrifugal force, because speed of related movement is big, so the fretting wear of these two kinds of compressors is very serious, produce bigger wearing and tearing and energy loss, so working life and efficient are lower.For 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, cause the cost height.

Summary of the invention

The purpose of this utility model is to provide a kind of unbalanced inertial force that both do not had, and does not also need suction valve, and loss, the machine run that can reduce flow resistance are steady, and the wearing and tearing of can reducing friction, the synchronous rotary compressor tool 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, in this cylinder, be provided with the rotor that is sleeved on the live axle, also be provided with the slide plate that can embed in the cylinder on the rotor, be characterized in, cylinder is arranged in the air cavity that fixed frame and eccentric mounting constitute by rack bearing and block bearing respectively, and cylinder and centre of rotor axle be not on same axis.

Another characteristics of the present utility model are: offer exhaust port on the cylinder, also be provided with the outlet valve that is connected with the exhaust port of cylinder on fixed frame.

Because cylinder of the present utility model 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.Next is that this novel synchronous rotary compressor processing is simple, is easy to form and produces in enormous quantities.

Description of drawings

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

Fig. 2 is a fundamental diagram of the present utility model.

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 utility model comprises cylinder 4 and is arranged on the air cavity inner cylinder sleeve and is contained in rotor 5 on the live axle 1, also be provided with a slide plate 10 that embeds in the cylinder 4 on the rotor 5, the cylinder 4 that can rotate with rotor 5 is by rack bearing 7 and be fixed on eccentric mounting bearing 2 and be installed on the fixed frame 6, also be provided with the outlet valve 9 that is connected with the exhaust port 8 of cylinder 4 on the fixed frame 6, and cylinder 4 is concentric with fixed frame 6, rotor 5 and cylinder 4 be not on same axle center, and it is installed on the eccentric mounting 3 by bearing 1 and the axle end bearing 1 that is fixed on eccentric mounting 3.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 utility model 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 at that it is positioned at the left part of slide plate 10 on the rotary cylinder 4, machine communicates with the intakeport of synchronous rotation in turning course all the time, and relief opening is located at slide plate 10 right sides, 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 utility model 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 5 and the cylinder 4 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 10 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 tool, 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), in this cylinder (4), be provided with the rotor (5) that is sleeved on the live axle (1), also be provided with the slide plate (10) that can embed in the cylinder (4) on the rotor (5), it is characterized in that: cylinder (4) is arranged in the air cavity of fixed frame (6) and eccentric mounting (3) formation by rack bearing (7) and block bearing (2) respectively, and the central shaft of cylinder (4) and rotor (5) is not on same axis.

2, synchronous rotary compressor tool according to claim 1 is characterized in that: offer exhaust port (8) on the said cylinder (4), also be provided with the outlet valve (9) that is connected with the exhaust port (8) of cylinder (4) on fixed frame (6).