CN2329794Y

CN2329794Y - Backpressure arc isolation vane rolling piston compressor

Info

Publication number: CN2329794Y
Application number: CN 98215779
Authority: CN
Inventors: 傅云树
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-06-14
Filing date: 1998-06-14
Publication date: 1999-07-21
Anticipated expiration: 2008-06-14

Abstract

The utility model relates to a rolling piston compressor with backpressure arc isolation vanes, which is formed by assembling a core shaft and an air cylinder assembly in a casing. The utility model has the technical characteristics that the arc sheet-shaped isolation vanes are arranged on the position of the front end of an arc backpressure groove arranged on the inner wall of a cylinder barrel of the air cylinder in longitudinal direction. The back end part of the backpressure groove is provided with at least one backpressure air-current pipe with a one-way cut-off valve communicated with an inner cavity of the cylinder barrel so as to cause the back end face of the isolation vanes to be pushed and pressed by the compressed air entering the backpressure groove all the time and cause the front end face of the isolation vane to be tightly contacted with a rolling ring. The utility model has the advantages of compact and reasonable structure of the complete machine, small volume, light weight, good manufacturability, stable running, no noise, small power consumption and long service life.

Description

Back pressure circular arc isolated blade rolling piston compressor

The utility model relates to the air compressor that is used for automobile, refrigerator, refrigerator-freezer, domestic air conditioning, central air-conditioner, especially a kind of back pressure circular arc isolated blade rolling piston compressor.

Being seen in the market rolling piston compressor is to adopt the eccentric rolling ring of straight isolated blade roof pressure with pressurized air.Straight isolated blade is to be fitted in the straight elongated slot of vertically offering on the special vertically straight long Long Bi that is provided with of cylinder barrel outer wall one side of its cylinder.For making straight isolated blade tightly withstand rolling ring, just in the straight elongated slot of cylinder barrel Long Bi, install spring with the straight isolated blade of roof pressure.The straight long Long Bi of projection has increased its processing technology difficulty greatly on the cylinder barrel outer wall.This structural design scheme must cause that machine volume is huge, the processing of component and assembly technology complexity; The Long Bi of cylinder barrel also makes between cylinder barrel and other component sealing technology more difficult, adopts the machine shell sealing then so used this type of compressor all must not be.Due to the said structure characteristics, during used compressor operating vibrations big, power consumption is high, spring is fragile and make complete machine short working life, and is difficult to reduce production costs.

The cylinder barrel that the purpose of this utility model provides a kind of cylinder does not have Long Bi, isolated blade need not used the spring ejection, component structural is reasonable in design, compact, processing technology is simple, assembling, easy to maintenance, machine volume is little, in light weight, the operation power consumption is little, noise is low, shockproof, the novel back pressure circular arc isolated blade rolling piston compressor that uses Shou Yongchang and low production cost.

This new type compressor also is by mandrel, cylinder assembly is fitted in the housing and constitutes, its housing is by thimble, at the bottom of the shell and cap constitute, the inlet hole piecing devices are on thimble, the air outlet hole piecing devices are at the bottom of the shell, cylinder assembly is by cylinder barrel, cylinder bottom, cylinder cap and the rolling ring that is fitted in the cylinder barrel, eccentric wheel, isolated blade and mandrel are formed, eccentric wheel is packed on the inner axle rank of mandrel with biasing core hole, rolling ring is contained on the eccentric cylindrical with the core borehole jack, the heavy seat of bearing outer ring equipped on the pillow block of the inner axle of mandrel two ends, rank is in the core hole of cylinder bottom and cylinder cap, cylinder bottom and cylinder cap are encapsulated in respectively on the cylinder barrel both ends of the surface, inlet hole on the cylinder barrel is communicated with inlet hole joint on the thimble, air outlet hole on the cylinder bottom is communicated with air outlet joint at the bottom of the shell, belt pulley is packed on the external end head position of mandrel, the characteristics of this new type compressor maximum are the straight long Long Bi that has not had the device isolated blade on the cylinder barrel of cylinder, our technical measures are: described isolated blade is to be the laminar body that cross section is a circular arc, the front-end face of isolated blade is being replaced the outer side surface of rolling ring, the rearward end of isolated blade is fitted in vertically to be offered on the cylinder barrel sidewall bodies, opening is located on the inner wall of cylinder face, it is other to be positioned at inlet hole, in the front end position of cross section and the corresponding circular arc back pressure of isolated blade circular arc groove, the rearward end of circular arc back pressure groove has at least a device to have the back pressure flow pipe of unidirectional stop valve that it is communicated with the cylinder barrel inner chamber, the termination mouth that immediate shipment is equipped with the back pressure flow pipe of unidirectional stop valve is connected on the position, rear end of circular arc back pressure groove, and the other end draught animals connects and is located on the inner wall of cylinder, carry over circular arc back pressure groove rotation direction backward, on arbitrary position of 90 ° in notch～180 ° of scopes.

This new type compressor has been got rid of the straight long Long Bi on the cylinder barrel sidewall, and the processing technology that this has just improved cylinder barrel and related components fully significantly reduces cost of production, and the volume and weight of complete machine is less than and shows with type with 2/3 of power machine.This new type compressor just can be implemented sealing effectively when the assembling of cylinder assembly, the structure of complete machine is compact more, reasonable, is more conducive to assembling and maintenance.Isolated blade in the new architecture is fitted in the circular arc back pressure groove on the cylinder barrel sidewall bodies, after compressor enters working state, the pressurized air that the ear end face of isolated blade is passed in the back pressure groove is all the time pushing, its front-end face is tightly pasted touching rolling ring, because the compressive characteristics of air, mutual frictional force between isolated blade and rolling ring almost can be ignored, this new type of compression operates steadily when working, noiseless, it is very little to consume moving rate, adding does not have quick-wear part substantially in the machine, so be higher than used compressor of the same type working life far away.

Below in conjunction with accompanying drawing specific embodiments of the present utility model is described in detail:

Fig. 1 is a general structure view of the present utility model;

Fig. 2 is each part assembling condition cross sectional representation in the cylinder.

(3), cap (9) all can be made of lightweight materials such as aluminum alloys at the bottom of thimble in this new type of compression engine housing (1) and the shell, and cylinder barrel in the cylinder (2) and cylinder bottom (4), cylinder cap (8) are then used wear-resistant material manufacturings such as boron cast iron or oil-containing spheroidal graphite cast iron.For reducing eccentric wheel (5) biasing weight partly, preferably as much as possible its offset body intermediate portion fluting excision and hollow out are handled, as long as can guarantee its mechanical strength.Eccentric wheel (5) is packed on the mandrel (6), play should not take place, and avoids occurring impact noise.Rolling ring (7) can cooperate assembling by rolling with eccentric wheel (5), so that rolling ring (7) can uniform wear.Belt pulley (10) technology routinely is packed on mandrel (6) the external end head position.Isolated blade (11) can cut into cylindric by specification earlier, and through Quenching Treatment, grinding-polishing cuts into the standard sheet again.It is matrix that circular arc back pressure groove (12) on cylinder barrel (2) sidewall bodies promptly can be used isolated blade (11), forms with the linear cutting machine cutting.The effect of the unidirectional stop valve on the back pressure flow pipe (15) is to stop the pressurized air that enters in the circular arc back pressure groove (12) in back pressure flow pipe (15) flows backwards go back to cylinder barrel (2) chamber, remains the thrust of groove compressed air to isolated blade (11) ear end face.On the position, rear end of circular arc back pressure groove (12), perhaps can also install one or two augmented thrust reed, when inserting in the circular arc back pressure groove (12) deeply, play the auxiliary forward effect of releasing of isolated blade in order to isolated blade (11).(3) go up the air outlet hole joint (14) of device all by now using Process configuration at the bottom of inlet hole joint (13) that installs on thimble (1) sidewall and the shell.

Claims

1, a kind of back pressure circular arc isolated blade rolling piston compressor, it is by mandrel (6), cylinder assembly is fitted in the housing and constitutes, its housing is by thimble (1), (3) and cap (9) constitute at the bottom of the shell, inlet hole joint (13) device is on thimble (1), air outlet hole joint (14) device is on (3) at the bottom of the shell, cylinder assembly is by cylinder barrel (2), cylinder bottom (4), cylinder cap (8), rolling ring (7), eccentric wheel (5), isolated blade and mandrel (6) are formed, eccentric wheel (5) is packed on the inner axle rank of mandrel (6) with biasing core hole, rolling ring (7) is contained on the cylindrical of eccentric wheel (5) with the core borehole jack, the heavy seat of bearing outer ring equipped on the pillow block of the inner axle of mandrel (6) two ends, rank is in the core hole of cylinder bottom (4) and cylinder cap (8), inlet hole on the cylinder barrel (2) is communicated with inlet hole joint (13) on the thimble (1), air outlet hole on the cylinder bottom (4) is communicated with air outlet hole joint (14) on (3) at the bottom of the shell, belt pulley (10) is packed on the external end head position of mandrel (6), it is characterized in that: described isolated blade (11) is that cross section is the laminar body of circular arc, the front-end face of isolated blade (11) is being replaced the outer side surface of rolling ring (7), the rearward end of isolated blade (11) is fitted in vertically to be offered on cylinder barrel (2) sidewall bodies, opening is located on cylinder barrel (2) internal face, it is other to be positioned at inlet hole, in the front end position of cross section and isolated blade (11) circular arc corresponding circular arc back pressure groove (12), the rear portion of circular arc back pressure groove (12) has at least a device to have the back pressure flow pipe (15) of unidirectional stop valve to be communicated with cylinder barrel (2) inner chamber, one termination mouth of back pressure flow pipe (15) is connected on the position, rear end of circular arc back pressure groove (12), and the other end draught animals is connected on cylinder barrel (2) inwall and carries over circular arc back pressure groove (12) rotation direction backward, on arbitrary position of 90～180 ° of scopes of notch.

2, a kind of back pressure circular arc isolated blade rolling piston compressor according to claim 1, it is characterized in that: on the position, rear end of circular arc back pressure groove (12), perhaps device has the augmented thrust reed.