CN2291517Y

CN2291517Y - Oscillating-piston compressor

Info

Publication number: CN2291517Y
Application number: CN 96247057
Authority: CN
Inventors: 谈诚; 江丽华
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-11-23
Filing date: 1996-11-23
Publication date: 1998-09-16
Anticipated expiration: 2006-11-23

Abstract

The utility model discloses an oscillating piston compressor. The machine whose patent classification number is F 01C 9/00 is provided with an oscillating piston which is used for replacing a reciprocating piston, two compressing cylinders are composed of the oscillating piston, and the two compressing cylinders are driven by the same crank link mechanism. The utility model is provided with a unique sealing device, a testing machine is successfully manufactured, tests are conducted, under the condition of same work rotation number, air discharge quantity and air discharge pressure, the new compressor has a simple structure, the exterior and the volume are only one tenth to one fifth of a reciprocating compressor with the same parameter, the corresponding weight and the manufacturing cost can be reduced by times, the new compressor has strong vitality and substituting quality, and the utility model can be used for large, medium and small air compressors and compressors of various air.

Description

Swing piston compressor

The present invention belongs to F01C9/00 according to International Patent Classification (IPC) oscillating-piston machine or prime mover.

The present invention is that the inventor is in manufacturing test oneself invention and 1985, declared in 1986 and invent in the Sino-U.S.'s two state's patents and the two-stroke strokes oscillating piston internal combustion engine of having authorized (China Patent No.: 85100486.5, the U.S. Patent number US4884532) model machine.The compressor of invention has particular structure and advantage, and has possessed the basis of reality as product.

The purpose of invention is that to invent out a kind of air displacement big, and structure is very compact, and the gas compressor that cost is low replaces existing gas compressor with reciprocating, and the test of swing piston compressor model machine has proved this point fully.

The structure of swing piston compressor as shown in Figure 1, extraneous driving machine (middle-size and small-size gas compressor is a motor) drives oscillating-piston [3] through bent axle [1], connecting rod [2], oscillating-piston [3] central shaft hole is press-fitted garden tubular bearing shell [14] and slides on the supporting axle [15], and supporting axle [15] assembling is fixed tightly in the left and right cylinder body.Constitute two swept volumes between oscillating-piston [3] and central housing [4], cylinder head [5], left and right cylinder body, between constitute two airtight volumes with apex sealing strip [9], end face seal bar [10], square profile of tooth end face sealing ring [11], garden annular end face sealing ring [12], cylinder head Stamping Steel Ribbon [13], [6] be suction valve, [7] be outlet valve, cylinder head is arranged a suction valve and an outlet valve corresponding to each volume, and suction valve and exhaust structure are same as the structure of air inlet and exhaust valve in the reciprocal compressor.Above structure is two work chamber of an oscillating-piston control, one week of crankshaft rotating, the process of exhaust that each chamber is all finished an air inlet---compression---.

Oscillating-piston [3] constitutes an integral body with plane, big or small garden cylinder, end face, central shaft hole, link pin supporting base.The corresponding garden of its medium and small garden cylinder and cylinder head [5] cylinder matches, and big garden cylinder and the big garden of central housing [4] cylinder match, and end face and left and right sides cylinder body inner side plane match, and are all sealed with Sealing between the cooperation.

Fig. 2 illustrates the stereogram of Sealing, corresponding diagram 1 is expressed the cooperation between Sealing [9], [10], [11], [12], [13] and oscillating-piston [3], central housing [4], cylinder head [5] and the left and right cylinder body, and Sealing [9], [10], [11], [12], [13] handing-over each other.

Apex sealing strip [9] is the galleyproof type Sealing, the convex shoulder that two ends have on rectangle groove and the end face seal bar [10] matches, for guaranteeing that compressor has good tightness, apex sealing strip [9] contacts with lonely non-of the face in central housing [4] garden, only contacting near the monolateral line of air chamber one side, along with the break-in of counterpart, monolateral line contact will be extended to the face contact gradually.Same end face seal bar [10] contacts with left and right cylinder body inner plane non-planar surface, only near the monolateral line contact of air chamber one side, will be extended to the face contact gradually along with the monolateral line of the break-in of counterpart contacts.

Cylinder head apex sealing strip [13] is a long strip rectangular seal bar, contacts with the little garden of pendulum piston [3] cambered surface under the spring force effect.Apex sealing strip [13] Stamping Steel Ribbon of even numbers, as 6 to 10,3 to 5 are used to seal an air chamber, and 3 to 5 seal another air chambers in addition, and rectangle apex sealing strip [13] contacts with non-of the little garden of oscillating-piston cylinder, and is only contacting near the monolateral line of chamber one side.Along with the break-in of counterpart, monolateral line contact will be extended to the face contact gradually.

Oscillating-piston square profile of tooth end face sealing ring [11] has rectangular teeth and the corresponding rectangle teeth groove of oscillating-piston end face to match, the diameter in the outer garden of rectangular teeth is equal to the diameter of arc outside, the little garden of oscillating-piston, two ends and end face seal bar [10] handing-over, outer Transverse plane fits with left cylinder or right cylinder body inner side plane under spring force promotes.Seal ring [12] two ends and end face seal bar [10] handing-over, outer Transverse plane fits with left cylinder or right cylinder body inner side plane under the spring force effect.The quantity of Sealing [9], [10], [11], [12], [13], except that square profile of tooth end face sealing ring [11] is respectively joined one in the oscillating-piston both ends of the surface, all the other various Sealings can have different quantity configurations according to the size of compressor air-discharging amount and row pressure power.

The various component lubrications of swing piston compressor, can adopt respectively by different structures: the pressure lubrication of (1) oil pump fuel feeding: machine oil passes to the crank axis hole through the bent axle center hole and passes to big end bearing shell, pass to the connecting rod small end bearing shell through the connecting rod center hole, pass to oscillating-piston bearing shell [14] through the wrist pin center hole, finish the lubricated of various parts and take away heat.(2) on the major part FE Tiler of connecting rod [2], oil skipper is housed, when crankshaft link rod motion, oil skipper is scratched pasta thereupon stretching into, lubricant oil is spattered to bent axle [1], connecting rod [2], oscillating-piston [3], central housing [4], each working surface that requires to lubricate of left and right sides cylinder body, the position that respectively rubs is lubricated.(3) requirement according to the user can design non-lubricated compressor.

The cooling of compressor, oscillating-piston adopts oil cooling but, and the left, center, right cylinder block and head adopts water-cooled, and light duty compressor can adopt tap water, and medium-sized and large-scale compressor can be supplied with cooling water through water pump.

Swing piston compressor is compared with the prior art reciprocal compressor, has connecting rod equally, but it is reciprocating that the bent axle of reciprocal compressor, connecting rod drive the garden trunk piston, and the swing piston compressor crankshaft-link rod drives oscillating-piston and makes reciprocally swinging, and forms two working cylinders.Neoteric for this reason swing piston compressor has following advantage: (1) is large-minded, and boundary dimension is little, and identical air displacement and the reciprocal compressor profile volume of comparing can reduce 5 to 10 times, also at double the decline of corresponding weight and manufacture cost.(2) to compare stroke longer for swing piston compressor and reciprocal compressor, and this can improve the exhaust pressure of single stage compressor on the one hand, or reduces the allocating power of driving machine.(3) oscillating-piston is the rectangle working surface, constitutes the rectangle swept volume, is convenient to arrange the inlet and outlet valve, and each air chamber can be arranged a suction valve, and an outlet valve simplifies the structure.(4) swing piston compressor is four connecting rod crank swing-bar mechanisms, add balancer weight and just can accomplish complete equilibrium on bent axle and oscillating-piston, thereby motion is steady, vibration is little.(5) work to be similar to the flywheel storage device in the oscillating-piston running, will be at the high pressure area oscillating-piston with the balance of shaking force gas load, the low pressure area oscillating-piston discharges the energy of storage again, thereby connecting rod and crankshaft bearing is stressed significantly reduces, reduced machine members, improved working life, the mechanical efficiency of swing piston compressor also will be higher than reciprocal compressor.(6) use sliding supported condition between oscillating-piston and the supporting, oscillating-piston and cylinder body do not contact except that Sealing, thereby main part weares and teares for a short time, and the mechanical efficiency height has been eliminated the horizontal whomp of reciprocal compressor piston simultaneously, and mechanical noise reduces.(7) swing piston compressor constitutes two working cylinders by oscillating-piston of a connecting rod driving, does not resemble each piston of reciprocal compressor and cylinder and arranges separately, simplifies the structure greatly.

Swing piston compressor can design two cylinder single stage compressors or two cylinder multistage compressors applicable to the various exhaust pressure of various air displacemenies according to exhaust pressure and height, and existing reciprocal compressor with two cylinder single stage compressors and present plant produced compares:

1, air displacement is a light duty compressor less than 10 cubes of sizes of per minute.Now the V-3/8-1 type compressor of mockup and tested swing piston compressor and Xuzhou chemical machinery head factory production compares.Both have 980 rev/mins of identical rotating speeds, 18.5 kilowatts of air horsepower, exhaust pressure 8 kgf/centimetres ²(0.8MPa).The swing piston compressor air displacement be 4.7 steres/minute, external dimension are long * wide * high=650 * 450 * 650 millimeters, outer molded capacity is 0.19 stere.Xuzhou chemical machinery head factory V-3/8-1 compressor air-discharging amount 3 steres/minute, external dimension length * wide * high=910 * 1160 * 1100 millimeters, outer molded capacity is 1.16 steres, as compare 10.62 times of the external form volume reducing of oscillating-piston light duty compressor by identical air displacement.

2, air displacement is a moderate-duty compressor in per minute 10-60 stere.

Now that the 4L-20/8-G type compressor contrast of oscillating-piston moderate-duty compressor and the production of Wuxi City, Jiangsu Province Compressors Factory is as follows:

Both air displacemenies are the upright meter of per minute 20 sides, exhaust pressure 8 kgf/centimetres ²(0.8MPa), Revolution Per Minute 400 changes, oscillating-piston moderate-duty compressor external dimension length * wide * high=2240 * 1200 * 2330 millimeters, and outer molded capacity=6.26 steres, both compare 6.67 times of oscillating-piston moderate-duty compressor external form volume reducing.

3, air displacement per minute 60 steres are above is large-scale compressor.

Now the 2D12-100/4 type air compressor with oscillating-piston large-scale compressor and the production of Beijing first universal machine works compares, and both air displacemenies are per minute 100 steres, exhaust pressure 4 kgf/centimetres ²(0.4MPa), Revolution Per Minute 500 changes.Oscillating-piston large-scale compressor external dimension length * wide * high=1300 * 1400 * 1850 millimeters, outer molded capacity 3.37 steres, Beijing 2D12-100/4 type air compressor external dimension length * wide * high=5060 * 2070 * 2800 millimeters, outer molded capacity=29.38 steres.Both contrasts, 8.7 times of oscillating-piston large-scale compressor external form volume reducing.

Above comparative illustration swing piston compressor applied range has tangible advantage than prior art reciprocal compressor, and can bring positive effect.

Claims

1, swing piston compressor comprises cylinder block, bent axle, connecting rod, piston, suction valve, critical pieces such as outlet valve, it is characterized in that replacing reciprocating piston with oscillating-piston [3], oscillating-piston [3] and central housing [4], cylinder head [5], left cylinder, right cylinder body constitutes two swept volumes, oscillating-piston [3] is with the plane, size garden cylinder, end face, central shaft hole, even selling supporting base constitutes an integral body, the corresponding garden of its medium and small garden cylinder and cylinder head [5] cylinder matches, big garden cylinder and the big garden of central housing [4] cylinder match, end face and left and right sides cylinder body inner side plane match, oscillating-piston [3] central shaft hole is press-fitted garden tubular bearing shell [14] and slides on the supporting axle [15], the supporting axle assembling is fixed tightly in the cylinder body of the left and right sides, use apex sealing strip [9] between movement parts and the fixed block, end face seal bar [10], square profile of tooth end face sealing ring [11], garden annular end face sealing ring [12], cylinder head Stamping Steel Ribbon [13] is sealed, apex sealing strip [9] is the long strip Sealing, the convex shoulder that two ends have on rectangle groove and the end face seal bar [10] matches, the lonely face in apex sealing strip [9] and central housing [4] garden contacts under the spring force effect, end face seal bar [10] is under the spring force effect, contact with left cylinder or right inner surface of cylinder block, cylinder head Stamping Steel Ribbon [13] is a long strip rectangular seal bar, under the spring force effect and the lonely face of the little garden of oscillating-piston [3] post contact, square profile of tooth end face sealing ring [11] has rectangular teeth and the corresponding rectangle teeth groove of oscillating-piston end face to match, the diameter in the outer garden of square profile of tooth is equal to the diameter in the outer garden of the little garden orphan of oscillating-piston, two ends and end face seal bar [10] handing-over, the outer Transverse plane of square profile of tooth end face sealing ring [11] fits with left cylinder or right cylinder body inner side plane under the spring force effect, styletable face seal ring [12] two ends, garden and end face seal bar [10] handing-over, outer Transverse plane fits with left cylinder or right cylinder body inner side plane under the spring force effect, square profile of tooth end face sealing ring [11] respectively disposes one in the oscillating-piston both ends of the surface, all the other various Sealings [9], [10], [12], [13] size according to compressor air-discharging amount and exhaust pressure can have different quantity configurations.

2, according to the described swing piston compressor of claim 1, it is characterized in that the lonely face in the interior garden of apex sealing strip [9] and central housing [4] is only contacting near the monolateral line of air chamber one side, end face seal bar [10] is only contacting near the monolateral line of air chamber one side with left cylinder or right cylinder body inner plane, cylinder head Stamping Steel Ribbon [13] is contacting near the monolateral line of air chamber one side with the lonely face in the little garden of oscillating-piston respectively with the Stamping Steel Ribbon of even numbers, the apex sealing strip [13] of half quantity of every limit.