CN101476552B

CN101476552B - Multi-cylinder translation compression device

Info

Publication number: CN101476552B
Application number: CN2009101148147A
Authority: CN
Inventors: 陈君立; 阮勤江; 倪桂樵; 于军
Original assignee: Zhejiang Hongyou Compressor Manufacturing Co Ltd
Current assignee: Zhejiang Hongyou Compressor Manufacturing Co Ltd
Priority date: 2009-01-06
Filing date: 2009-01-06
Publication date: 2011-09-07
Anticipated expiration: 2029-01-06
Also published as: CN101476552A; WO2010078739A1

Abstract

The invention relates to a multi-cylinder translational compression device, which belongs to the technical field of displacement compressors. A piston is connected to a crankshaft driven by a main shaft of an electric motor, and reciprocates in the vertical direction relative to a cylinder body. The cylinder body and the piston reciprocate in the horizontal direction inside a sliding chute consisting of an upper cover board and a lower cover board, and the cylinder body is open or enclosed. The cover boards, the cylinder cover, the cylinder body and the piston are provided with an air-intake passage, an air-exhaust passage, an air-intake valve, an air-exhaust valve and corresponding sealing devices respectively. The multi-cylinder translational compression device has the advantages of small size, high working efficiency, low noise, good sealing performance and long service life, and capability of being popularized and applied in the field of air compressors or hydraulic pumps.

Description

Multi-cylinder translation compression device

Technical field

The invention belongs to the technical field of positive displacement compressor, refer in particular to a kind of multi-cylinder translation compression device.

Background technique

At present, though general reciprocating piston air compressor is of a great variety, structure is similar, be exactly that motor is by the bent axle outputting power, come pressurized gas or liquid acting by the to-and-fro motion in cylinder of connecting rod driven plunger, to produce pressurized air or highly pressurised liquid, but there are many defectives in this compressor: because the mode that cylinder of compressor and frame all adopt mutual positioning instant not move, the cylinder of compressor of this structure is subjected to lateral force bigger, the one, what lateral force formed is idle work, the power of compressor is diminished, and mechanical efficiency is low; The 2nd, compression stroke is longer, and eccentric mass is big, and the vibration that lateral force causes or the amplitude of resonance are big, and the noise of compressor is big, and working life is short; Three is that the motor of a compressor only drives one or two pistons work, complex structure by connecting rod; The 4th, because the lateral force that bent axle and piston are subjected to is bigger, piston ring is easy to wear, causes the sealability variation.

Summary of the invention

The purpose of this invention is to provide a kind of good airproof performance, noise is little, mechanical efficiency is high, the multi-cylinder translation compression device of long service life.

The object of the present invention is achieved like this:

Multi-cylinder translation compression device, it is characterized in that: comprise motor, main shaft, bent axle, piston, chute and the cylinder body formed of cover plate up and down, on the bent axle that electric machine main shaft drives, be connected with the piston more than a group, piston is done the to-and-fro motion of above-below direction with respect to cylinder body, cylinder body and piston are done the to-and-fro motion of left and right directions again under the restriction of cover plate up and down, be respectively arranged with on the cover plate up and down, the exhaust passage, advancing, be respectively arranged with in the exhaust passage into, drain tap, described cylinder body is the upper and lower opening formula, at this moment, cylinder body, piston forms two compression chambers with cover plate up and down, at cylinder body and be provided with seal arrangement up and down between the cover plate, described cylinder body also can be for partly or entirely closed, promptly be fixed with cylinder cap up and down respectively at the upper and lower opening place of cylinder body, at this moment, cylinder body, piston forms two compression chambers with cylinder cap up and down, up and down on the cylinder cap or/and cylinder body and piston be provided with into, exhaust passage and advancing, drain tap and corresponding seal arrangement.

Between the axis of the axis of above-mentioned main shaft and bent axle, has a throw of eccentric.

Be provided with the oil pocket that fills lubricant oil that can be lubricated the cylinder body and the surface of contact of cover plate up and down at the outer surface of above-mentioned cylinder body.

The left and right sides of the cylinder body outside above-mentioned cylinder body is respectively arranged with left and right sides compression chamber, the left and right sides in the cylinder body outside made structure of piston or be connected with left and right sides piston in the compression chamber of the left and right sides in the left and right sides in the cylinder body outside respectively, on the cover plate of the left and right sides of left and right sides compression chamber, be respectively arranged with the inlet and outlet passage, in the inlet and outlet passage, be respectively arranged with the inlet and outlet valve.

The outlet port of above-mentioned inlet and outlet passage on cover plate and left and right sides cover plate up and down is respectively arranged with the inlet and outlet joint.

The outstanding compared to existing technology advantage of the present invention is:

1, volume is little, mechanical efficiency is high: the present invention adopts piston and the cylinder body installed on the compressor crank shaft can form two or four compression chambers, make motor under the situation of same power consumption, drive two or four cylinder actings, make piston and cylinder body concentrated relatively, the overall volume of compressor is little, the mechanical efficiency height;

2, noise is low: the present invention is owing to adopt piston and cylinder body translation technology, rationally utilize or reduced because the bump that the straight line motion of piston causes the lateral force of cylinder body, and because compression stroke is shorter, make that the pulsation time of gas in cylinder body is short, the vibrations time is short, low in energy consumption, and then make the noise of compressor lower;

3, good airproof performance: the present invention since piston and cylinder body in compression process balance lateral force, make the operating steadily of piston body, light with the friction of cylinder inner wall, wear of piston-rings is few, good airproof performance;

4, structure of the present invention can be applicable at air compressor or oil hydraulic pump field.

Description of drawings

Fig. 1 is the partial sectional view of the embodiment of the invention 1;

Fig. 2 is that the A-A of Fig. 1 is to sectional view;

Fig. 3 is the cutaway view Amplified image of the embodiment of the invention 2;

Fig. 4 is the cutaway view Amplified image of the embodiment of the invention 3;

Fig. 5 is the cutaway view Amplified image of the embodiment of the invention 4;

Fig. 6 is the cutaway view Amplified image of the embodiment of the invention 5;

Fig. 7 is the cutaway view Amplified image of the embodiment of the invention 6;

Fig. 8 is that A cylinder exhaust of the present invention finishes, the schematic representation of the air-breathing end of B cylinder;

Fig. 9 is the schematic representation of A cylinder breathing process of the present invention, B cylinder exhaust process;

Figure 10 is the schematic representation of A cylinder exhaust process of the present invention, B cylinder breathing process;

Figure 11 is the schematic representation that the air-breathing end of A cylinder of the present invention, the exhaust of B cylinder finish.

Embodiment

With specific embodiment the present invention is further described below:

Embodiment 1: referring to Fig. 1-2:

Multi-cylinder translation compression device, comprise motor 10, main shaft 11, bent axle 12, piston, cover plate 40 up and down, 41 chute and the cylinder bodies of forming 30, on the bent axle 12 that electric machine main shaft 11 drives, be connected with one group of

piston

21,22, certainly, also two groups or more groups of pistons can be set on bent axle 12, be provided with when organizing piston more, the axis of every group of piston should intersect uniform setting on the axis of main shaft,

piston

21,22 do the to-and-fro motion of above-below direction with respect to cylinder body 30, cylinder body 30 and

piston

21,22 again at cover plate 40 up and down, do the to-and-fro motion of left and right directions under 41 the restriction, at cover plate 40 up and down, be respectively arranged with on 41 into, exhaust passage 401,402,411,412, advancing, exhaust passage 401,402,411, be respectively arranged with in 412 into, drain tap, described cylinder body 30 is the upper and lower opening formula, at this moment, cylinder body 30,

piston

21,22 with cover plate 40 up and down, 41 form two

compression chambers

81,82, at cylinder body 30 and cover plate 40 up and down, be provided with seal arrangement 50 between 41, at

piston

21,22 are provided with piston ring 51, cover plate 40 up and down, 41 with positioning seat 101 relative fixed of motor 10, between the axis 121 of the axis 111 of above-mentioned electric machine main shaft 11 and bent axle 12, has an eccentric distance e, being provided with at the outer surface of above-mentioned cylinder body 30 can be to cylinder body 30 and cover plate 40 up and down, the oil pocket that fills lubricant oil 70 that 41 surface of contact is lubricated is in advancing of above-mentioned cover plate up and down, the outlet port of exhaust passage is respectively arranged with into, exhaust joint.

Motor 10 work,

drive piston

21,22 by main shaft 11 and bent axle 12 and in cylinder body 30, do pumping with respect to cylinder body 30, and under the restriction of cylinder body 30 and

piston

21,22

cover plate

40,41 about being subjected under the drive of the lateral force of bent axle 12, do left and right sides translation.

Embodiment 2: referring to Fig. 3 and Fig. 1-2:

The basic structure of present embodiment is substantially the same manner as Example 1, its difference is: above-mentioned cylinder body 30 also can be for partly or entirely closed, promptly be fixed with all enclosed cylinder cap 31 up and down respectively at the upper and lower opening place of cylinder body 30,32, at this moment, cylinder body 30,

piston

21,22 with cylinder cap 31 up and down, 32 form two

compression chambers

81 and 82, at cylinder cap 31 up and down, on 32 with cover plate 40 up and down, 41 advance, exhaust passage 401,402,411,412 corresponding part is provided with into, exhaust port is at cylinder cap 31 up and down, 32 advance, exhaust port and cover plate 40 up and down, 41 advance, exhaust passage 401,402,411, be respectively arranged with outside 412 into, the seal arrangement 52 of exhaust passage.

Motor 10 work,

drive piston

21,22 by main shaft 11 and bent axle 12 and in cylinder body 30, do pumping with respect to cylinder body 30, and cylinder body 30, up and down cylinder cap 31,32 and

piston

21,22 under the restriction that is subjected to cover

plate

40,41 up and down under the drive of the lateral force of bent axle 12, do left and right sides translation, this structure helps the sealing structure of

compression chamber

81,82 up and down.

Embodiment 3: referring to Fig. 4 and Fig. 1-2:

The basic structure of present embodiment is substantially the same manner as Example 1, its difference is: the left and right sides of the cylinder body 30 outside above-mentioned cylinder body 30 is respectively arranged with left and right

sides compression chamber

83,84, structure of piston is made in the left and right sides in cylinder body 30 outsides, at left and right

sides compression chamber

83,84 left and right sides cover plate 42, also be respectively arranged with on 43, exhaust passage 421,422,431,432, advancing, exhaust passage 421,422,431, be respectively arranged with in 432 into, drain tap, advancing on above-mentioned left and right sides cover plate, exhaust passage 421,422,431,432 outlet port is respectively arranged with into, exhaust joint, certainly, this structure also can be transformed into the compressor arrangement of cylinder cap up and down on embodiment 2 basis.

Motor 10 work,

drive pistons

21,22 by main shaft 11 and bent axle 12 and in cylinder body 30, make pump pressurized gas or liquid with respect to cylinder body 30, cylinder body 30 and

piston

21,22 are subjected to the restriction of

cover plate

40,41 up and down to do left and right sides translation under the drive of the lateral force of bent axle 12 simultaneously, the left and right sides translation of cylinder body 30, form the variation of left and right

sides compression chamber

83,84 internal volumes again, reached the purpose of in left and right

sides compression chamber

83,84 pressurized gas or liquid.

Embodiment 4: referring to Fig. 5:

The basic structure of present embodiment and embodiment's 3 structure is basic identical, and its difference is: just be connected with the left and right sides piston 23,24 in left and right

sides compression chamber

83,84 respectively in the left and right sides in cylinder body 30 outsides.

Motor 10 work,

drive pistons

piston

21,22 are subjected to the restriction of

cover plate

40,41 up and down to do left and right sides translation under the drive of the lateral force of bent axle 12 simultaneously, the left and right sides translation of cylinder body 30, drive left and right sides piston 23,24 pressurized gas or liquid in left and right

sides compression chamber

83,84 again, this structure on making than being easier to.

Embodiment 5: referring to Fig. 6:

The basic structure of present embodiment and embodiment's 1 structure is basic identical, its difference is: gas-entered passageway 403 is being set on cylinder body and the piston, on the cover plate exhaust passage 404 is being set up and down, certainly, on the inlet and outlet passage, also be respectively arranged with inlet and outlet valve (not drawing among the figure), gas-entered passageway 403 be set on cylinder body and piston help heat radiation cylinder body and piston.

Embodiment 6: referring to Fig. 7:

The basic structure of present embodiment and embodiment's 3 structure is basic identical, its difference is: intake duct 403 is set on cylinder body and piston, air outlet flue 404 and outlet pipe are set on cylinder cap, be reserved with the outlet pipe activity space at the middle part of cover plate up and down, cylinder cap is during with the translation of the cylinder body left and right sides, outlet pipe can activity in the opening 405 on the cover plate up and down, and this structure helps the sealing to cylinder body.

Certainly, also cylinder cap can be arranged to partially enclosed formula, also can be arranged to movement of cylinder block, the fixed structure of piston.

Fig. 8-11 has provided working procedure of the present invention, wherein:

Fig. 8 represents: the exhaust of A cylinder finishes, the air-breathing end of B cylinder;

Fig. 9 represents: A cylinder breathing process, B cylinder exhaust process;

Figure 10 represents: A cylinder exhaust process, B cylinder breathing process;

Figure 11 represents: the air-breathing end of A cylinder, the exhaust of B cylinder finish.

The foregoing description is one of preferred embodiment of the present invention only, is not to limit protection scope of the present invention according to this, so: all equivalences of doing according to structure of the present invention, shape, principle change, and all should be covered by within protection scope of the present invention.

Claims

1. multi-cylinder translation compression device, it is characterized in that: comprise motor, main shaft, bent axle, piston, chute and the cylinder body formed of cover plate up and down, on the bent axle that electric machine main shaft drives, be connected with the piston more than a group, piston is done the to-and-fro motion of above-below direction with respect to cylinder body, cylinder body and piston are done the to-and-fro motion of left and right directions again under the restriction of cover plate up and down, be respectively arranged with on the cover plate up and down, the exhaust passage, advancing, be respectively arranged with in the exhaust passage into, drain tap, described cylinder body is the upper and lower opening formula, at this moment, cylinder body, piston forms two compression chambers with cover plate up and down, at cylinder body and be provided with seal arrangement up and down between the cover plate, described cylinder body also can be for partly or entirely closed, promptly be fixed with cylinder cap up and down respectively at the upper and lower opening place of cylinder body, at this moment, cylinder body, piston forms two compression chambers with cylinder cap up and down, up and down on the cylinder cap or/and cylinder body and piston be provided with into, exhaust passage and advancing, drain tap and corresponding seal arrangement.

2. multi-cylinder translation compression device according to claim 1 is characterized in that: have a throw of eccentric between the axis of the axis of described main shaft and bent axle.

3. multi-cylinder translation compression device according to claim 1 is characterized in that: be provided with the oil pocket that fills lubricant oil that can be lubricated the cylinder body and the surface of contact of cover plate up and down at the outer surface of described cylinder body.

4. multi-cylinder translation compression device according to claim 1, it is characterized in that: the left and right sides of the cylinder body outside described cylinder body is respectively arranged with left and right sides compression chamber, the left and right sides in the cylinder body outside made structure of piston or be connected with left and right sides piston in the compression chamber of the left and right sides in the left and right sides in the cylinder body outside respectively, on the cover plate of the left and right sides of left and right sides compression chamber, be respectively arranged with the inlet and outlet passage, in the inlet and outlet passage, be respectively arranged with the inlet and outlet valve.

5. according to claim 1 or 3 described multi-cylinder translation compression devices, it is characterized in that: the outlet port of the inlet and outlet passage on described cover plate up and down and left and right sides cover plate is respectively arranged with the inlet and outlet joint.