CN2308722Y

CN2308722Y - Air compressor

Info

Publication number: CN2308722Y
Application number: CN 97237405
Authority: CN
Inventors: 刘之政
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-07-19
Filing date: 1997-07-19
Publication date: 1999-02-24
Anticipated expiration: 2007-07-19

Abstract

The utility model relates to an air compressor, which comprises an air cylinder and a hydraulic gas compression device communicated with the air cylinder in the form of air. The air cylinder is provided with a barometer, a safety valve, a compressed air delivery valve road wheels. The noise of the compressor is lower than 50 dbs, and the energy consumption of the compressor is less.

Description

Air compressor

The utility model relates to a kind of air compressor, is used for the tire aerating, gas atomization, aerodynamic force machinery, fields such as the interior material aerodynamic force transportation of pipe.

At present, air compressor by gas receiver, be loaded on the gas receiver and be the device of calming the anger that gas is communicated with and form with it, on gas receiver, be equiped with safety valve, barometer, pressurized gas delivery valve and road wheel.The device of calming the anger mostly is the curved shaft type structure, and its air cylinder is a single cylinder, and it is reciprocating that bent axle drives displacer, constantly sends into pressurized gas in gas receiver.This reciprocating motion of the pistons stroke is short, the requirement movement velocity is fast, and under unit time equal-wattage initial conditions, per minute is calmed the anger about 700 times, comprise that suction stroke has 1400 motions, the abrasion loss is big, and energy consumption is big, simultaneously because movement velocity is fast, gone out valve port by paroxysmal pressurized gas in the pneumatic cylinder and expand, produce bigger pneumatic noise, bent axle rapid movement in addition, noise is bigger.

The purpose of this utility model just is: design a kind of low noise, low-loss energy saving and environment friendly air compressor.

The utility model is to realize its purpose like this: this compressor includes gas receiver, be the device of calming the anger that gas is communicated with gas receiver, be equiped with barometer, safety valve, pressurized gas delivery valve and road wheel on gas receiver, the device of calming the anger is the hydraulic type gas compressing apparatus.

The utility model can also be realized its purpose like this, the hydraulic type gas compressing apparatus is by left and right air cylinder, be loaded on oil hydraulic cylinder therebetween, be loaded on the left and right cylinder head on its termination, be loaded on the left and right displacer in it respectively, be loaded on the hydraulic piston in the oil hydraulic cylinder, the piston rod of dress left and right displacer of connection and hydraulic piston, be installed in the fuel tank of oil hydraulic cylinder periphery, adorn the oil pump of connection mutually with motor, hydraulic pressure changement that is communicated with oil pump and the oil pipe that is communicated with oil pump, fuel tank, hydraulic pressure changement and oil hydraulic cylinder are formed.

Be equiped with Sealing between piston rod of the present utility model and left and right air cylinder, the oil hydraulic cylinder.

The utility model hydraulic pressure changement is made up of selector valve, bypass relief valve, is communicated with by oil pipe each other.

Designing respectively on left and right air cylinder of the present utility model and the left and right cylinder head has the air suction valve, is communicated with the once compression air valve of gas receiver, the secondary compression High-pressure air valve.

The left and right air cylinder of the utility model, oil hydraulic cylinder are supported on the gas receiver by being anchored on left and right support plate, and motor, oil pump, hydraulic pressure changement are supported on the support on the left and right support plate top.

Owing to the utlity model has said structure, design has the hydraulic type gas compressing apparatus as calming the anger device, air cylinder is divided into left and right two cylinders, the thrust and the pulling force of hydraulic pressure output are very big, promote and the pulling displacer reciprocating, the conventional curved shaft type of its reciprocating stroke ratio is calmed the anger, and to drive the stroke of displacer movement long for device, and reciprocal process all produces pressurized gas, under identical power initial conditions of unit time, the more conventional air compressor of compression tolerance of output is many.This compressor is done to-and-fro motion at a slow speed under hydraulic drive simultaneously, and times of exercise is few, significantly reduces with the casing wall frictional loss, and corresponding power consumption reduces, and saves energy.Owing to be a kind of slow compression process, valve port is impacted in the burst of the pressurized gas of generation and the airflow noise that expands is little and even, and noise reduces greatly, generally is lower than 50 decibels, and motor, the oil pump noise of required usefulness are little simultaneously, realize the purpose of protection environment.

Further described below in conjunction with drawings and Examples, but be not limited only to this.

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

Fig. 2 is the A-A sectional view of the utility model Fig. 1;

Fig. 3 is the plan view (part) of the utility model Fig. 1.

As shown in FIG., this compressor includes gas receiver 40, is the device of calming the anger that gas is communicated with gas receiver 40, is equiped with barometer 35, safety valve 36, pressurized gas delivery valve 34 and road wheel 37 on gas receiver 40.The device of calming the anger is a kind of hydraulic type gas compressing apparatus, this device is by left air cylinder 1, right air cylinder 9, be loaded on the oil hydraulic cylinder 17 between this two air cylinder, be loaded on left cylinder head 3 and right cylinder head 11 on this two air cylinders termination, be loaded on left displacer 2 and right displacer 10 in two air cylinders respectively, be loaded on the hydraulic piston 18 in the oil hydraulic cylinder 17, the left displacer 2 of dress connection, the piston rod 24 of right displacer 10 and hydraulic piston 18, be installed in the oil hydraulic cylinder 17 outer annular fuel tanks of placing 25, adorn the gear oil pump 28 that joins mutually with motor 32, hydraulic pressure changement 29 that is communicated with oil pump 28 and connection fuel tank 25, oil pump 28, the oil pipe 19 of hydraulic pressure changement 29 and oil hydraulic cylinder 17,20,26,27,30 form, a left side, right displacer 2,10 area respectively is 10-30 a times of hydraulic piston area, can produce better effects like this.Be equiped with Sealing 22,22a, 23,23a between piston rod 24 and left and right air cylinder 1,9, the oil hydraulic cylinder 17.Hydraulic pressure changement 29 is made up of selector valve 29a, bypass relief valve 31a, 31b, is communicated with oil pipe each other.Oil hydraulic cylinder 17, fuel tank 25, gear oil pump 28, selector valve 29a, relief valve 31a, 31b so is communicated with (identical with general hydraulic system mode of communicating), fuel sucking pipe 26 1 ends are communicated with fuel tank 25, the other end is communicated with gear oil pump 28, be communicated with by oil pipe 30 between gear oil pump 28 and the selector valve 29a, one of selector valve 29a passes in and out oil pipe 20 with the right side of oil hydraulic cylinder 17 and is communicated with, another is communicated with the left side turnover oil pipe 19 of oil hydraulic cylinder 17, selector valve 29a is connected to bypass left side relief valve 31a and right relief valve 31b by oil pipe, selector valve 29a also is communicated with return tube 27 by oil pipe, and return tube 27 is communicated with fuel tank 25 again.At work, when the increased pressure of 18 1 sides of the hydraulic piston in the oil hydraulic cylinder 17, impel connection to increase by the oil pressure in the pipe, impel the turnover direction of the automatic conversion oil of selector valve 29a of hydraulic pressure changement 29, thereby impel hydraulic piston 18 conversion moving direction, promote and pulling pneumaticpiston 2,10 conversion moving direction, thereby realize to-and-fro motion.The device of calming the anger of this compressor has two kinds of working methods, when needing the big flow gas of 2-8 atmospheric lowpressure, design is on a left side, right air cylinder 1,9 and left, right cylinder head 3, air inlet valve 4 on 11,12, secondary compression High-pressure air valve 7,15 is common suction valve, all as air inlet, four that are communicated with gas receiver 40 are once compressed air valve 5,6,13,14 all as valve from a pressurized gas to gas receiver 40 that carry, hydraulic piston 18 drives a left side, right displacer 2,10 is reciprocating, the pressurized gas that produces constantly enters gas receiver 40, and from 34 outputs of pressurized gas delivery valve.When 8 barometric pressure of needs during with upward pressure, once compress the suction port of air valve 6,14 as air inlet in left and right air cylinder 1,9, when each piston during to right lateral, the air inlet valve 4 of left side displacer 2 left side air chambers is opened, ambient air enters air chamber, once compressing air valve 5 closes, the once compression air valve 6 of left side displacer 2 the right air chambers is closed, secondary compression High-pressure air valve 7 is washed open by the pressurized gas of secondary compression, under hydraulic piston 18 pullings, a pressurized gas that sucks from gas receiver 40 in left side displacer 2 compression strokes last time, the output pressurized gas.Meanwhile, the air inlet valve 12 of right displacer 10 the right air chambers cuts out, once compressing air valve 13 opens, entered this air chamber last time in the stroke air is pressed into gas receiver 40, i.e. pressurized gas, the once compression air valve 14 of right displacer 10 left side air chambers is opened, secondary compression High-pressure air valve 15 is closed, a pressurized gas in the gas receiver 40 enters in the left side air chamber of this right side displacer 10, when this piston walks to terminal point, hydraulic pressure raises in the oil hydraulic cylinder 17, under the effect of hydraulic pressure changement 29, hydraulic piston 18 reversing motions drive displacer 2,10 also synchronous backward motions, after this just repeat aforementioned process, a left side, right air cylinder 1,9 and left, right cylinder head 3, each air valve on 11 is just made opposite action, once compresses air valve 6 and opens, and secondary compression High-pressure air valve 7 is closed, secondary compression High-pressure air valve 15 is washed open by the high pressure air of secondary compression, the output high-pressure air.When adopting this working method, the pressurized gas delivery valve 34 of gas receiver 40 cuts out, and does not outwards export pressurized gas one time, and secondary compression High-pressure air valve 7,15 is alternately exported high pressure air.In this process, the ambient air that the thrust promotion displacer of hydraulic piston 18 will enter in the air cylinder once compresses, the pulling force pulling displacer that hydraulic piston 18 produces carries out secondary compression to a pressurized gas that is entered by gas receiver 40 in the air cylinder, the output high pressure air.Left and right air cylinder 1,9, oil hydraulic cylinder 17 usefulness screws 21 are anchored on the left and right support plate 8,16, thereby are supported on the gas receiver 40, and motor 32, oil pump 28, hydraulic pressure changement 29 are supported on the support 33 on left and right support plate 8,16 tops.The various valves here are existing procucts, choose from market, and secondary compression High-pressure air valve 7,15 wherein is identical with structure of relief valve and working principle.Because oil pump output hydraulic fluid pressure is directly proportional with output gas pressure, during for 2-8 atmospheric gas of output, oil pump 28 is selected CB-B type gear oil pump for use, and when needing the gas more than 8 barometric pressure of output, oil pump 28 can be selected CB-C type or C-FL type high pressure oil pump for use.When 2-8 barometric pressure of output, selector valve 29a selects DTY-L type selector valve for use, relief valve is selected the YF type for use, and when 8 high pressure air more than the barometric pressure of output, the also available 24DO-L type of hydraulic pressure changement 29 solenoid directional control valve substitutes, during concrete the installation, can the contact signal device be set in the air cylinder inner termination, when arriving terminal point with piston motion, the collision contact signal makes the solenoid valve commutation, make the hydraulic oil commutation, driven plunger to-and-fro motion (not describing among the figure).Piston rod 24 should be selected the high-quality high-strength steel for use, and left and right cylinder head 3,11 is loaded on left and right air cylinder 1,9 terminations by the screw sealing, should be the sealing assembling between left and right displacer 2,10, hydraulic piston 18 and casing wall separately, with anti-gas-leak and leakage of oil.

Claims

1, a kind of air compressor, include gas receiver (40), be the device of calming the anger that gas is communicated with gas receiver (40), be equiped with barometer (35), safety valve (36), pressurized gas delivery valve (34) and road wheel (37) on gas receiver (40), it is characterized in that: the device of calming the anger is the hydraulic type gas compressing apparatus.

2, air compressor according to claim 1, it is characterized in that: the hydraulic type gas compressing apparatus is by a left side, right air cylinder (1), (9), be loaded on oil hydraulic cylinder (17) therebetween, be loaded on the left side on its termination, right cylinder head (3), (11), be loaded on the left side in it respectively, right displacer (2), (10), be loaded on the hydraulic piston (18) in the oil hydraulic cylinder (17), a dress connection left side, right displacer (2), (10) and the piston rod (24) of hydraulic piston (18), be installed in the peripheral fuel tank (25) of oil hydraulic cylinder (17), adorn the oil pump (28) that joins mutually with motor (32), hydraulic pressure changement (29) that is communicated with oil pump (28) and connection oil pump (28), fuel tank (25), the oil pipe (19) of hydraulic pressure changement (29) and oil hydraulic cylinder (17), (20), (26), (27), (30) form.

3, air compressor according to claim 2 is characterized in that: be equiped with Sealing (22), (22a), (23), (23a) between piston rod (24) and left and right air cylinder (1), (9), the oil hydraulic cylinder (17).

4, air compressor according to claim 2 is characterized in that: hydraulic pressure changement (29) is made up of selector valve (29a), bypass relief valve (31a), (31b), is communicated with by oil pipe each other.

5, according to claim 1,2 or 3 described air compressors, it is characterized in that: designing respectively on left and right air cylinder (1), (9) and left and right cylinder head (3), (11) has air suction valve (4), (12), the once compression air valve (5), (6), (13), (14) that are communicated with gas receiver (40), secondary compression High-pressure air valve (7), (15).

6, according to claim 1,2 or 3 described air compressors, it is characterized in that: left and right air cylinder (1), (9), oil hydraulic cylinder (17) by be anchored on left and right support plate (8), (16) are supported on the gas receiver (40), motor (32), oil pump (28), hydraulic pressure changement (29) are supported on the support (33) on left and right support plate (8), (16) top.