CN204492896U

CN204492896U - A kind of rotary-piston type air-powered motor

Info

Publication number: CN204492896U
Application number: CN201520160362.7U
Authority: CN
Inventors: 白济萌
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-03-22
Filing date: 2015-03-22
Publication date: 2015-07-22
Anticipated expiration: 2025-03-22

Abstract

The utility model relates to a kind of rotary-piston type air-powered motor, belongs to air-powered motor.The two ends of cylinder block are fixedly connected with end cap one and end cap two respectively, in cylinder block, arrange relief opening, suction port, output shaft and cylinder block concentric, and inner circle and the eccentric cylindrical of bearing one socket-connect, and the cylindrical of bearing and the inner circle of rotary-piston socket-connect; Demarcation strip one end is hingedly bearing in cylinder block, the other end hingedly crouches in rotary-piston groove, rotary valve timing driving sprocket wheel and output shaft spline joint, timing sprocket chain is connected with rotary valve timing driving sprocket wheel and rotary valve timing driven sprocket respectively, and rotary valve timing driven sprocket is fixedly connected with rotary valve.Advantage is novel structure, lightweight, and main parts size is cylindrical, easily processes, and easily realize complete machine seriation, cost is low, has a wide range of applications occasion.

Description

A kind of rotary-piston type air-powered motor

Technical field

The utility model belongs to a kind of air-powered motor, especially a kind of rotary-piston type air-powered motor.

Background technique

Rely on the orthodox car of petroleum products, be faced with oil shortage and exhausted threat.The sharp increase of automobile quantity in city, overhead, city is shrouded a large amount of harmful gas and finely ground particles, grievous injury the health of the mankind.The carbon emission amount of orthodox car is the key factor causing global warming.All the problems referred to above, all force the mankind must go energetically to research and develop new-energy automobile.

In recent years, the research and development of electric vehicle make great progress, but owing to being subject to, cost is high, battery life is short, the impact of automobile insufficient driving range, charging inconvenience etc., not yet extensively comes into the market at present.The upstream production process of electric automobile power battery and the waste after using, bring burden also can to the environmental protection of society, thus increase the fringe cost of society.

While most of auto vendor strives as early as possible electric vehicle being put on market ,people is just being had to be the automobile of power researching and developing energetically with pressurized air in the world.Air car utilizes compressed-air actuated energy to drive automobile running by air-powered motor; Pressurized air is then produced by compressor by the electric energy of electrical network.The upstream production process of air-powered motor and the overall process of use, all more clean than electric vehicle, therefore, air car should be another important branch of new-energy automobile.

MDI company of France interior Gray (Guy Negre) engineer leading under, obtain significant effect at research and development air-powered motor and air car field, existing multiple air car vehicle comes into the market.Have message to report, Tata motor corporation of India have purchased the manufacturing right of MDI company, also manufactures experimently out sample car, and claims in recent years launch products.U.S. ZPM (Zero Pollution Motors) zero-emission vehicle company declares, strives, in 2011, air car is thrown in American market.Switzerland had produced small air power vehicle already in batches.The states such as Britain, Australia, Korea S, Japan are also in the research development phase.

Some institution of higher learning of China and enterprise are also at research and development air car, and its core is air-powered motor (hereinafter referred to as pneumatic motor).

The air car of current countries in the world (comprising China) almost all adopts reciprocating piston type pneumatic motor.The basic structure of reciprocating piston type pneumatic motor is substantially identical with stroke piston combustion engine with working principle.Fig. 1 illustrates an elementary cell of reciprocating piston type pneumatic motor, and it is made up of parts such as gray iron, piston, connecting rod, bent axle, crankcase, camshaft, inlet and outlet valves.

The ideal operation circulation of reciprocating piston type air-powered motor as shown in Figure 2.After IO Intake Valve Opens, pressurized gas enters cylinder immediately, and the residual pressure that the pressure in cylinder circulates by upper rapidly rises to suction pressure (1---2); Be held open the stage at intake valve, carry out equipressure owing to there being supplementing of air cylinder inner high voltage gas and inflate (2---3); When descent of piston is to certain correct position 3, IC Intake Valve Closes, so the pressurized gas in cylinder start to expand (3---4), this inflation process is generally a polytropic process; Afterwards, exhaust valve is opened, and gas in the jar discharge cylinder (4---1), so far complete a work cycle.Reciprocating piston type pneumatic motor is a kind of two-stroke power engine.

The shortcoming of reciprocating piston type pneumatic motor:

The structural feature of reciprocating piston type pneumatic motor and working cycle process determine its shortcoming:

1) in order to ensure the pressurized air supplying enough quality (exponential quantity) to cylinder, IO Intake Valve Opens angle is generally needed to reach the crank angle (see figure 3) of about 70 °.A working stroke of reciprocating piston type pneumatic motor is 180 ° of crank angles, in this case, the inflation process of gas only accounts for 61% of whole working stroke, cause the expansion ratio of pneumatic motor too little, pressurized gas with large energy is discharged, Effective power (area of 1.-2.-3.-4.-1. Curves encirclement in Fig. 6) is reduced greatly, and thus makes the continual mileage of automobile reduce, the increasing of exhaust sound can be caused in addition.In order to address this problem, the external air inlet method (multistage expansion) adopting multi-cylinder series connection, although capacity usage ratio can be made to improve, also cause the raising of complex structure, cost, specific power reduction, this is the essence shortcoming of reciprocating piston type pneumatic motor.

2) the same with stroke piston combustion engine, also there is reciprocating parts in reciprocating piston type pneumatic motor, and to-and-fro motion inertia can cause larger power loss.

3) reciprocating piston type pneumatic motor must arrange inlet and outlet valve, thus increases inlet and outlet loss, and icing phenomenon may occur.

Summary of the invention

The utility model provides a kind of rotary-piston type air-powered motor, large and increase the problem of inlet and outlet loss to overcome complex structure that existing reciprocating piston type pneumatic motor exists, power loss.

The technological scheme that the utility model is taked is: the two ends of cylinder block are fixedly connected with end cap one and end cap two respectively, in cylinder block, arrange relief opening, suction port, output shaft and cylinder block concentric, and be connected with eccentric wheel by flat key, inner circle and the eccentric cylindrical of bearing one socket-connect, and the cylindrical of bearing and the inner circle of rotary-piston socket-connect; Demarcation strip one end is hingedly bearing in cylinder block, the other end hingedly crouches in rotary-piston groove, this demarcation strip is divided into air-inlet cavity and exhaust cavity two-part cylinder, rotary valve timing driving sprocket wheel and output shaft spline joint, timing sprocket chain is connected with rotary valve timing driving sprocket wheel and rotary valve timing driven sprocket respectively, and rotary valve timing driven sprocket is fixedly connected with rotary valve.

Described rotary-piston is built with circumference and end plane sealing strip.

Between output shaft and end cap one, end cap 2 11, one group of bearing two is installed.

Between rotary-piston 2 and end cap one, end cap 2 11, radial seal ring is installed.

The utility model has the advantages that:

(1) as can be seen from Figure 5, the utility model working stroke and exhaust stroke when crankshaft rotating one is enclosed are carried out simultaneously, that is, all do work at 360 ° of crank angle compressed airs, when air inlet angle is 70 °, expansion ratio can reach 5, if suction pressure is 10bar, calculate by polytropic process, exhaust pressure is only 1.3bar, the exhaust pressure of this pressure ratio reciprocating piston type pneumatic motor is much lower, exhaust energy from outlet pipe is caused to reduce, useful energy improves greatly, see the area of 6.-2.-3.-5.-6. Curves encirclement in Fig. 6, the continual mileage of automobile will be increased, and reduce exhaust sound, thus the shortcoming fundamentally avoided at reciprocating piston type pneumatic motor.

(2) because the utility model expands in 360 ° of crank angles, therefore, it is possible to ensure that each cylinder of multi-cylinder engine is all in acting state, this just improves the Power output ability of pneumatic motor greatly, obtains high specific power, Pneumatic automobile can be made to have higher power character.

(3) the utility model structure is simple, and lightweight, main parts size is cylindrical, easily processes, and easily realize complete machine seriation, cost is low.

(4) compared with reciprocating piston type pneumatic motor, the utility model does not have reciprocating part, does not therefore have the power loss that to-and-fro motion inertia causes yet, has high mechanical efficiency.

(5) owing to there is no inlet and outlet valve, so there will not be the phenomenon making outlet valve frosting make exhaust valve closure not tight because delivery temperature is low as reciprocating piston type pneumatic motor.

(6) the utility model has extraordinary " moment of torsion-rotary speed property ", namely has the characteristic of low-speed big.

The utility model is the structural element forming various assembly as elementary cell, utilizes this elementary cell can build multiple practical assembly, can build twin-tub and Multi-cylinder rotation piston type pneumatic by rotary-piston type pneumatic motor elementary cell.

The utility model has a wide range of applications occasion:

The utility model can be applied to all kinds of Pneumatic automobile, as city shuttle car, passenger car, bus, sweeper etc., pneumatic flat plate transport vehicle, replaces storage battery car and tour bus, seawater fishery operation ship, the yacht etc. of inside plants transport;

The utility model is passable withtraditional combustion engine is configured to mixed power system, can reduce the consumption of petroleum products, reduces the discharge amount of harmful gas, and improves the continual mileage of Pneumatic automobile, be specially adapted to city bus.

The utility model can make various pneumatic motor.

The utility model may be used for the starting and stopping mechanism of all kinds of automobile.

Accompanying drawing explanation

Fig. 1 is reciprocating piston type air motor structure and fundamental diagram;

Fig. 2 is the work cycle P-V figure of air motor;

Fig. 3 is the air inlet angle figure of reciprocating air motivation;

Fig. 4 a is structure schematic cross section of the present utility model;

Fig. 4 b is structure longitudinal section of the present utility model schematic diagram;

Fig. 5 is air inlet angle schematic diagram of the present utility model;

Fig. 6 reciprocating air motivation and air inlet of the present utility model, expansion and exhaust process figure.

Embodiment

The two ends of cylinder block 1 are fixedly connected with end cap 1 and end cap 2 11 respectively, in cylinder block, arrange relief opening C, output shaft 7 and cylinder block 1 concentric, and be connected with eccentric wheel 5 by flat key 6, the inner circle of bearing 1 and the cylindrical of eccentric wheel 5 socket-connect, and the cylindrical of bearing 4 and the inner circle of rotary-piston 2 socket-connect; Demarcation strip 8 one end is hingedly bearing in cylinder block 1, the other end hingedly crouches in rotary-piston 2 groove; this demarcation strip 8 is divided into air-inlet cavity A and exhaust cavity B two-part cylinder 1; because air-inlet cavity and exhaust cavity is divided comes; so the machine need not arrange inlet and outlet valve, this is difference important in reciprocating piston type pneumatic motor; Rotary valve timing driving sprocket wheel 15 and output shaft 7 spline joint, timing sprocket chain 14 is connected with rotary valve timing driving sprocket wheel 15 and rotary valve timing driven sprocket 16 respectively, rotary valve timing driven sprocket 16 is fixedly connected with rotary valve 9, realizes the keying phase relationship of rotary valve 9 and rotary-piston 2 according to the velocity ratio determined.

Described rotary-piston 2 is built with circumference and end plane sealing strip 3.

Between output shaft 7 and end cap 1, end cap 2 11, one group of bearing 2 12 is installed.

Between rotary-piston 2 and end cap 1, end cap 2 11, radial seal ring 13 is installed.

Working procedure is:

Pressurized air in air cylinder enters air-inlet cavity A through reduction valve, heat exchanger, flow control valve, suction port D and rotary valve 9, see Fig. 5 a, promote rotary-piston 2 to rotate around the center line of cylinder 1, after rotary valve 9 cuts out, pressurized air expands, and then promotion rotary-piston 2 rotates further, through bearing 1 and eccentric wheel 5, moment is delivered to output shaft 7, thus realizes power stage; Pressurized air after expansion is discharged from relief opening C.Rotary valve 9 is taken turns 16 and timing gear chain-driving by rotary valve timing actuation gear 15, rotary valve timing driven gear, and is rotated with identical angular velocity with output shaft 7.

Claims

1. a rotary-piston type air-powered motor, it is characterized in that: the two ends of cylinder block are fixedly connected with end cap one and end cap two respectively, in cylinder block, arrange relief opening, suction port, output shaft and cylinder block concentric, and be connected with eccentric wheel by flat key, inner circle and the eccentric cylindrical of bearing one socket-connect, and the cylindrical of bearing and the inner circle of rotary-piston socket-connect; Demarcation strip one end is hingedly bearing in cylinder block, the other end hingedly crouches in rotary-piston groove, this demarcation strip is divided into air-inlet cavity and exhaust cavity two-part cylinder, rotary valve timing driving sprocket wheel and output shaft spline joint, timing sprocket chain is connected with rotary valve timing driving sprocket wheel and rotary valve timing driven sprocket respectively, and rotary valve timing driven sprocket is fixedly connected with rotary valve.

2. a kind of rotary-piston type air-powered motor according to claim 1, is characterized in that: described rotary-piston is built with circumference and end plane sealing strip.

3. a kind of rotary-piston type air-powered motor according to claim 1, is characterized in that: between output shaft and end cap one, end cap two, be provided with one group of bearing two.

4. a kind of rotary-piston type air-powered motor according to claim 1, is characterized in that: between rotary-piston and end cap one, end cap two, be provided with radial seal ring.