CN1024031C

CN1024031C - Mechanism for piston running at every other stroke

Info

Publication number: CN1024031C
Application number: CN 91102879
Authority: CN
Inventors: 邱垂西
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-04-29
Filing date: 1991-04-29
Publication date: 1994-03-16
Anticipated expiration: 2006-04-29
Also published as: CN1066320A

Abstract

The present invention relates to structure that once a cylinder piston upward and downwards moves for one time, the cylinder piston can pause for one time. The present invention comprises a small gear (1), a big gear (2), a connecting rod (3), a main crank shaft (4), auxiliary crank shaft (5), a guide plate (6) of a dovetail slot, and a piston group (7), wherein the diameter of the big gear is twice as large as that of the small gear. The auxiliary crank shaft and the main crank shaft are driven by utilizing the different gear ratio of the big gear to the small gear so that the small gear raises, the piston group linked by the auxiliary crank shaft driven by the big gear falls to counteract the movement by one-time upward move and one-time downward move, and thus, pistons stay in the original position so as to improve the volume efficiency of the cylinder. The mechanism is suitable for punching machines discontinuously doing work and mechanism equipment doing work by vibration.

Description

Mechanism for piston running at every other stroke

The present invention is a kind of structure of cylinder piston, refers to a kind of mechanical realization that improves cylinder volume efficient and utilize the interruption acting especially.

The volumetric efficiency of at present relevant cylinder can't improve, and its main cause is the deficiency of air inflow, though there is the people to make up to open late pass the morning of porthole or to add pressurized machine.But arrived the fast more air inlet time of velocity of piston more in short-term, its function still can be limited, and then makes cylinder can't reach higher intake efficiency.

The objective of the invention is to design a kind of mechanism of cylinder piston, thereby make cylinder obtain the highest intake efficiency, so that overcome the shortcoming of prior art.

The present invention is made of gearwheel (2), connecting rod (3), main crankshaft (4), secondary crankshaft (5), dovetail groove guide plate (6), piston set elements such as (7) that small gear (1) and diameter double small gear (1).Small gear (1) is to be fixed in respectively on main crankshaft (4) and the secondary crankshaft (5) with gearwheel (2), and utilizes the fixed distance of connecting rod (3) with big small gear (2), (1), and big small gear (2), (1) can be meshing with each other when rotating.The upper and lower end of connecting rod (3) is socketed on respectively on secondary crankshaft (5) and the main crankshaft (4).Main crankshaft (4) is a driving shaft.Secondary crankshaft (5) is driven and is rotated by gearwheel (2), its two ends become dovetail shaped, and in dovetail groove guide plate (6), do and slide up and down, dovetail groove guide plate (6) is to adjust piece (62) by pedestal (61) and to be constituted, adjust piece (62) and be provided with ellipse screw (621) and utilize screw (622) to adjust the spacing of piece (62) and pedestal (61) institute formation dovetail groove, piston set (7) is then driven by secondary crankshaft (5).

Below in conjunction with accompanying drawing embodiment is described in more detail.

Fig. 1 is an embodiment of the invention structural representation;

Fig. 2 is a dovetail groove guide plate sectional drawing;

Fig. 3 is for adjusting the structural representation of ellipse screw in the piece;

Fig. 4 is a present embodiment action schematic representation, is large and small gear (2), (1) and piston set (7) and goes up the push pull maneuver schematic representation.

Fig. 5 applies to the example structure schematic representation of air compression for the present invention.

When piston set (7) during at peak, the mechanical angle of small gear (1) rotation is made as that zero degree begins (as 4.1 among Fig. 4) because the diameter ratio of big small gear (2), (1) is 2: 1, when small gear (1) is the axle center with the P point, when rotating to 180 degree mechanical angles to the right, small gear (1) descends 1 inch, gearwheel (2) then rotates to 90 degree left, about 1 inch (as 4.2 in the pattern 4) also descends, piston set (7) then adds up to about 2 inches of decline, drives the point to A by the E point at this moment and with piston rod (71).When small gear (1) is that the axle center rotates to 360 to the right when spending with the P point again, can rise 1 inch, gearwheel (2) then rotates to the piston set (7) that 180 degree drive secondary crankshaft (5) institute interlock left, descend about 1 inch, because of cancelling each other one on the other, and make piston rod (71) do moving up and down by the A point by a small margin to the B point, to making piston set (7) do moving up and down and rest on original position (as 4.3 among Fig. 4) by a small margin.Rotate to 540 to the right when spending when small gear (1) again, descend 1 inch again, gearwheel (2) then then rises 1 inch to the piston set (7) of anticlockwise 270 degree drive secondary crankshaft (5) institute interlocks, because of cancelling each other one on the other, and make piston rod (71) from the B point do by a small margin move up and down to C point to making piston set (7) also only continue to rest on original position (as 4.4 Fig. 4) after work the moving up and down by a small margin, again when small gear (1) rotates to 0 degree that is original position to the right (as 4.1 among Fig. 4 '), rise 1 inch again, gearwheel (2) then rotates to 360 degree and also rises 1 inch, and piston rod (71) upwards is pushed into the D point by the C point, also piston is raised 2 inches simultaneously and arrive peak.So just having formed piston whenever goes up the continuous motion that next time stops again once.

When after piston set (7) goes up initial point pressurized air certainly, returning back to down initial point among this embodiment, piston set (7) can rest on original position work two strokes that move up and down by a small margin, this moment, cylinder can be done sufficient air inlet and cooling, like this when piston set (7) moves up and down in cylinder fast, also sufficient air inlet and cool time can be arranged, and then improve the volumetric efficiency of cylinder.Again when piston set (7) walks to the stroke that stops, non-loaded rotatablely moving all also done in large and small gear (2), (1), and make piston set (7) can reach the effect of energy storage, when making progress pressurized air again, piston set (7) can have compressed-air actuated ability of moment.

In sum, advantage of the present invention is to improve the volumetric efficiency of cylinder, it is used in the operating range that can improve compression on the air compression, and the present invention structure can make piston suspension and bent axle can also turn round continuously, and this is to utilizing the punch press that is interrupted work done and can producing bigger benefit with the machinery of vibration work done.

Claims

1, a kind of mechanism of cylinder piston includes small gear (1), gearwheel (2), connecting rod (3), main crankshaft (4), secondary crankshaft (5), dovetail groove guide plate (6), piston set (7); Small gear (1) is fixed in respectively on main crankshaft (4) and the secondary crankshaft (5) with gearwheel (2), and is meshing with each other; The two ends of connecting rod are socketed on respectively on main crankshaft and the secondary crankshaft; The two ends of secondary crankshaft are dovetail shaped, and do in the dovetail groove guide plate and slide up and down; The dovetail groove guide plate then is by pedestal (61) and adjusts piece (62) formation, adjusts piece and utilize screw (622) to adjust the spacing of dovetail groove; This mechanism is characterised in that the gearwheel and the diameter ratio of small gear are 2: 1.