Crankshaft-free engine transmission device

Abstract

A crankshaft-free engine transmission device is characterized in that a sector gear 2 on a main shaft 1 in a housing 10 is positioned in a frame which is composed of racks 3 and 4 and rack connecting plates 5 and 6, wherein rotating arms 7 are arranged at two sides of the sector gear 2; circular arc shaped grooves 701 and turning grooves 702 are correspondingly formed in opposite inner side surfaces of the two rotating arms 7; driving pins 8 are arranged on the edges of the two circular arc shaped grooves 701 and the turning grooves 702; driving grooves 501 and 601 and guide grooves 502 and 602 are correspondingly formed in two side surfaces of the rack connecting plates 5 and 6; turning pins 508 and 608 are mounted on the outer edges of the driving grooves 501 and 601; the racks 3 and 4 are correspondingly positioned on guide rails 9 on the sidewalls of the housing 10; the end parts of the racks 3 and 4 are connected to pistons 12 in air cylinders 13 through connecting rods 11 to form a single-cylinder or multi-cylinder engine set. With the adoption of the device, the mechanical conversion efficiency of an engine can be greatly improved, and the lateral frictional force between the pistons and the cylinder walls can be completely removed.

Description

technical field [0001] The invention relates to a mutual conversion mechanism of reciprocating linear motion and circular motion, in particular to an engine transmission device replacing the crankshaft connecting rod mechanism, which improves the mutual conversion efficiency of the engine's reciprocating linear motion and rotary motion. Background technique [0002] In mechanical engineering, such as piston engines, compressors and other machines that need to convert linear reciprocating motion and circular motion, crankshaft (crank) connecting rod conversion mechanism is generally used at present. [0003] The design and manufacture of the traditional crankshaft (handle) linkage mechanism has been very perfect, but there are inherent defects in both theoretical analysis and practical application: [0004] 1. In the crankshaft (handle) connecting rod mechanism, the gas pressure acting on the piston is decomposed into the force along the axis of the connecting rod and the si...

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Problems solved by technology

[0006] 3. In the crankshaft connecting rod mechanism, the unbalanced rotary mass and rotary motion caused by the swing of the connecting rod cause the inertial force, which makes the piston, the cylinder wall and the rotating contact surface produce alternating impact force, which increases the uneven friction and impact between the various components, not only Affect the output power of the engine, and make the engine generate greater vibration and noise

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