Full-equilibrium single cylinder diesel

Abstract

The invention relates to a full-equilibrium single-cylinder diesel engine comprising an engine body and a crank link mechanism. A crankshaft is provided with a front eccentric journal and a rear eccentric journal; a front annular connecting rod and a rear annular connecting rod are mounted at the positions of the front eccentric journal and the rear eccentric journal through a front bearing and a rear bearing, and arranged respectively in a left guiding camber surface and a right guiding camber surface of a front slide block and a rear slide block. The ratio of the eccentric distance e of the front eccentric journal and the rear eccentric journal to the working distance I of the front annular connecting rod and the rear annular connecting rod is equal to the ratio of the radius R of a crank of the crankshaft to the working distance L of the connecting rods; a front guiding pin and a rear guiding pin, which are arranged on the top of the engine body, are respectively arranged in guiding grooves of the front slide block and the rear slide block; a front guiding rod and a rear guiding rod, which are arranged at the lower part of the engine body, respectively pass through guiding holes arranged at the lower part of the front slide block and the rear slide block to connect with a supporting shaft; a sidewall of the engine body is provided with a gear chamber cover; and the lower part of the gear chamber cover is provided with an oil pump. The full-equilibrium single-cylinder diesel engine is characterized by reasonable compact structure, being capable of simplifying the structure and operation of the engine body of the diesel engine, and decreasing the vibration and noise of the diesel engine.

Description

technical field [0001] The invention relates to a fully balanced single-cylinder diesel engine, which belongs to the technical field of single-cylinder diesel engines. Background technique [0002] Large, medium and small single-cylinder diesel engines are mainly composed of body parts, crankshaft and connecting rod mechanism, ventilation system, fuel supply system, etc. The reciprocating motion of the piston in the cylinder is transformed into the rotational motion of the crankshaft, and the rotational motion of the crankshaft is transformed into It is the reciprocating motion of the piston to realize the working cycle and output power to the outside and the auxiliary systems used to drive the engine. Because the connecting rod mechanism corresponding to the cylinder will generate a reciprocating inertial force and a rotating inertial force, and these two inertial forces also form two alternating moments of inertia to act on the main bearing. These inertial forces and momen...

AI Technical Summary

Problems solved by technology

[0005] The dual-axis balance mechanism uses two balance shafts with opposite rotation directions and the same size. The component force of the centrifugal force of the two balance shafts along the direction of the centerline of the cylinder is balanced with the first-order reciprocating inertial force of the piston group, but the number of parts of the mechanism Many, large volume and weight, high cost

[0006] Although the above-mentioned balance mechanism can basically solve the balance of the rotational inertial force of the crank-link mechanism, it can only partially or completely balance the first-order reciprocating inertial force, and cannot solve the balance problem of the second-order reciprocating inertial force, and the second-order reciprocating inertial force The force is about 1 / 3 to 1 / 4 of the first-order reciprocating inertial force, so the balance mechanism of the current single-cylinder diesel engine cannot completely balance the reciprocating inertial force, which is the main reason for the widespread vibration and noise of the single-cylinder diesel engine. Noise environmental pollution seriously affects the comfort of users

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