Hydraulic drive internal combustion engine cylinder hole machining honing head and hydraulic circuit thereof

Abstract

The invention discloses a hydraulic drive internal combustion engine cylinder hole machining honing head and a hydraulic circuit thereof. The honing head is mainly composed of an input transmission shaft, a double-acting hydraulic cylinder, a single-acting hydraulic cylinder, an oil distribution disc and the like, wherein three rectangular grooves are evenly distributed in the inner surface of a cylinder body of the double-acting hydraulic cylinder in the circumferential direction; three rectangular convex keys are evenly distributed on the outer circle surface of a piston, and therefore the double-acting hydraulic cylinder can achieve axial reciprocating linear motion and can also achieve circumferential rotation motion; the single-acting hydraulic cylinder is composed of a honing body, apush rod, a reset spring, an oilstone base, an expansion and contraction spring and oilstone; the push rod can achieve linear reciprocating motion under the action of hydraulic force and the action of reset spring force; and two conical faces of the outer circle rotation face of the push rod are matched with the inner conical face of the oilstone base, and radial movement of the oilstone is achieved. According to the hydraulic drive internal combustion engine cylinder hole machining honing head and the hydraulic circuit thereof, internal combustion engine cylinder hole honing work is stable,and therefore the high precision level of the cylindricity and straightness of the internal combustion engine cylinder hole machining surface is achieved, and the work efficiency of an internal combustion engine and the cylinder hole surface quality are greatly improved.

Description

technical field [0001] The invention relates to the technical field of internal combustion engine cylinder hole honing processing, in particular to a hydraulically driven internal combustion engine cylinder hole processing honing head and a hydraulic circuit thereof. Background technique [0002] As a power machine with relatively high thermal efficiency, the internal combustion engine is widely used in various fields of national economy and people's livelihood. In recent decades, with the increasingly prominent problems of global non-renewable energy shortage and environmental protection, the requirements for fuel efficiency and environmental protection of internal combustion engines have become higher and higher. The cylinder block is the main part of the internal combustion engine, and its cylinder bore acts as the main place for the combustion of fuel and the reciprocating motion of the piston when the internal combustion engine is working. The machining accuracy and qua...

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Problems solved by technology

[0003] Most of the existing internal-combustion engine cylinder hole honing processing devices are mechanically driven, the structure of the transmission device is complex, and there are many processing procedures, resulting in a large cumulative error and low processing accuracy.

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