Engine balance shaft arrangement method and structure

Abstract

The invention discloses an engine balance shaft arrangement method, belongs to the technical field of diesel engines, and solves the problem that balance shaft configuration cannot be increased for an existing engine without a balance shaft platform. According to the method, a balance shaft system is arranged on the bottom of a cylinder body. The invention further discloses an engine balance shaft arrangement structure which comprises the cylinder body and the balance shaft system, wherein a reinforcing plate is arranged at the bottom of the air cylinder body, a receding groove is formed in the middle of the reinforcing plate, the balance shaft system penetrates through the receding groove to be mounted below the air cylinder body, a balance shaft oil hole is formed in the air cylinder body; and the balance shaft oil hole communicates with a main oil duct of the cylinder body. According to the engine balance shaft arrangement method and structure, the structure that the balance shaft is arranged in the middle of the bottom is adopted, so that the requirements for configuring balance shafts for engines of different models can be met, and the engine balance shaft arrangement method and structure have the beneficial effects of being wide in application range and high in practicability.

Description

Technical field [0001] The present invention relates to the field of diesel engine, and more particularly to an engine balance axis arrangement method and a structure. Background technique [0002] The working principle of the double balance axis is to eliminate or reduce the second-order rents. The balance axis rotation speed is 2 times the crankshaft rotation. The eccentricity of the eccentric shaft in the operation of the equilibrium axis is second-order reciprocating. The inertial force offsets, thereby achieving the damping effect. [0003] The existing balance axis integrated scheme is multi-side form, and the side balance axes often integrate the balance shaft system to the side of the cylinder block to achieve a compact design (such as a German brand 2.0L engine). However, this design needs to plan a balanced axle system arrangement layout in the platform design, and the timing transmission mechanism needs to match large arrangements, so the existing unsettled axis platfo...

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Problems solved by technology

However, this kind of design needs to plan the layout of the balance shaft system at the beginning of the platform design, and the timing transmission mechanism needs to be matched with a large layout. Therefore, the existing engine without a balance shaft platform cannot be equipped with a balance shaft.

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