Five-cylinder diesel engine crankshaft balance system

Abstract

The invention relates to a five-cylinder diesel engine crankshaft balance system which comprises a crankshaft, balance weights and balance mechanisms, wherein the crankshaft comprises a free end, a power output end and bell cranks, which are sequentially a first bell crank, a second bell crank, a third bell crank, a fourth bell crank and a fifth bell crank along the free end towards the power output end. The five-cylinder diesel engine crankshaft balance system is characterized in that a crank of the first bell crank is provided with the balance weight I; a crank of the fifth bell crank is provided with the balance weight II; a crank in the bell crank adjacent to the power output end is provided with the balance weight III; a crank in the fourth bell crank adjacent to the free end is provided with the balance weight IV; the second bell crank is provided with a first drive tooth ring for driving the first balance mechanism; and the fourth bell crank is provided with a second drive tooth ring for driving the second balance mechanism. The five-cylinder diesel engine crankshaft balance system effectively solves the problem of imbalance among the rotary inertia torque, first-order reciprocating inertia couple and second-order reciprocating inertia couple in the five-cylinder diesel engine, so that the engine can satisfy the vibration requirements, thereby promoting the application and development of the five-cylinder diesel engine.

Description

technical field [0001] The invention relates to a crankshaft balance system of a five-cylinder diesel engine, which belongs to the technical field of diesel engine balance. Background technique [0002] In the field of engines, six-cylinder diesel engines occupy most of the current diesel engine market due to their good balance and stability. However, when the power required by the user is small, some power will overflow when the six-cylinder diesel engine is installed, and because the engine is too heavy, the user's fuel consumption will also increase accordingly, which will increase the cost of the car while also increasing the use. Cost, thereby reducing the competitiveness of the product in the market, so the application of five-cylinder diesel engine has its necessity. However, the crank mechanism in the engine will produce a reciprocating inertial force and a rotating inertial force when it is working, and will also produce a corresponding reciprocating inertial momen...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems existing in the prior art, and designed a crankshaft balance system of a five-cylinder diesel engine, by arranging balance weights and balance mechanisms on the crankshaft, the engine rotational inertia moment, first-order reciprocating inertia moment And the unbalanced second-order reciprocating moment of inertia, so that the five-cylinder diesel engine can meet the vibration requirements, and further promote the application and development of five-cylinder diesel engines

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