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Crankshaft structure of V-shaped eight-cylinder engine

A technology for engines and crankshafts, applied in the direction of engine components, crankshafts, shafts, etc., can solve problems such as poor strength performance and large torsional vibration amplitude, and achieve the effects of improving strength, reducing torsional vibration amplitude, and reducing internal torque

Inactive Publication Date: 2016-12-21
GUANGXI YUCHAI MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a crankshaft structure of a V-type 8-cylinder engine, thereby overcoming the shortcomings of the existing crankshaft with large torsional vibration amplitude and poor strength performance

Method used

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  • Crankshaft structure of V-shaped eight-cylinder engine
  • Crankshaft structure of V-shaped eight-cylinder engine
  • Crankshaft structure of V-shaped eight-cylinder engine

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Embodiment Construction

[0024] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0025] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0026] Such as figure 1 As shown, the crankshaft structure of the V-type 8-cylinder engine according to the specific embodiment of the present invention includes a crankshaft 1 and 6 counterweights.

[0027] Such as figure 1 As shown, the two ends of the crankshaft 1 are respectively the free end 105 and the power output end 106, projected along the direction from the free end 105 to the power output end 106, along the cl...

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Abstract

The invention discloses a crankshaft structure of V-shaped eight-cylinder engine. Two ends of a crankshaft are a free end and a power output end respectively, a first crank, a second crank, a third crank and a fourth crank are sequentially arranged from the free end to the power output end, every crank arm of the crankshaft is symmetric to a plane formed by the center axis of a corresponding rod journal and the center axis of the crankshaft, the lower end of each of the crank arms of the crank and the fourth crank is provided with an arc-shaped first balancing weight , and an included angle between the center axis of the balancing weight and the center axis of the corresponding crank arm is 0-45 DEG. The design of the crank arms and the balancing weights is in favor of realizing light weight the crankshaft, reducing the internal moment of the crankshaft and improving the dynamic balancing rate of the crankshaft.

Description

technical field [0001] The invention relates to the field of engines, in particular to a crankshaft structure of a V-type 8-cylinder engine. Background technique [0002] The torsional vibration amplitude of the crankshaft of the existing V-type 8-cylinder engine is large, and the strength performance of the crankshaft is poor, and the oil supply capacity of the eight-cylinder crankshaft is poor, and the oil passage is not easy to arrange and process. [0003] The information disclosed in this Background section is only for enhancing the understanding of the general background of the present invention and should not be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art. Contents of the invention [0004] The object of the present invention is to provide a crankshaft structure of a V-shaped 8-cylinder engine, so as to overcome the existing shortcomings of the crankshaft with l...

Claims

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Application Information

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IPC IPC(8): F16C3/10F16C3/14F16C3/20
CPCF16C3/10F16C3/14F16C3/20F16C2360/22
Inventor 黄第云沈捷蔚兴建
Owner GUANGXI YUCHAI MASCH CO LTD
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