道路绿化树木养护多功能机设计及主体结构仿真研究

发布时间：2018-05-18 16:00

本文选题：道路绿化树木 + 养护多功能机　；参考：《东北林业大学》2015年硕士论文

【摘要】：随着城镇道路建设面积不断增加,道路绿化树木成为城镇道路绿化建设重要组成部分和城市文明的重要标志,它能够改善城镇气候、组织城镇交通、改善环境卫生、保护生态环境、丰富城镇艺术形象。但是树木生长繁茂,容易受到病虫害的影响,所以需要定期进行修剪、浇水、病虫害防治和剩余物处理等养护。道路绿化树木养护是一项系统工作,以往依靠手工完成,工作困难、劳动强度大、安全性低、机械化程度低。本文针对传统道路绿化树木养护困难、修剪剩余物不能及时有效回收利用造成资源浪费等问题,设计一种集修剪、削片、喷雾等多功能为一体的道路绿化树木养护多功能机,主要由汽车底盘、修剪系统、喷雾系统、削片系统等组成。通过对现有机型、设备及各工作装置工作原理的研究,对六自由度修剪系统结构、喷雾装置结构和液压系统进行设计,对削片机进行选型,采用汽车底盘发动机作为动力源,合理分配动力传动,完成修剪、削片、喷雾、行走等工作。运用SolidWorks软件对整机进行建模和干涉检查；对修剪系统进行运动学、动力学分析,对整机进行侧翻稳定性分析；运用ADAMS软件对主体结构修剪系统进行ADAMS仿真分析,模拟修剪系统运动情况,得到各个关节的角度、角速度、角加速度、力和力矩的变化曲线、以及修剪刀具位置关系,结果分析表明设计达到要求,为结构设计改进提供指导；运用ANSYS软件对修剪系统和车架进行静力学与模态分析,得到应力、应变及模态振型云图,比较分析数据,修剪系统和车架的强度和刚度符合设计要求,且工作过程中不会发生共振现象。同时,道路绿化树木养护多功能机功能齐全,机械化程度高,具有很高的实际利用意义和经济效益。
[Abstract]:With the increasing area of urban road construction, road greening trees become an important part of urban road greening construction and an important symbol of urban civilization. It can improve urban climate, organize urban traffic, improve environmental hygiene. To protect the ecological environment and enrich the artistic image of towns. But trees grow luxuriantly and are susceptible to pests and diseases, so they need regular pruning, watering, pest control and residue treatment. The maintenance of road greening trees is a systematic work. In the past, it was done by hand, so it was difficult to work, the intensity of labor was high, the security was low, and the degree of mechanization was low. Aiming at the problems of difficult maintenance of traditional road greening trees and the waste of resources caused by the timely and effective recovery and utilization of pruning residues, a multifunctional maintenance machine for road greening trees is designed, which integrates pruning, slicing, spraying and so on. Mainly consists of automobile chassis, pruning system, spray system, cutting system and so on. Based on the study of the working principle of the existing models, equipments and working devices, the structure of the six-degree-of-freedom pruning system, the structure of the spray device and the hydraulic system are designed. The chippers are selected and the automobile chassis engine is used as the power source. Reasonable distribution of power transmission, complete pruning, cutting, spray, walking and so on. SolidWorks software is used to model the whole machine and interference check, kinematics and dynamics analysis to the pruning system, and roll stability analysis to the whole machine. ADAMS simulation analysis of the main structure pruning system is carried out by using ADAMS software. The angle, angular velocity, angular acceleration, force and torque of each joint are obtained by simulating the motion of the pruning system. The results show that the design meets the requirements and provides guidance for the improvement of the structure design. The static and modal analysis of the pruning system and frame is carried out by using ANSYS software, and the stress, strain and modal vibration pattern are obtained. The comparative analysis data show that the strength and stiffness of the pruning system and frame meet the design requirements. And the resonance will not occur in the working process. At the same time, the multifunctional maintenance machine for road greening trees has complete functions and high degree of mechanization, which has high practical significance and economic benefit.
【学位授予单位】：东北林业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U418.3

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