MD40-150型多功能开沟机设计（附电子版图纸）.doc

摘要 在现今社会，天然气管道、自来水管道、电线电缆铺设以及暖气管道的铺设都需要先对地面进行开挖，常用的方法都是人工开挖。这样既费时也费力，根据此类工程的需要，市场上出现专门用于开挖沟槽的开沟机机械。 本文中介绍的MD系列多功能开沟机是一款专用工程机械，用于开挖窄深沟槽、铺设电缆、煤气管线、供排水管线、喷管系统等。适用于市政及野外施工工程。该机是根据目前通用的多功能挖掘机和其他专用多功能开沟机的机构设计而成，其最大的特点是一套主机，多个工装。 本次设计主要负责总体设计和底盘系统设计，它的主要内容有： 方案的构思与抉择。对MD开沟机的工作进行分析，提出切实可行的方 案。 整体参数的确定。计算牵引力和牵引功率，确定发动机的功率并选择合 适的发动机。计算履带的打滑及地面附着性能。 履带式底盘的设计。设计驱动轮、支重轮、导向轮、拖链轮、履带张紧装置以及行走机构、履带架、底架等。 对开沟机的整体稳定性进行校核，并给出维护和说明。 MD系列开沟机具有如下特点： 整体布局合理，性能先进，造型美观，新颖实用； 满足野外作业需求； 能在多种作业间方便切换； 操作容易，维护简便。 关键词： 开沟机，底盘，履带 ABSTRACT In today's society, natural gas pipelines, water pipes, wire and cable laying, and laying of heating pipes need to ground excavation, commonly used methods are manual excavation. This time-consuming effort, according to the needs of such projects on the market specifically for trench excavation trenching machine machinery. The series of MD described in this article is multi-function to open the ditch machine is an appropriation engineering machine, Being used for opening to dig the narrow and deep groove, build the electric cable, gas pipe line, provide the drain pipe line and spray to take care of system etc. Be applicable to municipal and open country construction engineering. That machine with the other is multi-function to open the organization design of the ditch machine with the other appropriation according to the current in general use and multi-function excavation machine, but its biggest characteristics is a set of hosts, several works packs. The main contest of the design as follow: a choice of project is putted forward. The work of the ditch machine is analyzed, and a viable project is putted forward . The parameters are ensured. The calculation leads the dint with lead the power, making sure the power that launch the machine . caterpillar chassis is designed. Driving wheel, track roller，guide wheel jockey pulley, tension device and underframe are designed. 4. The stabilization of multi-function ditch machine is checked, maintenance and explaina