-植树挖坑机之挖掘机构的设计说明书

摘要

现代新型挖坑机的研发主要向系列化、多功能和高性能方向发展。本植树挖坑机采用悬挂式与拖拉机三点悬挂式联接，即钻头在悬挂支臂的一端，支臂的另一端置于拖拉机悬挂支点上。

本挖坑机主要是对传统的悬挂式植树挖坑机的传动部分和挖掘部分的改进。在主轴箱设计方面，合理的设计锥齿轮的传动比以及强度计算等。在总体设计方面，尽量简化挖坑机的结构，减少其零件数目，以降低成本。对于双螺旋叶片设计，其直径由下往上逐渐减小，其螺旋夹角也由下往上逐渐减小，以避免钻头工作时与塘壁发生碰撞和摩擦等情况，提高了工作稳定性。

关键词：挖坑机；悬挂；双螺旋叶片

Abstract

Modern research and development of new major development digging machine to the series, versatile and high-performance orientation. The tree planting digging machine adopts hanging type connection with a tractor three-point suspension that drill at one end of the suspension arm, the other end of the arm is placed on the tractor fulcrum.

The main part of the digging machine to improve the traditional hanging tree planting and digging digging machine transmission parts. In headstock design, as well as the strength of the transmission ratio rational design bevel gear calculation. In terms of overall design, try to simplify the structure of digging machines, reducing its number of parts to reduce costs. For the double helix blade design, its diameter decreases gradually upward from the lower its upward spiral angle also decreased from the next, in order to avoid the pond wall collision occurred when the drill work and friction, etc., to improve the working stability.

Key words: Digging machine; Suspension; Double helix leaves

目录

摘要....................................................................................................................................... I ABSTRACT ....................................................................................................................... II 前言.. (3)

第一章引言 (4)

1.1本课题的设计意义 (4)

1.2我国园林机械的介绍 (4)

1.3国内外发展概况及现状 (5)

1.3.1 国内研究现状 (5)

1.3.2 国外研究现状 (7)

1.4课题由来及设计条件 (11)

1.5课题设计思路 (11)

第二章总体方案设计 (12)

2.1挖坑机的设计要求 (12)

2.2作业原理 ................................................................................ 错误!未定义书签。

2.3挖穴机与拖拉机的联接 ........................................................ 错误!未定义书签。

2.4挖穴机的动力部分 ................................................................ 错误!未定义书签。

2.5挖坑机主要技术规格和基本技术参数 ................................ 错误!未定义书签。第三章部件设计................................................................................. 错误!未定义书签。

3.1钻头的设计 ............................................................................. 错误!未定义书签。

3.2双螺旋叶片的设计 ................................................................ 错误!未定义书签。

3.3螺旋轴的设计 ......................................................................... 错误!未定义书签。

3.4减速器的设计 ......................................................................... 错误!未定义书签。

3.4.1计算传动装置的运动和动力参数 .................................. 错误!未定义书签。

3.4.2传动零件的设计计算 ...................................................... 错误!未定义书签。第四章设计计算................................................................................. 错误!未定义书签。

4.1动力分配计算 ......................................................................... 错误!未定义书签。

4.2万向联轴器的选用计算 ........................................................ 错误!未定义书签。

4.3提升机构设计 ........................................................................ 错误!未定义书签。