木材圆盘切割锯设计

木材圆盘切割锯设计

作 者 姓 名 专 业指导教师姓名专业技术职务

机械设计制造及其自动化

目 录

摘 要................................................................................................ 1 ABSTRACT ........................................................................................... 2

第一章 绪论 ............................................................................. 3

1.1产品分析及国内外发展现状 ......................................................... 3 1.2课题分析 ....................................................................................... 5 1.2.1设计内容及要求 ......................................................................... 5 1.2.2设计方法及技术路线 ................................................................. 6

第二章 方案拟定 ..................................................................... 7

2.1拟定整体方案................................................................................ 7 2.2机械部件方案拟定 ...................................................................... 10 2.3控制系统方案拟定 ...................................................................... 14

第三章 机械部件设计计算 ................................................... 15

3.1电动机 ......................................................................................... 15

3.1.1电机的选择和计算....................................................... 15

3.2 V型带.......................................................................................... 18

3.2.1 V型带的计算............................................................... 18 3.2.2选取带型....................................................................... 18 3.2.3确定带轮的基准直径................................................... 18 3.2.4验算带的速度............................................................... 19 3.2.5确定V带长度和中心距............................................... 19

I

3.2.6计算小轮包角............................................................... 20 3.2.7确定V带根数............................................................... 20 3.2.8计算作用在轴上的压力............................................... 21 3.2.9带轮结构设计............................................................... 21

3.3 圆锯机主轴 ................................................................................ 22

3.3.1材料选择....................................................................... 22 3.3.2轴的结构设计............................................................... 22 3.3.3轴的强度校核............................................................... 22 3.3.4轴的刚度校核............................................................... 25

3.4 轴承.......................................................................................... 26

3.4.1轴承的选择................................................................... 26 3.4.2轴承的校核................................................................... 26

3.5 键的选择 .................................................................................. 26 3.6 润滑与密封 ...............................................................................27

3.6.1 轴承的润滑................................................................ 27 3.6.2 轴承密封的选择........................................................ 27 第四章 CAD图纸 .................................................................. 28

4.1整体装配图 ................................................................................. 28 4.2主轴装配图 ................................................................................. 28

第五章 设计小结.................................................................... 30 致谢 ......................................................................................... 31 参考文献.................................................................................. 32

II

本科生毕业设计（论文）

摘 要

木工机械是家具、建材及装修等行业的基础。而木材圆盘切割锯更是木材加工生产过程中必不可少的机械设备，在各种木材加工厂随处可见。

圆盘锯又叫圆锯机，是应用很广泛的木工机械，他是由床身、工作台和锯轴组成。大型圆锯机座必须安装在结实可靠的基础上，小型的可以直接安放在地面上，工作台的高度约900mm。锯轴安装在机座的轴承内，锯轴的转动一般用皮带传动，但新式的机床都用电动机直接带动。有些圆锯机的工作台能够倾斜45°角，比较新式的圆锯机的工作台，始终保持水平，但是锯片能够自动倾斜，这不仅对工作带来了很大的方便，而且也比较安全。

本课题就是设计一台木材圆盘切割锯，用来进行木材的粗加工过程中的切割。该圆盘锯机主要由机架、工作台、锯轴、切削刀片、导尺、传动机构和安全装置等结构组成。本文通过比较，确定了最终设计方案，针对木材圆盘切割锯的结构及其特点要求进行了设计与说明，确定单侧皮带轮传动的运动方式。然后圆盘锯主轴的截面特性，并对主轴和支架的强度、刚度进行了校核验算。以保证所设计的木材圆盘切割锯满足使用要求。

关键词：木材圆盘锯切割锯 锯片 皮带轮传动 主轴 机架 电机

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本科生毕业设计（论文）

ABSTRACT

Woodworking machinery furniture, building materials and decoration, etc. basis. The wood cutting circular saw is essential for the production process of wood processing machinery and equipment, wood processing plants in a variety of everywhere.

Also known as circular saw circular saw, is the application of a wide range of woodworking machinery, he is by the bed, table and saw shaft components. Large circular saw base must be installed on solid and reliable basis, small can be directly placed on the ground, table height of about 900mm. Saw shaft bearings mounted within the base, saw the general use of the rotational axis of the belt drive, but the new machine is directly driven by electric motors. Some saw machine table can be tilted 45 ° angle, more modern machine table saw, always maintain the level, but can automatically tilt the saw blade, which not only brought about a great convenience, but also safer .

The project is to design a circular cutting saw wood, wood used for rough cutting process. The circular saw mainly from the rack, table, saw shaft, cutting blade, guide foot, transmission and safety devices, etc. structures. By comparison, to determine the final design for wood cutting circular saws and characteristics of the structural requirements for the design and description of the drive pulley to determine the movements of one side. Circular saw and then the section properties of the spindle, and spindle and support the strength, stiffness was checked checked. Designed to ensure that the timber meet the requirements of circular cutting saws.

Keywords: Wood Cutting Saw Circular Saw Saw Pulley drive Spindle rack Motor

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