机械 毕业设计 论文 课程设计

摘 要
砂光机是利用磨具对各种板类，木制品构件进行砂削加工的设备。砂光机在人造
板和家具行业中使用面广，需要量大，品种较多，近年来发展速度较快。砂光机的特
点是适应性强，能提高工作的尺寸精度，也能降低工件的表面粗糙度，是木材加工的
重要机床之一。
BSG2213 型单面双砂架为上砂式宽带砂光机，通过电机驱动履带送料，板材先通
过辊式砂架进行线性切割定厚，再通过压磨式砂架进行面切割精磨，最终完成各种板
材的精度抛光。压磨式砂架由接触辊，压磨器，导向辊和张紧辊组成。张紧辊由气缸
支撑有效防止了砂带的松弛和跑偏。
为了防止重心过高引起整机振动，设计中将主电机置于下方，并通过皮带传动带
动驱动辊旋转，使整机重心下降，有效增强了整机的稳定性。
关键词：宽带；砂光机；压磨式砂架；压磨器；辊式砂架

ABSTRACT
Belt sander is the equipment utilizing attrition tool to manufacture various of board and
woodwork component. The belt sander is widely employed in the wood-based board and
furniture trade. The requirement is very large and the variety is more, and the belt sander
develop fast in recent years. The sander have the characteristic of good adaptability, so it
can improve the size precision of the work, take from the surface roughness of the work
piece, and become one of the important lathes of wood working.
BSG2213 wide belt sander is the machine which has two sand belt shelves locate on
the up part of the sander, feed with track that drived by A.C commutator motor. The board
first through rolling grinding shelf cuts thickset, then through the abrading grinding shelf for
cutting assemble, finally completes the polishing precisely of many various of board. The
abrading grinding shelf is buildup with a contact roller, pressing block, oriented roller and
tension roller. The tension roller which support with the cylinder prevent the belt of
relaxation and yaw effectively.
To avoid too big vibrating from the gravity if it is located high, and the electrical
engineer drives the roller with leather belt. This design attaches a good stability.
Key words: Wide Belt; Sander; Press Abrading Grinding Shelf; Pressing Block;
Rolling Grinding shelf

目 录
摘要····································································································································· I
Abstract ······························································································································ II
第1 章 绪论·····················································································································1
1.1 课题背景和研究意义······························································································1
1.2 砂光机的发展趋势·································································································2
1.3 国内外宽带砂光机的发展动态··············································································3
1.4 本课题的立题依据·································································································4
1.5 本课题研究的内容·································································································5
第2 章 总体方案拟定···································································································6
2.1 主要技术参数·········································································································6
2.2 设计的总体原则·····································································································6
2.3 砂架的型式·············································································································6
2.4 机架的设计·············································································································8
2.5 升降系统·················································································································8
2.6 吸尘系统·················································································································9
2.7 清洁系统·················································································································9
2.8 驱动系统·················································································································9
2.9 接触辊、张紧辊的具体设计················································································10
2.10 工作原理··············································································································11
2.11 本章小结··············································································································11
第3 章 机床的结构及技术特点···············································································12
3.1 机床的总体结构····································································································12
3.1.1 机床的布局··································································································12
3.1.2 机床的总体结构···························································································12
3.2 机床的技术特点···································································································13
3.3 设计计算···············································································································15
3.3.1 电机的选择··································································································15
3.3.2 带轮的选择·································································································15
3.3.3 轴承的选择·································································································17
3.3.4 气缸选择·····································································································17
3.4 砂光机的安全防护和润滑····················································································18
3.5 本章小结···············································································································19
第4 章 主要的设计计算·····························································································20
4.1 概述·······················································································································20
4.2 切削速度及接触辊直径的确定············································································20
4.3 电机功率的确定···································································································21
4.4 轴强度校核···········································································································22
4.5 轴承的校核与计算·······························································································27
4.6 电动机的校核计算·······························································································28
4.7 本章小结···············································································································29
第5 章 本机的机构特点和技术经济指标·····························································30
5.1 本机的结构特点····································································································30
5.2 本机的技术经济指标·····························································································30
5.3 本章小结················································································································31
结论···································································································································32
参考文献··························································································································33
致谢···································································································································34

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