设计简介
摘要
本设计介绍了机械压力机的历史及我国冲压机械的发展现状，对机械压力机的设计方法进行一定的介绍。本设计主要对JE25-110开式双点曲柄压力机的传动部分进行设计。
开式曲柄压力机主要包括主传动装置，操纵系统，润滑系统，辅助机构和床身五部分。其工作原理为：以曲柄滑块机构作为工作机构，滑块是强制运动的，传动系统为一级、两级或三级等传动，一级传动由电机通过一级带传动，带动飞轮旋转，两级或三级等传动由电机通过一级带传动，带动飞轮旋转，然后通过齿轮传动，再带动曲轴旋转，通过连杆机构把回转运动转化为滑块的往复直线运动。
本设计主要是传动部分的设计，其中包括传动形式的设计和传动部件的设计。本设计使用三相异步电动机，传动系统为二级传动系统，电动机通过带传动将动力传递给主传动轴，主传动轴通过齿轮传动将动力传递给曲轴，两根曲轴通过两个相同的齿轮进行联动，从而带动滑块在竖直方向做往复运动。传动部件零件设计主要包括：电动机的选择，飞轮尺寸的设计和校核，齿轮主要参数的设计及齿轮强度的校核，曲柄滑块机构的设计等。
关键词：压力机；传动；曲柄滑块 ；校核
Abstract
This paper mainly was introduced the history of machine press and the actual development of China, then introduced the design method of machine press. This paper mainly was introduced transmission design of JE25-110 open type two-point press.
open type press mainly consist of main transmission part, control system, lubrication system, complementary unit and the body of press. The principle of operation: operating mechanism was crank block mechanism, slider was constrained motion. Transmission system consist of one-ratio gear, two- ratio gear or three-ratio gear and so on. one-ratio gear used electromotor by one-ratio belt transmission drive flywheel rotator. two- ratio gear or three-ratio gear and so on used electromotor by one-ratio belt transmission drive flywheel rotator, then drive crank shaft rotator by gear transmission. Putting cornering properties into to-and-fro translational motion by link mechanism.
This paper mainly was the transmission design, it consist of transmission form design and transmission parts design. This paper used triphase asynchronism electromotor, transmission system was two- ratio gear system，electromotor driven the main transmission shaft by belt transmission ,then main transmission shaft driven shaft rotator by gear transmission .Two shaft rotator linkage by two same gears, and driven the slider to-and-fro translational motion in elevation direction. transmission parts design consist of : the choose of electromotor, design the dimension of flywheel and check it, the dimension design of gear wheel and check the intensity of the gear wheel, the design of crank block part and so on.
Keywords machine press transmission crank block check
目 录
1 绪论 1本设计介绍了机械压力机的历史及我国冲压机械的发展现状，对机械压力机的设计方法进行一定的介绍。本设计主要对JE25-110开式双点曲柄压力机的传动部分进行设计。
开式曲柄压力机主要包括主传动装置，操纵系统，润滑系统，辅助机构和床身五部分。其工作原理为：以曲柄滑块机构作为工作机构，滑块是强制运动的，传动系统为一级、两级或三级等传动，一级传动由电机通过一级带传动，带动飞轮旋转，两级或三级等传动由电机通过一级带传动，带动飞轮旋转，然后通过齿轮传动，再带动曲轴旋转，通过连杆机构把回转运动转化为滑块的往复直线运动。
本设计主要是传动部分的设计，其中包括传动形式的设计和传动部件的设计。本设计使用三相异步电动机，传动系统为二级传动系统，电动机通过带传动将动力传递给主传动轴，主传动轴通过齿轮传动将动力传递给曲轴，两根曲轴通过两个相同的齿轮进行联动，从而带动滑块在竖直方向做往复运动。传动部件零件设计主要包括：电动机的选择，飞轮尺寸的设计和校核，齿轮主要参数的设计及齿轮强度的校核，曲柄滑块机构的设计等。
关键词：压力机；传动；曲柄滑块 ；校核
Abstract
This paper mainly was introduced the history of machine press and the actual development of China, then introduced the design method of machine press. This paper mainly was introduced transmission design of JE25-110 open type two-point press.
open type press mainly consist of main transmission part, control system, lubrication system, complementary unit and the body of press. The principle of operation: operating mechanism was crank block mechanism, slider was constrained motion. Transmission system consist of one-ratio gear, two- ratio gear or three-ratio gear and so on. one-ratio gear used electromotor by one-ratio belt transmission drive flywheel rotator. two- ratio gear or three-ratio gear and so on used electromotor by one-ratio belt transmission drive flywheel rotator, then drive crank shaft rotator by gear transmission. Putting cornering properties into to-and-fro translational motion by link mechanism.
This paper mainly was the transmission design, it consist of transmission form design and transmission parts design. This paper used triphase asynchronism electromotor, transmission system was two- ratio gear system，electromotor driven the main transmission shaft by belt transmission ,then main transmission shaft driven shaft rotator by gear transmission .Two shaft rotator linkage by two same gears, and driven the slider to-and-fro translational motion in elevation direction. transmission parts design consist of : the choose of electromotor, design the dimension of flywheel and check it, the dimension design of gear wheel and check the intensity of the gear wheel, the design of crank block part and so on.
Keywords machine press transmission crank block check
目 录
1.1 引言 1
1.2 开式曲柄压力机 5
1.2.1 开式曲柄压力机工作原理 6
1.2.2 开式曲柄压力机组成 7
1.2.3 提高开式曲柄压力机的精度 8
1.3 曲柄压力机的主要技术参数 9
2 压力机总体设计 10
2.1 机身设计 10
2.2 传动设计 10
2.3 滑块设计 10
2.4 油气路设计 10
2.5 压力机设计参数 11
3 传动设计 12
3.1 传动总体设计 12
3.1.1 传动总体设计的方法 12
3.1.2 本设计思路 13
3.1.3 传动零件计算特点 14
3.1.4 装配间隙要求 16
3.2 电动机的选择和飞轮的设计 17
3.2.1 压力机功能的计算 17
3.2.2 电动机功率的计算 18
3.2.3 电动机的选择 19
3.3 飞轮的设计 19
3.3.1 飞轮转动惯量计算 20
3.3.2 飞轮尺寸设计 21
3.3.3 飞轮起动时间核算 23
3.4 带传动的设计 24
3.4.1 带传动形式 24
3.4.2 传送带的设计 26
3.4.3 带轮的设计 28
3.5 齿轮传动的设计 28
3.5.1 齿轮基本参数设计 28
3.5.2 齿轮强度校核 30
3.6 曲柄滑块机构的设计 32
3.6.1曲柄滑块机构运动分析 32
3.6.2 曲柄滑块机构受力分析 34
3.6.3 曲轴基本参数设计 36
3.6.4 曲轴强度校核 37
结论 39
致谢 40
参考文献 41
