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摘要：颚式破碎机是一种应用最为广泛的破碎机械由于其结构牢固,能处理 的物料块度范 围大 ,操作文护方便 ,因此自从它一百 多年前 问世 以来 ,至今仍然是粗碎、中碎及细碎作业中主要和有效的破碎设备。21946
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而液压复摆颗式破碎机与常规复摆颗式破碎机的保险装置有着本质的不同,肘板只是运动部件 ,而保险功能 由液压系统来承担 。当破碎机正常运转时,肘板的运动形式与常规颗式破碎机相同;当破碎机破碎腔内落入较大非破碎物时,为保证整机不受损坏 ,液压系统卸压,主油缸活塞杆后退,动颗下端部、肘板等部件随主油缸活塞杆后移,排料 口增大 ,使非破碎物顺利排出。然后,为保证出料粒度,在液压系统的作用下,动颗下端部 、肘板等部件随主油缸活塞杆前移,使排料口恢复至工作尺寸。上述往返运动是在破碎机运转的情况下进行的,也就是说 ,为了保证液压复摆领式破碎机的正常运转 ,必须设有常规鄂式破碎机所没有的往返运动机构。
毕业论文关键词：破碎、 液压 、泵站
The design of hydraulic system of jaw crusher
Abstract:Jaw crusher is one of the most widely used crushing machine due to its stable structure。It can deal with the material around the big pieces, convenient operation and maintenance, so since it came out more than one hundred years ago, is still in the coarse crushing, broken and finely homework of main and effective crushing equipment.
And hydraulic compound pendulum crusher with conventional compound pendulum measuring crusher insurance device of a very different nature, bracket is moving parts, and insurance functions By the hydraulic system.When the crusher run properly, the movement of the bracket form is the same with conventional crusher;When crusher cavity into larger than broken objects, in order to guarantee the machine from being damaged, the hydraulic system pressure relief, the main oil cylinder piston rod back, moving a bottom part, bracket and other parts with the main oil cylinder piston rod backwards, discharging mouth, make not broken out.Then, in order to ensure the discharging granularity, in under the action of the hydraulic system, moving a bottom part, bracket and other parts with the main oil cylinder piston rod moved forward, make the discharging mouth size back to work.The movement was conducted under the condition of the crusher operation, that is to say, in order to guarantee the normal operation of hydraulic compound pendulum brought the crusher, must be equipped with conventional mandibles crusher institutions do not cycle.
Key words: Crushing, hydraulic pressure, hydraulic pressure station
目 录
前 言
1 绪论 7
1.1 背景与意义 7
1.2 颚式破碎机的介绍 7
2 颚式破碎机液压系统设计课题简介 8
2.1 课题介绍 8
2.2 课题的设计要点 8
2.3 课题的主要技术参数 9
3 液压系统设计 9
3.1 液压系统动作分析 9
3.1.1 液压回路的拟订 9
3.1.2 液压原理图整合 12
3.1.3 液压系统设计分析说明 13
3.2 系统参数计算 14
3.2.1 系统元件的选型 16
3.3 液压系统动作及其控制方式 20
3.4 液压系统操作说明 21
3.4.1 排料口开度调整 21
3.4.2 排料口开度调整 21
3.4.3 “过铁”控制 21
3.4.4 人工清除超大非破碎物 22
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