机械机床毕业设计74双腔颚式破碎机说明书

摘要

颚式破碎机作为一种传统的破碎设备，由于其具有结构简单、工作可靠、制造容易、维修方便、适应性强等优点、自1858年问世以来，一直是粉碎行业广泛应用的设备。针对该机型存在的各种缺点，上海一鼎一直对其进行改进和完善。

颚式破碎机的破碎作业时在两块鄂板固定在机架上称为定鄂板，另一块装在运动的动鄂板上称为动鄂板，其表面一般为齿形。动鄂板通过周期性地靠近与远离定鄂板完成破碎与排矿作业。由动鄂、定鄂已经机架侧壁的护板构成破碎空间，因此颚式破碎机的进料口与排料口均为长方形。破碎机的规格用进料口的宽度B和长度L表示。例如进料口的宽度为900mm，长度为1200mm的破碎机表示为900*1200颚式破碎机

颚式破碎机按运动形式分为两种基本形式—简摆颚式破碎机和复摆颚式破碎机。

简摆颚式破碎机是应为动鄂机架上的固定支座作简单的圆弧摆动而得名。复摆颚式破碎机是因为其动鄂在其他机件带动下作复杂的圆弧摆动而得名，因此动鄂点上的轨迹一般为封闭曲线。简摆大多制成大型和中型的，其破碎比i = 3~6。复摆一般制成中型和小型的，其破碎机比可达i=4~10。随着工业技术的发展和要求，复摆颚式破碎机已向大型化发展，并有逐步代替简摆破碎机的趋势。本设计2PE250X500是传统复摆颚式破碎机的基础上采用了新的结构设计,将单腔改为对称式的双腔,工作时一腔进行破碎,另一腔进行排矿工作。这样，在一个工作周期内，该破碎机总共进行了两次破碎和排矿工作，在单位时间内产量是普通单腔颚式破碎机的两倍。生产效得到极大的提高，同时有效地降低了单位产量的功率消耗

Abstract

Jaw crusher, as a kind of traditional crushing equipment, since it has simple structure, reliable operation, manufacturing easy, convenient maintenance, strong adaptability etc, since in 1858, has been shattered since the advent of the equipment widely used in the industry. According to this model, Shanghai various existing disadvantages of its a pot has been improved and perfected.

Jaw crusher broken in two pieces of hubei homework fixed on the board on the frame is called, another piece of hubei board set in motion dynamic hubei installed board called dynamic hubei board, its surface is commonly tooth shape. Dynamic hubei board through periodic near and far from complete set hubei board broken and row ore homework. Dynamic hubei, set by the hubei has frame side guard board constitutes broken space, so the jaw crusher feeding port and discharging mouth are all rectangle. Crusher specifications with feeding port width B and length L said. For example the width of the feeding port for 900mm, length of the crusher for 1200mm expressed as 900 * 1200 jaw crusher

Jaw crusher press movement forms are divided into two basic forms -- Jane put jaw crusher and pendulum jaw crusher.

Jane put jaw crusher is moving in hubei frame should be fixed support for simple arc swinging the name. Because its jaw crusher pendulum moving in other parts of hubei under complex arc driven swinging named, therefore the trajectory of dynamic hubei point is generally closed curve. Jane put most of the large and medium-sized made its broken, than I = 3 ~ 6. Medium and small pendulum made the general, the crusher ratio of I = 4 ~ 10. As industry technology development and requirements, pendulum jaw crusher has toward large-scale development, and has gradually replace Jane put crusher trend. This design is traditional 2PE250X500 pendulum jaw crusher on the basis of the new structure design, will instead of symmetrical type single lumen dual chamber, work a cavity and broken, another chamber on row ore-prospecting work. So, in a semester, this crusher total two broken and row ore-prospecting work in unit time production is normal single lumen jaw crusher two times. Get a great improve production efficiency, and effectively reduced the unit output power consumption