带式制动器设计说明方案.doc

摘要 随着我国机械制造业的迅猛发展，带式制动器越来越多的应用到不同类型的工程车辆上，例如用于卷扬机和生产用机器中以缩短周期性工作时间和确保安全，也被用于各种交通工具(如人力车、汽车和飞机等)中，其优越性得到了广泛的认可。 带式制动器是工程机械、汽车等各种交通工具的一个重要组成部件，直接影响着车辆的安全性。它是利用摩擦力矩来吸收和消耗机器运动部件的部分或全部动能，以降低机器的速度或使其停止运转。本文对挠性摩擦体理论进行了研究，通过一系列的推导分析，得出转矩、带的绕入端、绕出端张力的计算公式。对带式制动器的原理，构造、摩擦材料、选取参数及设计步骤进行了综合的阐述，最后完成简单带式制动器的设计。 关键词：挠性摩擦理论；带式制动器；计算公式 Abstract Along with the rapid development of machine building industry, with an increasing number of brake applied to different types of engineering vehicles, for example, used to hoist the production and use of machines in order to shorten working hours and periodic safety, but also be used to A variety of means of transport (such as rickshaws, cars and aircraft, etc.), its superiority is widely recognized. With brake-engineering machinery, automobile and other means of transport is an important component parts, the direct impact on vehicle safety. It is the use of friction moment to absorb the consumption of machinery and moving parts of some or all of the kinetic energy in order to reduce the speed of the machine or make it stop running. In this paper, the flexible friction theory has been studied, derived through a series of analysis torque, with the entry around the end of the tension around the end of the formula. On the brake with the principles of construction, friction materials, and selected parameters of the steps designing a comprehensive set of the final completion of the brake with a simple design. Key words: Flexible friction theory; belt brake; formula 目 录 1带式制动器的分类 1 1.1简单带式制动器 1 1.2差动式带式制动器 1 1.3综合式带式制动器 1 2带式制动器的特点 2 2.1带式制动器的优点 2 2.2带式制动器的缺点： 2 3摩擦材料 3 3.1对摩擦材料的基本要求 3 3.2摩擦材料的选择 3 3.2.1金属摩擦材料 3 3.2.2 非金属材料 4 4带式制动器的分析研究 5 4.1挠性体摩擦理论 5 4.2带式制动器的设计原理 6 5带式制动器参数计算 8 5.1计算的圆周力F 8 5.2带的张力 8 5.3带宽b的计算 9 5.4最小比压力、最大比压力、比压力的计算 10 5.5制动钢带的厚度的计算 10 5.6铆钉的剪切强度计算。 11 6制动器的发热验算 13 7 键的选择与强度计算 14 8 结论 15 参考文献 16 1带式制动器的分类 带式制动器常用于中、小载荷的起重运输机械、车辆、一般机械及人力操纵的机械中。其型式有简单带式﹑差动带式和综合带式3种。带的一端固定在槓桿支点A 上另一端与槓桿上的B 点连接。带在重锤的重力G