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某轻型载货汽车离合器的设计
摘 要
汽车离合器依靠其主、从动部分的摩擦来传递动力且能分离的机构。某轻型载货汽车中针对多数摩擦离合器存在散热能力不足，摩擦片易磨损等缺点的现状，根据生产的实际情况和需要，依据经济、可靠、操作方便的原则，采用单片干式摩擦离合器，为保证其技术先进性和经济合理性，还采取了以下措施：（1）为使离合器保证结构简单，尺寸紧凑，散热良好，维修调整方便，从动部分转动惯量小，在使用时能保证分离彻底、接合平顺，选择采用单片盘摩擦片。（2）为保证结构简单、制造容易，保证结构简单，制造方便，考虑压紧弹簧的结构形式选用周置弹簧，压紧弹簧采用圆柱螺旋弹簧。（3）压盘的驱动方式选用凸块-窗孔式，采用3个分离杠杆，且分离杠杆保证足够的刚度，使其工作可靠。（4）分离轴承选用开式的推力球轴承，改进润滑措施后，解决了这类轴承润滑条件差、磨损严重、噪声大、可靠性差、使用寿命低等缺点，在保证工作可靠的条件下降低制造成本。
通过本设计使其具有从动部分转动惯量小、散热性好、结构简单、调整方便、尺寸紧凑、分离彻底等优点，而且在结构上采取一定的措施，能使其结合平顺。
关键词：轻型载货汽车；离合器；设计
Abstract
Clutch rely on their owners, the driven part of the friction to deliver power and can separate institutions. In the presence of a light truck for most of the friction clutch cooling capacity is insufficient, the status quo friction plate wear and other shortcomings, according to the actual situation and the needs of production, according to the economical, reliable, easy to operate, and adopts single dry friction clutch, To ensure its technological advance and economic rationality, has also taken the following measures: (1) In order to ensure a clutch of simple structure, compact size, good heat dissipation, easy maintenance adjustments, small moment of inertia of the driven part, guarantee the separation during use thorough, engaging ride, choose to adopt the single-plate friction plate. (2) To ensure that the structure is simple, easy to manufacture, to ensure that the structure is simple, easy to manufacture, consider the structure chosen compression spring week set spring, compression spring using helical springs. (3) platen drive mode selection bumps - fenestrae, using three separate levers, and the separation lever to ensure sufficient rigidity to make it work reliably. (4) The selection of open bearings thrust ball bearings, lubricate the improved measures to address this type of bearing lubrication conditions are poor, badly worn, noise, poor reliability, service life and low defects, reduce in ensuring reliable condition the manufacturing cost.
Through this design it has a moment of inertia of the driven part of the small, good heat dissipation, simple structure, easy adjustment, compact size, complete separation, etc., and to take certain measures in the structure, enable it to combine smooth.
Keywords: Light Truck; clutch; design
目 录
1前言 1
2总体方案论证 2
2.1离合器总成的结构和有关组件的结构 2
2.1.1从动盘数及干、湿式的选择 2
2.1.2压紧弹簧的结构型式及布置 2
2.1.3 压盘的驱动方式 4
2.1.4分离杠杆的结构型式 4
2.1.5分离轴承的类型 5
2.1.6离合器的通风散热措施 5
2.1.7从动盘的结构型式 6
2.1.8 离合器的操纵机构选择 6
2.2 结论 7
3汽车离合器的设计计算 9
3.1离合器主要参数的选择 9
3.2摩擦离合器主要零件的设计计算 12
3.2.1压紧弹簧的设计计算 12
3.2.2压盘的设计计算 13
3.2.3从动片与从动盘毂的设计计算 14
3.2.4分离杠杆的设计计算 15
3.2.5离台器盖的设计计算 15
3.3离合器操纵机构设计 16
3.3.1离合器操纵机构的结构型式选择 16
3.3.2离合器分离行程及性能计算 18
4结论 19
参 考 文 献 20
致 谢 21
附 录 22
