汽车离合器的液压操纵系统的设计

汽车离合器的液压操纵系统的设计

目录

摘要 (1)

ABSTRACT (3)

0文献综述 (5)

1引言 (7)

1.1BJ1021汽车所用发动机的主要技术规格 (7)

1.2离合器的主要作用 (7)

1.3汽车离合器设计的基本要求 (8)

1.4离合器的工作原理 (8)

1.5离合器的类型 (10)

1.6影响离合器工作的因素分析 (11)

2 BJ1021轻型卡车车用周布弹簧离合器的结构及工作原理 (12)

2.1BJ1021轻型卡车周布弹簧离合器组成 (12)

2.2工作原理 (12)

3 液压操纵系统的设计计算 (15)

3.1液压操纵系统的基本工作过程 (16)

3.2液压操纵机构设计要求 (17)

3.2.1对操纵机构的要求 (17)

3.2.2操纵机构结构形式选择 (18)

3.2.3 踏板力的要求 (19)

3.2.4踏板行程的要求 (19)

3.2.5 结构要求 (19)

3.2.6 其他要求 (20)

4 离合器工作缸及主缸直径计算与分析 (20)

4.1后备系数 的选择 (21)

P (21)

4.2单位压力

4.3摩擦片外径D、内径D和厚度B (22)

4.4压盘的工作压力F及缸径的计算 (22)

5 离合器踏板力与踏板行程的计算与分析 (23)

6 液压油管选择注意事项 (25)

6.1液压油管的选择 (25)

6.2离合器液压操纵管路的布置 (25)

6.3液压管径的选择 (25)

7结论 (26)

参考文献 (27)

致谢 (29)

BJ1021汽车离合器的液压操纵系统的设计

杜凯

西南大学工程技术学院，重庆400716

摘要：本文通过对周布弹簧离合器与膜片弹簧离合器各自优缺点及结构和工作原理的对比，分析，阐述了BJ1021车用离合器改装设计的意义以及改装设计的可行性，并大体上确定了改装设计的方案以及具体的设计计算过程，其中包括：离合器的结构方案分析，离合器基本参数和主要尺寸的选择，膜片弹簧主要参数的选择，扭转减振器的设计及离合器改装设计后与其相配套的液压操纵系统的改装设计。BJ1021采用传统的周布弹簧离合器，而周置的螺旋弹簧在高速下，因受离心力作用会产生横向挠曲，弹簧严重鼓出，

从而降低了对压盘的压紧力。膜片弹簧离台器结构简单，接合平顺。膜片弹簧本身可同时起压紧弹簧和分离杠杆的作用，且具有良好的弹性特性。因此越来越多地取代了传统的周布弹簧离合器。汽车离合器操纵机构是驾驶员用来控制离合器分离又使之柔和接合的一套机构。它始于离合器踏板，终止于离合器壳内的分离轴承。而液压操纵机构结构简单，摩擦阻力小，传动效率高，离合器接合平稳，整车容易布置，不易受车驾车身变形的影响。

关键词：液压操纵离合器设计

BJ1021 clutch of hydraulic control system design

DuKai

College of Engineering and Technology, Southwest University, Chongqing 400716, China

Abstract: this paper weeks cloth spring clutch and diaphragm spring clutch their respective advantages and disadvantages, structure and work principle of contrast, analysis, this paper expounds the BJ1021 vehicle clutch the significance of modified design and modification design is feasible, and generally determined the modified design scheme and the design of concrete calculation process, including: the clutch structure scheme analysis, clutch basic parameters and the main size of choice, the choice of the main parameters of the diaphragm spring, shock absorber design and clutch torsion modified after the design their matching hydraulic control system with modification of the design. BJ1021 the use of the traditional

weeks cloth spring clutch, and weeks of buy the spiral spring at high speed, by centrifugal force can produce lateral buckling role, spring serious a drum, which reduces the pressure plate to the compaction force. The diaphragm spring is from a simple structure, smooth engagement. Diaphragm spring itself can also up pressure spring and separation of leverage effect, and has good elasticity characteristics. So more and more replaced the traditional weeks cloth spring clutch. Clutch operation is used to control the clutch and the driver of a set of institutions soft joints. It began in the clutch and terminated in the clutch of shell bearings. And hydraulic operation simple structure, friction small resistance, high transmission efficiency, stable clutch engaging, and the easy to decorate, not easy to be CheJia body deformation affected.

Keywords: hydraulic control clutch design