摘要:當今，隨著高速公路路網的不斷擴大、汽車車速的提高以及車流密度的增大，對 汽車制動系的工作可靠性要求顯得日益重要。因為只有制動性能良好、制動系工作可 靠的汽車才能充分發揮其高速行駛的動力性能并保證行駛的安全性。由此可見，制動 系是汽車相當重要的組成部分，從而對汽車制動系的結構分析和設計計算也就顯得非 常重要。

　　　汽車制動器簡單來講，就是利用摩擦將動能轉換成熱能，使汽車失去動能而停止 下來。因此，散熱對制動系統是十分重要的。如果制動系統經常處于高溫狀態，就會 阻礙能量的轉換過程，造成制動性能下降。越是跑得快的汽車，制動起來所產生的熱 量越大，對制動性能的影響也越大。解決好散熱問題，對提高汽車的制動性能也就起 了事倍功半的作用。所以，現代轎車的車輪除了使用鋁合金車圈來降低運行溫度外， 還傾向于采用散熱性能較好的盤式制動器。

　　　本文全面、系統的介紹了轎車液壓盤式制動器的設計過程。首先概述了盤式制動 器的結構，并簡單描述了國內外的研究情況，在與鼓式制動器的對比中，選擇了制動 系統的布置方案。其次選擇了液壓盤式制動器的結構型式，通過對盤式制動器的主要 參數進行選擇、主要零部件的設計計算以及液壓驅動型式的設計，完成了整個液壓盤 式制動器的結構和尺寸計算。運用 AutoCAD2008 軟件的輔助，繪制了制動盤、制動 鉗的零件圖和制動器的裝配圖。

關鍵詞：液壓盤式制動器，結構型式，設計計算

Abstract:　Today, with the highway road network continues to expand, increase in vehicle speed and  traffic  density  increases,  the  work  on  the  braking  system  reliability  become increasingly important. Because only the braking performance good, reliable vehicle braking system to give full play to its high-speed dynamic performance and to ensure driving safety. This shows that the brake system is a very important part of vehicle, so the structure on the braking system analysis and design calculations are extremely important.

　　　Automotive brake simply, is to use friction to convert kinetic energy into heat energy, so to lose momentum and stop the car down. Therefore, the cooling of the braking system is very important. If the brake system often in high-temperature state, it will hinder the energy conversion process, resulting in brake performance. The more run fast car, the heat generated by braking up the greater the impact on the greater braking performance. Solve the thermal problem, the vehicle's braking performance also played a role in duplication of efforts. Therefore, in addition to modern cars use aluminum rim wheels to reduce the operating temperature, but also tend to use a better thermal performance disc brakes.

　　　This comprehensive and systematic introduction to the car design process of hydraulic disc brake. First, an overview of the structure of disc brakes, and a brief description of the situation at home and abroad, in comparison with the drum brake, select the brake system layout. Second, choose the structural type of hydraulic disc brake, disc brake on the main parameters of selection, the main components of the design calculations and design of hydraulic propulsion, hydraulic disc brakes completed the structure and size calculations. Supporting the use of AutoCAD2008 software, rendering the brake disc, brake caliper and brake parts diagram, assembly drawing.

Keyword: Hydraulic disc brake，structure，design and calculation