摘要:汽車轉(zhuǎn)向系統(tǒng)是決定汽車主動(dòng)安全性的關(guān)鍵總成，如何設(shè)計(jì)汽車的轉(zhuǎn)向特性，使汽車具有良好的操縱性能，是各汽車生產(chǎn)廠家和科研機(jī)構(gòu)的重要研究課題。汽車轉(zhuǎn)向系統(tǒng)可按轉(zhuǎn)向的能源不同分為機(jī)械轉(zhuǎn)向系統(tǒng)和動(dòng)力轉(zhuǎn)向系統(tǒng)兩類。機(jī)械轉(zhuǎn)向系統(tǒng)是依靠駕駛員操縱轉(zhuǎn)向盤的轉(zhuǎn)向力來實(shí)現(xiàn)車輪轉(zhuǎn)向；動(dòng)力轉(zhuǎn)向系統(tǒng)則是在駕駛員的控制下，借助于汽車發(fā)動(dòng)機(jī)產(chǎn)生的液體壓力或電動(dòng)機(jī)驅(qū)動(dòng)力來實(shí)現(xiàn)車輪轉(zhuǎn)向。所以動(dòng)力轉(zhuǎn)向系統(tǒng)也稱為轉(zhuǎn)向動(dòng)力放大裝置。

　　　本文對(duì)大眾桑塔納 2000 車型的具體參數(shù)進(jìn)行了詳細(xì)分析，該車為緊湊型車，具 有性價(jià)比高，實(shí)用性強(qiáng)，購(gòu)車價(jià)和維修成本較低等特點(diǎn)，原車的液壓動(dòng)力轉(zhuǎn)向系統(tǒng)體 積較大，其齒輪齒條轉(zhuǎn)向器采用中間輸出方式，在車內(nèi)安裝布置時(shí)占用空間較大。為 此，結(jié)合該車特點(diǎn)及動(dòng)力轉(zhuǎn)向系統(tǒng)的技術(shù)現(xiàn)狀，為其設(shè)計(jì)一款液壓動(dòng)力轉(zhuǎn)向系統(tǒng)。本文主要包括課題研究背景現(xiàn)狀，并簡(jiǎn)單介紹了動(dòng)力轉(zhuǎn)向系研究現(xiàn)狀問題，然后進(jìn)行整體式液壓動(dòng)力轉(zhuǎn)向器設(shè)計(jì)、轉(zhuǎn)向傳動(dòng)機(jī)構(gòu)及防傷轉(zhuǎn)向柱設(shè)計(jì)和液壓系統(tǒng)設(shè)計(jì)，最后進(jìn)行總結(jié)。整體式液壓動(dòng)力轉(zhuǎn)向器設(shè)計(jì)是本文的重點(diǎn)。主要進(jìn)行了其機(jī)械轉(zhuǎn)向部分的齒輪齒條傳動(dòng)副的設(shè)計(jì)和強(qiáng)度校核，助力裝置部分的動(dòng)力缸的尺寸設(shè)計(jì)和強(qiáng)度校核。本文還進(jìn)行了轉(zhuǎn)向傳動(dòng)機(jī)構(gòu)的設(shè)計(jì)，防傷轉(zhuǎn)向柱的設(shè)計(jì)以及液壓系統(tǒng)的設(shè)計(jì)。

液壓動(dòng)力轉(zhuǎn)向系統(tǒng)經(jīng)過了幾十年的發(fā)展，具有成熟的匹配加上極高的轉(zhuǎn)向精確度，以及更高的可靠性，在未來幾年甚至十幾年的時(shí)間力，依然會(huì)在轉(zhuǎn)向系統(tǒng)市場(chǎng)中占有重要地位。

關(guān)鍵詞：轉(zhuǎn)向系，液壓動(dòng)力，動(dòng)力轉(zhuǎn)向

Abstract:Automotive steering system is to determine the key active safety vehicle assembly. How to design a vehicle steering characteristics. Make car has good maneuverability is an important research topic of all automotive manufacturers and research institutions. Automotive steering system can be divided into mechanical energy shift steering system and power steering system types. Mechanical steering system is to rely on manipulation of steering wheel turning force the driver to achieve steering wheel. Power steer ing system is in the driver's control,  by means of fluid pressure  generated by car engines or motors driving force to achieve the steering wheel. So power steering system, also known as power steering and amplification devices.

　　　Volkswagen Santana 2000, this paper models a detailed analysis of specific parameters of the car for the compact car, has a cost-effective, practical, lower car prices and maintenance costs,  etc.  Of the original car's  hydraulic power steering system than the volume large. The rack a nd pinion steering gear with intermediate output means arranged in the car when installing a larger space. To this end, combined with the vehicle power steering system characteristics and the state of technology. To design a hydraulic power steering system. In this paper, including the introduction, the overall design of hydraulic power steering gear, steering linkage and steering column, anti-wound design, hydraulic system design, concluding five major components. Integral hydraulic power steering gear design is the focus of this article. Conducted a major part of the mechanical steering rack and pinion drive design and strength check of vice, assistance device the size of some of the power cylinder design and strength check. This article has been steering linkage design, the design of anti- injury steering column and hydraulic system design.

　　　Hydraulic power steering system after decades of development. With mature matching with high steering precision and higher reliability. Even in the years to ten years to force the market is still in the steering system plays an important role.

Keyword: Steering system, Hydraulic power, Power steering