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貨車循環(huán)球式轉向系統(tǒng)設計_畢業(yè)設計說明書-展示頁

2024-09-07 20:08本頁面
  

【正文】 d steering linkage parts, including steering important parts of automobile steering systems, the performance of a direct impact on the safety and reliability of the cars. Power steering system (Power Steering System), also called steering afterburner system in the mechanical steering system based on the creation of a steering system steering afterburner device. This topic entitled trucks recirculating ball steering system design. Subject to mechanical steering recirculating ball steering system design and check the overall steering trapezoid design and checking. First automobile steering systems overview, analysis of the working principle and the advantages and disadvantages of various steering system, development status, the working principle of the various steering and steering system design overview of two preliminary data preparation for design , the steering system of the overall program of choice, there are turning to the determination of the main performance parameters of the system. steering the choice of form and an initial parameters, select the data of the recirculating ball steering, and its main ponents stress analysis and data check. Fourth, the power steering mechanism design, an overview of the requirements for power steering, power steering layout scheme and the calculation of individual data. Fifth overall steering trapezoidal design and checking the size of the design of the steering linkage and data according to the trapezoid. Use AutoCAD to make the final design of the recirculating ball steering part drawings and assembly drawings. Mainly carried out in this paper, the design of the recirculating ball steering and check the steering system parts, the main methods and theoretical parameters of automotive design experience. the mechanical design of the course content and the university design, the results meet the strength requirements, safe and reliable. Key words: Steering system。最后設計中運用 AutoCAD 作出循環(huán)球式轉向器的零件圖以及裝配圖 .在本文中主要進行了 循環(huán)球式轉向器 的設計和對轉向 系統(tǒng)零件 的校核,主要方法和理論采用汽車設計的經(jīng)驗參數(shù)和大學所學機械設計的課程內容進行設計,其結果滿足強度要求,安全可靠。首先對汽車轉向系 統(tǒng) 進行概述 ,分析各種轉向系統(tǒng)的工作原理和優(yōu)缺點、發(fā)展現(xiàn)狀 ,說明各種轉向器的工作原理 .并對轉向系的設計進行一定的概述 .二是作設計前期數(shù)據(jù)準備 ,對轉向系統(tǒng)的整體方案進行選擇 ,還有轉向系統(tǒng)主要性能參數(shù)的確定 .三是 轉向器形式的選擇以及初 定各個參數(shù) ,對循環(huán)球式轉向器的各個數(shù)據(jù)進行選擇 ,并對其 主要部件進行受力分析與數(shù)據(jù)校核 .四 是對 動力轉向機構的設計 ,概述對動力轉向機構的要求 ,對動力轉向機構的布置方案進行選擇并進行各個數(shù)據(jù)的計算。 本課題的題目是 貨車循環(huán)球式 轉向系 統(tǒng) 的設計。非動力轉向系統(tǒng)又稱機械式轉向系統(tǒng) , 是以人的體力為動力源,其中所有的傳力器件都是機械的,主要由轉向操縱機構、轉向器和轉向傳動機構三部分組成,其中轉向器是汽車轉向系統(tǒng)的重要零部件,其性能的好壞直接影響汽車行駛的安全性和可靠性。駕駛操縱用來改變或恢復汽車行駛方向的專用機構稱為汽車轉向系統(tǒng)。 畢 業(yè) 設 計(論 文) 題 目: 貨車循環(huán)球式轉向系統(tǒng)設計 (英文): 院 別: 專 業(yè): 姓 名: 學 號: 指導教師: 日 期: 貨車循環(huán)球式轉向系統(tǒng)設計 摘要 汽車在行駛的過程中 ,經(jīng)常需要改變行駛的方向,稱為轉向。輪式汽車行駛是通過轉向輪 (一般是前輪 )對汽車縱向軸線偏轉一定角度來實現(xiàn)的。常用的汽車轉向系統(tǒng)分為非動力轉向系統(tǒng)和動力轉向系統(tǒng)兩大類。汽車動力轉 向系統(tǒng) (Power Steering System),亦可稱作轉向加力系統(tǒng),是在機械轉向系的基礎上增設了一套轉向加 力裝置所構成的轉向系統(tǒng)。 課題以機械式轉向系統(tǒng)的循環(huán)球式轉向器設計及校核、整體式轉向梯形機構的設計及驗算為中心。五是 整體式轉向梯形機構的設計以及驗算 ,并根據(jù)梯形數(shù)據(jù)對轉向傳動機構作尺寸設計。 關鍵詞 :轉向系 統(tǒng) ;機械型轉向器 ; 循環(huán)球式 ;液壓式助力轉向器 Truck circulating ball type steering system design Abstract Cars in the course of traveling, often need to change the direction of travel, referred to as steering. Wheeled vehicle with the vehicle longitudinal axis of the deflection angle by the steering wheel (typically a front wheel). The driving control is used to change or restore the direction of vehicle travel special body called the automobile steering systems. Commonly used in automotive steering system is divided into nonpower steering system and power steering system two categories. Nonpower steering system, also known as mechanical steering system, based on a person39。 Mechanical type steering gear。 Hydraulic power steering gear 目錄 1 緒論 ................................................................... 1 汽車轉向系統(tǒng)概述 .................................................. 1 機械式轉向系統(tǒng) ................................................ 1 液壓助力轉向系統(tǒng)( HPS) ....................................... 2 電控液壓助力轉向系統(tǒng)( EHPS) .................................. 2 電動助力轉向系統(tǒng)( EPS) ....................................... 3 線控轉向系統(tǒng)( SBW) ........................................... 5 轉向系設計概述 .................................................... 6 對轉向系的要求 ............................................... 6 轉向操縱機構 ................................................. 7 轉向傳動機構 ................................................. 7 轉向器 ....................................................... 8 2 轉型系方案的選擇及主要參數(shù)的確定 ...................................... 10 轉向系方案的選擇 ................................................. 10 轉向盤 ...................................................... 10 轉向軸 ...................................................... 10 轉向器 ...................................................... 10 轉向梯形 .................................................... 12 轉向輪側偏角計算 ............................................ 13 轉向系主要性能參數(shù) ............................................... 15 轉向器的效率 ................................................ 15 傳動比的變化特性 ............................................ 17 轉向器角傳動比及 其變化規(guī)律 .................................. 19 轉向器傳動副的傳動間隙 ...................................... 19 轉向盤的總轉動圈數(shù) .......................................... 22 3 機械式轉向器設計與計算 ................................................ 23 主要尺寸參數(shù)的選擇 ................................................ 23 螺桿、鋼球、螺母傳動副設計 ....................................... 25 鋼球中心距 D 螺桿外徑 螺母內徑 ................................ 25 鋼球直徑 d 及數(shù)量 n ........................................... 25 滾道截面 .................................................... 26 接觸角 ? ...................................................
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