【正文】
、液壓缸設計 I Abstract ABSTRACT This is the subject of internal bustion forklift lifting hydraulic cylinder design, the hydraulic cylinder design including the working pressure of the system is selected, the hydraulic cylinder inner diameter and outer diameter of the piston rod and the piston diameter, diameter determination, hydraulic cylinder wall thickness calculation to determine the thickness of the cylinder block, cylinder head, length, buffer device is calculated and the piston rod stability checking. Design and application of the experience design method and puter aided engineering technology, according to the empirical formula, determine the hydraulic cylinder installation project, design of hydraulic cylinder piston and piston rod size parameters, check matching bolt, pin. Finally with the drawing software CAD plete hydraulic cylinder assembly drawing. Key words: forklifts, lifting hydraulic cylinder, hydraulic cylinder design II 目錄 目 錄 1. 引 言 ............................................................ 1 ....................................................... 1 提升液壓缸簡介 .................................................. 1 本設計的主要緩沖裝置計算 ................................................. 7 3. 液壓缸的校核 ..................................................... 9 ................................. 9 ................................................. 9 ,缸體螺紋處的拉應力 .................... 10 .................................. 10 ........................................ 11 .................. 錯誤!未定義書簽。,液壓缸的設計包括了系統工作壓力的選定、液壓缸內徑和外徑的確定、活塞桿直徑和 活塞直徑的確定、液壓缸壁厚的計算、缸蓋厚度的確定、缸體長度的確定、緩沖裝置的計算以及活塞桿穩(wěn)定性的驗算。 4. 液壓缸的結構 .................................... 錯誤!未定義書簽。 密封裝置的選用 ................................. 錯誤!未定義書簽。 液壓缸緩沖裝置的選用 ........................... 錯誤!未定義書簽。 Ⅲ 泰山學院本科畢業(yè)設計 1 引 言 叉車發(fā)展于上世紀 20 年代,由工作裝置完成垂直方向作業(yè),由車輪行駛系統完成水平方向作業(yè),是室內搬運的首選工具。目前門架下降還采用負載勢能回收的原理,實現門架下降的無級調速。 2 泰山學院本科畢業(yè)設計 圖 2 提升裝置示意圖 由于鏈條固定在框架的一端,活塞桿的行程是叉車桿提升高度的一半,但同時,所需的力變?yōu)樵瓉淼膬杀叮ㄓ捎谒璧墓Ρ3殖V?,但是位移減半,于是負載變?yōu)樵瓉淼膬杀叮?Py試驗壓力,一般取最大工作壓力的( ~)倍( Mpa)。所以用經驗法選取壁厚: 5