SJG0.5-2.8双叉固定式液压升降台设计【含全套CAD图纸】.rar

通过答辩机械毕业设计 CAD 图纸 QQ 21135690 分类号 密级公开宁宁波大红鹰学院毕业设计( 论文) - 双叉固定式液压升降台设计所在学院机械与电气工程学院专业机械设计制造及其自动化班级姓名学号指导老师通过答辩机械毕业设计 CAD 图纸 QQ 21135690 2 诚信承诺我谨在此承诺:本人所写的毕业设计(论文)《 - 双叉固定式液压升降台设计》均系本人独立完成,没有抄袭行为,凡涉及其他作者的观点和材料,均作了注释,若有不实,后果由本人承担。承诺人(签名): 年月日通过答辩机械毕业设计 CAD 图纸 QQ 21135690 第1章绪论 I 摘要本次设计任务是双叉固定式液压升降台,它是一种升降稳定性好,适用范围广的货物举升设备。其起升高度 2800 mm ,举升重量 500 kg,平台尺寸 2220 ×1000 mm 。其动作主要是由两个双作用液压缸推动“X”型架,带动上板移动来实现的。该液压升降台主要由两部分组成:液压部分和机械部分。设计液压部分时,先确定了液压系统方案。选择液压基本控制回路时,换向回路选择三位四通电磁换向阀;平衡回路选择用液控单向阀。确定各种基本回路后,又确定了液压系统传动形式,拟定液压系统原理图,然后对液压元辅件进行了设计、选择,并对其进行校核。机械部分主要由上板架、下板架、内连杆和外连杆四部分组成。通过设计、选择机械部分材料与结构,并对其进行受力分析与强度校核,结果证明机械部分结构设计可以满足要求,进一步完成了本次设计题目。关键词: 双叉,液压升降台,校核,机械部分全套设计加 21135690 通过答辩机械毕业设计 CAD 图纸 QQ 21135690 第1章绪论 I Abstract The design task is two-pronged stationary hydraulic lift table , it isa good landing stability for a wide range of cargo lifting equipment. Its lifting height 2800mm, weight lifting 500kg, platform size 2220 ×1000 mm. Its action is posed of two double-acting hydraulic cylinders push "X" -shaped frame , led the board to move to achieve. The hydraulic lift is posed of two parts : hydraulic parts and mechanical parts . Design of hydraulic part time , make sure the hydraulic system solutions . When you select the basic hydraulic control circuit , mutation circuit select three four-way solenoid valve ; balancing loop choose check valve . After the identification of the basic circuits , and to determine the form of the hydraulic drive system , developed hydraulic system schematic and accessories for hydraulic element was designed to select and be checked. Mechanical part is posed of the upper plate rack, lower plate frame, the connecting rod and the outer posed of four parts . By design, choice of materials and structural mechanical parts , and its stress analysis and strength check , the results prove that the design meet the requirements of the mechanical part of the structure , and pletion of this design topics. Keywords : Double fork,