1、XXXX 大学学士学位论文 摘要 - - 摘摘 要要 本论文主要阐述了一般掩护式液压支架的设计过程。设计内容包括：选 架型、 总体设计、 主要零部件的设计、 主要零部件的校核和液压系统的设计。 由于该煤层厚度适中， 选用掩护式液压支架。 煤层厚度介于m8.35.2之 间，煤层厚度变化较大，选用调高范围大且抗水平推力强且带护帮装置的掩 护式支架。支架采用正四连杆机构，以改善支架受力状况。顶梁、掩护梁、 底座均做成箱体结构；立柱采用双伸缩作用液压缸，以增加工作行程来满足 支架调高范围的需要。推移千斤顶采用框架结构，以减少推溜力和增大移架 力。为了提高移架速度，确保对顶板的及时支护，采用锥阀液压系统
2、。 关键词：液压支架 液压 四连杆机构 采煤 支架选型 推溜 移架 XXXX 大学学士学位论 Abstract - - Abstract The article mainly elaborated the general shield type hydraulic pressure support design process. The design content includes: Chooses, the system design, the main spare part design, the main spare part examination and the hydraulic
3、 system design. Because this coal bed thickness is moderate, selects the shield type hydraulic pressure support. Coal bed thickness is situated between between the 2.53.8 rice, coal bed thickness change bigger, selects adjusts the high scope big also the anti- horizontal thrust is strong also the be
4、lt protects helps the equipment the shield type support. The support uses the four link motion gear, improves the support stress condition. The top-beam, caving shield, the foundation makes the packed in a box body structure; The column uses the double expansion and contraction function hydraulic cylinder, increases the power stroke to satisfy the support to adjust the high scope the need. Passes the hoisting jack to use the portal
