【作者】 王兵；

【导师】 钟康民；

【作者基本信息】 苏州大学 ， 机械设计及理论， 2006， 硕士

【摘要】 分析了复合传动的技术特点，对机械、液压及气压传动的技术性能与优缺点进行了较为系统的综合分析，分别在以下三个方面对复合传动技术进行研究，设计出了多种新型的复合传动系统，并对其中的大部分系统进行了力学建模及分析计算，给出了能够指导工程设计的力学计算公式。 (1)气—液复合传动系统。利用对称性原则对气—液复合传动系统进行合理配置，形成双作用气—液复合传动系统，相对于传统的单作用系统，可以显著减小装置体积；具有双级液体压力输出的气—液复合传动系统，能实现低压大流量到高压小流量的自动切换。所设计的新型系统有：串联式双作用双级气—液复合传动系统、并联式双作用双级气—液复合传动系统。 (2)液压—机械复合传动系统。利用机械增力机构的力放大作用，与液压传动技术相结合，在输出力及液压缸直径一定的条件下，能显著降低系统压力；而在输出力及系统压力一定的条件下，则能显著减小液压缸的直径。所设计的新型系统有：基于斜楔—铰杆串联组合增力机构的液压—机械复合传动系统、单缸双活塞液压—机械复合传动系统、基于无杆活塞缸的液压—机械复合传动系统、过临界点铰杆增力自锁型液压—机械复合传动系统。 (3)气动—机械复合传动系统。将气压传动与机械增力传动机构合理组合，能相对弥补气压传动系统压力较低的缺点，可部分代替容易造成环境污染的液压传动系统。所设计的新型系统有：基于多级串联增力机构的气动—机械复合传动系统、增力自锁型气动—机械复合传动系统、基于气动肌腱的气动—机械复合传动系统。 通过扬长避短及优势互补，复合传动技术能够弥补单—传动技术的各自缺点。对其继续进行较为系统的研究与技术创新，可以开发出大量符合生产实际的新装置来。更多还原

【Abstract】 The technic feature of composite transmission system is analysed. The mechanism transmission、 hydraulic transmission and pneumatic transmission technical characteristics are relatively systematic discussed. We taking the study and design many composite transmission system from three aspect as follows. Most of system had been mechanics modeling and anacom. The calculating formulae that can be guiding engineering design are given.(1) Pneumatic-hydraulic composite transmission system. Fit together pneumatic-mechanism composite in reason by symmetry principle come into being double-acting pneumatic-hydraulic composite transmission system. Relative to traditional single action system, it can decrease system’s volume. The pneumatic-hydraulic composite transmission system with two-step output liquid pressure automatic switchover from low pressure and mass flow to high pressure and little flow. The main contents are tandem position double-acting pneumatic-hydraulic composite transmission system with two-step output liquid pressure, parallel double-acting pneumatic-hydraulic composite transmission system with two-step output liquid pressure.(2) The hydro-mechanism composite transmission system. Combined with force amplifier mechanism and hydraulic transmission technology, when output force and hydraulic cylinder’s diameter are limited it can decrease system pressure; when output force and system pressure are limited, it can decrease hydraulic cylinder’s diameter. New system as follows: the hydro-mechanism composite transmission system based on combined with toggle and wedge in series, the hydro-mechanism composite transmission system based on double pistion and single cylinder. the hydro-mechanism composite transmission system based on rod-less piston cylinder, The hydro-mechanism composite transmission system based on the toggle with self-locking function on passing the critical position.(3) Pneumatic-mechanism composite transmission system. Combined with force amplifier mechanism and hydraulic transmission in reason can fetch up the disadvantage of low pressure of pneumatic transmission. It can partly replace hydraulic transmission that can easy bring pollsution. We design new system include the pneumatic-mechanism composite transmission system based on multistage force amplifier mechanism in series, the pneumatic-mechanism composite transmission system with force amplifier and self-locking function. the pneumatic-mechanism composite transmission system based on pneumatic muscle.By combined in reason and bring into play advantage composite transmission can fetch up each disadvantage of single drive technology. Keep on studying and technique innovation ,many accord with actual production new equipment will be designed .更多还原