Abstract: Focusing on the rapid erection requirements of special vehicles under heavy loads, and to solve the problem that the gas-liquid hybrid driving method is difficult to achieve erection within 15 s, the optimization of the traditional gas-liquid driving method and the erection structure is studied. The scheme of using high-pressure accumulator to drive the erection of a three-stage cylinder is adopted, and the three-hinge point erection structure and buffer device are optimized according to actual needs. The rapid erection scheme is simulated and verified by the simulation software AMESim, and an experimental prototype is built for rapid erection experiments. The experimental results show that in the scheme, the erecting mechanism is driven through the high-pressure accumulator by quickly releasing the high-pressure gas stored in the device which pushes the piston in the accumulator, so that the hydraulic oil quickly flows into the hydraulic cylinder. Then through stage change and the final buffering by means of throttling, the erection to 95.3° in 12.7 s under heavy loads is realized, and subsequently it takes 1.8 s to reach the amplitude of less than 1° with a stable erection angle of 95°. The total rapid erection time is 14.5 s. Compared with traditional hydraulic pump driving method, the erection by the proposed method is increased by 71.5%. Due to the large span of the experimental prototype, and affected by the impact induced by stage change, the elastic deformation of the experimental prototype causes larger amplitude during stage change, so the buffer structure of the experimental prototype needs to be further optimized to ensure the stability of the erection process.

Key words: ordnancescienceandtechnology, rapiderection, high-voltageenergystoragedevice, specialvehicles, gas-liquidhybriddriving