关键词: 残膜回收, 挑膜滚筒, 凸轮机构, 润滑, 田间试验, 田间管理机械

Abstract: In order to solve the problem of difficult lubrication of cam mechanism of arc reciprocating film picking roller, this paper analyzes the working principle of arc reciprocating film picking roller, and through the structural optimization of the pendulum arm, roller ring shaft, oil nozzle, and roller ring respectively, a roller ring lubrication mechanism is designed, which can lubricate the inner wall of the cam disc and the inside of the roller ring at the same time. Comparative field tests of the two roller ring structures before and after optimization are carried out separately using segmented hourly operations. The test results show that the maximum wear of the inner diameter of the ring is 0.71 mm and the minimum wear is 0.23 mm, and the maximum wear of the outer diameter of the ring is 0.4 mm and the minimum wear is 0.25 mm when the roller ring with the lubrication mechanism is operated for 8 h. The lubrication mechanism can effectively reduce the wear of the ring. The unlubricated rollers have significantly greater wear near the shaft end than near the disk end, while lubricated rollers have significantly less wear and smoother changes. The difference between the near shaft end wear and the near disk end wear is not obvious. Comparing the rings themselves, the outer diameter of the ring does not change significantly, while the inner diameter changes significantly.

Key words: residual film recovery, pick membrane drum, cam mechanism, lubrication, field experiment, field management machinery