关键词: 樱桃, 采摘, 推剪器, 果柄

Abstract: Fresh cherries are delicate and tender, have a short harvest period, and require picking with steams. However, the manual picking methods currently mainly used are laborintensive, dangerous and lowefficiency, which is difficult to meet the requirements of the current development of the cherry industry. Aiming at this problem, this paper has developed a cherryclipper based on the principle of hairclipper, which accomplishes rapid cherry picking by cutting the stems of cherries quickly and continuously. At the same time, this paper also analyzes the factors affecting the shearing effect of cherry stems, and through shearing comparative experimental research, it is obtained that the clipper has the best picking effect when the tooth pitch of the static blade is 3.5 mm, the tooth pitch of the movable blade is 3.0 mm, the movable blade stroke is 3.5 mm and the motor speed is 7 000 r/min. Experiments in the orchard show that people picking cherries with the aid of this device can pick cherries over 9.7 kg on average within half an hour, with a qualified rate of over 98% and a damage rate of less than 1%. It shows that the device can quickly and efficiently pick cherries with a stem without damaging the cherry fruits and fruit trees, and has good reference and application value.

Key words:  cherry, picking, clipper, stem