| 摘要 |
A vehicle-carried Tree-Trunk Shaker (TTS) for harvesting tree fruit is configured to prevent the transmission of vibrations from a vibration generator (4) to the TTS and to the vehicle, and for optimal shaking efficiency. Currently, TTSs are allowed to shake multi-directionally and chaotically, convey destructive vibrations to the TTS and to the vehicle, and have low harvesting efficiency. The remedy consists of shaking the trunk only in perpendicular to a pair of jaws (6, 8) clamping the trunk (T), with a unidirectional linear vibration generator vibrating transversally to the trunk. A beam (16) is configured to support the clamping jaws and the vibration generator to form a rigid structure restricted to swivel about a vertical pivot shaft (42) coupled to the vehicle. Thereby there is allowed but a single lateral degree of freedom of motion. Possibly, two vertical pivot shafts (42, 48) are used to that end. |
