| 摘要 |
PURPOSE: An excavator tool which can rotate upper and lower connection shafts around a circumscribe swing gear is provided to improve workability by automatically folding a clamp using a compressive spring. CONSTITUTION: An excavator tool comprises a frame(1), a pinion(9), an external swing gear, an upper connection shaft, left and right links(27, 27'), clamps, a hydraulic cylinder(34) and a valve(41). A center joint(7), excavator connection pin holes(3, 3'), and a motor(5) are located on a frame. The pinion is connected to the motor. The external swing gear is connected to the center joint and is cross-coupled with the pinion. The left and right links are installed on the central part of the lower connection shaft. The clamp is installed to left and right links to be crossed around shaft. The hydraulic cylinder is installed between left and right links with compressed by the compressed spring.
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