Harrow with tools that rotate - has bearer housing at right angles to travel direction and contg. several adjacent rotating tools with drive mechanism

摘要

The tool holder is releasably connected to a drive shaft (10) formed at its lower end as a blunt cone (20) with a threaded extension (21). The tool holder (16) has a fitting inner cone (22), and the tool holder is axially clamped on the drive shaft by adjustment means (27). In the area of the blunt cone of the drive shaft one or more springs (23) are provided for torque transmission. Also in the same area is a notched toothing. The inner ring (18) of the lower bearing (13) of the drive shaft (10) is arranged in a bearing housing (15) which is firmly connected to the bearer housing (2). USE/ADVANTAGE - A rotary harrow which is insensitive to shocks and requires little attention.