PULLING-THROUGH DEVICE OF MACHINE FOR PROCESSING OF FELLED TREES Russian patent published in 2001 - IPC

FIELD: lumbering. SUBSTANCE: the device has a frame with caterpillars having a hollow body mounted on the frame for turning by a power cylinder. The caterpillars are provided with detents for engagement with the pulled-through tree. A transmission is placed in the lever cavity for transmission of torque from the reduction gear to the caterpillar. The transmission is made as a chain gear, whose drive sprocket is fastened on the output shaft of the reduction gear installed in the lever cavity on its one end, and a driven sprocket rigidly attached to the shaft located on the other end of the lever in its cavity, and a chain enveloping the sprockets. A hollow body with the caterpillar is mounted on the shaft section projecting from each lever for restricted turn. EFFECT: enhanced efficiency and tractive force. 2 dwg