SU366134A1 - DEVICE FOR CUTTING THE LOGS - Google Patents

Description

The invention relates to Pizhneskladsky forestry equipment and can be used in forestry and woodworking enterprises.

A device for dropping logs, comprising a longitudinal conveyor, dropping levers, rigidly interconnected by a common rail, and driven with a control system is known.

However, the known devices do not ensure the reliability of dropping small diameter logs.

The purpose of the invention is to provide case dropping of small diameter logs.

To do this, on the plank with an interval that is a multiple of the traverse of the traverse of the longitudinal conveyor, the stops are articulated with the possibility of turning along its longitudinal axis.

FIG. Figure 1 shows schematically the proposed device for dropping logs; in fig. 2 - restricted areas of movement of dumping levers.

The device for dumping logs consists of levers 1 of a bent shape, having the ability to rotate on axis 2 and rigidly interconnected by a strap 5. The levers are driven by a rod of a hydraulic cylinder 4 and, in the initial position, are located at the conveyor 5 outside the traverse 6 movement zone. with an interval multiple of schagu

the traverse 6 is attached to the stops 7, which are rotatable in order to prevent breakage when they are possibly collided with the traverses.

To eliminate the impact of the stops 7 on the butt of the traverse 6 to the initial momeit of log shedding, a prohibited zone of leverage S Si -) - S9 is provided, where Si is the width of the traverse,

2 - path traversed by 6

time of passage of the lever path from the initial position to the traverse at the maximum conveyor speed 5.

The control circuit of the levers is equipped with a synchronizer, providing movement of the stops 7 when dumping logs only outside the forbidden zone. The synchronizer is made in the form of a cam 8, mechanically connected with

the conveyor shaft 5 and acting on the opening contacts 9, included in the control circuit in series with the control button 10.

During the passage of the conveyors 5 of a distance equal to the pitch of the traverse, the cam 8 makes one complete revolution. The profile of the cam 8 is designed in such a way that during the opening of the Uior 7 against the forbidden zone the contacts 9 are open, and for the rest

time closed.

The command to reset the log is added either by the operator via control button 10, or automatically. The control button 10 closes the contacts to the "reset" in the control circuit of the electric suede 11. In this case, if the traverse 6 is in the forbidden zone 5, the contacts 9 are open by the cam 8 and the log is not reset. As soon as the cross bar 6 passes through the restricted area, the cam 8 closes the contacts 9 and the command to drop the log is transmitted to the electric hammer 11, which acts on the hydraulic cylinder 4. The levers 1 turn on the axis 2 and drop the log into the drive. After that, the control button 10 opens the contacts to "reset and closes the contacts to" return to the control circuit. At the same time, the electric trap 11 is given a command to "return, and the levers / under the influence of the hydraulic cylinder 4 are returned to the initial position. In case of meeting the traverse 6 with the support 7 while moving the levers / between the cross arms 6, the stops 7 rotate

traverses along the longitudinal axis of the strip 3 and do not hinder their movement.

Subject invention

Claims (2)

1. A device for dropping logs, including a longitudinal conveyor, dropping levers, rigidly interconnected by a common bar, and driven with a control system, characterized in that, in order to reliably dropping small diameter logs on a bar, they are fortified with a hinge at intervals that are traversal steps longitudinal conveyor and can be rotated along its longitudinal axis stops. 2. The device according to claim 1, characterized in that, in order to eliminate the impact of the stops on the end of the traverse when dumping the logs from the longitudinal conveyor, the drive of the dumping arms interlocked with the traverse of the longitudinal conveyor using the limit switches.