SU115858A1 - A device for dropping logs from a longitudinal chain log - Google Patents

Description

This invention relates to remotely controlled devices for dropping logs from a longitudinal chain saw.

Known for this purpose, devices made in the form of single-arm levers, pivoting in a plane, perpendicular to the movement of the log, and driven by a mechanical drive from a logging chain that interacts with a hook and hook, connected by a cable through a cable-blocking system with arms that drop the log, have the disadvantage of not having a clear interaction with the chain link, which causes the chain to break off from the sprockets and a significant run-up of the ends of the dumped logs.

The proposed device does not have these disadvantages. The invention consists in switching the interaction of the hook with the less stretched idle branch to the more stretched working branch and, therefore, more stably attached to the sprocket, which ensures the link reliable operation and dumping of logs with a fairly accurate alignment of their ends. In addition, to ensure a fixed position of the chain link, which interacts with the hook, it is passed through the guide, leveling links of the chain.

The drawing shows the U) Construction in two projections.

The logger consists of a dumping lever 1 with a pusher 2, which is mounted in the center of the stack on the bars x 5. The dumping lever moves on the shaft 4 by bushings 5, which are welded to its lower ends, and the shaft is clamped into the brackets 6, which are bolted to the bars and m 3. The hook 7, which clings to the vertical link 8 of the working branch of the brevnotaska chain, serves as a drive for actuating the drop lever.

The hook is placed in the holder 9 and moves therein on the hub 10. On the axis 1 passing through the hub on both sides of the cage, the number No. 115858-2 is installed.

Zuns which, during movement of the cage with a hook, slide in the guide slots of the squares of the frame 12, which serves as the basis of the entire drive unit. This frame is bolted to the upper bars and a logging truck under the working branch of the chain. To force the hook to be hooked, a spring 13 is used on the chain link, mounted on the pin of the guide 14 and welded to the holder 9.

To attach the hook with the clip to the drop lever, a cable 15 is fastened to the clip with a lanyard 16, which is used to adjust the cable 17 attached by races 18 to the lever. The direction of movement of the cable during the lifting by the lever is carried out by a vertical 19 and horizontal 20 blocks attached to the beam and a logging truck.

For actuation of the hook serves as an electromagnet 21 mounted on the arm 22 having a hook 23. For fixing the hook in the initial position with the spring pressed (in FIG. 2 shown in dotted line), a pin 24 which enters the aperture 25 of the hook and presses the spring 26. Curved the wide end of the pin passes in the guide hole of the bracket 27 welded to the yoke 28. A roller 29 mounted at the end of the frame between the elbows serves to pull the hook from the link after the log has been reset and the spring has been loaded.

When an electromagnet is triggered by a pulse set from an etching console, the puff 24 is pulled out of the hook hole 25, the spring 13 pushes the hook up and it engages over the very same vertical link of the moving chain, the distance required for dropping the log with the lever.

The hook, moving further, rests against the lower end of the roller 29 and exits the chain, simultaneously becomes on the pin 24 and charges the spring for the next cycle of operation, and the reset lever, located eccentric to its axis, returns the hook to its original position under the action of its own weight.

Subject invention

1. A device for dropping logs with a longitudinal chain logger with remote control, made in the form of single-arm levers, pivoting in a plane, perpendicular to the movement of the log, and driven by a mechanical drive from a chain-log, interacting with a hook hook, connected by a cable through a cable block system with arms dropping a log, characterized in that, with the aim of sufficiently accurate dumping of the logs with their ends, the hook-hook interacts with the vertical link of the working belt Twi chains.

2. Form of the device Pop. 1, characterized in that, in order to reliably engage the hook-to-hook with the working chain link, the link at the point of interaction passes along guide rails, which align the chain link.