SU1549823A1 - Timber stack forming device of logging vehicle - Google Patents

Abstract

This invention relates to logging vehicles. The aim of the invention is to increase productivity. The device for forming timber packs contains poles 3,4 fixed on frame 1, in the upper parts of which horizontally located two-section telescopic beams are fixed. The fixed links 5,6 of the latter are fixed on the uprights 3,4, and the movable links 7,8 are installed inside the links 5,6 and are spring-loaded with a spring 9 relative to them. On links 7,8 V-shaped guides for trees 13 are fixed. To link 6 one end of the cable is attached to the cable loop 14, and its second end is passed through the blocks 15 and connected to the hydraulic cylinder of the cable 14 hinge fastening on the rack 3. At the ends of the hydraulic cylinder, there are fixed and fixed blocks for storing the cable loop 14. Hydraulic distributors with control elements associated with movable links 7.8 are fixed to the fixed links x 5.6. A hand-operated hydraulic valve is inserted into the drive of the cable pulling hydraulic cylinder. 2 hp f-ly, 4 ill.

Description

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Claims (3)

Claim 1. A device for forming a bundle of wood of a forestry vehicle, comprising racks and a cable fixed to the vehicle frame, the first end of which is connected to the first rack, and the second is stored through blocks fixed to the second rack, and connected to a tightening mechanism, characterized in that, in order to increase productivity, it is equipped with horizontal telescopic beams connected to each other, fixed by fixed links to the upper parts of the racks and spring-loaded completely motionless moving links, at the ends of which guides for trees are fixed, located relative to each other in a U-shape, while the tightening mechanism is made in the form of a hydraulic cylinder fixed to a second rack for attaching to it a second end of a cable connected by cavities to control valves with control elements, fixed on the fixed links of the beams with the possibility of interaction of their control elements with the movable links of the beams. 2. The device according to π. 1, characterized in that the control valves with control elements are made of two-position four-line, the first line connected to the rodless cavity of the hydraulic cylinder, and the second line to the rod cavity of the hydraulic cylinder, the third line to the drain line, and the fourth to the discharge line, for communication in one position the first line - with the third, and the fourth - with the second, in a different position the second line - with the third, and the fourth - with the first, and the device is equipped with a three-position four-line hydrodistributor manually operated cable connected by the first line to the rodless cavity of the hydraulic cylinder, the second line - with the rod cavity of the hydraulic cylinder, the third line - with the drain line, and the fourth line - with the discharge line for communication in the first position of the first line with the third and fourth lines - with second, in the second position - the third line with the fourth line and locking the first and second lines, and in the third position of the second line - from the third, and the fourth line - from the first, while at the entrance to the on-off directional control valves in solid lines installed check valves. 3. The device according to π. 1, characterized in that at the ends of the hydraulic cylinder are fixed bypass blocks for the second end of the cable.