SU475268A1 - Twig machine - Google Patents

Description

The invention relates to a device for cleaning tree trunks from branches and can be used in the forest and woodworking industry.

Known for mischinear machine, including, and the frame, a two-knife system with a drive to press the knives in the trunk and pulling the mechanism. However, such delimbers have low quality of pruning and low productivity.

The aim of the invention is to eliminate these drawbacks.

To do this, each of the knives is made spiral-shaped and mounted on a vertical shaft and movable along its longitudinal axis to a shaft mounted on the bottom brackets of carriages, each of which is movably mounted on a common guide rigidly fixed on the frame of the parallel shaft of knives, and the shaft of each knife is kinematically It is connected with a torsion spring connected with the second end to the carriage body, and through a block rigidly attached thereto to the end of the flexible link of the drive.

FIG. 1 depicts a twig machine with a double-limb pruning system; in fig. 2 is a view along arrow A in FIG. one.

Succore machine contains two knives 1, made in the form of spatial spirals so that the blade of each of them is located approximately along a helix. Each knife is mounted on the shaft 2 and, together with it, has the possibility of reversing rotation at a certain angle in the vertical plane relative to the carriage 3. The shaft is connected with the spring 4 torsion. The carriages are mounted on a naravlating 5, rigidly mounted on the frame. The carriage is kept from vertical rotation relative to the guide with 5 running rollers 6. The clamping drive to the tree consists of a rope 9, which is stored on blocks 7 and 8, connected to the hydraulic cylinder 10. The carriages, when not in working condition, are moved apart to the extreme positions under the influence of return bearings. eleven.

Succore machine works as follows.

Wood 12 is placed on top of the knives 1, which are under the action of the gdrotsplinder

10, the clamping actuators, together with the carriages 3, come closer together in a horizontal direction and then, twisting the fastener 4, make a counter-turn in vertical planes. In this case, the blades of both knives 1

tightly wrap a tree trunk around the entire circumference. Through the feeder, the tree is dragged through a two-legged system and the branch is cut. After that, the carriage 3 with the knives 1 is moved apart in different directions when

return spring assist 11, and working

the cycle repeats in

same sequence.

Subject invention

The twisting of the machine, which includes the frame, a two-burned system with a drive to press the knives to the trunk and a dragging mechanism, characterized in that, in order to improve the quality of branching and productivity, each of the knives is made

screw-shaped and mounted on a vertical shaft that is rotatable in a vertical plane and movable along its longitudinal axis, mounted in bearings of carriages, each of which is movably mounted on a common frame rigidly fixed to the frame parallel to the shaft of the blades, the shaft of each knife is kinematically connected with a torsion spring, connected by a second end to the carriage body, and through a block rigidly fixed on it - to the end of the flexible link of the drive.

Bu (A

12