SU791537A2 - Gripping and knot-cutting head - Google Patents

Description

(54) CAPTAIN-TILE HEAD-HEAD

one

The invention relates to the forest and woodworking industry.

According to the main author. St. No. 725876 is known for gripping the lobe, including the housing, the upper blade and the side knives having a drive, the hull being provided with cantilevered shafts on which the side knives are mounted and the drives of the last knives are connected with the levers.

The main disadvantage of this head is the low quality of pruning. The side knives for reliable grip of the pack should have straight lower ends. Therefore, the lower part of the surface of the trunk during pruning is not covered tightly by the side knives, which leads to poor quality pruning of the branches of the lower part of the tree being processed.

The purpose of the invention is to improve the quality of pruning.

This is achieved by the fact that the gripping head is equipped with additional levers, which are mounted on cantilever shafts, and three-shouldered levers, one shoulder of each of which is pivotally attached to the body, another is connected to the additional lever by means of hinges and a spring-loaded bar, and the third is equipped with a knife .

FIG. 1 shows the described head, front view; in fig. 2 - then

5, side view ..

The gripping head includes the housing 1, on which the cantilever shafts 2 and 3 are mounted. The cantilever shaft 2 is made with the lever 4, and

 cantilever shaft .3rd by levers 5 and 6. In the front part of housing 1, the upper knife 7 is mounted, and side knives 8 and 9 are mounted on cantilever shafts 2 and 3. Inside housing 1 is installed

15 A drive of rotation of cantilever shafts, which can be made in the form of a power cylinder 10 and equalizing rod 11. Shaft 3 with knife 9 is turned by power cylinder 10 with lever 5, and shaft 2 with knife 8 by same force cylinder with levers 4 and 6, connected by an equalization draft 11.

In case 1 below cantilever shafts

25 2 and 3 with each of the lateral sides of the hull, axles 12 and 13 are equipped with triplex arms 14 and 15, and a knife is mounted on the lower shoulder of each of them 16. Each canon shaft 2 and 3

30 is provided with an additional lever 17,

which is pivotally connected to the upper arm of the respective three-arm lever by means of a rod 18, a spring-loaded spring 19, and hinges 20. At the upper end of the rod 18 is fixed to the restrictive nut 21.

The gripping head works as follows.

With the help of the withdrawable beam of the delimbing machine, the delimbing head with the open knives 8, 9 and three-shouldered levers 14, 15 is guided onto a tree lying on the ground (or in a stack). With the help of the power cylinder 10 through the levers 5, b, 4, the equalization bar 11 and the shafts 2 and 3, the knives 8 and 9 are rotated, clamping the tree trunk. Simultaneously with the knives 8 and 9, the three shoulders rych.gi 14, 15 with knives 16 are rotated. When the shafts 2 and 3 rotate, the levers 17, compressing the spring 19, act on the rods 18, which in turn act on the upper ends of the three shoulders 14 and 15, turning them around the axes 12 and 13. Then the tree is laid in the pulling device (not shown in the drawings) and, dragging it through the same gripping-delimbing head, they cut the branch off. The three shoulders arms 14 and 15 with knives 16 mounted on them, through the above kinematic system synchronously with the side knives, are pressed against the trunk. In case the knives 16 fall on the sags or the curved section of the stem, they are moved apart by the action of the arching force. , compressing the springs 19. After passing the curved section of the barrel, the knives 16 with the springs 19 are returned and tightly pressed against the surface of the barrel. This achieves higher quality pruning. In addition, due to the fact that the axes 12 and 13 of the three-shoulder arms 14, 15 are displaced downward relative to the shafts 2 and 3, the knives 16 overlap the lower part of the perimeter of the trunk, which is poorly covered by the side knives 8 and 9. Thus, all the knives are gripping delimbers heads copy the trunk well along the entire perimeter of its cross section, providing high-quality pruning of branches.

Formula-invention

Gripping-missed head on the bus. St. No. 725876, characterized in that, in order to improve the quality of pruning, it is equipped with additional levers, which are mounted on cantilever shafts, and three-shoulder levers, one shoulder of each of which is hinged to the body, the other is connected with an additional lever by means of spring hinges rod, and the third is equipped with a knife.

Sources of information taken into account in the examination

1. Copyright certificate (USSR № 725876, CL. In 27 L 1/00, 10.23.1978.

Claims (1)

The claims of the invention are for the purpose of higher knives, it is equipped with arms, which is a gripping and delimbing head according to ed. St. No. 725876, with the fact that, with the help of trimming quality, the wife is additionally mounted on cantilever shafts, and with three-arm levers, one shoulder of each of which is pivotally mounted on the housing, the other is connected to the additional lever by means of hinges of a spring-loaded rod, and the third equipped with a knife. Branch of PPP ’'Patent *', Uzhgorod, Project 4