SU727430A1 - Logging machine - Google Patents

Description

one

The invention relates to the forest industry and is intended to clean the branches from the branches.

Known logging jugs for cleaning the trunks from the branches, including the base with mounted in the vertical plane of the beam with the working body, having turning gripping elements and dragging mechanism 1, 2 and h.

The disadvantage of these machines is the lack of combination in time of the capture of the tree by the working body (gripping and delimbing organ) and the capture of the tree by the dragging mechanism.

The purpose of the invention is to increase productivity.

The goal is achieved by the fact that the beam is completed with a stepped one, at the upper step of which a working body is placed with a dragging mechanism, in addition, the beam is made telescopic.

FIG. 1 shows the proposed machine, a general view; in fig. 2 - the same, rear view (moment of capture of a tree); in fig. Fig. 3 shows a two-stage beam general view (a variant of the rigid connection of steps with the aid of a closed ring and with a working body in the form of a gripping-delimbing device); FIG. 4 is a view A of FIG. 2; in fig. 5 - technological scheme of work.

The proposed machine consists of a base tractor 1, on the frame of which is supported from the base 2 with a rotary platform 3. On platform 3, a guide support 4 is mounted, equipped with brackets 5 and an axis 6, by means of which the guide support is connected to the platform 3.

The guide support 4 is pivotally connected to the platform 3 by means of hydraulic cylinders 7. In the guide support 4 with the possibility of reciprocating movement from the actuator 8, a step beam 9 is installed with the steps of the upper B and lower B, Step B and B

interconnected bracket 10, made, for example, in the form of a closed ring. The connection of stage B with a matte can be both rigid and articulated.

At the end of stage B, a working body is fixed, for example, a gripping-delimbing device 11. At stage B, also a dragging device 12, made, for example, in the form of traction rollers 13 and 14, mounted on a rotating frame 15 and 16, and a support roller 17 is also fixed. installed on stage B.

The swivel frames 15 and 16 are mounted on brackets 18 rigidly mounted on step B of beam 9 with the help of axles 19, and rotated from hydrocylin wood 2O and 21 hinged on step B and turnable frames 15 and 16. Rollers 13 and 14 are equipped with drives 22,

Depending on the working conditions (depending on the pulling force), the roller 17 may also be driven (instead of the pulling rollers-b, there may be, for example, tracked devices).

Stage In the beam 9 is equipped with a support cross member 23.

The operation of the proposed machine is as follows.

The machine drives up to a pack of trees and is set to a position as indicated in FIG. 2 and FIG. 5.

The beam 9 with the aid of the actuator 8 extends in the direction P, and by means of hydraulic cylinders 7 tilts in the direction M to grip the next tree.

Lever knives locking delimbing device cover the trunk of the tree (knife drive not shown). The beam 9 with the captured tree using the hydraulic cylinders 7 is mixed in a vertical direction upwards. When lifting the beam 9, the butt part of the tree immediately falls into the zone of the pulling-in device, the rollers 13 and 14 of which were previously placed. As soon as the wood touched the support roller 17 or some earlier, hydraulic cylinders 2O and 21 are turned on, which act on the pivoting frames 16 and 15 with the rollers 13 and 14 (turning the rollers 13 and 14 relative to the axes 19 accelerates the supply of wood to the support roller 17). Since the drives 22 of the rollers-13 and 14 are on {oche, then when a certain pressure is reached, a pulling force arises and the tree will start moving 5) in the longitudinal direction and as the tree trunk is covered with delimbing knives, the branches will be pruned. At the same time, the actuator 8 is switched on to move the beam 9, i.e. two speeds of tree feed are combined.

As soon as the wood leaves the zone of the rollers 13 and 14, it can be dropped to the place where the bag is formed, and the beam 9 itself, equipped with a supporting crossbar 23 at the rear end, performs the role of the receiving tray.

Then the cycle repeats.

The working body of the proposed machine can also be a swivel gripping-cutting device that performs the operations of gripping the tree, cutting it, knocking and cutting the branches. The positioning of the pulling mechanism with the proposed arrangement of the traction rollers (or tracks) on the beam 9 and their rotational drive allows more quickly align the tree axis with the beam axis, which shortens the cycle time.

The rise of the koml of the tree after it has been grabbed by the working body (in the case of the feller-delimbing machine, after cutting and hauling) is combined with loading it into the pulling device without performing any other additional operations (for example, longitudinal movement), which also shortens the cycle time . A reduction in cycle time is also achieved due to the fact that the rotation of the rollers (or the rotation of the frames) to ensure subsequent pressing allows the tree to be pressed to the upper roller more quickly.

The proposed machine allows the combination of two speeds of the longitudinal feed — a pulling device and a longitudinal movement of: a beam, which also shortens the cycle time

. Finally, the layout of the machine nodes allows simultaneous dragging to rotate it horizontally to form packs of treated trees, since the lateral arrangement of the rollers-bu can perceive the lateral loads arising from this.

The lower location of the beam (step c) with respect to the dragging mechanism eliminates the use of a special tray, since the beam itself performs the role of the tray with the cross member installed.

Claims (3)

1. The logging machine includes a base with a vertical rotating beam mounted on it with a working body having turning gripping elements and a pulling mechanism characterized in that, in order to increase productivity, the beam is stepped, and the working body is placed at its upper step with dragging mechanism. 2. Forestry machine lo l. characterized in that the beam is made telescopic. Sources of information taken into account in the examination 1. USSR author's certificate number 548420, cl. B 27 Q 1 / GS, 1977. 2. USSR author's certificate number 491471, cl. In 27 L 1 / OO, 1976. 3. USSR author's certificate number 561663, cl. In 27 U 1/00, 1977 (prototype).