SU1214510A1 - Machine for chokerless logging of trees - Google Patents

Description

The invention relates to the mechanization of work in the forest industry and forestry and, in particular, to the logging equipment with a gripping body.

The purpose of the invention is to increase the reliability of the machine.

FIG. 1 shows a schematic of a machine; a general view of FIG. 2 - mechanism of rotation of the gripping body in the initial position “And FIG. 3 - the same, in the loaded position .; in fig. 4 - machine, top view; figure 5 - rotation cylinder and sleeve - gripping body, top view.

The skid-free skidding machine includes a self-propelled chassis 1, an arrow containing, for example, two mutually movable parts, one of which 2 is hinged on the chassis (for example, on the rear half-frame), and the other 3 is hinged to the first. Part 2 of the boom is installed with the possibility of rotation by means of a drive, for example, hydraulic cylinders 4, and part 3 of the boom is rotatable by means of a drive, for example, hydraulic cylinders 5. Hydraulic cylinders 4 and 5 provide raising and lowering of the boom.

The machine also includes a gripping body 6 with a drive of its jaws, for example, a hydraulic cylinder 7, as well as a hydraulic polispast 8 containing hydraulic cylinders, blocks and a haul rope 9 mounted on part 3 of the boom. The gripping body 6 is mounted on the bearing axis 10 with the possibility of rotation in the horizontal plane by drive, for example a hydraulic cylinder 11 or a torque hydraulic motor

The carrier axis 10 is mounted on the boom (on its part 3) with the possibility of rotation around the axis of its rotation, in the bearing 12, and also with the possibility of axial movement relative to the part 3 of the boom. Axis 10 is spring-loaded in the axial direction by elastic elements (for example, plate 13 and cylindrical 14 springs). Axial movement of the bearing axis 10 is limited by element 15 fixed on the boom part 3.

The mouthpiece is also equipped with a clutch, for example, a friction clutch, one of the coupling halves 16 of which is fixedly connected to the carrier axis 10, and the other 17 is mounted on the boom part 3 with the possibility of rotation around its axis

rotation through the hydraulic cylinder 11 rotation of the gripping body 6. For this coupling half 17 can be, for example, fixed on the axis 18,

installed in the bearing 19. In addition, the drawings schematically shows the cradle 20, mounted on the rear half of the chassis.

The machine works as follows.

To a bundle of trees lying on

Zamele, the car in reverse moves up from the butt part, the reference point to open the gripping body 6 in the center of the pack. Next, the gripping organ is installed with the jaws fully opened in the position most convenient for gripping the pack and with the help of the boom (its hydraulic cylinders 4, 5 and parts

2 and 3) the gripping organ d is lowered onto the stack of trees.

By means of the hydraulic cylinder 7, the gripping body 6 is used to clamp the pack, after which this body 6 with the formed bundle of trees is raised by an arrow into the transport position (see Fig. 1). Under the action of the force of the body of the pack, an axial movement takes place.

carrier axis 10 down, resulting in a gap a between the two coupling halves 16 and 17, which allows the gripping body 6 together with the pack to freely rotate on its carrier axis 10. After that, the machine starts skidding the stack.

A bundle of trees, clamped in the gripping organ b, is brought to the loading platform and unloaded by opening the jaws of the gripping organ by means of a hydraulic cylinder 7.

Under the action of the elastic force of the flexible element (springs 13

and 14) there is an axial movement of the carrier axis 10 upwards and coupling between them, two coupling halves 16 and 17. After unloading the jaw of the gripping body 6, they are lowered to the middle position and the cable 9 of the hydraulic polispast 8 gripping body 6 is pulled and pressed to the back of the back frame 20 after which the car is ready for a new flight.

At the same time, in the process of pointing the gripping organ 6 with its jaws open on the pack, the possibility of forced rotation is used.

31214510

gripping body 6 in horizontal position only when coupled between the plane around carrier axis 10 with coupling half 16 and 17, i.e. using hydraulic cylinder 11. Such an airborne unloaded gripping body exists and can be pea-machines.

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FIG. five

Editor M.Nedoluzhenko

Compiled by T. Tereshkina

Tehred O. Vashchishin Proofreader M. Samborska

838/26

Circulation 648 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch PPP Patent, Uzhgorod, st. Project, 4

Claims (1)

A MACHINE FOR TEXASLESS-FREE TRACKING OF TREES, comprising a self-propelled chassis, on the frame of which a boom is mounted with the possibility of rotation in the longitudinal vertical plane, at the end of which a gripping body is suspended on the carrier axis with the possibility of rotation in the horizontal plane, characterized in that, in order to increase reliability, it is equipped with a coupling, and the specified bearing axis is mounted on the boom with the possibility of movement in the axial direction and is spring-loaded in this direction, moreover, one coupling half of the coupling is rigidly connected to axle, and the other rotatably fastened on the boom and pivotally connected to the rotation drive of the gripping body. SUn12112510>