SU1428291A1 - Machine for pulling stumps - Google Patents

Abstract

The invention (applies to machines for hoarfrost and can be used by forestry machines. The purpose of the invention is to improve performance. Machine d. 1 of stump roilers includes self-propelled chassis I. on which boom 2 and winch 3 with two drums are mounted 4 and 5. At the end of the rig, ly 2 is mounted a support frame 6, on which nodshmpen zachvat with a drive is mounted on MONI1 of the cargo cable 7. The cable 11 is connected to the cargo cable and is connected to the drum 5 of the winch 3. After the support frame is installed 6 over the stump is lowered on a coarse rope 7 zah WAT, jaws K (jropoio by means of a drive partially submerged mode pel. FIpi tension of the cargo cable 7 jaws of the grip reliable1 About fixing i: a niie. The drum 4 of the winch 3 stops, then tension the cable 11. The tension in the cargo cable 7 increases , and pen1) pzv.chekaets from zem.ch. 2 ill.

Description

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The invention relates to machines for uprooting stumps and can be used in the forest industry.

The purpose of the invention is to increase productivity and reduce traction force of the winch.

FIG. 1 shows the machine in working position, general view (transport position is indicated with a dotted line); in fig. 2 is a view A of FIG. one.

The machine for rooting stumps contains a self-propelled chassis 1, on which the boom 2 is hinged and a winch 3 is rigidly mounted, equipped with two drums 4 and 5. At the free end of the boom 2 is a hinged support frame 6, onto which, using a cargo cable 7 connected to the drum 4 is suspended from the grip 8 with the drive 9. The cargo cable 7 is connected to the drum 4 of the winch 3 through the block 10 pivotally mounted on the boom 2.

The free end of the cable 11 of the drum 5 of the winch 3 is fixed on a spring-loaded guide 12, which freely covers the cargo cable 7. The guide 12 is rigidly connected to the springs 13, which are rigidly fixed on the frame 6. The drum 4 is provided with a locking device for the cargo cable 7, made in the form ratchet (not shown).

The machine works as follows.

The support frame 6 is led to the stump and, with the help of the load rope cable 7, the grip 8 is lowered with the jaw open. First, with the aid of the actuator 9, the jaws of the gripper 8 are partially buried under the stump. By turning on the drum 4 of the winch 3, the cargo cable 7 is pulled up onto the ascent, finally the jaws under the root system are finally sunk. After tensioning the cargo cable, drum 4 is fixed with

using a locking device. Then the second drum 5 is turned on, the rope of which, acting through the guide 12 on the cargo cable 7, pulls it away and the stump

removed from the ground. Then the cycle is repeated.

Thus, the proposed mask allows the stump to be removed from the soil by using an additional cable 11,

attached to the middle of the rope 5, while receiving a gain in power, proportional to the ratio of half the length of the cargo cable 7 from mon to the frame unit to the distance of movement of the cable 11. In addition, when using the proposed machine

it requires a large hollowing of the jaws of the gripping device under the stump, and only a reliable clamp mon is needed. Due to this, as well as the reduction of effort on the winch when extracting mon, the productivity and reliability of the machine for

Rooting stumps in the work.

Claims (1)

Invention Formula Machine / t stump rooting, including a self-propelled chassis with a winch and boom mounted on it, at the end of which a support frame with a block is pivotally mounted, a gripper, a cargo cable, an envelope of the supporting frame and connected to the gripper, so that performance by reducing the winch pull force, the winch is equipped with an additional drum and cable, the free end of which is connected to a guide, movably mounted on the cargo cable and connected by springs to the supporting frame, and the drum load Vågå cable is provided with a locking device.