SU917791A1 - Gripping-cutting device - Google Patents

Description

(5) CAPTURE-CUTTING DEVICE

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The invention relates to gripping-cutting devices for forest machines and can be used by /; used in the forest industry.

A gripping-cutting device is known, which includes a stand with a cutting organ and maxillary grips p 1.

It is also known grasping-cutting device of a logging machine, including a stand with a cutting body and jaw seizures spaced in height.

The disadvantages of the known methods are damage to the maxillary grips of the wood of the trunk and the poor quality of the grasp of the trunk of the maxillary grips.

The aim of the invention is to improve the quality of wood capture.

For this, in the proposed device, the base lever of the jaw grip is made in the form of pivotally interconnected swivel

In the horizontal plane of the brackets and has a cap that is hinged on the last bracket, and an elastic cylinder, one end of which is fixed on the grip, and the other is placed in the cap.

FIG. 1 shows a snatching device; in fig. 2 section A-A in FIG. 1 (cross-section of the movable lever of the maxillary grip); in fig. 3 shows a section BB in FIG.

Capture-cutting device of the logging machine contains a rack with a cutting body 2. On

IS horizontal platform fixed stops 3 pivotally mounted movable lever jaw grip. The movable lever of the maxillary grip is made turning in the horizontal

20 planes of t-brackets hinged between each other, which are connected to each other with the help of pivot fingers 5. Inside the t-brackets there is an inflatable rubber balloon 6 (see Fig. 3), which is rigidly connected to a metal balloon that is fed through hoses 8 Air for filling the inflatable rubber balloon 6. The metal balloon 7 is mounted on the horizontal platform of the fixed support 3. The last element of the movable jaw gripper is made in the form of a cap 9 whose inner surface serves as an emphasis for the free . of the end of the inflatable rubber balloon 6 On the lateral surface 10 of the horizontal platform of the fixed support 3 and the cap 9 there are brackets 11 in which the fingers 12 are mounted on which the spring 13 is mounted. The spring 13 passes through the holes of the plates 14 mounted on the lateral surface of the brackets k,

Capture-cutting device logging machine works as follows.

The device is brought to the tree. When the metal balloon 7 is filled with air, the inflatable rubber balloon 6 increases in size, but since it is limited on one side by the hinged fingers 5 and on the other; The inner surface and the cap 9 / then, when a certain volume is reached, the brackets begin to rotate relative to each other on the hinge fingers 5, providing a high quality girth of the tree trunk. The position of the movable lever, the jaw jaw, which presses the tree trunk to the horizontal platform of the fixed stops 3i is shown in FIG. 2 by a dashed line. The clamping force is distributed evenly on each bracket and its limiting value is limited by the actuation of the pressure limiting valve. After cutting the tree

organ 2 is cutting it. After that, the air is vented from the chamber of the inflatable air cylinder b, and the springs 13 returns the movable lever of the jaw grip.

to its original position, shown in Figure 2 by the main line.

The feasibility of the present invention is to reduce damage to the wood and

improving the quality of circumference of the trunk jaws.

Claims (2)

1. US Patent No. 3688824, cl. 144-309,1972. 2. USSR author's certificate number 44713, class, A 01 G 23/06; 197 (prototype), I, I I ,. m7ff m // m ///// ff //// M L Lh Phii