SU1123588A1 - Arrangement for pulling and splitting stumps - Google Patents

Abstract

1. DEVICE FOR WRINKLING AND CUTTING OF KNOTS, containing an arrow, at the end of which the jaw is hinged with teeth for grabbing a mon, a cutting knife, made with a tip bent in the direction of the teeth, and jaws of rotation of the jaw and a cutting knife, different themes that, in order to increase productivity and reduce effort when cutting a mon, it is equipped with a pruning knife, which is mounted on the inner surface of the jaw above the teeth, and the shape of the pruning blade corresponds to the shape of the blades and a cutting knife. 2. A device according to claim 1, characterized in that spring-loaded levers with a toothed working surface are hinged on the cutting knife on either side of it. (L 1C 00 el oo 00

Description

The invention relates to mechanisms for harvesting wood and can be used in the timber, woodworking and fuel industries.

A device for cleaving and cutting stumps is known, comprising a frame with an annular knife, a grip, splitting wedges for stumps and mounted on a frame a drive for moving an annular knife and wedges, made in the form of a power cylinder, to the outer brush of which an annular knife is attached, and to the inner radially wedges located 1.

The disadvantages of this device are the nugs the complexity of its design and low productivity.

A device for cleaving and cutting stumps is known, which contains an arrow, at the end of which a jaw with hinged teeth is fixed to grip stumps, a cutting knife, made with a pointed tip bent toward the teeth, power cylinders for turning the jaw and cutting knife 2.

The disadvantages of the known device are its low productivity and great effort for cutting stumps that occur when it is cut with a cutting knife.

The purpose of the invention is to increase productivity and reduce effort during cutting of mon.

The goal is achieved by the device for clearing and cutting of stumps, which contains an arrow, at the end of which a jaw with teeth for gripping is pivotally fixed, a cutting knife, made with a pointed tip bent to the teeth, power cylinders for turning the jaw and cutting knife It is equipped with an undercutting knife, which is mounted on the inner surface of the jaw above the teeth, and the shape of the blade of the undercutting knife corresponds to the shape of a l, ezvi cutting knife. In addition, spring-loaded levers with a toothed working surface are hinged on the cutting knife on either side of it.

FIG. 1 shows a device for stubbing and cutting stumps; in fig. 2 is a view A of FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 is a view of B in FIG. one.

The device for clearing and cutting the stumps contains an arrow 1, at the end of which is jaws 2 with teeth 3 for picking a mon and cutting knife 4, driven by force cylinder 5 of jaw 2 and power cylinder 6 of cutting knife 4 moved between teeth 3 jaws 2.

On the inner surface of the jaw 2 above the teeth mi 3 mounted undercutting knife

7, the shape of the blade of the undercutting knife 7 corresponds to the shape of the blade of the knife 4. The undercutting knife 7 is made removable and attached to the jaw 2 by retainers 8. The blade of the cutting 4 and undercutting knives 7 in the longitudinal section have the shape of straight lines, which ensures the closing of these knives. The cutting knife 4 is made with a tip 9 bent in the direction of the teeth 3, having a pointed edge 10. The levers 11, spring-loaded with springs 12 and having a toothed working surface 13, are hinged on the cutting knife 4 on either side of it.

The device works as follows.

The arrow 1 is installed above the stump, orienting it so that it is more convenient to grip it with the teeth 3. The power cylinder 5 is actuated by the jaw drive 2 and the tooth 3 is buried under the stump, while the trimming knife 7 located above the teeth 3 is inserted into the wood mon Due to this, when picking a mon with the teeth 3 and pressing it against the inner surface of the jaw 2, the stump (or the roots of the mon) is partially cut and reliably fixed relative to the jaw 2 and held there during further processing. The power cylinder 6 is then put into operation, which drives the cutting knife 4. When the cutting knife 4 is pulled over the stump, the latter is simultaneously cut by the closing cutting knife 4 and the cutting knife 7. The equipment of the cutting knife 4 is tipped 9 with the tip 9, the stump is better interlocks with the device. Spring-loaded levers 11, with their toothed working surface 13, hold the pieces of mon when the cutting knife 4 and the cutting knife 7 are closed in the device, whereby the pieces can be simultaneously loaded into the vehicle body.

Thus, both the stumps in the ground and the uprooted stumps are cut into the required number of pieces and the roots are separated. After cutting, pieces of stumps are loaded into the vehicle body (not shown) and exported to the storage location.

The proposed device allows for 15-20 / o to reduce the effort to cut a mon, to reduce the cycle of its cutting, to ensure reliable retention in the process of its capture and cutting, eliminating its loss from the device, to reduce the energy intensity of the workpiece of the pneumatic wood, and to increase the reliability of the cutting knife , excluding its damage when cutting large stumps. All this allows to improve the performance of the device at 430/0.

In id

FIG. 2

Claims (2)

1. DEVICE FOR RIGGING AND CUTTING OF STUMES, containing an arrow, at the end of which a jaw with teeth is attached for grabbing a stump, a cutting knife made with a tip curved towards the teeth with a pointed edge, and power cylinders for turning the jaw and cutting knife, characterized in that, in order to increase productivity and reduce effort when cutting a stump, it is equipped with a cutting knife that is mounted on the inner surface of the jaw above the teeth, and the shape of the blade of the cutting knife corresponds to the shape of the blade present knife. 2. The device according to π. 1, characterized in that on the cutting knife on both sides of it spring-loaded levers with a gear working surface are articulated. Fig-1