RU2469884C2 - Logging vehicle process equipment - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: logging vehicle process equipment includes a drive frame, drive frame turning hydraulic drive, loading shield with covering and removable "П"-shaped steel strip. Drive frame is hinged to the vehicle frame with possibility of being turned in longitudinal vertical plane. Loading shield is equipped with side, front and rear edges forming a closed loop along the perimetre. Steel strip is equipped in its middle part with a cutting edge and installed in a pivoted manner on loading shied in its lower part with possibility of being turned in longitudinal vertical plane by means of hydraulic drive. Additional boards are mounted on the covering of loading shield along its front and side edges.

EFFECT: enlarging functional capabilities of vehicle; reducing the cost of logging.

3 cl, 4 dwg

Description

The present invention relates to the field of forestry engineering, namely to the technological equipment of skidders used to perform logging operations.

Known technological equipment of a skidder tractor, adopted for the analogue, containing a drive frame pivotally mounted on the tractor frame with the possibility of rotation in a longitudinally vertical plane, a hydraulic drive for turning the drive frame and a loading board with a deck [1].

The disadvantages of the known equipment are its small functionality: it only loads the sawn trees onto the tractor to move them to the loading dock. At the same time, to increase the tractor's cross-cutting ability, preliminary drawing of the drawing is required by harvesting felling, stones, other concentrated obstacles, as well as leveling the supporting surface of the movement by cutting off the protrusions on the ground and filling up the troughs. In addition, clearing of loading areas, earthing up of whips and leveling of their knots on loading platforms are required. For such work, bulldozer equipment is required. The involvement of other tractors, for example industrial ones, equipped with bulldozers, leads in some cases (especially with small stocks of wood in the cutting area) to increase the cost of harvesting wood. The installation of bulldozers directly on skidders negatively affects their payload and leads to a decrease in route loads.

Known technological equipment of the skidder tractor, adopted for the prototype, containing a drive frame pivotally mounted on the tractor frame with the possibility of rotation in a longitudinally vertical plane, a hydraulic drive for turning the drive frame and a loading shield with a deck, provided with lateral, front and rear edges forming around the perimeter of the shield closed loop [2]. Such reinforcement, increasing the strength of the lower part of the shield, ensures the production of bulldozer operations with a discarded shield during the reverse of the tractor.

A disadvantage of the known equipment is the inability to move large masses of soil over considerable distances when bulldozing with a shield, since the cross section of the trailing edge has a curved profile, which makes it difficult to cut the trailing edge into the ground, and the soil that accumulates on the shield deck is shifted to the side edges of the shield and is lost when driving a tractor. Therefore, to improve the quality of clearing dragging and loading platforms, repeated repetition of soil bulldozing is required, which increases the time spent on preparatory operations and reduces the productivity of tractors in logging operations in general.

An object of the invention is to expand the functionality of the tractor, reducing the cost of harvesting wood.

The specified technical problem is solved by the fact that the technological equipment of the skidder is equipped with a removable U-shaped steel strip equipped with a cutting edge in its middle part and mounted pivotally on the loading shield in its lower part with the possibility of rotation in a longitudinally vertical plane using a hydraulic actuator, and additional boards are mounted on the shield flooring along its front and side edges. The hydraulically controlled U-shaped steel strip, additional sides and the loading board deck create together a loading bucket, which allows for a large amount of soil to be collected in the tractor when the tractor is back with the shield off, to hold it securely on the shield mounted on the tractor frame in the transport position, during tractor maneuvers (movement tractor forward or reverse, bends) and unload it in a tipper way. To increase the efficiency of soil set, the cutting edge of the U-shaped steel strip can be additionally equipped with loosening teeth.

The invention is illustrated by drawings, where in Fig.1 shows the proposed technological equipment with the installation of additional sides and a U-shaped steel strip during the cargo operation of the tractor; figure 2 shows the proposed technological equipment when collecting soil in reverse tractor; figure 3 shows the proposed technological equipment for dumping soil; figure 4 is a view of figure 2.

Technological equipment includes a drive frame 1, pivotally mounted on the tractor frame 2 with the possibility of rotation in the longitudinal vertical plane, a hydraulic actuator 3 for turning the drive frame 1, a loading shield 4 with a deck 5, a U-shaped steel strip 6, the middle part of which is equipped with a cutting edge 7 and loosening teeth 8, mounted on the loading shield 4 in its lower part by means of a hinge 9, a hydraulic actuator for turning a U-shaped steel strip 6 in a longitudinally vertical plane in the form of two telescopic mounted Sgiach hydraulic cylinders 10 and 11, additional ledges 12, 13 and 14 are fixedly mounted on the floor 5 of the loading board 4 along its front and side edges.

The proposed technological equipment of the skidder works as follows.

When working on skidding of sawn trees from a cutting area to a loading platform, a loading board 4 is installed on the tractor.

If it is necessary to move large masses of soil in the process of preparing the drains and loading platforms, a U-shaped steel strip 6 is installed on the shield 4 in its lower part using the hinge 9, the middle part of which is equipped with a cutting edge 7 and loosening teeth 8, and the hydraulic cylinders 10 and 11 are connected hydraulic rotation of the strip 6. On the deck 5 of the shield 4 along the front and side edges still fixed additional borders 12, 13 and 14.

The movement of large masses of soil is carried out cyclically, performing sequentially the following operations: soil collection, cargo movement, dumping soil unloading, idling.

When soil is set by turning the drive frame 1, lower the shield 4, by activating the hydraulic cylinders 10 and 11 (extending their rods), turn the U-shaped strip 6 all the way into the soil and by backing up the tractor, the soil is buried in the volume between the deck 5 and the additional sides 12, 13 and 14. After gaining sufficient soil mass by actuating the hydraulic cylinders 10 and 11 (retracting the rods), set the U-shaped strip 6 to the position in which the plane of its middle part is perpendicular to the deck 5, and by turning the drive frame 1 raise the shield 4, laying e on the tractor.

Soil held in the volume between the deck 5, the additional sides 12, 13, 14 and the middle part of the U-shaped strip 6, is transported by a tractor making a freight move to the required distance.

For dumping the soil by actuating the hydraulic cylinders 10 and 11 (extending the rods to their extreme position), turn the U-shaped strip 6 and, if necessary, by turning the drive frame 1, raise the shield 4 above the frame 2 of the tractor. According to the formed inclined surfaces, the soil located on the shield floor is unloaded under the influence of gravity.

After unloading, the tractor idles to the site of soil collection and the cycle of soil movement is repeated.

The complete set of technological equipment with a removable hydraulically controlled U-shaped strip with a cutting edge and additional sides mounted on the shield deck allows expanding the tractor's functionality: use it to move large masses of soil over considerable distances when preparing dragging and loading platforms. In a number of cases, this eliminates the need to deliver special expensive equipment for excavation to the cutting area and reduces the cost of harvesting wood.

Information sources

1. Skidding tractor TDT-55. Manual. Petrozavodsk: Karelia, 1975.

2. A.S. USSR No. 694144, IPC A01G 23/08, 1979.

Claims (3)

1. Technological equipment of a skidder tractor, comprising a drive frame pivotally mounted on the tractor frame with the possibility of rotation in the longitudinal-vertical plane, a hydraulic drive for turning the drive frame and a loading shield with a deck, equipped with lateral, front and rear edges, forming a closed loop around the perimeter of the shield, characterized in that it is equipped with a removable U-shaped steel strip, equipped in its middle part with a cutting edge and pivotally mounted on the loading shield in its lower part with the possibility of For turning in the longitudinal-vertical plane by means of a hydraulic actuator, and additional boards are mounted on the deck of the loading board along its front and side edges. 2. Technological equipment according to claim 1, characterized in that the cutting edge of the U-shaped steel strip is provided with ripping teeth. 3. Technological equipment according to claim 1, characterized in that the hydraulic actuator of the U-shaped steel strip is made in the form of two telescopic cylinders mounted on-board.

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