RU2484987C2 - Transport facility - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Proposed vehicle comprises wheeled two-axle low lifting capacity chassis, frame to support cabin, driven winch with rope, and loading board fluid-driven in vertical lengthwise plane. Said loading board is equipped with flat deck and block with reeved pulley rope. Loading board is furnished with bolster arranged at board flat deck and provided with support and guide surfaces. Support surfaces are inclined in transverse direction. Lines of intersection of support surfaces is located in vertical plane crossing board lengthwise mirror at height h from board surface. Bolster guide surfaces are located on board section extending from deck rear edge to bolster support surfaces and inclined to deck surface. Lines of intersection of guide surfaces is located in aforesaid vertical plane.

EFFECT: higher efficiency.

5 dwg

Description

The invention relates to tractor construction, in particular to small-sized vehicles, and can be used in the forest industry for the transportation of long forest loads.

It is known a vehicle adopted for an analogue containing a small-sized chassis with a frame, a cab located in the front of the frame, a winch mounted in the middle of the frame, a conic and a loading panel installed in the rear of the frame [1].

A disadvantage of the known vehicle is the inability to load trees in difficult soil and climatic conditions, since when dragging trees to a vehicle, it is held in place only by coupling the undercarriage with the soil.

It is known a vehicle adopted as a prototype, containing a biaxial low-load chassis, on the frame of which a cab, a winch with a drive and a rope, and a hydraulically controlled loading shield rotatable in a vertical longitudinal plane, equipped with a flat deck and a block into which the rope is stocked, are sequentially placed one after another winches [2].

Known vehicle designed for loading and moving trees. When loading trees onto a vehicle, its loading shield rests on the ground, which makes it possible to overcome the considerable resistance created by the trees being pulled. However, during a cargo run, leaning the end of the pack of skid trees on the trailing edge of the loading shield floor leads to unloading the wheels of the front axle (car sprung), which is one of the reasons for the poor controllability of the vehicle and reduces productivity, since to eliminate the phenomenon of spumping, the traveling load is reduced.

The technical result of the claimed invention is to increase productivity in the transport of long forest loads.

In the proposed vehicle, the specified technical result is achieved by adapting the loading panel to the transport of long forest loads without restrictions on controllability.

It is proposed to equip the loading board with a conic placed on the shield flooring in its middle part and having supporting and guiding surfaces. The supporting surfaces are made oblique in the transverse direction, the line of their intersection lying in a vertical plane passing through the longitudinal axis of symmetry of the shield, at a height from the deck, determined from the condition that there is no contact of the trailing edge of the deck with the pack of wood being trawled during a cargo vehicle. The guide surfaces are located on the shield section from the trailing edge of the flooring to the supporting surfaces of the conic and are inclined to the plane of the flooring, the line of intersection of the guide surfaces also lying in the specified vertical plane.

The invention is illustrated by drawings, where in Fig.1 shows a side view of a vehicle with the emphasis of the loading shield in the supporting surface; figure 2 - loading shield, General view; figure 3 is a section aa in figure 2; figure 4 is a section bB in figure 2; figure 5 is a diagram of the movement of the vehicle during a cargo run along the cutting area.

The vehicle contains a biaxial wheeled chassis 1 of light capacity, on the skeleton 2 of which a cab 3 is installed successively, a winch 4 with a rope 5, a hydraulically controlled loading shield 6 with a deck 7 rotatable in a vertical longitudinal plane, mounted on a support 6 of the shield 6 on a support 8 block 9, in which the rope 5 is stocked. On the flooring 7 in the middle part of the shield 6 there is a conic 10 equipped with supporting 11 and guiding 12 surfaces.

The supporting surfaces 11 of the conic 10 are made oblique in the transverse direction, and the line of their intersection lies in a vertical plane passing through the longitudinal axis of symmetry of the shield 6, at a height h from the deck 7, determined from the condition that the trailing edge of the deck 7 is not in contact with the pack of trellised trees when loaded the course of the vehicle along the reference plane of movement with concentrated obstacles of height H according to the formula

,

,

where m is the length of the shield deck;

L is the longitudinal base of the vehicle;

α is the angle of inclination of the axis of the skid wood package to the reference plane of movement of the machine.

The guide surfaces 12 of the conic 10 are inclined to the plane of the deck 7 on the shield 6 from the trailing edge of the deck 7 to the supporting surfaces 11 of the conic 10. The intersection line of the guide surfaces 12 also lies in the specified vertical plane passing through the longitudinal axis of symmetry of the shield.

The vehicle operates as follows.

When loading a package of trees, the loading shield 6 is installed hydraulically in a position in which the trailing edge of the deck 7 abuts against the ground. The rope 5 of the winch 4, stored in block 9, is attached to the immersed package of trees. By turning on the drive of the winch 4, the rope 5 is winded onto the drum of the winch 4. The tree pack attached to the rope 5 is pulled to the vehicle, and the end of the packet starts moving along the loading shield 6 and its conic 10. The central location of block 9 on the support 8 and the end of the tree packet glides along the guiding surfaces 12 of the conic 10, ensure that by the time the end of the packet reaches the supporting surfaces 11 of the conic 10, the longitudinal axis of symmetry of the packet is located in a vertical plane passing through the longitudinal axis the symmetry of the shield 6. By actuating the hydraulic drive, the loading shield 6 is installed on the frame 2 of the chassis 1 in the transport position. The winch drive 4 is turned off and its drum is braked. This ensures the retention of the end of the tree pack on the cone 10 of the shield 6 during the cargo movement of the vehicle, and the location of the longitudinal axis of symmetry of the wood packet and shield 6 in one vertical plane leads to a uniform load on the sides of the vehicle during its rectilinear movement. The supporting surfaces 11, made oblique in the transverse direction, facilitate the retention of the end of the tree pack on the cone 10 of the shield 6 during sharp turns of the vehicle or moving it along an oblique.

, где m - длина настила щита; α - угол наклона оси пакета трелюемых деревьев к опорной плоскости движения машины, то при грузовом ходе транспортного средства отсутствует контакт задней кромки настила 7 с пакетом трелюемых деревьев даже при съезде задних колес с препятствия высотой Н. Опирание конца пакета трелюемых деревьев на коник 10, размещенный в средней части щита 6, способствует тому, что опорные реакции грунта на передние колеса транспортного средства, по сравнению со случаем опирания на заднюю кромку настила 7, возрастают более чем в два раза, что позволяет улучшить управляемость при грузовом ходе транспортного средства.Since the intersection line of the supporting surfaces 11 is located above the deck 7 at a height

where m is the length of the shield deck; α is the angle of inclination of the axis of the pack of trawled trees to the reference plane of movement of the machine, then during the vehicle’s cargo path there is no contact of the trailing edge of the flooring 7 with the pack of trawled trees even when the rear wheels exit with an obstacle of height H. The end of the pack of trawled trees rests on a conic 10 placed in the middle part of the shield 6, contributes to the fact that the support reaction of the soil to the front wheels of the vehicle, compared with the case of leaning on the trailing edge of the deck 7, is more than doubled, which improves be at the load during the handling of the vehicle.

The use of the invention eliminates the bulging of the vehicle during cargo operation, improves handling and provides increased productivity during skidding.

Information sources

1. Patent No. 74364 Russian Federation for a utility model, IPC B62D 55/04. Small-sized tractor for work in the forest / Terinov N.N., Galakteonov V.N., Galakteonov A.V., Terin A.A. applicant and patentee Botanical Garden of the Ural Branch of the Russian Academy of Sciences (status of state institution) (RU). - No. 2008108640/22; declared 03/05/2008; publ. 06/27/2008. Bull. Number 18.

2. Sitnikov V.R., Zhikharev V.L., Voinash A.S. Small-sized block-modular machines // Tractors and agricultural machines. - 1995. - No. 6. - S.18-21.

Claims (1)

A vehicle containing a wheeled biaxial chassis of light duty, on the frame of which a cab, a winch with a drive and a rope, and a hydraulically-controlled rotary loading axle in a vertical longitudinal plane are provided, equipped with a flat deck and a block into which the winch rope is stocked, characterized in that the loading board is equipped with a conic placed on the shield flooring in its middle part and having supporting and guiding surfaces, while the supporting surfaces are inclined in the butt river direction, and the line of their intersection lies in a vertical plane passing through the longitudinal axis of symmetry of the shield, at a height h from the flooring of the shield, determined by the formula

,
where m is the length of the shield deck;
L is the longitudinal base of the vehicle;
α is the angle of inclination of the axis of the skid wood package to the reference plane of movement of the machine;
H is the height of the concentrated obstacles in the reference plane of movement; and the guiding surfaces of the conic are located on the shield section from the trailing edge of the deck to the supporting surfaces of the conic and are made inclined to the plane of the deck, the line of intersection of the guiding surfaces also lying in the specified vertical plane.

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