RU72934U1 - INTEGRATED UNIT - Google Patents

Abstract

Scope: water transport of the wood. Appointment: an alloy of timber along the rivers with shallow depths. Essence: a raft unit contains separate round timber and timber packages, interconnected by ties and vertical ties, moreover, round timber is laid between the packages in an even layer with a thickness equal to the height of the packages and parallel to the packages, and the upper ties are made rigid across the width of the raft unit lower flexible ties, covering packages and individual timber from below and from the sides, are connected to the ends of the upper ties, and vertical ties connecting flexible and rigid ties, separate timber is divided into packs of equal volume. Novelty: timber of sufficient buoyancy are joined together by ties and ties, and timber of limited buoyancy stacked between the bonds and parallel to them, which are tied with flexible ties attached to rigid ties. The volume of timber of limited buoyancy is determined by the formula ,

where V ₀ , V _d - the volume of wood, respectively, limited and sufficient buoyancy;

ρ _in , ρ ₀ , ρ _d - the density, respectively, of water, wood of limited and sufficient buoyancy.

1 s.p. f-ly, 1 ill.

Description

The utility model relates to the forest industry and can be used for the alloying of timber along rivers with shallow depths.

Known flat raft unit containing rows of logs interconnected by rigid bonds, and the logs in each row are laid perpendicular to the previous row (Handbook on timber rafting. M.-L., Goslesbumizdat, 1952, S. 223-224). This raft unit is complex in design and requires a large consumption of fixing material.

A raft unit is also known, containing rows of round timber located perpendicular to each other, and bundles of timber located perpendicular to the inner rows and interconnected by strands with outer rows and vertical ties (RF Patent No. 2043225, IPC VV 35/62). This raft unit is characterized by high laboriousness in manufacturing it and when unloading round timber after removing strapping at the points of float.

Also known is a raft unit containing round timber and timber packages interconnected by rigid and flexible connections and vertical ties (RF Patent No. 2177436, IPC BV 35/62). This design is taken as a prototype. The disadvantage of the prototype - round timber with a limited margin of buoyancy during transportation as a result of water absorption lose buoyancy and drown at the points of float when removing strapping.

The problem the utility model aims to solve is to prevent water absorption of round timber of limited buoyancy.

This is achieved by the fact that flexible and rigid bonds, ties are joined together by timber, both separate and in packages of sufficient buoyancy, and timber of limited buoyancy, which are connected between

flexible bonds attached to rigid bonds, while the volume of timber of limited buoyancy does not exceed the value

,

where V _o , V _d - the volume of wood, respectively, limited and sufficient buoyancy;

ρ _in , ρ _about , ρ _d - the density, respectively, of water, wood of limited and sufficient buoyancy.

The listed essential features make it possible to form a raft unit, in which timber with a sufficient buoyancy margin is in the water, and timber with limited buoyancy above the water. This excludes water absorption by the timber of limited buoyancy and their loss from the utop at the unloading points when the raft unit is disbanded.

The utility model is illustrated in the drawing, where Fig. 1 shows a raft unit, side view; figure 2 is the same front view.

The raft unit contains separate round timber 1, which is laid between the packages of 2 round timber in an even layer with a thickness equal to the height of the packages and parallel to the packages. Flexible bindings are imposed on packages 3. Packages and individual round timber are interconnected using rigid 4 and flexible 5 connections. Hard ties are laid on top and across the timber and are made of round timber with a length equal to the width of the raft unit. Through holes 6 are made at a distance of 0.25-0.30 m from each end of these rigid connections. Flexible connections 5 cover packages and individual round timber from below and from the sides, they are equipped at the ends with chain extensions 7 with lever locks 8. The chain extension is passed through the holes 6 of the rigid connection 4 and close with a lever lock 8 for the chain link of the main branch of the flexible connection. Chain settings allow you to adjust the working length of a flexible connection. Flexible and rigid connections are covered and interconnected by ties 9. They can be made in the form of a piece of wire, with telegraph

the twist of which the slack of the lower flexible connection is selected. Ties are installed so that they separate individual round timber into packs of equal volume. Round timber in packages and between them have sufficient buoyancy. On top of them between rigid bonds and parallel to them lay timber 10 with limited buoyancy, for example, hardwood assortments. These timber is tied with flexible ties 11, which are attached to rigid ties.

At the same time, timber of limited buoyancy is stacked in volume

In this case, timber of limited buoyancy is in the air and there is no water absorption by them and loss of their buoyancy.

The formation of the proposed raft unit can be carried out both on shore and on water. When forming on the shore, for example, in the winter period, two lower flexible connections are laid first on parallel to each other on a shovel 5. Using a raft transport unit, a package of 2 round timber of sufficient buoyancy with pre-applied harnesses 3 is placed and laid across flexible connections near one pair of chain links 7. Then, the exact same second package of round timber is brought up and laid on flexible ties parallel to the first and near the second pair of chain extensions. After that, aggregates with a hydraulic manipulator lay separate round timber 1 of sufficient buoyancy on the flexible lower links 5 between the packages. Separate timber is laid in an even layer with a thickness equal to the height of the stacked packages. As individual timber is laid between them, skips 9 are passed, which cover the lower flexible connections 5. Moreover, the scaffolds divide individual timber into bundles of equal volume. Two rigid connections 4 are laid on top and across the packages and individual timber, through which 6 chain links 7 of flexible connections 5 are passed through holes 6, their slack is selected and the lever locks 8 are closed for the links of the main branches of the tips. After that

vertical ties 9 cover the upper rigid ties, connect and twist the ties with telegraph twisting. In this case, the flexible ties are tightened 5. Between the rigid ties across the timber of sufficient buoyancy, timber of limited buoyancy 10 is laid, which is tied with flexible bonds 11 attached to the rigid bonds. During the flood period, raft units float and form rulers, rows and rafts that are towed to consumers.

When forming the proposed raft unit both on the shore and on the water, manipulators can be used. A raft unit allows preserving the buoyancy of deciduous timber and eliminating their loss at unloading points.

Claims (1)

A raft unit containing separate round lumber and lumber bundles interconnected by ties and vertical screeds, with round lumber being laid between the bundles in an even layer with a thickness equal to the height of the bundles and parallel to the bundles, and the upper ties are made rigid in width of the raft unit, while the lower ones flexible ties, covering packages and individual timber from below and from the sides, are connected to the ends of the upper ties, and vertical ties connecting flexible and rigid ties, individual timber terials are divided into bundles of equal volume, characterized in that the timber of sufficient buoyancy are joined together by ties and ties, and timber of limited buoyancy, which are tied by flexible bonds attached to rigid bonds, are stacked between parallel rigid ties and parallel to them, and the volume of timber of limited buoyancy

, where V _o , V _d - the volume of wood, respectively, limited and sufficient buoyancy; ρ _in , ρ _about , ρ _d - the density, respectively, of water, wood of limited and sufficient buoyancy.