FI62805B - TRANSPORT FOER EN FRAMMATNINGSANORDNING FOER FLIS ELLER DYLIKT - Google Patents

Description

ι 62805

Chipper, etc. feeder conveyor

The present invention relates to wood chips. to the conveyor of a feeder having substantially U-shaped chain brackets adhering to each other with their claws.

With the price of oil rising to a multiple of 5 in a few years, domestic fuels have become the subject of increasing attention, research and use. The most important of these are wood and peat. Due to structural reasons, the burning of peat is automatically quite easy.

Instead, the wood must first be treated first in order for the si-10 to be burned automatically, which is generally necessary in practice. In this case, the wood material is usually chopped with various equipment into chips. The chips are fed from a tufted storage tank, usually using screws, belts and cola conveyors. Some conveyors are made of simple-15 ti chain links. The feeding of uniform wood chips with the equipment was generally relatively easy, in practice the wood chips often contain impurities such as twigs, sticks, etc., which cause malfunctions and thus reduce the use of wood fuel.

The object of the present invention is to obviate the above-mentioned drawback and to provide a chip conveyor conveyor which is not sensitive to chip impurities and which, moreover, is simple in construction and consequently also inexpensive in terms of purchase price and operating costs. In a conveyor formed of chain-25 links, this is mainly achieved by fitting a bearing sleeve to the center of the chain link, to which the hooks of the chain link bent outwards approximately perpendicular to the plane of the chain are attached, suitably by welding.

It is already known, for example, from U.S. Pat. No. 2,865.88 '/ conveyor, in which a plurality of rigid U-shaped prongs are attached to a common central body part, which in turn is articulated at its ends to adjacent similar structures, thus providing a conveyor. with an articulated joint always a few claws away. The structure becomes very heavy and stiff and cannot be compared to a flexible, light and cheap chain made of a round bar.

U.S. Pat. No. 3,239,056 discloses a conveyor assembled from U-shaped bar parts in which the portions corresponding to the ends of the U-shaped sockets are first partially bent around the center of the previous loop and the tips of the forks, then laterally outwards parallel to the plane of the loops. When loosened, such a chain can be easily disengaged, and most importantly, little gripping power is achieved with respect to the one being transported, because the chain itself is fairly flat or smooth in surface.

The situation is different in the device according to the invention. It has the ends of the wires, after twisting the middle part of the previous loop, turned outwards from the plane of the ket-15 train, whereby scraping members are provided which are able to break and carry the branches, piles or the like without difficulty, thus preventing discrimination of operation. At the same time, a bearing sleeve 1 kki is arranged at the centers of the chain link before bending and the ends of the jaws are suitably attached to it, e.g. by welding. This increases the strength and service life of the chain while reducing the surface load and wear on the bearing sleeve.

To illustrate the invention, reference is made to the accompanying drawing, in which Figure 1 schematically shows a part of the chain seen from above and Figure 2 the same parts seen from the side.

25 The chain conveyor itself usually moves in a chute on which a sprocket and folding wheels (not shown) are also mounted. The chain links 5 are made of rods 17, on the center of which, before bending, a bearing 16 is arranged as a bearing, to which, in turn, the chain link pins 15 bent approximately perpendicularly outwards 30 against the chain plane of the rods 17 are welded. The distance between the chain and the gutter suitably surrounding it is preferably such that the prongs 15 of the chain do not drag along the walls of the gutter.

It is clear that the invention is not limited to the application example presented above, but that many other forms can be presented within the scope of the following claims.

Claims (2)

3 6 2 80 5 A conveyor for a feed device of wood chips and the like having substantially U-shaped prongs (15; interlocking chain links (5)), characterized in that a bearing sleeve (16) is arranged at the center of the chain link (5). the chain link claws (15) bent approximately outwards perpendicular to the plane are fastened, suitably by welding. Conveyor according to Claim 1, characterized in that the bearing sleeve (16) is approximately the length of a straight part of the chain link base.