WO1992011415A1

WO1992011415A1 - Road-building machine

Info

Publication number: WO1992011415A1
Application number: PCT/CA1990/000451
Authority: WO
Inventors: Jean Filion
Original assignee: Jean Filion
Priority date: 1990-12-24
Filing date: 1990-12-24
Publication date: 1992-07-09

Abstract

A road-building machine intended particularly for building gravel roads. The raw material to be crushed is collected and windrowed in the middle of the road. The machine moves along the road and picks up the windrowed material firstly by means of a worm or endless screw (13) that feeds the raw material to a first rotor (14) which comprises hammers and breaks the larger stones by tilting upwards against upper crossbars (16), then feeds the material to a second rotor (14) which crushes the medium-sized stones by creating friction between them and vertical bars (17, 20). To prevent the material being crushed from building up between the two rotors, these have to be located very close together so that their hammers cross one another, which means that the two identical rotors must be synchronized.

Description

ROAD MACHINE

My invention is related to the construction as well as the repair of a method of finishing the surface of gravel roads.

This method consists of using raw material from the construction of the road, for a new road, or material from the surrounding areas or ditches along the road, for a road to be rehabilitated.

Using a grader the raw material, containing stones of different sizes, is brought to the center of the road to form a swath, it is at this time that the machine for making roads "refector-crusher" straddles this swath and with its two twinned and synchronized rotors snaps the swath, inside it, and breaks, by tumbling against transverse bars, the large stones, crushes them against vertical bars in a material which immediately falls back on the spot, suitable for finishing the surface of gravel roads.

In Canada, a preliminary search for patents issued in the class: 94 - 29, 45 and 48 (road building machine) and class 241 - 58, 65, 68 and 72 (impact breaker - rock crusher) has been done, and nothing semilarian was found.

As for the United States in class 94 - 39, 40 and 44 (1934 - 1972) 404 - 72, 75, 90 and 91 and 241 - 101.2, 185 and 189

The following patents have been noted:

793,824 906,467 2,211,263 2,368,331 3,610,544 However, none of these patents indicate that these machines have a similarity and do not offer the same advantages as the machine presented here as my invention.

The object of this invention is to shape, by means of a road-making machine, a gravel road capable of supporting the passage of trucks with very heavy loads, at increased speed, as well as with any the necessary security preventing skidding.

Another object of this invention is to make a surface suitable for motor vehicles on gravel roads, at a lower cost, at a higher quality than the conventional methods currently used.

To help understand the operation of this machine, here is the description accompanied by some drawings. figure 1: Perspective of the "refector-crusher" machine Figure 2:: A side view in "section" of the principle of tumble-breaking Figure 3:: a front view showing the crushing components

Referring to these figures, the number 10 refers to the unit itself, including the motorization of the vehicle, as well as the cockpit.

The heart of the machine is the crushing part 11. This part includes a loading pallet 12 which scarifies the surface of the road 19, forces the material towards a feed spin 13 which in turn pushes the material upwards, that is to say towards the two rotors 14 provided with hammers 15. These hammers are located in a spiral and in an odd number on the rotor so that the whole is balanced statically and dynamically.

The crushing part also includes a set of transverse bars 16 so that the large stones thrown by the hammers 15 can fracture into smaller pieces. The material continuing its ascent towards the second rotor 14 which, with its hammers ^ identical to the first rotor, compresses and rolls the small stones against vertical bars 17 in the shape of "C" to reduce them to a crushed particle size. longed for.

This particular design eliminates the sharp edges of the stones and prevents "arrowheads" so damaging to the tires. The profile of the upper part of the vertical bars 17 allows easy entry of the material, even when wet and with a high clay content, into the grinding part.

The spaces between the vertical bars 17 also allow the passage of the crushed material while limiting the particle size.

The two rotors 14 rotate in the same direction, and they must be close to each other to prevent an accumulation of fine material between the two. To prevent the hammers 15 from hitting each other, the rotors 14 must be synchronized.

The platform 21 protects the spin 13 and the hammers 15 from abutting against large stones, most of which are buried under the road surface, and which could break the locks of these hammers.

The lower part 20 of the vertical bars is easily removed to be replaced because wear is considerable at this point.

The whole operation of this machine consists of:

With a conventional grader, you must first form a swath of good grain size, that is to say with a balanced percentage of stones and fines.

Then comes the "refector-crusher" machine which swallows this swath and lets this crushed material fall back.

Secondly, a grader spreads the crushed material over the width of the road while cutting the road surface for good drainage of rainwater. -. -

Lastly, a compacting roller passes to stabilize this layer of crushed and to conserve the dust to obtain a hard, smooth and durable surface.

This process is much higher and much cheaper than the method of transporting pre-crushed material from a borrow pit often very far away.

Claims

CLAIM

Crushing method by tumbling from the synchronized action of two identical rotors, close enough to each other, to form a whole without their hammers hitting each other. These hammers are arranged in a triple spiral on each of the rotors to maintain the dynamic and static balance of the latter.

RJ-WENDICA ICWS MOKLFIEES

[received by the International Bureau on October 18, 1991 (October 18, 1991) amended claim (1 page)]

Method of crushing by tumbling from the synchronized action of two identical rotors (14), close enough to each other, to form a whole without their hammers (15) striking each other. These hammers (15) are arranged in a triple spiral on each of the rotors (14) to maintain the dynamic and static balance of these latter.