WO2013059954A1

WO2013059954A1 - Mechanical hopper for transporting large amounts of mineral ore or sterile materials, to be used in heavy-duty trucks

Info

Publication number: WO2013059954A1
Application number: PCT/CL2012/000065
Authority: WO
Inventors: Cesar Antonio Mancilla Escobar
Original assignee: AREVALO CASTILLO, Rafael Antonio
Priority date: 2011-10-28
Filing date: 2012-10-26
Publication date: 2013-05-02

Abstract

The invention relates to a mechanical hopper for transporting large amounts of mineral ore and sterile materials, to be used in heavy-duty trucks, characterised in that the plurality of girders that form the structure thereof, the sectional floor sheets, the front wall, side walls, side extensions, canopy, stone ejector holder and load deflectors are mainly attached by bolts. In addition, the side extensions can be attached optionally to the side walls in order to increase the capacity of the hopper. The manufacturing materials are high-strength structural steels of 300 to 750 MPa and anti-abrasive steels of 300 to 500 HB. The hopper has a chain-type stone ejector installed, which protects the wheels of the truck. Since the elements of the hopper are mainly attached by bolts, repairs can be performed on the truck, reducing the time required for said tasks and not requiring the removal of welds, only the removal of bolts from the compromised area. In addition, since the hopper is sectional, it is possible to move same by sections and to assemble same in the field, avoiding transport problems due to the large size thereof, for example in mines which are accessed via tunnels.

Description

"MECHANIC HOPE INTENDED FOR THE TRANSPORTATION OF LARGE AMOUNT OF MINERAL OR STERILE VOLUME, TO BE USED IN HIGH TQNELAJE TRUCKS

Technical Sector

The present invention request is directed to a Mexican mining hopper, which applies to all types of loading conditions, adapting to a variety of specific conditions of each mining operation, and which mainly allows easy assembly and disassembly of the sections that constitute the floor, side walls, front wall and visor.

Previous Technique

The large volumes of ore mined in the miners require heavy duty hopper trucks, which must carry out repeated cycles to transport the ore from its extraction site to where it will be processed.

Due to the great importance that hoppers have in mining, their designs are in constant improvement. Achieving in this way obtain better yields in the transport of material. An important and repetitive factor in these improvements has been the materials with which the hoppers are constructed. In this way we can find them made of different types of steels according to the request that each part of the hopper has. That is why the materials used vary from structural steel, through the anti-abrasive and reaching the polymeric materials. The geometry of the hoppers has also been altered over time, from straight floors to curved floors, using folded beams, type t, type I or drawer.

i To make a repair to the hoppers these must be disassembled, which incurs the use of lifting equipment and low beds. This is because the current designs do not allow a major repair on the truck, involving an average process of 30 days to carry it out. In addition to the time required for repair, high financial and security risks are also incurred.

A disadvantage that the hoppers possess is the means by which it is transported, from its place of manufacture to the place of slaughter. Due to the large size of the hoppers, a route feasibility study must be carried out, which depends directly on the road authority of the area to be traveled. When transport is international, the problem is maximized because the expenses increase due to the large size and weight of the hopper.

Translating the actions described above into costs, these are very large. Therefore, the importance of constant improvements in hopper designs, which attempt to solve these problems.

The present invention patent application, attacks the various problems explained above, in an efficient and effective manner at the same time. Offering an innovative solution, of high inventive level and susceptible of industrial application that reduces risks and costs.

The mechanical hopper presented in this application allows easy assembly and disassembly of the sections that constitute the floor, the side walls, the front wall and visor, greatly reducing the time required for these tasks. Because its joints are mainly made by bolts, it has the condition of being a mechano hopper, so welding removal processes should not be incurred, concentrating only on the extraction of bolts from the hopper sections. Thanks to an arduous engineering study, it was possible to dispense almost completely with the welding joints, identifying the areas where the highest tensions are produced due to the loading and unloading of the hopper in order to determine precisely where the bolt joints both of the steel plates as of their sectioned beams that make up their structure.

A remarkable feature of the Mexican mining hopper is its sectioned design, which allows the change of the components (side, visor, front and floor) that are only affected in the repair. This factor is also extremely important when transporting the hopper to the site, because it is done in sections and then assembled on site. Which in cases of miners that are at great heights above sea level, where the access road to them is through tunnels, greatly favors. In the case of the process of assembly in the field, being mecano, the required welding is minimal because the great majority of the joints are bolted, reducing the chances of welding failures and the inputs that it requires.

Brief description of the figures

Figure N ° 1 represents an isometric view of the mechano hopper showing the main parts of the floor hopper, front wall, side walls, top wall (visor).

Figure 2 represents a side view of the mecca hopper of the present invention.

Figure 3 represents a rear view and shows the beam configuration of the present invention

Figure 4 represents a front view and shows the configuration of the beams of the present invention.

Figure 5 represents a bottom view and shows the configuration of the beams of the present invention.

Figure 6 represents a top view of the mecca hopper.

Figure 7 represents a bottom view of the sections of the floor of the hopper.

Figure 8 represents a front view of the sections of the floor of the hopper. Figure N ° 9 represents a bottom view of the sections of the floor of the hopper.

Figure 10 represents a side view of the 3 sections of beams corresponding to the 3 sections of the floor of the hopper.

Figure 11 represents a bottom view of the sections of the chassis of the floor of the hopper.

Figure 12 represents a bottom view of the beam sections of the floor sections of the mecha hopper.

Figure 13 represents a front view of the legs of the chassis and section of the front of the hopper.

Figure N ° 14 represents a side view of the beam sections corresponding to the 3 floor sections of the mecha hopper.

Figure 15 represents a top view of the sections of the chassis of the floor of the hopper.

Figure N ° 16 represents a rear view of the stone boot holder.

Figure 17 represents a top view of the floor sections and front section of the mecha hopper.

Figure N ° 18 represents a side view of the floor sections and front section and side sections of the mecha hopper.

Figure N ° 19 represents a top view of one of the anti-abrasive steel protection plates of the mechano hopper.

Figure 20 represents a side view of the side sections and front section of the mecha hopper.

Figure 21 represents a side view of the front wall section and the mechanolateral side.

Figure N ° 22 represents a side view of the front wall section and the mechanolateral side.

Figure N ° 23 represents a rear view of the mechano hopper. Figure No. 24 represents a front view of the bolting holes of the front wall section of the mecha hopper.

Figure 25 represents a front view of joint agents consisting of curved section of anti-abrasive steel of varying radius for joining between the sections of the side walls, the section of the front wall and the section of the visor.

Figure 26 represents a rear view of the mechano hopper.

Figure 27 represents a rear view of the 3 beam sections of the front wall section.

Figure No. 28 represents a top view of the joining areas of the beam sections of the section corresponding to the front wall.

Figure No. 29 represents a top view of the joining areas of the beam sections of the section corresponding to the front wall.

Figure No. 30 represents a front view of the mecca hopper.

Figure No. 31 represents a side view of one of the sectioned, grooved beams I joining the side and front walls.

Figure N ° 32 represents a front view of the visor of the mecha hopper.

Figure N ° 33 represents a front view of a cylindrical section with a variant radius.

Figure 34 represents a side view of one of the guns that joins the visor sections with the side wall sections.

Figure No. 35 represents a side view of the visor of the hopper.

Figure No. 36 represents a bottom view of the visor of the mecha hopper.

Figure 37 represents a top view of the visor of the mecha hopper.

Figure No. 38 represents a view of a deflector of anti-impact load.

Figure N ° 39 represents a top view of the visor of the mecha hopper. Figure No. 40 represents a top view of the visor of the mecha hopper. Complete description

The mechanical hopper has several fundamental aspects. The floor of the hopper is divided into 3 parts (figure 7), which are of curved section of varying radius at the ends and in the main section of the center, is straight (figure 8). The floor is constructed of high strength structural and anti-abrasive steel. The joints between the 3 sections of the floor are butt and bolted with flanges of straight section and variant radius, being reinforced with gousset welded to the floor (figure 9). Between each joint there is an insulating rubber in order to avoid friction. The beams that make up each section of the floor are of varying inertia, with beams type "C" with covers made up of 3 sections (Figure 10). The union of the beams with the legs of the chassis is mechano by means of 4 to 6 bolts (Figure 11). The upper covers of the beams C are grooved, in this way they will be fixed with intermittent welding to the floor (Figure 12).

The legs of the chassis are meccano and are divided into 3 sections which hold the floor and the front together (figure 13). The angle of inclination is equivalent to that of the chassis of the truck (6 ^or 12 °), but the floor has an angle of 9 ^or 12 °, which allows this way to avoid spills of transported material. (Figure 14), Each section of the legs of the chassis are joined by butt joints with flanges and bolts, with insulating rubber between each joint to avoid friction (Figure 15). The stone boot holder is meccano and the stone boot is of the chain type (figure 16). The union between floor and front is of curved section with variant radius (figure 17).

The sides are mecano, which are attached to the floor and front (figure 18). The type of bolt used between the front and the floor is ASTM A325. To protect the bolts from abrasion of the aggregates, anti-abrasive steel protection plates are installed inside the hopper (figure 19). In the case of the union of the side with the front, this will be done through a cylindrical plate of variant radius (figure 20). The steel used in manufacturing is high strength between 300 MPa and 750 MPa or anti-abrasive from 300 HB to 500 HB.

The side allows to increase the volumetric capacity of the hopper, by the addition of a mechanolateral side (figure 21), which is attached to the side by a plurality of bolts, which are protected by an anti-abrasive steel plate (figure 22).

The front wall type mecca is connected to the upper wall (visor), side walls and floor (figure 23). With the latter it is connected by bolts, which are protected by an anti-abrasive steel plate (figure 24). While with the sides it joins through joint agents consisting of curved section of anti-abrasive steel of varying radius (figure 25). With the upper wall (visor) it joins through a joint agent consisting of curved section of anti-abrasive steel of varying radius (figure 26).

The front wall is composed of three beams I sectioned into three parts that are joined together by means of flanges and bolts with an anti-friction rubber between the flanges (Figure 27, 28,29), grooved in their upper wing, which are fixed to the upper wall (visor) and floor by intermittent welding (figure 30). Two grooved I-beams join the side and front walls by intermittent welding (Figure 31, 32).

The upper wall (visor) type mecano, is attached to the front wall through a cylindrical section of varying radius (Figure 33). At the same time the upper wall joins the side walls by means of two mechano guns (figure 34,35).

The visor is made up of high strength anti-abrasive and structural steels, the final section of which joins the cylindrical section through grooves with intermittent welds (figure 36). It also has a plurality of beams I grooved in the upper wing and attached to the base plate thereof (Figure 37). At the edges of the visor, two anti-impact load deflectors are used (Figure 38,39), to prevent the operator from falling rocks or rearview mirrors.

The edges of the visor are protected by a high-strength structural steel plate, fastened and stiffened by gousset to prevent spillage on the operator's cab (figure 40).

Claims

1.- Mechanical hopper destined to transport a large amount of mineral or sterile volume, to be used in high tonnage trucks that allows easy assembly and disassembly of the sections that constitute the floor, the side walls, the front wall and the visor CHARACTERIZED for being constructed mainly as follows: a) Its manufacturing materials are high strength structural steels between 300 to 750 MPa and anti-abrasive steels between 300 to 500 HB; b) A variety of sectioned beams where each section joins each other by means of flanges to three sections that constitute the main beams of the chassis arranged longitudinally to the floor of the hopper. c) Three sections of anti-abrasive steel plates that joined together by bolts constitute the floor of the hopper. d) Two formats of anti-abrasive steel plates that constitute the two side walls and that are connected by bolts to the sections of the front wall, floor, and the variety of beams that make up the structure of the front wall; e) Two mechano overlays that may or may not be installed and are fixed by bolts on each section that constitute the side walls; f) A section of steel plate that constitutes the front meccano wall that is attached to the floor section, to the side wall sections and to the visor section by means of joint agents consisting of curved sections of anti-abrasive steel of variant radius by bolts; g) A mechanical visor attached to the section that constitutes the front wall by means of a gasket agent, and attached to the side walls by means of guns; h) Load deflectors attached at each side end of the visor; i) Two Boot Porta mecanos stones attached to the bottom of the floor of the hopper, to which at the same time is attached the boot stone type chain;

J) Agents of joints constituted of curved section of anti-abrasive steel of variant radius for the connection between side walls, front wall and visor.

2. - Mechanical hopper for the transport of a large amount of mineral or sterile volume, to be used in high tonnage trucks, according to claim 1 CHARACTERIZED in that the structural steel is applied to the beams, the chassis, boot stones and load deflectors and anti-abrasive steel to the base plates that make up the three sections of the floor, the two sections of the side walls, the side envelopes, the section of the front wall and the section of the visor;

3. - Mechanical hopper intended for the transport of a large amount of mineral or sterile volume, to be used in high tonnage trucks, according to claim 1 CHARACTERIZED because the plurality of type C variant inertia beams with slotted covers that fix the three sections of the floor of the hopper by intermittent welding, are conformed by 3 sections which are joined by means of flanges to the legs of the chassis with 4 to 6 bolts;

4. - Mechanical hopper for the transport of a large amount of mineral or sterile volume, to be used in high tonnage trucks, according to claim 1 CHARACTERIZED because the two legs of the chassis are constituted by two beams I of variant inertia fixed in the upper wing by intermittent welding to the three sections of floor planks, arranged at the center and longitudinally of the latter and have an angle of 6 ^or 12 °, these beams are divided into 3 parts and are butt joined between them by flanges by 12 bolts in the rear section and 20 bolts in the front section by installing an anti-friction rubber between the flanges;

5. - Mechanical hopper intended to transport a large amount of mineral or sterile volume, to be used in high tonnage trucks, according to claim 1 CHARACTERIZED because each section of floor plates it is connected to each other through flanges, with anti-friction rubber between them, bolted by 6 or 12 bolts;

6. - Mechanical hopper for the transport of a large amount of mineral or sterile volume, to be used in high tonnage trucks, according to claim 4 CHARACTERIZED because the butt joints of the joints between the sections of the floor with the beams of the chassis is made by means of a flange of straight section and radius variant, this being reinforced with gousset welded to each section of floor plate;

7. - Mechanical hopper intended for the transport of a large amount of mineral or sterile volume, to be used in high tonnage trucks, according to claim 3, 4 and 5 CHARACTERIZED because any flanged gasket with flange will have anti-friction rubber gasket between them ;

8. - Mecano hopper for the transport of a large amount of mineral or sterile volume, to be used in high tonnage trucks, according to claim 5 CHARACTERIZED because a mecha stone boot boot is installed on the central plate section of the floor, adjustable to the axle of the wheel of the truck, fixed by 4 bolts that the boot carries chain type stones through a 1045 steel axle;

9. - Mecano hopper for the transport of a large amount of mineral or sterile volume, to be used in high tonnage trucks, according to claim 1 CHARACTERIZED because the meccano side walls are connected to the front by means of joint agents those that are fixed with a plurality of bolts covered by a perforated sheet of anti-abrasive protective steel, and connected to the front plate section of the floor by 30 to 50 bolts type ASTM A325, covered by a perforated plate of anti-abrasive protective steel;

10. - Mechanical hopper for the transport of a large amount of mineral or sterile volume, to be used in high tonnage trucks, according to claim 9 CHARACTERIZED because in each connection zone of the side walls, sections of floor plates, front wall, and visor is installed by bolts a perforated anti-abrasive protection plate;

11. - Mechanical hopper intended for the transport of a large amount of mineral or sterile volume, to be used in trucks of high tonnage, according to claim 1 CHARACTERIZED because they may or may not be installed on the lateral mechanos attached to each side by 30 to 50 bolts , covered by a perforated anti-abrasive protective steel plate welded to the side envelope;

12. - Mechanical hopper intended for the transport of a large amount of mineral or sterile volume, to be used in high tonnage trucks, according to claim 1 CHARACTERIZED because the mechanical front wall is constituted by a straight anti-abrasive plate from 400 to 500 HB and it is attached to the main plate section of the floor by bolts covered by a perforated plate of protective anti-abrasive steel that is welded to it, while with the side walls it is joined through the joint agents that are fixed through of bolts protected by a perforated plate of protective anti-abrasive steel that is welded to it. The connection between the front wall and the visor is made through a cylindrical plate of 350 ° to 700 ° radius fixed by means of 30 to 50 bolts, protected by a perforated plate of protective anti-abrasive steel that is welded to it;

13. - Mechanical hopper for the transport of a large amount of mineral or sterile volume, to be used in high tonnage trucks, according to claim 1 CHARACTERIZED because three beams of variant inertia grooved in its upper wing, sectioned in three parts which are connected to each other through flanges, with anti-friction rubber between them and bolted by 4 to 6 bolts, they join in the center the visor, front wall and main section of the floor welded to the base plates by intermittent welding;

14. - Mecca hopper destined to the transport of great quantity of mineral or sterile volume, to be used in trucks of high tonnage, according to claim 1 CHARACTERIZED because in the front wall two beams of variant inertia grooved in its upper wing are fixed horizontally by welding, joining at its ends to the side walls by intermittent welding;

15. - Mechanical hopper intended for the transport of a large amount of mineral or sterile volume, to be used in high tonnage trucks, according to claim 1 CHARACTERIZED because the mechanical type visor is constituted by two anti-abrasive steel plates, a straight and another cylindrical variant cylinder, the cylindrical begins at the upper edge of the front wall and the straight ends the visor, and they are joined by overlapping gasket with intermittent welding, the visor is attached to the front wall by a plurality of bolts, protected by a perforated anti-abrasive steel plate that is welded to it;

16. - Mechanical hopper for the transport of a large amount of mineral or sterile volume, to be used in high tonnage trucks, according to claim 1 CHARACTERIZED because the visor is constituted by two 2 guns at its ends that join it with the side walls using 12 to 20 bolts, the two guns are constituted by a beam beam fixed by continuous welding to the visor and by bolts to the side walls, the edges of the visor are protected by a high-strength structural steel plate, fastened and stiffened by anti-spill gousset;

17. - Mechanical hopper for the transport of a large amount of mineral or sterile volume, to be used in high tonnage trucks, according to claim 1 CHARACTERIZED because the two mechanical load deflectors are constituted by high-strength structural steel plates and are fixed at the ends of the visor by 6 to 12 bolts;

18. - Mechanical hopper for the transport of a large amount of mineral or sterile volume, to be used in high tonnage trucks, according to claim 1 CHARACTERIZED because two beams of variant inertia grooved in its upper wing, sectioned in two parts connected through flanks, with anti-friction rubber between them, bolted by 6 to 12 bolts, join the visor and the front wall at the ends.