AU2016202844B2

AU2016202844B2 - Pylon for a stockpiling bulk device or a combined stockpiling stacker-reclaimer device

Info

Publication number: AU2016202844B2
Application number: AU2016202844A
Authority: AU
Inventors: Jörg Emmerich
Original assignee: MAN Takraf Fordertechnik GmbH
Current assignee: Takraf GmbH
Priority date: 2015-05-06
Filing date: 2016-05-04
Publication date: 2017-11-23
Anticipated expiration: 2036-05-04
Also published as: DE102015208396A1; AU2016202844A1; RU2016117320A

Abstract

Abstract A pylon in accordance with the invention for a stockpiling bulk device or a combined stockpiling stacker-reclaimer usable for example for a spreader. The stockpiling bulk device has a bogie and a transfer station of a feeding belt conveyor. The pylon of the invention has a boom enclosing section. This is preferably a quadratic structure, of which two opposite side surfaces are missing, through which the discharge belt conveyor is guided. Alternatively, a circular structure is similarly possible, advantageously a box-shaped structure is mechanically very stable and easily producible because of its flat surfaces. The height of the boom enclosing section is designed so that an unhindered operation of the belt conveyor is ensured. According to the invention a vertical mast section joins onto the boom surrounding section. As vertical mast section is understood in the context of this application a single vertical structure that has only one vertically aligned carrier. Figure 1

Description

Pylon for a stockpiling bulk device or a combined stockpiling stacker-reclaimer device Related Application

This application claims priority from German Application No. 10 2015 208 396.9 filed on 6 May 2015, the contents of which are to be taken as incorporated herein by this reference.

Field of the Invention

The invention relates to a pylon for a stockpiling bulk device or a combined stockpiling stacker-reclaimer device comprising a bogie and a transfer station from a belt conveyor or belt conveyor and stockpiling bulk device itself.

Background of the Invention

At a storage yard the tensioning of the supporting ropes of the booms takes place by way of a pylon. Known pylons for open pit cast mining machines are mostly designed as a complex two-dimensional structure, so that thereby the bearing forces of the ropes can be spread when introduced into the structure, and the pylon can then also absorb bending forces in the lateral direction well. The disadvantage is a low pivoting of the open cast mining machine, due to a collision of the pylon with the belt conveyor in case of larger swing angles.

Object of the present invention is to propose a pylon for a stockpiling bulk device or a combined stockpiling stacker-reclaimer, which allows a larger swing angle, and is easily and inexpensive to manufacture.

Any reference herein to a patent document or other matter which is given as prior art is not to be taken as an admission that that document or matter was known or that the information it contains was part of the common general knowledge as at the priority date of any of the claims.

Summary of the Invention

According to the invention this problem is solved by a pylon for a stockpiling bulk device or a combined stockpiling stacker-reclaimer with a bogie , a discharge boom and a transfer station of a feeding-belt conveyor, wherein the pylon includes a section enclosing the discharge boom, wherein the pylon is formed as a single vertical mast section above the section enclosing the discharge boom, with the mast section having a smaller width than the section enclosing the discharge boom in order to provide a large pivoting angle between the feeding belt leading to the transfer station and the discharge boom, and wherein the section enclosing the discharge boom is only so high that an unhindered operation of the feeding belt conveyor is ensured.

Throughout the description and claims of the specification, the word "comprise" and variations of the word, such as "comprising" and "comprises", is not intended to exclude other additives, components, integers or steps.

The pylon in accordance with the invention, for a stockpiling bulk device or a combined stockpiling stacker-reclaimer, is for example applicable for a spreader. The stockpiling bulk device has a bogie and a transfer station of a belt conveyor. The pylon in accordance with the invention has a boom enclosing section. This is preferably a cuboid structure, the two opposite side surfaces being missing, through which the discharge belt conveyor is guided. Alternatively, a circular structure is similarly possible, advantageously a box-shaped structure is mechanically very stable and is easily producible because of its flat surfaces.

The height of the boom enclosing section is designed such that an unhindered operation of the belt conveyor is ensured. In accordance with the invention a vertical mast section joins to the section of the boom surrounding the boom. As vertical mast section is understood, in accordance with the invention, a single vertical structure formed in the context of this application that has only one vertically aligned carrier.

It is particularly preferred that the counterweight boom is arranged at the mast section of the pylon. The counter boom is thus firmly connected to the mast section and more preferably tensioned on the mast section by means of ropes. Advantageously between counterweight boom and the section enclosing the belt conveyor there is sufficient space for the feeding-belt leading to the transfer station. A significantly larger pivoting angle of the stockpiling bulk device or combined stockpiling stacker-reclaimer is advantageously possible because of the small width of the mast section. A known alternative variant for increasing the pivot angle is that the pylon has a horizontal section in the region of the boom. Thus the pylon is positioned distanced from the bogie away in the direction of the discharge boom, resulting in an increase of the possible pivot angle. A disadvantage of this solution is that the centre of gravity of the device migrates along, which requires a massive steel construction and makes the device more costly and heavier.

In order to further increase the tilt angle of a stockpiling bulk device with the inventive pylon also a horizontal region of the pylon can be provided. The pylon in accordance with the invention is advantageously lighter than in the prior art, so that shifting the centre of gravity due to the horizontal region is consequentially less than in case of devices with pylons according to the prior art.

Advantageously, therefore, the length of the horizontal region of the pylon by means of the inventive design of the pylon and thus the displacement of the center of gravity can be substantially reduced. As described above, has also due to the lower weight of the pylon of the invention, a shift of centre of gravity has less impact.

The boom enclosing section joins at the end of the horizontal section. Advantageously, thereby the pivot angle can be further increased.

Furthermore preferably the horizontal section is pivotally connected to a fork of the bogie. Preferably, the horizontal section of the outer regions is joined to the the belt conveyor enclosing section. For example, the horizontal section also can consist of two lateral supports, which then pass into the forks of the bogie or are connected thereto. Advantageously the pivot angle can be further increased by the horizontal section.

Preferably, the vertical mast section is a closed hollow profile. A closed hollow profile is advantageously easy to manufacture, easy to walk on and inspect and thus to maintain. In addition, bending forces are very well absorbed.

Particularly preferably, the vertical mast section is constructed as a rectangular profile. Thereby it is preferred that the long side is oriented in the direction of the boom. Further preferably the long side tapers with the increasing height of the mast section. Advantageously, thus material can be saved, since the load on the mast section is smaller at the top.

In addition, preferably, the counterweight boom is designed considerably wider than the mast section and is connected thereto by arms laterally projecting from the mast section.

Thus, advantageously, the mechanical stability of the counterweight boom can be improved and warping thereof can be prevented.

Brief Description of the Drawings

An embodiment of the invention is explained hereafter with reference to figures. Thereby it is shown in:

Figure 1 a spreader according to the invention in a view obliquely from the front,

Figure 2 the same spreader at an inclined angle from behind,

Figure 3 the spreader with feeding conveyor belt, and

Figure 4 a plan view of the spreader with clarification of additional stockpile capacity. Detailed Description of the Preferred Embodiments

Figures 1 and 2 show a spreader with an inventive pylon. This has a discharge boom 1 and a counterweight boom 2. The spreader has a bogie 3 with a fork 31 to which a horizontal portion 4 of the pylon is connected. The horizontal section 4 then passes into the conveyor surrounding section 5. The section 5 enclosing the conveyor belt is box-shaped. The inner height of the belt conveyor enclosing section 5 is designed so that an unhindered operation of the belt conveyor on the discharge boom is ensured. A mast section connects 6 joins at the conveyor surrounding section 5. This is formed of a closed rectangular hollow profile. At the top, the mast section 6 has a mounting for tension ropes 61, from where the tension ropes for tensioning the discharge boom 11 and for tensioning the counterweight boom 21 proceed. Between the conveyor belt surrounding region 5 and the attachment for tensioning ropes 61 the counter-jib 2 is attached to the mast section 6. The attachment to the mast section 6 takes place by way of arms 62 projecting laterally from the mast section 6 at the end of which a suspension 23 of the counterweight boom 2 is arranged.

In Figure 3, the spreader is shown with a feeding-in conveyor 7. The feeding belt conveyor 7 leads to the transfer station 8, where the material is passed from the feeding belt 7 onto the conveyor belt of the discharge boom 1. It is clearly visible how a significantly larger pivotability of the spreader results from the narrow design of the mast section 6.

In Figure 4 is shown that the spreader has larger swing area A by way of the inventive pylon compared to the standard design. This increased pivoting range of the spreader also results in an additional stockpile capacity B, since the discharge boom can now reach more remote areas of the heap.

LIST OF REFERENCE NUMBERS 1 discharge boom 11 anchoring boom 2 counterweight boom 21 anchoring counterweight boom 22 counterweight 23 suspension counterweight boom 3 bogie 31 fork bogie 4 horizontal section 5 the belt conveyor enclosing section 6 mast section 61 mounting tension ropes 62 laterally projecting arms 7 supply belt conveyor 8 transfer station A enlarged swivel range B additional stockpile capacity

Claims

Claims

1. Pylon for a stockpiling bulk device or a combined stockpiling stacker-reclaimer with a bogie , a discharge boom and a transfer station of a feeding-belt conveyor, wherein the pylon includes a section enclosing the discharge boom, wherein the pylon is formed as a single vertical mast section above the section enclosing the discharge boom, with the mast section having a smaller width than the section enclosing the discharge boom in order to provide a large pivoting angle between the feeding belt leading to the transfer station and the discharge boom, and wherein the section enclosing the discharge boom is only so high that an unhindered operation of the feeding belt conveyor is ensured.
2. Pylon according to claim 1, wherein the pylon comprises a counterbalance arm, wherein he counterbalance arm is arranged at the mast section of the pylon, and wherein between the top of the section enclosing the discharge boom and the counterbalance arm boom a sufficient height for the feeding-belt conveyor leading to the transfer station is present.
3. Pylon according to one of the preceding claims, wherein the pylon has a horizontal section in the region of the discharge boom, which leads away from the bogie in boom direction, and joins at the end of the horizontal section of the section enclosing the discharge boom.
4. Pylon according to claim 3, wherein the horizontal section is rotatably connected to a fork of the bogie.
5. Pylon according to one of the preceding claims wherein the vertical mast section of the pylon is a closed hollow profile.
6. Pylon according to claim 5, wherein the vertical mast section of the pylon has a rectangular profile, which is arranged with its long side in the boom direction, whereby the long side tapers with increasing height of the mast section.
7. Pylon according to claim 2, wherein the pylon comprises a counterbalance arm, wherein the counterbalance am is designed considerably wider than the mast section of the pylon and is joined to this by way of the arm projecting sideways from the mast section of the pylon.
8. Stockpiling bulk device, or a combined stockpiling/stacker-reclaimer comprising a pylon according to one of the preceding claims.