DD289250A5 - ARRANGEMENT FOR JOINING LAYERED FRAMES, REVERSIBLE AND RETRACTABLE BELT FOLDER - Google Patents

Abstract

The invention relates to an arrangement for connecting Geruestrahmen lengsfahrbarer, reversible and retractable Gurtfoerderanlagen, as used on stakes of opencast mines for the promotion of mineral resources. The task was to combine the constructions of the carriers of Gurtfoerderanlagen while reducing their own weight so that diesz achieved a shortening of the axial distance and the Laengsfahrbarkeit is ensured by conventional means. For this purpose, it was found that the Geruestrahmen for the supporting frames of Foerdergurtes are made in lightweight construction and consist of Fachwerkstaeben and support profiles, where they are connected in the lower strand with each other and with the drive stations by support and traction cables. The Geruestrahmen take over for further in the upper strand durchgaengig arranged support cables a Stuetz- and Fuehrungsfunktion. For this purpose support frames are provided on the framework members of the supporting frameworks, which are equipped with safety devices. Fig. 1 {Geruestrahmen; Belt conveyor systems, movable, reversible, reversible; Laengsfahrbarkeit; Carriages in lightweight construction; Fachwerkstaebe; Support profiles; Untertrumverbindung; Carrying and traction cables; Obertrum-carrying cables; Safety devices}

Description

For this 4 pages drawings

Field of application of the invention

The invention relates to an arrangement for connecting scaffolding frames of longitudinally movable, reversible and retractable belt conveyor systems, as they are used on stakes in opencast mines, especially deep mining and other mining fields, which are to be limited spatially in their dimensions in terms of the claimed area.

Characteristic of the known technical solutions Belt conveyors are known in opencast mines, whose shoring designed as a kinematic chain and constraining on

are stored a rüc'ioaren track rust. They are variable in their total length only by the assembly of scaffolding fields and must be moved in the existing length also.

Furthermore, longitudinally movable belt conveyor systems have become known, the rigid, designed as a continuous carrier shoring

supported by wheels of smaller diameter rails.

The disadvantage, however, is that their mass / power ratio due to the heavy supporting structure very unfavorable

fails. This results in other disadvantages, such as high driving resistance, high drive power required on the tension member and a large installation, disassembly and transport costs.

In DE-EB 3329422 a supported on wheels and on rails longitudinally movable belt conveyor is described in which the Scaffolding fields are connected to each other and to the drive and deflection station via tie rods. The pulling force for the Driving should be through a separate, supported on crawler tracks and arranged at the rear of the system device

be applied. A second, provided at the head of the analysis and supported on wheels as well as on rails mobile

Device is to serve with a lowerable ballast of the coarse tension, an adjustment is for the fine tension of Gurt6s responsible. A disadvantage proves that the entire system eligible only in one direction and also longitudinally movable

is. In addition, large amounts of power are needed to move this heavy structure

Fahrwidorstände high and the installation effort considerably. The DD-EB 256491 describes a belt conveyor, the kinematic chain of supported on wheels support stations

represents, wherein the support stations are provided with a support roller mat and connected by spacer bars. The conveyor has larger distances between the supporting roller belts, which is intended to achieve better longitudinal mobility.

But this is only to be realized if a free sag of the belt between the individual support stations given and a

strong belt toleration is present. However, these factors are hardly realizable in the pi aktiseden operation.

Further constructive solutions for improved mobility of belt conveyor systems for transport or at the back

describe DD-EB 2 56492 and DD-EB 260906.

For this purpose, top and bottom titra of the framework fields were structurally separated and the belt superstructure was supported on wheels,

whereby it is longitudinally movable. The connection of the scaffolding trolleys should take place via telescope elements. But that brings no significant weight reduction of the system with him, the use of telescopic elements limits the shortening of the

Conveyor system. A belt conveyor system described in DD-EB B 65 G / 317 580 provides special scaffolding frames movable on rails,

which are connected to each other and to the drive stations via tie rods. This brings a

Weight reduction of the individual scaffolding fields and a better mobility of the plant in operation, but 'is

so that no collision of the conveyor system and thus a change in length altogether possible. There are no advantages in the back of the track of the conveyor.

-2- 289 2SO

Furthermore, rope-tensioned belt conveyors are known, which are mainly used in underground mining due to their ease of assembly. Here, the adjustable supports carry next to the carrying roller stations of Untertrum. also the carrying ropes, in which the upper strand carrying roller stations are suspended. The required cable traction is achieved by a cable turnbuckle. However, these systems are neither retractable nor can be moved longitudinally.

Object of the invention

The object of the invention is to develop a belt conveyor system, which consists of a kinematic chain mobile scaffolding frames with the additional functionality at the Reversier- and Rückbarkeit, has a reduced driving resistance and manages without an increase in the previous drive power.

Explanation of the essence of the invention The invention is based on the object, the constructions of the shoring won Gurtförderanlagen while reducing their Self-weight to combine with each other so that one shortening of the axial distance is achieved and the longitudinal mobility

the entire system can be realized on tracks with conventional traction means.

This is done according to the invention in that the support structure for the endlessly circulating conveyor belt of known, a

kinematic chain forming and supported on wheels and on rails longitudinally movable scaffolding frames composed in lightweight construction of two suspension bars and a support profile and are connected in the lower strand with each other and with the drive stators by support and traction cables, which scaffolding for more in the upper strand throughout arranged supporting cables, assume a supporting and guiding function. These are the truss rods of

Shoring support profiles provided, which are equipped with safety devices and groove shape in cross section

respectively.

The support and traction cables of the lower run are attached to brackets which are attached to the longitudinal and transverse beams of the scaffolding frames

are attached, it is always provided within the scaffolding frames in the upper and lower run only one carrying roller station, which is hung at fixed intervals in the support or support and traction cables. The power transmission during the

Driving operation of the entire belt conveyor system is carried out by the arranged in the lower strand of the scaffolding frames and

Tension cables.

embodiment With reference to an embodiment, the invention will be described closer. The accompanying drawings show in 1 shows an overall view of the belt conveyor, 2: a side view of cable-braced scaffolding frames according to FIG. 1, 3 shows a section A-A of Figure 2 4 shows a section B-B also according to FIG. 2.

The support frame for an endlessly circulating conveyor belt 1 of the belt conveyor shown in Figure 1 consists of scaffolding frames 2, which are supported on wheels 4 and longitudinally movable on a track consisting of rails 5 and 6 sleepers track. The scaffolding frames 2 are connected to each other and with a 'drive station 3 in the lower strand by supporting and traction cables 8. In the upper strand continuous tow ropes 7 are vorgest. en, which are supported on the scaffolding 2. The tension of the conveyor belt 1 as well as the carrying or traction cables and traction cables 7; The conveying process is applied by the drive stations 3. The power transmission during the driving process β, rolgt through the support and traction cables 8. The scaffolding frames 2 shown in Figure 2 consist of transverse and longitudinal members 15; 16, which ensure the stability of the system in the horizontal plane. Furthermore truss rods 14 are provided which serve to support the wheels 4 and support profiles 13, in which the support cables 7 are guided. The wheel supports 17 are on the transverse and longitudinal members 15; 16 arranged and represent as a federation designed as a chassis lower run. On the longitudinal members 16 brackets 11 and hook eyes 19 are welded. In the brackets 11, the support and traction cables 8 and in the hook eyes 19 in a known manner the lower run-carrying roller stations 10 are mounted.

The truss rods 14 are welded on the one hand to the cross members 15, on the other hand connected by a support plate 12 to a truss structure. On the support plates 12, the support plates 13 are welded to support the support cables 7. At the support plates 12 and Fachwer bars 16, further hook eyes 18 are connected, in which upper strand carrying roller stations 9 are suspended in a known manner. FIG. 3 illustrates the design principle in the axis of the scaffolding frames 2. The central component forms the transverse beam 15 on which the longitudinal members 16, wheel supports 17 and truss rods 14 are connected.

The upper and Unterini.v, Tiagrollenstationen 9; 10 are in the attached to the support plates 12 and longitudinal members 16 hook eyes 18; 19 hooked.

The support cables 7 are supported on the support profiles 13, whose cross section forms a Rilleriform and which are equipped with a snap hook 20 which ensures easy engagement of the support cables 7 in the grooves of the support profiles 13, a lifting against it. FIG. 4, corresponding to the section B-B in FIG. 2, characterizes the arrangement of the upper and lower strand carrying roller stations 9; 10 in areas of free rope sag. The upper and Untertrumtragrollenstationen 9,10 are connected via tabs 21, 22 bolts and cotter pins 23 with on the support and traction cables 8 attached cable clamps 24, wherein the positioning of these cable clamps 24 and their tight fit by loosening or tightening the screws 25 and Nuts 26 is realized.

Claims (2)

1. Arrangement for connecting scaffolding frames longitudinally movable, reversible and retractable belt conveyor systems, in which d ~ shoring these scaffolding frames for the endless circulating conveyor belt form a known kinenv see chain and supported on wheels and are movable on rails, characterized in that executed in lightweight construction Scaffolding frames (2) composed of two truss rods (14) and a support profile (13) and in the lower strand with each other and with the drive stations (3) by supporting and traction cables (8) are connected, said scaffolding frames (2) more in the upper strand throughout have arranged supporting cables (7), to the truss rods (14) of the supporting frameworks supporting profiles (13) are arranged with safety devices which have a groove shape in cross section. 2. Arrangement for connecting scaffolding frames iängsfahrbarer, reversible and retractable Gurtfördereranlagen, according to claim 1, characterized in that the support and traction cables (8) of the lower strand of holders (11) are fixed to the longitudinal and transverse beams (15; ) of the scaffolding frames (2) are mounted, while within the scaffolding frames (2) in the upper and lower run always only one carrying roller station (9; 10) is provided which at fixed intervals in the supporting or supporting and traction cables (7; 8) is mounted.