DE8221537U1 - SLIDING DELIVERY DELIVERY - Google Patents

Description

The invention relates to a displaceable conveyed goods transfer for continuous conveyors such as belt or chain conveyors in underground mining, which overlap at their ends and are connected to form a unit that can be moved together in the conveying direction are, the transfer at least one substructure with skids running parallel to the conveying direction and the movement by a drive arranged in the substructure in connection with a flexible traction means how e.g. a chain is effected.

In underground mining, the coal extracted from the face is usually picked up by a chain conveyor and passed on to a downstream belt conveyor. The chain conveyor is adjusted according to the progress of the dismantling advanced in its longitudinal direction, at the same time the conveyed goods transfer is moved. In the following Belt conveyor creates a gap that is closed again by installing an intermediate piece will. In a known transfer of conveyed goods, the head station of the belt conveyor and the rear end are of the section chain conveyor stored on a common substructure, which in turn with parallel running Skids resting on the lying.

For the advancement of a transfer of conveyed goods, it is known Use two parallel lifting cylinders, each with its cylinder housing at the rear end are attached to the substructure and the piston rods can be connected to a stationary anchorage. To for that intermittent advancement towards successive anchors create, one usually uses fixed anchor chains, with which the free end of the retracted piston rod in front The beginning of a return movement is connected with the aid of a holding claw. With such a feed device is the return movement that can be achieved from the available extension length of the piston rods after tightening the armature

chain dependent and accordingly relatively low. The time required for a reverse process is also corresponding great. In addition, there is a risk of accidents if the retaining claw is not carefully inserted into the relevant area Link of the anchor chain has been attached.

Another known device for moving a transfer of conveyed goods consists essentially of two on the right and revolving drive chains which are arranged on the left in the substructure and are coupled to a drive. On the lower run the end of a connecting chain is firmly attached to each drive chain, with a hook at the other end has, which can be suspended in a stationary anchor chain. With this back device is a continuous one Return process up to approx. 5m achievable, which means approx. Five times the size of a device in which the drive is effected by lifting cylinders.

In mining operations with greater mining progress it is it is desirable to carry out even larger return movements of the conveyed goods transfer in one operation, i.e. without interruption to be able to. The drive devices known up to now are not suitable for this purpose.

The invention aims to remedy this. It aims for a sliding transfer of conveyed goods for continuous conveyors in underground mining, which overlap with their ends and on a substructure on the lying means Skids rest to create a drive that has a longer continuous return movement than with the known Facilitates facilities in one operation and offers a high level of accident safety.

In the case of a displaceable transfer of conveyed goods of the type mentioned at the outset, this object is achieved according to the invention solved in that on each longitudinal side of the substructure

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a drivable chain wheel is arranged with an axis of rotation running horizontally and transversely to the conveying direction and An anchor chain extending in the direction of movement is guided over each sprocket with the help of chain guides is connected to a stationary anchorage at its front end with respect to the advancing movement is.

In a further embodiment of the invention is to guide the anchor chain on the inlet and outlet side of the Sprocket each a free-running chain guide wheel in such a way arranged that the anchor chain the drive sprocket

wrapped around an arc length of approx. 180 or more.

It can also be advantageous to use a fixed, equidistant from the circumferential line to guide the anchor chain to provide a guide rail running along the chain wheel,

which surrounds the drive sprocket over a length of about 180 and the ends of which are bent outwards.

The drive of the chain wheels can be designed so that | the sprockets with the same or different rotation j

number are drivable. For this purpose, either a special gear can be provided that allows for different settings Speeds and is coupled with a single drive motor, or each sprocket can be used be coupled with its own drive motor. The drive motor can be electric, hydraulic or pneumatic be an operated engine.

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With regard to the relatively high tensile load- |

conditions that occur when advancing, it is advisable to use plate link chains for j the anchor chains.

A major advantage of the invention is to be seen in the fact that much larger continuous return movements in

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one operation, for example 8 m and more, possible are. The maximum possible length of a return movement depends on the length of the anchor chain, which is under each present conditions is justifiable from a technical and economic point of view. It should be emphasized also that by increasing the return movement to be carried out in one operation, the working and Time required for advancing the transfer of conveyed goods is reduced accordingly.

The invention is described below with reference to the drawing, in which an exemplary embodiment of a displaceable transfer of conveyed goods is shown in simplified form, explained in more detail. It shows:

FIG. 1 shows the substructure with a belt conveyor resting on it for a transfer of conveyed goods in a side view and

FIG. 2 shows a cross section of the transfer of conveyed goods in plane I-I of FIG. 1 on a larger scale.

The transfer of the conveyed goods is fixed on a substructure 1 j which essentially consists of two parallel! Side parts 2, 3 consists of individual pieces under author

Turning I-profiles into one unit, for example by welding or screw connections, are firmly connected i. The side parts 2, 3 are one below the other through Tra-j verses or sheet metal plates arranged on top in connection with one another. In FIG. 2, an upper sheet metal plate 4 is shown represents. On the underside of the side panels are continuous; de skids 5 available, which at their ends opposite: are angled upwards when lying down. The total load on the transfer of the conveyed goods is controlled by the skids 5; transferred to the lying. i

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The end section of a conveyor belt rests on the substructure 1 and is located within a U-shaped support structure '

6 is stored and brings the conveyed material obtained in the longwall face. At the end of the conveyor is a crusher 7, which is used to break the relatively coarse To shred the conveyed material before passing it on. From the crusher

7 the conveyed material arrives on a further conveyor, e.g. a chain conveyor 8, which is also inside a Support and protective structure 9 is stored.

As can be seen from the cross-sectional view in FIG. 2, the side walls of the support ur.d protective structure 9 from two superimposed U-irons 10. These point with their open sides outwards and are both at the bottom and at the top through base and cover plates, which are each attached to the corresponding legs of the U-iron 10 are attached, connected to a rigid box girder. This box girder is not only used for storage of the chain conveyor 8, but also forms an opposite the substructure 1 freely cantilevered beam, on the underside of which the head station of a subsequent conveyor, for example a belt conveyor is attached. This The belt conveyor takes over that brought in from the chain conveyor 9 and conveyed goods thrown onto the upper run. The head station of the belt conveyor is connected to the carrying and Protective structure 9 rigidly connected and at the same time advanced with the transfer of conveyed goods.

For moving the transfer of conveyed goods in the direction of the longitudinal runners 5 is on each of the side parts 2, 3 of the substructure 1 a drive member is provided which essentially! borrowed from an outside sprocket j 11, which are each coupled to a separate drive motor 12 located inside the substructure 1 is. The chain wheels 11 have a common axis of rotation which runs horizontally and transversely to the conveying direction. before

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and behind each sprocket 11 is an idle chain guide wheel 13, as shown in Fig. 1, arranged in the same plane as sprocket 11, i.e. each chain guide wheel is e.g. mounted on a fixed pin so that it can rotate freely, but is secured against axial displacement. On its upper half of the circumference is the sprocket '

i 11 wrapped by a link chain 14 on the inlet and outlet side of the sprocket 11 on the underside is guided around the respective chain guide wheel 13 and the ends of which rest on the lying surface. This in With respect to the advancing movement, the front end - the left end in FIG. 1 - of the link chain 14 is during the advancing movement posted on a stationary anchorage, not shown.

The drive motors are used to advance the transfer of the conveyed goods 12 switched on. In the first phase of the rotary movement of the chain wheels 11, the plate-link chains are first of all 14 tightened, then the desired return movement of the conveyed goods transfer begins. Depending on the length of the The plate-link chains 14 used can, with such a drive, return movements without interruption up to 10 m and j more to be carried out.

With a different control of the individual drives, there is also the possibility of transferring the conveyed goods to steer during the reverse process in a certain way or to influence their direction of movement, as far as this should be necessary.

It is useful in the area of the sprockets 11, 13 to; the side parts 2, 3 of the substructure 1 to attach hoods 15, \ as shown in Fig. 2, to protect against external influences and to avoid accidents. These covers 15 are each open at the bottom and at the two end faces. ·

Claims (6)

Radt, Finfcener, Ernesfi Patentanwälte ■ Hcinrich-König-Straßc 119 4630 Bochum 1 telephone (0234) 47727 / S8 Telegram address: Radlpdlcnt Bochum Telex: 8Ϊ5769 radt ei 82 119 WE / US Slidable conveyed goods transfer protection claims 1. Movable goods transfer for continuous conveyors such as belt or chain conveyors in underground mining, the ends of which overlap and become one in the direction of conveyance jointly movable unit are connected, the transfer at least one substructure with parallel to the conveying direction running skids and the movement by a drive arranged in the substructure in connection with a flexible traction device such as a chain, thereby marked net that on each long side of the substructure (1) a j Drivable chain wheel (11) with horizontal and transverse to | Conveyor direction running axis of rotation is arranged and J over each chain wheel (11) with the help of chain guides 'an anchor chain extending in the direction of movement' (14) is guided, at its front end with respect to the advancement j movement with a stationary anchorage connected is. 2. Transfer of conveyed goods according to claim 1, characterized in that for guiding the anchor chain (14) on the Entry and exit side of the sprocket (11) each one free running chain guide wheel (13) is arranged such that the anchor chain (14) on the drive sprocket (11) an arc length of approx. 180 or more. 3. Transfer of conveyed goods according to claim I ₁ , characterized in that for guiding the anchor chain a fixed, equidistant from the circumferential line of the sprocket running guide rail is provided, which the Ket » Tenrad surrounds a length of about 180 and the ends are bent outwards. 4. Transfer of conveyed goods according to one of claims 1 to 3, characterized in that each chain wheel (11) is coupled to an individual drive. 5. Transfer of conveyed goods according to claim 4, characterized in that that the individual drive consists of an electrically, hydraulically or pneumatically operated motor (12). 6. Transfer of conveyed goods according to one of claims 1 to 5, characterized in that the finite anchor chains (14) f> ls plate link chains are formed.