Length-variable joint of suction pipe to dust channel

FIELD: mining.

SUBSTANCE: invention is related to mining industry, namely to devices for tunneling of underground bottomholes. Device comprises tunneling combine, stationary transportation accessory, transmission or bridge transporter arranged between them and installed with the possibility of movement on walker mechanism or frame, accordingly, and ventilation accessory. Ventilation accessory comprises suction pipe, immovable ventilation pipeline and length-variable joint of suction pipe with dust channel of ventilation accessory. Length-variable joint comprises helical ventilation pipe suspended on bearing cord. Bearing cord is stretched between two support parts of walker mechanism or frame, accordingly, displaced in the same direction and tunneling combine, and is directed by means of diverging rollers.

EFFECT: invention provides for reliable installation of ventilation pipe, excluding hogging under action of longitudinal loads.

10 cl, 6 dwg

 

The invention relates to changing the length of the connection of the suction pipe with particulate channel of the ventilation device in the underground bottom-hole located between the fixed vent piping and tunneling harvester transmission or, respectively, an overhead conveyor mounted for movement on ahausen mechanism or frame.

From DE 3147471 A1 is known a method and a device for the continuous suspension of the vent pipe in a tunnel or underground mine. This is known to run out of drive ventilation pipe is continuously fed from the drive cable suspension cable, which is fixed over a continuous vent pipe on the roof of the reservoir to be ventilation of mine workings. Itself ventilation pipe may be suspended at such suspension cable through the anchor elements, in this famous run to compensate for different height between the upper side of the ventilation pipe and attachment of the cable can be provided for the drive of the cable as the cable deflecting roller or roller with rearrangement of height, and he may be under spring tension. Such a device is stationary stretches to the bottom so that on the basis of such a device according to the according to the accumulated length of the vent pipe and the accumulated length of the suspension cable, you can override a specific area. In mobile, towed and in particular with the United tunneling harvester devices should, as a rule, continuously to cover only specified, significantly shorter sections, known execution due to the multiple spring elements during strong shaking and vibrations of the machine can be a considerable move the vent pipe, in particular, in the height direction and in the lateral direction.

In DE 4310524 A1 shows and describes a buffer element for vent piping, which can be used in mining, respectively, during the construction of tunnels to create, in particular, between roaming in the longitudinal direction of the face harvester selective action and a stationary part of the ventilation pipe of the corresponding variable over the length of the connection. This vent pipe may be connected to the harvester of the electoral process in the joints of buffer elements can perform the appropriate suspension on the roof. When this buffer element contains a spiral vent pipe, and inside the spiral vent pipes are in tension spring, to prevent tipping of the ventilation pipe. Through such devices can be shut off with the ISM is accused length only relatively short sections.

The basis of the invention is the creation of a solid gasket vent pipe in the area between the tunneling machine and stationary conveyor device, which reliably eliminates bending under the action of the longitudinal load at constant movements forward and backward digging machine.

To solve this problem changing the length of the connection according to the invention is based on the above-mentioned type, essentially in that the compound contains suspended on the suspension cable spiral vent pipe, while the suspension cable stretched between two movable in the same direction support parts of the walking device, respectively, of the frame and the digging machine and sent at least by means of two deflecting rollers. Due to the fact that the connection consists of several sections and contains suspended on the suspension cable spiral vent pipe, it is possible to arrange such a spiral vent pipe in passing essentially rectilinearly area subject to the overlapping area, thus it is necessary in any case, coordination with different height position of the suction pipe and secured to the roof vent piping can be provided by another short and in this case going with projectors, the BOM section of vent pipe. This is another site should not be stretched or compressed to variable length connection so that in this case the danger of bending under the action of longitudinal load is reduced to a minimum, while between the two plots can also preferable to use rigid pipe. Thus, the change in length is provided by passing a straight line plot of the spiral vent pipe, and therefore it is enough to extend the suspension cable only in this partial area in the specified path offset. Such extendable in the specified path suspension cable should not be pulled out of the spring-loaded drive, and can, in particular, for a reliable perception of shaking to pull exactly the specified length between two anchor points, in this case, it is sufficient to pull the appropriate suspension cable between two movable in one direction support parts of the walking mechanism or, respectively, of the frame and the digging machine or, respectively, connected with tunnel harvester part, and to send at least two deflecting roller. In this direction, at least two deflecting roller provides the elongation in the same direction a suspension cable on the plot, in which the necessary suspension spiral vent pipe, this one is temporarily can accordingly, permanently fasten the ends of the suspension cable to the exact issue of the length of the suspension cable, which corresponds to the path of sliding the digging machine. Generally not required to be winding drum of excessive length, which is possible with the inhibition of feeding, and to pull exactly the length between the floating support parts, which corresponds to the path offset to account for the deviation. Exactly the specified length of the suspension cable allows, of course, easier controlled tension so that you can effectively counteract the sagging of the straight part suspended spiral pipe.

When this implementation is preferably carried out so that moved in the same direction support parts are formed is connected to the tunneling machine part and having a view of the slide bearing for the transmission or, respectively, of the bridge conveyor and/or subsequent part of the face conveyor. It is particularly simple manner, at least one portion of the load bearing cable may be formed element of the cable tension, or a piece suspension cable can be connected to the cable tension.

Thus, rejected on the stationary guide rollers on the frame subsequent transport fixture suspension cable, which can be the t to be stretched on the frame of the mobile bridge conveyor, allows you to extend the spiral vent pipe to the exact size that corresponds to the path of movement of the bridge conveyor. Thus, it provides a reliable passage of the spiral vent pipe in the path of movement of, for example, 5-6 m, it does not require a separate drive. The connection element of the bridge conveyor or, respectively, from sinking combine, as well as with the subsequent conveyor belt provides direct forced the drive to feed the necessary length of the suspension cable.

The more simple, the execution is so that the free end of the suspension cable is connected with connected with the electric machine connecting pipe suction pipe, while the suspension cable preferably is rejected by the first roller with essentially perpendicular to the support axis of rotation near the connection of the spiral vent pipe with a fixed vent pipe from the axis of the connecting pipe or, respectively, the axis of the spiral vent pipe and routed through other deflecting rollers adjacent to the tunneling machine end frame, respectively, of the walking mechanism to move in the longitudinal direction of the pole of the transfer or, respectively, of the bridge conveyor or, respectively, posleduyushego the gathering conveyor and secured it. This deviation suspension cable from its essentially the average position over the spiral vent pipe in a lateral position to return the rope to the opposite deflecting roller allows protected the direction of the cable in the frame or in the frame so that it is possible to avoid damage to the cable, and the limit pulling of the spiral vent pipe on essentially straight vent pipe provides a particularly simple conditions for the suspension and fixing the ventilation pipe. When this implementation is preferably carried out in such a way that the deflecting rollers are guided on the frame or rigidly connected with the frame part, and the maximum length of the extrusion spiral vent pipe is greater than or equal to the distance between the opposite in the longitudinal direction of the deflecting rollers, and most preferably the maximum length of the extrusion spiral vent pipes greater than or equal to the path of displacement of the supports of the transfer or, respectively, of the bridge conveyor on the frame or the corresponding previous frame path.

The corresponding rigid connection of the path of displacement or movement of the extrusion with an overhead conveyor is an easy way to implement due to the fact that the end of the transmission or, respectively, of the bridge conveyor USTC is connected with a connecting pipe spiral pipe.

In principle, an appropriate tension of the cable can be secured using simple lock for tensioning the cable. When increasing the length of the elongated spiral vent pipe and increasing the number of postponed contaminants may be desirable to increase the tension, thus the performance is preferably carried out so that one end of the suspension cable is connected to the support, at least through one tensioning cylinder with limit tension force. This restriction forces the tension with a tension cylinder is particularly simple manner can be done hydraulically or pneumatically.

Essentially rectilinear passage of variable length section of the spiral vent pipe eliminates the rollover vent pipe, which increases safety in the mine.

Below is a detailed explanation of the invention on the example of execution with reference to the drawings, where:

figure 1 shows a side view of the connection according to the invention between the ventilation pipe in fixed partial area of the shaft and the ventilation pipe in the area of the digging machine;

figure 2 shows an enlarged side view according to figure 1;

figure 3 shows an enlarged side view according to Fig 1 in the transfer area between the tunneling machine and fixed dosyaisim pipe or vent pipe;

figure 4 shows a top view of the image according to Fig 3;

figure 5 shows a section along the line V-V in figure 4;

figure 6 schematically shows a perspective view of deflecting elements or, respectively, the deflecting rollers for the load-bearing cable is not shown on Fig.6 spiral pipe.

In figure 1 the position 1 labeled continuous miner selective action, electric heads or rollers 2 which can be moved over the surface 4 of the bottom by means of the cantilever arm 3. Cut off or hemmed material is assumed loading ramp 5 and transferred to the conveyor, which is assumed to be loading ramp 5 and transferred to the conveyor, which conveys the material to the rear end 6 of the digging machine through the pavement or, respectively, the transfer conveyor 7 on still located in the drift of the conveyor device. Near the surface of the bottom through the suction pipe 8 and the rigid tubular section 9 is given absorbable material such as dust and air, and passes through a spiral vent pipe 10, which only serves to compensate the difference of the heights, in the other, a rigid tubular portion 11 of the ventilation pipe that is attached to the variable along the length of the plot in the form of a spiral vent pipe 12, which is stretched between this rigid section 11 of the frame 13. In the top view in figure 2, the same structural parts are denoted by the same positions, it is shown that the installation of the transfer conveyor 7 on the support 14, which in turn is mounted on sliding in the longitudinal direction of the carrier gear constructive part.

Shown in figures 1 and 2 implementation is illustrated using images in figure 3 and 4, while in figure 3 and 4 shows the suspension cable 15, which may be suspended adjustable along the length of the spiral vent pipe 12 on the respective elongated length. This position 26 marked tension lock, and the position of the 16 marked the corresponding tensioning cylinder for maintaining the appropriate desired cable tension. Suspension cable 15 is deflected inside the frame 13 by means of deflecting rollers and thence comes to the neighboring sinking combine, deflecting rollers 17 and 18, which are fixed on the frame 19. Rejected the return branch of a suspension cable 15 is connected to its free end near the support area 14 of the transfer conveyor with a carrier so that upon displacement of the slide, or, respectively, of the transfer conveyor in the direction of the arrow 20 in the same direction also extends the suspension cable 15 on the spiral vent pipe 12. Feedback branch between the support section 14 and the deflecting roller 18 is reduced in the nd same extent in which longer used for hanging branch of a suspension cable 15 between the frame 13 and the base section 21 on the tubular portion 11 of the ventilation pipe. The position of the deflecting rollers 17 and 18 is particularly clearly shown in figure 5, with visible support 21 in the ventilation pipe or section 11 of the ventilation tube, which is rigidly connected with the transfer conveyor and the end of the suspension cable 15. In the frame 19 gate transport devices 22 can be used a walking mechanism, while the frame is attached to the sole of the underground tunnel.

Figure 6 illustrates the flow of a suspension cable, because the spiral vent pipe 10 and the other closing the suspension cable constructive part that protects the suspension cable 15 from damage, not shown. Suspension cable 15, in turn, passes, proceeding from the support 21, via deflecting rollers in the zone of the frame 13 to both fixed to the frame of the guide rollers 17 and 18 and is rigidly connected with made in the form of a sled constructive part 23, which is the reference pin to the transfer conveyor. The return branch of a suspension cable 15 between the sled and the deflecting roller 18 at offset in the direction of the arrow 20 is shortened, while the rejected branch of the suspension cable 15 moves between the roller 17 and the frame 13 in the opposite direction, namely the direction of the arrow 24. After the new deviation suspension cable 15 extends between the frame 13 and the support 21 in the direction of the arrow 20 and correspondingly lengthened so that a straight line passing area of the spiral vent pipe is securely suspended between the tubular part 7 and the connecting part 25.

1. Device for sinking underground faces containing a continuous miner, a stationary conveyor device located between the tunneling machine and stationary transport device transfer or, respectively, the bridge conveyor is installed with the possibility of movement on ahausen mechanism or, respectively, the frame, and a ventilation device containing the suction pipe, fixed the ducting and variable length connection suction pipe with particulate channel of the ventilation device, characterized in that the variable length connection contains suspended on the suspension cable spiral vent pipe, while the suspension cable stretched between two movable in the same direction support parts of the walking mechanism or accordingly, the frame and the tunneling machine and sent at least by means of two deflecting rollers.

2. The device according to claim 1, characterized in that moved in the same direction is toward the supporting parts are formed is connected to the tunneling machine part and is made in the form of a sled support for the transfer or accordingly, the bridge conveyor and/or a part of the next gathering conveyor.

3. The device according to claim 1 or 2, characterized in that at least one portion of the load bearing cable formed element of the cable tension or connected to the element cable tension.

4. The device according to claim 1 or 2, characterized in that the free end of a suspension cable connected with connected with tunnel harvester plot vent pipe suction pipe.

5. The device according to claim 4, characterized in that the suspension cable rejected by the first roller with an essentially horizontal axis of rotation near the connection of the spiral vent pipe with a fixed vent pipe from the axis of the section of the ventilation tube or, respectively, the axis of the spiral vent pipe and is directed back through the rollers to the sinking of the harvester, and the suspension cable is directed through the other deflecting roller adjacent to the tunneling machine the end of the frame or, respectively, the walking mechanism to move in the longitudinal direction of the pole of the transfer or, respectively, of the bridge conveyor, or, respectively, the subsequent gathering conveyor, and secured it.

6. The device according to claim 1, characterized in that the deflecting rollers suspension cable is installed on the frame or on hard with is United with the frame part.

7. The device according to claim 5, characterized in that the maximum length of the extrusion spiral vent pipe is greater than or equal to the distance between the opposite in the longitudinal direction of the guide roller.

8. The device according to claim 5, characterized in that the maximum length of the extrusion spiral vent pipes greater than or equal to the path of displacement of the supports of the transfer or, respectively, of the bridge conveyor on the frame or the corresponding ahausen the mechanism frame.

9. The device according to claim 4, characterized in that one end of the transmission or of the bridge conveyor is rigidly connected with a plot of the spiral pipe.

10. The device according to claim 1, characterized in that one end of the suspension cable, at least through one tensioning cylinder with the restriction of the tension connected with support.
Priority:

29.09.2005 - claims 1 to 10.



 

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