CS208168B2 - Mine reinforcement - Google Patents

Abstract

1470436 Advancing mine roof supports GEWERKSCHAFT EISENHUTTE WESTFALIA 17 April 1974 [19 April 1973] 16762/74 Heading E1P In a mine roof support assembly comprising at least one hydraulic prop 12 mounted between a floor sill 10 and a shield composed of a main wall 11 and L-shaped side walls 50, 51 means are provided such as an articulated ram for moving the shield in relation to the sill and means also provided for permitting at least one of the side walls 50 to move relative to the main wall 11. The side wall 51 is relatively fixed to the main wall 11 by a rod 63 abutting a bracket 54 by means of a stop 66 and a sleeve 65. The movable side wall 50 has a rod 57 slidably mounted in a bracket 54 and urged in the direction S by a spring 59 until restricted by a stop 60; the rods 57, 63 being pivotally connected to a ram 55 for relative adjustment of the shield portions 50, 11. Over tilting of the roof canopy 23 is prevented by an anchoring cable [27], see Fig. 1 (not shown).

Description

CZECHOSLOVAK SOCIALIST REPUBLIC (19) DESCRIPTION OF THE KPATENT INVENTION 208168 (11) (B9)) (22) Registered 19 04 74 (21) (PV 2821-74) (32) (31) (33) Priority from 19 04 73 (P 23 19 909.9) Federal Republic of Germany (40) Published 31 12 80 (51) Int. Cl.3 E 21 D 23/00 OFFICE AND DISCOVERY OFFICE (45) Issued 15 04 84 (72j

Author of the invention BECKER KUNIBERT ing., WERL, PLEVAK LUBOMÍR ing., LÍNNEN / / HORSTMAR, HOLKEN NORBERT, ALTLIJNEN and WO-JACZEK EGON ing., BOCKUM-HOVEL (NSR) (73)

Patent holder GEWERKSCHAFT EISENHUTT WESTFALIA, ALTLUNEN (NSR) (54) Mining reinforcement 1

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mine reinforcement consisting of a sleeper sleeper with a progressive roller and a cantilevered shield, which is hinged to the back end of the pastry sleeper and fitted with hinged hydraulic props. at least two disposed adjacent to each other perpendicular to the direction of operation, wherein a double-acting hydraulic corner cylinder is articulated by the shield supports and by the carburettor. Mine supports of the above type are already known in many transformations. In the case of known mine supports, the gable shield, a non-articulated shield and shielded officers, is either attached to the rear cone sleeper or to the foundation plate, which is carefully connected to the carcass. It has also been proposed to connect a baffle shield to a gable support that is hingedly connected to the scaffold sleeper. In this case, a hydraulic corner cylinder may be inserted between the seed sleeve and the shield support, which may be provided as a shelf shield, under which the pressure of the sheath support and thus the sheath may be deflected to such an extent that the sheath shield may be Immediately after moving the machine to the face pillar, it was pushed forward 2 without moving the entire mine support. In this type of mine reinforcement, the reinforcement can be carried out without delay immediately after the continuing failure.

It is also known to arrange a spring loaded cover plate on the sides of the shelving on the sides, which seal the interstices with adjacent reinforcement shields. Furthermore, it is known to provide water beams or other conduits on the conveyor on the face side, which lead through the mine reinforcement to the process and compare it in the direction of the approach. The use of leveling rollers is also known for comparing frames or tripods. The present invention is based on a mine reinforcement of the known type and is intended to provide such a mine reinforcement in a robust and operationally reliable design that allows, as far as possible, a sufficient space to cover the face of the wall and further reliably relieve and reinforce the mine reinforcement. heavy descent.

SUMMARY OF THE INVENTION The invention solves the problem by providing a mine reinforcement consisting of a pastry sleeper with a walk-through roller and a cantilever shield carrying a ceiling shield and articulated with a shield support articulated to 208168 208168 3 4 by the rear end of the sleeper and provided with a cotter. an articulated hydraulic corner cylinder is articulated between the shield supports and the sleeper sleeve, wherein the supporting hydraulic cylinder is supported by an articulated hydraulic link which is at least divergently arranged side by side perpendicular to the direction of operation; and a sheeting device comprising a side wall with a horizontal arm covering the gap between the intermediate side wall and the cantilever shield, to a comparative device arranged by a fret sleeper and consisting of two-conductor types captured on a common bridge member and guided in and a stepping roller is received between the guide rods by a single connecting member connected by a coupling member to the conveyor or its superstructure.

Accordingly, the measure according to the invention confuses the effect that both the conduit and the alignment of the bottom reinforcement are carried out in the place of rest by means of a comparative device located on the one hand, and in the places of the ceiling by means of a support and shoring device arranged on the cantilever shield and adapted to the crevice the shields of the adjacent parts of the mine support support each other and align themselves.

According to a preferred embodiment of the invention, the steering rod 1 is a circular or flat spring. This measure according to the invention ensures that both the lower track guide and the upper gate of the cantilever shield are limited in spring, so that parts of the mine reinforcement can even become uneven during strong descents can be reliably shifted without danger.

In order to achieve a certain degree of adaptation to the unevenness of the surface and to allow the movement between the conveyor and the semi-molar reinforcements to become loose, in a further preferred embodiment of the invention, the guide rods in the guide elements are guided movably in the vertical plane.

According to a further preferred embodiment of the invention, each guide rod is associated with twin-rod organs arranged behind it in the direction of the process, whereby the vertical guiding of the leading guide is greater than the similar clearance at the rear guide.

According to another advantageous embodiment of the invention, the guide rods are connected to the bridge member only movably in the vertical direction.

According to a further preferred embodiment of the invention, the process cylinder has an articulated bolt, which is guided in the guide in the direction of progress in the elongated aperture of the fork-like extension on the bridge member.

According to a further preferred embodiment of the invention, the bridge member is connected to the coupling member pivotably about a pin with a vertical axis.

According to a further preferred embodiment of the invention, the supporting and sheeting device is provided on the side wall with a hydraulic leveling cylinder mounted on the cantilever shield. By this hydraulic balancing roller, the parts of the mine reinforcement can advantageously be compared to each other if they are displaced or folded in the case of stronger descent.

According to another preferred embodiment of the invention, a rigid side wall is disposed on one side of the cantilever shield, while a resilient and retractable side wall is disposed on the other side of the cantilever shield.

According to a further preferred embodiment of the invention, the rigid side wall is arranged; to release and fasten in the extended position.

According to a further preferred embodiment of the invention, the hydraulic leveling cylinder is inserted into a guide rod connected to the side walls and supported on the guide rails arranged on the underside of the baffle shield.

According to another advantageous development of the invention, the side wall and the rigid side wall are each provided with at least two guide rails, the comparator roller being connected between the guide rods of the two side walls.

According to a further advantageous development of the invention, the movable side walls of the guide pins are detachably connected by a stop of the locking element, in particular a stop pin, in a fully extended position.

According to a further preferred embodiment of the invention, it is found to be stackable. at the end of the cover, a shield-shaped shield support is connected over the joint and the end of the windshield shield provided with side wall plates on the sides.

According to a further preferred embodiment of the invention on the sleeper sleeve, the upwardly projecting laterally extending upwardly fixed portions are fixed in the rear part.

According to a further preferred embodiment of the invention, the side walls arranged on the cave are provided with angled recesses along the cutting edges. An exemplary embodiment of the invention is shown in the accompanying drawings, wherein in Fig. 1 a cross section of a mine support according to the invention is shown. 2 is also a side elevational view of the mine support line shown in FIG. 1; FIG. 3 is a plan view of a second sleeper and a lower mine support line according to FIG. 1, FIG. 4 shows the workpieces according to FIGS. 1 and 3 in the direction of the arrow IV of FIG. 1a in FIG. 5, the cross section of the mine reinforcement according to the line 5-5 of FIG. in the drawings, the sleeper sleeve 10, as well as the bolt shield 11, is supported at least by the uprights 12 which are standing by one another. The hydraulic struts 12 are articulated to the initial sleeper 10, or to the shank, by ball joints 13, 14 11. The shield support 15 is formed as a base shield and is articulated by the hinge 16 with the end of the sleeper 10 at the loading end and through the hinge 208168 31 with the end of the landing shield 11 on the load side.

Between the sleeper 10 and the shield 15, a double-acting hydraulic cylinder 18 is mounted, which is attached to the bearing bracket 20 by the articulated bolt 19, while the piston rod 21 is connected to the shield support 15 by the joint 22.

It will be appreciated that when inserting and extending the double-sided roller 18, the shield support 15 is deflected around the hinge 16, with the hinge shield 11 being moved in the direction of the face pillar 25 or in the opposite direction. The pleats 12 arranged between the initial sleeper 10 and the pitched shield 11 follow this movement during extension or folding, changing its inclination towards the sivisicle.

At the front end of the cave shield. 11, a ceiling shield 23 is mounted in a hinge 24 with a shank parallel to the face pillar 25a and is mounted in the manner of a two-legged carrier so as to tilt with its end on the side of the face pillar 25 under gravity in the direction of arrow 26. to prevent undesirable tilting of the ceiling shield 23 and to ensure that the ceiling shield 23 is positioned approximately horizontally to support the ceiling in each setting according to the tensile strength, the truss member, e.g. 27, which is supported at one end by a pin 28 on the ceiling shield 23, wherein the pin 28 is arranged on the side of the recess 24 facing the cave space. The haul rope 27 is a cd chip 28 guided by a hole. 29 in the windshield shield 11 and the guiding organ 30 to the bottom side of the windshield shield 11 and then along the windshield shield 11 to the rear, where at least one of the other is led downwardly at the shield support 15; The second end of the pulling rope 27 is attached at a location 32 of the mounting bracket 20.

To secure the ceiling shield 23 with respect to the pillar 25, the corner cylinder 18 is loaded in the direction of insertion. As a result, the shield support 15 is deflected around the joint 16 towards the face of the face, and at the same time the inclination of the uprights 12 by means of the windshield shield 11, which is entrained in the deflection, changes. The deflecting shield 11, which is supported by the uprights 12 loaded in the direction of extension, brings the shield 23 into contact with the face pillar 25. When the mine support is settled, the roller cylinder 18 is hydraulically locked by closing both of its work cavities. It is advisable to provide these working cavities with overpressure protection to prevent overloading of the joint pin 17.

Above the sleeper sleeve 10 there is a double-acting hydraulic advance cylinder 35, whose piston rod 36 is connected by a hinge 37 to the bearing bracket 20. The hydraulic advance cylinder 35 is an articulated blade 38 inclined to my sieve member 39 which forms part of the inlet guide (o! The bridging member 39 has in the middle a fork 40, whose forks are provided with horizontal longitudinal apertures 41, in which they are guided by connecting pins 38. The bridging member 39 is in the central part connected to the connecting member 42 by a proximal articulated member. the pivot 43 having a vertical axis and having limited mobility, wherein the deflection angle to the edges is in the range of 5 to 8 °, the coupling member 42 is in the form of a barb which is detachably connected to the T-shaped connector bar 44o. the conveyor 45 on the loading side.

At each end of the bridge member 39 ', a flexible guide rod 46 is connected by an articulated pin 47 rotatably about a horizontal axis such that the guide members 46 are limited to the bridge member in the vertical direction. The two rods 46 are each guided in two guide members 48, 49 of the sleeper 10. The guide members 48, 49 ' are formed as conduits, which are provided with guide holes piro through the guide rods. that the guide holes of the front guide members 48 have a relatively large vertical clearance and the guide holes of the rear guide bodies 49, on the other hand, have only a slight vertical clearance. The dental conveyor 45 and the guide rods 46 connected to it with the bridge member 39 can thereby perform vertical movements relative to the starting sleeper 10 and thereby adjust the irregularities of the boring.

For the progress of the face conveyor 45, the hydraulic access cylinder 35 loads the ejection area so that the conveyor 45 slides over the bridge member 39 and the coupling member 42 in the direction of the arrow R against the face pillar 25 after the connecting pin 38 of the hydraulic transfer cylinder 35 has moved over up to a stop at the front end of the longitudinal opening 41 of the bridge member 39. The clearance defined by the longitudinal opening 41 allows the deflection of the face conveyor 45 as the coal plow passes. The toothed conveyor 45 is otherwise held by the guide rods 46 for deflection during descent. The conducting rods 48 are guided and supported in the guide members 48.

For the mine reinforcement procedure, the process roll 35 is loaded in the insertion direction, so that the sleeper sleeve 10 is moved in the arrow R direction and is guided by the guide rods46. The guide rods 46 have both a guide and a comparative function.

As can be seen in particular from FIGS. 4 and 5, the bolt reinforcement according to the invention has a supporting and sheeting device at the cave-shaped screen 11. Side walls 50, 51 are arranged on the curtain shield 11 made of a rigid housing, extending laterally over the horizontal arms 52 of the shield 11. In the corners, the side walls 50, 51 are formed as sheet-shaped plates.

Claims (16)

208168 7 8 currency. L, the recess 33, thereby allowing the initiation forces to eventually act upon the mioiano near the orifices of the water-bearing arms 32 supported by the orifice 11 or directly on these parts of the water-limiting arms 52, but not in the recesses 53. Guide members 54 formed as guide blocks are fastened to the lower side of the bolt shield. In each of the two guide rails 54 arranged in each case, a rod assembly is provided with a reference cylinder 55 connected therewith. The two leveling rollers 55 are each a hinge pin 56 of the guide pin 57 which is slidably mounted in the left guide member 54 and is mounted on the inner side of the side wall 50 by the cap 58. A helical spring 59 is provided on the guide pin 57 and is supported by at the end of the guide 54 and the other end of the guide 58 of the guide pin 57, it attempts to laterally extend the side wall 50, that is, in the direction of the arrow S. The maximum displacement is defined by the stop of the pin 60 guiding member 54. a pivot pin 62 is attached to another pivot pin 63 which is slidably mounted in the right guide member 54 and the attachment 64 fixed inwardly to the side wall 51. A sleeve 65 is provided on this further guide pin 63 which forms a sidewall support 51 with respect to the right guiding member 54. In another guiding pin 63, a locking pin 66 is provided which secures the post of the guide pin 63 with respect to the right-hand guide 54 from the left. Thus, the side wall 51 is firmly supported on the windshield 11. The lateral extension of the side wall 51 can be adjusted by varying the length of the housing 65. In the bowed reinforcement, the rigid sidewall 51 is on the side of the reinforcement lying in the inclination, while the side wall 50 is extendable by the spring force 59, it is on the underside of the reinforcement lying downward. That is, the resilient side wall 50 of the mine reinforcement is provided with a rigid side wall 51 which is inclined downward. The extended side walls 50, 51 thus close the gap between the adjacent mine shields 11 of the mine support. The mobility of the extendable side wall 50 in the direction of the arrow S is determined by the stroke of the comparator cylinder 55 which is normally depressurized. It will be appreciated that the partial-half reinforcements support each other on the side walls 50, 51, are aligned and guided, so that, at the same time as the alignment: and the guide at the point of origin, the alignment at the points of the ceiling occurs: the folding pins 60 are removed and the leveling rollers 55 are loaded in the extension direction. Since the resiliently displaceable side wall 50 is supported on a rigid side wall 51 of the mine reinforcement which is inclined downward, the respective portion of the mine reinforcement is aligned or the eventual incline is raised. The leveling rollers 55 can also be hydraulically locked in any position of extension of the side walls 50, 51; a mounting wall 50 in a respective desired position of the extension. Furthermore, it is possible to secure the working cavities of the comparator cylinder 55 by means of pressure valves such that the side walls 50 are pushed into place at a preset side pressure. Also, a hydro-pneumatic reservoir can be connected to the pressure working cavities of the comparator cylinder 55 so as to allow for the flexible insertion of the crimping cylinder 55 and thus the extendable side walls 50. In this case, the use of a spring 59 can be omitted. 1 and 4, the shield supports 15 are also provided with side wall plates 70 which are offset inwardly against the side walls 50, 51 of the sheath 11, and the side plates 71 protruding in the rear part on the initial sleeper 10 can be arranged firmly with the wall plates 70. PRIOR ART A mine reinforcement consisting of a pastry cutter with a progressive roll and a cantilever bearing a ceiling gable and a deeply embedded: with a gable support articulated at the rear end of the sleeper and provided with hinged hydraulic posts that are in number in addition to the iseibe perpendicular direction of rotation, a double-acting hydraulic horn is connected between the shield supports and the sleeper, characterized in that a support device is provided on the side of the helical shield (consisting of a sidewall (50, 51) with a horizontal arm (52) covering the gap between this side wall (50,51 and the cove shield) (11), and of the invention provided on a pastry (10) and consisting of two guides rods (46) captured on (co-branded member (39) and guided in the guides) the sleeper sleeves (48, 49) of the sleeper sleeve (10) in the direction of travel, wherein between the guiding rods (46) the sleeve roller (35) is engaged by the bridging member (39) connected by the coupling member (42) to the conveyor (45) or its superstructure. 2. Lower reinforcement according to claim 1, characterized in that the guide bars (46) are circular or flat springs. 3. A mine support according to claim 1 or 2, characterized in that the guide rods (46) are guided in a vertical plane in the guide means (48, 49). 9 10 208168 4. The mine support according to claim 3, characterized in that each guide rod (46) is associated with the guide rails (48, 49) arranged in the gray direction of the guide, the vertical guide of the leading guide (48) being greater than the same backlash guide clearance (49). 5. A mine support according to any one of claims 1 to 4, characterized in that the guide rods (46) are connected by a bridge member (39) only in a movable direction. 6. A mine support according to claim 1 or 5, characterized in that the post-roll cylinder (35) has a hinge pin (38) which is inserted into the elongate aperture (41) of the fork extension (40) on the guide in the direction of travel. • a mute member (39). 7. A mine support according to any one of claims 1 to 6, wherein the bridge member (39) is connected to the vertical axis by a connecting member (42) of a pivotable pin (43). 8. The mine support according to claim 1, characterized in that the supporting and shoring device is provided on the side wall (50, 51) with a hydraulic alignment roller (55) attached to the wedge shield (11). 9. A mine reinforcement as claimed in claim 1, wherein a rigid side wall (51) is disposed on one side of the cantilever (11), while a resiliently retractable retractable side wall (50) is provided on the other side of the cave (11). 10. The mine support according to claim 9, wherein the rigid side wall (51) is arranged to be released and secured in the extended position. 11. A mine reinforcement as claimed in claim 8 or 10, characterized in that the hydraulic comparator cage (55) is connected to a guide rod connected to the side walls (50, 51) and supported on the guide members (54). on the underside of the cave-in shield (11). 12. A mine reinforcement as claimed in claim 11, characterized in that the extendable side wall (50) of the same side wall (51) each has at least two guide pins (57, 63), wherein the alignment roller (55) is connected between the guide bars of both side walls (50, 51). 13. A mine reinforcement as claimed in claim 12, wherein the guide pins (57) of the extendable side wall (50) are detachably connected by a stopper of the locking member, in particular the stopper (60), in the fully extended position. 14. A mine support according to any one of claims 1 to 13, wherein an articulated shield support (15) provided on the sides with lateral sides is connected to the base end-end sleeper (10) via a joint (16) and a base end of the caving shield (11). wall plates (70). Mine reinforcement according to clauses 1 to 14, characterized in that upwardly extending side plates (71) are fixedly fixed at the rear part (10) in the rear part. 16. A mine support according to any one of claims 1 to 15, characterized in that the side walls (50, 51) provided on the cantilever shield (11) are provided with rectangular peripheral recesses (53) in the form of longitudinal edges. 3 sheets of drawings Severografia, n. P., Plant 7, Most