DE7919871U1 - LIFTING BAR FOR THE TRANSPORT OF MATERIALS IN UNDERGROUND MINING - Google Patents

Description

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For the transport of material in underground operations are primarily Monorail monorails and walking beams are used consist essentially of rails

j I-profiles, which are attached to the hanging wall of the route

! The rails are movably supported by the trolleys. Become two cats

connected to the ends of the walking beams. The walking beams are motorized moving load trolleys arranged horizontally, which are deflected vertically downwards via chain sprockets at the ends of the lifting beams at the ends of which there are load hooks For hanging up containers or for picking up the material to be transported. Several lifting beams can be connected by connecting rods be tied together to form a train of material Material pulling by winches by means of pulling ropes or by diesel-hydraulic drive machines.

The load chains of the lifting beams are motor-driven, namely

through high-speed compressed air motors with corresponding transmission gears and transmission gears are built to be lightweight in order to keep the dead load low. They have been found to be are very prone to failure in rough mining operations.

The compressed air drives have recently been used to drive walking beams of the load chains replaced by hydraulic drives Hydraulic fluid is taken from a hydraulic system located at the workplace. The load chains are operated via transmission gears Driven by hydraulic motors. In other versions, they are moved by one or two-cylinder drives. All experiments have not yet gone to full satisfaction, there, conditionally Due to the hydraulic systems, the desired operational safety was not achieved. There were additional brakes, locks or other Safety elements necessary, which are also not always satisfactory work.

The present invention has set itself the task for to make the material transport more practical and, above all, more reliable in principle, monorail monorails with the walking beams According to the invention, the load chains should be self-locking Drive elements moved v / earth, mainly hydraulically

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Other energies are of course also possible. Locks, brakes or other safety elements are not required Drive the load chains with self-locking drive elements Self-locking worm gears are particularly suitable for driving the load chains. These can be at the ends or in the middle part of the lifting beam. It is also possible to use the load chains driven by self-locking gev / indespindles this can also be stored at the ends or in the middle part of the lifting beam Spindle drive by assigning a loose roller over which the load chains with the container raised and lowered the result is a double stroke on the load hook, which is otherwise usual in the center cantilevered chain strands, which often result in uncomfortable obstructions, fall away with this version, because the chain strand is immovable on Walking beam is attached.After another suggestion, it is possible to use the Moving load chains using self-locking rack and pinion gears with helical or helical teeth, also with this version the load chain is driven by a loose roller. The middle chain strand is also fixed immovably on the walking beam.

In another version with a self-locking drive Worm gears are provided with three horizontal chain strands that are guided over chain sprockets, the upper and lower The chain strand is firmly connected to one another by a connecting link. When the load chain is driven, the top and bottom move Chain strand on the same side, while the middle chain strand turns into is moved in the opposite direction and is guided freely through a groove in the connecting plate. This is also the case with this version The usual centrally projecting chain strand is no longer necessary. According to a further inventive proposal, those at the ends of the lifting beams are to be used stored reversible chain sprockets or drives with drive chain sprockets for the load chains individually or simultaneously steplessly can be adjusted by motor to the center of the lifting beam back and forth in order to transport material benches of different lengths can, whereby the adjustment is carried out by lifting spindle elements or the like, which can be self-locking. The drives of the lifting spindle elements can be arranged in the middle part or at the ends of the lifting beam According to a further feature of the invention, the self-contained

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inhibiting worm gear for driving the load chain, also for stepless motorized adjustment of the same to the center serve there and back. This eliminates the need for a separate adjustment drive. For this purpose the ends of the drive shaft are using Provided with rollers that can be moved lengthways on strips. A roller serves as a drive roller. She is through a clutch coupled to the drive while the drive chain sprocket of the load chain is switched off. The drive roller can be used to enlarge the Friction with the bar on the tread received a friction lining. The drive roller can also be designed as a gear to a to ensure compulsory movement on the bar designed as a rack. To prevent the drive from tilting when traveling lengthways To avoid this, a double guide lever is assigned to the worm housing, on which guide rollers are advantageously mounted v / earth, which are guided on the side cheeks of the lifting beam, the double guide lever also receives support rollers at its end, which Support yourself against the bars on the walking beam. Unintentional twisting of the worm housing is avoided in this way.

The lifting and lowering of the load chain with the load hook can be done according to a further feature of the invention in that this is wound or unwound on a chain winding drum. Around To ensure that the load chain is properly wound up, it is advantageously provided with spiral-shaped chain guide grooves.

The chain winding drum is also self-locking Worm gear driven. The central axis of the chain-winding drum can run perpendicular to the longitudinal axis of the lifting beam. It can also be arranged parallel to it. The version of a walking beam with a chain winding drum. Has the big one The advantage that the load chain has only one leg, since the otherwise usual central leg is omitted.

Show it: 1 Fig, 2 Fig. 3 Fig. 4th Fig. 5 Fig. 6th Fig. 7th Fig. 8th Fig. 9 Fig. 10 Fig. 11th Fig. 12th Fig. 13th Fig. 14th Fig. 15th Fig. 16 Fig. 17th Fig. 18th Fig. 19th Fig. 20th Fig. 21 Fig. 22nd Fig. 23 Fig.

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A monorail overhead conveyor with lifting beams according to the present invention is shown schematically in the accompanying drawing.

a lifting beam on the monorail overhead conveyor,

a walking beam with worm gear drive,

another walking beam with worm gear drive

a lifting beam with a threaded spindle drive,

another lifting beam with threaded spindle drive,

a lifting beam with rack and pinion drive,

a walking beam with three horizontal chain strands,

a lifting beam with spindle elements for moving

the reverse chain nuts,

a walking beam like before,

a cubbing beam like before,

a walking beam like before,

a cross-section through the lifting beam,

another cross-section through the walking beam,

a walking beam with a common drive for the

Load chain and longitudinal displacement,

a cross-section through the lifting beam,

another cross-section through the walking beam,

a lifting beam with drum drive for the load hook;

a cross-section

another walking beam with drum drive,

a cross-section

another cross-section,

a lifting beam with a transversely arranged drum drive,

a cross-section

On the hanging wall of the track (10) rails (11) are attached, which are used to move the trolleys (12) and (13). On the latter If the lifting beam (14) is attached in an articulated manner, material containers (17) are lifted from the floor and closed by means of load chains (15) and (16) move the storage bins. The lifting beams (14) are put together to form material pulls by means of tie rods (18).

The walking beam consists essentially of two side by side Cheeks (Fig. 12) and (20) are bars (21) and (22) attached, which are used to support and move the reverse chain

nuts (23) or worm gear (24) are used. In the case of the lifting beam (14) according to FIG. 2, a self- Inhibiting worm gear (24) is provided for actuating the load chain (15) and (16) with the load hooks (25) and (26). On the Worm gear (24) is mounted on a chain sprocket (27) which drives the load chains (15) and (16). The worm gears (24) are stored on the strips (21) and (22) of the cheeks (19) and (20). They can be fixed, or manually to the center and back misplaced v / earth. The load chains (15) and (16) can be driven individually or simultaneously. This makes it possible to use any To use load chains independently of each other for pulling loads. The worm gears (24) are advantageously hydraulically grounded driven. Other drive media are possible. In Fig. A walking beam is shown in which the self-locking worm gear (24) are fixed to the cheeks (19) and (20) approximately in the middle of the lifting beam (14). Through the chain nuts (27) the load chains (15) and (16) are driven and the chain strands » with the load hooks (25) and (26) over the chain sprockets (23) vertically towards uti-cen. The chain nuts (23) can also manually on strips {21) and (22) to the center and back be moved. The lifting beam according to Fig. 4 is characterized by the drive of the load chains (15) and (16) by means of self-locking Threaded spindles (28). On the cheeks (19) unc (20) are the chain sprockets (29) mounted in the strips so as to be longitudinally displaceable. For this purpose, on the bearing pins (30) of the chain sprockets (29) fork-shaped guide pieces (31) mounted which have an internal thread (33) at the upper end. By turning the threaded spindle (28) the chain sprocket (29) is moved back and forth by the motor (34). One chain strand of the load chains (15) or (16) is at (35) hinged on the lifting beam (14). It is further deflected vertically downwards via the chain sprocket (29) and chain sprocket (36). the Chain sprockets (29) act as a loose roller, as a result of which the stroke on the load hooks (25) and (26) is doubled. The arrangement of the load chains (15) and (16) have the consequence that the otherwise usual centrally projecting chain strands are omitted. The drive motors (34) for the threaded spindles (28) can be arranged approximately in the middle. When lifting the load, the threaded spindles (28) are subjected to tensile stress. They are mounted on the one hand on the drive motor (34) and on the other hand in bearings (36). The drive motor (34) can also, as

Fig. 5 shows that the lifting beam (14) is supported at the ends. The threaded spindles (28) are grounded when the load is lifted Stressed.

Fig. 6 shows a lifting frame in which the load chains (15) and (16) with the load hooks (25) and (26) are driven via a self-locking rack (37) with helical or helical teeth. The drive motor (38) with gear (39) moves the rack (37). At the same time, the loose roller (40) stored on this is shifted. One end of the load chains (15) and (16) is firmly attached to the lifting beam (14) at (41). The continuation of the same takes place vertically downwards via the loose roller (4-1) and KettennuiB ^r 42). This version also doubles the lifting hook stroke. The chain strands protruding in the middle are also omitted here.

In Fig. 7 a lifting beam with load chains (15) and (16) is shown, in which three chain strands are provided, which run somewhat horizontally to each other. They are driven by self-locking worm gears (24). The upper and lower chain strand are firmly connected to one another by connecting straps (43). The load chains are guided vertically downwards via chain sprockets (44), drive chain sprockets (27) and reverse chain sprockets (45) with load hooks (25) and (26). When driving the load chains, ie when lifting and lowering the load hooks (25) and (26), the upper and lower chain strands move at the same time. The middle chain strand moves towards each other, it is passed through the connecting straps (43) f * ~ ei. Also in this embodiment fall d ^{^} otherwise üolir.hen continued centrally projecting chain strands.

In the case of the walking beams (14) according to FIGS. 8, 9, 10 and 11, the worm gears (24) mounted on the walking beam ends are connected to the drive chain sprockets (27) or the reversible chain sprockets (23) for the load chains (15) and (16) individually or simultaneously, independently and continuously Center adjusted back and forth by motor. According to FIG. 8, the drives for this purpose are mounted centrally on the walking beam (14). A lead screw (46), which is driven by the drive motor (47) and is mounted in bearing (48), has an internal thread (49) on the Worm gear (24) in connection and moves when the Threaded spindle (46) the drive (24). In Fig. 5 the drive

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motor (47) for the Gev / indespindel (46) to adjust the Worm gear (24) arranged at the end of the walking beam (14). According to FIGS. 10 and 11, the drives (24) have a drive chain socket (27) for the load chains (15) and (16) stored in the middle part of the lifting beam (14). The reverse chain nuts are stored at the ends of the same (23). They can be moved back and forth to the center by means of threaded spindles (46), namely by means of a drive motor (47). Fork-shaped guide pieces (51) are mounted on the bearing bolts (5o) of the reverse chain sprockets (23) and have an internal thread at the upper end (52), in which the threaded spindle (46) engages. By turning the same, the reverse chain sprocket (23) becomes centered moved there and back. According to FIG. 10, the drive motors (47) for the threaded spindle (46) are in the middle part, according to FIG. 11 arranged at the ends of the walking beam (14). Bearings (48) are used to support the threaded spindle (46).

The worm wheel shaft (53) is provided at the walking beam according to FIGS. 14 to 16 at its ends with rollers (54) and (55), which for Serve moving the drive (56) to the center and back. They are supported on ridges (57) and (58) on the cheeks (59) and (60) of the lifting beam (14) are attached. The drive (56), designed as a self-locking worm gear, drives the drive chain socket (61) for the load chain (15) with load hooks (25). He but can also be used to drive the roller (55), to drive the drive (56) longitudinally on the strips (57) and (58). It is therefore designed as a drive roller and can be provided with a friction lining on the running ring to increase the friction. The drive (56) is through the coupling (62) with the drive chain socket (61) for lifting and lowering the load chain (15) or coupled to the drive roller (55). | To prevent the drive (56) from sliding or slipping on the strips (57) | To avoid this, the drive roller (55) can be designed as a toothed wheel (63) which engages in the rack (64) formed bar. The roller (55) can also be a separate gear be assigned to move the drive (56). About a tilt To avoid the drive (56) during longitudinal travel, a double guide lever (65) is attached to the worm housing (56) Ends of guide rollers (66) are mounted, which are against the cheeks Support (59) and (60). Support rollers (67) are also mounted on the double guide levers (65), which press against the strips (57) and (58)

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prop up. This prevents the drive (56) from rotating unintentionally.

17 and 18 show the execution of a walking beam, at which the lifting and lowering of the load chain (15) with the load hook (25) takes place in that it is placed on a chain winding drum (68) is wound up or unwound. The upper end of the load chain (15) is firmly connected to the drum (68). The latter receives Spiral guide rollers (69) for the positive guidance of the load chain (15) during winding and unwinding. The self-locking Worm gear (70) is used to drive the drum (68). The drive shaft of the worm gear (70) receives at the ends Pin (71), which is used for storage and longitudinal displacement of the same Bars (72) and (73) on the cheeks (74) and (75) are used. The longitudinal displacement of the drive (70) on the strips (74) and (75) can done manually. To lock the drive (70), the pins (71) are provided with flattened areas which are inserted into corresponding grooves in the strips (72) and (73) click into place.

The drive (70) can also be moved to the center and back In this embodiment, FIGS. 19, 20 and 21 are motorized, also by the drive (70) of the chain winding drum (68). The drive (70) is controlled by the coupling (62) for lifting and lowering the load chain (15) or with the drive wheel (55) coupled to move it in the longitudinal direction.

The drive wheel (55) can also be designed as a gear (63) and move the drive (70) via the toothed rack (64). Double guide levers (65) with guide rollers (66) and support rollers (67) at the ends of the same are used for proper movement and against unintentional rotation of the drive (56). The central axis of the chain-open drum (68) runs transversely to the central axis of the lifting beam.

According to FIGS. 22 and 23, the central axis of the chain winding drum (68) also run parallel to the walking beam axis. The structure and execution is otherwise as described above. Of the The drive (70) with the chain winding drum (68) rests on bars (77) by means of pins (76) and can be shifted manually. But he can also like. previously mentioned can be moved by motor.

Claims (1)

• • a · t · ·· ··· Lifting bar For the material transfer_inj'_Ujjt | rtag $ _- Seiab & u [\ * Protection claims 1.) Lifting beam for the transport of material on monorails in underground mining, which is connected to trolleys, which are mounted in rails made of I-profile, which are attached to the hanging wall of the track, is movable, with the lifting beam has two horizontally arranged load chains that are motorized bent and deflected vertically downwards via chain sprockets at the ends of the walking beam the vertical chain strands are provided with load hooks, disnen for hanging up containers or loads, characterized in that the drive of the load chains are designed as self-locking drive elements, which are mainly driven hydraulically. 2 ^ Ht ihhal UOn narh üncriT »! ir * h Λ rlarli ιτ · γ · Η ηοΙ / αηπ7θί ηΗηοΊ "rleR Ηΐ ο ασΊ hc + hommonrJen fln Drive elements for the two load chains can be controlled separately D that run simultaneously, but independently of one another. 3.) Walking beam according to claim 1 + 2, characterized in that the self-locking Drive elements for the load chains designed as self-locking worm gears are. it.) Walking beam according to claim 1 + 2, characterized in that the rope-inhibiting Drive elements for the load chains are designed as self-locking threaded spindles are. 5.) walking beam according to claim 1 + 2, characterized in that the self-locking Drive elements for the load chains are designed as self-locking rack and pinion gears with helical or helical teeth. G.) lifting beam according to claims 1-3, characterized in that the self-locking Worm gear to drive the load chains or the reverse chain sprockets on the Are mounted immovable or independently longitudinally displaceable at the end of the lifting beam. 7.) lifting beam according to claims 1-3, characterized in that the self-locking Worm gear for driving the load chains in the middle part of the walking beam are tightly mounted next to each other and the chain sprockets at the ends of the Can be longitudinally displaceable lifting beam. 8.) Hubbalksn according to claim 1, 2 and h, characterized in that the drive motors for the rotation of the self-locking threaded spindles for the movement of the load chains are mounted in the middle part of the lifting beam and the threaded spindles are subjected to train during the load stroke. 9.) Walking beam according to claim 1, 2 and k, characterized in that the drive motors for the rotation of the self-locking threaded spindles for the movement of the load chains are mounted at the ends of the walking beam and the threaded spindles are subjected to pressure during the load stroke. 1D.) Lifting beam according to claim 1, 2 and 5, characterized in that the DSS, the movement of the load chain by SElbsthemmsnde rack gear, ceren Zahnstangsn motor horizontally back and forth moved and having the inner end thereof, a co-moved idle pulley (sprocket), the sprockets on the ends of the lifting beam can be fixed or horizontally movable. 11.) walking beam according to claim 1, 2, 8, 9 and 1G, characterized in that a chain strand the load chain is attached to the lifting beam and the rest of the Load chain with load hook via a movable idler roller (chain nut) and reverse chain nut at the end of the lifting beam is carried out vertically downwards »which results in a doubling of the load hook stroke (height adjustment). 12.) Walking beam according to claim 1, 2, 3 and 7, characterized in that the load chains each have three horizontally stacked coastal strands that are deflected via chain sprockets, whereby the upper and lower KsttensträngE are firmly connected to each other by usr tie straps, while the middle Chain strand through grooves in this, carried out freely. 13.) walking beam according to claim 1, 2 and further claims, characterized characterized in that the reverse chain sprockets arranged at the ends of the walking beams or drive elements with drive chain sprockets for deflecting the end of the load chain with load hook individually or at the same time steplessly to the center and back can be adjusted by motor. 1 * t.) Walking beam according to claim 1, 2 and 13, characterized in that for adjusting the reverse chain sprockets or drive elements of the load chains, lifting devices serve, which can be designed to be self-locking. • tit ·· l.ttll · ·· 15.) Walking beam according to claim 1, 2, 13 and Ι * », characterized in that the drive motors the lifting spindle elements stored in the middle part of the lifting beam are. 16.) walking beam according to claim 1, 2, 13 and 1 * t, characterized in that the to ^; Drive motors of the spindle elements are mounted at the ends of the walking beam. , 17.) Hubbalken according to claim 1, 2 and 3, characterized in that the self-locking worm gear with the drive sprocket for actuating the load chain with the load hook also for stepless motorized V / creation of the same for Middle serves back and forth. 18.) walking beam according to claim 1, 2, 3 and 17, characterized in that the self-locking Worm gear by means of runners on strips on the walking beam lengthwise i is movable, uobei a roller serves as a drive roller and with the drive is coupled while the drive Hettennuß is switched off. I 19.) lifting beam according to claim 1, 2, 3, 17 and 1S, characterized in that the I Moving the worm gear serving roller on the running ring a friction lining having. 20) Lifting bar according to claim 1, 2, 3, 17 and 18, characterized in that the check \ drive-roller is designed as a gear wheel that is supported on a recess formed as a rack bar and engages. 21) Hubbalkan according to claim 1, 2, 3, in 17 and 18 characterized in that the arrival%-drive roller is associated with a gear which engages in a separate rack. » 22.) lifting beam according to claim 1, 2, 3, 17 and 18, characterized in that the I Very jacket housing F guide lever for longitudinal guidance and double support of the same has, which are advantageously provided at their ends with guide and support rollers will. 23.) Lifting beam according to claim 1, 2 and 3, characterized in that the lifting and the Lower the load chain with the load hook by winding and unwinding the same a chain-on-winding-Rülle takes place through a self-locking worm gear is driven. -U- 24.) Walking beam according to claim 1, 2, 3 and 23, characterized in that the chain Aufudckel drum spiral-shaped chain guide grooves to accommodate the Has load chain. 25.) walking beam according to claim 1, 2, 3, 23 and 24, characterized in that the Central axis of the chain winding drum perpendicular to the longitudinal axis of the lifting beam runs. 26.) Walking beam according to claim 1, 2, 3, 23 and Zh, characterized in that the central axis of the chain winding drum is arranged parallel to the longitudinal axis of the walking beam.