DE2222591A1 - Trolley with double pulley system for cranes, loading bridges or the like - Google Patents

Description

PATENT Attorney DIPL-INQ. JOACHIM STREET

44S HANAU - »CJMERSm 1» · POSTBOX TO · TEUtOiOJ · TELEQRAMME: HANAUPATENT ■> TElEXi 41147 «P« l

POTAiM S.A, 8th time 1972 ChevHty Larue (VaI de Marne) Str / Ad - 10 742 France

Trolley with double pulley for cranes, Loading bridges or the like

The invention relates to a trolley or a load distributor with double pulley for a load, bemaschlne, for example a crane or a loading bridge.

It is known to provide such a vertical shifter with a first set of bottle pulling rollers, which is connected via a lever I to a second set of bottle pulling rollers of the load hook. It is also known that the number <ϊβγ ropes between these two sets of pulleys can be changed.

In the meantime, when changing from one operating mode, In another operating mode, for example when changing from simple to double pulley or back. Any change can be made by hand, which is generally right difficult and which in any case a longer conversion

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phase dependent. In which the lifter cannot work.

It is the object of the present invention to keep these nights to report and a completely self-sufficient but simple one To make change of the operating modes available. This object is achieved according to the invention in that the slide consists of a rest slide and a slide, each of which has a set of rollers, over which a lever I is driven by a pulling block and a balancing device running with rollers and load hooks and with both carriages either coupled to one another on one and the same Runway are movable or that after uncoupling and locking the rest of the slide on the runway with the slide a simple pulley block can move, and with a pulley block and compensation device by tightening the Load ropes can be combined with one another or that they thereby are separable that the pulley block under the rest of the flutes remains applied while the compensator after lifting the rope and moving sideways on the Sled is suspended with a simple pulley system.

The great advantage of the invention is that the off and Coupling of the pulley blocks possibly automatically and by notching can be controlled remotely, namely from where all other normal control functions are exercised will. In addition, no additional control functions need to be provided. All processes can be using the usual lifting and moving mechanism of the Trigger the slide from the cabin or from a remote control located on the floor in complete safety.

Further details, features and advantages emerge from the following description of the graphically illustrated Execution brackets.

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Show it :

Fig. 1 In a schematic elevation of a crane on whose Jib a double J-F pulley block according to the invention, namely in a position in which the double action is used,

Flg. 2 shows a schematic elevation like FIG. 1, but with a simply inserted pulley,

Flg. 3 is a rare view of an assembled slide unit; the associated pulley block and the compensation device *

Flg. 4 a plan view,

Flg. 5 a decoupled rest of the slide on its own considered.

Flg. 6 a plan view,

Flg. 7 shows a side view of the carriage with simple pulley,

Flg. 8 is a plan view,

Fig. 9 shows the course of the lifting rope when the two Slides are locked to each other, ο

Fig. 10 shows the same course when the two carriages are separated from each other,

Flg. Π up to 14 side views of the consecutive

Connection phases and the separation of the compensation device from the pulley,

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- .4 FIq. 15 is a side view corresponding to F | g "tl _#

FJg. / 6 to 19 a further possible execution form «, Flo «20 to 22 the successive unlocking * -

of the two sledges and the one on §e! ner

/ Career remaining sled "

23 a section along the line XX) M-XJtHf I «FIg. 22nd

/
In the drawings I and 2, a crane is shown, the trailer I of which is provided with a VertellerichlItten according to the invention. This slide essentially has a slide 2 with a simple pull, a foot slide 3,

• Ine opened 2 "It simple" pulley blocks on the sledge

Compensation device 4

and a pulley system suspended from the Restech 11tten 5.

0Ie slides 2 and 3 can extend along a common stretch <S which is provided on the boom I *

A common lever I 7 runs over the rollers of the base chutes 2 and 3, as well as those of the balancing device 4 and a block 5. The end of the lever 7 is attached to the tip 8 of the boom I of the crane, as usual, while the other end this rope is fixed on a not dargüfstetitfft winch drum of the crane,

Oil carriages 2 and 3 move along a track of rails 9 on boom I (Fig. 20). Oil The number of feet with which the carriages 2 and 3 move on the rails 9 is arbitrary. Only as an example, in the examples in the drawing, the following silence is proposed

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ORIGINAL INSPECTED

been beaten

for ShHt 2 with a simple pulley block (Flg. 4, 7 and 8> a pair of H Interro 11s 10 and two pairs of front runners U and 12;

for the remnants of bed 3 (fig * 4, 5 and 6) single pair of pipes 13, which is arranged in such a way that that the remaining shafts 3 under its own weight and under that of the pulley block 5, which is hung there is, tends to tilt forward and downward »as it is in Flg. 5 indicated by the arrow t4 If «at the rear, the carriage 3 has two arms 15, which are each provided with a stop 16, which stand on the lower edge of the rails 9 can when the slide is at rest and thus is under the tilting action described above.

Finally, the front part I of the remainder is 3 with • Provided in a centrally arranged mandrel 17, which extends horizontally pushes forward and the inside of a recess 18 of the carriage 2 (Flg. 4> can intervene. To the introduction To learn if the mandrel is conical at its front end.

A pair of reels 19 and 20 (panels 4 and 5) is on this one Thorn 17 suspended.

The rest of the slide 3 has a receiving device on its lower part 21, In which the upper Tel! of the pulley block 5 can be admitted (Flg. 5). This block is marked with "Iner Rolle 22, over which the Lifting salI 7 is running.

At the bottom of the pulley block 3 is standing with a transverse Axis a bolt 23 through which a Koppe In with the

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Compensation device 4 is made possible, as follows yet to be described.

The carriage 2 with a simple pulley system has a pair of rollers 24 and 25, over which the rope 7 runs, namely for Compensating device 4, which in turn has two rollers 26 and 27 is provided.

The compensation device 4 is firmly connected to a hook 28, which protrudes upwards and whose beak is directed backwards. The beak has on its lower part a notch 30, which is hung in the bolt 23 of the pulley can be if the crane works with a simple pulley system {Flg. 1).

In Figures 20 to 23 there is the blocking and locking mechanism the carriage 2 and 3 shown. The rest of the slide 3 is provided with a vertical socket 31, In which a piece 32 can move freely. At the top, this piece 32 merges into a bolt 33, of which a mandrel 34 protrudes vertically downwards. When the piece 32 is raised, (Flg. 22 and 23) the latch 33 lies between the lower chords forming rails 9 of the crane boom, whereby the carriage 3 is fixed, while the mandrel 34 upwards via two holes provided and firmly attached to the slide 3 connected tabs 35 is raised. Between these two perforated tabs can also be provided with a hole Plate 36, but with the carriage 2 with a simple pulley is firmly connected, intervene. It follows that when the carriages are pushed into one another, the mandrel 17 of the carriage 3 is located within the recess 18 of the carriage (FIGS. 4 and 20), the mandrel 34 is pulled up again of the piece 32 for engagement with the two overlying one another Tabs or plates 35 and 36 comes, whereby the two Slides 2 and 3 are firmly connected to each other, while

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■ φ "■

rend the residual slide 3 in relation to the lower chords 9 of the Crane boom is released.

The piece 32 tends to lower itself again either only under the effect of its own weight or under the adding effect, not shown for the decorative spring. To raise this piece 52, the free £ n # e of a rod 38 is used, which is hinged to a point 59 of the% Infachf I * scbeiii: ug * S <: h, This rod S8 * Ir 4 "I lift as soon as it is hit by the vertically rising pulley block 5, which comes to rest under it (FIGS. 21 and 22).

A crane equipped in this way works as follows:

When the sledges are separated from each other, the remains Radish suffered 3 on boom I near the crane mast iFlg, 5 and 6) locked, with the block and tackle ^ lock 5 under the slide is held by rope 7 (Figs. 5 and 15). During this tent can »I the carriage 2 alone and freely (Fig. 2, 7, β, 10) move together with the compensation device 4, the more or less depending on the one acting on the rope 7 Forces is fixed. A simple pulley system is sufficient to hold the balancing device 4 under the carriage 5 and to handle loads. To get from this position to the To be able to pass position with double pulley block (Flg. 1), the single pulley block is first moved as long as until the mandrel 17 has been picked up by the rest of the SchJ Itten 3 Is. Then, by winding up the lifting handle 7, the Compensation device 4 (wing 11, arrow 40) raised. At the end this process slides the beak or hook 29 with his Ramp along the bolt 23 and over the axis. of Solzens. If from now on the compensating device 4 is lowered, it remains hooked on the bolt 23 (flg. 3 and 12). In addition, when lifting the pulley block S

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Raised up to the rod 38 in the carriage 2 and moves it upwards, as it is in FIg. 22 is shown. This can Subsequently, by lowering the block 5 (Fig. 20) the lock of the two carriages 2 and 3 are ensured by the mandrel 34, while the bolt 33 is released from the boom and releases the remaining section 3. From now on you can the unit consisting of the two carriages 2 and 3 move along the boom by doing the unit from FI ash pull block 5 and Ausglolchsvorrlchtung 4 free hanging, as it is in the Flg. 1 and 9 shown will. In this operating position, the load can be more advantageous handle with a double pulley.

To return to an operation with a simple pulley system, the assembled carriage 2, 3 is in the intended Positioned in which the panes 3 are to be locked twice. Then the rope 7 is tightened what the compensating device 4 lifts with respect to the block 5, as it is in Flg. 13 is indicated by the arrow 41. At the same time, this enables the hook 29 above the bolt 23 to follow right (arrow) to release, at the same time the block 5 lifts the rod 38, whereby the piece 32 is moved to the bolt 33 To engage in the boom 1 and to pull out the mandrel 34. As a result, the carriages 2 and 3 are separated from each other separated (Flg. 22) and the rest of the slide from the boom set. The bolt 23 and hook 29 are released from each other, and it is sufficient in this raised position to the Slide 2 to the right or forward in the direction of the boom tip to move so that it moves alone and takes the compensating device 4 with it (Fig. 14).

In FIGS. 16 to 19 there is a modified embodiment shown, according to the beak-shaped hook 29 analogously are assigned to the block 5 and accordingly the transversely directed bolt 23 correspondingly above In the compensation

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device or deflection device 4 is arranged. the The way it works remains completely the same. It deals is just an example of how the basic idea is different can be designed constructively. In the function IonsabI correspond to the Flg. 16 of Flg. 11, Flg. 17 of Flg. 12, the Flg. 18 of Flg. 13 and Flg. 19 of Fig. 14.

Expectations :

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Claims (9)

Expectations 1. Device for handling loads by means of double pulley blocks, in particular for a crane or a loading bridge, in the form of a movable slide, characterized in that the Sled from a remaining slide (3) and a slide (2), each of which has a set of rollers, over which a hoisting rope (7) is carried by a pulley block (5) and a compensating device (4) with Rollers (26, 27) and load hook runs and both carriages (2, 3) are either coupled to one another on a and the same track (9) are movable or that after uncoupling and locking the Restsch'Ittens (3) on the Track (?) The carriage (2) can move with a simple pulley system, and with a pulley block (5) and Compensation device (4) by tightening the load cell (7) are compatible with one another or that they can thereby be separated that the pulling block (5) is under the rest of the seat (3) remains in place while the balancer (4) after lifting the load cell (7) and moving sideways on the slide (2) with a simple pulley Is hung up. 2. Apparatus according to claim 1, characterized in that the control of the on and Uncoupling of the two carriages (2, 3) and the block (5) and the compensation device (4) automatically simple tightening or yielding of the lifting rope (7) can be triggered. 3. Device according to one of the preceding claims, characterized in that the The remaining slit (3) with a horizontal mandrel (17) -It- 209848/0122 Is to see on which the slide (2) with simple Pulley fits, with the rest of the frame (3) a bolt (32-34) is provided for locking either with its track (9) or with the slide (2) Is that by a rod hinged on the slide (2) (38) and can be lifted by the block (5) if it is at the end of a lifting process, hits the top. 4. Apparatus according to claim 3, characterized in that a lifting of the pulley block (5) the disengagement of the two carriages (2, 3), the locking of the rest of the slide (3) the track (9) and finally the separation of the pulley block (5) and the adjustment device (4). 5. Device according to claims 3 and 4, characterized characterized in that by operating the distribution rope to move the carriage (2, 3) after Uncouple the two carriages (2, 3) they separate, so that the carriage (2) with a simple pulley system moves with the compensating device (4) alone remains suspended from him while the rest of the time (2) and the flasher block (5) against each other stay motionless. 6. Device according to one or more of the preceding Claims, characterized in that that the coupling and uncoupling devices of the two Carriage (2, 3) has an eyelet (36) on one, through which a mandrel (34) extends under the action of Movement of a lower lever (38). is stuck, while on the other slide (3) at least one more eyelet (35) is provided, which can overlap with the first, - 12- 209848/0122 wherein the lifting of the lever (38) by the push of the Fastening block (5) is effected when this at the end the lifting process strikes. 7. Apparatus according to claim 6, characterized in that the laying mandrel (34) the two carriages (2, 3) is surmounted by a bolt (33) which can engage in the fixed support frame (9), when the two carriages (2, 3) are separated and the however, is released from this frame (9) when the two carriages (2, 3) are locked together. 8. Device according to one or more of the foregoing Claims, characterized in that the means for fastening and releasing the lifting block (5) and the compensation device (4) on the lower part of the pulley system have a transverse axis (23), while, on the other hand, the compensating device (4) is surmounted by a hook (29) above its anchoring beak has an inclined ramp which can be supported along the axis (23) on the flashlight block (5) when the compensating device (4) is raised will. 9. Device according to one of the preceding claims, characterized in that (fiber lifting rope (7) over a roller (20) of the rest of the rope (3), over a role of the flasher block (5), over a another role (19) of the rest of the slide (3), about a Roll (25) of the shifter (2) with a simple pulley block, via a set of rollers (26, 27) of the lifting compensation device (4) and over another roller (24) of the carriage (2) with a simple pulley system, both ends of the lifting rope (7) can be operated in the usual catfish. 209848/0122