DE2714014A1 - CRANE WITH TELESCOPIC BOOM AND TROLLEY - Google Patents

Description

PATENT Attorney DIPL-INQ. JOACHIM STREET

44 $ HANAU ROMEHSTlL 1 »· POST BOX 793 · TEL. (06181) ΪΟβ (Β / ίΟ74Ο TE LEQRAM ME, HANAUPATENT TELEX. 41847MpW

27140U ⁽⁸⁵⁶⁶⁾

POTAlN S.A.

89 Avenue du President Roosevelt

Chevllly Larue, VaI de Marne France March 29, 1977

(6695626) FR Str / MI - 11 511

Crane with telescopic boom and trolley

The present invention relates to a system and arrangement for moving loads with the aid of a crane a telescopic boom on which a trolley can be moved Is.

Telescopic booms with trolleys are known. With one type the trolley runs to move the load horizontally Near the crane mast on the jib foot. When the trolley reaches the free end of the boom foot, it goes on the retracted boom outrigger over where it will be locked. The further movement of the load is then carried out by telescopic arms of the boom to the crane's largest range bet.

In the case of other types of construction, the trolley can be continuous one behind the other be moved on the boom foot and on the boom tip. The boom can only be telescoped in the unloaded state. When the boom tip is extended, it remains In unchangeable with respect to the boom foot. The trolley goes from a roadway in the boom foot to the roadway in the fixed boom tip each over a ramp.

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POTAIN SA
(11 511)

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These known designs have several disadvantages. Of the Boom foot and the boom tip necessarily have different ones Cross-sections. When the runway seemed out of the There are lower chords of the boom, their track width is different. Additional systems are then required that first distribute the load through the trolley over the entire length make the boom possible. These additional systems are for example Multiple or piggyback trolleys, Hi Ifs rails or in the track changeable rails, etc., on the one hand make the curb weight of the boom already heavier and on the other hand mechanical operating systems and controls for require alternating use of these additional systems. In addition, there are the necessary locking mechanisms of the Trolleys on the boom or the boom elements one below the other. In addition, layouts that can be changed in length are possible. systems that can be changed quickly and easily during operation, because of their flexibility in the swivel radius with existing obstacles, such as neighboring cranes or structures that have already been built are an advantage.

It is the object of the present invention to address these disadvantages to verir i the and to create a telescopic boom with a single trolley for load distribution, this Trolley can switch from the top to the foot of the boom or vice versa, and here constantly with the Tracks or rails remain in contact.

According to the invention, this object is achieved by a crane telescopic boom with distribution trolley and a construction of the boom with any cross-section as well as with at least one design foot and at least one boom tip with different Cross-section sizes, each cantilever element with a track is provided for the trolley, solved in that the tracks have inclined ramps, which with the respective outer end of a foot element are firmly connected and that one

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POTAIN SA
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only trolley is provided, which is provided with support devices and Ro I Ieiηrichtungen to move one after the other to move on the running tracks, each of which consists of off IegerfussI on track, inclined ramp and boom tip track exists, and that the trolley can move over the entire length of the telescopic boom. Advantageously, this can be done here the load can be carried.

Further features can be found in the subclaims.

When the trolley rests on the lower chords of the elements moved, the roles of the trolley outside the boom cross-sections are on top of each other and in different vertical planes attached.

If the boom has several telescopic elements, has the distributors on catze have exactly as many sets of rollers, each set of rollers with the tracks of the running track and the successive ones Ramps work together to distribute the load over the maximum length without additional mechanisms to enable.

In a modified embodiment, the distribution is with the greatest range by telescoping the tip element accomplished, the distributors I on cat with this element can be brought into connection by simple support devices

According to a further embodiment, the distributor can if the tracks are arranged on the upper chords, without interruption from the front end of the boom tip to be moved to the rear end of the counter-jib. The counter jib itself can be composed of several telescopic elements being the transition of the trolley from one to the other by the inclined ramps that are fixed to the rear End of the counter-jib foot are connected, is ensured.

709841/0838

POTAIN SA
(11 511)

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It is obvious that numerous other combinations between telescopic boom and distribution slide in modification the idea given here are possible. Some Examples can be seen from the drawings. Therefore, there are further details, features and advantages of the invention from the appended claims and from the following Description of the drawing.

Show it :

1 shows a telescopic boom according to the invention provided crane with a partial cut in the plane of the trolley;

Fig. 2 shows a transition of the trolley from the boom foot to the end of the boom under splice an inclined ramp;

3 is a schematic view of a tower crane,

on which the Vertei IerI aufkatze on the upper chords a telescopic boom according to the invention runs;

FIG. 4 shows an enlarged view corresponding to FIG. 3 the transition of the trolley from one element of the boom to the other;

Fig. 5 is a plan view from the front of a trolley with cross rollers which are mounted on the upper chords of a boom runs with a cross-section in the shape of an inverted triangle;

Fig. 6, 7, further embodiments each of a

I part of the cat, which is on the upper belt of one Telescopic boom with triangular or right-angled cross-section runs;

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POTAIN SA
(11 511)

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Figure 9 is a top plan view of the unit

from trolley and telescopic boom accordingly Figures 3 and 4;

10 shows a telescopic boom with three elements;

Figure 11 is a front view of the trolley and boom assembly according to the invention and accordingly according to the embodiment Fig. 10;

12 shows a boom with three telescopic elements

according to the invention, wherein the trolley can be moved on the first two elements while on Jem outermost cantilever tip element supports;

13 shows a front view corresponding to the embodiment according to FIG. 12;

14 shows a further modified embodiment,

in which the trolley without interruption can be moved on the boom and on the counter-jib and

Fig. 15 shows a continuous running track that emerges from the telescopic ■ · boom and the counter that is also open to me

boom consists.

A boom of a crane 1 is telescopic. It has at least one foot element 2, in the interior of which a tip element 3 is arranged displaceably. In the embodiment shown in Fig. 1, a Vertei I he trolley moves on the lower chords 5 or 6 of the boom elements 2 and 3. The cross section of the telescopic boom can be a triangle pointing upwards. At the top chord 8 of the Ausleget-

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POTAIN SA
(11 511)

foot 2 engages a pull rope 7. The front end of the lower chords 5 of this foot element 2 is through transition ramps 9 extended, which are inclined downwards. The tip element section 3 is located within the foot element section 2. The width of the trolley 4 is at least equal to the largest width of the boom. These Trolley 4 is provided with a first set of rollers 10, which runs on the belts 5 and with a second upper roller set 11, which is parked on a narrower guide track is to tip on the straps 6 of the boom to run.

This transition is made possible in the cross-sectional plane by that in the area of the ramp 9, the cross-sectional triangle of the Foot boom 2 stops, so that the closer standing roles are no longer down on a side strut of the triangular Meet cross-section. In addition, the outer connection of the upper chord 8 and the lower chord 5 runs obliquely.

The trolley 4 has, in a known manner, cross pieces for the attachment of pull ropes for the longitudinal movement of the trolley and pulleys for the lifting system. The lower and upper roller sets 10 and 11 each consist of 2 pairs of rollers, one pair 11 a and 10 a on the tip side of the trolley 4 and the other pair 11 b and 10 b on the mast side.

The transition of the trolley from one boom element to the other is accomplished as follows:

When the trolley 4 is on the boom 2, the lower rollers 10 a and 10 b run on the lower chords 5. Under the action of the pull rope , the trolley 4 runs to the front end of the foot 3. The pair of rollers 10 a is based on the inclined Ramp 9 . The trolley 4 moves on, the pair of rollers 10 b also rolls on that ramp 9 and the trolley 4 inclines downwards (position 4 a, FIG. 2).

709841/083

POTAIN SA
(11 511)

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The upper rollers 11 a and 11 b come with their raceways, which consist of the lower chords 5 of the tip element 3, in touch.

The trolley 4 now runs with the upper rollers 11 on the boom tip 3. The trolley advantageously remains in constant contact with the crane boom throughout the transition from one section to the other.

A first essential detailed development of this new transfer of the trolley from one boom part I to the other, omitting all auxiliary equipment how double I slits, interlocks, etc. results in the case of a boom 13 according to FIGS. 10 and 11 which has more than two telescopic elements in the boom. With the exception an outer tip member 14 has each individual section 15 and 16 of the telescopic boom 13 at its front At the end of an inclined ramp 17 and 18, respectively. A trolley 19 (Fig. 11) is equipped with as many sets of rollers 10, 11, 12 as how there are different career tracks. The distance between the rollers is set up so that they are each around the corresponding roll sets with the lower straps of the corresponding Sections of the telescopic boom 13 come into engagement. The hoist rope for the loads and the pull rope of the Trolley 19 can also be used in this embodiment arrange the known type.

In Fig. 3, another preferred embodiment is a form Telescopic boom 22 shown. A trolley 20 runs on top of that Upper chords 21 and 23 of the boom 22. A pull rope 24 is at the front end of a copyable tip element 23 set. The upper straps of the Aus Iegerfuss are at the front with it ramps 25 inclined at the bottom. In Figures 5, 6, 7 and 8 are different forms of implementation of the trolley shown. The trolley 20, for example, is cylindrical Rolls 26, 27 provided of at least the same width as that of the boom (Fig. 5). The running devices on each pair of belts can also consist of independent roles 28 and

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(.11 5 11)

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29, which are grouped together, exist (Fig. 7). the Rollers 28 of the outer pairs are spaced from one another in such a way that they are each connected to one of the longitudinal upper belts of the boom section with a larger cross-section work together. The inner pairs of rollers 29 run on the upper chords of a telescopic element 31 with a smaller cross section (FIG. 7). The rollers 28 and 29 are each around the same in a direction transverse with respect to the boom axis Offset. They can be arranged coaxially and have the same diameter. This is how a trolley stays always at the same distance over their career.

Another modified embodiment is shown in the figure 6 is to provide a trolley 33 with small common rollers 34, which run on a quei— and horizontally Axis are arranged. A wheel flange divides the roles into Outer part 34 a for moving au1 the wide-gauge belt of the foot extension and in an inner part 34 b for moving on the tip element 23 of the extension arm 22 which can be removed.

It is known that the hoist is used for loads the distributor is hung on cat. When the whole Structure of this trolley is located above the top chords of the boom (embodiment shown in Figs. 5, 6, 7) should be a lifting hoist 40 made up of two half-tacking hoists 38 and 39 be put together (Fig. 5). The two Half-chain hoists are of the same type in a known manner Lifting rope controlled. You walk with the trolley on both sides of the telescopic boom.

In the DT-OS 26 35 387 i> t has already been proposed such a structure with two side pulley blocks 67 and 68 (Fig. 14 and 15) for the trolley to provide one from the front of the jib to the back of the counter jib to enable uninterrupted uninterrupted career.

709841/0838

POTAIN S.A. (11 511)

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According to the present invention, a stick a foot 52 and a telescopic tip 53. The rear counter jib 54 also has a foot 55, at the rear end of which an inclined ramp 56 is provided. A telescopic excerpt 57 makes it possible a change in length of the counter jib 54. A trolley 60 can be ai. move the upper chords of the elements that together a unit for both setting up the crane as well as for lifting and transporting loads.

Such a structure is shown in FIGS. the The track of the trolley consists of a first track 61, the top belt of the Aus Iegerfusses in front of the mast. A second Track 62 connects in the manner described above as the upper chords of the front telescopic element. One down and the front inclined ramp 63 serves as the transition of the trolley 60 from the first to the second track. It includes itself third track 64, which consists of the upper chords of the counter jib 55 behind the mast 59. Finally is a fourth track 65 in the form of the belts of the rear telescopic element 57 of the counter-jib is available. One down and ramp 56, inclined at the rear, is used for the passage of the trolley 60 from the third to the fourth track.

The first and third track, i.e. those on the feet of the jib 51 and the counter jib 54, can be the same, straight, continuous cross-sections, as shown in Figure 14, to have. If their cross-sections are different, as shown in Fig. 15, another, third, is for example forward inclined inclined ramp 66 is provided for the front end of the upper flange of the counter jib. This additional Section can also specify a distance necessary for the mast. So the trolley 60 can move without interruption move from the front end 70 of the telescopic boom to the rear end 71 of the telescopic counter boom.

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In the embodiment shown in Fig. 8 are located running devices 36 of a trolley 37 are also in Contact with the upper chords of a telescopic boom 35. The trolley 37 surrounds the side surfaces and the lower part. part of this boom. The connection system for the trolley 37 and the hoist 40 for the loads can then be arranged in the axis of the boom and the trolley be. In the same way, a retaining cable 24a be anchored at the free end of the Ieger foot. the The trolley moves on both sides of this train, which is arranged in the middle longitudinal plane of the boom.

When the trolley runs on the upper chords of the elements of the telescopic boom, the distance between the upper chords is strap at least equal to the largest width of the boom. The cross section of this boom then corresponds to one on the triangle standing at the top (Fig. 5) or is right-angled or square.

The running devices of the trolley on the upper chords, the Rollers, rollers or other supporting devices that are associated with the different cross-sections of the telescopic boom in contact are on transverse axes that lie in the same horizontal plane.

The transition of the trolley 20 from one element of the boom another with a different cross-section can be explained as follows with reference to FIG. 4:

The trolley 20 is at a first moment for example on the upper chords 21 of the foot element and is supported only there. She is not through one shown pulling device of any type according to arrow 41 procedure. The rollers 26 and 27 (or the small lateral rollers 34 a or the outer rollers 28) run on the belts 21.

When the trolley arrives at the front of the boom foot, the

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Front roller 26 on the inclined ramps 25. This causes the trolley to be lowered to the level of the O'ergurte 23 of the boom tip. The roller 26 (or the inner part 34 b of the small rollers 34, or the rollers 29) are supported on the belts 23 and the trolley 20 is in the intermediate position 20 a, with their front running devices run on the tip element while the rear running devices are supported on the inclined ramp of the foot element.

In the further course of the shift in the direction of the arrow 41 goes the rear roller 27 or the rear rollers, or the rear rollers in turn from the boom foot to the boom tip, pulling the trolley forward. In the Position 20 b have the running devices of the trolley Leave the sloping ramp of the Aus Iegerfuss. The trolley 20 is then supported on the upper chords of the tip. In the course of the transition from the upper cross-section (boom foot) to the lower cross-section (boom tip) it can be seen that the trolley remains in constant contact with the upper chords. So the transition will take place with complete certainty. There will be no mechanical device or auxiliary system required for this (Figs. 4 and 9).

When the trolley 20 moves in the opposite direction (Shift in the direction of arrow 42) it goes over in the same way from the boom tip to the boom foot.

The boom tip shown in Fig. 12 has three elements with different cross-sections. First two elements 43 and 44 are each provided at the front end with a downwardly inclined ramp 45 and 46, respectively. A trolley 47 is running on the upper chords of these two elements with the help of rolling devices 48 (Figure 13).

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If a rough reach is required, an additional extension of a tip element 49 takes place. The trolley 47 comes into contact with the upper chords of this tip element via connecting pieces 50. The trolley 47 moves not on the telescope tip 49 (Fig. 12 and 14), but is moved along by this top tent 49.

709841/0838

Claims (1)

PATENT Attorney DIPL-INQ. JOACHIM STREET MS HANAU ROMERSTK.it POST BOX 793 TEL (061M) iMM / 80740 TELEQRAMMEi HANAUPATENT TELEX, 41847Mpci 27U0U POTAlN S.A. Avenue du President Roosevelt Chevilly Larue, VaI de Marne France March 29, 1977 (6695626) FR Str / Ml - 11 511 Crane with telescopic boom and trolley Patent claims: Crane with telescopic boom and trolley for any Boom cross-section and with at least one boom foot and a boom tip of different sizes, where both foot and tip are provided with a track for the trolley, characterized in that the front end of the foot element (2) has at least one inclined ramp (9) in its extension, which is firmly connected to the foot element (2), while the trolley (4) has Ieiηrichtungen (10, 11) that are constantly with dom foot element (2) or the ramp (9) or the tip element (3) remain in connection for what the RoII devices (10, 11) transversely to the boom axis extend differently or in different ways Are arranged spaced. Crane according to claim 1, characterized in that the direction of rotation (26, 27; 28, 29; 34; 36, 48) are arranged in one plane of the trolley (20, 32, 33, 37, 47). 709841/0838 ORIGINAL INSPECTED POTAIN SA
(11 511) 27U0U 3. Crane according to claim 1, characterized z e i c h η e t that the Ro I directions (10, 11; 12) arranged in different levels of the trolley (4, 19) are. 4. Crane according to Claims 1 to 3, characterized thereby t that the RoI! facilities (10, 11, 12, 26, 27, 28, 29, 34, 36, 48) of the trolley (4, 19, 20, 32, 33, 37, 47. from several sets of rollers exist with different distances corresponding to the different Tracks (5, 6, 21, 23, 43, 44) of the telescopic boom elements (2, 3, 14, 15, 16, 22, 23, 30, 31, 43, 44) and that the roles are in constant Contact with the raceways of the Aus Iegerfusses (2) or the boom tip (3) when the trolley (4) passes from one element of the boom to another. 5. Crane according to claim 4, characterized θ i c h η e t that the boom has several telescopic elements (Fig. 10), each of which, with the exception of the last (14) with an inclined ramp (17, 18) is provided, which is arranged at its front end and in its extension. 6. Crane according to one or more of the preceding claims, characterized in that the inclined ramps (25) for the transition of the trolley (20) are arranged at the end of the upper chords (21), which place the tracks on which the Rolling devices (26, 27) of the trolley (20) supported are. -C- 709841/0838 POTAIN SA (11 511) 3 27H0H 7. Crane according to claim f>, characterized in that g e ■ <· indicates that the trolley (20) has a front and a rear cross roller (26, 27), which is supported on the track regardless of the distance between them. 8. Crane according to one or more of the preceding claims, characterized in that that the trolley (32, 33) has several pairs of double rollers (28, 29, 34), which are all arranged in the same horizontal transverse plane. 9. Crane according to one or more of the preceding claims, characterized in that that a boom (51) in front of the crane mast (59) and a counter-jib (52) behind the crane mast (59) each come from Put together elements that create an uninterrupted career for a trolley (60), which is located on the upper chords from the rear on the counter jib (54) to the front The end of the telescopic boom tip (53) can be moved. 10. Crane according to claim 9, characterized zei seframe that the counter-jib (54) aufwe'st a telescopic element (57) in the foot (55) of the counter-jib (54), wherein the Kontinuier I Ichke i t of the displacement of the trolley (60) by an inclined downwardly and rearwardly Ramp (56) is ensured, which is arranged at the rear end of the Gegenaus Iegerfusses (55) in the extension of the upper chords. 11. Crane according to one of claims 9 or 10, characterized in that the boom foot (61) and the counter- jib foot (64) have different, preferably triangular cross-sections, the continuation of the track being ensured by an inclined ramp (66 ) attached to the larger cross-section (64) (Fig. 15). 709841/0838 POTAIN SA
(11511) 27U0U 12. Crane according to one of claims 1 to 5, d a d u · 'c h marked i chnet that the career tracks for the trolley (4, 19) consist of the lower chords (5, 6) of the telescopic elements (14, 15, 16) of the boom, wherein the rollers (10, 11) of the trolley attack from the outside on the boom (2) and one above the other in four different vertical planes are attached. 13. Crane according to one or more of the preceding claims, characterized in thatof one For the loud cat (20, 32, 33, 60) riding the top chord, a double-sided truck-trailer combination on both sides of the boom (38, 39) leads down. 14. Crane according to one or more of the preceding claims, characterized in that the telescopic element (49) of the front end with one on the Top locked (50) trolley (47) is telescopic. 709841/0838