ES2198086T3 - BEARING MECHANISM FOR A WIDE FLYED WORK DEVICE, ESPECIALLY FOR A HIGH CONSTRUCTION CRANE. - Google Patents

Abstract

The invention relates to a travelling mechanism (2) for an extensively overhanging working device (1) such as a tall building crane, preferably a tower slewing crane, in addition to a travelling mechanism (2) on which such a crane (1) or working device is mounted. The travelling mechanism (2) consists of a chassis (15) with a tandem or twin axle (3, 4) comprising a first (3) and a second (4) axle, whereby the wheels (11a) of both the first (3) and second (4) axle are provided with bogie or axle pivot steering. The bogie or axle pivot steering of the wheels (11a) of the first axle (3) is connected to the bogie or axle pivot steering of the wheels (11b) of the second axle (4) so that the wheels of the first (3) and second axle (4) are geometrically and synchronously steered. Preferably, the wheels of the first (3) and second (4) axle are arranged in a supporting area of the working device (1), as in a crane (1). The travelling mechanism (2) also comprises a traction device (28) which is separate from the chassis (15) and which is joined to a tractor vehicle. Said tractor device (28) is attached to the working device (1) and thus connected to the travelling mechanism (2), whereby the working device, in its preferred embodiment as a crane, functions as part of the chassis (15) during transport and manoeuvring.

Description

Rolling mechanism for a device Widely flown work, especially for a tall crane building.

The invention concerns a rolling mechanism for widely flown work devices according to the preamble of claims 1 and 2. It is understood herein by `` widely flown '' the situation that the work device is widely flown at least in the state of transport of the same. In particular, the invention concerns a rolling mechanism for a high construction crane, in particularly preferably for a rotating construction crane at the bottom, where the rolling mechanism has a double or tandem axle comprising a front axle and an axle rear.

According to the state of the art, for example according to document FR-A-2 155 850, which discloses a rolling mechanism according to the preamble of the claims 1 and 2, tall construction cranes are known with rolling mechanism, especially construction cranes rotating in its lower part, in which the mechanism of rolling, once the high construction crane has been transported through it to the installation site, disassemble before installing the high construction crane, since, because of the relatively very long length of this crane high construction in folded state, it is extremely difficult and even impossible in many cases to maneuver the high crane of construction on the ground built at the installation site precisely, as a result of the scarcity of available space, when said crane is still in a folded state.

Thus, in the high construction crane according to the document FR-A-2 155 850 el Rolling mechanism mounted for interurban transport of the high construction crane until the installation site has to disassemble in this place to be able to maneuver and move the crane high construction on rails at the construction site through of railway carts that are permanently mounted on she.

Since the disassembly and assembly of the mechanism of Rolling for long distance transportation takes a long time, the installation and disassembly of the high construction crane causes relatively high costs and time planning corresponding, and this can lead to difficult jobs independent construction of said crane. In addition, the mechanism rolling has to be housed differently during the time installation of the high construction crane, which requires a corresponding space occupation and eventually costs of additional transport.

Therefore, it is known by the document FR-A-2 155 850 a tall crane construction for interurban transport that, in addition to the characteristics of the preamble of claims 1 and 2, it also has the features of claim 11. To interurban transport mounts the free end of the tower of the crane folded and horizontally oriented on a vehicle tractor, so that the traction force of the tractor vehicle is transmit to the crane chassis through the tower and the infrastructure of the crane and thus the crane can be dragged by the road with its chassis during intercity transport.

To guide the crane chassis, the linkage of steering that joins its wheels is connected to the vehicle chassis tractor by means of two branches of an elastic cable and through each cable deflection pulleys so that a cable branch run from the direction of the front wheel sleeve left of the crane chassis, through a deflection pulley of cable, to the right rear side of the chassis of the towing vehicle and the other cable branch runs symmetrically with respect to the First. Due to this forced guidance, the curved journey of the tractor vehicle becomes a guided crane chassis Due to the tension of the cable.

A rolling mechanism of this class with a forced guidance of this nature is certainly enough for the intercity transport of a crane, for which it is intended also according to document FR-A-2 155 850, but it is not suitable at all to maneuver the crane in the work in relatively restricted space conditions, is say that this maneuver is not possible with a rolling mechanism of this class

The purpose of the invention consists in provide a rolling mechanism, especially for a crane high construction, preferably a construction crane swivel at the bottom, which makes it possible to install widely flown work devices, as especially tall construction cranes, quick assembly and in conditions of relatively restricted space, virtually no problems with The interurban rolling mechanism.

This problem is solved in a first aspect with a rolling mechanism according to the preamble of the claim 1 presenting the first characterizing particularity and one or more of the alternative characteristics (1) to (3) of the clause characterizing this claim.

According to a second aspect of the invention, the previous problem is solved with a rolling mechanism according to the preamble of claim 2 having one or more of the alternative characteristics (1) to (3) of the clause characterizing this claim.

In this way, they are provided with the invention. a rolling mechanism and a high construction crane configured as a quick assembly crane so that the high construction crane according to the invention it can be installed quickly and without problems with the rolling mechanism, which does not require disassembly which requires a lot of time nor a new rear assembly of the rolling mechanism In addition, it is not necessary to disassemble the necessary counterweights of the crane for the road trip.

The rolling mechanism according to the invention and the high construction crane according to the invention with mechanism Built-in rolling can be supplied in various executions of speed, for example in two speed runs for 25 and 100 km / h, respectively.

According to an alternative clause characterizing claims 1 and 2, the mechanism of rolling and the high construction crane according to the invention are configured so that the tractor equipment comprises a tube of traction and / or a semi-trailer bolt. In this way, the high crane of construction forms in a folded state a rigid lance trailer or a semi-trailer that can not only be moved to work with a corresponding tractor vehicle, particularly in particular a truck or a semi-trailer, it can also be maneuvered in the work until leaving it in the exact installation place.

The particularity of the rolling mechanism resides primarily in the guiding class by means of which They can guide both axes during maneuvering.

Tractor equipment built separately from chassis can be attached to a tractor vehicle and is connected to the rolling mechanism through the mounted work device about this mechanism (whose device is a tall crane of construction in the preferred use of the rolling mechanism), of so that, during the translation movement, the device work is functionally a part of the total chassis, which is The work device is then formed by the chassis.

With the help of the guidance mentioned above, it is improved considerably during maneuvers the slow behavior that It is especially due to a very long wheel battle of high construction cranes according to the state of the art. It is thus possible to easily maneuver the high construction crane in folded state to make it pass through narrow entrances of the work.

In a preferred embodiment of the crane high according to the invention the traction tube and / or the Semi-trailer bolt are mounted on the crane tower, the traction tube being preferably configured so retractable and extendable, in which last case the traction tube does not it needs to be disassembled or tilted when the high crane is installed of construction.

In particular, the tractor equipment may be configured to present a guide tube for the tube retractable and extensible traction, the guide tube being fixed to the crane, especially to the tower of the crane, preferably rigid

Another feature of the rolling mechanism according to the invention and the high construction crane according to the invention consists in that in a preferred embodiment the semi-trailer bolt is fixedly mounted with a friction plate in the guide tube of the traction tube. The tall crane of construction can be dragged in this way to the work both in the form of a rigid lance trailer as in the form of semitrailer.

As regards the configuration of the guided the first and second axes, these axes, in a form of preferred execution of the chassis and the high construction crane mobile, can be configured according to the invention as two airships with cart guidance.

The two axles of the front wheels, by a side, and the rear wheel axles, on the other, are attached each other through a force transmission, preferably a address bar, to provide synchronous movement geometric direction, being hydraulically operable the direction system.

To move the rolling mechanism according to the invention and transport the high construction crane according to the invention by road, the steering team is made preferably so that it can be immobilized in the position of rectilinear march, since it is not necessary here to maneuver the crane.

To maneuver the steering mechanism in the place of destination in the work, especially with the high crane of construction mounted on it, the rolling mechanism according to the invention may be advantageously configured so that the hydraulically driven steering equipment can be controlled to distance through a hydraulic group preferably mounted on the chassis, being able to perform this remote control especially through a Bowden cable or electrically.

According to another alternative feature of the claims 1 and 2, the rolling mechanism is configured so that the wheels of the first and second axles are preferably arranged in the area of the support surface of the working device, preferably the crane.

Other features of the invention are still indicated in the claims, the text of which goes on to form part of the content of this description by means of this reference.

The above and other advantages and features of the invention are described and explained in more detail below. referring to a form of execution especially preferred of a rolling mechanism according to the invention in the form of execution with high construction crane mounted on it; show:

Figure 1, a side elevation view of a embodiment of the rolling mechanism according to the invention with a high construction crane mounted on it, which is executed as a rotating construction crane in its part lower;

Figure 2, a plan view of the mechanism of rolling with the high construction crane of Figure 1;

Figure 3, a section along the line A-A through the rolling mechanism of Figure two;

Figure 4, a side elevation view of the Rolling mechanism with high construction crane of Figure 1 in the state in which the support legs are in the position active and the high construction crane is deployed precisely from its folded state to the installation state;

Figure 5, a plan view of the part Bottom of the high construction crane with the mechanism of rolling, where, to illustrate the support that is intended to be shown mainly in this Figure, other parts have been deleted or these have been represented only schematically;

Figure 6, a side elevation view of the Rolling mechanism with high construction crane of Figures 1 and 4 in the installed state;

Figure 7, a corresponding plan view to Figure 5, which illustrates the tilting capacity of the legs support in and out;

Figure 8, a view of the front end in the direction of travel during crane transport with a additional front axle rolling mechanism with double axle; Y

Figure 9, the view corresponding to Figure 8 with a single axis front axle rolling mechanism.

The high construction crane 1 represented in set in Figures 1, 4 and 6, which is executed herein Execution form as a rotating construction crane in its bottom, it is provided with a rolling mechanism 2 according to the invention, mounted on it, which has a chassis frame or a frame 15 with a double axis or tandem comprising a first axis 3 and a second axis 4, forming the first axis 3 in the configuration folded of the high construction crane 1 according to Figure 1 the axis front and the second axis 4 forming the rear axle. In addition, the rolling mechanism features a tractor 28 set by separate from chassis 15, which is attached to crane 1 or another work device and that can be attached to a vehicle tractor.

The chassis 15 is fixed to the high crane of construction 1 by means of a rocker 5 having bolts 60 (see Figure 2). The high construction crane 1 presents in a way usual for rotating construction cranes in its lower part a lower carriage 4, a rotating crown 7 and an upper carriage 8, the tower 9 of the crane and the 10 crane boom. In the present case, tower 9 of the crane is constituted by a lower section 9a and an upper section 9b, and the boom 10 of the crane comprises an inner section 10a and a section exterior 10b. Other parts of the high construction crane 1, provided they are not cited below, they are parts and equipment usual of a rotating construction crane in its part lower.

The first axis 3 and the second axis 4 of the mechanism of tread 2 according to the invention are constructed as separate shafts management, for which in the present form of execution the wheels 11 provided with tires, that is, both wheels 11a of the first axle 3 as the wheels 11b of the second axle 4, may be provided with a steering system by cart. How can especially appreciated in Figures 1 and 3, the system of steering by cart comprises a cart 12 in which they are axes 3 and 4 mounted by means of leaf springs 13, as well as a steering crown 14 which in the present case is constructed like a ball direction crown and through which the corresponding cart 12 is fixed on the chassis 15 of the rolling mechanism 2. Each of the two carts 12 is provided with two joining and stiffening constructions 16 and 17, respectively, and these two joining and stiffening constructions 16 and 17 are linked together by means of a transmission system of force 18, which in the present case is made as a bar of direction, and through joints 18a and 18b, respectively, to obtain a directional movement geometrically synchronous

The steering system is hydraulically operable, specifically by means of a steering cylinder or hydraulic cylinder 19 (indicated with dashed line in Figure 2), which is mounted on chassis 15 through a first joint 20a and in a 16 of the two junction constructions and stiffening 16, 17 through a second joint 20b. East steering cylinder or hydraulic cylinder 19 is powered by a hydraulic group 58 mounted on chassis 15 and can be controlled by means of a steering or remote control 23, by example through a Bowden cable or through a cable electric. The pump not shown in hydraulic group 58 is Powered by electric current by vehicle batteries 24, by example for two 12 volt batteries of the vehicle. When the crane high construction is in use and therefore is connected to the power source of the work, batteries 24 of the vehicle are loaded through a mounted charging device. With 21 a compressed air container has been designated for installation of braking

By the previous structure the axes first and second 3 and 4 can be regulated synchronously in their steering geometry, and with the help of this steering system makes possible an excellent maneuver of the rolling mechanism 2 according to the invention, in the present case a high crane of construction 1, in the work itself, and in particular you can make an easy introduction through narrow entrances of the work.

The management team can be immobilized in the rectilinear running position by means of a retainer 62 (see the Figure 2), for example in the present case for the transport of the crane, and this is done specifically in the form of execution represented by a safety bolt 25 (see Figure 1) which can be plugged into two bushes 26 and 27 aligned one with another, of which the bushing 26 is fixedly mounted on the chassis 15 and the other bushing 27 is in one of the two trolleys 12a, 12b, so that, with safety bolt 25 introduced, both carts necessarily coupled with each other to through the force transmission system 18, which have been designated in conjunction with 12, are immobilized in the position of rectilinear march.

Traction equipment 28 (see especially the Figure 1) forms a part of the rolling mechanism 2 separated from the chassis 15 and is assembled together on the high construction crane 1, in the present case in the lower section 9a of the tower of the crane, and is connected by it with the rolling mechanism 2. When, instead of crane 1, another similar working device widely flown, such as a fire escape extremely long, a long-barrel artillery piece, a rocket firing ramp or similar, is equipped with the rolling mechanism 2 according to the invention, the traction equipment is mounted here also in the extreme area of the work device located in the forward position in the direction of travel of transport, and the working device form functionally, to as in the present case, crane 1, a part of the `` chassis '' total, as it then joins the traction equipment with the mechanism of race 2 or with its chassis 15.

The traction equipment 28 consists of the present embodiment substantially in guide tube 42, a tube of traction 29, a friction plate 30 and a semi-trailer bolt 31. The traction tube 29 is guided by the guide tube 22 to perform a retraction and extension movement, as it has been shown in Figure 1, wherein the traction tube 29 has been represented by dashed lines and points in position extended out and through full lines in position withdrawn At the front end of the traction tube 29 is find a tension ring 32 that is screwed into the tube of traction 29, so that the working device 1 in the form currently preferred execution, that is, the high crane construction shown, can be attached through the ring of traction 32 with the bolt coupling of a truck. The tube of traction 29 can be immobilized in the guide tube 42, and this in the present case by means of two plug-in bolts 33; and the tube guide 42 is fixed in the working device 1, in the present case in section 9a of the tower of the crane, through fixing plates 43.

Under the guide tube 28 the plate is fixed friction 30, for example by welding, and in this friction plate 30 the semi-trailer bolt is mounted, for example, bolted 31, so that the working device can thus be connected with the coupling of the semi-trailer to a truck or a semi-trailer, a Once the traction tube 29 has been brought into position retracted and has been immobilized in it by means of bolts pluggable 33.

Shoring of working device 1, in the present case the high construction crane is carried out by shoring leg means 36, of which, as shown by the Figure 5, 4 are provided in centrally symmetrical arrangement, being preferably formed as legs of hydraulic shoring that are fed by a group hydraulic 22 (see Figure 2). These make it possible - in contraposition to mechanical shoring spindles Conventional - fast and automatic leveling and installation of work device 1, such as the high construction crane, by means of an electronic leveling device (not shown), without a large force consumption, by only a single operator, especially flexible assembly and disassembly on land or construction sites very difficult.

As Figure 5 also shows, wheels 11 of the rolling mechanism 2 are arranged within the area of the support surface of the working device 1, that is, here the high construction crane, that is, in the area of the surface that it is enclosed within a line that joins the legs of each other shoring 36.

The hydraulic shoring legs 36 have integrated an unlockable check valve and carry incorporated as an additional security an unlocking tap for each shoring leg 36.

Shoring legs 36 are fed with hydraulic oil through hydraulic group 22 and can be also activated individually, regardless of team automatic electronic leveling, by means of control valves manual 37 (see Figure 2) comprising first check valves control 37a for the shoring legs on the left side of the rolling mechanism 2 and second control valves 37b for shoring legs on the other side of the rolling mechanism 2 (see Figure 2). The group's power supply hydraulic 22 is carried out in use from the distribution cabinet of The high construction crane 1.

As Figure 7 illustrates by means of the four arrows drawn there, the shoring legs 36 can be deploy laterally from a stowed transport position against chassis 15 (line plotting) until its working position (solid lines) and can be folded again For transport.

In addition, as Figure 2 shows, they are planned also connection 57 for power lines, a switch main 59 and a storage box 61 in chassis 15.

As Figure 4 illustrates, you have to, to install work device 1, in this case the crane high construction, the traction tube 29 has to be carried only to the retracted position so that a engage annoyingly with a part of work device 1, such as in the present case, with the boom 10 of the crane or with the mechanism of rolling 34 provided therein. As a consequence, the guide tube 42 in which the traction tube 29 is guided can be mounted rigidly in the working device 1, as, for example, in tower 9 of the crane, and can remain in this state in the working device fully installed 1 or on the high crane construction, as illustrated in Figure 6. In Figure 4, indicated by arrows 39, 40 and 41 the movements of tilting of the lower and upper sections 9a, 9b of the tower the crane and sections 10a, 10b of the crane boom during the installation of the latter.

As Figure 1 shows, the counterweights 35 of The crane can remain in the high construction crane folded 1 during transport

Finally, in tower 9 of the crane, especially in its lower section 9a, a support leg 38 foldable and variable in height so that you can be disassembled (Figure 1) or folded (Figures 8 and 9) to prop up work device 1, such as the high crane Widely outstanding construction of the rolling mechanism 2 in the state of the same in which it is not coupled to a truck or a tractor. This support leg 38 has a wheel in Figures 8 and 9 39 with which it can also be propped up when maneuvering the work device 1.

Figures 8 and 9 show the front end of the crane in the direction of transport of the latter in state folded with a double 43 front axle rolling mechanism axle fixed to it (Figure 8) and a shaft rolling mechanism front 44 of a single axis fixed to it (Figure 9), since in heavy duty construction cranes the load on the tube of traction exceeds one ton. Since the legislator does not allows more than one ton, you can no longer use a tube of traction. For this reason, an axle construction is used additional front (braking) 43 or 44. The same consideration applies for other work devices, such as artillery pieces of long cannon, etc. (see above).

Depending on the tractor vehicle, crane 1 can be towed as a semi-trailer or as a lance trailer several axes

In particular, the front axle construction 43, preferably braking, according to Figure 8 comprises two axes 45 and 46 with wheels 47 and elastic suspension 55 (leaf suspension or air suspension), a chassis 48, a rotating crown 49 located on it (crown of ball direction) and a frame superimposed 50 on which lugs 51 are mounted to bolt the front axle rolling mechanism 43 to traction equipment 28 of the working machine 1, such as, in the present case, the crane. On the friction plate 30 of the traction mechanism 28 are mounted housing devices 52 for lugs 51, and both lugs 51 as accommodation devices 52 are provided of through holes or holes 53 for plug-in bolts (no represented). Through the holes or through holes 53 and The plug-in bolts are fixed all front axle construction 43 to work device 1, in this example to the crane.

A shaft construction is shown in Figure 9 front 44 single axle - also preferably braked - on the status already set to work device 1, in the present case to the crane. Apart from the single axis 54 and the resulting modification of this, this construction is otherwise configured from it so that the front axle construction 43 of Figure 8, so reference is made in this regard to the description of this last figure.

The front axle construction 43, 44 can be couple a tractor vehicle by means of a traction lance 56.

As an alternative, fixing the construction front axle can be carried out on the semi-trailer bolt 31 by means of a semi-trailer coupling; in this construction a double shaft 45, 46 is absolutely necessary. The coupling of semi-trailers then also replaces the rotating crown 49, since the turning movement is effected through the friction plate 30 or semi-trailer bolt 31.

Claims (19)

1. Rolling mechanism for devices Widely flown work, especially for a tall crane construction, comprising:

(TO)

a chassis (15) with a double axis or tandem (3, 4) that has a first and a second axes;

(B)

A team of traction (28) that can be attached with a tractor vehicle;

where the chassis (15) and the traction equipment (28) are constructed in such a way that

(to)

both wheels (11a) of the first axle (3) as the wheels (11b) of the second axle (4) they are provided with a cart or steering system stub

(b)

the system of steering wheel or wheel sleeve (11a) of the first axle (3) is connected to the cart or steering system wheel hub (11b) of the second axle (4) such that the steering movement of the wheels (11a, 11b) of the first and of the second axis (3, 4) is carried out synchronously in terms of direction geometry;

(c)

the wheels (11th, 11b) of the first and second axes (3, 4) are arranged preferably in the area of the shoring surface of the working device (1), preferably of the crane; Y

(d)

The team of Traction (28) has been built separately from the chassis (15) and is can be installed on the work device (1), especially in a crane, preferably a high construction crane, which has been to transport on the chassis (15) and that can be joined with this chassis (15) to form a constructive unit, and can be joined with the rolling mechanism through said device job;

characterized because the first and second axes (3, 4) are built as two steering axes with steering system by cart and both axles (3, 4) are connected to each other to perform a synchronous movement of the direction geometry by means of a force transmission system (18), preferably an address bar, and why

(one)

the address is Hydraulically operable, can be controlled remotely preferably the hydraulically driven steering equipment at through a hydraulic group (58) preferably mounted on the chassis (15); I

(two)

The team of traction (28) comprises a traction tube (29) and / or a bolt of semitrailer (31); I

(3)

a additional front axle rolling mechanism (43, 44) that can detachably attached to the traction equipment (28) and coupled to A tractor vehicle

2. Rolling mechanism for devices Widely flown work, especially for a tall crane construction, which comprises

(TO)

a chassis (15) with a double axis or tandem (3, 4) that has a first and a second axes; Y

(B)

A team of traction (28) that can be joined with a tractor vehicle;

where the chassis (15) and the traction equipment (28) are constructed in such a way that

(to)

both wheels (11a) of the first axle (3) as the wheels (11b) of the second axle (4) they are provided with a steering system by cart or by stub

(b)

the system of steering by cart or by wheel sleeve (11a) of the first axle (3) is connected to the steering system by cart or by wheel hub (11b) of the second axle (4) such that the steering movement of the wheels (11a, 11b) of the first and of the second axis (3, 4) is carried out synchronously in terms of direction geometry;

(c)

the wheels (11th, 11b) of the first and second axes (3, 4) are arranged preferably in the area of the shoring surface of the working device (1), preferably of the crane;

(d)

The team of Traction (28) has been built separately from the chassis (15) and is can be mounted on the work device (1), especially in a crane, preferably a high construction crane, which has to transported on the chassis (15) and that can be joined with this chassis (15) to form a constructive unit, and can be joined with the rolling mechanism through said device job;

Y

(and)

the axes first and second (3, 4) are formed by individual shaft stumps and the axles of the front wheels (11a) are connected to the rear wheel axle stumps (11b) to achieve a synchronous movement of the direction geometry by means of a force transmission system (18), preferably a bar of traction;

characterized because

(one)

the address is hydraulically operable, and can be controlled remotely preferably the hydraulically driven steering equipment at through a hydraulic group (58) preferably mounted on chassis (15); I

(two)

The team of traction (28) comprises a traction tube (29) and / or a bolt of semitrailer (31); I

(3)

a additional front axle rolling mechanism (43, 44) that can detachably attached to the traction equipment (28) and coupled to a tractor vehicle

3. Rolling mechanism according to claim 1 or 2, characterized in that the semi-trailer bolt (31) is provided on a friction plate (30). 4. Rolling mechanism according to claim 1, 2 or 3, characterized in that the traction tube (29) is retractable and extensible. 5. Rolling mechanism according to claim 4, characterized in that the traction equipment (28) has a guide tube (42) for the retractable and extensible traction tube (29). A rolling mechanism according to claim 5, characterized in that the guide tube (42) can be fixed, preferably rigidly, to the working device (1), especially to the crane, preferably to a crane tower (9). 7. Rolling mechanism according to one of claims 3 to 6, characterized in that the friction plate (30) with the semi-trailer pin (31) is mounted on the guide tube (42) and / or can be mounted directly on the device working (1), especially in the crane, preferably in the tower (9) of the crane. 8. Rolling mechanism according to one of claims 1 to 7, characterized in that the steering equipment can be immobilized for transport in the rectilinear running position by means of preferably a plug-in bolt (33). 9. Rolling mechanism according to one of claims 1 to 8, characterized in that the additional front axle rolling mechanism (43, 44) can be fixed to the traction equipment (28) by means of plug-in bolts and / or by means of of the semi-trailer bolt (31) or by means of one of these. 10. Rolling mechanism according to one of claims 1 to 9, characterized in that the additional front axle rolling mechanism (43, 44) is constructed with several axles, especially with a double axle, and can be fixed on the traction equipment ( 28) by means of a horizontal rotation device (31, 49). A rolling mechanism according to one of claims 1 to 10, characterized in that the rolling mechanism (15, 28) and a widely flown working device (1), preferably a high construction crane (1), especially a crane Rotating construction in its lower part, can be assembled to form a mobile work device, preferably a mobile crane, the work device (1), preferably the crane, being mounted on the chassis (15) and the traction equipment ( 28) installed in the work device (1), preferably in the crane, at a certain distance from the chassis (15) and connected with this chassis (15) by means of the work device (1), preferably the crane. 12. Rolling mechanism with working device, especially with crane, according to claim 11, characterized in that the traction tube (29) and / or the semi-trailer bolt (31) are mounted on the tower (9) of the crane. 13. Rolling mechanism with working device, especially with crane, according to claim 11 or 12, characterized in that the traction equipment (28) is fixed to the crane (1), preferably to the tower (9) thereof, by means of the guide tube (42), this guide tube (42) being preferably rigidly mounted on the crane (1) or on the tower (9) thereof. 14. Rolling mechanism with working device, especially with crane, according to claim 11, 12 or 13, characterized in that the friction plate (30) with the semi-trailer bolt (31) is mounted on the guide tube (42) and / or directly in the work device (1), especially the crane, preferably in the tower (9) of the crane. 15. Rolling mechanism with working device, especially with crane, according to claim 11, 12, 13 or 14, characterized in that in the infrastructure of the crane (1), especially the lower carriage (6) thereof, mounted on the chassis (15) are arranged shoring legs (36), preferably hydraulic shoring legs. 16. Rolling mechanism with working device, especially with crane, according to one of claims 11 to 15, characterized in that at least one is mounted on the working device (1), preferably on the tower (9) of the crane. support leg (38), preferably retractable. 17. Rolling mechanism with working device, especially with crane, according to one of claims 11 to 16, characterized in that the infrastructure, especially the lower carriage (6), of the working device (1), especially of the crane, is mounted on the chassis (15) through a rocker (5). 18. Rolling mechanism with working device (1), especially with crane, according to one of claims 11 to 17, characterized in that the chassis (15) is designed in such a way that, during transport, counterweights can remain, especially the counterweights (35) of the crane, on the work device (1) or on the crane. 19. Rolling mechanism with working device (1), especially with crane, according to one of claims 11 to 18, characterized in that an additional front axle rolling mechanism (43, 44) is fixed in the traction equipment (28) ).