EP4261174A1 - Device set for the transport of a crane undercarriage and method for producing a transport unit for transporting a crane undercarriage - Google Patents

Abstract

The invention relates to a device set for connecting components of a crane undercarriage (2) to form an elongated transport unit (3). The components of the crane undercarriage (2) comprise at least one long support beam (4), which extends in a first longitudinal direction (5), a first short support beam (10), which extends in a second longitudinal direction (11), and a second short support beam (12), which extends in a third longitudinal direction (13). The crane undercarriage (2) has an operational state (50) in which the components of the crane undercarriage (2) are connected to one another for use as the undercarriage of a crane. The crane undercarriage (2) has a transport state (49) in which the components of the crane undercarriage (2) are at least partially connected to the elongated transport unit (3). When the crane undercarriage (2) is ready for use, the first short support beam (10) and the second short support beam (12) form an overall beam which the long support beam (4) crosses. The device set (1) comprises at least a first connecting traverse (6), a second connecting traverse (7) and a connecting element (15). The connecting element (15) is designed so that the first short support beam (10) and the second short support beam (12) can be rigidly connected to one another to form a transport beam (18) in the transport state (49) of the crane undercarriage (2) by means of the connecting element (15). are so that they extend one behind the other with respect to the second longitudinal direction (11). The first connecting traverse (6) and the second connecting traverse (7) are designed in such a way that they allow the long support beam (4) and the transport beam (18) to be connected to a rigid transport base (8) of the transport unit (3). that the long support beam (4) and the transport beam (18) lie next to each other in the direction transverse to the first longitudinal direction (5) of the long support beam (4).

Description

The invention relates to the transport of a crane undercarriage and a method that is used when transporting a crane undercarriage.

A tower crane, in particular a tower crane, usually includes a so-called undercarriage. The undercarriage forms the base of the crane's tower. It can be provided that the undercarriage is movable on the ground on which it stands. However, it can also be provided that the undercarriage rests firmly and immovably on the ground. The undercarriage is composed of several components that must be connected and assembled together for the crane undercarriage to be used. When operational, the width of a crane undercarriage is too large to be transported on a truck and on a road. When operational, the crane undercarriage would protrude beyond the long sides of the truck. Therefore, the crane undercarriage must be dismantled into its individual components for transport - for example from one construction site to the next. The individual components are loaded individually onto the truck using a crane and lashed there. This procedure requires numerous crane lifts and is therefore time-consuming and costly.

The invention is based on the object of specifying a device which enables a quick and cost-effective transport of a crane undercarriage.

This task is solved by a device set with the features of claim 1.

A further object of the invention is to provide a method that enables a crane undercarriage to be transported quickly and cost-effectively.

This task is solved by a method according to claim 12.

Using the device set according to the invention, components of a crane undercarriage can be connected to form an elongated transport unit. The invention is based on the idea of using the components of a crane undercarriage to form an elongated transport unit. The components of the crane undercarriage, which are used to form the elongated transport unit, include at least one long support beam which extends in a first longitudinal direction, a first short support beam which extends in a second longitudinal direction and a second short support beam which extends in a third longitudinal direction extends. The crane undercarriage that is not being used is in a serviceable condition. When the crane undercarriage is ready for use, the components of the crane undercarriage are connected to one another for use as the undercarriage of a crane. The crane undercarriage is in transport condition. When the crane undercarriage is being transported, the components of the crane undercarriage are at least partially connected to the elongated transport unit. When the crane undercarriage is ready for use, the first short support beam and the second short support beam form an overall beam. When the crane undercarriage is ready for use, the overall beam crosses the long support beam.

The claimed device set comprises at least a first connecting traverse, a second connecting traverse and a connecting element. The connecting element is designed so that the first short support beam and the second short support beam are rigidly connected to one another in the transport state of the crane undercarriage by means of the connecting element Transport bar can be connected to each other. The first short support beam and the second short support beam can be connected to one another in the transport state of the crane undercarriage by means of the connecting element in such a way that they extend one behind the other with respect to the second longitudinal direction. This results in the transport bar, which can be easily connected to the long support bar.

The first connecting traverse and the second connecting traverse are designed in such a way that they allow the long support beam and the transport beam to be connected to a rigid transport base frame of the transport unit. The first connecting traverse and the second connecting traverse are designed so that a connection of the long support beam and the transport beam is possible in such a way that the long support beam and the transport beam lie next to each other in the direction transverse to the first longitudinal direction of the long support beam. In particular, the transport beam and the long support beam form opposite outer sides of the transport base frame. The first connecting traverse and the second connecting traverse expediently form opposite outer sides of the transport base frame. In particular, the transport base is frame-shaped. The transport beam, the long support beam, the first connecting traverse and the second connecting traverse advantageously form a frame.

The transport underframe can be used to transport the remaining components of the crane undercarriage that are not required to form the transport underframe. This makes it easy to transport the crane undercarriage. By using the components of the crane undercarriage to form the transport undercarriage, the material costs and the transport costs for transporting the crane undercarriage can be kept to a minimum. It is not necessary to create a separate transport basket. In particular, the device set can be used for existing crane undercarriages. It can be easily retrofitted. In particular, the device set is a retrofit kit.

The transport undercarriage offers the advantage that the remaining components of the crane undercarriage can be accommodated in it, so that in order to load the components of the crane undercarriage onto a truck, only a single crane lift is required, with which the transport undercarriage is loaded onto the truck. Similarly, when unloading the components of the crane undercarriage, only a single crane lift is required. This brings great cost and time savings.

Lashing the components of the crane undercarriage is also much easier. The components of the crane undercarriage stored on the transport undercarriage simply need to be lashed against the transport undercarriage standing on the truck. In this way, the transport underframe - and thus other components of the crane undercarriage - are already lashed to the truck.

By connecting the support bars to the transport base, a rigid structural unit is created that can be transported in a safer manner than the individual support bars separately from each other. The support bars include the long support bar, the first short support bar and the second short support bar.

The connection of components of the crane undercarriage to the transport undercarriage using the device set according to the invention is also advantageous for storing a crane undercarriage. The remaining components of the crane undercarriage, which are not required to form the transport undercarriage, can be stored clearly and orderly on the transport undercarriage. It is therefore not necessary to store individual components separately from each other. In the material warehouse - for example at the construction yard - a crane undercarriage stored in this way is easy to find and easy to grab. The transport unit formed in this way combines all parts of the crane undercarriage in a simple manner. In this way, the risk of individual components of the crane undercarriage being mixed with those of other crane undercarriages or other stored parts and/or being lost is minimized.

The first connecting traverse and the second connecting traverse are advantageously designed in such a way that they can be attached to the long support beam and to the transport beam exclusively by means of components of the crane undercarriage. In particular, the components for fastening the first connecting traverse and the second connecting traverse to the long support beam and to the transport beam include bolts which are required in the operational state of the crane undercarriage to connect the components of the crane undercarriage. As a result, no further components are required to form the rigid transport underframe other than the two connecting beams, the connecting element and the components of the crane undercarriage. This saves time and storage costs. To transport the crane undercarriage and to form the transport undercarriage, only the two connecting beams and the connecting element to the crane undercarriage must be brought along or present in a ready-to-use state.

In an advantageous development of the invention, the second longitudinal direction of the first short support beam corresponds to a fourth longitudinal direction of the transport beam. The long support beam and the transport beam can expediently be connected to one another by means of the first connecting traverse and the second connecting traverse in such a way that the first longitudinal direction of the long support beam runs parallel to the fourth longitudinal direction of the transport beam. In particular, the long support beam and the transport beam are at a distance from one another in the direction perpendicular to the first longitudinal direction. This makes it possible to create a stable transport base. Due to the distance between the transport beam and the support beam, the transport base frame can be designed with sufficient width to accommodate the other components of the crane undercarriage. The width of the first connecting traverse is advantageously at least 0.3 m, in particular at least 0.5 m, in particular at least 0.7 m. The same advantageously applies to the width of the second connecting traverse. In particular, the width of the first connecting traverse is at most 2.5 m, in particular at most 2.0 m, in particular at most 1.5 m. The same advantageously applies to the width of the second connecting traverse.

The first connecting traverse and the second connecting traverse expediently each have at least one attachment point, in particular at least one attachment point for a hook, preferably for a crane hook. As a result, the transport base frame can be easily connected to a lifting means, in particular a crane hook.

The connecting element is expediently designed so that the first short support beam, the connecting element and the second short support beam can be connected to one another exclusively by means of components of the crane undercarriage. In particular, the components for connecting the first short support beam, the connecting element and the second short support beam include bolts which are required in the operational state of the crane undercarriage to connect the components of the crane undercarriage. As a result, apart from the connecting element, only components of the crane undercarriage are required to form the transport beam, which are already required for the construction of the crane undercarriage. This saves material and storage costs. In addition, the risk of components required for transport being lost or forgotten is minimized. To form the transport beam, only the connecting element needs to be brought to the construction site or be present.

The long support beam has a first length measured in the first longitudinal direction. The transport bar extends in a fourth longitudinal direction. The transport bar has a total length measured in the fourth longitudinal direction. The connecting element is expediently designed so that a connection of the first short support beam and the second short support beam to the transport beam is possible in such a way that the total length of the transport beam is 90% to 110%, in particular 95% to 105%, preferably 100% of the first length of the long supporting beam. This means that the long support beam can be connected to the transport beam particularly easily and in a space-saving manner. This also makes it possible for external connection points of the respective support beams to be used when assembling the crane undercarriage for connection to other components of the crane undercarriage, for example for connecting to the support beams, can also be used for the connection between the long support beam and the connecting beams and the transport beam and the connecting beams. This enables the device set to be used for existing crane undercarriages.

In an advantageous development of the invention, the device set comprises a transport frame for holding components of the crane undercarriage. In particular, the transport frame is designed to be arranged on the transport base frame. The transport frame enables simple and comfortable transport of the components of the crane undercarriage that are not required to form the transport undercarriage.

In particular, the support beams have recesses for receiving tower shafts of a tower frame of the crane undercarriage. When the crane undercarriage is ready for use, the tower shafts of the tower frame are accommodated in the recesses in the support beams. The transport frame expediently has extensions. The transport frame is designed in particular so that the extensions correspond to the recesses in the support beams when the crane undercarriage is in transport state. In particular, the extensions of the transport frame engage in a form-fitting manner in the recesses of the support bars of the transport base frame. This means that the transport frame is stable and securely connected to the transport base. The transport frame can also contribute to the stability of the transport base through its connection to the transport base. The engagement of the extensions of the transport frame in the recess of the support bars secures the transport frame in particular against movement relative to the transport base frame in the direction of travel or against the direction of travel of the vehicle with which the crane undercarriage is transported. In particular, the positive connection acts in such a way that movement relative to the transport base frame in the direction of travel or against the direction of travel of the vehicle with which the crane undercarriage is transported is prevented. The positive connection advantageously prevents movement of the transport frame relative to the transport base frame in the first longitudinal direction of the long support beam.

The transport frame is expediently designed in such a way that the extensions of the transport frame can be inserted into the recesses in the support bars when the support bars are connected to the transport base frame. This makes it possible to easily connect the transport frame and the transport base.

In an advantageous development of the invention, the transport frame has attachment points, in particular attachment points for a lifting device, preferably for a crane hook. As a result, the transport frame can be easily lifted from the transport base frame by means of a lifting device, in particular by means of a crane. When unloading the crane undercarriage from the truck, the support beams are first required to assemble the crane undercarriage. The attachment points of the transport frame make it possible to first lift the transport frame from the truck and to place the transport frame with the other components of the crane undercarriage to the side. The transport undercarriage can then be lifted from the truck and placed in the location where the crane undercarriage is to be set up. In this way, it is possible for the supporting beams for the use of the crane undercarriage to be assembled first, without many individual parts of the crane undercarriage having to be unloaded and put aside beforehand. This makes the assembly order easy to follow. There is no need for laborious sorting of the individual parts of the crane undercarriage.

In particular, the transport frame is designed to accommodate components of the crane undercarriage, in particular to accommodate support bars and/or edge beams of the crane undercarriage. The transport frame expediently has a crossbar. The transport frame can advantageously be arranged on the transport base frame in such a way that the cross bar runs transversely to the first longitudinal direction of the long support beam. In particular, the crossbar limits movements of the components accommodated in the transport frame in the direction of the crossbar. In particular, the crossbar limits movements of the components held in the transport frame in the direction of travel of the truck. The crossbar enables effective load securing. During a braking process of the truck, the crossbar prevents the components accommodated in the transport frame from moving unhindered in the direction of travel relative to the truck due to their inertia.

The device set according to the invention is advantageously part of a crane underframe set, which includes a crane underframe and the device set.

The method according to the invention is used to create an elongated transport unit for transporting a crane undercarriage. The transport unit includes a transport base. The transport underframe is partly formed from components of the crane undercarriage. The corresponding components of the crane undercarriage are connected to one another in such a way that the transport undercarriage is rigid. The corresponding components of the crane undercarriage are connected to one another in such a way that the transport undercarriage can be used to accommodate further components of the crane undercarriage. Because components of the crane undercarriage are used to create the transport unit according to the method according to the invention, material and transport costs for a transport unit for transporting the crane undercarriage can be saved.

The crane undercarriage includes a long support beam that extends in a first longitudinal direction, a first short support beam that extends in a second longitudinal direction and a second short support beam that extends in a third longitudinal direction. In a further development of the method, it is provided that the first short support beam and the second short support beam are rigidly connected to one another to form a transport beam by means of a connecting element. In particular, the first short support beam and the second short support beam are connected to one another by means of the connecting element in such a way that they extend one behind the other with respect to the second longitudinal direction of the first short support beam. This allows the transport beam and the long support beam to be connected to one another in a simple manner.

The long support beam and the transport beam are expediently connected to a rigid transport base frame of the transport unit by means of a first connecting traverse and a second connecting traverse. In particular, the connection to the rigid transport base frame takes place in such a way that the long support beam and the transport beam lie next to one another in the direction transverse to the first longitudinal direction of the long support beam. This results in a stable and compact transport base. The two beams lying next to each other can be used to support other components of the crane undercarriage.

A transport frame for receiving components of the crane undercarriage is advantageously arranged in a form-fitting manner on the transport base frame. As a result, the components of the crane undercarriage that are not required to form the transport undercarriage can be easily accommodated in the transport frame. The transport frame makes it possible to lift the part of the components of the crane undercarriage, which is only required at a later point in time when assembling the crane undercarriage, from the transport undercarriage and initially put them to the side. Then access to the support bars of the transport underframe is free and access to the components of the crane undercarriage, which are required at the start of assembly, is possible quickly and easily. The positive connection advantageously prevents movement of the transport frame relative to the transport base frame in the first longitudinal direction of the long support beam.

Fig. 1

eine perspektivische Darstellung eines Kranunterwagens im einsatzfähigen Zustand,

Fig. 2

eine perspektivische Darstellung eines Transportuntergestells, das teilweise auf Bauteilen des Kranunterwagens aus Fig. 1 gebildet ist,

Fig. 3

ein in Fig. 2 mit III gekennzeichnetes Detail,

Fig. 4

eine perspektivische Darstellung eines Verbindungselements des Transportuntergestells aus Fig. 2,

Fig. 5

eine Seitenansicht des Verbindungselements aus Fig. 4,

Fig. 6

eine Schnittdarstellung eines Schnitts entlang der Schnittlinie VI-VI in Fig. 5,

Fig. 7

ein in Fig. 2 mit VIII gekennzeichnetes Detail,

Fig. 8 und 9

Seitenansichten einer ersten Verbindungstraverse des Transportuntergestells aus Fig. 2,

Fig. 10

eine Schnittdarstellung eines Schnitts entlang der Schnittlinie X-X aus Fig. 9,

Fig. 11

eine Seitenansicht eines Transportgestells, das gemeinsam mit dem Verbindungselement aus den Figuren 4 bis 6 und der Verbindungstraverse aus den Figuren 8 bis 10 Bestandteil eines Vorrichtungssets ist,

Fig. 12

Draufsicht auf das Transportgestell aus Fig. 11,

Fig. 13

Seitenansicht des Transportgestells aus Fig. 11,

Fig. 14

eine perspektivische Darstellung des Transportgestells aus den Figuren 11 bis 13, das mit Bauteilen des Kranunterwagens aus Fig. 1 beladen ist und

Fig. 15

eine perspektivische Darstellung einer Transporteinheit, die das Transportuntergestell aus Fig. 2 und das darauf angeordnete, mit Bauteilen des Kranunterwagens aus Fig. 1 beladene Transportgestell aus Fig. 14 umfasst.

An exemplary embodiment of the invention is explained below with reference to the drawing. Show it:

Fig. 1

a perspective view of a crane undercarriage in operational condition,

Fig. 2

a perspective view of a transport undercarriage, which is partly based on components of the crane undercarriage Fig. 1 is formed,

Fig. 3

an in Fig. 2 Detail marked III,

Fig. 4

a perspective view of a connecting element of the transport base Fig. 2 ,

Fig. 5

a side view of the connecting element Fig. 4 ,

Fig. 6

a sectional view of a section along section line VI-VI in Fig. 5 ,

Fig. 7

an in Fig. 2 detail marked VIII,

8 and 9

Side views of a first connecting traverse of the transport base frame Fig. 2 ,

Fig. 10

a sectional view of a section along the section line XX Fig. 9 ,

Fig. 11

a side view of a transport frame, which together with the connecting element from the Figures 4 to 6 and the connecting traverse from the Figures 8 to 10 is part of a device set,

Fig. 12

Top view of the transport frame Fig. 11 ,

Fig. 13

Side view of the transport frame Fig. 11 ,

Fig. 14

a perspective view of the transport frame from Figures 11 to 13, which consists of components of the crane undercarriage Fig. 1 is loaded and

Fig. 15

a perspective view of a transport unit, which consists of the transport base Fig. 2 and that arranged on it, with components of the crane undercarriage Fig. 1 loaded transport frame Fig. 14 includes.

Fig. 1 shows a crane undercarriage 2. The crane undercarriage 2 is in an operational state 50. The crane undercarriage 2 serves as a base of a crane, in particular a tower crane. In the exemplary embodiment, the crane undercarriage 2 serves as the base of a tower crane. Except those in Fig. 1 As shown in the components of the crane undercarriage 2, the crane undercarriage 2 also includes weighting elements. As a rule, the weighting elements are made of concrete. The weighting elements ensure that the crane undercarriage 2 stands securely. The crane undercarriage 2 also has a sufficiently large footprint in the operational state 50 to ensure that the crane undercarriage 2 stands securely. The footprint of the crane undercarriage 2 corresponds to the outline of a vertical projection of the crane undercarriage 2 onto the ground. The standing area of the crane undercarriage 2 has a first standing width b1 and a second standing width b2. The first stand width b1 extends transversely, in the exemplary embodiment perpendicular to the extent of the second stand width b2. In the exemplary embodiment, the first stand width b1 and the second stand width b2 are the same size. In the exemplary embodiment, the footprint of the crane undercarriage 2 is square. The first stand width b1 and the second stand width b2 are larger than the width of the loading area of the truck. The width of the loading area of the truck is measured in the direction transverse to the direction of travel of the truck.

The crane undercarriage 2 has a long support beam 4. The long support beam 4 extends in a first longitudinal direction 5. In the operational state 50 of the crane undercarriage 2, the first longitudinal direction 5 of the long support beam runs diagonally to the footprint of the crane undercarriage 2. The crane undercarriage 2 has a first short one Support beam 10 and a second short support beam 12. The first short support beam 10 extends in a second longitudinal direction 11. The second short support beam 12 extends in a third longitudinal direction 13. In the operational state 50 of the crane undercarriage 2, the second longitudinal direction 11 of the first short support beam 10 and the third longitudinal direction 13 of the second extend short support beam 12 in the same direction. The first short support beam 10 and the second short support beam 12 are arranged one behind the other with respect to the second longitudinal direction 11 and with respect to the third longitudinal direction 13, respectively. The first short support beam 10 and the second short support beam 12 together form an overall beam. The long support beam 4 crosses the overall beam. In the operational state 50 of the crane undercarriage 2, the entire spar is arranged diagonally to the footprint of the crane undercarriage 2. The long support beam 4 is arranged between the first short support beam 10 and the second short support beam 12. The first short support beam 10 is attached to the long support beam 4. The second short support beam 12 is attached to the long support beam 4. The first short support beam 10 abuts with its end face against the long support beam 4. The second short support beam 12 abuts with one end face against the long support beam 4. The long support beam 4, the first short support beam 10 and the second short support beam 12 together form a cross . The entire spar runs at right angles to the long supporting spar 4.

The long supporting beam 4 is made of steel. The long support beam 4 is made in particular from a hollow profile. It can also be provided that the long supporting beam is a double-T beam. The long support beam 4 is made in particular from a square tube. The first short supporting beam 10 is made of steel. The first short support beam 10 is made in particular from a hollow profile. It can also be provided that the first short support beam is a double-T beam. The first short support beam 10 is made in particular from a square tube. The second short support beam 12 consists from steel. The second short support beam 12 is made in particular from a hollow profile. It can also be provided that the second short supporting beam is a double-T beam. The second short support beam 12 is made in particular from a square tube. In the exemplary embodiment, the long support beam 4 is in one piece. However, it can also be provided that the long support beam comprises two individual support beams, analogous to the overall beam. In this case, the two individual support beams, the first short support beam and the second short support beam, are connected to one another via a central connecting part.

The long supporting beam 4 has in Fig. 2 Fastening openings 14 shown for fastening the first short support beam 10. The first short support beam 10 has fastening openings 44, which in the operational state 50 ( Fig. 1 ) correspond to the fastening openings 14 of the long support beam 4. The long supporting beam 4 has in Fig. 2 Fastening openings 16 shown for fastening the second short support beam 12. The second short support beam 12 has fastening openings 46. The fastening openings 46 of the second short support beam 12 correspond in the operational state 50 ( Fig. 1 ) with the fastening openings 16 of the long support beam 4. To fasten the first short support beam 10 to the long support beam 4, through the fastening openings 44 of the first short support beam 10 and through the fastening openings 14 of the long support beam 4 in Fig. 1 Bolts not shown inserted. The bolts are secured with security elements, in particular with bending pins. The securing elements secure the bolts against slipping out of the fastening openings. In an analogous manner, to fasten the second short support beam 12 to the long support beam 4, bolts are inserted through the fastening openings 16 of the long support beam 4 and through the fastening openings 46 of the second short support beam 12. The bolts are secured with security elements, in particular with bending pins.

The fastening openings 14 and 16 of the long support beam 4 are made in plates 17, which extend transversely, in the exemplary embodiment perpendicular, to the first longitudinal direction 5 of the long support beam 4 extend. The plates 17 are part of the long support beam 4. The plates 17 protrude in the direction transversely, in the exemplary embodiment perpendicular, to the first longitudinal direction 5 of the long support beam 4 over a base body 29 of the long support beam 4 ( Fig. 2 ). In the operational state 50 of the crane undercarriage 2, the plates 17 correspond to extensions 47 of the first short support beam 10 or with extensions 48 of the second short support beam 12 ( Fig. 1 ). The fastening openings 44 of the first short support beam 10 are arranged in the extensions 47 ( Fig. 3 ). The fastening openings 46 of the second short support beam 12 are arranged in the extensions 48. The extensions 47 protrude over a first base body 51 of the first short support beam 10 in the second longitudinal direction 11. The extensions 48 protrude over a second base body 52 of the second short support beam 12 against the third longitudinal direction 13 of the second short support beam 12. As in Fig. 1 As can be seen, the extensions 47 of the first short support beam 10 are arranged between the plates 17 of the long support beam 4 in the operational state 50 of the crane undercarriage 2 with respect to the first longitudinal direction 5 of the long support beam 4. The extensions 48 of the second short support beam 12 are arranged between the plates 17 of the long support beam 4 in the operational state 50 of the crane undercarriage 2 with respect to the first longitudinal direction 5 of the long support beam 4.

The long support beam 4 and the overall beam are connected at their outer longitudinal ends by means of edge supports 42 when the crane undercarriage 2 is in the operational state 50 ( Fig. 1 ). The edge supports 42 are detachably attached to the bars. A total of four edge supports 42 are provided in the exemplary embodiment. In the operational state 50 of the crane undercarriage 2, the edge supports 42 delimit a rectangle, in the exemplary embodiment a square.

The crane undercarriage 2 includes a tower frame 35. The tower frame 35 is arranged on the long support beam 4 and on the overall beam. The long support beam 4 has a first recess 25. The long support beam 4 has a second recess 26. The Recesses 25, 26 are arranged on an upper side of the long support beam 4 in the operational state 50 of the crane undercarriage 2. The recesses 25 and 26 form a receptacle for the tower frame 35. The tower frame 35 includes tower shafts 31, 32, 33 and 34. The tower shafts 31, 32, 33 and 34 form the outer corners of the tower frame 35. The tower shaft 31 corresponds in the operational state 50 of the crane undercarriage 2 with the first recess 25 in the long support beam 4. The second tower shaft 32 corresponds in the operational state 50 of the crane undercarriage 2 with the second recess 26 in the long support beam 4. The first short support beam 10 has a first recess 27. The first recess 27 serves to accommodate the tower shaft 33. When the crane undercarriage 2 is in the operational state 50, the first recess 27 corresponds to the tower shaft 33. The second short support beam 12 has a second recess 28. The second recess 28 serves to accommodate the tower shaft 34. When the crane undercarriage is in the operational state 50, the second recess 28 corresponds to the tower shaft 34. The tower frame 35 is with the tower shafts 31, 32, 33 and 34 in the recesses 25, 26, 27 and 28 inserted.

In the operational state 50 of the crane undercarriage 2, an upper longitudinal end of the tower frame 35 is connected by means of support bars 41 to the outer longitudinal ends of the long support bar 4 and the outer longitudinal ends of the overall bar. The support bars 41 are detachably attached to the bars. The support bars 41 are detachably attached to the tower frame 35. The support bars 41 are each connected to an assigned tower shaft 31, 32, 33 or 34.

In order to be able to transport the crane undercarriage 2, it must be dismantled into its individual components. The crane undercarriage 2 is supported by the in Fig. 1 shown operational state 50 into an in Fig. 2 or Fig. 15 transport state 49 shown. In the transport state 49, the components of the crane undercarriage 2 are at least partially connected to form an elongated transport unit 3 ( Fig. 15 ). The elongated transport unit 3 has a width b. The width b is smaller than the width of the loading area of a truck, with the width of the loading area in the direction transverse to the Direction of travel of the truck is measured. The width b of the elongated transport unit 3 is smaller than the first standing width b1 of the crane undercarriage 2 in the operational state 50 ( Fig. 1 ). The width b of the elongated transport unit 3 is smaller than the second standing width b2 of the crane undercarriage 2 in the operational state 50 ( Fig. 1 ).

The elongated transport unit 3 includes at least the in Fig. 2 transport base 8 shown. The transport base 8 is rigid. The transport base frame 8 is not designed to allow relative movements of its individual components to one another in the transport state 49. The transport underframe 8 is constructed from the long support beam 4 of the crane undercarriage 2, the first short support beam 10 of the crane undercarriage 2 and the second short support beam 12 of the crane undercarriage 2. The first short support beam 10 and the second short support beam 12 are in the transport state 49 of the crane undercarriage 2 connected to each other by means of a connecting element 15. The connecting element 15 rigidly connects the first short support beam 10 and the second short support beam 12 to one another. A transport beam 18 is formed by the first short support beam 10, the connecting element 15 and the second short support beam 12. The transport bar 18 is rigid. Through the connecting element 15, the first short support beam 10 and the second short support beam 12 can be connected to one another in such a way that they extend one behind the other with respect to the second longitudinal direction 11 of the first short support beam 10. The connecting element 15 connects a longitudinal end of the first short support beam 10 to another longitudinal end of the second short support beam 12. The connecting element 15 is part of a device set 1 ( Fig. 15 ). The device set 1 is designed separately from the crane undercarriage 2. The device set 1 is used to connect components of the crane undercarriage 2 to the elongated transport unit 3. The device set 1 can be a retrofit kit for an existing crane undercarriage. In the event that the long support beam comprises two individual support beams, the device set can include a further connecting element which is provided for rigidly connecting the individual support beams to a second transport beam. Instead of the long support beam, the second transport beam is then connected to the transport beam.

The device set 1 includes an in Fig. 2 shown first connecting traverse 6 and a second connecting traverse 7. The first connecting traverse 6 and the second connecting traverse 7 are designed so that they can be used to connect the long support beam 4 and the transport beam 18 to the rigid transport base frame 8. The first connecting traverse 6 and the second connecting traverse 7 are designed so that the long support beam 4 and the transport beam 18 lie next to each other in the transverse direction, in the exemplary embodiment in the direction perpendicular to the first longitudinal direction 5 of the long support beam 4. In particular, the transport bar 18 has a minimum distance from the long support bar 4 measured in the direction perpendicular to the first longitudinal direction 5 of the long support bar 4. The transport base 8 is essentially frame-shaped. The transport beam 18, the long support beam 4, the first connecting traverse 6 and the second connecting traverse 7 form a frame. The transport bar 18 lies opposite the long support bar 4. The first connecting traverse 6 lies opposite the second connecting traverse 7.

Fig. 3 shows a detail Fig. 2 . The connecting element 15 is designed so that the first short support beam 10, the connecting element 15 and the second short support beam 12 can be connected to one another exclusively by means of components of the crane undercarriage 2. The components of the crane undercarriage 2 that are required to form the transport beam 18 are the first short support beam 10, the second short support beam 12, bolts 20 and securing elements 45. In the exemplary embodiment, the securing elements 45 are designed as bending pins. The bolts 20 are used in the operational state 50 of the crane undercarriage 2 to connect the first short support beam 10 and the second short support beam 12 to the long support beam 4. The security elements 45 are also used for this purpose. In the transport state 49 of the crane undercarriage 2, the bolts 20 and the securing elements 45 are used to connect the first short support beam 10 and the second short support beam 12 by means of the connecting element 15.

The connecting element 15 has fastening openings 53. This is also in the Figures 4 to 6 shown. The fastening openings 53 penetrate the connecting element 15 completely. The fastening openings 53 penetrate the connecting element 15 in the transport state 49 in the direction transversely, in the exemplary embodiment perpendicular, to the second longitudinal direction 11 of the first short support beam 10 ( Fig. 3 ). To connect the connecting element 15 to the first short support beam 10 and/or to the second short support beam 12, a bolt 20 is inserted through the fastening openings 53 of the connecting element 15 and through the fastening openings 44 of the first short support beam 10 or through the fastening openings 46 of the second short one Support beam 12 inserted and secured with a securing element45. In the exemplary embodiment, a total of four bolts 20 are provided for connecting the connecting element 15 to the first support beam 10 and the second short support beam 12.

In the exemplary embodiment, the connecting element 15 is designed as a connecting frame. As in Fig. 4 shown, the connecting element 15 has two plates 54. The plates 54 are arranged at a distance from one another. The plates 54 are firmly connected to one another by a connecting bolt 55. Four fastening openings 53 are made in one plate 54. Four fastening openings 53 are also made in the other plate 54. The fastening openings 53 of the plates 54 lie opposite each other in pairs with respect to the direction transverse to the longitudinal direction 11 of the first short support beam 10. A bolt 20 is inserted through two fastening openings 53.

As in Fig. 3 shown, the extensions 47 of the first short support beam 10 are arranged between the plates 54 of the connecting element 15 in the transport state 49 of the crane undercarriage 2. In an analogous manner, the extensions 48 of the second short support beam 12 are arranged between the plates 54 of the connecting element 15 in the transport state 49 of the crane undercarriage 2. The connecting element 15 surrounds the first short support beam 10 on its long sides. The connecting element 15 surrounds the second short support beam 12 on its long sides.

As in Fig. 2 shown, the long support beam 4 has a first length 11 measured in the first longitudinal direction 5 of the long support beam 4. The first short support beam 10 has a third length 13 measured in the second longitudinal direction 11 of the first short support beam 10. The second short support beam 12 has a fourth length 14 measured in the third longitudinal direction 13 of the second short support beam 12. The first length 11 of the long support beam 4 is greater than the third length 13 of the first short support beam 10. The first length l1 of the long support beam 4 is greater than the fourth length l4 of the second short support beam 12. The first length l1 is more than twice as large as the third length l3. The first length l1 is more than twice as large as the fourth length l4.

The transport beam 18 extends in a fourth longitudinal direction 19. In the transport state 49 of the crane undercarriage 2, the fourth longitudinal direction 19 of the transport beam 18 corresponds to the second longitudinal direction 11 of the first short support beam 10. In the transport state 49 of the crane undercarriage 2, the fourth longitudinal direction 19 of the transport beam 18 corresponds to the third longitudinal direction 13 of the second short support beam 12. The transport beam 18 has a total length 12 measured in the fourth longitudinal direction 19. The connecting element 15 is designed so that a connection of the first short support beam 10 and the second short support beam 12 to the transport beam 18 by means of the connecting element 15 is possible in such a way that the total length 12 of the transport beam 18 is 90% to 110%, in particular 95% to 105%, in the exemplary embodiment 100%, corresponds to the first length 11 of the long support beam 4.

The transport bar 18 and the long support bar 4 are arranged at the same height in the exemplary embodiment with respect to the first longitudinal direction 5 of the long support bar 4. With respect to the first longitudinal direction 5 of the long support beam 4, the long support beam 4 and the transport beam 18 in particular have a common beginning and a common end.

Fig. 7 shows a detail Fig. 2 . The first connecting traverse 6 is preferably designed so that it can be attached to the long support beam 4 and to the transport beam 18 exclusively by means of components of the crane undercarriage 2. In an analogous manner, the second connecting traverse 7 is designed so that it can be attached to the long support beam 4 and to the transport beam 18 exclusively by means of components of the crane undercarriage 2. The components of the crane undercarriage 2 for fastening the first connecting beam 6 are bolts 20 and securing elements 45. As in Fig. 1 As can be seen, the bolts 20 are used in the operational state 50 of the crane undercarriage 2 to connect the long support beam 4 to the support beams 41. The bolts 20 are also used to connect the first short support beam 10 to one of the support beams 41 and to connect the second short support beam 12 to another of the support beams 41. The bolts 20 are each inserted using in Fig. 1 securing elements 45, not shown.

The Figures 8 to 10 show the first connecting traverse 6 in various representations. The second connecting traverse 7 is identical to the first connecting traverse 6. The first connecting traverse 6 has a crossbar 56. The crossbar 56 connects two opposing engagement elements 57 of the connecting traverse 6 to one another. In the transport state 49 of the crane undercarriage 2, the engagement elements 57 lie opposite each other in the transverse direction, in the exemplary embodiment in the direction perpendicular to the first longitudinal direction 5 of the long support beam 4.

The engagement elements 57 each have a continuous fastening opening 58 which is in the Figures 9 and 10 is shown. In the transport state 49, the fastening opening 58 penetrates the first connecting cross member 6 in the direction perpendicular to the first longitudinal direction 5 of the long support beam 4.

At their longitudinal ends, the transport beam 18 and the long support beam 4 each have two plate projections 59, as in Fig. 2 shown. The plate projections 59 of the long support beam 4 are in the operational state 50 ( Fig. 1 ) compared to the Basic body 29 ( Fig. 2 ) upwards. The long support beam 4 has two plate projections 59 at each of its longitudinal ends. The plate projections 59 of the first short support beam 10 and the second short support beam 12 are in the operational state 50 of the crane undercarriage 2 ( Fig. 1 ) relative to the first base body 51 of the first short support beam 10, or relative to the second base body 52 of the second short support beam 12 ( Fig. 2 ) upwards. The first short support beam 10 and the second short support beam 12 each have two plate projections 59 only at one of their longitudinal ends. How Fig. 7 As an example, each plate projection 59 has a fastening opening 60. In the transport state 49, the engagement elements 57 of the connecting traverses 6, 7 are arranged between the plate projections 59. The fastening openings 60 of the plate projections 59 correspond to the fastening openings 58 of the engagement elements 57 in the transport state 49 of the crane undercarriage 2. To fasten the first connecting cross member 6 or the second connecting cross bar 7, a bolt 20 is passed through the fastening openings 60 of two plate projections 59 and through the fastening opening 58 of the respective engagement element 57 inserted. The bolt 20 is secured with a securing element 45.

As in Fig. 7 shown, the first connecting traverse 6 has a first stop point 21, in particular for a crane hook. In an analogous manner, the second connecting traverse 7 has an in Fig. 2 shown first attachment point 23 in particular for a crane hook. The first connecting traverse 6 has a second attachment point 22, in particular for a crane hook ( Fig. 7 ). The second connecting traverse 7 has a second attachment point 24, in particular for a crane hook ( Fig. 2 ). In the exemplary embodiments, the stop points are formed by connecting pins between side parts 61 of the respective engagement elements 57.

The Figures 11 to 13 show a transport frame 30. The transport frame 30 is part of the device set 1. The transport frame 30 is used to hold components of the crane undercarriage 2. The transport frame 30 is used in particular to hold them of components of the crane undercarriage 2, which are not part of the transport undercarriage 8 in the transport state 49 of the crane undercarriage 2. The transport frame 30 has a floor 64. The floor 64 is designed like a grid in the exemplary embodiment. The transport frame 30 has side limiting elements 65. As can be seen from the overview Figures 11 to 13 and the Fig. 2 As can be seen, the transport frame 30 is designed to be arranged on the transport base frame 8.

The transport frame 30 has in the Figures 11 to 13 at least partially shown extensions 36, 37, 38 and 39. The transport frame 30 has a main body 62. The extensions 36, 37, 38 and 39 protrude downwards over the main body 62 of the transport frame 30 in the transport state 49 of the crane undercarriage 2. The extensions 36, 37, 38 and 39 protrude downwards over the floor 64 of the transport frame 30 in the transport state 49 of the crane undercarriage 2. The extensions 36, 37, 38 and 39 correspond in the transport state 49 of the crane undercarriage 2 with the recesses 25, 26, 27 and 28 of the support beams 4, 10 and 12. From the synopsis of Figures 11 to 13 , 15 and 2 It can be seen that the extension 36 in the transport state 49 corresponds to the first recess 25 of the long support beam 4. The extension 37 corresponds to the second recess 26 of the long support beam 4. The extension 37 corresponds to the first recess 27 of the first short support beam 10. The extension 38 corresponds to the second recess 28 of the second short support beam 12. The transport frame 30 is designed in this way that the extensions 36, 37, 38 and 39 of the transport frame 30 can be plugged into the recesses 25, 26, 27 and 28 of the support bars 4, 10 and 12 when the support bars 4, 10 and 12 are connected to the transport base frame 8.

Like in the Figures 11 to 13 shown, the transport frame has 30 attachment points 40, in particular for one crane hook each. A total of four attachment points 40 are provided on the transport frame 30, in particular for crane hooks. In the exemplary embodiment, the attachment points 40 of the transport frame 30 are designed as eyelets. It can also be provided that the transport unit 3 is designed so that lifting of the transport frame 30 from the transport base frame 8 using a forklift is possible. In particular, a gap can be provided between the transport base frame 8 and the transport frame 30 if the transport frame 8 is arranged on the transport base frame 30.

The transport frame 30 is designed to hold components of the crane truck 2. As in Fig. 14 shown, the transport frame 30 is designed to accommodate support bars 41 and edge supports 42 of the crane undercarriage 2. In the exemplary embodiment, the transport frame 30 can accommodate a total of four support bars 41 and four edge supports 42.

The transport frame 30 has one in the Figures 11 to 14 cross bar 43 shown. As in Fig. 15 shown, the transport frame 30 can be arranged on the transport base frame 8 in such a way that the cross bar 43 runs transversely, in the exemplary embodiment perpendicular, to the first longitudinal direction 5 of the long support beam 4. The crossbar 43 is arranged so that it limits movements of the components accommodated in the transport frame 30 in the direction of the crossbar 43.

As in Fig. 14 shown, 2 securing rods 63 can be provided to secure the components of the crane undercarriage accommodated in the transport frame 30. The securing rods 63 are held on the transport frame 30 and prevent the components accommodated in the transport frame 30 from moving upwards. It can be provided that the securing rods 63 press the components downwards.

To prepare a crane undercarriage 2 in operational condition 50 ( Fig. 1 ) for transport, the elongated transport unit 3 is created. The transport unit 3 includes the transport base 8 ( Fig. 2 ). The transport underframe 8 is partly formed from components of the crane undercarriage 2. Here, the components of the crane undercarriage 2 are connected to one another in such a way that the transport undercarriage 8 is rigid. The components of the crane undercarriage, which form the transport undercarriage 8, are thus connected to one another connected that the transport base frame 8 can be used to accommodate further components of the crane undercarriage 2. For this purpose, the first short support beam 10 and the second short support beam 12 are rigidly connected to one another to form the transport beam 18 by means of the connecting element 15 ( Figures 2 to 6 ). The first short support beam 10, the connecting element 15 and the second short support beam 12 are connected to one another in such a way that they extend one behind the other with respect to the second longitudinal direction 11 of the first short support beam 10.

The long support beam 4 and the transport beam 18 are then connected to the rigid transport base frame 8 of the transport unit 3 by means of the first connecting traverse 6 and the second connecting traverse 7 ( Fig. 2 ). The long support beam 4 and the transport beam 18 are connected to one another by means of the first connecting traverse 6 and the second connecting traverse 7 so that the long support beam 4 and the transport beam 18 lie next to each other in the direction transverse to the first longitudinal direction 5 of the long support beam 4.

Then it will be in the Figures 11 to 13 Transport frame 30 shown for receiving the components of the crane undercarriage is arranged in a form-fitting manner on the transport underframe 8 ( Fig. 15 ). Before the transport frame 30 is arranged on the transport base frame 8 or even afterwards, components of the crane undercarriage 2 can be accommodated in the transport frame 30 ( Fig. 14 ). In the exemplary embodiment, support bars 41 and edge supports 42 of the crane undercarriage 2 are accommodated in the transport frame 30.

In the Fig. 15 Transport unit 3 shown can be lifted onto a truck using a crane. For this purpose, lifting means, in particular hooks of the crane, are connected to the attachment points 21, 22, 23 and 24 of the connecting beams 6 and 7. The transport unit 3 is then lifted onto the truck using a single crane lift to transport the entire crane undercarriage 2. Even unloading the crane undercarriage 2 from the truck only requires a single crane lift. Again, lifting devices, in particular hooks of a crane, are used here the attachment points 21, 22, 23 and 24 of the transport unit 3 are attached. The transport unit 3 is lifted from the truck with a single crane lift. Before or after this unloading stroke, it can be provided that the transport frame 30 is lifted from the transport base frame 8 by means of a crane lift. For this purpose, lifting means, in particular hooks of the crane, are attached to the attachment points 40 of the transport frame 30.

Claims (15)

Device set for connecting components of a crane undercarriage (2) to an elongated transport unit (3), the components of the crane undercarriage (2) comprising at least: - a long support beam (4) which extends in a first longitudinal direction (5), - a first short support beam (10) which extends in a second longitudinal direction (11) and - a second short support beam (12) which extends in a third longitudinal direction (13), wherein the crane undercarriage (2) has an operational state (50) in which the components of the crane undercarriage (2) are connected to one another for use as the undercarriage of a crane, wherein the crane undercarriage (2) has a transport state (49) in which the Components of the crane undercarriage (2) are at least partially connected to the elongated transport unit (3), with the first short support beam (10) and the second short support beam (12) forming an overall beam in the operational state (50) of the crane undercarriage (2). the long support beam (4) crosses, the device set (1) comprising at least: - a first connecting traverse (6), - a second connecting traverse (7) and - a connecting element (15), wherein the connecting element (15) is designed so that the first short support beam (10) and the second short support beam (12) are rigidly connected to one another in the transport state (49) of the crane undercarriage (2) by means of the connecting element (15). Transport spar (18) can be connected to one another so that they extend one behind the other with respect to the second longitudinal direction (11), the first connecting traverse (6) and the second connecting traverse (7) being designed in such a way that they connect the long support spar (4 ) and the transport bar (18) to a rigid transport base (8) of the transport unit (3) is possible, so that the long support bar (4) and the transport bar (18) in the direction transverse to the first longitudinal direction (5) of the long support bar (4 ) lie next to each other. Device set according to claim 1,
characterized in that the first connecting traverse (6) and the second connecting traverse (7) are designed so that they can be attached to the long support beam (4) and to the transport beam (18) exclusively by means of components of the crane undercarriage (2), and that the components for fastening the first connecting traverse (6) and the second connecting traverse (7) include in particular bolts (20), which are required in the operational state (50) of the crane undercarriage (2) to connect the components of the crane undercarriage (2). Device set according to claim 1 or 2,
characterized in that the second longitudinal direction (11) of the first short support beam (10) corresponds to a fourth longitudinal direction (19) of the transport beam (18), that the long support beam (4) and the transport beam (18) by means of the first connecting traverse (6) and the second connecting traverse (8) can be connected to one another in such a way that the first longitudinal direction (5) of the long support beam (4) runs parallel to the fourth longitudinal direction (19) of the transport beam (18), the long support beam (4) and the transport beam ( 18) have a distance (d) from one another in the direction perpendicular to the first longitudinal direction (5). Device set according to one of claims 1 to 3,
characterized in that the first connecting traverse (6) and the second Connecting traverse (7) each have at least one stop point (21, 22, 23, 24), in particular for a crane hook. Device set according to one of claims 1 to 4,
characterized in that the connecting element (15) is designed such that the first short support beam (10), the connecting element (15) and the second short support beam (12) can be connected to one another exclusively by means of components of the crane undercarriage (2), and that Components for connecting the first short support beam (10), the connecting element (15) and the second short support beam (12), in particular bolts (20), which in the operational state (50) of the crane undercarriage (2) for connecting the components of the crane undercarriage ( 2) are required. Device set according to one of claims 1 to 5,
characterized in that the long support beam (4) has a first length (l1) measured in the first longitudinal direction (5), that the connecting element (15) is designed so that a connection of the first short support beam (10) and the second short one Lower spar (12) to the transport spar (18), which extends in the fourth longitudinal direction (19), is possible by means of the connecting element (15) in such a way that a total length (12) of the transport spar (18) measured in the fourth longitudinal direction (19). ) 90% to 110%, in particular 95% to 105%, preferably 100% of the first length (11) of the long support beam (4). Device set according to one of claims 1 to 6,
characterized in that the device set (1) comprises a transport frame (30) for receiving components of the crane undercarriage (2), and in that the transport frame (30) is designed to be arranged on the transport underframe (8). Device set according to claim 7,
characterized in that the support bars (4, 10, 12) have recesses (25, 26, 27, 28) for receiving tower shafts (31, 32, 33, 34) of a tower frame (35) of the crane undercarriage (2) in the operational state ( 50) of the crane undercarriage (2) have that the transport frame (30) has extensions (36, 37, 38, 39), which in the transport state (49) of the crane undercarriage (2) with the recesses (25, 26, 27, 28) the support bars (4, 10, 12) correspond. Device set according to claim 8,
characterized in that the transport frame (30) is designed such that the extensions (36, 37, 38, 39) of the transport frame (30) fit into the recesses (25, 26, 27, 28) of the support bars (4, 10, 12 ) can be plugged in if the support bars (4, 10, 12) are connected to the transport base (8). Device set according to one of claims 7 to 9,
characterized in that the transport frame (30) has attachment points (40), in particular for a crane hook. Device set according to one of claims 7 to 10,
characterized in that the transport frame (30) is designed to accommodate components of the crane undercarriage (2), in particular to accommodate support bars (41) and / or edge supports (42) of the crane undercarriage (2), that the transport frame (30) has a cross bar (43), and that the transport frame (30) can be arranged on the transport base frame (8) in such a way that the cross bar (43) runs transversely to the first longitudinal direction (5) of the long support beam (4) and movements of the transport frame (30 ) recorded components limited in the direction of the cross bar (43). Method for creating an elongated transport unit (3) for transporting a crane undercarriage (2), the transport unit (3) comprising a transport undercarriage (8), the transport undercarriage (8) being partially formed from components of the crane undercarriage (2), which are as follows be connected to each other, that the transport base frame (8) is rigid, and that the transport base frame (8) can be used to accommodate further components of the crane undercarriage (2). Method according to claim 12,
characterized in that the crane undercarriage (2) comprises: - a long support beam (4) which extends in a first longitudinal direction (5), - a first short support beam (10) which extends in a second longitudinal direction (11) and - a second short support beam (12) which extends in a third longitudinal direction (13), wherein the first short support beam (10) and the second short support beam (12) are rigidly connected to one another to form a transport beam (18) by means of a connecting element (15), so that they extend one behind the other with respect to the second longitudinal direction (11). Method according to claim 13,
characterized in that the long support beam (4) and the transport beam (18) are connected by means of a first connecting traverse (6) and a second connecting traverse (7) to form a rigid transport base (8) of the transport unit (3), so that the long support beam (4) and the transport bar (18) lie next to each other in the direction transverse to the first longitudinal direction (5) of the long support bar (4). Method according to claim 13 or 14,
characterized in that a transport frame (30) for receiving components of the crane undercarriage (2) is arranged in a form-fitting manner on the transport base frame (8).

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