EP2321462B1 - Slipform paver - Google Patents

Description

The invention relates to a slipform paver with a landing gear carrying a height-adjustable machine frame, the machine frame having a mounting unit for mounting a device for molding flowable material. Moreover, the invention relates to a device for molding flowable material for a slipform paver and a slipform paver with a device for molding flowable material.

Slipform pavers are known for continuously producing components from a flowable material. With the known Gleichschalungsfertigern example road surfaces, baffles or gullies can be made of concrete. The known slipform pavers have a device in which the flowable material is brought into the desired shape. Such a device for molding the flowable material is also referred to as Betonmulde. For the production of components with different cross sections, the concrete troughs must be replaced. Therefore, the known slipform pavers have a mounting unit, can be attached to the concrete troughs of different training.

The DE-A-196 44 397 describes a slipform paver with a replaceable concrete trough. On the machine frame of the slipform paver a height-adjustable and transversely movable to the working direction mounting unit is provided to which a corresponding mounting unit can be attached, which is provided on the concrete trough. The assembly unit of the slipform paver has paired and oppositely rotatable retaining claws, while the mounting unit of the concrete trough has mutually parallel support rods. To accommodate the concrete trough, the assembly unit of the slipform paver is positioned over the assembly unit of the concrete trough. Then the mounting unit of Slipform paver lowered. Then the retaining claws are pivoted by means of piston / cylinder arrangements, so that they engage around the support rods.

On the one hand proves to be disadvantageous that the pivotable retaining claws need not only record the entire weight of the concrete well, but also all the reaction forces resulting from the application. Therefore, the piston / cylinder assemblies must be permanently pressurized. Otherwise, the retaining claws could pivot under the loads from the locking position to the open position. On the other hand, it is disadvantageous that the assembly unit of the slipform paver must be positioned exactly above the assembly unit of the concrete trough in order to be able to embrace the handrails with the retaining claws. It is also disadvantageous that after exact alignment of the concrete trough the last feed movement takes place before locking from top to bottom. In case of incorrect operation, therefore, a large part of the machine weight can rest on the concrete trough or the changing device, which can lead to damage of the same.

In practice it has been found that the changing device during operation of the slipform paver not only has to absorb the weight of the concrete trough, but is also charged in the opposite direction. This is the case, for example, when the concrete trough is lowered to change the height of the component to be produced during the feed of the slipform paver. Then the changing device must absorb the forces acting on the trough by the concrete. But the changing device with the pivotable retaining claws is not optimally designed because all forces, regardless of their origin and their direction, must be taken only by the hinged retaining claws.

From the EP-A-2 048 284 a slipform paver having the features of the preamble of claim 1 with a changing device is known in which two superimposed rods of the concrete trough are suspended in two superimposed claw-shaped fastening elements which are fixedly connected to the machine frame of the slipform paver. To lock the support rods in the fasteners is a pivotable retaining claw, which overlaps one of the two support rods in the locked position. Also In this changing device proves to be disadvantageous that the largest forces acting against the weight forces must be absorbed by the pivotable retaining claw. In addition, the replacement of the concrete trough again requires an exact alignment of fasteners and handrails. This complicates the fact that the fasteners must be moved up to the mounting unit of the slipform paver from below to the support rods of the assembly unit of the concrete pit. This requires prior to locking a delivery movement below the handrails laterally against the concrete trough, which may have the consequence that the concrete trough, which is always higher and longer than wide, can be brought to overturn.

The US 2003/0113165 A1 describes a hand-operated device for the continuous production of components made of a flowable material. The known device has a hand-to-travel and by hand in height to be adjusted frame carrying a chute. On the chute, a U-shaped trough is attached by means of screws and nuts, which serves to mold the continuously applied material. Although the attachment of the U-shaped recess on the chute basically allows the same exchange, the relatively complex attachment of the trough to the chute by means of screws and nuts can be made only by hand. However, this is basically not a disadvantage in a hand-operated device.

From the GB 2 331 064 A is a change system for an excavator known in which the arm of the excavator has claw-shaped fasteners and the excavator bucket on cylindrical holding elements.

The invention is based on the object to provide a slipform paver, to which a device for molding a flowable material can be easily and securely attached. In addition, it is an object of the invention to provide an apparatus for molding flowable material for a slipform paver which can be easily and securely attached to the slipform paver.

The solution of these objects is achieved according to the invention with the features of claim 1. Advantageous embodiments of the invention are subject matters of the dependent claims.

The slipform paver according to the invention is characterized in that the mounting unit for fastening the device for molding flowable material comprises at least two claw-shaped fastening elements, which are arranged immovably on the mounting unit in such a way that they are opened in the same direction. The at least two immovable, claw-shaped fastening elements of the assembly unit of the slipform paver are associated with at least two substantially cylindrical holding elements which are arranged on the mounting unit of the device for molding the flowable material. The at least two claw-shaped fastening elements or the substantially cylindrical retaining elements can be arranged in a common horizontal plane. But it is also possible, the claw-shaped or substantially cylindrical fastening or holding elements in the height offset from each other to arrange. For example, the front fastening elements may be arranged higher than the rear fastening elements, without affecting the approach of the mounting unit of the slipform paver from behind to the mounting unit of the device for molding flowable material.

The claw-shaped fasteners of the slipform paver, which are opened in the same direction, receive the retaining elements of the apparatus for molding the flowable material. The horizontal arrangement of the fasteners and holding elements makes it possible to accommodate the device for molding the flowable material when the assembly unit of the slipform paver is moved from behind to the mounting unit of the molding apparatus. Therefore, it is not necessary to position the mounting unit of the slipform paver just above the mounting unit of the molding apparatus. Also, the concrete tray, which is always higher and longer than wide, can not be overturned when the mounting unit of the slipform paver is moved from behind to the mounting unit of the device for molding. In case of incorrect operation, the concrete tray is merely pushed forward without being able to overturn.

In addition, it is advantageous that the immovable fasteners of the slipform paver can accommodate both the weight of the molding apparatus and a force acting in the opposite direction, but also other reaction forces resulting from the application, without the need for hydraulic or pneumatic Apply cylinder arrangements with pressure. The molding apparatus thus hangs securely on the machine frame of the slipform paver. Consequently, a further locking is basically not required. However, if a lock should be provided, the locking takes place independently of the power transmission. This differential design is advantageous in that the components required for the power transmission and locking can be designed independently of each other for each acting forces. It is crucial that large forces only for the power transmission, in the But a lock is not involved, can occur. However, a possible locking, however, needs, if at all, to absorb only small forces.

An alternative embodiment provides for the arrangement of substantially cylindrical support members on the mounting unit of the slipform paver and claw-shaped fasteners on the mounting unit of the apparatus for molding flowable material. Thus, below, when the claw-shaped elements of the assembly unit of the slipform paver and the substantially cylindrical elements of the mounting unit are associated with the device for molding flowable material, this always means the reverse arrangement in which the claw-shaped elements on the apparatus for molding of flowable Material and the substantially cylindrical elements are provided on the slipform paver.

When talking about essentially cylindrical holding elements, this not only means holding elements which have a circular cross-section. Rather, the cross section of the holding elements may also differ from the circular shape. The only decisive factor is that the holding elements can be picked up and held by the claw-shaped fastening elements. It is obvious to the person skilled in the art that any other cross-sectional shape is possible as long as the claw-shaped fastening elements can grip the retaining elements.

In a preferred embodiment, the claw-shaped fastening elements are arranged on the mounting unit of the slipform paver such that they are open in the working direction of the slipform paver. Since a force acting counter to the advancing direction is applied by the molding apparatus during feed of the slipform paver, the holding members of the apparatus for forming are held on the claw-shaped fasteners of the slipform paver. In a non-claimed embodiment, it is also possible to arrange the claw-shaped fastening elements such that they are open against the working direction. But then it is absolutely necessary to lock the retaining elements in the fasteners.

The claw-shaped fastening elements preferably have a substantially hollow cylindrical receiving area for receiving the substantially cylindrical holding elements of the mounting unit of the device for forming flowable material, wherein the claw-shaped fastening elements are arranged on the mounting unit such that the axis extending through the substantially hollow cylindrical receiving area is located extends transversely to the direction of the slipform paver.

The claw-shaped fastening elements or the substantially cylindrical retaining elements are preferably arranged on the underside of the mounting unit of the slipform paver. This makes it possible to hang the device for molding on the underside of the mounting unit.

A particularly preferred embodiment provides that two in the direction of work front and two rear in the direction of claw-shaped fasteners are provided, preferably the first front fastener and the first rear fastener are arranged in the working direction on a longitudinal axis one behind the other and the second front fastener and the second rear Fastening element are also arranged in the working direction on a longitudinal axis. With this arrangement, the fastening elements can be safely absorbed longitudinal and transverse forces. Also, it is possible to easily accommodate the mounting unit of the molding apparatus with the mounting unit of the slipform paver. But it is also possible that the front and rear holding elements are each arranged offset from one another.

An alternative embodiment does not provide two forwardly and two rearwardly in the direction of work fasteners, but one in the working direction behind and two forward in the direction of claw-shaped fasteners, the rear fastener are arranged centrally and the two front fasteners on both sides of the rear fastener. It is also possible to arrange the front fastening element in the center and the rear fastening elements laterally.

The claw-shaped fastening elements, which are opened in the same direction, may be designed in the manner of a hook such that the retaining elements are secured in the horizontal direction against slipping out. The claw-shaped fastening elements preferably have trough-shaped recesses for receiving the retaining elements. Such trough-shaped depressions may in principle be provided on all or only individual claw-shaped fastening elements.

In a preferred embodiment trough-shaped depressions are provided only on either a front or a rear claw-shaped fastening element. This can be created with the front and rear fastener a kind of fixed bearing and the rear or front fastener a kind floating bearing. This has the advantage that manufacturing tolerances are compensated.

Another particularly preferred embodiment provides a locking device for locking the holding elements of the device for forming in the fastening elements of the slipform paver. However, this locking device absorbs neither the weight of the device for forming nor a force acting in the opposite direction force or other reaction forces occurring in the application in different directions. Since the claw-shaped fasteners are open in the working direction, the locking device need only prevent the retaining elements from slipping out of the fasteners when the molding apparatus is raised. However, this can only be the case if the machine is tilted extremely strong forward, so that the holding elements could slip out of the trough-shaped recesses of the claw-shaped fasteners. When feeding the slipform paver, however, the holding elements are pressed into the claw-shaped fasteners, so that the Verrieglungsvorrichtung is free of load.

The locking device, which essentially only has to absorb forces in the horizontal direction, can be designed differently. In a preferred Embodiment, the locking device on at least one locking element that can be moved between a first position in which the claw-shaped fastening elements can be pushed onto the holding elements and a second position in which the holding elements are secured in the claw-shaped fastening elements. The at least one locking element of the slipform paver cooperates with at least one stop element provided on the device for forming. The abutment member of the molding apparatus has an abutment surface which is preferably directed in the direction in which the fasteners of the slipform paver are opened. The abutment surface of the stop element may lie in a vertical plane or be inclined relative to the horizontal plane. An inclination of the abutment surface has the advantage that the locking element of the locking device can be moved in a direction opposite to the horizontal oblique direction in order to be moved to the stop surface and away from the stop surface can. This makes it possible to arrange the means for moving the locking element such that they limit the range of motion of the mounting unit of the slipform paver as little as possible.

The locking device preferably has at least one piston / cylinder arrangement, on the piston of which the locking element is fastened.

In a preferred embodiment, the locking member of the slipform paver has a frusto-conical portion, while the abutment surface of the stop member of the molding apparatus has a tapered recess in which the locking member of the slipform paver can center when receiving the molding apparatus.

The substantially cylindrical holding elements on the mounting unit of the molding apparatus are arranged so that they can engage in the associated fastening elements of the mounting unit of the slipform paver. The substantially cylindrical holding elements can be encompassed by the claw-shaped fastening elements. They are arranged such that their axes are substantially parallel to each other and transverse to the direction of the concrete trough. Thus, the substantially cylindrical holding elements are aligned transversely to the direction in which the largest forces act. The connection between the claw-shaped fastening elements and the holding elements is a purely positive connection. An adhesion is not required.

An alternative embodiment again provides for the arrangement of claw-shaped fastening elements instead of substantially cylindrical retaining elements on the assembly unit of the device for molding flowable material, wherein not claw-shaped fastening elements, but substantially cylindrical retaining elements are provided on the mounting unit of the slipform paver.

In a preferred embodiment, two front and two rear or rear and two front support members are provided. The holding elements can be designed differently, as far as they can be covered by the claw-shaped fastening elements. Preferably, the holding elements are bolts that can be arranged to save space on the mounting unit. The retaining elements can also be handrails.

In order to be able to accommodate the device for forming in a particularly simple manner, a particularly preferred embodiment provides a guide device with at least one guideway which runs in the direction of a retaining element. Preferably, the at least one guideway extends in the working direction of the slipform paver.

A particularly preferred embodiment provides guideways for all holding elements. The guideways are preferably bounded by baffles, which may be arranged on one or both sides of the guideways. The baffles of the guide device can also be used to attach the retaining elements.

In the alternative embodiment with claw-shaped fasteners on the mounting unit of the apparatus for molding flowable material are the Guideways provided on the mounting unit of the slipform paver on which the substantially cylindrical holding elements are arranged.

Fig. 1A

Ein Ausführungsbeispiel eines Gleitschalungsfertigers in der Seitenansicht ohne Fördereinrichtung,

Fig. 1B

den Gleitschalungsfertiger von Fig. 1 A in der Draufsicht mit der vorgesehenen Fördereinrichtung,

Fig. 2

die Vorrichtung zum Formen von fließfähigem Material für den Gleitschalungsfertiger von den Figuren 1 A und 1 B,

Fig. 3

die Montageeinheit des Gleitschalungsfertigers von den Figuren 1 A und 1 B,

Fig. 4

eine Teilansicht der Montageeinheit des Gleitschalungsfertigers von den Figuren 1 A und 1 B und der Montageeinheit der Vorrichtung zum Formen von Fig. 2 vor der Montage der Vorrichtung zum Formen an dem Gleitschalungsfertiger,

Fig. 5

eine Teilansicht der beiden Montageeinheiten von Fig. 4 nach der Montage der Vorrichtung zum Formen an dem Gleitschalungsfertiger,

Fig. 6

ein weiteres Ausführungsbeispiel der Montageeinheiten von Gleitschalungsfertiger und Vorrichtung zum Formen vor der Montage der Vorrichtung zum Formen an dem Gleitschalungsfertiger in einer Teilansicht,

Fig. 7

eine Teilansicht der beiden Montageeinheiten von Fig. 6 nach der Montage der Vorrichtung zum Formen an dem Gleitschalungsfertiger und

Fig. 8

eine alternative Ausführungsform, bei der die im Wesentlichen zylindrischen Halteelemente an der Montageeinheit des Gleitschalungsfertigers und die klauenförmigen Befestigungselemente an der Montageeinheit der Vorrichtung zum Formen von fließfähigem Material angeordnet sind.

In the following, various embodiments of the invention will be explained in more detail with reference to the figures.

Fig. 1A

An embodiment of a slipform paver in the side view without conveyor,

Fig. 1B

the slipform paver from Fig. 1 A in plan view with the provided conveyor,

Fig. 2

the device for molding flowable material for the slipform paver from the FIGS. 1A and 1B .

Fig. 3

the assembly unit of the slipform paver from the FIGS. 1A and 1B .

Fig. 4

a partial view of the mounting unit of the slipform paver of the FIGS. 1A and 1B and the mounting unit of the device for molding Fig. 2 before mounting the device for molding on the slipform paver,

Fig. 5

a partial view of the two assembly units of Fig. 4 after mounting the device for molding on the slipform paver,

Fig. 6

Another embodiment of the assembly units of slipform paver and molding apparatus prior to assembly of the apparatus for forming the slipform paver in a partial view,

Fig. 7

a partial view of the two assembly units of Fig. 6 after assembly of the device for molding on the slipform paver and

Fig. 8

an alternative embodiment, wherein the substantially cylindrical holding elements are arranged on the mounting unit of the slipform paver and the claw-shaped fastening elements on the mounting unit of the device for molding flowable material.

The Figures 1A and 1B show a slipform paver disclosed in the European patent application EP 1 103 659 A2 is described in detail. Since the slipform paver as such belongs to the prior art, only the essential components of the construction machine of the invention will be described here.

The slipform paver 1 has a machine frame 2, which is supported by a chassis 3. The chassis 3 has two front and two rear chain drives 4A, 4B, which are attached to front and rear lifting columns 5A, 5B, so that the machine frame 2 with respect to the ground in height is adjustable. The working direction of the slipform paver or the device for molding flowable material is indicated by an arrow.

The control station 6 of the slipform paver is arranged in the direction of travel or working direction A in front of the rear lifting column 5B and the drive unit 7 for the hydraulic units in the working direction A behind the rear lifting column 5B. Below the control station 6 is located on the machine frame 2 in height and transversely to the working direction A adjustable mounting unit 8, to which a corresponding mounting unit 9 of a replaceable device 10 for molding flowable material, in particular concrete, is attached, which is referred to below as Betonmulde , The in the FIGS. 1A and 1B only hinted assembly units 8, 9 of the slipform paver 1 and the concrete trough 10 are with reference to the FIGS. 2 to 7 still described in detail.

Fig. 2 shows a perspective view of the concrete trough 10, which has a chute 11 which is disposed above a mold 12 which is bounded by side plates 12A, 12B. The chute 11 serves to supply concrete with the in Fig. 1B In the working direction A behind the chute 11 is above the mold 12, the mounting unit 9 of the concrete trough 10, which is firmly connected to the chute 11 and the mold 12 via struts 13.

Fig. 3 shows the mounting unit 8 of the slipform paver 1, to which the associated mounting unit 9 of the concrete trough 10 is mounted. The assembly unit 8 of the slipform paver can be moved on square profiles 15A, 15B transversely to the working direction A with not shown piston / cylinder arrangements. The mounting unit 8 has a mounting plate 8A, which is mounted vertically adjustable with vertical piston / cylinder assemblies 14A, 14B relative to the machine frame 2. On the underside of the mounting plate 8A, two in the working direction front, claw-shaped fastening elements 16A, 16B and a rear in the working direction A, claw-shaped fastening element 16C are fixed in a common horizontal plane, the openings 39 point in the direction of work A. The rear attachment member 16C lies on an axis extending centrally between the front attachment members 16A, 16B. An adjustment of the mounting plate transversely to the direction of work and in height is not absolutely necessary because the machine frame itself can be moved.

The claw-shaped fasteners 16A, 16B, 16C each have upper and lower portions 40A, 40B and a rear portion 40C defining a substantially hollow cylindrical receiving portion 41 for receiving support members of the mounting unit of the apparatus for molding flowable material, which are referred to as Substantially cylindrical body are formed. The claw-shaped fastening elements are arranged on the mounting unit 8 such that the extending through the hollow cylindrical receiving portion 41 axis 42 extends transversely to the working direction A of Gleitschalungsfertigers.

The fastening elements 16A, 16B, 16C of the mounting unit 8 of the slipform paver 1 are associated with holding elements 17A, 17B, 17C, which are provided on the mounting unit 9 of the concrete trough 10 in the same geometric arrangement. The holding members 17A, 17B, 17C are cylindrical bodies, in particular bolts, fixed to the top of a mounting plate 9A of the mounting unit 9 in a common plane. The longitudinal axis 43 of the holding elements 17A, 17B, 17C formed as cylindrical bodies extends transversely to the working direction A of the device for forming flowable material. The working direction rear holding member 17C of the mounting plate 9A is centered while the two front holding members 17A and 17B are disposed on both sides of the rear holding member.

In addition, the assembly unit 9 of the concrete trough 10 has a guide device 18 for the fastening elements 16A, 16B, 16C of the slipform paver 1. The guide device 18 comprises two lateral front guideways 18A, 18B tapering towards the front holding elements 17A, 17B in the working direction and a rear guideway 18C tapering towards the rear holding element 17C. The front guideways 18A, 18B are each bounded by two inner baffles 19, 20 and two outer baffles 21, 22, the distance to each other, to the holding elements 17 decreases towards. The inner baffles 19, 20 extend rearward to the rear support member 18C to then diverge so as to define the rear guide track 18C from both sides.

For mounting the concrete trough 10, the assembly unit 8 of the slipform paver 1 is moved such that the claw-shaped fastening elements 16A, 16B, 16C are located approximately at the same height and in the working direction behind the associated holding elements 17A, 17B, 17C of the concrete trough. Subsequently, the mounting unit 8 of the slipform paver is moved in the working direction, so that the claw-shaped fastening elements 16 engage around the holding elements 17. A precise positioning is not required, since the baffles 19, 20, 21, 22 of the guide device 18, the fasteners 16 align during the advancement of the mounting unit 8 accordingly.

The front fastening elements 16A, 16B each have at their lower limb a trough-shaped depression 39A whose dimension corresponds approximately to the diameter of a retaining element. As a result, a kind of hook is created in which the retaining elements are securely mounted. Consequently, the front fastening elements 16A, 16B form a kind of fixed bearing. The rear fastening element 16C, however, does not have a trough-shaped depression. Preferably, the distance between the rear attachment member 16C and the side-by-side front attachment members 16A is slightly larger than the distance between the rear retention member 17C and the front support members 17A, 17B, so that the rear support member 17C does not abut against the inside of the rear attachment member 16C, when the front holding members 17A, 17B hang in the trough-shaped recesses 39 of the front fixing members. As a result, a kind of floating bearing is created with the rear retaining element, so that the manufacturing tolerances are compensated.

The changing device consisting of the two assembly units 8, 9 not only absorbs the weight of the concrete trough 10, but can also absorb a force acting in the opposite direction or further reaction forces occurring in the application in different directions. During the feed of the slipform paver in the working direction, the cylindrical holding elements 17 are pressed into the claw-shaped fastening elements 16, which are open in the working direction. As a result, the concrete trough can not be released during normal operation of the slipform paver even if further locking of the retaining elements in the fastening elements is not provided. In the present embodiment, however, a locking device 24 is provided on the mounting unit 8 of the slipform paver 1, with which the retaining elements are secured in the openings of the fastening elements. However, the Verrieglungsvorrichtung only needs to absorb forces when the slipform paver is extremely strongly inclined forward, which is not the normal case. Even then, the forces to be absorbed by the locking device are low.

The locking device 24 has in the present embodiment, only one locking element 25 which is movable between a first position in which the holding elements are free in the fastening elements, and a second position in which the retaining elements are locked in the fastening elements, that the Mounting plate 8A of the mounting unit 8 of the slipform paver 1 with respect to the mounting plate 9A of the mounting unit 9 of the concrete trough 10 can not be moved counter to the working direction.

The locking element 25 is located at the free end of a piston 26 of a piston / cylinder assembly 27, which is attached to the mounting unit 8 of the slipform paver such that the axis of the piston rod 26 extends obliquely to the horizontal. In addition to the locking element 25, the locking device 24 has a stop element 28 which is provided on the mounting unit 9 of the concrete trough 10. The stop element 28 has a relative to the horizontal obliquely extending stop surface 28 A, on which the locking element 25 abuts in the locked position, so that the two mounting plates 8 A, 9 A can not be moved against each other and the holding elements 17 are secured in the fasteners 16.

Fig. 4 shows the locking device 24 when the piston 26 is retracted with the locking element 25. Then, the mounting plate 8A of the slipform paver 1 can be pushed onto the mounting plate 9A of the concrete trough 10 from behind.

Fig. 5 shows the piston / cylinder assembly 27 when the piston 26 is extended with the locking element 25. The locking element 25 then abuts against the working surface facing stop surface 28A of the stop element 28, which is arranged in the center of the mounting plate 9A between the holding elements 17. The locking element 25 has a frusto-conical portion 25A, which engages in a corresponding conical recess 28B of the stop surface 28A of the stop member 28. The baffles of the guide device form lateral stops, which can accommodate larger forces transverse to the direction of operation, so that the locking device 24 remains free of load here.

The FIGS. 6 and 7 show a further embodiment of the changing device according to the invention for the concrete trough. The embodiment of the FIGS. 6 and 7 differs from that with reference to the FIGS. 2 to 5 described embodiment in that instead of two front lateral fastening and holding elements and a central rear fastening and holding element two front and two rear fastening and holding elements are provided on the mounting plates of the two assembly units of slipform paver and concrete pit. In addition, the locking device does not have only one, but two locking elements, which interact with two stop elements. The corresponding parts are provided with the same reference numerals.

On the underside of the mounting plate 8A of the mounting unit 8 of the slipform paver 1 two in the direction of work front claw-shaped fastening elements 16A, 16B and two rear claw-shaped fastening elements 16D, 16E are arranged in a common plane, which are open in the working direction. The first and second fastening elements 16A, 16D and 16B, 16E are in each case arranged one behind the other on a longitudinal axis. In the same geometric arrangement are at the top of the mounting plate 9A of the mounting unit 9 of the concrete trough 10, four holding elements 17A, 17B, 17D 17E, which engage in the openings 39 of the claw-shaped fasteners when the concrete trough 10 is received. In this embodiment, the guide means 18 comprises four guideways 18A, 18B, 18D and 18E, which run towards the holding elements in the working direction. The front guideways 18A, 18B are respectively bounded by inner baffles 31, 32 and outer baffles 33, 34, wherein the inner baffles 31, 32 diverge in the working direction. At the front inner and outer baffles 31, 32 and 33, 34, the front holding elements 17A, 17B are attached. The rear support members 17D, 17E are fixed to rear inner and outer baffles 35, 36 and 37, 38 of the guide means 18, respectively, with the inner baffles extending outwardly in the direction of operation.

In the embodiment of the FIGS. 6 and 7 has the locking device 24 for locking the holding elements in the fastening elements two between the arranged on the front and rear mounting and retaining elements locking elements 25, which can be moved again in an oblique to the horizontal direction to associated stop elements 28. Both locking elements are located at the ends of pistons 26 of the piston / cylinder assemblies 27. The abutment members 28 in this embodiment are plates secured to the forward sloping ends of the rear baffles 35, 36 and 37, 38 of the guide means 18, respectively. In the abutment surfaces of the stop elements conical recesses may again be provided, in which center the frusto-conical portions of the locking elements.

Fig. 6 shows the position in which the mounting unit 8 of the slipform paver 1 is brought to receive the concrete trough 10 while Fig. 7 shows the position in which the claw-shaped fastening elements 16 engage around the holding elements 17. In order to secure the concrete trough 10 on the slipform paver, the pistons 26 of the two piston / cylinder arrangements 27 of the locking device 24 are extended, so that the locking elements 25 abut the stop surfaces 28A of the respective stop elements 28. However, the piston / cylinder arrangements 27 must again only absorb the forces acting in the working direction, but not the weight of the concrete trough and the forces acting counter to the working direction. However, forces in the working direction do not occur during normal operation of the slipform paver. If they should still occur in certain situations, but these forces are low compared to the other forces, so that the locking device is then only relatively low load.

The FIGS. 1 to 7 show embodiments in which the claw-shaped fastening elements on the mounting unit of the slipform paver and the holding elements, which are formed as cylindrical bodies, are arranged on the mounting unit of the device for molding flowable material. It is obvious to the person skilled in the art that the cylindrical holding elements can also be arranged on the assembly unit of the slipform paver and the claw-shaped fastening elements on the assembly unit of the apparatus for molding flowable material, which corresponds to the kinematic reversal of the arrangement of the assembly units.

For this purpose, only the mounting plate of the mounting unit of the slipform paver with the claw-shaped fasteners against the mounting plate of the device for molding flowable material with the cylindrical support members are exchanged. The axes of the cylindrical holding elements of the assembly unit of the slipform paver again run transversely to the working direction. The claw-shaped fastening elements of the mounting unit of the device for molding flowable material are opened counter to the working direction. This arrangement corresponds to that with reference to FIGS FIGS. 1 to 7 described embodiment with the exception that the assembly units by 180 ° about a horizontal axis, for example, the axis 43 (FIG. Fig. 4 ), are rotated. In this alternative embodiment, it is advantageous if the piston / cylinder arrangements of the locking device are not provided on the mounting unit of the device for molding flowable material, but on the mounting unit of the slipform paver, wherein the associated stop elements not on the mounting unit of the slipform paver, but at the assembly unit of the device for molding flowable material are provided, so that the hydraulic system required for actuating the piston / cylinder arrangement is not part of the exchangeable concrete recess.

Fig. 8 shows the alternative embodiment, wherein the cylindrical holding elements are arranged on the mounting unit of the slipform paver and the claw-shaped fastening elements on the mounting unit of the device for molding flowable material. With the exception of the reverse arrangement of fastening and retaining elements, the arrangement of Fig. 8 the arrangement of the FIGS. 6 and 7 , where in Fig. 8 only the mounting plates of the mounting units are shown with the mounting and retaining elements. The mutually corresponding parts of the reverse arrangement are provided with the same reference numerals.

In the alternative embodiment, the claw-shaped fastening elements (16A to 16D) are not opened in the working direction A of the flowable material shaping device, but counter to the working direction, so that the cylindrical retaining elements (17A, 17D) are free of the claw-shaped fastening elements Need to capture a lock. While the claw-shaped fastening elements (16A, 16D) are open against the working direction A, the axes 43 of the cylindrical holding elements (17A, 17D) extend transversely to the working direction. If a lock is not provided, the device for molding flowable material can only be removed when the slipform paver or its assembly unit is moved counter to the working direction A.

In the alternative embodiment of Fig. 8 For example, if the locking device 24 is not disposed on the mounting unit of the flowable material molding apparatus and the stopper member 28 is not disposed on the mounting unit of the slipform paver, the locking device 24 is located on the slipform paver mounting plate 8A and the stopper member 28 on the mounting plate 9A of the apparatus for molding flowable material. The locking device 24 is arranged such that its locking element 25 can be moved counter to the working direction A, wherein the stop element 28 is arranged such that its stop surface 28A points in the working direction. However, it is possible to arrange the locking device on the apparatus for molding flowable material, which then exactly the inversion of the arrangement of the FIGS. 6 and 7 equivalent.

Claims (11)

1. Self-propelled slipform paver comprising an arrangement for moulding flowable material, the slipform paver comprising:

   a chassis (2) able to be adjusted in the heightwise direction which is carried by running gear (3) which has front and rear track-laying units (4A, 4B) which are fastening to front and rear lifting columns (5A, 5B),

   the chassis (2) having a mounting unit (8) for fastening on the arrangement for moulding flowable material,

   characterised in

   that the mounting unit (8) of the chassis (2) has at least one claw-like fastening member (16A, 16B) which is at the front in the direction of operation for fastening on a substantially cylindrical front mating member which is provided on a mounting unit of the arrangement for moulding the flowable material, and at least one claw-like fastening member (16C; 16D, 16E) which is at the rear in the direction of operation for fastening on a substantially cylindrical rear mating member which is provided on the mounting unit of the arrangement for moulding the flowable material, the claw-like fastening members being unmoveable fastened to the mounting unit (8) of the chassis (2) in such a way that the claw-like fastening members are open in the direction of operation (A), and

   that the arrangement for moulding flowable material has a mounting unit (9) to which are fastened at least one substantially cylindrical mating member (17A, 17B) which is at the front in the direction of operation (A) and at least one substantially cylindrical mating member (17C; 17D, 17E) which is at the rear in the direction of operation (A), the axes (43) of which substantially cylindrical mating members are arranged substantially at right angles to the direction of operation (A), or

   that the mounting unit (8) of the chassis (2) has at least one substantially cylindrical mating member (17A, 17B) which is at the front in the direction of operation for fastening on a front claw-like fastening member which is provided on a mounting unit of the arrangement for moulding the flowable material, and at least one substantially cylindrical mating member (17C; 17D, 17E) which is at the rear in the direction of operation for fastening on a rear claw-like fastening member which is provided on the mounting unit of the arrangement for moulding the flowable material, the axes of the substantially cylindrical mating members extending substantially at right angles to the direction of operation (A), and

   that the arrangement for moulding flowable material has a mounting unit (9) having at least one claw-like fastening member (16A) which is at the front in the direction of operation (A) and at least one claw-like fastening member (16D) which is at the rear in the direction of operation, which fastening members are unmoveable fastened to the mounting unit (9) of the chassis (2) in such a way that they are open in the opposite direction to the direction of operation (A),

   so that the at least one claw-like fastening member which is at the front or the at least one claw-like fastening member which is at the rear is able to be slid onto, respectively, the at least one substantially cylindrical mating member which is at the front and the at least one substantially cylindrical mating member which is at the rear,
2. Slipform paver according to claim 1, characterised in that the claw-like fastening members (16A to 16E) are arranged on the mounting unit (8) of the chassis (2) and have a receiving region (42) substantially in the form of a hollow cylinder to receive the mating members of the mounting unit of the arrangement for moulding flowable material, the claw-like fastening members (16A to 16E) being arranged on the mounting unit (8) in such a way that the axes (42) which pass through their receiving regions (41) in the form of hollow cylinders extend at right angles to the direction of operation (A).
3. Slipform paver according to claim 1, characterised in that the claw-like fastening members (16A to 16E) or the substantially cylindrical mating members (17A to 17E) are arranged on the underside of the mounting unit (8) of the chassis (2).
4. Slipform paver according to one of claims 1 to 3, characterised in that there are provided two claw-like fastening members which are at the front in the direction of operation and at least one claw-like fastening member which is at the rear in the direction of operation (16A, 16B; 16D, 16E).
5. Slipform paver according to one of claims 1 to 4, characterised in that one of the at least two claw-like fastening members (16A, 16B) is configured to have a trough-like depression (39) whereas the other of the at least two claw-like fastening members (16D, 16E) is configured not to have a trough-like depression.
6. Slipform paver according to one of claims 1 to 5, characterised in that the mounting unit (8) of the chassis (2) has a locking arrangement (24) which can be moved between a first position, in which the at least one front or back claw-like fastening member can be slid onto the at least one front or back substantially cylindrical mating member, and a second position, in which the mating member is secured in the fastening member.
7. Slipform paver according to claim 6, characterised in that the locking arrangement (24) has at least one locking member (25) which can be moved between the first and second positions in a direction which is directed in the opposite direction to the direction of operation (A), and/or which can be moved in a direction which extends obliquely to the horizontal.
8. Arrangement according to one of claims 1 to 7, characterised in that a guiding arrangement (18) having at least one guideway (18A to 18D) which extends in the direction of a substantially cylindrical mating member (17A to 17E) is provided.
9. Arrangement according to claim 8, characterised in that the guiding arrangement (18) has at least one guiding plate (31 to 38) which is arranged on one side of the guideway (18A to 18D).
10. Arrangement according to one of claims 7 to 9, characterised in that the mounting unit (9) of the arrangement for moulding has at least one abutment member (28) which has a face for contact (28A) for the locking member (25) of the locking arrangement (24).
11. Arrangement according to claim 10, characterised in that the face for contact (28A) of the abutment member (28) faces in the direction of operation and/or is inclined to the horizontal.

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