Building material and / or thick matter conveying vehicle
Patent Information
- Application Number
- PCT/EP2026/057737
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-03-26
- Filing Date
- 2026-03-19
- Publication Date
- 2026-10-01
Smart Images
Figure EP2026057737_01102026_PF_FP_ABST
Abstract
Description
[0001] Construction material and / or thick material transport vehicle
[0002] The invention relates to a construction material and / or thick material conveying vehicle.
[0003] It is an object of the present invention to create a construction material and / or thick material conveying vehicle which has special properties. In particular, a particularly simple means of adjusting the length of a telescopic leg of a support boom is to be provided.
[0004] This problem is solved by the subject matter of the independent patent claim. Preferred embodiments are the subject matter of the dependent patent claims. The wording of all patent claims is incorporated by express reference into the present description.
[0005] A construction material and / or high-density material conveying vehicle according to the invention comprises a chassis and at least one support boom. The support boom is designed to stabilize the chassis and prevent it from tipping over. By stabilizing the chassis using the at least one support boom, the chassis can be secured against tipping over. The support boom has a foot section designed to make contact with a ground surface. When stabilizing the chassis and preventing it from tipping over, the foot section can contact the ground to transmit a stabilizing force.
[0006] The outrigger has a telescopic leg, which is length-adjustable to set the horizontal distance between the base and the chassis. In particular, the telescopic leg can be retracted to adjust the base, thereby reducing the horizontal distance to the chassis. With the minimum horizontal distance between the base and chassis set, the outrigger can be positioned for road travel of the construction material and / or bulk material transport vehicle.
[0007] The outrigger has a linear drive assembly designed for adjusting the length of the telescopic leg. The linear drive assembly can form an actuator for adjusting telescopic segments of the telescopic leg relative to one another. The linear drive assembly comprises a number of linear drive units. In particular, the number of linear drive units is at least three. The number of linear drive units can be exactly three. Each linear drive unit of the linear drive assembly has a housing and a rod that is retractable along a longitudinal direction of the telescopic leg relative to the housing of the same linear drive unit. In particular, each linear drive unit can be hydraulically controlled to retract and / or extend its rod depending on the control system.
[0008] The housing of a first linear drive unit and the housing of a second linear drive unit of the linear drive package are rigidly connected to each other to form a piggyback arrangement. In this piggyback arrangement, the housings of the first and second linear drive units are rigidly connected, in particular detachably or permanently, such that the rods of the first and second linear drive units can be extended in opposite directions. "Rigidly connected" in this context can mean "rigid" and / or "unyielding." In particular, the rod ends of the first and second linear drive units, located outside their respective housings, point away from each other along the longitudinal direction of the telescopic leg.The rod of the second linear drive unit and the housing of a third linear drive unit of the linear drive package are rigidly connected to each other, the second linear drive unit and the third linear drive unit being arranged relative to each other such that the rods of the second linear drive unit and the third linear drive unit can be extended in the same direction. In particular, the rod ends of the rods of the second linear drive unit and the third linear drive unit, located outside the respective housings, point in a common direction along the longitudinal extension direction of the telescopic leg.
[0009] The linear drive package can provide a technically simple and / or particularly robust method for adjusting the length of the telescopic leg, especially in a controlled manner. In particular, using such a linear drive package eliminates the need for a conventionally used multi-section telescopic hydraulic cylinder, which can result in significant cost savings.
[0010] In particular, the construction material and / or slurry conveying vehicle is a truck-mounted concrete pump, i.e., a self-propelled concrete pump. Alternatively, the construction material and / or slurry conveying vehicle can be a mobile, especially self-propelled, belt conveyor, which can be designed for conveying construction material in bulk form. In this context, "slurry" refers to a slurry-like mixture of different substances. Examples of slurry include mortar, cement, screed, or concrete, each in a mixable and / or conveyable state. In this mixable and / or conveyable state, the slurry is not yet hardened. Specifically, the slurry is a construction material. Alternatively or additionally, the construction material can be a bulk material.
[0011] In this context, the term "support contact" can mean, in particular, that the installation is not merely loose, but involves the transmission of the support force. This support force can correspond to at least a portion of the weight of the construction material and / or bulk material transport vehicle. Specifically, in a "support contact-free" state, there is no contact between the foot section and the ground, for example, when the foot section is suspended freely.
[0012] The linear drive package expediently has an extension length that defines a maximum adjustment length of the telescopic leg, and a retraction length that defines a minimum adjustment length of the telescopic leg. The linear drive units of the linear drive package can be designed as adjustment stages of the linear drive package and / or be controllable.
[0013] It is advantageous for the linear drive assembly to be arranged at least partially, and in particular completely, inside the telescopic leg. However, it may also be conceivable, under certain circumstances, to arrange the linear drive assembly outside the interior of the telescopic leg.
[0014] In one embodiment of the invention, the linear drive units of the linear drive package are arranged in a stacked manner, particularly along the direction of gravity. Alternatively or additionally, the third linear drive unit is arranged at the bottom of the linear drive package with respect to gravity, and / or the first linear drive unit is arranged at the top. The stacked arrangement of the linear drive units can enable a particularly advantageous utilization of limited installation space inside the telescopic leg.
[0015] In a further embodiment of the invention, the linear drive assembly comprises a guide device. By means of the guide device, the housing of the second linear drive unit and the housing of the third linear drive unit are movably guided relative to each other, in particular parallel to the longitudinal direction. The provision of the guide device can improve the mechanical load-bearing capacity of the linear drive assembly. In particular, torques in the lateral direction can also be prevented in this way, since the directions of force action are arranged in one plane. In a further embodiment of the invention, the guide device of the linear drive assembly comprises a guide rail that extends longitudinally along the longitudinal direction. Furthermore, the guide device of the linear drive assembly has a guide element that engages with the guide rail in a guiding engagement, in particular a sliding engagement.The guiding engagement can be positively interlocking, particularly orthogonal to the longitudinal direction, both horizontally and vertically.
[0016] "Horizontal" can mean perpendicular to the direction of gravity. "Vertical" can mean parallel to the direction of gravity.
[0017] The positive-locking guide engagement can be advantageously achieved by means of a combination of a C-profile and a complementary T-section. The T-section can be movably guided within the C-profile. The C-profile can be formed by the guide rail and the T-section by the guide element – or vice versa.
[0018] In a further embodiment of the invention, the guide rail is attached to the housing of the second linear drive unit and the guide element is attached to the housing of the third linear drive unit. Alternatively, the guide element can be attached to the housing of the second linear drive unit and the guide rail to the housing of the third linear drive unit.
[0019] In a further embodiment of the invention, the telescopic leg comprises a number of nested telescopic segments. Inner telescopic segments of the telescopic leg, nested within an outermost telescopic segment, are each articulated by means of one of the linear drive units of the linear drive package, in particular such that the inner telescopic segments are adjustable relative to the outermost telescopic segment. "Articulated" can be understood in particular as "jointed in a pivotal manner".
[0020] In a further embodiment of the invention, a rod end of the second linear drive unit, located particularly outside the relevant housing, has a control block of the piggyback arrangement. A section of the line of the construction material and / or viscous material conveying vehicle extends from this control block of the piggyback arrangement through the interior of the rod of the second linear drive unit. This line section can therefore run within the interior of the rod of the second linear drive unit. A rod end of the third linear drive unit, located particularly outside the relevant housing, has a control block of the third linear drive unit, and another section of the line of the construction material and / or viscous material conveying vehicle extends from this control block of the third linear drive unit through the interior of the rod of the third linear drive unit.In particular, the other section of the cable runs through the interior of the rod of the third linear drive unit. This allows for a particularly compact linear drive package.
[0021] It is advantageous for other cable sections to run essentially outside the linear drive units.
[0022] In some embodiments, the linear drive package is designed for electrical length adjustment of the telescopic leg and may accordingly have linear drive devices in the form of electric lifting spindle drives.
[0023] In other embodiments, the linear drive package is designed for hydraulic length adjustment of the telescopic leg. Such embodiments can be referred to as "hydraulic embodiments".
[0024] In hydraulic configurations, the linear actuator assembly can be designed as a hydraulic cylinder assembly. The linear actuators can be designed as hydraulic cylinders. The housings can be designed as cylinder housings. The rods can be designed as piston rods. The rod end located outside the housing can be a rod end furthest from the piston. The line sections can be hydraulic line sections.
[0025] Advantageously, in hydraulic embodiments, at least all hydraulic line sections of the construction material and / or thick material conveying vehicle that communicate directly with the hydraulic cylinders can be designed by, in particular, rigid, metallic pipes.
[0026] The rigid metal pipes can also be formed from screw connections, so they don't necessarily have to be simple tubes. It is also advantageous to avoid flexible hydraulic lines and / or hoses between the hydraulic cylinders.
[0027] In a further embodiment of the invention, the linear drive units of the linear drive package, particularly hydraulic ones, are connected in series. Such a series connection of the linear drive units of the linear drive package can advantageously simplify the rigid piping of the linear drive unit by means of, in particular, rigid, metallic hydraulic lines in hydraulic embodiments. In a further embodiment of the invention, a response and / or extension sequence of the linear drive units of the linear drive package is defined.
[0028] In hydraulic designs, in particular, the response and / or extension sequence is defined by means of hydraulically connected line valves in series both between the first linear drive unit and the second linear drive unit and between the second linear drive unit and the third linear drive unit.
[0029] Advantageously, in hydraulic designs, the hydraulic cylinders forming the linear drive units can be designed with uniform piston diameters and rod diameters. This can result in a particularly advantageous number of identical parts for the linear drive units' hydraulic cylinders. In particular, the identical surface areas can also lead to identical force ratios and identical extension / retraction speeds at the same pressure.
[0030] In a further embodiment of the invention, the outermost telescopic segment of the telescopic leg is pivotably mounted on the chassis, particularly about a vertical pivot axis. Alternatively or additionally, the construction material and / or slurry conveying vehicle has at least two, and in particular four, support arms. Advantageously, the support arms of the construction material and / or slurry conveying vehicle, in particular all or only in pairs, are designed at least substantially identically. In some circumstances, two support arms may be provided without a telescopic leg.
[0031] In a further embodiment of the invention, the construction material and / or slurry conveying vehicle is a truck-mounted concrete pump and has a distribution boom that is adjustable relative to the chassis for distributing the conveyed construction material and / or slurry. A conveying line through which the conveyed construction material and / or slurry can flow can be routed from the chassis along the distribution boom and / or terminate at a free end of the distribution boom.
[0032] In a further, particularly alternative, embodiment of the invention, the construction material and / or thick material conveying vehicle is designed as a mobile belt conveyor and has a conveyor belt device that is telescopic relative to the chassis.
[0033] Further advantages and features of the invention will become apparent from the claims and from the following description of preferred embodiments of the invention, which are illustrated with reference to the drawings. In this context, identical reference numerals refer to identical, similar, or functionally equivalent components. It is understood that the features mentioned above and those to be explained below can be used not only in the combinations specified, but also in other combinations or individually, without departing from the scope of this disclosure.
[0034] Fig. 1 shows a schematic perspective view of a construction material and / or thick material conveying vehicle according to one embodiment of the invention, in particular a hydraulic one.
[0035] Fig. 2, in schematic side view, shows an example of a telescopic leg of a support boom in a retracted state for the construction material and / or thick material conveying vehicle according to Fig. 1.
[0036] Fig. 3 shows a schematic side view of the telescopic leg according to Fig. 2 in an extended state, and
[0037] Fig. 4 shows another example of a telescopic leg of a support boom in its extended state for the construction material and / or thick material conveying vehicle according to Fig. 1.
[0038] A construction material and / or viscous material transport vehicle 1 is designed for conveying construction material and / or viscous materials, particularly in the form of concrete, and especially liquid concrete. The construction material and / or viscous material transport vehicle 1 can be mobile, allowing it to be moved to a construction site and used there temporarily and / or for the conveying of construction material and / or viscous materials.
[0039] The construction material and / or viscous material conveying vehicle 1 can be a self-propelled work machine. According to Fig. 1, the construction material and / or viscous material conveying vehicle 1 is, for example, a truck-mounted concrete pump 2. In other embodiments, the construction material and / or viscous material conveying vehicle 1 can, for example, be designed as a mobile belt conveyor, in particular for conveying bulk materials.
[0040] The construction material and / or slurry conveying vehicle 1 has a chassis 3. The chassis 3 can be a commercial vehicle chassis, in particular, as in the present case, a truck chassis. The construction material and / or slurry conveying vehicle 1 has at least one support boom 4, which is designed to support the chassis 3 against tipping, in particular overturning. The construction material and / or slurry conveying vehicle 1 can have at least two support booms 4. In the present case, the construction material and / or slurry conveying vehicle 1 has four such support booms 4, of which two are arranged substantially diagonally opposite each other.
[0041] The support arms 4 each have a foot section 5. The foot section 5 is designed to contact a ground U for anti-tipping bracing. The foot section 5 can serve to transfer part of the weight of the construction material and / or high-strength material transport vehicle 1 and / or to transfer at least part of a tipping moment into the ground U.
[0042] At least two of the outriggers 4 each have a telescopic leg 6. Each telescopic leg 6 is designed to be length-adjustable for setting a horizontal distance HA between the respective foot section 5 and the chassis 3. By adjusting the length of the telescopic leg 6, the horizontal distance HA can be varied. The telescopic leg 6 connects the foot section 5 to the chassis 3. The horizontal distance HA is measured horizontally. "Horizontal" can mean perpendicular to the direction of gravity G. "Vertical" can mean parallel to the direction of gravity G.
[0043] In particular, there are embodiments in which at least one non-length-adjustable, especially non-telescopic, additional support boom is provided. Specifically, such a non-length-adjustable additional support boom can be pivoted laterally to adjust a horizontal distance HA between the relevant foot section 5 and the chassis 3. For example, two length-adjustable support booms 4 and two non-length-adjustable additional support booms may be provided.
[0044] The length-adjustable support boom 4 has a linear drive package which is hydraulically controlled for adjusting the length of the telescopic leg 6 of the support boom 4. In this case, the linear drive package is designed as a hydraulic cylinder package ZP.
[0045] The linear drive package ZP comprises a number of linear drive units, which in this case are designed as hydraulic cylinders 7, 7A, 7B, 70. In this case, the hydraulic cylinder package ZP has three hydraulic cylinders 7, 7A, 7B, 70: a first hydraulic cylinder 7A, a second hydraulic cylinder 7B, and a third hydraulic cylinder 70.
[0046] The hydraulic cylinders 7, 7A, 7B, 70 each have a cylinder housing 8, 8A, 8B, 80. Furthermore, the hydraulic cylinders 7, 7A, 7B, 70 each have a piston rod 9, 9A, 9B, 90, which retracts the corresponding cylinder housings 8, 8A, 8B, 8C along a longitudinal extension L of the telescopic leg 6, particularly actively. In this case, the retracted piston rods 9, 9A, 9B, 9C can be actively extended by hydraulic actuation of the respective hydraulic cylinder 7, 7A, 7B, 70. The hydraulic cylinders 7, 7A, 7B, 70 can be designed as double-acting.
[0047] A first hydraulic cylinder 7A of the hydraulic cylinder package ZP and a second hydraulic cylinder 7B of the hydraulic cylinder package ZP form a piggyback arrangement 10. The cylinder housings 8A, 8B of the first hydraulic cylinder 7A and the second hydraulic cylinder 7B are attached to each other in such a way that the piston rods 9A, 9B of the first hydraulic cylinder 7A and the second hydraulic cylinder 7B can be extended in opposite directions.
[0048] The cylinder housing 8C of a third hydraulic cylinder 70 of the hydraulic cylinder assembly ZP is rigidly connected to the piston rod 9B of the second hydraulic cylinder 7B. The piston rod 9B of the second hydraulic cylinder 7B and the cylinder housing 8C are connected to each other and arranged relative to each other such that the piston rods 9B and 9C of the second hydraulic cylinder 7B and the third hydraulic cylinder 70 can be extended in essentially the same direction. The hydraulic cylinders 7, 7A, 7B, and 70 can be extended longitudinally in essentially parallel to each other.
[0049] The hydraulic cylinder package ZP, for example, has an extension length LA, which defines a maximum adjustment length of the telescopic leg 6. The hydraulic cylinder package ZP also has, for example, a retraction length LE, which defines a minimum adjustment length of the telescopic leg 6.
[0050] The hydraulic cylinders 7, 7A, 7B, and 70 of the ZP hydraulic cylinder package can define adjustment stages of the telescopic leg 6. Alternatively or additionally, the first hydraulic cylinder 7A, the second hydraulic cylinder 7B, and the third hydraulic cylinder 70 can be designed with uniform piston diameters and uniform piston rod diameters.
[0051] In this case, the hydraulic cylinders 7, 7A, 7B, and 70 of the hydraulic cylinder assembly ZP are stacked one above the other along the direction of gravity G. In this case, the third hydraulic cylinder 70 is arranged at the bottom of the hydraulic cylinder assembly ZP with respect to gravity. Alternatively or additionally, as in this case, the first hydraulic cylinder 7A can be arranged at the top of the hydraulic cylinder assembly ZP. The second hydraulic cylinder 7B can be arranged along the direction of gravity G between the third hydraulic cylinder 70 and the first hydraulic cylinder 7A. The hydraulic cylinder assembly ZP includes a guide device 11. By means of the guide device 11, the cylinder housings 8B and 8C of the second hydraulic cylinder 7B and the third hydraulic cylinder 7C are movably guided relative to each other, for example, parallel to the longitudinal direction L.
[0052] The guide device 11, for example, has a guide rail 12 extending longitudinally along the longitudinal direction L. Furthermore, the guide device 11 can – as in the present case – have a guide element 13 engaged with the guide rail 12, in particular in a sliding manner. In the present case, the guide engagement is positively locked both horizontally and vertically, orthogonal to the longitudinal direction L.
[0053] For example, to achieve the positive locking guide engagement, the guide element 13 can be realized with a T-profile and the guide rail 12 with a complementary C-profile - or vice versa.
[0054] In this embodiment, the guide rail 12 is attached to the cylinder housing 8B of the second hydraulic cylinder 7B, whereas the guide element 13 is attached to the cylinder housing 8C of the third hydraulic cylinder 7C. In other embodiments, conversely, the guide rail 12 can be attached to the cylinder housing 8C of the third hydraulic cylinder 7C, while the guide element 13 is attached to the cylinder housing 8B of the second hydraulic cylinder 7B.
[0055] The telescopic leg 6 has a number of nested telescopic segments 14A, 14B, 14C, 14D. An outermost telescopic segment 14D can surround inner telescopic segments 14A, 14B, 14C. To adjust the inner telescopic segments 14A, 14B, 14C relative to the outermost telescopic segment 14D, each inner telescopic segment 14A, 14B, 14C can be articulated by one of the hydraulic cylinders 7, 7A, 7B, 7C of the hydraulic cylinder assembly ZP. The articulated connection of the telescopic segments 14A, 14B, 14C can be made at the articulated positions P1, P2, P3, P4, which are marked by way of example in Figures 2 to 4.
[0056] The piston rod 9B of the second hydraulic cylinder 7B, for example, has a piston rod head 17B, which is arranged outside the cylinder housing 8B of the second hydraulic cylinder 7B. In this case, the piston rod head 17B of the second hydraulic cylinder 7B has a control block 18B of the piggyback arrangement 10, in particular a hydraulic control block 18B, wherein a hydraulic line section 15 of the construction material and / or high-density material conveying vehicle 1 runs from this control block 18B of the piggyback arrangement 10 within an interior 19B of the piston rod 9B of the second hydraulic cylinder 7B. The piston rod head 17B can be arranged at a rod end of the second hydraulic cylinder 7B furthest from the piston.
[0057] The piston rod 9C of the third hydraulic cylinder 70 has a piston rod head 17C. The piston rod head 17C of the third hydraulic cylinder 70 has a control block 18C of the third hydraulic cylinder 70, from which another hydraulic line section 15 of the construction material and / or viscous material conveying vehicle 1 runs within an interior 19C of the piston rod 9C of the third hydraulic cylinder 70. The piston rod head 17C can be arranged at a rod end of the third hydraulic cylinder 70 furthest from the piston.
[0058] The hydraulic cylinders 7, 7A, 7B, and 70 of the hydraulic cylinder package ZP are connected in series. These hydraulic cylinders communicate with each other fluidically via hydraulic line sections of the construction material and / or high-viscosity material conveying vehicle 1 (which are omitted for clarity). These hydraulic line sections consist of, in particular, rigid metal pipes. The hydraulic cylinders 7, 7A, 7B, and 70 can communicate with each other fluidically through the rigid piping that forms the hydraulic line sections.
[0059] For example, a response and / or extension sequence for the hydraulic cylinders 7, 7A, 7B, 70 is defined. Line valves can be provided to define the response and / or extension sequence, one of which is arranged in hydraulic series between the first hydraulic cylinder 7A and the second hydraulic cylinder 7B, and another between the second hydraulic cylinder 7B and the third hydraulic cylinder 70.
[0060] In other embodiments, the linear drive package can be configured for electrical length adjustment of the telescopic leg 6. In this case, the hydraulic cylinders can be functionally replaced by electric linear drive units. The cylinder housings can be functionally replaced by housings of the linear drive units. The piston rods can be functionally replaced by rods of the linear drive units. The hydraulic line sections can be functionally replaced by electrical line sections. It is understood that pneumatic or other embodiments are also conceivable.
[0061] In this case, the outermost telescopic segment 14D of the respective telescopic leg 6 is mounted on the chassis 3. The outermost telescopic segment 14D can be pivotally mounted on the chassis 3 about a vertical pivot axis VS. For road transport of the construction material and / or bulk material conveying vehicle 1, the respective pivoting support boom 4 can be attached to the chassis 3, in particular laterally. To prevent tipping, the relevant pivoting support boom 4 can be extended from the chassis 3.
[0062] The construction material and / or thick material conveying vehicle 1, for example, has a distribution mast 27 that is adjustable relative to the chassis 3 and is designed for distributing conveyed construction material and / or thick material. The distribution mast 27 can be mounted on the chassis 3 so that it can be rotated about a vertical axis of rotation by means of a rotary mechanism of the construction material and / or thick material conveying vehicle 1. The distribution mast 27 can be designed as a multi-jointed articulated arm. The distribution mast 27 can have a number of arm segments that are connected and controllable by means of a number of hinge joints in the manner of a serial robot.
[0063] Supporting the chassis 3 by means of at least one support boom 4 can counteract a shift in the center of gravity when adjusting and / or moving the distributor mast 27, thus preventing it from tipping over.
[0064] The construction material and / or viscous material conveying vehicle 1 has a conveying line 28 through which the conveyed construction material and / or viscous material flows. The conveying line 28 is routed away from the chassis 3 along the distribution mast 27. The conveying line 28 can terminate at a free end 29 of the distribution mast 27, as shown here. The conveying line 28 can be connected to a construction material and / or viscous material pumping unit supported by the chassis 3 for conveying construction material and / or viscous material.
[0065] The delivery line 28 is connected, in particular, to a pressure port of the construction and / or viscous material pumping unit. Advantageously, the construction and / or viscous material pumping unit can have at least one delivery cylinder with a variable-volume delivery chamber. For example, two delivery cylinders, each with a variable-volume delivery chamber, are provided, the volumes of which can be changed in opposite directions by adjusting the associated delivery pistons. The construction and / or viscous material pumping unit has, for example, a pipe diverter, in particular with an S-shaped S-pipe. The pipe diverter can be fluid-conductingly connected to the pressure port, which serves as the pump outlet. The pipe diverter can be arranged in a storage chamber for construction and / or viscous material, which can be filled from above. The pipe diverter can be rotatably mounted on the pressure port within the storage chamber. The at least one variable-volume delivery chamber can open into the storage chamber.The pipe diverter can be pivoted within the storage chamber relative to the at least one conveying chamber in such a way that it alternately connects and disconnects the at least one conveying chamber fluid to the discharge port. In this way, the interplay between the pivoting of the pipe diverter and a change in the volume of the at least one conveying chamber in the storage chamber allows construction material and / or viscous material located there to be drawn in by the at least one conveying chamber and pumped through the pipe diverter and out through the discharge port. An agitator can be arranged in the storage chamber of the construction material and / or viscous material pumping unit.
Claims
Patent claims 1. Construction material and / or thick material transport vehicle (1), comprising: a chassis (3) and at least one support arm (4) for stabilizing the chassis (3) to prevent tipping, wherein the support boom (4) has a foot section (5) for supporting contact with a ground (U) and a telescopic leg (6) which is designed to be length-adjustable for setting a horizontal distance (HA) between the foot section (5) and the chassis (3), wherein the support boom (4) has a linear drive package (ZP) for length adjustment of the telescopic leg (6), wherein the linear drive package (ZP) has a number of linear drive units (7, 7A, 7B, 70) each having a housing (8, 8A, 8B, 8C) and a rod (9, 9A, 9B, 9C) retractable relative to the respective housing (8, 8A, 8B, 8C) along a longitudinal extension direction (L) of the telescopic leg (6), wherein the housings (8A, 8B) of a first linear drive unit (7A) and a second linear drive unit (7B) are firmly connected to each other in a piggyback arrangement (10) such that the rods (9A, 9B) of the first linear drive unit (7A) and the second linear drive unit (7B) can be extended in opposite directions, wherein the rod (9B) of the second linear drive unit (7B) and the housing (8C) of a third linear drive unit (7C) are firmly connected to each other in such a way that the rods (9B, 9C) of the second linear drive unit (7B) and the third linear drive unit (7C) can be extended in the same direction.
2. Construction material and / or thick material conveying vehicle (1) according to the preceding claim, wherein the linear drive units (7, 7A, 7B, 70) of the linear drive package (ZP) are arranged stacked one above the other along the direction of gravity (G); and / or wherein in the linear drive package (ZP) the third linear drive unit (7C) is arranged at the bottom with respect to gravity and / or the first linear drive unit (7A) is arranged at the top.
3. Construction material and / or thick material conveying vehicle (1) according to one of the preceding claims, wherein the linear drive package (ZP) comprises a guide device (11) by means of which the housings (8B, 80) of the second linear drive unit (7B) and the third linear drive unit (70) are movably guided relative to each other, in particular parallel to the longitudinal direction (L).
4. Construction material and / or thick material conveying vehicle (1) according to the preceding claim, wherein the guide device (11) comprises a guide rail (12) extending longitudinally along the longitudinal direction (L) and a guide element (13) engaged with the guide rail (12), in particular in a sliding manner. in particular wherein the guiding engagement is orthogonal to the longitudinal extension direction (L) and is positively interlocking both horizontally and vertically.
5. Construction material and / or thick material conveying vehicle (1) according to the preceding claim, wherein the guide rail (12) is attached to the housing (8B) of the second linear drive unit (7B) and the guide element (13) is attached to the housing (8C) of the third linear drive unit (7C) - or vice versa.
6. Construction material and / or thick material conveying vehicle (1) according to one of the preceding claims, wherein the telescopic leg (6) has a number of nested telescopic segments (14A, 14B, 14C, 14D), wherein, with respect to the outermost telescopic segment (14D), inner telescopic segments (14A, 14B, 14C) are articulated for adjustment relative to the outermost telescopic segment (14D) by means of one of the linear drive units (7, 7A, 7B, 70) of the linear drive package (ZP).
7. Construction material and / or thick material conveying vehicle (1) according to one of the preceding claims, wherein a rod head (17B) of the second linear drive unit (7B) has a control block (18B) of the piggyback arrangement (10) and from this control block (18B) of the piggyback arrangement (10) a line section (15) of the construction material and / or thick material conveying vehicle (1) runs in an interior (19B) of the rod (9B) of the second linear drive unit (7B), wherein a rod head (17C) of the third linear drive unit (70) has a control block (180) of the third linear drive unit (70) and from this control block (180) of the third linear drive unit (70) another line section (15) of the construction material and / or thick material conveying vehicle (1) runs in an interior (190) of the rod (90) of the third linear drive unit (70).
8. Construction material and / or thick material conveying vehicle (1) according to one of the preceding claims, wherein the linear drive units (7, 7A, 7B, 7C) of the linear drive package (ZP), in particular hydraulically, are connected in series.
9. Construction material and / or thick material conveying vehicle (1) according to the preceding claim, wherein a response and / or extension sequence of the linear drive units (7, 7A, 7B, 7C) is defined, in particular by means of hydraulically connected line valves in series both between the first linear drive unit (7A) and the second linear drive unit (7B) and between the second linear drive unit (7B) and the third linear drive unit (7C).
0. Construction material and / or thick material conveying vehicle (1) according to one of the preceding claims, - wherein an outermost telescopic segment (14D) of the telescopic leg (6) is pivotably mounted on the chassis (3), in particular about a vertical pivot axis (VS); and / or - wherein the construction material and / or thick material conveying vehicle (1) has at least two, in particular four, support booms (4).
1. Construction material and / or thick material conveying vehicle (1) according to one of the preceding claims, - wherein the construction material and / or thick material conveying vehicle (1) has a distribution mast (27) adjustable relative to the chassis (3) for distributing conveyed construction material and / or thick material, in particular wherein a conveying line (28) through which conveyed construction material and / or thick material can flow is led away from the chassis (3) along the distributor mast (27) and / or terminates at a free end (29) of the distributor mast (27).
12. Construction material and / or thick material conveying vehicle (1) according to one of the preceding claims, wherein the construction material and / or thick material conveying vehicle (1) is designed as a mobile belt conveyor and has a conveyor belt device that is telescopic relative to the chassis (3), in particular for conveying construction material in the form of bulk material.