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CONCRETE PUMP ASSEMBLY

20200158097 ยท 2020-05-21

    Inventors

    Cpc classification

    International classification

    Abstract

    The invention relates to a concrete pump assembly with at least two feed cylinders for conveying concrete, and at least two hydraulic drive cylinders moving the feed cylinders, wherein the drive cylinders are coupled to one another in a torsion-resistant manner via at least one connecting means. According to the invention, the drive cylinders and the at least one connecting means, in which the at least one valve is configured in an integrated manner, are formed as a drive unit that can be pre-assembled.

    Claims

    1. Concrete pump assembly (1), preferably for a truck-mounted concrete pump, with at least two feed cylinders for conveying concrete and at least two hydraulic drive cylinders (3) moving the feed cylinders, wherein the drive cylinders (3) are coupled to one another in a torsion resistant manner via at least one connecting means (4, 4), and the drive cylinders (3) at the at least one connecting means (4, 4), in which at least one valve block (5, 5) is configured in an integrated manner, are formed as a drive unit that can be pre-assembled.

    2. Truck-mounted concrete pump according to claim 1, wherein the drive cylinders (3) are coupled to one another via at least two connecting means (4, 4).

    3. Truck-mounted concrete pump according to claim 1, wherein the at least one connecting means (4, 4) directly or indirectly couples the drive cylinders (3).

    4. Truck-mounted concrete pump according to claim 1, wherein switching members for regulating/controlling the hydraulic supply of the drive cylinders (3) are provided on and/or in the at least one valve block (5, 5).

    5. Truck-mounted concrete pump according to claim 1, wherein no tubing is provided between the top and/or base side of the drive cylinders (3).

    6. Truck-mounted concrete pump according to claim 1, wherein at least one hydraulic auxiliary function is provided in and/or on the connecting means (4, 4).

    7. Truck-mounted concrete pump according to claim 1, wherein at least one displacement sensor is provided in and/or on the connecting means (4, 4).

    8. Truck-mounted concrete pump according to claim 1, wherein at least one switch or valve for an emergency activation is provided in and/or on the connecting means (4, 4).

    9. Truck-mounted concrete pump according to claim 1, wherein at least two connecting means (4, 4) are provided, which are connected with one another via at least one connecting line (P, T), and the connecting line (P, T) is arranged in particular parallel to the drive cylinders (3).

    10. Truck-mounted concrete pump according to claim 2, wherein the at least one connecting means (4, 4) directly or indirectly couples the drive cylinders (3).

    11. Truck-mounted concrete pump according to claim 10, wherein switching members for regulating/controlling the hydraulic supply of the drive cylinders (3) are provided on and/or in the at least one valve block (5, 5).

    12. Truck-mounted concrete pump according to claim 3, wherein switching members for regulating/controlling the hydraulic supply of the drive cylinders (3) are provided on and/or in the at least one valve block (5, 5).

    13. Truck-mounted concrete pump according to claim 2, wherein switching members for regulating/controlling the hydraulic supply of the drive cylinders (3) are provided on and/or in the at least one valve block (5, 5).

    14. Truck-mounted concrete pump according to claim 13, wherein no tubing is provided between the top and/or base side of the drive cylinders (3).

    15. Truck-mounted concrete pump according to claim 12, wherein no tubing is provided between the top and/or base side of the drive cylinders (3).

    16. Truck-mounted concrete pump according to claim 11, wherein no tubing is provided between the top and/or base side of the drive cylinders (3).

    17. Truck-mounted concrete pump according to claim 10, wherein no tubing is provided between the top and/or base side of the drive cylinders (3).

    18. Truck-mounted concrete pump according to claim 4, wherein no tubing is provided between the top and/or base side of the drive cylinders (3).

    19. Truck-mounted concrete pump according to claim 3, wherein no tubing is provided between the top and/or base side of the drive cylinders (3).

    20. Truck-mounted concrete pump according to claim 2, wherein no tubing is provided between the top and/or base side of the drive cylinders (3).

    Description

    BRIEF DESCRIPTION OF THE DRAWINGS

    [0018] Further details and advantages of the invention are described based on the embodiments exemplarily shown in the figures. Shown here are:

    [0019] FIG. 1: the drive unit of a concrete pump assembly including a water tank in a plan view;

    [0020] FIG. 2: the drive unit according to FIG. 1 in a perspective view, and

    [0021] FIG. 3: a side illustration of the left vehicle side of the truck-mounted concrete pump.

    DESCRIPTION OF THE PREFERRED EMBODIMENT

    [0022] FIG. 1 shows a view of a drive unit according to the invention of a concrete pump assembly 1 on a truck-mounted concrete pump not shown in further detail. The concrete pump assembly 1 serves to drive at least two feed cylinders not further shown, by means of which liquid concrete can be conveyed. The drive unit includes at least two hydraulic drive cylinders 3 moving the feed cylinders not illustrated here.

    [0023] The drive cylinders 3 are coupled to one another in a torsion-resistant manner via at least one connecting means 4, 4. In the exemplary embodiment of FIGS. 1 and 2, respectively two connecting means 4, 4 are provided on opposite ends of the drive cylinders 3. The connecting means 4, 4 are configured integrated with at least one valve block 5, 5. This can mean that the connecting means 4, 4 and the valve blocks 5, 5 include at least one common component and/or are arranged in at least one common housing and/or include at least one common housing part. The valve blocks 5, 5 and the connecting means 4, 4 here can include at least one common and in particular one-piece-fabricated component each.

    [0024] The drive cylinders 3 can be coupled directly or indirectly by means of the connecting means 4, 4. For example, it is conceivable that the drive cylinders 3 are coupled indirectly with the connecting means via a flange.

    [0025] Switches for regulating/controlling the hydraulic supply of the drive cylinders 3 can be provided in and/or on the valve blocks 5, 5 or the connecting means 4, 4. Other hydraulic components can also be configured integrated with the connecting means 4, 4.

    [0026] The connecting means 4, 4 can include a connecting plate with four logic valves for the actuation of the drive cylinders 3. Furthermore, pressure limiting valves and/or shock valves can be integrated, for the semi-closed circuit, with the connecting means 4, 4.

    [0027] Alternatively or additionally, the connecting means 4, 4 can include a connecting plate with directional control valves for a pivot cylinder and/or at least one valve for leakage compensation.

    [0028] The connecting means 4, 4 can further include at least one connection and/or at least one preparation or a connection for a displacement sensor and/or a pressure sensor.

    [0029] As can be seen in both figures, no additional hosing is provided between the top and the base sides of the two drive cylinders. However, at least one connecting line P, T can be provided between the two connecting means 4, 4, via which the top or base side of the drive cylinders 3 is connectable to the pump or to the tank. The connecting line P, T can in particular be arranged parallel to the drive cylinders 3 and/or run separately from these cylinders.

    [0030] The drive unit of the concrete pump assembly 1 can thus be configured as a unit that can be pre-assembled, in which no flexible hoses have to be used, and which can be assembled and disassembled more simply than known concrete pump assemblies.

    [0031] The concrete pump assembly 1 according to the invention can be used in a truck-mounted concrete pump, for example. Such a truck-mounted concrete pump is known per se and is shown here is a side illustration in FIG. 3. The mast pedestal of the truck-mounted concrete pump, on which the foldable distributing mast 102 is arranged, is referenced with the reference character 101. The distributing mast 102 consists of the mast arms 103, which are pivotable relative to one another and thus serve to unfold the distributing mast 102. In this illustration of the truck-mounted concrete pump, the built-in concrete pump assembly according to the invention is covered.