US2020158097A1PendingUtilityA1

Concrete pump assembly

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Assignee: LIEBHERR BETONPUMPEN GMBHPriority: Nov 21, 2018Filed: Nov 20, 2019Published: May 21, 2020
Est. expiryNov 21, 2038(~12.3 yrs left)· nominal 20-yr term from priority
Inventors:Johannes FetzerViktor Seitz
F04B 17/06F04B 15/02F04B 15/023E04G 21/0445E04G 21/0436F04B 53/22F04B 53/16F04B 11/005F04B 9/117F05B 2210/13F04B 7/0019F04B 17/00F04B 9/109F04B 53/00
23
PatentIndex Score
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Claims

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

exact text as granted — not AI-modified
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 ).

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