Metering device

Abstract

A metering device for metering bulk materials comprises a flap and an insert, in which the flap can be pivoted in the insert, and wherein the flap can be subjected to vibrations. The insert is dimensionally stable while the flap vibrates, in which it is possible to prevent deformations of the insert during the vibration of the flap. The design of the flap therefore can be adapted to the insert without risking that parts of the flap, e.g., an edge of a disk rub against the insert. The abrasion of the material of the insert, as well as the contamination of the bulk material, can be prevented in this fashion during the vibration of the flap. Therefore, the insert is also subjected to fewer mechanical stresses such that its service life is relatively long.

1 . A metering device for metering bulk materials comprising:
 a flap, wherein the flap is allowed vibrations; and   an insert,
 wherein the flap is allowed to pivot within the insert, and 
 wherein the flap is supported in the insert which remains dimensionally stable during the vibrations. 
   
   
   
       2 . The metering device according to  claim 1 , wherein the insert is made of a relatively strong and relatively hard material. 
   
   
       3 . The metering device according to  claim 1 , further comprising:
 at least one elastically deformable vibration element,
 wherein the flap features at least one journal that is supported in the insert; and 
   a disk,
 wherein the at least one elastically deformable vibration element is arranged around the at least one journal between the at least one journal and the insert. 
   
   
   
       4 . The metering device according to  claim 3 , wherein the at least one elastically deformable vibration element features an anti-friction layer on its inner side. 
   
   
       5 . The metering device according to  claim 4 , wherein a seal gas acts upon the at least one elastically deformable vibration element. 
   
   
       6 . The metering device according to  claim 3 , featuring a gap between the insert and the disk when the flap is in a closed position in the insert. 
   
   
       7 . The metering device according to  claim 3 , wherein the insert comprises:
 a first part, a second part and a connecting means, wherein the first part and the second part are separably connected to one another via the connecting means, and wherein the at least one journal is supported between the first part and the second part.   
   
   
       8 . The metering device according to  claim 7 , further comprising:
 a pivoting mechanism, wherein an elastomer coupling is arranged between the at least one journal and the pivoting mechanism.   
   
   
       9 . The metering device according to  claim 8 , in which the pivoting mechanism features a pneumatic linear drive for pivoting the flap. 
   
   
       10 . The metering device according to  claim 8 , further comprising:
 a vibration mechanism with an eccentric rotor and rotating means,
 wherein the eccentric rotor is rotatably arranged on a pivoting axis of the flap, and wherein the rotor vibrates the flap when the rotating means turn the rotor. 
   
   
   
       11 . A metering device for metering bulk materials which comprises a flap and an insert, wherein the flap can be pivoted in the insert, wherein the flap can be vibrated, and wherein the flap is supported in the insert in such a way that the insert essentially is dimensionally stable while the flap vibrates. 
   
   
       12 . The metering device according to  claim 11 , wherein the insert is made of a relatively strong and relatively hard material. 
   
   
       13 . The metering device according to  claim 11  which comprises at least one elastically deformable vibration element and in which the flap features at least one journal that is supported in the insert and a disk, wherein the vibration element is arranged around the journal between the journal and the insert. 
   
   
       14 . The metering device according to  claim 13 , wherein the elastically deformable vibration element features an anti-friction layer on its inner side. 
   
   
       15 . The metering device according to  claim 13 , featuring means for acting upon the vibration elements with a seal gas. 
   
   
       16 . The metering device according to  claim 11 , featuring a gap between the insert and the disk when the flap is in a closed position in the insert. 
   
   
       17 . The metering device according to  claim 11 , in which the insert features a first part, a second part and connecting means, wherein the first part and the second part are separably connected to one another with the aid of the connecting means, and wherein the journal is supported between the first part and the second part. 
   
   
       18 . The metering device according to  claim 11 , featuring a pivoting mechanism, wherein an elastomer coupling is arranged between the journal and the pivoting mechanism. 
   
   
       19 . The metering device according to  claim 18 , in which the pivoting mechanism features a pneumatic linear drive for pivoting the flap. 
   
   
       20 . The metering device according to  claim 11 , featuring a vibration mechanism with an eccentric rotor and rotating means, wherein the rotor is rotatably arranged on a pivoting axis of the flap, and wherein the rotor vibrates the flap when the rotating means turn the rotor.