Apparatus for soil compaction

Abstract

An apparatus for soil compaction, such as a vibration tamper, comprises a substructure having a tamper foot and a bottom guide cylinder arranged thereon, and a superstructure having a housing, an upper guide cylinder arranged thereon and at least one drive unit which is in operative connection via a drive train with the tamper foot in the substructure in such a way that it can be moved relative to the superstructure along at least one compaction axis (A v ) with at least one compaction amplitude (a), with at least one stop element being arranged between the superstructure and the substructure, which stop element will stop the movement of the substructure relative to the superstructure upon exceeding a maximum compaction amplitude (a max ).

1 . An apparatus for soil compaction, especially a vibration tamper, comprising:
 a substructure having a tamper foot and a bottom guide cylinder arranged thereon, and   a superstructure having a housing,   an upper guide cylinder arranged on the housing and at least one drive unit which is in operative connection via a drive train with the tamper foot in the substructure in such a way that it can be moved relative to the superstructure along at least one compaction axis (A v ) with at least one compaction amplitude (a), with the upper guide cylinder and the bottom guide cylinder being movable relative to one another in the direction of the compaction axis (A v ) by forming at least one axial guide,   wherein at least one stop element is arranged between the superstructure and the substructure, which stop element will stop the movement of the substructure relative to the superstructure upon exceeding a maximum compaction amplitude (a max ).   
     
     
         2 . An apparatus according to  claim 1 , wherein the stop element is configured and arranged in such a way that upon exceeding the maximum compaction amplitude (a max ) it is pressed by the bottom guide cylinder against the housing and/or the upper guide cylinder. 
     
     
         3 . An apparatus according to  claim 1 , wherein the stop element is arranged as an elastic stop element. 
     
     
         4 . An apparatus according to  claim 1 , wherein the stop element comprises at least one fastening element, by means of which it is held in a substantially stationary manner on the superstructure or substructure in the direction of the compaction axis (A v ). 
     
     
         5 . An apparatus according to  claim 1 , wherein the stop element is held by the upper guide cylinder or the bottom guide cylinder in a substantially stationary manner orthogonally to the compaction axis (A v ). 
     
     
         6 . An apparatus according to  claim 1 , wherein the drive train is guided within the upper guide cylinder and the bottom guide cylinder, and wherein the stop element comprises a stop sleeve or a ring element which encloses the drive train at least partially. 
     
     
         7 . An apparatus according to  claim 1 , wherein the upper and bottom guide cylinders are positioned relative to one another in an axial plain slideway, with the bottom guide cylinder forming an inside guide and the upper guide cylinder forming an outside guide, or vice versa, and with the stop element comprising a stop sleeve which is placed over the inside guide and comes into operative engagement at least when exceeding the maximum compaction amplitude (a max ) with an outside guide stop region on the outside guide and/or an inside guide stop region on the inside guide by stopping the relative movement between the inside guide and the outside guide. 
     
     
         8 . An apparatus according to  claim 1 , wherein the outside guide stop region is arranged on a face side region of the outside guide. 
     
     
         9 . An apparatus according to  claim 1 , wherein the upper and bottom guide cylinders are positioned relative to one another in a plain slideway, with the bottom guide cylinder forming an inside guide and the upper guide cylinder forming an outside guide, or vice versa, and with the stop element being arranged within the outside guide and coming into operative engagement at least when exceeding the maximum compaction amplitude (a max ) with an inside guide stop region on the inside guide by stopping the relative movement between the inside guide and the outside guide. 
     
     
         10 . An apparatus according to  claim 1 , wherein the inside guide stop region is arranged on a face side region of the inside guide.