Apparatus for track machining, method for operating the apparatus for track machining and tamping assembly

Abstract

An apparatus for track machining contains a fastening device, at least one machining device and at least one vibration decoupler operating between the at least one machining device and the fastening device and having adjustable stiffness and/or adjustable damping for at least partially decoupling a movement of the fastening device from a movement of the at least one machining device.

1 . An apparatus for track machining, the apparatus comprising:
 a fastening device;   at least one machining device for at least one of compacting a track bed and for tightening and loosening a screw connection; and   at least one vibration decoupler with at least one of an adjustable stiffness and an adjustable damping to at least partially decouple said fastening device and said at least one machining device.   
     
     
         2 . The apparatus according to  claim 1 , further comprising an adjusting means that is in signal communication with said at least one vibration decoupler, for adjusting at least one of the stiffness and the damping. 
     
     
         3 . The apparatus according to  claim 2 , further comprising a drive unit connected to said adjusting means for providing at least one of a fluidic and mechanical signal for automated adjustment of at least one of the stiffness and the damping. 
     
     
         4 . The apparatus according to  claim 1 , wherein said at least one vibration decoupler has a chamber filled with a fluid for at least proportional transmission of forces between said fastening device and said at least one machining device via the fluid. 
     
     
         5 . The apparatus according to  claim 4 , wherein said chamber has a reversibly deformable chamber wall. 
     
     
         6 . The apparatus according to  claim 4 , further comprising a pressure regulating unit for controlling a pressure of the fluid in said chamber. 
     
     
         7 . The apparatus according to  claim 4 , wherein said at least one vibration decoupler has an adjustable throttle valve for limiting a flow of the fluid. 
     
     
         8 . The apparatus according to  claim 1 , wherein said at least one vibration decoupler has a braking unit for adjustable braking of said at least one machining device relative to said fastening device. 
     
     
         9 . The apparatus according to  claim 1 , further comprising at least one machine motor for providing power required for operating said at least one machining device, said at least one machine motor is disposed with respect to said at least one vibration decoupler on a side of said at least one machining device. 
     
     
         10 . The apparatus according to  claim 1 , wherein said at least one machining device has a tamping unit for track bed treatment. 
     
     
         11 . The apparatus according to  claim 10 , wherein said at least one machining device has a vibration generator for generating a vibratory movement. 
     
     
         12 . The apparatus according to  claim 1 , wherein said at least one machining device has a screwing unit for at least one of tightening and loosening the screw connection. 
     
     
         13 . The apparatus according to  claim 12 , wherein said at least one machining device has a plurality of screwing units. 
     
     
         14 . The apparatus according to  claim 12 , further comprising a clamping device for reversibly fastening said at least one machining device to a rail. 
     
     
         15 . The apparatus according to  claim 12 , further comprising a feeding device for providing screw members. 
     
     
         16 . The apparatus according to  claim 1 , wherein said at least one machining device has a cutting tool for cutting off a screw bolt. 
     
     
         17 . The apparatus according to  claim 1 , further comprising a displacement device for at least one of displacing and pivoting said at least one machining device relative to said fastening device. 
     
     
         18 . The apparatus according to  claim 17 , further comprising at least two tamping units being at least one of displaceable relative to one another and pivotable relative to one another by means of said displacement device. 
     
     
         19 . The apparatus according to  claim 1 , further comprising a positioning device, to which said fastening device is attached, for positioning said at least one machining device on a track. 
     
     
         20 . The apparatus according to  claim 19 , wherein said positioning device has a multi-axis robot to which said fastening device is attached. 
     
     
         21 . The apparatus according to  claim 19 , wherein said positioning device has a carriage. 
     
     
         22 . The apparatus according to  claim 21 , further comprising a fixing unit for detachably fixing said at least one machining device to said carriage. 
     
     
         23 . The apparatus according to  claim 1 , further comprising a sensor for at least one of detecting at least one of a position and an orientation of an object to be machined of a track and for monitoring a working space. 
     
     
         24 . A method for operating an apparatus for track machining, which comprises the steps of:
 providing at least one machining device disposed on a vibration decoupler;   adjusting the vibration decoupler between a first coupling state in which the vibration decoupler has at least one of a first stiffness and a first damping, and a second coupling state in which the vibration decoupler has at least one of a second stiffness different from the first stiffness and a second damping different from the first damping; and   performing at least one of compacting a track bed and tightening and loosening a screw connection by means of the at least one machining device.   
     
     
         25 . The method according to  claim 24 , which comprises displacing the at least one machining device from a restoring position to a working position, wherein the vibration decoupler is set to the first coupling state. 
     
     
         26 . The method according to  claim 24 , which further comprises machining a track, wherein the vibration decoupler is set to the second coupling state. 
     
     
         27 . The method according to  claim 24 , which further comprises performing at least one of tightening and loosening two screw connections of a track at least one of one after the other and simultaneously. 
     
     
         28 . The method according to  claim 27 , wherein two rotatably drivable screwing units are engaged simultaneously with one of the screw connections in each case. 
     
     
         29 . The method according to  claim 24 , which further comprises locking the at least one machining device to at least one rail when machining a track. 
     
     
         30 . The method according to  claim 24 , wherein the machining of a track takes place on a frog of a turnout. 
     
     
         31 . A tamping assembly for track bed treatment, comprising:
 a fastening device;   a machine motor;   at least one tamping unit having a penetrator, being formed as a tamping pick tube, and a vibration generator, wherein at least one of said vibration generator and said machine motor is disposed in said tamping pick tube; and   a displacement device for at least one of displacing and pivoting said at least one tamping unit relative to said fastening device.