Method for working ground pavements, as well as self-propelled construction machine

Abstract

In a self-propelled construction machine for working ground pavements comprisingat least one machine frame,at least one height-adjustable milling drum for working the ground pavement in a working operation, driven by at least one drive unit,at least one control device for monitoring and controlling the milling depth of the milling drum and the speed of the construction machine,it is provided for the following features to be achieved: that a monitoring device detects an interruption of the working operation, and when detecting the interruption of the working operation emits a signal to interrupt the drive of the milling drum.

1 - 17 . (canceled) 
     
     
         18 . A self-propelled construction machine for working ground pavement, comprising:
 at least one machine frame;   at least one height-adjustable milling drum configured to work the ground pavement in a working operation, driven by at least one drive unit; and   at least one device configured to:
 monitor and control a milling depth of the milling drum and a speed of the construction machine; 
 detect an interruption of the working operation, based on at least one monitored operating parameter of the construction machine; 
 upon detection of the interruption of the working operation, to emit one or more signals to interrupt the drive of the milling drum via the drive unit and to raise the milling drum by a specified amount. 
   
     
     
         19 . The self-propelled construction machine of  claim 18 , wherein the at least one device is further configured:
 after the drive of the milling drum is reinstated, to delay lowering of the milling drum into contact with the ground pavement until the milling drum has reached a specified operating speed of revolution.   
     
     
         20 . The self-propelled construction machine of  claim 18 , wherein:
 the at least one device is configured to delay interruption of the drive of the milling drum until after a specified time delay.   
     
     
         21 . The self-propelled construction machine of  claim 18 , wherein:
 the milling drum is accommodated in a milling drum housing further comprising first and second edge protectors on opposing end sides thereof, a hold-down device, and a scraper; and   the at least one device is configured to determine whether the first and second edge protectors, the hold-down device, or the scraper are resting on the ground, and to at least delay reinstating of the drive of the milling drum until the first and second edge protectors, the hold-down device, and the scraper are resting on the ground.   
     
     
         22 . The self-propelled construction machine of  claim 18 , wherein:
 the at least one device is configured, upon detection of the interruption of the working operation, to further generate a corresponding visual or audible signal.   
     
     
         23 . The self-propelled construction machine of  claim 18 , wherein the at least one device is configured to detect an interruption of the working operation by comparing the at least one monitored operating parameter with at least one specified limit value. 
     
     
         24 . The self-propelled construction machine of  claim 23 , wherein the at least one operating parameter comprises a nominal or actual advance speed, and an interruption of the working operation is detected when the nominal or actual advance speed becomes zero. 
     
     
         25 . The self-propelled construction machine of  claim 23 , wherein the at least one operating parameter comprises a nominal or actual milling depth, and an interruption of the working operation is detected when the nominal or actual milling depth becomes negative. 
     
     
         26 . The self-propelled construction machine of  claim 18 , comprising a power transmission device configured to transmit a driving power from the drive unit to the milling drum, and further configured responsive to the emitted signal from the at least one device to interrupt the drive of the milling drum. 
     
     
         27 . The self-propelled construction machine of  claim 18 , wherein the at least one device is configured, following the interruption of the drive of the milling drum, to detect whether the working operation is to be continued, and upon detecting the intended continuation of the working operation to emit a second signal for the renewed driving of the milling drum. 
     
     
         28 . A method for working ground pavements with a self-propelled construction machine in which a milling drum is driven by a drive unit, wherein the milling drum works the ground pavement in a working operation, the method comprising:
 monitoring and controlling a milling depth of the milling drum and a speed of the construction machine;   detecting an interruption of the working operation, based on at least one monitored operating parameter of the construction machine;   upon detection of the interruption of the working operation, emitting one or more signals to interrupt the drive of the milling drum via the drive unit and to raise the milling drum by a specified amount.   
     
     
         29 . The method of  claim 28 , further comprising:
 after the drive of the milling drum is reinstated, delaying lowering of the milling drum into contact with the ground pavement until the milling drum has reached a specified operating speed of revolution.   
     
     
         30 . The method of  claim 28 , comprising:
 delaying interruption of the drive of the milling drum until after a specified time delay.   
     
     
         31 . The method of  claim 28 , wherein the milling drum is accommodated in a milling drum housing further comprising first and second edge protectors on opposing end sides thereof, a hold-down device, and a scraper, the method further comprising:
 determining whether the first and second edge protectors, the hold-down device, or the scraper are resting on the ground; and   at least delaying reinstating of the drive of the milling drum until the first and second edge protectors, the hold-down device, and the scraper are resting on the ground.   
     
     
         32 . The method of  claim 28 , comprising:
 upon detection of the interruption of the working operation, further generating a corresponding visual or audible signal.   
     
     
         33 . The method of  claim 28 , wherein an interruption of the working operation is detected by comparing the at least one monitored operating parameter with at least one specified limit value. 
     
     
         34 . The method of  claim 33 , wherein the at least one operating parameter comprises a nominal or actual advance speed, and an interruption of the working operation is detected when the nominal or actual advance speed becomes zero. 
     
     
         35 . The method of  claim 33 , wherein the at least one operating parameter comprises a nominal or actual milling depth, and an interruption of the working operation is detected when the nominal or actual milling depth becomes negative. 
     
     
         36 . The method of  claim 28 , further comprising, following the interruption of the drive of the milling drum:
 detecting whether the working operation is to be continued; and   upon detecting the intended continuation of the working operation, emitting a second signal for the renewed driving of the milling drum.   
     
     
         37 . The method of  claim 36 , wherein the intended continuation of the working operation is detected by:
 monitoring at least one operating parameter of the construction machine; and   comparing the at least one operating parameter with at least one specified limit value.