Patent application number | Description | Published |
20090166050 | Method and Device for Measuring Soil Parameters by Means of Compaction Machines - A soil compaction device has a vibrated contact element that makes contact with the soil during a contact phase and that is exposed to a contact force exerted by the soil and travels over a contact distance. A dynamic stiffness of the soil is formed from the gradient of the contact force and from the contact distance. Furthermore, a contact surface parameter to take account of the actual contact surface of the contact element with the soil is determined. The dynamic deformation modulus is then the product of the contact surface parameter and the dynamic stiffness. The method allows the determination of the dynamic deformation modulus, and hence of the soil stiffness, during the compaction operation. | 07-02-2009 |
20110016974 | APPARATUS AND METHOD FOR DETECTING DAMAGE TO A MACHINE - An apparatus for detecting damage to a machine that is excited at a previously known frequency by a vibration exciter, including an acceleration sensor for recording a current amplitude spectrum of an upper mass. A previously known amplitude spectrum of the upper mass is stored in a memory device. The current amplitude spectrum is compared with the previously known amplitude spectrum in a comparison device. If the comparison device determines that the spectra differ from one another, a corresponding deviation signal is generated and is output via a display device for informing the operator in order to inform the latter of possible damage. | 01-27-2011 |
20120256470 | Drum Housing For A Working Drum Of A Construction Machine Or Mining Machine, Construction Machine Or Mining Machine, As Well As Method For Monitoring The Condition Of A Working Drum Of A Construction Machine Or Mining Machine - In a drum housing for a working drum of a construction machine or mining machine, said working drum being provided with tools and rotating about a drum axis, with a housing shell which at least partially encloses the circumference of the working drum, and with at least one inspection opening for a monitoring device arranged in the housing shell, wherein said monitoring device inspects the condition of the working drum or the tools thereof, it is provided for the following features to be achieved: a closing mechanism is arranged on the outside of the housing shell, said closing mechanism enabling closure of the at least one inspection opening. | 10-11-2012 |
20130197820 | Method For Determining The Wear State - This invention relates to a method for determining a wear state of a chisel, a chisel holder, and/or a chisel holder replacement system equipped with a chisel and chisel holder. For this method to give the user qualitative and quantitative information about the wear, according to one embodiment of this invention, a position of at least one point of the chisel and/or the chisel holder is determined by a contactless measurement method and a corresponding measurement result is compared in a switching unit to a reference value stored in a memory device. | 08-01-2013 |
20140070598 | Drum Housing For A Working Drum Of A Construction Machine Or Mining Machine, Construction Machine Or Mining Machine, As Well As Method For Monitoring The Condition Of A Working Drum Of A Construction Machine Or Mining Machine - In a drum housing for a working drum of a construction machine or mining machine for working off milled material movable in a working direction, said working drum being provided with tools and rotating about a drum axis, with a housing shell that at least partially encloses the circumference of the working drum, and with at least one monitoring device arranged radially outside of the housing shell, said monitoring device inspecting the condition of the working drum or of the tools thereof, it is provided for the following features to be achieved: at least one inspection opening for each monitoring device is arranged in the housing shell, and a partial flow of the milled material passes through the at least one inspection opening during the milling operation and guiding devices conduct the partial flow, in radial direction behind the housing shell, in front of or behind the working drum as seen in the working direction. | 03-13-2014 |
20140097665 | DETERMINING MILLED VOLUME OR MILLED AREA OF A MILLED SURFACE - A system is provided for determining a volume of material milled, or a surface area milled, by a construction machine having a milling drum. The volume of material milled is determined as a function of a cross-sectional area of material to be milled in front of the milling drum and a distance traveled by the construction machine while actively milling. The cross-sectional area is determined in part by direct machine observation of one or more profile characteristics of a ground surface in front of the milling drum. The surface area milled is determined as a function of the width of the area to be milled in front of the milling drum and a distance traveled by the construction machine while actively milling. | 04-10-2014 |
20140205400 | Milling Machine, In Particular Surface Miner, And Method For Mining Milled Material Of An Open Cast Surface - In a method for milling an opencast mining surface or for milling off layers of an asphalt or concrete traffic surface with a milling machine removing the ground surface, by milling the ground surface along a predetermined milling track and by transporting the milled material via a conveying device to at least one container of a truck that travels along next to the milling machine, a relative position between the container and the conveying device is automatically controlled to regulate the loading of the container. | 07-24-2014 |
20140244208 | Method And Device For Determining An Area Cut With A Cutting Roll By At Least One Construction Machine Or Mining Machine - In a method for determining an area milled by at least one construction machine or at least one mining machine by means of a milling drum ( | 08-28-2014 |
20140324364 | Method For Determining The Wear State - This invention relates to a method for determining a wear state of a chisel, a chisel holder, and/or a chisel holder replacement system equipped with a chisel and chisel holder. For this method to give the user qualitative and quantitative information about the wear, according to one embodiment of this invention, a position of at least one point of the chisel and/or the chisel holder is determined by a contactless measurement method and a corresponding measurement result is compared in a switching unit to a reference value stored in a memory device. | 10-30-2014 |