Patent classifications
E01C19/4853
ROAD PAVER WITH QUICK COUPLING APPARATUS FOR THE TRANSVERSE DISTRIBUTION DEVICE, AND METHOD
The present invention relates to a road paver, particularly a small road paver, for paving a subbase layer in a working direction (a), with a machine frame, a traveling mechanism, a material hopper for receiving paving material, a paving screed for smoothing and compacting the paving material, a transverse distribution device for distributing paving material in the working direction (a) in front of the paving screed and transversely to the working direction (a), the transverse distribution device being supported at the machine frame via a support housing, and a height adjustment device for vertical adjustment of the transverse distribution device relative to the machine frame, wherein the support housing is supported at the machine frame such that it is height-adjustable via a quick coupling apparatus, wherein the quick coupling apparatus comprises at least one oblong hole with an expanded insertion portion and a sliding device, wherein the sliding device can be inserted into the oblong hole through the expanded insertion portion, and wherein the sliding device in the inserted state slides in the region of the oblong hole outside the expanded insertion portion during vertical adjustment of the transverse distribution device through the height adjustment device, and wherein the sliding device is supported in a form-closed manner in a direction perpendicular to the height adjustment in this region. Moreover, the invention relates to a method for mounting a transverse distribution device on a road paver.
MEASURING PAVING THICKNESS DURING SLIP FORM PAVING
A slip form paving machine includes a machine frame, a plurality of ground engaging wheels or tracks, and front and rear height adjustable lifting columns, the lifting columns being adjustable to adjust a height of the machine frame relative to a ground surface. A slip form mold is supported from the machine frame. A front height sensor configured to detect a distance of the machine frame from the ground surface ahead of the concrete slab and generate a front height signal. A rear height sensor is configured to detect a distance of the machine frame from an upper surface of the concrete slab and generate a rear height signal. A controller is configured to receive the front and rear height signals and to determine a thickness of the concrete slab based at least in part on the front and rear height signals.
ADJUSTABLE STRING LINE SENSORS FOR SLIP FORM PAVING
A slip form paving machine includes a machine frame, a plurality of ground engaging wheels or tracks, and front and rear height adjustable lifting columns adjustable to adjust a longitudinal inclination of the machine frame in a paving direction. A slip form mold is supported from the machine frame. The machine further includes a front stringline sensor, a front sensor actuator arranged to adjust a vertical position of the front stringline sensor relative to the machine frame, a rear stringline sensor, and a rear sensor actuator arranged to adjust a vertical position of the rear stringline sensor relative to the machine frame. A controller is configured to send command signals to the front and rear sensor actuators to cause an adjustment in the longitudinal inclination of the machine frame.
ROLL CONTROL DURING SLIP FORM PAVING
A slip form paving machine includes a machine frame, a plurality of ground engaging wheels or tracks, and front and rear height adjustable lifting columns supporting the machine frame from the ground engaging wheels or tracks, the lifting columns being adjustable to adjust a longitudinal inclination of the machine frame in a paving direction. A slip form mold is supported from the machine frame for molding a mass of concrete into a formed not yet hardened concrete slab as the paving machine moves forward in the paving direction. An oscillating beam is supported from the machine frame behind the slip form mold for engaging and oscillating transversely to the paving direction upon an upper surface of the formed not yet hardened concrete slab to smooth the upper surface. A roll size sensor is configured to detect a size of a roll of not yet hardened concrete created in front of the oscillating beam.
AUTOMATICALLY ADJUSTING SWING LEGS FOR MOUNTING AND ALIGNING AND REORIENTING CRAWLERS
A paving machine for spreading, leveling and finishing concrete having a main frame, center module, bolsters laterally movably, and a crawler track associated with respective aft and forward ends of the bolsters. A bolster swing leg for each crawler track supports an upright jacking column. A worm gear drive permits rotational movements of the crawler track and the jacking column. A hinge bracket is interposed between each swing leg and a surface of the bolsters to enable pivotal movements of the swing leg. A length-adjustable holder engages the pivot pin on the hinge bracket and pivotally engages the swing leg. The holder permits pivotal motions of the swing leg in its length-adjustable configuration and prevents substantially any motion of the swing leg in its fixed-length configuration. A feedback loop cooperates with transducers keeping the crawler tracks position. The paving machine can be reconfigured into a narrowed transport configuration.
Road paver with control unit for determining the weight and/or the center of gravity and/or the width of the screed and corresponding method
A road paver is provided with a drive, a bunker, a material conveying device, a screed comprising a tamping device and an electric heating device on the screed and/or on the tamping device, wherein a control unit is configured in such a manner that it determines, by means of a measurable electrical operating parameter of the electrical heating device on the screed and/or on the tamping device, the weight and/or the center of gravity and/or the width of the screed transversely to the working direction of the screed. A method for determining a width and/or a weight and/or a center of gravity of a screed of a road paver, comprising the steps: measuring an electrical variable of a heating device, in particular a heating power, a heating resistance or a power consumption of the heating device; calculating the weight and/or the center of gravity and/or the width of the screed transversely to the working direction of the screed by means of the electrical operating variable.
ROAD PAVER WITH SYSTEM FOR REPLACING A HEATING DEVICE OF A BEARING BLOCK ARRANGEMENT FOR A DISTRIBUTING AUGER
A road paver comprises a paving screed, a bearing block arrangement and a distributing auger. The bearing block arrangement comprises a bearing block, a cover and a heating device. The distributing auger is rotatably mounted at the bearing block for distributing paving material. The heating device is received in an accommodation space of the bearing block arrangement. The bearing block arrangement is configured to be selectively brought into a working configuration and into a removal configuration, wherein the heating device is removable from the accommodation space in the removal configuration, but not in the working configuration. At least a base part of the cover is connected to the bearing block both in the working configuration and in the removal configuration. In the working configuration, the base part of the cover at least partially covers the heating device towards a front with respect to a paving direction of the road paver.
HYDRAULIC PAVER SYSTEM, A METHOD, AND A CONTROL UNIT FOR OPERATING AN ELECTRIC PAVER IN DIFFERENT OPERATION MODES, AN ELECTRIC PAVER FOR CONSTRUCTING A ROAD SURFACE, A COMPUTER PROGRAM, AND A COMPUTER READABLE MEDIUM
A hydraulic paver system for operating an electric paver in different operation modes including a first hydraulic circuit and a second hydraulic circuit, wherein the first hydraulic circuit includes a first hydraulic pump arrangement configured for providing a hydraulic driving power to driving device(s) for driving the electric paver, and the second hydraulic circuit includes a second hydraulic pump arrangement configured for providing hydraulic working power for working device(s) of the electric paver for paving, wherein the second hydraulic pump arrangement is driven in the paving mode for providing the hydraulic working power, and a control unit for operating the electric paver in the different operation modes, wherein in the transporting mode the first hydraulic circuit is activated and the second hydraulic circuit is deactivated, wherein the deactivated second hydraulic circuit provides a hydraulic standby power that is smaller than the hydraulic working power provided in the paving mode.
MULTIPLE GATES FOR DYNAMIC PAVING
Disclosed is a dynamic paving material paver. The dynamic paving material paver may comprise: a material distribution device; a material leveling device; at least one actuator; and a plurality of gates configured to distribute a paving material on a sub-base via the material leveling device, wherein the plurality of gates are mechanically coupled to the at least one actuator, configured to partially obstruct a flow of the paving material received from the material distribution device, and located proximate to, and ahead of, the material leveling device in a direction of the flow of paving material from the material distribution device.
Automatically adjusting swing legs for mounting and aligning and reorienting crawlers
A paving machine for spreading, leveling and finishing concrete having a main frame, center module, bolsters laterally movably, and a crawler track associated with respective aft and forward ends of the bolsters. A bolster swing leg for each crawler track supports an upright jacking column. A worm gear drive permits rotational movements of the crawler track and the jacking column. A hinge bracket is interposed between each swing leg and a surface of the bolsters to enable pivotal movements of the swing leg. A length-adjustable holder engages the pivot pin on the hinge bracket and pivotally engages the swing leg. The holder permits pivotal motions of the swing leg in its length-adjustable configuration and prevents substantially any motion of the swing leg in its fixed-length configuration. A feedback loop cooperates with transducers keeping the crawler tracks position. The paving machine can be reconfigured into a narrowed transport configuration.