Abstract:
A hopper flashing for a hopper of a paving machine that is removably coupled to a lead edge of the hopper, made of a urethane compound such as MDI caprolactone or polycaprolactone, or TDI ester, and useable on its own or as provided between wing hopper flashings to help retain asphalt in the hopper.
Abstract:
본 발명은 섬유보강 상온재생아스콘 및 그 제조 방법에 관한 것으로, 보다 상세하게는, 폐아스콘으로부터 얻어진 순환 골재를 포함하여 이루어진 골재와; 스트레이트 아스팔트와, 유화제와, 물을 포함하여 혼합되어 있고, 상기 골재의 3.5중량% 내지 4.4중량%의 유화아스팔트와; 시멘트를 함유하지 아니하고, 상기 골재의 4.8중량% 내지 7.0중량%의 무시멘트 채움재와; 5mm 내지 30mm 길이의 초프(chop) 형태로 상기 골재의 0.08중량% 내지 0.15중량%의 섬유재를; 포함하여 조성되어, 차량 하중과 수분 침투에 의해 도포 포장에 발생되는 소성 변형 저항 능력, 균열 저항 능력, 포트홀 저항 능력을 보다 향상시킬 수 있는 아스팔트 혼합물인 섬유보강 상온재생아스콘 및 그 제조 방법을 제공한다.
Abstract:
A method and apparatus for filtering point cloud data obtained using a plurality of sensors generates data representative of a surface and for use with a specific type of sensor. The filtering allows certain machines and sensor types to be used to acquire point cloud data and different sensor types to be used during surface construction and modification. The method can be utilized with various types of machine controls and surface construction methods.
Abstract:
A rotary pivot arm positioning assembly for a paving, texturing, or curing machine allows the machine to automatically transition from an operational orientation to a transport orientation without manual repositioning or disconnection of its components. The assembly includes a pivot arm coupled to both the front and aft ends of an end frame by a helical actuator, slew gear drive or other rotary actuator. The rotary actuator articulates each pivot arm, as well as the adjustable leg and steerable crawler connected to the pivot arm, through at least a 90-degree range. The end frame may be fixed to the left or right end of the machine. The assembly may additionally include a second helical actuator, slew gear drive or rotary actuator connecting each steerable crawler to the adjustable leg and configured to rotate the steerable crawler through a full 360 degrees.
Abstract:
The invention relates to a method for aligning tracks of a roadwork machine (10), characterized by using a track alignment detection unit (1) that is attached to a first track unit (12) for allowing detection of an orientation of the first track unit (12), and frame orientation detection means (15) that are attached to the machine frame (11) for allowing detection of an orientation of the machine frame (11), the method comprising determining an initial orientation (50) of the machine frame (11), and determining an initial orientation (60) of the first track unit (12), determining whether a difference between a most recently determined orientation of the machine frame (11) and a most recently determined orientation of the first track unit (12) is within a predefined threshold value, initializing a pivoting of the first track unit (12), determining a changed orientation (60') of the first track unit (12) after the pivoting, and determining an orientation of the machine frame (11) after the pivoting.
Abstract:
The slope angle of a blade on an earthmoving machine is automatically controlled based on measurements from a three-axis gyroscope, a blade slope angle tilt sensor, and a blade tip angle tilt sensor mounted on the blade. A three-axis gyroscope has high dynamic response and high resistance to mechanical disturbances but is subject to potentially unbounded errors. A tilt sensor has bounded errors but has a slow dynamic response and a high sensitivity to mechanical disturbances. The combination of a three-axis gyroscope and two tilt sensors provides an advantageous measurement system. Algorithms for performing proper fusion of the measurements account for the lack of synchronization between the three-axis gyroscope and the tilt sensors and also screen out invalid measurements from the tilt sensors. The blade slope angle is controlled based on a reference blade slope angle and an estimate of the blade slope angle computed from properly fused measurements.
Abstract:
A distance and temperature sensing unit is used on paving vehicles. The unit has a first set of range sensors of a first diameter and a second set of range sensors of a second diameter. The unit calculates a weighted average distance to a road surface based on ranges measured by the multiple sensors. The unit also has a temperature sensor on a temperature bar. The bar is affixed to the unit by a flexible connection preventing break-off when the bar encounters obstacles, like the road surface, while the paving vehicle is moving.
Abstract:
A distance and temperature sensing unit is used on paving vehicles. The unit has a first set of range sensors of a first diameter and a second set of range sensors of a second diameter. The unit calculates a weighted average distance to a road surface based on ranges measured by the multiple sensors. The unit also has a temperature sensor on a temperature bar. The bar is affixed to the unit by a flexible connection preventing break-off when the bar encounters obstacles, like the road surface, while the paving vehicle is moving.
Abstract:
Eine Bodenschneidvorrichtung weist einen Fugenschneider (1) und einen getrennt von dem Fugenschneider (1) angeordneten Laser (2) auf. Der Fugenschneider (1) wird derart ausgerichtet, dass ein von dem als Ziel dienenden Laser (2) kommender Laserstrahl (16) auf eine Peileinrichtung (15) auftrifft. Die Peileinrichtung (15) ermöglicht eine Auswertung des Laserstrahls derart, dass Antriebsräder (6) der Vorschubeinrichtung (1) derart angesteuert werden und den Fugenschneider (1) bewegen, dass der Laserstrahl (16) stets auf die Peileinrichtung (15) auftrifft. Auf diese Weise ist ein automatisches Arbeiten mit dem Fugenschneider (1) möglich.
Abstract:
An alignment device comprising a ground-engaging base member that includes at least one penetrating means and movably attached thereto at least one pin supporting member wherein once the penetrating means is inserted into the adjacent ground the pin supporting member can be suitably positioned so as to support a pin at a selected location.