Abstract:
Die vorliegende Erfindung betrifft ein Verfahren und eine Vorrichtung zur Positionsbestimmung einer Kinematik (110, 115, 120) einer bevorzugt hydraulischen Maschine, wobei die Kinematik (110, 115, 120) gegenüber einem die Positionsbestimmung durchführenden Maschinenbereich (105) peripher angeordnet ist, und wobei es zu Betriebssituationen der Maschine kommt, in denen zwischen der Kinematik (110, 115, 120) und dem die Positionsbestimmung durchführenden Maschinenbereich (105) keine signaltechnische Verbindung möglich ist, und wobei insbesondere vorgesehen ist, dass die Position der Kinematik (110, 115, 120) anhand eines von dem die Positionsbestimmung durchführenden Maschinenbereich (105) durchgeführten direkten signaltechnischen Messverfahrens (230, 235, 240, 245) ermittelt wird, dass die Position der Kinematik (110, 115, 120) in Betriebssituationen der Maschine, in denen keine signaltechnische Verbindung möglich ist, anhand eines indirekten Messverfahrens (210, 215, 220, 225) ermittelt wird, wobei anhand des direkten Messverfahrens (230, 235, 240, 245) und anhand des indirekten Messverfahrens (210, 215, 220, 225) ermittelte Positionsdaten zur Positionsbestimmung der Kinematik (110, 115, 120) gemeinsam ausgewertet werden.
Abstract:
Sensor de desgaste y elemento de desgaste, conjunto y uso correspondientes. El sensor está destinado a un elemento de desgaste en una pala de una máquina de movimiento de tierras. El sensor comprende un circuito eléctrico sensor y por lo menos un brazo (23) alargado que se extiende en una dirección de detección que define un eje longitudinal. El brazo (23) presenta una base (25) y un extremo. El extremo se desgasta conjuntamente con el material de desgaste del elemento de desgaste. El brazo (23) comprende una pluralidad de conexiones eléctricas (27) que forman parte del circuito eléctrico sensor y que se extienden longitudes diferentes entre sí, medidas según el eje longitudinal a lo largo del brazo (23). La invención también se refiere a un elemento de desgaste de una pala de una máquina de movimiento de tierras, a un conjunto y a su uso para determinar el desgaste.
Abstract:
This invention relates to a front linkage for a construction machine which can uniquely calculate the rotation angle of the work tool relative to the arm and which can prevent the angle detection device from being damaged by contact with the soil during the digging work. With reference to Fig. 1, the front linkage (8) for a construction machine has an arm (20), a first link (28) in which one end portion is pivotally connected to the front end side of the arm (20), a second link (30) in which one end portion is pivotally connected to the other end portion of the first link (28), and a work tool (22) which is pivotally connected to the other end portion of the second link (30) and which is pivotally connected to the arm (20) in a further front end side than the one end portion of the first link (28). The first link (28) is positioned outward along the outer width of the side wall (34) of the arm (20). An angle detecting device for detecting the rotation angle of the first link (28) relative to the arm (20) is disposed between inner surface of the first link (28) and the side wall (34) outer surface of the arm (20). The angle detecting device may comprises a magnet which is disposed on the inner surface of the first link (28) and a magnetic detector which is disposed on the outer surface of the sidewall (34) of the arm (20).
Abstract:
The invention relates to rotator (10) for a jib-carried tool, said rotator comprising a stator (20) and a rotor (30) and a device (40, 50) for determining an absolute position of rotation between the stator (20) and the rotor (30). Said device (40, 50) comprises an encoder (40) surrounding the rotor (30; 30') and a sensor (50). The encoder (40) is arranged rotationally fixed relative to the stator (20) and the sensor (50) is arranged rotationally fixed relative to the rotor (30), or vice versa. Said sensor (50) is arranged to determine the absolute position of rotation between the stator (20) and the rotor (30).
Abstract:
A process for developing machine (100) classification systems includes using human experts to associate expected operations (278) with various machine states including drawbar pull, tool position, tool commands, gear, and ground speed, among others, to create a classification system that can be used in a particular machine (100). The classification system operates in real time to infer operations (278) such as dig, dump, travel, and push from machine (100) state inputs and logs the operations (278) for use in operational analysis and maintenance of the machine (100).
Abstract:
An integrated sensing device (10) with a suite of sensors assists construction machine operators in finding the correct level to dig a ditch/trench. The sensing device (10) includes a gravity sensor (40) to determine angles, a laser distance meter (LDM) (50), and a laser receiver (20) for detecting a known jobsite elevation. The sensing device is mounted to the dipper stick (208) of an excavator (200); the gravity sensor (40) detects the angle of the stick (208), and the laser receiver (20) detects a laser plane (90) of light that represents a known jobsite elevation. The LDM is aimed at another member of the machine that moves in a predetermined path as the bucket (210) is rotated, and the distance between the LDM and the target member is used to calculate the vertical elevation of the working tool edge (212). A display graphically shows the operator the proper dig depth and the present position of the working tool edge (212).