540 results about "Tipper truck" patented technology

An article dump truck has a front tractor unit connected to an associated rear trailer unit with a tipping container by an articulated coupling. The articulated coupling is operable to allow the front tractor unit and rear trailer unit to pivot about a vertical pivot axis, rams being provided to turn the front tractor unit and rear trailer unit about the pivot to steer the dump truck. The articulated coupling also allows the front tracter unit and rear trailer unit to rotate relative to each other about a longitudinal axis of the dump truck. In addition, the front tractor unit has a front chassis mounted on a pair of wheels by an independent suspension system.

To measure the loaded weight of a dump truck, accurately and inexpensively. In a dump truck comprising a set of equalizer bars respectively provided rotatably on the left and right-hand sides of a vehicle body; first vehicle wheels supported respectively by way of first suspension devices on one side of each equalizer bar; second vehicle wheels supported respectively by way of second suspension devices on the other side of each equalizer bar; and third vehicle wheels provided respectively on the left and right-hand sides of the vehicle body separately from the equalizer bars, and being supported respectively by way of third suspension devices; a first load applied to the second suspension device is detected; a second load applied to the third suspension device is detected; the angle of inclination of the vehicle body is detected; and a loaded weight is calculated on the basis of the first and second loads, and the angle of inclination.

Detection signals from lever sensor (29), sit-down sensor (30) and vehicle speed sensor (31) are read into a controller (32). A control signal is produced by the controller (32) to switch a directional control valve (20) of a control valve unit (16) instantly from a floating position (c) to a neutral position (a) and to switch another directional control valve (21) from a neutral position (a) to a lowering position (d) when a dump truck (1) is in travel with the directional control valve (20) of the control valve unit (16) is switched in the floating position (c). Whereupon, a hoist cylinder (10) is contracted by a hydraulic pressure force to hold a vessel (3) in a sit-down position on a vehicle body (2), thereby preventing the vessel (3) from shaking movements like floating up while the dump truck (1) is in travel.

The invention provides a horizontally pushing type dumper, which can move loaded cargoes backward as a whole to realize unloading. The horizontally pushing type dumper comprises a flat bottom type carriage; the flat bottom type carriage comprises a front breast board, a left side breast board, a right side breast board, a bottom board, front stand columns and rear stand columns; the carriage is internally provided with a push board which is in parallel to the front breast board; the left side breast board, the right side breast board and the bottom board are provided with longitudinal slideways or slide rails; correspondingly, the push board is provided with slide blocks or slide grooves; the left side breast board, the right side breast board and the bottom board form a movable pair with the push board; the push board can move backward and forward along the carriage under the drive of a push board driving device; when the cargoes are unloaded, the push board moves backward; and after the cargoes are unloaded, the push board moves forward to reset. According to the invention, when the cargoes are unloaded, the horizontally pushing type dumper does not need to lift the carriage and can unload the cargoes in the carriage completely only by moving the push board backward; unloading through tipping the carriage is changed to the unloading through horizontal movement, thereby promoting the cargo capacity and the vehicle stability and meanwhile reducing the probabilities that a vehicle frame suffers permanent deformation, and snap of welded joints happens in the carriage and an auxiliary frame.