Abstract:
An articulated steering load-carrying vehicle (1) with a front portion (2), which over a steering joint (10) is connected to a rear portion (3), wherein the front portion (2) includes a first power engine (12) and at least one forward driven wheel pair (5,5'), and wherein the rear portion (3) includes a load receiving device (6) and at least two driven wheel pairs (7, 7 '; 8, 8 ' ). Of said at least two driven wheel pairs (7, 7'; 8, 8') on the rear portion a second wheel pair (8,8') is steeringly connected to the rear portion. The invention also concerns a system for driving of such a load-carrying vehicle.
Abstract:
A system for controlling a vehicle. The vehicle (1) has a steerable front axle (3) and at least one further steerable axle (6) and the system comprises means for determining the path of a reference lead point (5) at the front of the vehicle (1). There is also means for determining the path of a follow point at the rear of the vehicle, and means for driving the at least one further steerable axle (6) of the vehicle such that the deviation between the path of the lead point (5) of the vehicle and the follow point is within a predetermined range whilst the vehicle (1) is in motion.
Abstract:
In one embodiment, a kingpin assembly (10) has a kingpin (11) mounted so as to be fixed against rotation relative to a trailer (1). A sensor driver (16) is rotatable relative to the kingpin (11) and is engageable with a fifth wheel of a tractor unit so that when the trailer (1) rotates relative to the tractor unit, the sensor driver (16) rotates relative to the kingpin (11). A rotary sensor (26) is drivable by the sensor driver (16) to output a signal corresponding to the rotation of the sensor driver (16) relative to the kingpin (11). The sensor driver (16) is translatable in a direction generally parallel to the central longitudinal axis of the kingpin (11) between an engaging position and a non- engaging position. In this way, if the kingpin (11) is inserted incorrectly into a fifth wheel of a tractor unit, the sensor driver (16) can move along the length of the kingpin (11) to the non-engaging position so as not to engage with the fifth wheel.
Abstract:
A steering trailer or semi-trailer (1) of the type provided with a device (5) for detecting the angle of displacement between a motor-driven towing vehicle (6) which is being steered and the trailer or semi-trailer (1) in order to control the corresponding steering of at least one steering axle (3,4) of the trailer or semi-trailer (1), the axle having opposing steering hub means interconnected with one another and at least one of which is subject to a steering actuator (13), the trailer or semi-trailer (1) comprises, for each steering axle (3,4), a hydraulic control cylinder (25, 26) belonging to the detection device (5) and a hydraulic actuator cylinder (13) belonging to the steering actuator, these cylinders (13, 25, 26) both being dual-acting and having a double chamber (13a, b;23a,b;24a,b) of identical overall working volume, and being interconnected with one another such that the corresponding chambers are in mutual hydraulic connection via a transfer circuit (15) for the fluid pumped from a chamber (23a, b; 24a, b) of the control cylinder (25,26) to a corresponding chamber (13a, b) of the actuator cylinder (13) and vice versa.
Abstract:
A rail wagon frame (20) having a longitudinal axis (203). Leading outboard (204) and inboard (205) pins are provided at a leading end (201) of the frame (20) and trailing outboard (206) and inboard (207) pins are provided at a trailing end (202) of the frame (20). The pins (204, 205, 206 and 207) are all aligned on the longitudinal axis (203). A leading bogey (30) supports the leading end (201) and a trailing bogey (40) supports the trailing end (202) of the frame (20). The leading bogey (30) comprises an outboard and an inboard sub-bogeys (301 and 302) hingedly connected about a first pivot (306) located substantially midway between the outboard (303) and inboard (304) axle groups. The leading bogey (30) is pivotally connected to the leading end (201) of the wagon frame (20), via the leading inboard pin (205), at a third pivot (307) located inboard, with respect to the wagon frame (20), of the first pivot (306). The outboard (301) and inboard (302) sub-bogeys of the leading bogey (30) are pivotally connected to the wagon frame (20), as well as to each other, via the leading outboard pin (204), which defines the first pivot (306).
Abstract:
A multi-axle transport trailer having a plurality of axles includes a suspension comprising air bags associated with each axle, the air bags in communication with an air source, wherein air bags associated with different axles are capable of having different air pressures therein. The trailer further optionally includes a steering system associated with at least one axle, the axle including a tie rod connected between wheels on both ends of the axle, the steering system comprising cylinders configured to articulate the wheels, and a sensing device configured to monitor movement of the tie rod and facilitate actuating the cylinders to turn the wheels.
Abstract:
The invention relates to a heavy-transport vehicle (10) for transporting an elongated object, having a tractor (14), a multi-axis trailer (16) and a carrier (18), supported on the trailer (16) and on the tractor (14), for the elongated object, the trailer (16) and the carrier (18) being rotatable in relation to each other about a vertical axis (52) of the transport vehicle (10). According to the invention the carrier is supported on the tractor (14) via a goose-neck (22), the trailer (16) has at least one rigid axis (42, 44) and at least one steered axis (40), and, in a steered operating mode during the journey, the steered axis (40) of the trailer (16) is capable of being steered in relation to the trailer (16) as a function of rotational movements of the carrier (18) about the vertical axis (52).
Abstract:
The present invention relates to a mechanically steered articulating dolly transport system for transporting large structures such as a drilling mast over the federal highway system. Generally, the invention relates to an articulating dolly system that utilizes a unique mechanical system for steering a first dolly with a path generated by the movement of the load held by the second dolly. More particularly, the invention provides a front dolly steered by a non-rotatable front steering frame, a rear dolly having a pivotally mounted turntable and a pair of steering links connected between the respective sides of the front steering frame and the turntable. The left steering link and the right steering link are located in a first plane. One or both of the turntable and the steering frame being located on a second plane that is not the first plane. Moment forces generated between plane one and plane two elastically deform one or both of the steering frame and the turntable to permit the transport system to make a left-hand or right-hand turn.
Abstract:
Изобретение относится к области транспортного машиностроения. Система управления колесами полуприцепа содержит колесную раму с лонжеронами и траверсами, служащую опорой поворотному механизму, содержащему систему тяг и рычагов, соединенных с возможностью поворота. Поворотный механизм прикреплен с возможностью поворота к колесной раме. Система дополнительно содержит опорно-подъемный механизм, механизм возвращения системы в нейтральное положение и механизм передачи направления поворота (МПНП) колесам полуприцепа. Колесная рама снабжена дополнительной траверсой для крепления поворотного механизма, на которой закреплена ось с центральной ступицей, оснащенной тормозным механизмом. На центральной ступице жестко закреплена рама поворотного механизма, с которой связаны опорно-подъемный механизм и механизм возвращения системы в нейтральное положение. Механизм передачи направления поворота (МПНП) колесам полуприцепа установлен на лонжероне колесной рамы и связан тягой с колесами полуприцепа. Достигается улучшение управляемости колес полуприцепа.