摘要:
A rail-lifting and ballast-spreading apparatus that may be employed to rehabilitate damaged tracks or aid rough in of new tracks, is described. The apparatus includes a track-lifting unit at a forward end thereof that includes an arm that is pivotable to extend forwardly and over a section of track in need of repair or ballast replenishment. Rail clamps are provided on a distal end of the arm that engage and travel along the rails as the apparatus moves forward. A conveyor provides a stream of ballast across the width of the tracks while the tracks are lifted and as the apparatus moves forward onto the now repaired tracks. A surge bin is provided to increase a rate of distribution of the ballast material by the conveyor over that available from the ballast-delivery consist.
摘要:
The invention relates to a method for treatment of a ballast track by means of track maintenance machine which comprises a lifting unit, having gripping rollers for gripping a track grid formed of rails and sleepers and lifting drives for lifting the track grid, and a measuring system for comparing to a target position of the track, wherein the lifting unit is set in vibration by means of a vibration exciter and the vibration is transmitted to the track grid, wherein the lifting unit is controlled by means of a control device in such a way that, during a lifting operation, the lifting unit is set in vibration, and the track grid is first lifted to above the target position and subsequently lowered to the target position. By means of the method according to the invention it is possible to carry out in a simple manner a lifting of the track grid with simultaneous stabilization of the track position.
摘要:
The invention relates to a method for the automatic correction of the position of individual faults (H(n)) of a track formed by rails (16) and sleepers (9) with a track tamping machine (2). After the left and right rails have been surveyed independently by means of an inertial measuring unit (11), the length and position of the individual fault (TAMP, S, E) to be corrected is determined by taking into account a limit value of the individual faults (FLIM) and a maximum extension (smax) in the longitudinal direction of the track (s). The tamping units (7) of the tamping machine (s) are positioned exactly at the starting point (S) and end the tamping at the end point (E) of the determined track correction section (TAMP). Both track sections (FLI,FRE) are tamped and corrected simultaneously.
摘要:
The present disclosure generally relates to a railroad chassis vehicle having independently operable workheads for carrying out rail maintenance operations on non-uniform sections of railroad tracks. Related methods of operation of the railroad chassis and associated maintenance of ballast beds underlying railroad tracks are also described.
摘要:
The present invention is directed to a combination roof top solar installation tool, and more particularly, to a tool for measuring, securing, and supporting solar installation equipment to allow for quick, safe, consistent, and efficient installations. The tool may include a first housing, a second housing, and third housing that fit telescopically together and are secured through a clip locking mechanism that extends the housings when released via a clip and roller system. The tool has ruling etched along the top of the housings, a level, and also has a series of ratchet heads for tightening and loosening tools on a roof. The invention may include a series of seam clamp holes along the surface of the housings, which receive a seam clamp. The invention may also have an elongating device secured onto one of the housings, which is used for measuring distances beyond the length of the installation tool.
摘要:
The invention refers to a machine and a method used to level, align and stabilise the track and compact the ballast bed, producing controlled lifting, so that the load used in the settlement of the rail in its theoretical position falls within the established range, working in an uninterrupted manner. The machine is constituted by two bogies with traction capacity, and front, back and centre control cabins and a rear and frontal measuring tensioner trolleys. The machine has an additional lifting unit whose relative movement with the rest of the machine in controlled by total longitudinal cylinder. The alignment cylinders generate a transversal movement to cause track alignment. Behind this unit according to the direction of work a stabilising unit is situated which consists of two stabilising trolleys. The ground-penetrating radar is situated at the machine front.
摘要:
A mobile machine for rehabilitating a track has a machine frame extending in a longitudinal direction and supported by undercarriages for mobility on the track in an operating direction, the machine frame being composed of a leading frame part with respect to the operating direction and a trailing frame part connected to the leading frame part by an articulation, with at least one working unit being mounted on the machine frame for adjustment relative thereto. A reference system for controlling the position of the working unit is arranged on the leading frame part and consists of a reference line extending in the longitudinal direction between two of said undercarriages, a measuring axle designed to roll on the track, and a measuring device connected to the measuring axle for detecting a movement, transversely to the longitudinal direction, of the measuring axle relative to the reference line. An angle-measuring device is provided for detecting an actual frame angle enclosed by the leading and the trailing frame part.
摘要:
A mobile working machine for treatment of a ballast bed or subgrade for a ack comprised of rails fastened to ties includes a machine frame which is defined by a longitudinal axis and supported by undercarriages for movement in an operating direction along a track, and a track lifting unit which is vertically adjustably mounted to the machine frame between two undercarriages for lifting the track. The track lifting unit includes a load-bearing member which extends perpendicular to the longitudinal axis of the machine frame and has a length exceeding a tie length. The load-bearing member forms with its drives a structural unit, which encircles the track in a direction transversely to the machine frame during operation and is solely supported by the machine frame, and has a rolling element which is rotatable about an axis transverse to the longitudinal axis of the machine frame for providing a support for the ties of the track.
摘要:
A rail puller for attachment to the end of a rail comprising a top plate having side plates extending downwardly therefrom in a spaced-apart relationship. The bottom surface of the top plate is provided with a centrally disposed guide slot formed therein adapted to receive the tapered end of a wedge. An elongated rod is secured to the inside surface of each of the side plates near the lower end thereof. The puller is installed on a rail by slipping the same over the end of the rail. A wedge is then inserted into the guide slot of the top plate and is driven thereinto to force the elongated rods upwardly into frictional engagement with the underside of the head of the rail. A lifting bracket is provided on the top surface of the top plate and chain hooks are mounted on the exterior surfaces of the side plates to facilitate the connection of the puller to either a hoisting device, a Hy-Railer or the like.
摘要:
An auxiliary railroad track lifting assembly for assisting conventional lifting grippers of a railroad track construction machine, especially a tamper, in lifting a switchgear unit includes a lifting device carried by an arm articulated, at its end remote from the lifting device, on a carriage movable along a rail fastened to the flank of the machine. The assembly permits displacement of the construction machine between at least two successive tamping position in the longitudinal direction of the track with the auxiliary assembly remaining stationary.