JP6038118B2 - Maintenance vehicle - Google Patents

Description

  The present invention is a vehicle frame that extends in the longitudinal direction of the vehicle, and includes a rail traveling device capable of traveling on a rail of a track at each frame end, and the both rail traveling devices arranged at intervals from each other. The present invention relates to a maintenance vehicle provided with a vehicle frame, in which a work space opened toward the track is provided in a region located therebetween.

  A vehicle of this type is known from EP 1789299. The vehicle has a working space below a vehicle frame that is bent upwards, and the working space is limited by side walls that are adjustable in the lateral direction of the track on both longitudinal sides of the vehicle. Alternatively, it is protected and has a slidable lifting and working device for performing a variety of track maintenance tasks. When replacing the mating rail, a rail clamping device is additionally used as is known in the art in order to maintain the longitudinal tension in the cut rail.

  According to Japanese Patent No. 2555508, an orbitable device for correcting the butt joint interval of rails is known. For this purpose, two rail clamp devices are suspended in the machine frame approximately in the middle between the rail travel devices, and these rail clamp devices are connected to each other and to the machine frame in the longitudinal direction by the drive. It is relatively adjustable.

  The object of the present invention is to provide a vehicle of the type mentioned at the beginning which can be used optimally for rail replacement.

  According to the present invention, according to the present invention, a clamp device formed to frictionally connect the vehicle frame to the rail is disposed at each frame end portion, and at least one of both clamp devices. One is solved by a vehicle of the type described at the beginning, characterized in that it can be adjusted relative to the vehicle frame in the longitudinal direction of the vehicle by means of a drive device.

  Depending on the vehicle with such features, the present invention preferably eliminates the relatively laborious steps of using separate rail fastening devices, so that the replacement of the mating rail is quick and easy. Can be done. Longitudinal tension in the rail that must be maintained after separation of the rail portion can be easily received by a stable vehicle frame that guides the force transmitted through the clamping device. Based on the drive for the longitudinal adjustment of the clamping device, the necessary tensile or compressive stress can be ergonomically and reliably brought to the rail.

  A further advantage according to the invention is that the longitudinally clamped and fixed track is additionally and simultaneously loaded in the vertical direction via the rail travel device by the weight of the maintenance vehicle, which makes it more stable, in particular laterally. The position is also maintained. This has been found to be extremely easy, especially when working on the trajectory curve, since in this case the forces acting in the horizontal direction are also taken into account or compensated for.

  Further advantages of the invention are described in the dependent claims and the description on the basis of the drawings.

  In the following, embodiments of the invention will be described in detail with reference to the drawings.

It is a side view of the maintenance vehicle formed by this invention. It is a figure which shows the detail of a clamp apparatus. It is a figure which shows the detail of a clamp apparatus. It is a figure which shows another Example of this invention.

  In this case, components having the same function are given the same reference numerals.

  The vehicle 1 schematically shown in FIG. 1 works for maintenance work on a track 3 having rails 2 and can travel on the track 3 by two rail travel devices 4. These two rail travel devices 4 are arranged at a distance from each other in the longitudinal direction 5 of the vehicle, and are arranged at the frame ends 6 and 7 of the vehicle frame 8 respectively. A work space 10 is provided below the vehicle frame 8 in a region 9 located between the two rail travel devices 4. The work space 10 is formed by being opened in the direction toward the track 3, and the vehicle longitudinal direction. Limited by two side walls 11 extending in direction 5. The side wall 11 can be adjusted in a known manner by the drive in the transverse direction of the track so that the working space 10 can be enlarged as required.

  Further, one clamping device 13 is arranged on the vehicle frame 8 at each of the frame end portions 6 and 7. It is particularly preferred if two clamping devices 13 are arranged at each frame end 6, 7 and spaced apart from each other in the lateral direction. As more clearly shown in FIG. 2, the clamping device 13 comprises a height-adjustable rail catch 14, which is frictionally applied by a (preferably hydraulic) clamping drive 15. Can be coupled to the rail head 16 of the rail 2. Furthermore, at least one of the clamp devices 13 is formed to be adjustable relative to the vehicle frame 8 in the vehicle longitudinal direction 5 by another drive device 17. For this purpose, a longitudinal guide 18 is provided in the vehicle frame 8, and a holding body 19 formed in a bending and torsional rigidity is supported in the longitudinal guide 18. The rail catch 14 is assembled so as to be adjustable in height, and the holding body 19 is connected to a driving device 17 for adjusting the longitudinal direction formed as a hydraulic cylinder 20.

  Alternatively, the clamping device 13 or the rail catch 14 may be arranged on the rail traveling device 4 as shown in FIG. 3 (or the alternate long and short dash line in FIG. 1) without being arranged directly on the vehicle frame 8. In this case, the rail travel device 4 is preferably supported on the vehicle frame 8 so as to be adjustable in the longitudinal direction 5 of the vehicle, and is connected to a driving device 17 for adjusting in the longitudinal direction in the longitudinal guide 18.

  In another configuration of the invention, shown very schematically in FIG. 4, the vehicle frame 8 consists of laterally adjustable side walls 11 that limit the working space 10 in the region between the two rail travel devices 4. The side walls 11 are thus particularly solid and robust. The clamping device 13 is connected to the side wall 11 so that its height can be adjusted in the lower region of the side wall 11, and at the same time relative to the side wall 11 (ie to the vehicle frame 8) by the drive device 17 in the longitudinal direction 5 of the vehicle. It is formed to be adjustable. Preferably, the two clamping devices 13 are arranged at a maximum distance from each other so that the fitting rail having the maximum length between the two rail catches 14 can be removed when working.

  During the operation of the vehicle 1, the positions of the rails 2 are fixed by the both clamp devices 13 before one fitting rail portion is separated. In this case, the drive 17 can maintain the required rail stress (tensile or compressive) or a desired tension can be applied to the rail 2 depending on the ambient temperature or other important factors.

Claims (3)

Rail traveling device (4), which is a vehicle frame (8) extending in the longitudinal direction (5) of the vehicle and capable of traveling on the rail (2) of the track (3) at each frame end (6, 7). A work space (10) opened toward the track (3) is provided in a region (9) located between the two rail travel devices (4) arranged at a distance from each other. In the maintenance vehicle (1) for rail replacement comprising the vehicle frame (8),
The vehicle frame (8) is coupled to the rails (2) of the track (3) on which the rail traveling device (4) can travel by frictional force at the frame ends (6, 7), respectively. A clamping device (13) formed for this purpose is arranged, and at least one of the clamping devices (13) is driven by the drive device (17) in the vehicle longitudinal direction (5) with respect to the vehicle frame (8). A maintenance vehicle characterized by being relatively adjustable and capable of maintaining the longitudinal tension of the rail (2) to be maintained when the fitting rail is replaced. .   2. The maintenance vehicle according to claim 1, wherein the drive device (17) is formed as a hydraulic cylinder (20).   The clamp device (13) is coupled to the rail travel device (4), and the rail travel device (4) is coupled to the vehicle frame (8) via a drive device (17) so as to be adjustable in the longitudinal direction. The maintenance vehicle according to claim 1 or 2.

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