Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
  • B61G9/00—Draw-gear
  • B61G9/04—Draw-gear combined with buffing appliances
  • B61G9/06—Draw-gear combined with buffing appliances with rubber springs
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
  • B61G9/00—Draw-gear
  • B61G9/04—Draw-gear combined with buffing appliances
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
  • B61G9/00—Draw-gear
  • B61G9/20—Details; Accessories
  • B61G9/22—Supporting framework, e.g. cradles; Spring housings
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
  • B61G9/00—Draw-gear
  • B61G9/12—Continuous draw-gear combined with buffing appliances, e.g. incorporated in a centre sill

Definitions

• the invention relates to a device with a pulling and pushing device of a coupling system for a rail vehicle according to the preamble of claim 1.
• a pressure element adjustable in the axial direction is mounted in the connecting head, which rests on the rear side against the spring element supporting the connecting head at the front and forms a contact surface at the front, which is in contact with an end face of this connecting element which can be linked to the connecting head can be brought into contact at least when pivoting the connecting member.
• This achieves, in particular, a play or a play limitation between the connecting member, to which a coupling head is preferably attached, the connecting head, and the spring elements.
• the connecting head and the housing structure are formed with corresponding sliding guides, by means of which the connecting head with the pull rod and the pressure means adjustable therein are guided longitudinally in the housing structure in the axial direction.
• the invention is based on the object of improving the known device in such a way that a more stable mounting is achieved in the case of the pressing means displaceably mounted in a guide for pressing against a rear end face in the case of the connecting member which can be deflected on the connecting head, so that in this pressing means there are practically no angular adjustments of its abutment surface perpendicular to the axial direction in either the transverse or vertical direction.
• a pressure element that forms a contact surface on the front side, which can be brought into contact with the end face of a connecting link that can be pivoted on the connecting head, at least during pivoting of the connecting link.
• This pressure element is attached to the front of the guide frame, and the joint head is held in a recess in the guide frame, longitudinally guided to a limited extent in the axial direction.
• the joint head can be inserted with its base into the U-shaped recess of the guide frame and the pressing means is fastened to the front of the guide frame at this recess, so that the joint head is mounted in this recess of the guide frame so that it can be moved to a limited extent in the axial direction.
• this joint head consists of a rear base and an upper and lower fork wall, each provided with lateral sliding surfaces that are in sliding contact with the inner guide surfaces in the U-shaped recess of the guide frame.
• the plate-shaped pressure element is dimensioned with a height such that it can be inserted between the upper and lower fork walls of the joint head and fastened to the outer, vertically extending end faces of the guide frame.
• a further advantage of the invention is that, in the unloaded initial state, a gap is also provided between the pressure element and the joint head, allowing the pressure element and, with it, the guide frame to be pressed against the spring elements relative to the joint head. This ensures proper functioning of the pressure element in the connecting head.
• a plate-shaped or other-shaped support element is guided in a guideway within the housing structure transversely to its longitudinal extension in the axial direction.
• a retaining ring which abuts the last spring element, is slidably guided on the pull rod.
• the retaining ring either abuts the housing structure at the rear or is driven by the pull rod via a stop in the direction of tensile load.
• Fig. 1 to Fig. 3 show a device 10 with a holder 11 and with a pushing and pulling device 15 of a coupling system, particularly for a rail vehicle. It is very advantageously suited for freight wagons, in which vehicle recesses 12' are each provided in a vehicle body 12 as a holder 11, into which a device 10 can be fastened. Of course, it can also be installed in passenger cars, locomotives, or other types of wagons.
• the device 10 is provided with a housing structure 13, a support element 17 held by the latter, a pull rod 14 displaceably mounted by the latter in the axial direction A, provided at the front with a connecting head 20, and on both sides of the support element 17 with a plurality of spring elements 16, 16' arranged one after the other on the pull rod 14.
• the support element 17 is arranged approximately in the middle of the Housing structure 13. However, depending on the number of spring elements 16, 16' or the length of the housing structure 13, it could be placed in the front or rear part of the latter.
• the preloaded spring elements 16, 16' serve to dampen the tensile and compressive forces of the pulling and pushing device that arise during operation of the rail vehicle. For example, nine can be provided at the front and four at the rear. However, a different number can be selected depending on the force requirements. Both these spring elements 16 acting on tensile forces and a stop 19 attached to the end of the drawbar 14 with a fastening means 18, as well as the spring elements 16, 16' acting on compressive forces, are arranged in a row within the housing structure 13, which enables the spring elements 16 to be compressed with a defined tensile or compressive force. In principle, only one spring element could be arranged in front of and behind the support element 17.
• This connecting head 20, formed on the front side of the device 10, is designed with a linkage consisting of a joint head 22 with forked walls 23, 24 and a pivot pin 26 extending transversely to the axial direction A, to which, for example, a connecting link 29 shown with a coupling head (not shown in detail) can be linked.
• a coupling head could also be held directly on the pivot pin 26.
• This connecting link 29 is tubular and has a bushing 29' on the rear side, through whose bore 28 this pivot pin 26 removably projects.
• a pressure means 40 adjustable in the axial direction A is mounted, as can be seen in particular from Fig. 2 which bears against the rear of the spring element 16' supporting the front of the connecting head 20 and forms an abutment surface 41 on the front, which can be brought into contact with an end face 38 of this connecting member 29, which can be pivoted on the connecting head 20, at least when the latter is pivoted.
• the connecting member 29 can, for example, be pivoted out to approximately 17° to one side or the other in relation to the axial direction A.
• the connecting head 20 comprises the joint head 22 and at least one guide frame 30 mounted in the housing structure 13 with corresponding sliding guides 31, 32, wherein the joint head 22 is longitudinally guided in the guide frame 30 in the axial direction A.
• the joint head 22 with the guide frame 30 can be guided in the housing structure 13 over a greater stroke length than in the known device.
• the joint head 22 with its base 25 connecting the fork walls 23, 24 can be inserted into the U-shaped recess 34 of the guide frame 30 and the pressing means 40 can be fastened to the front of the guide frame 30, so that the joint head 22 is mounted in this recess 34 in the guide frame 30 so that it can be moved to a limited extent in the axial direction A.
• the joint head 22 is provided with lateral sliding surfaces 22' on its rear base 25 and on the fork walls 23, 24, which are arranged on inner guide surfaces 34' in the U-shaped recess 34 of the guide frame 30 are in sliding contact.
• an axle shaft 33 is arranged at the rear of the base 25 of the joint head 22, which extends through a central opening 33' in the guide frame 30 and is connected to the pull rod 14, for example by friction welding.
• the spring elements 16' are slipped onto this axle shaft 33.
• the joint head 22 is accordingly guided, on the one hand, in the guide frame 30 and, additionally, by the pull rod 14 connected to it from the support element 17 in the housing structure 13.
• the axle shaft 33 could also directly form the pull rod 14 in one piece and accordingly protrude through the housing structure 13.
• the plate-shaped pressing means 40 is dimensioned with a height such that it can be inserted between the upper and lower fork walls 23, 24 of the joint head 22 and fastened to the front, vertically extending end faces 35 of parallel legs 36 of the guide frame 30 by means of screws 37 or the like.
• the guide frame 30 extends above or below the attached pressing means 40 so that the lateral sliding surfaces 22' of the joint head 22 are in sliding contact with these inner guide surfaces 34' in the U-shaped recess 34.
• the guide frame 30 is composed of these two legs 36, a transverse wall 30' with the central opening 33' for the axle shaft 33, and a frame structure 54, with these sliding guides 31 preferably extending approximately over the entire length of the rectangular or otherwise shaped guide frame 30.
• This guide frame could be designed differently within the scope of the invention. For example, instead of four sliding guides 31, only two or three could be provided. In cross-section, it could be round or shaped differently instead of rectangular.
• the abutting surface 41 of the pressing means 40 and this end face 38 of the connecting link 29 are approximately flat and, in the unloaded initial state, are preferably spaced apart and aligned approximately parallel to one another. Upon deflection of the connecting link 29, this end face 38 can be brought into rolling contact with the abutting surface 41 of the pressing means 40. This end face 38 of the connecting link 29 abuts against the abutting surface 41 of the pressing means 40, whereby the latter, together with the guide frame 30, is pressed against the spring elements 16. The spring elements 16, in turn, generate a counterforce and cause this connecting link 29 to always be pivoted back into the coaxial position with the axial direction A.
• this compressive force can be transmitted from the connecting link 29 to the pressing means 40 and the guide frame 30, and from there to the spring elements 16, in addition to a tensile or impact force.
• This compressive force connects the pressing means 40 with the Guide frame 30 is adjusted relative to the joint head 22 in the direction against the spring elements 16.
• a distance a is provided between the pressing means 40 and the joint head 22, which allows the pressing means and with it the guide frame to be pressed against the spring elements relative to the joint head.
• the base 25, with its wall thickness, is thinner than the recess 34, viewed in the axial direction.
• the housing structure 13 is assigned, at least in the front area, a frame shell 44 running all around, by means of which both the guide frame 30 and the joint head 22 are guided by an almost play-free external sliding guide.
• the housing structure 13 can be fixed in the vehicle body 11 of the rail vehicle by fastening means, wherein it can be clamped between at least one jaw arranged in the vehicle body 11, which engages the front end of the housing structure 13, and wedges 42 at the rear in the vehicle recess 12' of the vehicle body 11.
• the respective wedges 42 are each arranged in a longitudinally adjustable manner by at least one fastening unit 43 arranged parallel in its longitudinal direction, such that the wedge 42 is fixed in the clamping position after the housing structure 13 has been clamped.
• the fastening unit 43 has at least an adjustment means connected to the wedge 42 in the housing structure 13, preferably a screw 48, by means of which the wedge 42 can be adjusted and clamped between the housing structure 13 and the vehicle body 11, and in the clamped position, the adjustment means can be fixed by lock nuts 46 or the like.
• each of the two wedges 42 is assigned such an adjustment means and they are fastened individually. This provides a further advantage in that these wedges 42 remain at the set fixed height when the distance between the housing structure 13 and the vehicle body 11 changes, usually within a tenth of a millimeter range.
• Positioning means 47 are also indicated on the transverse rib 48 for assembly purposes of the device.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Body Structure For Vehicles (AREA)
• Pivots And Pivotal Connections (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=93923081

Family Applications (1)

Country Status (2)

Cited By (1)

Citations (5)

• 2023
  • 2023-12-19 CH CH001426/2023A patent/CH721424A2/de unknown
• 2024
  • 2024-12-12 EP EP24219329.0A patent/EP4588751A1/fr active Pending

Patent Citations (5)

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