Classifications

• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
  • E01B9/00—Fastening rails on sleepers, or the like
  • E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
  • E01B9/685—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape
  • E01B9/686—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape with textured surface
• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
  • E01B9/00—Fastening rails on sleepers, or the like
  • E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
  • E01B9/685—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape

Definitions

• the invention relates to a resilient rail fastening with an elastic intermediate layer and a tool for producing the elastic intermediate layer.
• Modern rail fastenings on sleepers of a railway track are generally equipped with intermediate layers between the rail foot and the sleeper in order to ensure an elastic train run. It does not matter whether concrete sleepers, e.g. the usual size B 70 or wooden or steel sleepers, as a trough sleeper or Y
• Threshold with two supports per threshold for each rail.
• the rails are also stretched elastically. by spring elements which act on the rail foot and are in turn anchored by screws or eyelets on the support, the sleepers or also a bridge substructure or other solid substrates.
• spring elements which act on the rail foot and are in turn anchored by screws or eyelets on the support, the sleepers or also a bridge substructure or other solid substrates.
• Such elastic intermediate layers are also known for height-adjustable rail fastenings, in particular to be used in a ballastless superstructure (DE-A 26 00416), which at the same time can have an electrical insulating effect, provided that the bracing on the support itself is insulated from the rail. Otherwise, the bracing must be provided with insulation separately.
• the lateral rail guidance is generally guaranteed by angle guide plates, which in turn can consist of plastic or steel.
• the invention is therefore based on the problem of proposing a resilient rail fastening with an elastic intermediate layer, in which the environmental and stress-related, destructive conditions can be largely compensated for, the type of elastic intermediate layer being suitable for the special applications adaptable and inexpensive to manufacture.
• Such intermediate layers can be used in the conventional K superstructure with a spring washer; However, their full effect can only be achieved with modern resilient rail fastenings, e.g. the so-called W superstructure, with a w-shaped steel spring, which is fixed by a screw on the support, the sleepers, and thus tensions the rail foot.
• the new intermediate layer prevents contamination of the rail support or the penetration of water into the gaps between the rails and the threshold or the solid base.
• Figure 1 is a resilient rail fastening of the W superstructure with an elastic intermediate layer in partial section.
• FIG. 2 shows a top view according to view A in FIG. 1 of the elastic intermediate layer; 3 shows a section BB according to FIG. 2 through an elastic intermediate layer;
• FIG. 4 shows a second embodiment of an intermediate layer according to view A in FIG. 1.
• a rail 1 of size UIC 60 is shown with an inclination 1:40 to the middle of the track (to the left) at its fastening point.
• the foot 2 of the rail 1 is tensioned by angle guide plates 5 in the lateral direction and from above by a resilient rail fastening 4.
• An elastic intermediate layer 8 is arranged between the bearing surface 21 of the concrete sleeper 6 and the rail foot sole 3, the lateral ribs 7, 9 of which are held by angle guide pieces 5.
• the bottom view (arrow A) of the elastic intermediate layer is shown in Fig. 2.
• the upper side of the elastic intermediate layer, not shown, is flat and therefore has full contact with the rail foot sole 3.
• the elastic intermediate layer 8 has within a largely closed edge strip, in the longitudinal direction of the rail with the parts 12, 13 and the transverse direction of the rail with the parts 10, 11 enclose a recess surface 17.
• 42 compression points 18, which present themselves as elevations within the depression surface 17, are arranged within the depression surface 17.
• a thermoplastic, uncrosslinked elastomer was used as the material for the intermediate layer.
• the spring index achieved with a dimension of the intermediate layer of nominally 165 x 148 mm and a total thickness of 7 mm and a recess of 5
• the intermediate layer 25 made of PE copolyers otherwise also has continuous edge strips 28, 29 for supporting the rail foot edges and reinforced, widened edge strips 26, 27 for reducing the specific edge pressure of the intermediate layer.
• the wrap-around strips 24 are reduced here to a minimum for fixing the intermediate layer on the threshold, for example to largely avoid an accumulation of material which is undesirable in terms of production technology.
• the compression points 30, 34 have a head surface 31, 37 which is reduced relative to their base surface 33, 35, so that an oblique flank 32, 36 results.
• the head surface 31, 37 When the head surface 31, 37 is loaded, it increases in accordance with the flank angle and the compression path or the recess depth of the rail, not shown. The extent of the depression, given the load and the nominal total compression area, can therefore also be set by the flank angle or thus influencing the spring stiffness. With the size of the head surfaces 31, 37, the number and distribution of the head surfaces over the intermediate layer 25, there are further parameters for setting the rigidity of the rail fastening, the spring characteristic curve being relatively linear when using tapered compression points and progressive at pyramid-shaped points.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Railway Tracks (AREA)
• Springs (AREA)
• Window Of Vehicle (AREA)
• Dowels (AREA)
• Road Paving Structures (AREA)
• Power-Operated Mechanisms For Wings (AREA)
• Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
• Outside Dividers And Delivering Mechanisms For Harvesters (AREA)
• Supports For Pipes And Cables (AREA)
• Details Of Indoor Wiring (AREA)
• Golf Clubs (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=6487048

Family Applications (1)

Country Status (10)

Families Citing this family (16)

Family Cites Families (4)

• 1993
  • 1993-04-28 DE DE4314578A patent/DE4314578A1/de not_active Withdrawn
• 1994
  • 1994-04-28 DE DE9421666U patent/DE9421666U1/de not_active Expired - Lifetime
  • 1994-04-28 EP EP94914316A patent/EP0698147B1/fr not_active Expired - Lifetime
  • 1994-04-28 DE DE4492615T patent/DE4492615D2/de not_active Ceased
  • 1994-04-28 ES ES94914316T patent/ES2109690T3/es not_active Expired - Lifetime
  • 1994-04-28 PL PL94311311A patent/PL311311A1/xx unknown
  • 1994-04-28 AT AT94914316T patent/ATE157417T1/de active
  • 1994-04-28 AU AU66758/94A patent/AU6675894A/en not_active Abandoned
  • 1994-04-28 CN CN94191942A patent/CN1072300C/zh not_active Expired - Fee Related
  • 1994-04-28 WO PCT/DE1994/000496 patent/WO1994025675A2/fr active IP Right Grant
  • 1994-04-28 CZ CZ19952708A patent/CZ286803B6/cs not_active IP Right Cessation
  • 1994-04-28 DE DE59403881T patent/DE59403881D1/de not_active Expired - Lifetime
  • 1994-04-28 PL PL94109843U patent/PL58200Y1/xx unknown
• 1997
  • 1997-11-26 GR GR970403158T patent/GR3025509T3/el unknown

Non-Patent Citations (1)

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