Classifications

• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
  • E01B7/00—Switches; Crossings
  • E01B7/10—Frogs
  • E01B7/12—Fixed frogs made of one part or composite

Definitions

• the invention relates to a grooved rail frog comprising a frog section area formed by intersecting grooves, such as an overflow area, and two construction profiles that run in the longitudinal direction of the frog and are connected to one another with outer link chambers with lining pieces arranged in them, which are non-positively connected to the construction profiles via at least one tensioning element that penetrates them are connected, the frog intersection area comprising an interchangeable insert which is non-positively arranged in a recess.
• Known grooved rail frogs consist of a frog block, on the end faces of which connecting rails are welded. In the block itself, intersecting grooves are worked out to form a wheel overflow area, which usually merge into those of the connecting rails.
• a rail frog is known from EP 0 533 528 B1, in which a slab is used as the starting material, which is slit open from its end faces and then the legs are spread apart.
• the proposed solutions outlined above therefore assume that the grooved rail frog in the area of the intersecting grooves consists of a homogeneous material, with a connection to the connecting rails being made at a greater or lesser distance from the intersection of the grooves.
• a grooved rail frog type which comprises two construction profiles running in the longitudinal direction of the frog, the respective course of which corresponds to half of the frog viewed in the longitudinal direction thereof.
• the construction profiles are then welded in the longitudinal direction in the focal point intersection area.
• a construction in this regard has the advantage that the frog area can be made shorter. This results in a short, compact design, which also permits large frog angles without the driving comfort of a vehicle passing through a corresponding frog being impaired.
• transition area If the transition area is worn out, it can be replaced by cladding. Alternatively, the centerpiece is replaced. For this purpose, it is necessary that the roof covering for a grooved rail heart piece embedded in a street bed must be opened and then closed again after the replacement. This is time and cost consuming.
• a grooved rail frog of the type mentioned at the outset can be found in EP 1 138 830 A2.
• the insert forming in the overflow area is non-positively received between the head areas of the construction profiles running along the core.
• the positive connection is achieved using bolts that run underneath the insert and are supported on lining pieces that are arranged in the outer link chambers of the construction profiles. If the insert is to be exchanged, it is necessary to uncover the centerpiece arranged in a street bed in order to be able to loosen the screw bolts.
• the present invention is based on the problem of developing a grooved rail frog of the type mentioned at the outset in such a way that simple measures make it possible to renew or fix and release the insert without in particular having to open a street bed.
• the recess of sections receiving the insert is limited by the lining pieces arranged in the outer link chambers of the construction profiles and that the insert is fixed relative to the lining pieces.
• the use is preferably limited both in sections by the lining pieces and in sections by the construction profiles, specifically in the bottom area of the insert. In particular, it is limited by the web section of the construction profiles.
• construction profiles are used on the one hand to form the centerpiece, as a result of which the advantages resulting from DE 100 15 522 AI can be achieved.
• the frog area exposed to high wear is designed as an insert and is fixed in particular via the wedge elements in such a way that problem-free replacement is possible, for example after the wear limit values have been reached, without opening the covering of a roadbed in a time-consuming and costly manner.
• the insert is fixed positively and non-positively in the recess delimited by the lining pieces, so that a smooth transition between the insert and the adjacent sections of the construction profiles is ensured.
• the insert has outer surfaces that extend obliquely outwards, a wedge element with a first surface adapted to the course of the outer surface being in contact with each outer surface and the wedge element with an in particular is supported on the lining piece or a section thereof, in particular opposite the second surface extending to the first surface.
• the insert is designed in such a way that it has lateral surfaces running in the longitudinal direction of the insert, which are inclined to the vertical - for example with an inclination between 1: 5 and 1: 1, in particular 1: 6 - about the wedge elements - also called clamping wedges - same tendency to be clamped on opposite sides.
• the inclination of the side or outer surfaces are opposite and form an acute angle with the bottom surface of the insert or its extension.
• wedge elements or clamping wedges to be used are known per se, in connection with the weldless connection of a tongue rail and a connecting rail for grooved rail switches, as can be found in DE 42 44 010 AI, to the disclosure of which reference is expressly made.
• the chucks In order to stabilize the core and to widen it, the chucks are provided, which contain the required form elements for tensioning the wedge elements and are screwed to the construction profiles with high strength.
• the wedge element has a trapezoidal geometry in section, in particular an unequal leg trapezoidal geometry with a larger base leg running on the upper side.
• the screw element that can be tensioned relative to the chuck.
• the screw element can be a hammer head screw or engage in a T-shaped sliding block that extends in a T-groove that runs in the chuck and runs below the wedge element.
• the lining piece facing away from the insert has a web-shaped section which extends approximately to the plane spanned by the driving surface of the heart piece, the space between the web-shaped section and the insert being covered.
• the intermediate space can be covered by a covering element such as sheet metal, which extends above the wedge element and on the outer surface side, preferably in the plane spanned by the running surface.
• the wedge element is sunk, covered with a cover element and thus protected against road traffic and its stress. Furthermore, to protect against corrosive environmental pollution, a seal can run between the cover element and, on the one hand, the web-shaped section of the lining piece and, on the other hand, the insert.
• construction profiles extend parallel or approximately parallel to one another in the area of the insert, they diverge to the required extent at a distance from the frog intersection area, the construction profiles then being supported against one another via intermediate elements such as wedge supports and being screwed together with high strength using second tensioning elements such as screw bolts.
• the lining pieces which are to be referred to as support rails, are positively inserted into the outer link chambers of the construction profiles, which can be thick web rails Dl 80/105, for example, and are bolted to the construction profiles with high strength and according to schedule.
• 1 is a plan view of a grooved rail frog, 2 shows a section along the line AA in FIG. 1,
• Fig. 4 is a section along the line C-C in Fig. 1 and
• a grooved rail frog 10 is shown in principle, in which intersecting grooves 12, 14 run in a known manner.
• the frog intersection area to be referred to as the wheel overflow area, in which the grooves 12, 14 intersect, is provided with the reference number 16.
• the grooved rail frog 10 consists of two construction profiles 18, 20 which can be designed as a full-head profile in the initial state.
• construction profiles for example, thick web rails such as Dl 80/105 or square profiles come into question, without this restricting the teaching according to the invention.
• the construction profiles have tab chambers 22, 24 at least on the outside.
• the construction profiles 18, 20 are now bent and aligned with one another in such a way that they correspond to the shape of the finished grooved rail frog 10 which is divided in its longitudinal axis.
• the construction profiles 18, 20 run parallel to one another, as is to be indicated by lines 26, 28.
• chuck pieces 30, 32 broadening the frog area in particular positively, are inserted in the outer link chambers 22, 24 and are screwed to the construction profiles 18, 20 with high rigidity and with planned bracing.
• a bolt 34 passes through the chuck pieces 30, 32 and the construction profiles 18, 20 in order to screw them together in a high-strength manner with a planned preload.
• the grooves 18, 20 intersect in an insert 36, which is arranged in a non-positive and form-fitting manner in a recess, which is delimited by the construction profiles 18, 20 and the lining pieces 30, 32, as can be seen from FIGS Figures results.
• the insert 36 can be made of wear-resistant or highly wear-resistant material without the construction profiles 18, 20 having to consist of the same material.
• the insert 36 also runs above the bolt 34.
• the recess is delimited laterally by the chuck pieces 30, 32 and on the underside or bottom side by the construction profiles 28 or webs thereof.
• wedge elements 38, 40 In order to ensure a non-positive connection between the insert 36 and the chucks 30, 32, wedge elements 38, 40, to be referred to as clamping wedges, are provided, which are located on the one hand on outer surfaces 42, 44 of the insert 36 and on the other hand on inner surfaces 46, 48 of the chucks 30, Support 32.
• the outer surfaces 42, 44 are inclined and, starting from the insert 36, form an acute angle with the bottom surface 50 thereof.
• the inclination of the outer surface 42, 44 is approximately 1: 6.
• a surface 52, 54 of the wedge element 38, 40 adjoins the respective outer surface 42, 44.
• Opposite surface 56, 58 which is located on the Surface 46, 48 of the chuck 30, 32 supports, in contrast, preferably runs vertically.
• Each wedge element 38, 40 thus has a trapezoidal geometry in section, the larger base leg 60, 62 running on the top side, that is to say in the area of the colored area.
• Each wedge element 38, 40 can be penetrated by a screw such as a hexagon screw 64, 66 and can engage in a T-shaped sliding block 68, 70, which in turn runs in a T-shaped groove 72, 74 which is in the chuck 30, 32 below the wedge element 38, 40 is embedded.
• a T-groove 72, 74 is provided for each wedge element 38, 40, the dimension, in particular length, of which is matched to the distance between the screws 64, 66 of the clamping wedge 38, 40.
• An opening is made in the center of the respective T-groove 72, 74. prepared to insert the sliding block 68, 70.
• a hammer head screw or an equivalent element can also be used.
• the wedge elements 38, 40 are recessed in the chuck pieces 30, 32.
• the wedge element 38, 40 can be covered by a cover 76, 78, such as a cover plate, which extends between the insert 36 and an outer web-shaped section 80, 82 of the chuck 30, 32.
• the web-shaped section 80, 82 extending in the longitudinal direction of the frog 10 preferably runs with its upper side 84, 86 in a plane that is spanned by the driving surface of the frog.
• cover elements or sheets 76, 78 taper towards the bottom, that is to say conically, a different geometry can also be selected.
• the cover plates 76, 78 are sealed off from the space 88, 90 running between the insert 36 and the web-shaped sections 80, 82 by means of a rubber seal 92, 94, for example.
• the construction profiles 18, 20 are supported by spacing elements such as wedge supports 96 and then screwed high-strength by means of further clamping elements such as bolts 98.
• this area which can correspond, for example, to an expansion dimension of 160 mm, the space between the construction profiles 18, 20 is covered by a cover plate such as tear plate 100.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Mutual Connection Of Rods And Tubes (AREA)
• Leg Units, Guards, And Driving Tracks Of Cranes (AREA)
• Treatment Of Steel In Its Molten State (AREA)
• Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
• Materials For Medical Uses (AREA)
• Golf Clubs (AREA)
• Body Structure For Vehicles (AREA)
• Joining Of Building Structures In Genera (AREA)
• Electrotherapy Devices (AREA)
• Sampling And Sample Adjustment (AREA)
• External Artificial Organs (AREA)
• Massaging Devices (AREA)

Applications Claiming Priority (3)

Publications (2)

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• 2003
  • 2003-03-12 DE DE2003111113 patent/DE10311113A1/de not_active Withdrawn
• 2004
  • 2004-03-10 US US10/542,858 patent/US7309050B2/en active Active
  • 2004-03-10 EP EP04718930A patent/EP1601835B1/fr not_active Expired - Lifetime
  • 2004-03-10 AT AT04718930T patent/ATE370274T1/de active
  • 2004-03-10 DE DE502004004642T patent/DE502004004642D1/de not_active Expired - Lifetime
  • 2004-03-10 WO PCT/EP2004/002447 patent/WO2004081286A1/fr active IP Right Grant
  • 2004-03-10 DK DK04718930T patent/DK1601835T3/da active
• 2006
  • 2006-06-07 HK HK06106535A patent/HK1089489A1/xx not_active IP Right Cessation

Non-Patent Citations (1)

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