CZ2008467A3 - Block-type tramway rail half switch - Google Patents

Abstract

The block tram track pulley consists of a block body (4) shaped in the desired curvature geometry and with it one unit of permanently joined construction rails (5) with a rail groove (6) continuously passing from the construction rails (5) over the block body (4) . A recess is formed on the block (7) of the block body (4) and a tongue (9) is mounted on the sliding surface (8) provided on the block body (4). The tongue support (10) is also provided on the body of the block (4). The method of producing a block tramway pulley consists in that the prism of the rail quality material and the corresponding size of the tongue is shaped according to the required geometry of the curvature and is connected to the construction rails by the electric resistance welding to the treated prism.

Description

Block tram half-exchange

Technical field

The technical solution relates to a half-change in a block design for tramway turnouts and a method of its production.

BACKGROUND OF THE INVENTION

The prior art solutions are assembled assemblies, consisting of bent rails connected by bolts through inserts and equipped with a sliding plate. The disadvantages of these exchanges are the high weight, laboriousness, the possibility of loosening the screws, more demanding maintenance and the consequent reduction of the safety of the passage of trams through the exchange and the necessity of more frequent inspection.

Another known embodiment of the exchanges are welded exchanges of several parts. However, even these replacements have some components bolted, which is a disadvantage in terms of bolt loosening and the consequent higher maintenance requirements. Another disadvantage of these solutions is higher manufacturing effort, lower production accuracy, the possibility of cracking of welds with final structural instability.

Other known embodiments are exchanges in which the basic shape of the body block is already predetermined (molded or rolled), thereby not giving its variability for the various radiuses of switches. The impossibility of variability is a disadvantage for dealing with exchanges with other geometric parameters.

SUMMARY OF THE INVENTION

SUMMARY OF THE INVENTION The object of the invention is to eliminate the above-mentioned drawbacks to the greatest possible extent. This is achieved by a block half-exchange according to the invention, which consists essentially of a block body machined in the desired curvature geometry and integral therewith in a permanently connected construction rail with a rail trough continuously extending from the construction rails over the block body, in the recess of the block body, a tongue is stored on the sliding surface provided on the block body and a tongue support is provided on the body.

The advantage of the block tramway half-exchange thus formed is that it is no longer necessary to use a sliding plate.

It is preferred that the tongue is fastened in its root part in the body of the block by means of a tongue clip and screws, since it is no longer necessary to use any cover devices or assembly and inspection cabinets.

It is expedient if an abutment for the adjusting device is formed on the block body, since an additional base plate does not have to be used.

With respect to the placement of the block tram half-change, it is advantageous if surfaces for the fasteners with sleepers are provided on the block body, since it allows the attachment of the half-change by various types of fastening.

It is expedient if a groove for the heating pipe is provided in the block body on its side wall, which is better protected against sewage and provides better heating of the tongue and block body contact surfaces.

It is preferred that the height of the block body is identical to the height of the structural rail, which allows the rail substructure to be made in one ideal plane without further height limitations.

An advantageous method of production of a block tram rail half-exchange consists in that the prism of rail quality material and dimensionally corresponding to the size of the tongue is shaped according to the required curvature geometry, then welded to the prism by electric resistance welding with melting the construction rail. by machining, it creates continuous grooves and a recess for receiving the tongue, after which the chambers for laying to the ground, drainage openings, heating chambers, rod openings and tongue supports are machined, and the block tramway half-change is completed by profiling the rails according to the track superstructure used.

BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be explained in more detail with reference to the drawings, in which Fig. 1 shows a block tramway rail exchange; Fig. 2 shows an exemplary embodiment of a block tramway half-exchange;

3.1 - 3.2 detail of view A and B, in Fig. 3.3 - 3.5 detail of section C-C, D-D, E-E of the block tramway half-exchange according to Fig. 2;

Description of an exemplary embodiment

As can be seen from FIG. 1, the block tramway train interchange 1 consists of two analogously formed half-exchangers 2,3, of which the half-changer 3 will be described in more detail, on the right side of the interchange 1.

The half-exchange 3 of FIG. 2 consists of a body of a block 4 shaped in the desired curvature geometry. For example, structural rails 5, the height of which is identical to that of block 4, are connected to the body of the block 4, for example by means of resistance welding.

3.1, 3.2 are provided with a groove 6 which extends continuously from the construction rails 5 through the block body 4. On the block body 4 according to Fig. 3.3 a recess is provided on the heel 7 and according to Fig. 3.5 a tongue 9 is also provided on the body of the block 4 with its root portion 14 according to FIG. 4 by means of a tongue clip 11 and a screw 12, the tongue? An abutment 13 for an adjustment device (not shown) is also provided directly on the body of the block 4 according to FIG. 3.4. To accommodate the heating tube 15, a groove 16 for the heating tube is formed from the outside. Sewage drainage is provided by a drainage hole 19. At all ends of the half-exchange, profiling according to views A and B is provided for an ideal connection to the track. To accommodate the tongue with a rod not shown, 4 rod holes 20 are drilled in the body of the block.

The method of making the two half exchanges 2,3 is analogous. It is based on a prism-shaped body, which is cut in length to match the tongue size. On the body prepared in this way, the lower and upper surfaces are milled. According to the marking, the body is heated and fired with the addition for the required curvature geometry. Subsequently, according to the machining program, the exact basic shape of the block body 4 is achieved according to the geometry used, the desired height according to the used rail 5, a recess on the foot 7 for attachment to a not shown substrate. The rod holes 20 are then drilled. Next, the construction rails 5 are cut to the desired length and profiled according to view A and B by milling according to the machining program. These structural rails 5 are welded by the electrical resistance method with fusion to the body of the block 4. Subsequently, the welds from the upper and lower surfaces of the half-exchange 3 are milled into a plane and the welds are flattened hot. According to the machining program, the groove 6, the sliding surface 7, the tongue support 10, the drainage openings 19, the drawbar openings 20 are further achieved in the half-exchange 3 by milling. Finally, the structural rails 5 welded to the body of the block 4 are milled to the desired final dimension of the half-exchange 3.

Holes 9 are drilled in the thus prepared half-exchange 3, in which threads for the screws 12 are cut. Then, a tongue 9 is mounted on the stop 17, which is welded to the insert 18. Finally, the tongue 9 is firmly attached to the half-exchange by tongue 11 and screws 12. 3.

Industrial applicability

The block tramway half-exchange according to the invention finds application in tramway track switches as a device which allows vehicles to travel from two tracks to one common track and vice versa.

Claims (6)

Patent claims A block tramway half-change, characterized in that it consists of a block body (4) shaped in the desired curvature geometry and integrally connected to it with a permanently connected construction rail (5) with a rail groove (6) continuously extending from the construction rails (5). ) over the body of the block (4), wherein a recess is formed on the foot (7) of the body of the block (4) and a tongue (9) is mounted on the sliding surface (8) provided on the body of the block (4); a tongue support (10) is also provided. Block tramway half-change according to claim 1, characterized in that the tongue (9) is fastened in its root part (14) in the body of the block (4) by means of a tongue clip (11) and screws (12). Block tramway half-change according to claim 1 and 2, characterized in that a support (13) for the adjusting device is formed on the block body (4). A block tramway half-change according to any one of claims 1 to 3, characterized in that a recess is provided on the block body (4) for the sleeper fasteners (7). A block tramway half-exchange according to any one of claims 1 to 4, characterized in that a groove (16) for the heating tube (15) is provided in the block body (4) on its side wall. A block tramway half-change according to any one of claims 1 to 5, characterized in that the height of the block body (4) is identical to the height of the structural rail (5). Ί. Method for producing a block tramway half-change according to claim 1, characterized in that the beam of rail quality material and dimensionally corresponding to the tongue size is shaped according to the desired curvature geometry and then connected to the beam by electric resistive welding with deposition. the resulting workpiece is machined to form continuous grooves and a recess for receiving the tongue, then the machining is formed chambers for bedding, drainage holes, heating chambers, holes for rods and tongue supports and profiling of the rails according to the track superstructure is completed block tramway rail half exchange.