FI112687B - Method and apparatus for manufacturing a web - Google Patents

Description

112687

METHOD AND EQUIPMENT FOR THE CONSTRUCTION OF THE TRACK

This invention relates to a method and apparatus for making a track, such as a railway track. More particularly, the invention relates to the manufacture of a track by pushing the rails forward of the 5 rail pushing trolleys so that they are positioned correctly on the sleepers.

There are several different methods of making a web. In one conventional method, rails are brought to the track site next to the sleepers, where they are lifted and secured. The rails are pulled onto the finished crushed bed and lifted with 10 different suitable lifting equipment. The problem with this method is its application in situations where there is not much space along the track, such as in tunnels. In addition, the method is not very rail-friendly, i.e., it is possible to damage the rails with such a method.

It is also known in the art to make a track by a method of pushing the rail from the side of an already completed track onto the sleepers by 15 different methods of pushing. When a new pair of rails is in place, the rails are secured and the rail pusher moves to the end of the rails to insert the new rails. This is repeated until the section to be made is complete. Such apparatus is disclosed e.g. EP 0 699 802, EP 0 955 409 and US 5,961,271. Such apparatus 20 generally consists of a rail pushing trolley having means for pushing rails; '; a rail trolley in place and behind, with rails to be installed: 1: stored. Such pushing methods are much more rail-friendly.

In addition, there are various track support supports located on the front of the rail pushing trolley to prevent any rail falling asleep when pushed. It is also known to install rollers on track sleepers on which rails slide when pushed or pulled. The use of the above supports and rollers is shown *. ·: Mm. in SE 511 815.

: ·,: 30 In the present invention, a track is manufactured by pushing a pair of rails from a rail pushing trolley ', <: forward from a certain height above the level of the track so that the ends of the rails bend sufficiently j;' · Near the rail level, they are attached to a trolley that guides the ends of the rails and thus: ', · rails to the correct positions. This twin wagon travels along the ends of the rails under the action of a 2 112687 pushing force. The invention further relates to a rail-supporting roller carriage located in front of a rail-pushing carriage, which is provided with height-adjustable roller rail support.

The track manufacturing method and apparatus of the invention are capable of producing 5 tracks in a rail-friendly manner without damaging the rails, regardless of the geometry of the track to be manufactured.

More specifically, the method according to the invention is characterized by what is stated in the characterizing part of claim 1 and the apparatus according to the invention is what is described in the characterizing part of claim 3.

In the following, the invention will be described in more detail with reference to the accompanying Figure 1, which schematically shows an apparatus according to the invention.

The apparatus for manufacturing the track shown in Figure 1 consists of a rail car (1), a rail feed car (2), a roller carriage (3) and a bank carriage (4).

Before the equipment is put into service, the equipment roller carriage, rail pusher carriage and rail carriage shall be driven to the end of an existing or completed track as shown in the figure.

20

When using the apparatus, a first pair of rails is pulled from the rail carriage (1) to the pushing members of the rail pushing carriage (2), such as push rollers, for example: by hydraulic cylinders. This step is performed only for the first pair of rails, since the following rails can be tied after the previous rails by means of tie rails, the rails being carried along with the previous rails of the rails to the pusher members of the rail pushing carriage. Once the rails have been received: for the push members of the rail push carriage, the pair of rails will be pushed forward from the front end of the rail push carriage.

A roller carriage (3) is attached to the front of the rail pushing trolley, which serves to support: 30 rails, thus preventing possible damage to the rails by bending or twisting.

The supports for the roller carriage have been stolen by the roller skates between which the rails pass. Roller trolley; . the height of the fund can be adjusted, for example, hydraulically, for example. Level:: Depending on altitude. By adjusting the height of the roller carriage fund, it is possible to compensate the rail stresses due to the geometry of the web being manufactured by 3 1 1 O <o 17 I, thus preventing any possible damage to the rails.

As you continue to push the track pair far enough forward from the roller carriage, the ends of the 5 track pairs will begin to bend towards the track plane due to the weight of the rails. When the ends of the rails are bent sufficiently close to the track plane, the ends are attached to the trolley (4). The fastening of the ends of the rails to the trolley can be advantageously implemented, for example, by means of a quick locking of the rails. The trolley travels on its own rails over the sleepers and moves forward with the thrust of a pair of rails along the rails' ends, guiding the rails to their correct positions. 10 As the trolley progresses, its rails are moved after the trolley passes them into the next pair of rails. The track gauge of the trolley may be either less or equal to the track to be manufactured. When the track width is the same as the track to be manufactured, the rails of the trolley are placed on the washers of the track rails. This allows the person moving the rails to work outside of the pair of rails to be pushed, which facilitates work.

15

If the pushed rails are so long that they bend down to the level of the track between the roller carriage and the bank carriage, as is usually the case with such a track manufacturing method, guide rails are placed at suitable intervals over which the rails can move forward. These bearing rollers are secured to the washers 20 of the rails and are provided with supports at the ends of the roll which prevent the rail from dripping from the rolls as the rail is pushed forward. The rollers used in the track curves also have side rollers supporting the rail sideways, thus preventing the rail from tipping over, and: reducing the friction caused by the rail bending.

: 25 After the entire rails have been pushed into place, the rails connecting the rails are dismantled, whereby the ends of the rails pair with the previous rails on the sleepers on their washers. By bringing the roller carriage roller rail to the rail junction: it is possible to minimize the stresses at the junction; 1 when removing the tie bar, which reduces the possibility of rail damage and increases. ': 30 securing the tie rods. In addition, the roller carriage supporting both the top and bottom of the rail carriage prevents the ends of the new pair of rails from jumping upward when the tie bars are removed.

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When the rails are removed, the ends of the rails are in place, the ends of the new rails are attached to the ends of the rails which are already in place on the rails. The rollers under the rails are then removed by lifting each rail at a suitable position with a separate hoist. This hoist also removes the bank trolley under the ends of a pair of rails. When a new pair of 5 rails is in place, the rails are fastened at a sufficient number of locations to the sleepers so that the new pair of rails will withstand the load of the rail pushing equipment. After the rails are attached, the equipment is moved to the end of the installed rails to push the next pair of rails.

The above steps are repeated until the track is complete.

10

The final fastening of the rails to the sleepers takes place at the appropriate moment after the rails have been laid. This can be done as soon as the entire rail pusher has moved over the rail pair. Welding the ends of the rails into a continuous web is only done after the web has been wound and supported, with the web having 15 correct geometries. 1

Claims (8)

A method for producing a track in which a pair of rails are pushed forward at a certain height from the plane by means of devices already in the striped region, characterized in that when the ends of the track pair 5 extend so that to the right places on the sleepers. Method according to Claim 1, characterized in that the apparatus (4) to which the ends of the 10 rails are attached is driven by the force pushing the rails. 3. Apparatus for making a track comprising: - a rail for carrying the carriage (1) rails, - a rail push for pulling the carriage (2) from a rail and pushing into a 15-rail mounting area, - a rolling carriage (3), rollers for track sleepers to be mounted beneath the rails for guiding the rails when the rails are so long as to bend to the track plane, characterized in that the apparatus comprises a bank carriage (4) to which the ends of the track pair are attached; * Apparatus according to claim 3, characterized in that the bank carriage (4) proceeds. * with the ends of a pair of rails under the action of the pushing force of the rails. Apparatus according to claim 3 or 4, characterized in that the trolley (4) travels on its own rails on the sleepers. ; Apparatus according to claim 5, characterized in that the track width of the trolley (4):, * is the same as the track width of the track to be manufactured. 30 Apparatus according to one of Claims 3 to 6, characterized in that the roller carriage (3) comprises means for moving the supporting elements of the rail in the vertical direction. 6. A Ο <7 f \ r · I i Z. 0 0 / Apparatus according to one of Claims 3 to 7, characterized in that the rail supporting members of the roller carriage (3) comprise means for supporting both the upper and lower surfaces of the rail. 5 PATENT LOAD: