WO2021082412A1

WO2021082412A1 - 1676 mm and 1000 mm double-rail-distance mixed gage turnout

Info

Publication number: WO2021082412A1
Application number: PCT/CN2020/091972
Authority: WO
Inventors: 李红霞; 于开福; 汤铁兵; 康龙; 崔琨喨; 魏金彩; 冯薇
Original assignee: 中铁山桥集团有限公司
Priority date: 2019-10-28
Filing date: 2020-05-25
Publication date: 2021-05-06
Also published as: WO2021082212A1; EP4053335A1; CN110714445B; CN110714445A; EP4053335A4

Abstract

The present invention provides a 1676 mm and 1000 mm double-rail-distance mixed gage turnout, mainly consisting of a strip switch and a stiff frog. The strip switch comprises three fixed stock rails and three linked point rails. The three stock rails are a 1676 mm straight-strand stock rail, a 1000 mm straight-strand stock rail and a common curve-strand stock rail, respectively. The three point rails are a 1676 mm curve point rail, a 1000 mm curve point rail and a common linear point rail, respectively. The stiff frog is mainly composed of a bidirectional obtuse frog, a first obtuse frog and a second obtuse frog. A mixed gage scheme is provided for 1676 mm width rails and 1000 mm meter gage rails, and in the situation that the space is confined and guardrails cannot be arranged, bidirectional obtuse frogs with a self-protection function are designed.

Description

A kind of 1676mm and 1000mm double-gauge line switch

Technical field

The invention relates to the technical field of double-gauge nested turnouts, in particular to a 1676mm and 1000mm double-gauge nested turnouts.

Background technique

In order to satisfy that two trains with different gauges pass through the turnouts, two sets of single-track turnouts with the same direction of different gauges can be sleeved together to form a set of turnouts. Among the set of line switches, the three-track line switch is the most commonly used form. One of the tracks is a common track, and the other track is set according to the vehicle wheel set parameters.

Commonly used sets of switch gauges include 1435mm standard rail and 762mm inch rail set, 1435mm standard rail and 1000mm meter rail set. The invention patent CN 104452487 B publicly authorized by the State Intellectual Property Office on February 10, 2016 discloses a three-gauge turnout that satisfies the 1435mm standard rail, the 1067 meter rail and the 1000mm meter rail at the same time.

Up to now, there is no domestic proposal concerning 1676mm wide gauge and 1000mm meter gauge line sets.

Summary of the invention

In view of the above-mentioned problems, the present invention provides a 1676mm and 1000mm double-gauge bushing switch.

A 1676mm and 1000mm double-gauge line switch, which is mainly composed of a switch and a fixed frog. The switch includes three fixed basic rails and three linked switch rails. The three basic rails are respectively 1676mm straight strands. Basic rail, 1000mm straight strand basic rail and common curved strand basic rail. The three pointed rails are respectively 1676mm curved tip rail, 1000mm curved tip rail and common straight tip rail; the fixed frog is mainly set on the 1000mm straight strand basic rail. The two-way obtuse frog at the intersection of the rail and the 1676mm curved rail, the first acute angle frog at the intersection of the 1000mm curved rail and the common straight rail, and the second at the intersection of the 1676mm curved rail and the shared straight rail. Acute angle frog formation; when the 1676mm curved rail is pulled to the 1676mm straight basic rail, the wide rail 1676mm side strand and the meter rail 1000mm side strand are normal trains; when the shared straight rail is pulled to the common curved basic rail, the wide rail 1676mm straight strands and 1000mm meter gauge straight strands are normal trains.

Further, the two-way obtuse-angle turnout includes a first long core rail connected to the 1000mm straight basic rail, a first short core rail connected to the root of the first long core rail and arranged in parallel with the 1676mm curved tip rail, and a first short core rail connected to the root of the first long core rail. An acute angle frog faces the second long core rail connected with the side wing rails of the 1000mm straight strand basic rail, and the second short core rail connected to the root of the second long core rail and arranged in parallel with the 1000mm straight strand basic rail, respectively connected at both ends The first wing rail of the 1676mm curved tip rail and the 1000mm straight basic rail, and the second wing rail arranged on the opposite side of the first wing rail.

Further, the side of the 1676mm straight strand basic track is provided with a first guard rail that ensures that the 1676mm gauge train passes the first acute angle switch in the reverse direction when the straight strand is opened, and ensures that the 1676mm gauge train passes the second acute angle in the reverse direction when the straight strand is opened. The second guard rail of the turnout; the side of the 1000mm straight strand basic rail is provided with a third guard rail that ensures that the 1000mm gauge train passes the first acute turnout in the reverse direction when the straight strand is opened, and ensures that the 1000mm gauge train is reversed when the straight strand is opened A fourth guard rail that passes through the second acute-angle turnout; a fifth guard rail that ensures that 1000mm gauge trains pass the two-way obtuse-angle turnout when the straight strand is opened is provided on the side of the shared linear switch rail; the shared curved strand basic track The side is equipped with a sixth guard rail to ensure that the 1676mm gauge train passes the two-way obtuse turnout in the reverse direction when the side strand is opened, and the seventh guard rail to pass the second acute-angle turnout in the reverse direction, and to ensure that the 1000mm gauge train passes the two-way obtuse-angle turnout in the reverse direction when the side strand is opened. The eighth guard rail.

The present invention provides a threading scheme for 1676mm wide rail and 1000mm meter rail, and in the case of limited space and no guard rail can be installed, a two-way obtuse angle frog with self-protection function is designed; in addition, the threaded turnout line type The total length, front length and back length of the line can be completely consistent with the existing line, and at the same time, it can meet the needs of old line renovation and upgrading and new line construction.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the 1676mm and 1000mm double-gauge bushing switch.

Detailed ways

The following describes the technical solutions in the embodiments of the present invention clearly and completely with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of the present invention.

Example 1

A 1676mm and 1000mm double-gauge line switch, as shown in Figure 1, is mainly composed of a switch and a fixed frog; the switch includes three fixed basic rails and three linked switch rails.

The three basic rails are 1676mm straight strand basic rail 1, 1000mm straight strand basic rail 2 and common curved strand basic rail 3, and the three pointed rails are 1676mm curved tip rail 5, 1000mm curved tip rail 6 and common straight tip rail respectively. Track 7. In this embodiment, the linkage of the three tip rails is that each tip rail is fixedly connected with multiple tie rods, and the multiple tie rods are arranged in parallel at intervals and perpendicular to the 1676mm straight strand basic rail and the 1000mm straight strand basic rail; two of them are tie rods. Connected with a power device that provides power for turning the switch rail.

The fixed frog is mainly composed of a bidirectional obtuse frog 11 arranged at the intersection of a 1000mm straight strand basic rail 2 and a 1676mm curved tip rail 5, and the first set at the intersection of a 1000mm curved tip rail 6 and a common straight tip rail 7. The acute-angle frog 15 and the second acute-angle frog 20 arranged at the intersection of the 1676mm curved rail 5 and the common straight rail 7 are formed. The fixed frogs are all integrally cast high manganese steel frogs.

When the 1676mm curved tip rail 5 is pulled to the 1676mm straight basic rail 1, the wide rail 1676mm side strand and the meter rail 1000mm side strand are normal trains; when the shared straight tip rail is pulled to the common curved strand basic rail, the wide rail 1676mm straight strand Normally passing trains with 1000mm straight stock of meter gauge.

In order to meet the design requirements of 1676mm and 1000mm double-gauge frogs, the positions of obtuse-angle frogs and acute-angle frogs have been greatly changed, resulting in limited space between the obtuse-angle frogs and the acute-angle frogs, and the 1000mm gauge train was opened for straight strands. When passing an obtuse frog in the reverse direction, the guard rail cannot be used to guarantee the passage of the train. To solve this problem, the obtuse-angle frog adopts a two-way frog structure, which is composed of a first frog and a second frog whose heads face each other. When the straight-strand open 1000mm gauge train passes through the obtuse frog in the reverse direction, the second branch frog can play a role of self-protection, and the actual function and working principle can be compared to the guard rail.

Specifically, in this embodiment, the two-way obtuse-angle switch includes a first long-center rail connected to a 1000mm straight basic rail, and a first long-center rail connected to the root of the first long-center rail and arranged in parallel with the 1676mm curved tip rail. A short core rail, a second long core rail connected to the side wing rail of the first acute angle frog facing the 1000mm straight strand basic rail, and a second short core connected to the root of the second long core rail and arranged parallel to the 1000mm straight strand basic rail The rail and the two ends are respectively connected with the first wing rail of the 1676mm curved tip rail and the 1000mm straight basic rail, and the second wing rail arranged on the opposite side of the first wing rail.

In this set of turnouts, the following driving requirements should be met:

1. Direct share opening

①The 1676mm gauge train passed forward and passed smoothly.

②The 1676mm gauge train passes in the reverse direction. When entering the first and second acute-angle turnouts, in order to ensure the passage, the 1676mm straight strand basic track side is equipped with the first to ensure that the 1676mm gauge train passes the first acute-angle turnout in the reverse direction when the straight strand is opened. The guard rail 14 and the second guard rail 18 that ensure that the 1676mm gauge train passes the second acute turnout in the reverse direction when the straight strand is opened.

③When the 1000mm gauge train passes in the forward direction, when entering the two-way obtuse-angle turnout, in order to ensure the passage, there is a fifth guard rail 12 beside the shared straight rail to ensure that the 1000mm gauge train passes the two-way obtuse-angle turnout in the forward direction when the straight strand is opened.

④The 1000mm gauge train passes in the reverse direction. There is no space between the 1000mm curved rail and the common straight rail to set up a guard rail, but the second branch frog plays a role of self-protection similar to the guard rail, ensuring that the train will enter the two-way obtuse-angle turnout. Always drive on the basic rail of 1000mm straight strands without deviation; beside the basic rail of 1000mm straight strands, there is a third guard rail 16 that ensures that the 1000mm gauge train passes through the first acute turnout in the reverse direction when the straight strands are opened, as well as the opening of the straight strands. When the 1000mm gauge train passes through the fourth guard rail 19 of the second acute-angle switch in the reverse direction.

2. Side stock opening

① When the 1676mm gauge train passes in the forward direction, when entering the two-way obtuse frog, the first branch frog also plays a role of self-protection.

②The 1676mm gauge train passes in the reverse direction. When entering the second acute-angle turnout, a seventh guard rail 21 is installed on the side of the common curved stock basic track; when entering the two-way obtuse-angle frog, in order to ensure the passage, the common curve A sixth guard rail 13 is provided beside the basic rail of the strand.

③The 1000mm gauge train passed in the forward direction and passed smoothly.

④The 1000mm gauge train passes in the reverse direction. When entering the first acute-angle turnout, to ensure passage, an eighth guard rail 17 is provided next to the common curved strand basic rail.

Finally, it should be noted that the above list is only a specific embodiment of the present invention. Obviously, the present invention is not limited to the above embodiments, and many variations are possible. All modifications that can be directly derived or associated by a person of ordinary skill in the art from the disclosure of the present invention should be considered as the protection scope of the present invention.

Claims

A 1676mm and 1000mm double-gauge line switch, which is mainly composed of a switch and a fixed frog, characterized in that the switch includes three fixed basic rails and three linked switch rails, and the three basic rails are respectively It is a 1676mm straight-strand basic rail, a 1000mm straight-strand basic rail, and a common curved-strand basic rail, the three pointed rails are respectively a 1676mm curved tip rail, a 1000mm curved tip rail and a shared linear tip rail;

The fixed frog is mainly composed of a two-way obtuse frog set at the intersection of a 1000mm straight strand basic rail and a 1676mm curved tip rail, a first acute angle frog set at the intersection of a 1000mm curved tip rail and a common straight tip rail, and a first acute angle frog set at the intersection of a 1000mm straight strand basic rail and a 1676mm curved tip rail. The second acute angle frog at the intersection of the curved rail and the common straight rail;

When the 1676mm curved tip rail is pulled to the 1676mm straight basic rail, the wide rail 1676mm side strand and the meter rail 1000mm side strand are normal trains; when the shared straight tip rail is pulled to the common curved strand basic rail, the wide rail 1676mm straight strand and meter Normally passing trains with a rail of 1000mm straight strands.
The 1676mm and 1000mm double-gauge bushing switch according to claim 1, wherein the two-way obtuse-angle switch comprises a first long-core rail connected to a 1000mm straight basic rail, and connected to the root of the first long-core rail. And the first short-core rail arranged in parallel with the 1676mm curved tip rail, the second long-core rail connected with the first acute-angle frog facing the side wing rail of the 1000mm straight basic rail, connected to the root of the second long-core rail and connected to the 1000mm The second short core rails arranged in parallel with the straight basic rails, the first wing rails respectively connected to the 1676mm curved tip rail and the 1000mm straight basic rails at both ends, and the second wing rails arranged on the opposite side of the first wing rail.
The 1676mm and 1000mm double-gauge bushing switch according to claim 2, wherein the side of the 1676mm straight strand basic track is provided with a first guard to ensure that the 1676mm gauge train passes the first acute-angle turnout in the reverse direction when the straight strand is opened. Rail, and the second guard rail that ensures that the 1676mm gauge train passes the second acute-angle turnout in the reverse direction when the straight strand is opened.
The 1676mm and 1000mm double-gauge bushing switch according to claim 2, wherein the 1000mm straight strand basic track side is provided with a third guard that ensures that the 1000mm gauge train passes the first acute-angle turnout in the reverse direction when the straight strand is opened. Rail and the fourth guard rail to ensure that the 1000mm gauge train passes the second acute turnout in the reverse direction when the straight strand is opened.
The 1676mm and 1000mm double-gauge sleeve turnout according to claim 2, characterized in that, a fifth guard rail is provided beside the common linear switch rail to ensure that 1000mm-gauge trains pass the two-way obtuse-angle turnout when the straight strand is opened. .
The 1676mm and 1000mm double-gauge bushing switch according to claim 2, characterized in that, the side of the common curved strand basic track is provided with a sixth guard rail that ensures that the 1676mm-gauge train passes the bidirectional obtuse-angle turnout when the side strands are opened. And the seventh guard rail that passes the second acute-angle turnout in the reverse direction, and the eighth guard rail that ensures that the 1000mm gauge train passes the two-way obtuse-angle turnout in the reverse direction when the side strands are opened.