CN216809383U

CN216809383U - Tunnel track structure and adjusting device for same

Info

Publication number: CN216809383U
Application number: CN202123277050.9U
Authority: CN
Inventors: 罗长明; 张雯雯; 李洋; 程鹏; 任韶鹏; 王宁; 李应飞
Original assignee: China Railway Engineering Equipment Group Co Ltd CREG
Current assignee: China Railway Engineering Equipment Group Co Ltd CREG
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-06-24
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a tunnel track structure and an adjusting device for the same, wherein the tunnel track structure comprises a first track structure, breakpoint transition sections are arranged on the first track structure, transition surfaces which are matched with each other are arranged between the breakpoint transition sections, and the track structure arranged at the position of the breakpoint transition section is a non-limiting structure. According to the utility model, the breakpoint transition section is arranged on the track, so that the track can be conveniently arranged at the turning part of the track in a bending manner; the adjusting device adjusts the displacement of the breakpoint transition section, so that smooth transition can be realized between adjacent tracks; and the real-time performance and the accuracy of track deviation correction are improved, the method can be suitable for realizing smooth track passing in a curve tunnel with a minimum turning radius, and the occurrence of derailment accidents is avoided.

Description

Tunnel track structure and adjusting device for same

Technical Field

The present invention relates to the field of track technology, and in particular, to a tunnel track structure and an adjusting device for the tunnel track structure.

Background

A steel track used for horizontal transportation in engineering, in particular to a shield tunnel and used for transporting electric locomotive materials on a bottom plate of a rear matching trolley is usually in a disconnected state at the joint of adjacent trolleys or is rigidly connected in a long and short rail mode. According to the track adopting the connection mode, under the condition that the shield tunnel is in a straight line type and the laying precision is high, the horizontal offset and the height difference can be kept small, and the electric locomotive can normally run on the track. However, in a line with a complicated plane line type or a small turning radius of the shield tunnel, the track laying difficulty is high, and a plurality of rear supporting trolleys can generate front-to-back and left-to-right deviation with different degrees when passing through, so that the tracks at two ends of a trolley joint generate large horizontal deviation or vertical deviation, when the electric locomotive runs to the position, wheel derailment is easy to occur, the electric locomotive is turned over, the construction progress is seriously influenced, and construction safety accidents are easy to cause.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a tunnel track structure and an adjusting device for the tunnel track structure, and solves the problem that a trolley is easy to derail and turn laterally at a small turning radius of a track in tunnel construction in the prior art.

The technical scheme of the utility model is realized as follows:

a tunnel track structure comprising:

the first track structure is provided with breakpoint transition sections, transition surfaces matched with each other are arranged between the breakpoint transition sections, and the track structure arranged at the position of the breakpoint transition section is of a non-limiting structure.

Further, the transition surface arranged between the breakpoint transition sections is a wedge-shaped matching surface.

The second track structure and the first track structure are arranged in the same track or in parallel, the second track structure comprises a floating short track and breakpoint transition sections, the floating short track is arranged between the breakpoint transition sections, and the floating short track is in clearance fit with the breakpoint transition sections; the short rail positioning piece is arranged on the track laying surface to limit the floating short rail.

Furthermore, a positioning clamping groove is formed in the short rail positioning piece, the floating short rail is embedded in the positioning clamping groove, and the floating short rail is in clearance fit with the positioning clamping groove.

Furthermore, two ends of the floating short rail are matched with the breakpoint transition section through wedge surfaces.

An adjustment device for a tunnel track structure, the adjustment device being arranged between a first track structure and/or a second track structure and the track laying face for adjusting a displacement at a section of the first track structure and/or the second track structure.

Further, adjusting device is including fixing the middle piece on the track surface of laying and wearing to establish the bolt on the middle piece, and middle piece and first track structure and/or second track structure interval set up, the tip and the breakpoint changeover portion cooperation of bolt.

Furthermore, the middle block is an internal thread block, an internal thread hole in threaded fit with the bolt is formed in the middle block, and the bolt is in running fit with the first track structure and/or the second track structure.

Further, the middle block is a unthreaded hole block, the middle block is provided with an unthreaded hole for a bolt to pass through, the bolt is in sliding fit with the unthreaded hole, the bolt is sleeved with an internal thread sleeve A, and the end part of the bolt is fixedly connected with the first track structure and/or the second track structure.

Furthermore, the middle block is a unthreaded hole block, the middle block is provided with an unthreaded hole for a bolt to pass through, and the bolt is in sliding fit with the unthreaded hole; and an internal thread sleeve B is arranged on the first track structure and/or the second track structure, and one end of the bolt, which is far away from the nut end, is in threaded fit with the internal thread sleeve B.

The utility model has the beneficial effects that:

1. the first track structure enables the track at the turning position to be arranged in a bending mode, so that the trolley can pass through the turning position more smoothly to avoid derailing of the trolley;

2. the displacement of the breakpoint transition section of one of the first track structures is adjusted through the adjusting device, and the staggering amount between wedge surfaces is reduced, so that smooth transition can be realized between the adjacent tracks; the real-time performance and the accuracy of track deviation correction are improved, and the method can be suitable for realizing smooth track passing in a curve tunnel with a minimum turning radius and avoiding derailment accidents;

3. the short floating rail which is not fixedly connected with the track laying surface is arranged at the turning position, and the short floating rail is limited by the short rail positioning piece, so that the short floating rail can have certain bending deformation, and the trolley is prevented from derailing; the automatic deviation rectification of the track is realized, and the displacement adaptability of the track structure is improved;

4. the adjacent two sections of the first track structure are matched through wedge surfaces, and smoothness of track connection at a turning position is guaranteed.

Drawings

In order to illustrate the embodiments of the utility model more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic view of the structure of the adjusting device of the present invention;

fig. 4 is a schematic perspective view of the adjusting device of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1 to 4, a tunnel track structure according to embodiment 1 of the present invention includes a first track structure 2, where the first track structure 2 is disposed at a tunnel turn; the first track structure 2 is a disconnected track, breakpoint transition sections are arranged on the first track structure 2, transition surfaces matched with each other are arranged between the breakpoint transition sections, and the track structure arranged at the position of the breakpoint transition sections is of a non-limiting structure. In this embodiment, one of the first track structures 2, i.e. the disconnected tracks, includes a fixed section 2-2 and a breakpoint transition section 2-1, which are connected, and the breakpoint transition section 2-1 is connected to the track pavement 1 through the fixed section 2-2; the other one of the first track structure can adopt a common track, and can also adopt the structure. The first track structure is of a disconnected structure, so that the tracks at the turning positions can be arranged in a bending mode, and the breakpoint transition section 2-1 is convenient for connection between the adjacent tracks.

Further, the transition surface arranged between the breakpoint transition sections of the first rail structure is a wedge-shaped matching surface, so that smooth connection between the adjacent rails can be further realized. The wedge surface is arranged at the end part of the breakpoint transition section 2-1.

Embodiment 2 is different from embodiment 1 in that, as shown in fig. 1, the present invention further includes a second track structure, and the second track structure and the first track structure may be disposed simultaneously as parallel tracks or may be disposed at a turn of a different track. The second track structure comprises a floating short rail 4 and breakpoint transition sections, the breakpoint transition sections of the second track structure are arranged on the disconnected tracks 3, the floating short rail 4 is arranged between the breakpoint transition sections of the second track structure, and two ends of the floating short rail 4 are in clearance fit with the breakpoint transition sections of the second track structure; the track laying surface 1 is provided with a short rail positioning piece 5 which is arranged for limiting the floating short rail 4. The short floating rail 4 is not fixedly connected with the track laying surface 1, so that the short floating rail 4 can have certain bending deformation when a trolley passes by, the trolley is prevented from derailing, and the deformation of the short floating rail 4 can be restored after the trolley passes by; the short rail positioning piece 5 is used for limiting the short floating rail 4 to a certain extent, so that the short floating rail 4 is not hindered from deforming, and the short floating rail 4 is prevented from shaking randomly.

Further, as shown in fig. 2, the short rail positioning piece 5 is connected with the track laying surface 1 through a screw 5-2, a positioning slot 5-1 is arranged on the short rail positioning piece 5, the floating short rail 4 is embedded in the positioning slot 5-1, the positioning slot 5-1 is arranged along the length direction of the track, and the floating short rail 4 is in clearance fit with the positioning slot 5-1, so that the floating short rail 4 can have certain bending deformation.

Further, as shown in fig. 1, two ends of the floating short rail 4 are matched with a transition surface of a breakpoint transition section of the second rail structure through wedge surfaces, so that smoothness of rail connection at a turning part is ensured, and normal passing function of the rail is ensured.

Embodiment 3, which differs from embodiment 2, is an adjusting device for a tunnel track structure, the adjusting device 6 being arranged between the first and/or second track structure and the track laying surface 1 for adjusting the displacement at the profile of the first and/or second track structure. In this embodiment, the adjusting device 6 is disposed between the breakpoint transition section 2-1 of the first track structure and the track laying surface 1, and is configured to adjust the displacement of the breakpoint transition section 2-1, so as to reduce the offset between wedge surfaces, and enable smooth connection between adjacent tracks. In other embodiments, the adjusting device 6 is disposed between the breakpoint transition section of the second track structure and the track laying surface 1, and is used for adjusting the transition surface displacement of the breakpoint transition section, so as to reduce the offset of the broken portion.

Further, as shown in fig. 3 and 4, the adjusting device 6 includes a middle block fixed on the track pavement surface 1 and a bolt 6-1 penetrating through the middle block 6-2, the middle block 6-2 and the breakpoint transition section 2-1 are arranged at intervals, and the bolt 6-1 is matched with the breakpoint transition section 2-1. The middle block 6-2 is an internal thread block, an internal thread hole in threaded fit with the bolt 6-1 is formed in the middle block 6-2, and the bolt 6-1 is in running fit with the breakpoint transition section 2-1. By rotating the bolt 6-1, under the action of the middle block 6-2, the front end of the bolt 6-1 moves to push the transition section 2-1 of the breakpoint and smoothly transits with another section of track.

Embodiment 4, it is different from embodiment 3 in that the breakpoint transition section 2-1 is provided with a cylinder block 6-5 which is matched with the front end of the bolt 6-1, and the front end of the bolt 6-1 is rotatably connected with the cylinder block 6-5.

Embodiment 5 differs from embodiment 3 in that the intermediate block 6-2 is a smooth hole block, a smooth hole for the bolt 6-1 to pass through is formed in the intermediate block 6-2, the bolt 6-1 is in sliding fit with the smooth hole, an internal thread sleeve a6-3 is sleeved on the bolt 6-1, and the end of the bolt 6-1 is fixedly connected with the breakpoint transition section 2-1. One end of the internal thread sleeve A6-3 is propped against the middle block 6-2, and the front end of the bolt 6-1 moves to push the breakpoint transition section 2-1 by rotating the internal thread sleeve A6-3.

Embodiment 6, which is different from embodiment 3 in that the intermediate block 6-2 is a light hole block, the intermediate block 6-2 is provided with a light hole for the bolt 6-1 to pass through, and the bolt 6-1 is in sliding fit with the light hole; an internal thread sleeve B6-4 is arranged on the breakpoint transition section 2-1, and one end, far away from the nut end 6-1-1, of the bolt 6-1 is in threaded fit with the internal thread sleeve B6-4. The nut end 6-1-1 of the bolt 6-1 is positioned at one side of the middle block 6-2 far away from the breakpoint transition section 2-1, the nut end 6-1-1 of the bolt 6-1 is propped against the breakpoint transition section 2-1, and the internal thread sleeve B6-4 is fixed with the breakpoint transition section 2-1; by rotating the bolt 6-1, the internal thread sleeve B6-4 drives the breakpoint transition section 2-1 to move.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A tunnel track structure, comprising:

the first track structure (2) is provided with a breakpoint transition section on the first track structure (2), transition surfaces matched with each other are arranged between the breakpoint transition sections, and the track structure arranged at the position of the breakpoint transition section is of a non-limiting structure.

2. The tunnel track structure of claim 1 wherein: the transition surface arranged between the breakpoint transition sections is a wedge-shaped matching surface.

3. The tunnel track structure of claim 1 or 2, wherein: the second track structure and the first track structure are arranged in the same track or in parallel, the second track structure comprises floating short rails (4) and breakpoint transition sections, the floating short rails (4) are arranged between the breakpoint transition sections, and the floating short rails (4) are in clearance fit with the breakpoint transition sections; the track laying surface (1) is provided with a short rail positioning piece (5) for limiting the floating short rail (4).

4. The tunnel track structure of claim 3 wherein: the short rail positioning piece (5) is provided with a positioning clamping groove (5-1), the floating short rail (4) is embedded in the positioning clamping groove (5-1), and the floating short rail (4) is in clearance fit with the positioning clamping groove (5-1).

5. The tunnel track structure of claim 3 wherein: and two ends of the floating short rail (4) are matched with the breakpoint transition section through wedge surfaces.

6. An adjusting device for a tunnel track structure according to any one of claims 1 to 5, characterized in that: the adjusting device (6) is arranged between the first track structure and/or the second track structure and the track laying surface (1) and is used for adjusting the displacement of the section of the first track structure and/or the second track structure; the adjusting device (6) comprises a middle block fixed on the track laying surface (1) and a bolt (6-1) penetrating through the middle block (6-2), the middle block (6-2) and the first track structure and/or the second track structure are arranged at intervals, and the end part of the bolt (6-1) is matched with the first track structure and/or the second track structure.

7. Adjusting device for a tunnel track structure according to claim 6, characterized in that: the middle block (6-2) is an internal thread block, an internal thread hole in threaded fit with the bolt (6-1) is formed in the middle block (6-2), and the bolt (6-1) is in running fit with the first track structure and/or the second track structure.

8. Adjusting device for a tunnel track structure according to claim 6, characterized in that: the middle block (6-2) is a unthreaded hole block, the unthreaded hole for the bolt (6-1) to pass through is formed in the middle block (6-2), the bolt (6-1) is in sliding fit with the unthreaded hole, an internal thread sleeve A (6-3) is sleeved on the bolt (6-1), and the end part of the bolt (6-1) is fixedly connected with the first track structure and/or the second track structure.

9. Adjusting device for a tunnel track structure according to claim 6, characterized in that: the middle block (6-2) is a unthreaded hole block, the middle block (6-2) is provided with a unthreaded hole for the bolt (6-1) to pass through, and the bolt (6-1) is in sliding fit with the unthreaded hole; and an internal thread sleeve B (6-4) is arranged on the first track structure and/or the second track structure, and one end of the bolt (6-1) far away from the nut end (6-1-1) is in threaded fit with the internal thread sleeve B (6-4).