Rail transit high-tension overhead conductor

Abstract

The utility model provides a rail transit high tension overhead conductor, which relates to the field of rail transit overhead conductors, and comprises a wire passing frame and a rail overhead conductor, the rail overhead conductor penetrates through the wire passing frame, the upper and lower end faces of the wire passing frame are provided with adjusting grooves, and the wall of the wire passing frame is coupled with a tension rotating drum. A rail overhead conductor is wound on the drum surface of the tension drum, the upper end and the lower end of the tension drum are connected with a driving plate through fixing columns, the left side face and the right side face of the driving plate are connected with the groove wall of an adjusting groove through special-shaped extension springs, and the surface of the adjusting groove is in threaded connection with limiting columns through limiting holes. The utility model solves the problems that the connection tension of the existing overhead conductor and the bracket is relatively constant, and the overhead conductor is damaged due to the long-term influence of external wind pressure.

Description

Technical Field

[0001] The utility model relates to the field of rail transit overhead wires, in particular to a high-tension overhead wire for rail transit. Background Art

[0002] Rail transit refers to a type of transportation vehicle or transportation system in which operating vehicles need to travel on specific tracks. It is a general term for fast, large-capacity public transportation that is usually powered by electricity and adopts a wheel-rail operation mode. The electricity used by operating vehicles is transmitted through overhead wires. However, the tension between the existing overhead wires and the brackets is relatively constant, and the overhead wires are damaged by external wind pressure for a long time. Utility Model Content

[0003] In order to overcome the defects of the prior art, a high-tension overhead conductor for rail transit is provided to solve the problem that the tension between the existing overhead conductor and the bracket is relatively constant and the overhead conductor is damaged by external wind pressure for a long time.

[0004] To achieve the above object, a high-tension overhead conductor for rail transit is provided, comprising: a wire-through frame and a rail overhead conductor, wherein the rail overhead conductor runs through the wire-through frame.

[0005] The upper and lower end surfaces of the wire passing frame are provided with adjustment grooves, the wall axis of the wire passing frame is connected to a tension drum, the surface of the tension drum is wound with track overhead wires, the upper and lower ends of the tension drum are connected to a drive plate through a fixed column, the left and right sides of the drive plate are connected to the wall of the adjustment groove through a special-shaped tension spring, and the surface of the adjustment groove is screwed to a limiting column through a limiting hole.

[0006] Furthermore, the upper and lower surfaces of the wire passing frame are screwed with fixed covers, and the surface of the fixed cover is bonded with a waterproof pad; and the waterproof pad is pressed against the surface of the adjusting groove.

[0007] Furthermore, a fixing column is inserted in the middle of the adjustment slot, a driving plate is welded on the surface of the fixing column, and special-shaped tension springs are symmetrically hung on the left and right sides of the driving plate.

[0008] Furthermore, threading blocks are symmetrically arranged at the left and right ends of the threading frame; and the track overhead wires are passed through the inner sides of the threading blocks, and connecting rods are welded to the front and rear sides of the threading blocks.

[0009] Furthermore, an insulating sleeve is bonded to the inner side of the threading block, and the side end of the connecting rod is connected to the side sliding groove of the wire passing frame through a sliding block.

[0010] Furthermore, the special-shaped stretch spring is in a semi-ring shape; and hook rings are provided at both ends of the special-shaped stretch spring.

[0011] Furthermore, the wire passing frame, the tension drum, the fixing column, the special-shaped tension spring and the driving plate constitute a high-efficiency tension adjustment structure for the track overhead wire.

[0012] The beneficial effect of the utility model is that the rail transit high-tension overhead wire of the utility model utilizes the surface of the tension drum in the wire frame to be wound around the rail overhead signal line. When the suspended end of the rail overhead wire is pressed by external forces such as wind pressure, the tension drum is pulled to rotate, and the rail overhead wire wound on the surface of the tension drum is released toward the compressed end, so that the deformed special-shaped tension spring pushes the tension drum to reset, and the rail overhead wire that has been compressed is gathered, which is convenient for effectively buffering and adjusting the compressive strength of the rail overhead wire, enhancing the efficient tension adjustment effect of the overhead wire, reducing the damage to the overhead wire caused by external pressure, and improving the service life of the overhead wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of a rail transit high-tension overhead wire according to an embodiment of the utility model.

[0014] Figure 2 It is a schematic diagram of the front cross-sectional structure of a rail transit high-tension overhead wire according to an embodiment of the utility model.

[0015] Figure 3 It is a schematic diagram of a top cross-sectional structure of a wire frame according to an embodiment of the utility model.

[0016] Figure 4 The figure is a side structural schematic diagram of a threading block according to an embodiment of the utility model.

[0017] In the figure: 1. Wire frame; 11. Fixed cover; 12. Waterproof pad; 13. Adjustment slot; 14. Limit hole; 2. Track overhead wire; 3. Threading block; 31. Connecting rod; 32. Insulating sleeve; 33. Slider; 4. Tension drum; 41. Fixed column; 42. Special-shaped tension spring; 43. Limit column; 44. Drive plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Reference Figures 1 to 4As shown, the utility model provides a high-tension overhead wire for rail transit, comprising: a wire-through frame 1 and a track overhead wire 2, the track overhead wire 2 is passed through the wire-through frame 1, the upper and lower end faces of the wire-through frame 1 are provided with adjustment grooves 13, the frame wall axis of the wire-through frame 1 is connected to a tension drum 4, the track overhead wire 2 is wound around the drum surface of the tension drum 4, the upper and lower ends of the tension drum 4 are connected to a driving plate 44 through a fixing column 41, the left and right sides of the driving plate 44 are connected to the groove wall of the adjusting groove 13 through a special-shaped tension spring 42, and the surface of the adjusting groove 13 is screwed with a limiting column 43 through a limiting hole 14.

[0020] First, wind the track overhead wire 2 around the surface of the tension drum 4 in the wire frame 1, then pass the wire frame 1 out, and install the wire frame 1 on the overhead support. When the track overhead wire 2 in the suspended state between the supports is pressed by wind pressure, the track overhead wire 2 at the pressure end pulls the tension drum 4 to rotate, so that the track overhead wire 2 at the pressure end is released to reduce the tension, and avoid excessive tension causing the track overhead wire 2 to be over-pressed and broken or damaged. When the wind pressure disappears or becomes smaller, the deformation force of the special-shaped tension spring 42 pushes the tension drum 4 to rotate and reset, so as to retract the track overhead wire 2 and restore the previous tension of the track overhead wire 2, thereby realizing a self-adjusting high-tension track overhead wire 2.

[0021] In this embodiment, the upper and lower surfaces of the wire frame 1 are screwed with fixing covers 11 , and the surface of the fixing cover 11 is bonded with a waterproof pad 12 ; and the waterproof pad 12 is pressed against the groove surface of the adjustment groove 13 .

[0022] As a preferred embodiment, by removing the fixing cover 11, the special-shaped stretch spring 42 in the adjustment slot 13 can be replaced to ensure the deformation performance of the special-shaped stretch spring 42, so that the tension drum 4 can rotate and reset normally.

[0023] In this embodiment, a fixing column 41 is inserted in the middle of the adjustment slot 13, a driving plate 44 is welded on the surface of the fixing column 41, and a special-shaped tension spring 42 is symmetrically hung on the left and right sides of the driving plate 44. The special-shaped tension spring 42 is in a semi-ring shape; and hooks are provided at both ends of the special-shaped tension spring 42.

[0024] As a preferred embodiment, the driving plate 44 stretches or compresses the special-shaped stretch springs 42 on both sides, causing the special-shaped stretch springs 42 to deform. The deformation force is used to push the driving plate 44 to reset and retract the track overhead wires 2 where the pressure disappears.

[0025] In this embodiment, the left and right sides of the wire passing frame 1 are symmetrically provided with threading blocks 3; the inner side of the threading block 3 is penetrated by the track overhead wire 2, and the front and rear sides of the threading block 3 are welded with connecting rods 31. The inner side of the threading block 3 is bonded with an insulating sleeve 32, and the side end of the connecting rod 31 is connected to the side sliding groove of the wire passing frame 1 through a slider 33.

[0026] As a preferred embodiment, the threading block 3 is convenient for limiting the moving position of the track overhead wire 2, so that the track overhead wire 2 enters and exits from the center line of the frame surface of the wire frame 1, avoiding the deviation and shaking of the track overhead wire 2, and driving the threading block 3 located on the side of the wire frame 1 to move up and down through the tension of the track overhead wire 2.

[0027] In this embodiment, the wire frame 1 , the tension drum 4 , the fixing column 41 , the special-shaped tension spring 42 and the driving plate 44 constitute a high-efficiency tension adjustment structure of the track overhead wire 2 .

[0028] As a preferred embodiment, the efficient tension adjustment structure of the track overhead wire 2 facilitates manual suspension of the track overhead wire 2, effectively buffers and adjusts the compressive strength of the track overhead wire, enhances the efficient tension adjustment effect of the overhead wire, and reduces the damage to the overhead wire caused by external pressure.

[0029] The utility model can effectively solve the problem of long-term damage to overhead wires due to external wind pressure, is convenient for effectively buffering and adjusting the compressive strength of overhead wires, enhances the efficient tension adjustment effect of overhead wires, reduces the damage to overhead wires due to external pressure, and increases the service life of overhead wires. It is suitable for high-tension overhead wires in rail transit.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-tension overhead conductor for rail transit, comprising: A wire-through frame (1) and a track overhead wire (2), wherein the track overhead wire (2) passes through the wire-through frame (1), and is characterized in that: The upper and lower end surfaces of the wire passing frame (1) are provided with adjustment grooves (13); the frame wall of the wire passing frame (1) is axially connected to a tension drum (4); the drum surface of the tension drum (4) is wound with a track overhead wire (2); the upper and lower ends of the tension drum (4) are connected to a drive plate (44) via a fixing column (41); the left and right sides of the drive plate (44) are connected to the groove wall of the adjustment groove (13) via a special-shaped tension spring (42); and the surface of the adjustment groove (13) is screwed to a limit column (43) via a limit hole (14).

2. A rail transit high-tension overhead wire according to claim 1, characterized in that: The upper and lower surfaces of the wire-through frame (1) are screwed with a fixing cover (11), and a waterproof pad (12) is bonded to the surface of the fixing cover (11); and the waterproof pad (12) is pressed against the groove surface of the adjustment groove (13).

3. A rail transit high-tension overhead wire according to claim 1, characterized in that: A fixing column (41) is inserted in the middle of the adjustment slot (13), a driving plate (44) is welded on the surface of the fixing column (41), and special-shaped tension springs (42) are symmetrically hung on the left and right sides of the driving plate (44).

4. The high-tension overhead wire for rail transit according to claim 1, characterized in that: The left and right side ends of the wire passing frame (1) are symmetrically provided with wire threading blocks (3); the inner side of the wire threading block (3) is penetrated by a track overhead wire (2); and connecting rods (31) are welded to the front and rear side surfaces of the wire threading block (3).

5. A rail transit high-tension overhead wire according to claim 4, characterized in that: An insulating sleeve (32) is bonded to the inner side of the threading block (3), and the side end of the connecting rod (31) is connected to a side sliding groove of the threading frame (1) via a sliding block (33).

6. The high-tension overhead wire for rail transit according to claim 1, characterized in that: The special-shaped stretch spring (42) is in a semi-ring shape; and hook rings are provided at both ends of the special-shaped stretch spring (42).

7. The high-tension overhead wire for rail transit according to claim 1, characterized in that: The wire passing frame (1), the tension drum (4), the fixing column (41), the special-shaped tension spring (42) and the driving plate (44) constitute a high-efficiency tension adjustment structure of the track overhead wire (2).

Images