Overhead line power transmission device at crossroad

Abstract

The utility model discloses an overhead line power transmission device at a turnout, and belongs to the technical field of power transmission. The overhead line power transmission device at the turnout comprises an overhead line body and further comprises a fixing assembly, the fixing assembly is located outside the overhead line body, a transverse rod is arranged above the fixing assembly, a wire is arranged on one side of the overhead line body, and the fixing assembly comprises a clamping plate, a fixing screw, a locking screw and a fixing disc. In order to solve the problems that the transportation efficiency and the operation progress are influenced and the equipment maintenance cost is increased due to the fact that an electric power system is easy to be unstable when an electric locomotive runs at a turnout, a cross rod is arranged above two overhead lines, and two wires are respectively arranged on two sides of the two overhead lines; the overhead line and the wire are connected with the cross rod through the fixing assembly, and the fixing assembly is connected with the cross rod through the fixing screw, so that the purpose of limiting the position of the overhead line is achieved, and the stability of connection between the pantograph and the overhead line is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission, in particular to an overhead line power transmission device at a turnout. Background Art

[0002] In electrified railways, the locomotive obtains electricity by raising and lowering the pantograph to contact the overhead wires when it is running. Common overhead wire systems usually consist of a series of copper or aluminum wires suspended from the top. These overhead wires are arranged along the tracks on which the locomotive runs. The overhead wires provide the electricity required by the locomotive. When the locomotive is running, the pantograph composed of a metal arm, spring and roller slider contacts the overhead wires, thereby transmitting electricity from the overhead wires to the locomotive's motor, and transmitting current to the locomotive through physical contact. This contact is usually a sliding contact, because the pantograph needs to maintain continuous contact with the overhead wires during the movement of the locomotive. After normal contact, the motor on the locomotive receives the current from the overhead wires, converts it into mechanical energy, and drives the locomotive to run on the track.

[0003] When the electric locomotive is running at the fork position, the fork is divided into two tracks, and the overhead lines suspended and fixed on the top of the tunnel are arranged synchronously according to the track lines to ensure power transmission. However, due to the spatial distance between the two overhead lines, there is often a height difference, too large a spacing, or too small a spacing between the two overhead lines, which causes abnormal contact between the pantograph and the overhead line, resulting in unstable connection between the pantograph and the overhead line. These situations not only affect the continuity of power supply transmission between the electric locomotive and the overhead line, but also easily cause physical damage to the pantograph or the overhead line. There is a problem that the power system is prone to instability when the electric locomotive is running at the fork, which in turn affects transportation efficiency and work progress and increases equipment maintenance costs. Therefore, it does not meet the existing needs, and an overhead line power transmission device at the fork is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide an overhead line power transmission device at a branch, by arranging a cross bar above two overhead lines, and arranging two conductors on both sides of the two overhead lines, the overhead lines and the conductors are connected to the cross bar through a fixing assembly, and the fixing assembly is connected to the cross bar through a fixing screw, thereby achieving the purpose of limiting the position of the overhead line, ensuring the stability of the connection between the pantograph and the overhead line, and solving the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an overhead line power transmission device at a branch, comprising an overhead line body and a fixing assembly, wherein the fixing assembly is located outside the overhead line body, a cross bar is provided above the fixing assembly, a conductor is provided on one side of the overhead line body, and at least two overhead line bodies and conductors are provided, both ends of the overhead line body extend obliquely upward, and at least two fixing assemblies are installed on the outside of a single overhead line body and a single conductor, wherein the fixing assembly comprises a splint, a fixing screw, a locking screw and a fixing disk, a fixing groove is provided at the lower end of the splint, and the overhead line body is located inside the fixing groove.

[0006] Preferably, a sleeve is provided inside the fixing plate, a triangular groove is provided inside the splint, the tip of the fixing screw extends downward and passes through the cross bar and the sleeve in sequence to the inside of the triangular groove, and the fixing screw is threadedly connected to the sleeve.

[0007] Preferably, a positioning block is provided at the upper end of the splint, the positioning block is a semicircular structure, a semicircular groove is provided inside the positioning block, and the fixing plate is located inside the groove.

[0008] Preferably, at least two clamping plates are provided inside a single fixing assembly, through slots and through holes are provided inside the clamping plates, a locking nut is provided at one end of the locking screw, and the locking screw is located inside the through hole.

[0009] Preferably, the overhead line body is located between two conductors, and the distance between the overhead line body and the conductors gradually increases from one end to the other.

[0010] Preferably, there are at least two cross bars, and at least four fixing components are provided under a single cross bar, and the four fixing components are all connected to the cross bar.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model arranges a cross bar above the two overhead line bodies, and arranges two conductors on both sides of the two overhead line bodies. After the overhead line bodies and the conductors are passed through the fixing assembly, the fixing assembly and the cross bar are connected by fixing screws, so that the position of the overhead line body is fixed, avoiding the situation that the two overhead line bodies have height differences, too large spacing and too small spacing, and ensuring that the power system can operate stably when the electric locomotive is at the fork; at the same time, both ends of the overhead line body extend obliquely upward, so that the pantograph enters the fork with a safe track entry arc, reducing the wear of the overhead line body and the pantograph, and improving the service life.

[0013] 2. The utility model arranges two clamping plates, locking screws, fixing plates and fixing screws inside the fixing assembly, passes the overhead line body between the two clamping plates, and places the fixing plate inside the positioning block at the upper end of the clamping plates. The two clamping plates are connected by locking screws and locking nuts, thereby connecting the clamping plates to the overhead line body. The fixing screws pass through the cross bar and extend into the sleeve inside the fixing plate, thereby connecting the cross bar to the clamping plates, thereby limiting the position of the overhead line body; the two fixing assemblies are respectively fixed on the cross bars at both ends of a single overhead line body, and the cross bars are connected to the conductors through the fixing assemblies, which can realize the precise positioning of the overhead line body, optimize the layout of the overhead line body, reduce the situation of poor contact between the pantograph and the overhead line body, reduce transportation interruptions and delays caused by problems with the overhead line body, and improve the operating efficiency of the electric locomotive. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall front view of the utility model;

[0015] Figure 2 This is a schematic diagram of the partial structure of the fixing component of the present utility model;

[0016] Figure 3 This is a schematic diagram of the local structure of the splint of the utility model;

[0017] Figure 4 This is a cross-sectional view of the splint of the present utility model.

[0018] In the figure: 1. Overhead line body; 101. Conductor; 2. Fixing assembly; 201. Clamp; 2011. Through slot; 2012. Fixing slot; 2013. Triangular slot; 2014. Positioning block; 2015. Through hole; 202. Fixing screw; 203. Locking screw; 2031. Locking nut; 204. Fixing plate; 2041. Sleeve; 3. Cross bar. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] To solve the problem of unstable power system when electric locomotives are running at turnouts, which affects transportation efficiency and operation progress and increases equipment maintenance costs, please refer to Figure 1-4The utility model provides an embodiment: an overhead line power transmission device at a branch, including an overhead line body 1, and also including a fixing component 2, the fixing component 2 is located outside the overhead line body 1, a cross bar 3 is arranged above the fixing component 2, a conductor 101 is arranged on one side of the overhead line body 1, the overhead line body 1 and the conductor 101 are each provided with at least two, and at least two fixing components 2 are installed on the outside of a single overhead line body 1 and a single conductor 101, the fixing component 2 includes a splint 201, a fixing screw 202, a locking screw 203 and a fixing disk 204, the lower end of the splint 201 is provided with a fixing groove 2012, and the overhead line body 1 is located inside the fixing groove 2012.

[0021] The cross bar 3 is located above the overhead line body 1, and the two conductors 101 are respectively located on both sides of the two overhead line bodies 1. After the overhead line body 1 and the conductors 101 pass through the fixing assembly 2, the fixing assembly 2 and the cross bar 3 are connected by fixing screws 202, so that the position of the overhead line body 1 is fixed, avoiding the height difference, excessive spacing and excessive spacing between the two overhead line bodies 1, and ensuring that the power system can operate stably when the electric locomotive is at the fork; at the same time, both ends of the overhead line body 1 extend obliquely upward, so that the pantograph enters the fork with a safe entry arc, reducing the wear of the overhead line body 1 and the pantograph, improving the service life of the equipment, and further reducing the maintenance and replacement costs.

[0022] A sleeve 2041 is provided inside the fixing disk 204, and a triangular groove 2013 is provided inside the splint 201. The tip of the fixing screw 202 extends downward and passes through the cross bar 3 and the sleeve 2041 to the inside of the triangular groove 2013 in sequence. The fixing screw 202 is threadedly connected to the sleeve 2041. A positioning block 2014 is provided at the upper end of the splint 201. The positioning block 2014 is a semicircular structure. A semicircular groove is provided inside the positioning block 2014. The fixing disk 204 is located inside the groove. At least two splints 201 are provided inside a single fixing component 2. A through groove 2011 and a through hole 2015 are provided inside the splint 201. A locking nut 2031 is provided at one end of the locking screw 203, and the locking screw 203 is located inside the through hole 2015.

[0023] After the personnel pass the overhead line body 1 between the two clamps 201 and place the fixing plate 204 inside the positioning block 2014, the two clamps 201 are connected by the locking screws 203 and the locking nuts 2031, thereby connecting the clamps 201 to the overhead line body 1, and the fixing screws 202 pass through the cross bar 3 and extend into the sleeve 2041, so that the cross bar 3 is connected to the clamps 201, thereby limiting the position of the overhead line body 1; the two fixing components 2 are respectively fixed on the cross bars 3 at both ends of a single overhead line body 1, and the cross bars 3 are connected to the conductor 101 through the fixing components 2, which can achieve precise positioning of the overhead line body 1, optimize the layout of the overhead line body 1, reduce the poor contact between the pantograph and the overhead line body 1, reduce transportation interruptions and delays caused by problems with the overhead line body 1, and further improve the operating efficiency of the electric locomotive.

[0024] Working principle: By setting a cross bar 3 above the two overhead line bodies 1, two conductors 101 are set on both sides of the two overhead line bodies 1, the overhead line body 1 and the conductors 101 are fixed on the cross bar 3 through the fixing component 2, and the fixing component 2 and the cross bar 3 are connected by the fixing screws 202, thereby achieving the purpose of limiting the position of the overhead line body 1, so that the overhead line body 1 and the pantograph are always in the best contact state, ensuring the stability of the connection between the pantograph and the overhead line body 1, and ensuring that the power system can operate stably when the electric locomotive is at the fork.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0026] 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 these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A power transmission device for an overhead line at a branch, comprising an overhead line body (1), characterized in that: The invention also includes a fixing assembly (2), wherein the fixing assembly (2) is located outside the overhead line body (1), a crossbar (3) is provided above the fixing assembly (2), a conductor (101) is provided on one side of the overhead line body (1), and at least two overhead line bodies (1) and conductors (101) are provided. Both ends of the overhead line body (1) extend obliquely upward, and at least two fixing assemblies (2) are installed outside a single overhead line body (1) and a single conductor (101). The fixing assembly (2) includes a clamping plate (201), a fixing screw (202), a locking screw (203) and a fixing disk (204), a fixing groove (2012) is provided at the lower end of the clamping plate (201), and the overhead line body (1) is located inside the fixing groove (2012).

2. The overhead line power transmission device at a branch according to claim 1, characterized in that: The interior of the fixing plate (204) is provided with a sleeve (2041), the interior of the clamping plate (201) is provided with a triangular groove (2013), the tip of the fixing screw (202) extends downward and passes through the cross bar (3) and the sleeve (2041) in sequence to the interior of the triangular groove (2013), and the fixing screw (202) is threadedly connected to the sleeve (2041).

3. The overhead line power transmission device at a branch according to claim 1, characterized in that: A positioning block (2014) is provided at the upper end of the clamping plate (201), the positioning block (2014) is a semicircular structure, a semicircular groove is provided inside the positioning block (2014), and the fixing plate (204) is located inside the groove.

4. The overhead line power transmission device at a branch according to claim 1, characterized in that: At least two clamping plates (201) are provided inside a single fixing assembly (2), a through slot (2011) and a through hole (2015) are provided inside the clamping plates (201), a locking nut (2031) is provided at one end of a locking screw (203), and the locking screw (203) is located inside the through hole (2015).

5. The overhead line power transmission device at a branch according to claim 1, characterized in that: The overhead line body (1) is located between two conductors (101), and the distance between the overhead line body (1) and the conductors (101) gradually increases from one end to the other.

6. The overhead line power transmission device at a branch track according to claim 1, characterized in that: At least two cross bars (3) are provided, and at least four fixing components (2) are provided below a single cross bar (3), and the four fixing components (2) are all connected to the cross bar (3).

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