Contact wire connector wire clamp structure of section insulator of contact net

Abstract

The utility model discloses an overhead line system section insulator contact line joint wire clamp structure, which belongs to the field of railway overhead line systems and comprises two clamp plates arranged separately, a first structural surface and a second structural surface which face each other are arranged on the upper portion and the lower portion of the inner side of each clamp plate respectively, and after the two clamp plates are assembled, the first structural surfaces define a through wire groove. The second structural surface forms a clamping part; and the first structural surface and the second structural surface extend to one end part of the two clamping plates, so that the upper and lower wire grooves are communicated with the clamping part in a smooth transition manner, and the contact wire is bent to the fitting degree of the wire clamp so as to be mounted in the upper and lower wire grooves of the wire clamp in a smooth transition manner.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of railway contact network, and particularly relates to a contact wire joint clamp structure of sectional insulator of contact network. BACKGROUND

[0002] The sectional insulator is an insulating device used when the contact network is electrically segmented. Under normal circumstances, the pantograph is charged and slides through, and when a certain contact network section is under maintenance or construction and power-off, the disconnector at the sectional insulator is opened to disconnect the power supply of the contact network, and the other part can be normally powered. The sectional insulator is installed between the up and down sections of the contact network in the same section to realize electrical segmentation of the up and down contact networks and mechanical non-segmentation, thereby ensuring that the car body of the station side track can be smoothly transferred to another line, so that the station can be used as a passenger train starting station. When the contact network needs to be V-shaped for maintenance, the related circuit breaker and disconnector can be disconnected, and the electrical isolation of another line is realized through the sectional insulator, thereby improving the flexibility and reliability of the operation and maintenance of the contact network.

[0003] The sectional insulator is an electrical device with arc extinguishing and arc resistance ability, which is suitable for single-line or double-line electrified railways. Especially when used in heavily polluted sections on high-speed lines, it can show its superiority.

[0004] As shown in Figures 1-2 The sectional insulator structure generally includes an insulator body 01, a leveling sling assembly 02, an arc leading structure, contact wire joint clamps 10 at both ends, and a body and clamp connection assembly. The contact wire joint clamp is usually provided with two sections of contact wire, and the main contact wire 011 and the auxiliary wire 012 are firmly engaged by the fastening of the clamp plate bolt, so that the contact wire cannot escape from the joint clamp. The lower side of the contact wire joint clamp is the main contact wire 011, and the upper side is the auxiliary wire 012. The parallel part of the main contact wire 011 and the auxiliary wire 012 is provided with a leveling sling assembly, and the contact wire joint clamp 10 is locked in the clamping groove of the sectional insulator body 01 through the clamp connecting rod. The main contact wire on the lower side is smoothly transitioned with the sectional insulator body through the leveling bolt. However, the point of transition of the main contact wire 011 at the contact wire joint clamp 10 and the sectional insulator 01 is the weak link of the electrical device. The vibration caused by long-term train passing, maintenance over period or maintenance failure will cause the main contact wire 011 bearing a large tension to fall off from the contact wire joint clamp 10, and the sectional insulator loses the balance and disintegrates, which seriously affects the power supply safety and the railway transportation order, causes transportation interruption, and thus causes great economic loss and negative impact. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems, the utility model provides a contact wire joint clamp structure of a section insulator of a catenary, which adopts an arc-shaped through design of a side groove of a connecting rod of the contact wire joint clamp, so that the main contact wire can be turned over to the position of an auxiliary wire at the upper part of the contact wire joint clamp along the connecting rod side of the contact wire joint clamp in an arc-shaped manner, thereby replacing the installation of the auxiliary wire and forming a never-falling clamp.

[0006] The technical scheme is as follows:

[0007] A contact wire joint clamp structure of a section insulator of a catenary, characterized in that two clamping plates are separately arranged, first structure surfaces and second structure surfaces are arranged on the inner sides of the two clamping plates in a facing manner, and the first structure surfaces enclose through grooves after the two clamping plates are assembled, and the second structure surfaces form clamping parts.

[0008] The first structure surfaces and the second structure surfaces both extend to one end of the two clamping plates, so that the two grooves and the clamping parts are smoothly connected, and the contact wire is smoothly installed in the two grooves of the clamp after being bent to the extent of fitting the clamp.

[0009] Further, a plurality of bolt locking holes are arranged on the two clamping plates in a corresponding manner.

[0010] Further, a connecting hole for connecting the section insulator is arranged on one end of the section insulator body, and a connecting rod is locked in the connecting hole.

[0011] Further, locking teeth are arranged on the other end of the clamping part.

[0012] Beneficial effects:

[0013] 1. The utility model provides a contact wire joint clamp structure of a section insulator of a catenary, which adopts an arc-shaped through design of a side groove of a connecting rod of the contact wire joint clamp, so that the main contact wire can be turned over to the position of an auxiliary wire at the upper part of the contact wire joint clamp along the connecting rod side of the contact wire joint clamp in an arc-shaped manner, thereby replacing the installation of the auxiliary wire and forming a never-falling clamp.

[0014] 2、The contact wire joint clamp of the application is balanced by the occlusal force on the lower side, the occlusal force on the upper side, the inherent stress of parallel back, the pressure of the leveling bolt and the tension of the main contact wire, so as to ensure a tension by four forces, thereby forming a contact wire joint clamp with higher safety factor.

[0015] 3、Compared with the prior art, the installation of the contact wire joint clamp of the application combines the original main contact wire and auxiliary wire together, and connects the contact wire with the joint clamp to form a whole, and the original joint clamp structure does not have a wire slot 21 and a locking tooth 32 at the end head 03, the wire slot, the clamping part and the contact wire form a U-shaped bending assembly through the through design, so that the occlusal force is more firm, and the fulcrum of force balance is reduced, and the horizontal shaking and swinging are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a whole schematic view of the sectional insulator of the overhead contact system of the application;

[0017] Figure 2 is a schematic view of the joint clamp structure in the background technology of the application;

[0018] Figure 3 is a front view of the contact wire joint clamp structure of the sectional insulator of the overhead contact system of the application;

[0019] Figure 4 is a sectional view along the line A-A of the contact wire joint clamp structure of the sectional insulator of the overhead contact system of the application;

[0020] Figure 5 is a schematic view of the clamp plate of the contact wire joint clamp structure of the sectional insulator of the overhead contact system of the application.

[0021] In the figure: 1-clamp plate; 11-locking hole; 12-connection hole; 2-first structure surface; 21-wire slot; 3-second structure surface; 31-clamping part; 32-locking tooth. DETAILED DESCRIPTION

[0022] The technical scheme of the application will be further described below in combination with the drawings and through specific embodiments.

[0023] Embodiment 1

[0024] As Figures 3-5As shown, the contact wire joint clamp structure of the sectional insulator of the overhead contact system in the embodiment comprises two clamping plates 1 arranged separately, and a first structure surface 2 and a second structure surface 3 are arranged on the inner sides of the two clamping plates 1 in opposite directions, the first structure surfaces 2 form through line grooves 21 when the two clamping plates 1 are assembled, and the second structure surfaces form clamping portions 31; the first structure surfaces 2 and the second structure surfaces 3 extend to the same end of the two clamping plates 1 respectively, so that the upper and lower line grooves 21 and the clamping portions 31 are smoothly connected, and the contact wire is bent to the extent of fitting the clamp and is smoothly installed in the upper and lower line grooves 21 of the clamp.

[0025] That is, the clamping plates 1 of the two separate clamps are parallel due to the installation of the main contact wire and the auxiliary contact wire, and the main contact wire bearing a large tension force is still likely to fall off from the contact wire joint clamp, the sectional insulator loses the balance and disintegrates, which seriously affects the power supply safety and the railway transportation order and causes the risk of transportation interruption. In the embodiment, the through design of the line groove and the clamping portion is adopted, so that the main contact wire and the auxiliary contact wire are not required to be installed in the upper and lower line grooves respectively, and the wire head can be directly clamped in the line groove, which ensures that the wire head is always in the same force balance state after falling off and reduces the influence of the tension force of the whole overhead contact system on the clamp, thereby ensuring the overall safety of the sectional insulator of the overhead contact system.

[0026] In the embodiment, a plurality of bolt locking holes 11 are arranged on the upper and lower clamping plates 1 respectively.

[0027] In the embodiment, a connecting hole 12 for connecting the sectional insulator is arranged at one end of the main body of the sectional insulator, and a connecting rod is locked in the connecting hole. The connecting rod is used for connecting the main body of the insulator, and due to the through design of the clamping plate of the clamp, the connecting hole can be moved backward to increase the strength surface to overcome the transverse tension force.

[0028] In the embodiment, a locking tooth 32 is arranged on the other end of the clamping portion 31.

[0029] The technical principle of the utility model is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the utility model, and cannot be interpreted as limiting the protection scope of the utility model in any way. Based on the explanation herein, other specific embodiments of the utility model can be conceived by those skilled in the art without creative labor, and these embodiments will fall within the protection scope of the utility model.

Claims

1. A catenary section insulator contact wire joint clamp structure, characterized in that, The two clamping plates are separately arranged, and each of the two clamping plates is provided with a first structure surface and a second structure surface on the inner side thereof. The first structure surface and the second structure surface of each of the two clamping plates extend to one end of the clamping plate, so that the upper and lower line grooves and the clamping part are smoothly connected.

2. A catenary segment insulator contact wire joint clamp structure according to claim 1, characterized in that, A plurality of bolt locking holes are arranged on the two clamping plates.

3. A catenary segment insulator contact wire joint clamp structure according to claim 2, characterized in that, A connecting hole for connecting the segmented insulator is arranged on one end of the main body of the segmented insulator, and a connecting rod is locked in the connecting hole.

4. The overhead line contact wire joint clamp structure of claim 3, wherein Locking teeth are arranged on the other end of the clamping part.

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