A contact network vibration test field wire clamp device

Abstract

The utility model relates to a contact net vibration test field wire clamp device, include: stand, vertical arrangement, crossbeam, horizontal arrangement, its one end is connected with the stand, and under the action of vertical adjusting structure, crossbeam can be installed in the position of different height of stand, clamping jaw, set up on the crossbeam, and under the action of lateral adjusting structure, clamping jaw can be installed in the different position of crossbeam horizontal direction, clamping plate, symmetrical, detachable setting in the clamping end of clamping jaw, the clamping plate is provided with the relative arrangement of clamping groove, is used for clamping fixed contact net wire. Through setting up the crossbeam that can be adjusted vertically along the stand and the clamping jaw that can be adjusted laterally along the crossbeam, constitute a two -dimensional adjusting system. The structure makes the clamping device can accurately position and hold the contact net wire in the arbitrary specified position in the test field space, effectively overcomeed the shortcoming that the installation precision is poor, the regulating difficulty of present temporary support mode, laid the foundation for the high fidelity vibration test.

Description

Technical Field

[0001] This utility model relates to the field of high-speed railway catenary technology, specifically a catenary vibration test field wire clamping device. Background Technology

[0002] The overhead contact system of high-speed railways is a key piece of equipment for transmitting electrical energy to electric locomotives, and its reliability directly affects the operational safety and current collection quality of trains. The overhead contact system vibration test track, as a core facility for verifying the performance of the overhead contact system, accurately simulates the complex vibration environment generated by trains in actual operation. This track can reproduce the dynamic interaction between the pantograph and the contact wire, thereby replicating the system vibration response under different operating speeds, weather conditions, and track conditions. Through this, key performance indicators such as the structural strength, fatigue life, elastic uniformity, and current collection quality of the overhead contact system can be comprehensively tested and evaluated.

[0003] In actual on-site construction of high-speed railways, the laying of overhead contact line cables is accomplished using work vehicles such as cable laying vehicles and cable stringing vehicles. However, this construction method is difficult to apply directly to indoor or dedicated test sites with limited space and controlled environment.

[0004] Currently, there is a lack of a catenary overhead line-laying device specifically designed for vibration test sites. Existing technologies either rely on large construction machinery unsuitable for the test site environment or employ temporary and rudimentary support and fixing methods. The latter often suffers from poor installation accuracy, difficulty in adjustment, insufficient stability, and potential interference with the accuracy of vibration data. Therefore, developing a catenary overhead line-laying device suitable for vibration test sites, featuring lightweight design, flexible installation, and fine adjustment capabilities, has become an urgent need for accurately and efficiently conducting vibration tests on catenary systems, thereby promoting the development of high-speed railway technology. Utility Model Content

[0005] To address the technical problems in the background art, this utility model discloses a wire clamping device for a contact wire vibration test field.

[0006] This utility model provides a wire clamping device for a contact wire vibration test field, comprising: The columns are arranged vertically. The horizontal beam is arranged horizontally, with one end connected to the column. With the help of the vertical adjustment structure, the horizontal beam can be installed at different heights of the column. The gripper is set on the crossbeam, and under the action of the lateral adjustment structure, the gripper can be installed at different positions in the horizontal direction of the crossbeam; The clamping plates are symmetrically and detachably installed at the clamping ends of the jaws. The clamping plates are provided with oppositely arranged clamping grooves for clamping and fixing the contact network wire.

[0007] Furthermore, both the columns and beams are made of square tubing; The vertical adjustment structure includes multiple vertical adjustment holes arranged at vertical intervals on the column; The vertical adjustment holes extend horizontally and run through both sides of the column; The crossbeam is inserted into the vertical adjustment hole.

[0008] Furthermore, two vertically extending fixing holes are provided at one end of the crossbeam; The fixing holes are located on both sides of the column; The fixing hole is used to insert the fixing pin.

[0009] Furthermore, the lateral adjustment structure includes multiple lateral adjustment holes arranged at intervals in the horizontal direction on the crossbeam; The horizontal adjustment holes extend vertically and run through the upper and lower sides of the crossbeam; The gripper consists of a fixed gripper and a movable gripper; One end of the fixed claw is fixedly connected to the lateral adjustment hole; The movable claw and the fixed claw are hinged together.

[0010] Furthermore, the grippers are located at the upper end of the crossbeam.

[0011] Furthermore, the lower ends of the fixed claw and the movable claw are fixedly connected by fasteners, and the upper end is the clamping end; the connecting bolt passes through the clamping plate and is threadedly connected to the upper end of the fixed claw or the movable claw.

[0012] Furthermore, connecting plates are provided on the opposite sides of the lower ends of both the fixed claw and the movable claw; The connecting plates are fixed together by fasteners.

[0013] Furthermore, the connecting plate is provided with two elongated holes arranged symmetrically in the horizontal direction; The length of the oblong hole extends vertically. The U-bolt is inserted into the elongated hole, and the end is locked in place by a threaded nut.

[0014] The beneficial effects of this utility model are: 1. A two-dimensional adjustment system is constructed by setting up a horizontal beam that can be adjusted vertically along the column and a clamp that can be adjusted horizontally along the horizontal beam. This structure enables the clamping device to accurately position and hold the contact wire (catering wire or contact cable) at any designated position within the test field space, effectively overcoming the shortcomings of poor installation accuracy and difficult adjustment of existing temporary support methods, and laying the foundation for high-fidelity vibration testing.

[0015] 2. The clamping groove is designed to achieve clamping and limiting, and can stably clamp and fix the contact wire; moreover, the clamping plate can be detachably installed on the clamping end of the jaw. By replacing the clamping plate with different clamping groove sizes, the jaw can clamp contact wires of different diameters, thereby improving the applicability of this utility model. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural diagram of the gripper; In the diagram: 1. Column; 2. Horizontal beam; 3. Clamping claw; 4. Clamping plate; 5. Connecting bolt; 6. Connecting plate; 7. U-bolt; 8. Nut; 11. Vertical adjustment hole; 21. Fixing hole; 22. Horizontal adjustment hole; 31. Fixing claw; 32. Movable claw; 33. Insertion part; 41. Clamping groove; 61. Oblong hole. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0019] like Figure 1 As shown, this utility model discloses a wire clamping device for a contact wire vibration test field, including a vertically arranged column 1 and a horizontally arranged crossbeam 2, both of which are square tubes. The column 1 is vertically arranged, and its top position is provided with multiple vertically evenly spaced vertical adjustment holes 11, which are square holes and penetrate through the left and right sides of the column 1. The upper and lower end faces of the square holes are horizontal. The left end of the crossbeam 2 is inserted into the vertical adjustment hole 11, and due to the square hole structure of the vertical adjustment hole 11, the position of the crossbeam 2 is stable and will not rotate.

[0020] Two spaced-apart, vertically penetrating fixing holes 21 are provided on the left side of the crossbeam 2. The fixing holes 21 are located on the left and right sides of the column 1, close to the column 1. The fixing holes 21 are used to insert fixing pins to define the position of the crossbeam 2. The height of the crossbeam 2 can be adjusted by changing the vertical adjustment hole 11 connected to it.

[0021] Multiple lateral adjustment holes 22 are provided at the right end of the crossbeam 2. The lateral adjustment holes 22 are square holes that run vertically through the beam and are evenly spaced from the right end of the crossbeam 2 to the left. The clamps 3 are inserted into the lateral adjustment holes 22 and are fixedly connected to the crossbeam 2.

[0022] like Figure 2As shown, the gripper 3 includes a fixed gripper 31 and a movable gripper 32. One end of the fixed gripper 31 has a square insertion part 33 that inserts into the horizontal adjustment hole 22. The middle of the movable gripper 32 is hinged to the middle of the fixed gripper 31, thus forming an "X" shape. If the insertion part 33 is inserted into the horizontal adjustment hole 22 from bottom to top, a fastening structure needs to be provided at the upper end of the insertion part 33 to prevent the gripper 3 from falling off the crossbeam 2, which would make the installation structure of the gripper 3 more complex. Therefore, by placing the gripper 3 at the upper end of the crossbeam 2 and inserting the insertion part 33 into the horizontal adjustment hole 22 from top to bottom, the gripper 3 can be fixed by utilizing its own weight and the friction between the insertion part 33 and the horizontal adjustment hole 22. This method is not only simple in structure but also convenient in operation. By connecting the gripper 3 to different horizontal adjustment holes 22, the horizontal position of the gripper 3 can be adjusted.

[0023] The upper end of the gripper 3 is the clamping end, used to clamp and fix the contact wire. Symmetrically arranged clamping plates 4 are installed on the upper ends of the fixed gripper 31 and the movable gripper 32. The clamping plates 4 have recessed, arc-shaped clamping grooves 41. The contact wire is clamped within the clamping grooves 41, achieving clamping and fixing, and also limiting the installation of the contact wire. Connecting bolts 5 pass through the clamping plates 4 and are threadedly connected to the fixed gripper 31 or the movable gripper 32. This allows for detachable connection of the clamping plates 4. When clamping contact wires of different diameters, only clamping plates 4 with different sized clamping grooves 41 need to be replaced.

[0024] To ensure the clamping end of the gripper 3 secures the contact wire, the lower ends of the fixed gripper 31 and the movable gripper 32 are connected and fixed by fasteners. Specifically, connecting plates 6 are installed on opposite sides of the lower ends of the fixed gripper 31 and the movable gripper 32, and are fixed by welding. Each connecting plate 6 has two symmetrically arranged elongated holes 61, symmetrically positioned on both sides of the fixed gripper 31 or the movable gripper 32. The two arms of the U-bolt 7 pass sequentially through the elongated holes 61 on the connecting plate 6 of the fixed gripper 31 and the connecting plate 6 of the movable gripper 32, and are connected and fixed by threaded nuts 8. Since the connecting plate 6 on the movable gripper 32 is inclined when the gripper 3 clamps and fixes the contact wire, the elongated holes 61 provide sufficient installation space for the U-bolt 7, facilitating the connection and fixation of the fixed gripper 31 and the movable gripper 32.

[0025] The advantages of this embodiment are: 1. By setting a horizontal beam 2 that can be adjusted vertically along the column 1 and a clamp 3 that can be adjusted horizontally along the horizontal beam 2, a two-dimensional adjustment system is formed. This structure allows the clamping device to accurately position and clamp the contact wire (catering wire or contact cable) at any designated position in the test field space, effectively overcoming the shortcomings of poor installation accuracy and difficulty in adjustment of existing temporary support methods, laying the foundation for high-fidelity vibration testing. 2. The clamping groove 41 is set to achieve clamping limit, which can stably clamp and fix the contact wire; moreover, the clamping plate 4 can be detachably installed on the clamping end of the clamp 3. By replacing the clamping plate 4 with different clamping groove 41 sizes, the clamp 3 can clamp contact wires of different diameters, thereby improving the applicability of this utility model.

[0026] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A wire clamping device for a contact wire vibration test field, characterized in that, include: The columns (1) are arranged vertically; The crossbeam (2) is arranged horizontally, with one end connected to the column (1). Under the action of the vertical adjustment structure, the crossbeam (2) can be installed at different heights of the column (1). The gripper (3) is set on the crossbeam (2), and under the action of the transverse adjustment structure, the gripper (3) can be installed at different positions in the horizontal direction of the crossbeam (2); The clamping plate (4) is symmetrically and detachably disposed at the clamping end of the clamping claw (3). The clamping plate (4) is provided with oppositely arranged clamping grooves (41) for clamping and fixing the contact wire.

2. The contact wire clamping device for a vibration test field according to claim 1, characterized in that: Both the column (1) and the beam (2) are square tubes; The vertical adjustment structure includes multiple vertical adjustment holes (11) arranged vertically at intervals on the column (1). The vertical adjustment hole (11) extends horizontally and passes through the left and right sides of the column (1); The crossbeam (2) is inserted into the vertical adjustment hole (11).

3. The contact wire clamping device for a vibration test field according to claim 2, characterized in that: Two vertically extending fixing holes (21) are provided at one end of the crossbeam (2); The fixing holes (21) are located on both sides of the column (1); The fixing hole (21) is used to insert the fixing pin.

4. The contact wire clamping device for a vibration test field according to claim 1, characterized in that: The lateral adjustment structure includes multiple lateral adjustment holes (22) arranged at intervals in the horizontal direction on the crossbeam (2); The horizontal adjustment hole (22) extends vertically and passes through the upper and lower sides of the crossbeam (2); The gripper (3) includes a fixed gripper (31) and a movable gripper (32); One end of the fixed claw (31) is fixedly connected to the transverse adjustment hole (22); The movable claw (32) is hinged to the fixed claw (31).

5. The contact wire clamping device for a vibration test field according to claim 4, characterized in that: The gripper (3) is located at the upper end of the crossbeam (2).

6. The contact wire clamping device for a vibration test field according to claim 5, characterized in that: The lower ends of the fixed claw (31) and the movable claw (32) are fixedly connected by fasteners, and the upper ends are clamping ends; the connecting bolt (5) passes through the clamping plate (4) and is threadedly connected to the upper end of the fixed claw (31) or the movable claw (32).

7. The contact wire clamping device for a vibration test field according to claim 6, characterized in that: The fixed claw (31) and the movable claw (32) are both provided with connecting plates (6) on opposite sides at their lower ends; The connecting plates (6) are connected and fixed together by fasteners.

8. The contact wire clamping device for a vibration test field according to claim 7, characterized in that: The connecting plate (6) is provided with two elongated holes (61) arranged symmetrically in the horizontal direction. The elongated hole (61) extends vertically in the length direction; The U-bolt (7) is inserted into the elongated hole (61), and the end is locked and fixed by the nut (8) connected by a thread.

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