High-voltage catenary busbar wire combination pressing device

Abstract

This utility model discloses a high-voltage contact wire busbar assembly pressing device, belonging to the field of contact wire laying training equipment for rail transit. The contact wire busbar assembly pressing device includes a training platform and a positioning frame detachably mounted on the training platform, and further includes a laying trolley slidably mounted on the busbar. This utility model utilizes the pulling force of a miniature winch to allow the laying trolley to move above the busbar opening. After the opening slot of the busbar expands, the contact wire is pressed into the opening slot of the busbar under the action of a pressure roller. Furthermore, when the miniature winch in the first adjustment unit drives the laying trolley to move to the end of the busbar, the contact wire can be continuously pressed by adjusting the stabilizing plate, achieving the embedding of the contact wire into the slot of the busbar device. This device can efficiently train practitioners in contact wire busbar embedding technology and the use of the laying trolley.

Description

Technical Field

[0001] This utility model relates to the technical field of training equipment for laying overhead contact lines in rail transit, and in particular to a high-voltage overhead contact line busbar conductor assembly pressing device. Background Technology

[0002] Against the backdrop of the rapid development of high-speed railways, the overhead contact system, as the core power supply facility of electrified railways, bears the strategic mission of providing continuous power to the pantographs of high-speed trains. Its zigzag overhead structure extends along the track, forming a dynamic power transmission network covering the entire line, directly determining the train's operational efficiency and safety. With the continuous growth of domestic travel demand, the railway talent training system urgently needs to be upgraded, especially in the urban rail transit industry. Some equipment has been in continuous operation for decades, and the contact wires embedded in the rigid busbars inside the tunnels have reached their wear limits, making them a crucial component requiring replacement and maintenance now and in the future. In particular, practical training for maintenance personnel working in subway power supply is essential. Through a 1:1 scale training platform, trainees can intuitively observe the collaborative working mechanism of the aluminum alloy busbars and contact wires, and understand the dynamic process of the contact wire embedding into the busbars. This provides skills support for maintenance personnel in the maintenance and upgrading of overhead contact system power supply equipment, improving the efficiency of rail transportation and the stability of power supply equipment. In the existing technology, copper alloy wires are pressed into the opening slot of the base. Because it is made of copper alloy, it has better conductivity and is more wear-resistant. After the copper alloy wires are embedded in the opening slot of the bus, the conductivity of the entire bus device is greatly enhanced. If only copper alloy is used for conductivity, its transmission capacity is about 1000A, but after it is embedded in the bus, its conductivity can reach more than 3500A.

[0003] However, traditional wire clamping devices are not convenient for pre-expanding the opening slots of the busbar, which may result in the contact wire not being able to fully contact the metal surface of the busbar, thereby increasing contact resistance and causing a decline in electrical performance. Utility Model Content

[0004] The purpose of this invention is to address the problems in the existing technology where practitioners are not proficient in operating wire laying trolleys, rigid busbar discharge lines, or the standard procedures for rigid busbar discharge lines. The invention proposes a high-voltage contact network busbar conductor assembly pressing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-voltage contact network busbar conductor assembly pressing device includes a training platform and a positioning frame and an adjusting and stabilizing plate detachably mounted on the training platform. It further includes: a movable seat slidably mounted on the busbar, wherein the movable seat is internally threaded with a bidirectional lead screw, and a tapered guide wheel is threaded onto the bidirectional lead screw. The tapered guide wheel is slidably connected within a forming groove of the busbar. The training platform is provided with a first adjusting part for driving the movable seat to move along the busbar; and a pressure roller mounted within the movable seat, wherein the pressure roller is provided with a second adjusting part for pressing the contact wire against it.

[0007] For positioning the busbar, preferably, a stabilizing plate is fixedly connected to the positioning frame, the busbar is snapped into the stabilizing plate, and the stabilizing plate has threaded holes.

[0008] To achieve continuous pressing and installation of the contact wire, preferably, the first adjustment unit includes a miniature winch, which is fixedly mounted on a positioning frame, and the movable seat is fixedly connected to a bracket connected to the miniature winch.

[0009] For adjusting the height of the pressure roller, preferably, the second adjustment part includes a first adjustment screw, which is threadedly connected to the wire feeding trolley. One end of the first adjustment screw passes through the wire feeding trolley and is rotatably connected to a limiting seat, and the pressure roller is rotatably connected within the limiting seat.

[0010] To improve the stability of the vertical movement of the pressure roller, a T-shaped rod is fixedly connected to the wire feeding trolley, and a sliding groove that cooperates with the T-shaped rod is provided on the moving seat.

[0011] To improve the stability of the lateral movement of the wire feeding trolley, preferably, the wire feeding trolley is threadedly connected to a second adjusting screw, one end of which passes through the wire feeding trolley and is rotatably connected to a guide wheel, the guide wheel being in contact with the busbar.

[0012] To limit the movement of the tapered guide wheel, preferably, a limiting rod is fixedly connected inside the movable seat, and the tapered guide wheel slides on the limiting rod.

[0013] To improve the expansion quality of the busbar opening slot, preferably, the number of tapered guide wheels is four.

[0014] Compared with the prior art, this utility model provides a high-voltage contact network busbar conductor assembly pressing device, which has the following beneficial effects:

[0015] 1. This high-voltage contact network busbar conductor assembly pressing device, through the setting of a first adjustment section, allows the miniature winch to pull one end of the steel cable while winding it up, moving the support and the wire-laying trolley on the busbar surface. By adjusting the wire-laying trolley, the device ensures that the contact wire is effectively embedded in the busbar groove. This device can demonstrate the entire process of the contact wire embedding into the busbar, showcasing the technical essentials of operating the wire-laying trolley; demonstrating the technical essentials of adjusting the direction of the contact wire pressing surface during the wire-laying process; and demonstrating the impact of the miniature winch's movement speed on the contact wire embedding into the busbar during the cable winding process, as the angle between the steel cable and the wire-laying trolley changes. This improves the efficiency of technical training for power supply maintenance personnel.

[0016] 2. The high-voltage contact network busbar conductor assembly pressing device adjusts the position of the guide wheel through the second adjusting screw, allowing the guide wheel to slide on the surface of the busbar, thereby improving the stability of the moving base.

[0017] 3. The high-voltage contact network busbar assembly pressing device can limit the conical guide wheel by setting a limiting rod, thereby improving the stability of the conical guide wheel's movement.

[0018] All parts not mentioned in this device are the same as or can be implemented using existing technology. This utility model sets up conical guide wheels. Since the conical guide wheels are closely fitted into the forming groove of the busbar, when the bidirectional screw drives the two conical guide wheels to move in opposite directions, the conical guide wheels can pull the opening end of the busbar to move, causing the opening groove to expand. Then, under the action of the pressure roller, the contact wire can be pressed into the opening groove of the busbar. Furthermore, when the first adjustment part drives the moving seat to move, the continuous pressing of the contact wire can be achieved. Attached Figure Description

[0019] Figure 1 This is an isometric schematic diagram of the structure of a high-voltage contact network busbar conductor assembly pressing device proposed in this utility model;

[0020] Figure 2 This is an isometric schematic diagram of the movable seat structure of a high-voltage contact network busbar conductor assembly pressing device proposed in this utility model;

[0021] Figure 3 This is a cross-sectional schematic diagram of the busbar structure of a high-voltage contact network busbar conductor assembly pressing device proposed in this utility model;

[0022] Figure 4 This is an isometric schematic diagram of the conical guide wheel structure of a high-voltage contact network busbar conductor assembly pressing device proposed in this utility model;

[0023] Figure 5This is an isometric schematic diagram of the guide wheel structure of a high-voltage contact network busbar conductor assembly pressing device proposed in this utility model;

[0024] Figure 6 This is an isometric schematic diagram of the positioning frame structure of the high-voltage contact network busbar conductor assembly pressing device proposed in this utility model;

[0025] Figure 7 This is an isometric schematic diagram of the first adjustment section of a high-voltage contact network busbar conductor assembly pressing device proposed in this utility model.

[0026] In the diagram: 1. Training platform; 2. Positioning frame; 3. Stabilizing plate; 4. Busbar; 5. Contact wire; 6. Wire feeding trolley; 7. Two-way lead screw; 8. Conical guide wheel; 9. Pressure roller; 10. Miniature winch; 11. Support; 12. First adjusting screw; 13. Limit seat; 14. T-shaped rod; 15. Slide groove; 16. Second adjusting screw; 17. Guide wheel; 18. Limit rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Example:

[0030] Reference Figures 1-7A high-voltage contact network busbar conductor assembly pressing device includes a training platform 1 and two positioning frames 2 fixedly mounted on the training platform 1 by bolts. Each positioning frame 2 has a stabilizing plate 3 fixedly connected to it. The stabilizing plate 3 has through holes to fix the busbar 4 according to its length, ensuring the stability of the entire pressing system. The busbar 4 is snapped into the stabilizing plate 3, and the contact wire 5 is placed on the busbar 4. The stabilizing plate 3 has threaded holes; when the threaded bolts are tightened into the threaded holes, the busbar 4 can be pressed and positioned. A wire feeding trolley 6 is mounted on the busbar 4. The wire feeding trolley 6 is internally threaded with two bidirectional lead screws 7. Two conical guide wheels 8 are threaded onto the bidirectional lead screws 7. The outer surface of the conical guide wheels 8 is slidably connected in the forming groove of the busbar 4. When the bidirectional lead screws 7 rotate, the conical guide wheels 8 are used to pre-expand the opening groove of the busbar 4. The training platform 1 is provided with a first adjustment part for driving the wire feeding trolley 6 to move along the busbar 4. A pressure roller 9 is installed in the wire feeding trolley 6. The pressure roller 9 is provided with a second adjustment part for pressing the contact wire 5 against it.

[0031] Specifically, by setting the conical guide wheel 8, since the conical guide wheel 8 is tightly fitted into the forming groove of the busbar 4, when the bidirectional screw 7 drives the two conical guide wheels 8 to move in opposite directions, the conical guide wheel 8 can pull the open end of the busbar 4 to move, causing its opening groove to expand. Then, under the action of the pressure roller 9, the contact line 5 can be pressed into the opening groove of the busbar 4. Furthermore, when the first adjustment part drives the moving seat 6 to move, the contact line 5 can be continuously pressed together.

[0032] The first adjustment unit includes a miniature winch 10 fixedly mounted on a positioning frame 2. The miniature winch 10 can be driven by either a motor or a crank handle. Figure 7 It uses a handle-driven system, but can also be driven by a motor if needed.

[0033] A bracket 11, which is connected to the miniature winch 10, is fixedly connected to the movable base 6. The side of the bracket 11 away from the movable base 6 is fixedly connected to the steel cable of the miniature winch 10.

[0034] Specifically, by setting up a first adjustment section, when the miniature winch 10 winds up the steel cable, one end of the steel cable pulls the bracket 11 and the movable seat 6 to move on the surface of the busbar 4, which can improve the pressing efficiency of the contact wire 5.

[0035] The second adjustment part includes a first adjustment screw 12 threadedly connected to the wire feeding trolley 6. One end of the first adjustment screw 12 passes through the wire feeding trolley 6 and is rotatably connected to a limit seat 13. The pressure roller 9 is rotatably connected inside the limit seat 13. A T-shaped rod 14 is fixedly connected to the limit seat 13. A groove 15 that cooperates with the T-shaped rod 14 is provided on the wire feeding trolley 6. The T-shaped rod 14 is slidably connected inside the groove 15.

[0036] Specifically, by setting a second adjustment part, the pressure roller 9 can be vertically adjusted so that the pressure roller 9 can squeeze the contact line 5 into the opening groove of the busbar 4, and the stability of the vertical adjustment of the pressure roller 9 can be improved by using the T-shaped rod 14 and the sliding groove 15.

[0037] The wire feeding trolley 6 is threadedly connected to a second adjusting screw 16. One end of the second adjusting screw 16 passes through the wire feeding trolley 6 and is rotatably connected to a guide wheel 17. When the wire feeding trolley 6 moves on the surface of the busbar 4, the guide wheel 17 slides on the surface of the busbar 4.

[0038] Specifically, the position of the guide wheel 17 is adjusted by the second adjusting screw 16, so that the guide wheel 17 can slide on the surface of the busbar 4, thereby improving the stability of the wire feeding trolley 6.

[0039] The wire feeding trolley 6 is fixedly connected to a limit rod 18, and the tapered guide wheel 8 slides on the limit rod 18.

[0040] Specifically, by setting the limit rod 18, the conical guide wheel 8 can be limited, thereby improving the stability of the movement of the conical guide wheel 8.

[0041] When pressing and installing the contact wire 5, the worker slides the wire feeding trolley 6 onto the busbar 4, and then uses an external tool to rotate the bidirectional screw 7. When the bidirectional screw 7 rotates, it drives the two conical guide wheels 8 to move in opposite directions. When the two conical guide wheels 8 move in opposite directions, they pull the opening end of the busbar 4 to move in opposite directions, causing the opening groove of the busbar 4 to expand. After the opening groove of the busbar 4 expands, the worker places the contact wire 5 on the upper end of the opening groove and uses an external tool to rotate the first adjusting screw 12. When the first adjusting screw 12 rotates inside the wire feeding trolley 6, it drives the limiting seat 13 and the pressure roller 9 to move downward. The downward pressure of the pressure roller 9 is used to squeeze the contact wire 5 into the opening groove of the busbar 4.

[0042] During the continuous pressing and installation of the contact wire 5, the staff uses an external control switch to start the miniature winch 10. The miniature winch 10 winds up the steel cable, causing it to pull the support 11 to move. When the support 11 moves, it pulls the cable-laying trolley 6 to slide laterally on the surface of the busbar 4. When the cable-laying trolley 6 moves laterally, the tapered guide wheel 8 gradually expands the opening groove of the busbar 4, while the pressure wheel 9 gradually squeezes the contact wire 5, thus completing the pressing and installation of the contact wire 5.

[0043] Furthermore, when the tapered guide wheel 8 releases the expansion of the opening slot of the busbar 4, the opening slot of the busbar 4 automatically tightens under the action of elasticity, thereby clamping the contact line 5.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-voltage catenary busbar conductor assembly pressing device, comprising a training table (1) and a positioning frame (2) and an adjusting and stabilizing plate detachably installed on the training table (1), characterized in that, Also includes: The cable-laying trolley (6) is slidably mounted on the busbar (4). The wire feeding trolley (6) is internally threaded with a bidirectional lead screw (7), and the bidirectional lead screw (7) is threaded with a tapered guide wheel (8). The tapered guide wheel (8) is slidably connected in the forming groove of the busbar (4). The training platform (1) is provided with a first adjustment part for driving the wire feeding trolley (6) to move along the busbar (4). The pressure roller (9) is installed inside the wire feeding trolley (6). The pressure roller (9) is provided with a second adjustment part for pressing the contact line (5) against it.

2. A high-voltage catenary conductor rail assembly press-in device according to claim 1, characterized in that The positioning frame (2) is fixedly connected to a stabilizing plate (3), the busbar (4) is snapped into the stabilizing plate (3), and the stabilizing plate (3) has a threaded hole.

3. A high-voltage catenary conductor assembly press-in device according to claim 1, characterized in that The first adjustment unit includes a miniature winch (10), which is fixedly mounted on a positioning frame (2), and the wire feeding trolley (6) is fixedly connected to a bracket (11) connected to the miniature winch (10).

4. The high-voltage catenary conductor assembly press-in device according to claim 1, characterized in that The second adjustment part includes a first adjustment screw (12), which is threadedly connected to the wire feeding trolley (6). One end of the first adjustment screw (12) passes through the wire feeding trolley (6) and is rotatably connected to a limit seat (13). The pressure roller (9) is rotatably connected inside the limit seat (13).

5. A high-voltage catenary conductor rail assembly press-in device according to claim 4, characterized in that A T-shaped rod (14) is fixedly connected to the limiting seat (13), and a groove (15) that cooperates with the T-shaped rod (14) is provided on the wire feeding trolley (6).

6. A high-voltage catenary conductor assembly press-in device according to claim 1, characterized in that The wire feeding trolley (6) is threadedly connected to a second adjusting screw (16). One end of the second adjusting screw (16) passes through the wire feeding trolley (6) and is rotatably connected to a guide wheel (17). The guide wheel (17) is in contact with the busbar (4).

7. A high-voltage catenary conductor assembly press-in device according to claim 1, characterized in that The wire feeding trolley (6) is fixedly connected to a limiting rod (18), and the tapered guide wheel (8) slides on the limiting rod (18).

8. A high-voltage catenary conductor assembly press-in device according to claim 1, characterized in that The number of the conical guide wheels (8) is four.

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