Traction power supply equipment maintenance device
By designing a maintenance device for traction power supply equipment with a wire clamp and length adjustment components, a single person can quickly replace the dropper, solving the problem of time-consuming and labor-intensive replacement of traditional droppers, improving work efficiency and saving labor costs.
Patent Information
- Application Number
- CN202520296429.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-02-24
AI Technical Summary
Replacing a traditional dropper requires two workers, which is time-consuming, labor-intensive, and increases labor costs.
Design a maintenance device that includes two wire clamps and a length adjustment component. The distance between the contact wire and the catenary wire is adjusted by a rectangular rotating frame and a threaded rod. Synchronous movement is achieved by using a traction rope, allowing a single person to complete the replacement of the dropper.
It improves the efficiency of changing droppers, saves labor costs, simplifies the operation process, and reduces reliance on other workers.
Smart Images
Figure CN223686394U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of power facility maintenance, in particular to a traction power supply equipment maintenance device. BACKGROUND
[0002] A dropper is a key component in a railway overhead line system, mainly used for connecting a load-bearing cable and a contact wire, adjusting the height of the contact wire to ensure that a train pantograph stably takes current. The quality of the dropper directly affects the pantograph-catenary current collection performance and the service life of equipment. One key maintenance item in the daily maintenance of the overhead line system is to check and maintain the use state of the dropper. When maintenance personnel find safety hazards such as broken wires and broken strands of the dropper, new droppers need to be timely replaced in batches.
[0003] When the traditional dropper is replaced, a worker needs to first lift the contact wire or press down the load-bearing cable in the air, and then another worker completes the replacement of the new and old droppers after the dropper between the contact wire and the load-bearing cable is not stressed. This replacement method not only is time-consuming and labor-intensive, but also increases the labor cost of maintenance. CONTENT OF THE INVENTION
[0004] The application provides a traction power supply equipment maintenance device which can save labor cost and improve work efficiency when replacing the dropper.
[0005] The above object of the application is achieved by the following technical scheme:
[0006] The traction power supply equipment maintenance device comprises two wire clamps, the two wire clamps are respectively clamped and fixed on a contact wire and a load-bearing cable in a vertical direction, a length adjusting component is arranged between the two wire clamps, the upper and lower ends of the length adjusting component are respectively connected with the two wire clamps through a traction rope, and a maintenance worker can change the distance between the contact wire and the load-bearing cable at the corresponding position by operating the length adjusting component.
[0007] The length adjusting component comprises a rectangular rotating frame, a threaded rod is threadedly connected to the upper and lower ends of the rectangular rotating frame respectively, and the mutually far ends of the two threaded rods are respectively connected with the two traction ropes.
[0008] Further, a sleeve is welded to the middle position of the upper and lower ends of the rectangular rotating frame respectively, the height of the sleeve is greater than the thickness of the end part of the rectangular rotating frame at the corresponding position, the two threaded rods are respectively inserted into the two sleeves, and the threaded rod and the sleeve at the corresponding position are threadedly connected.
[0009] Further, the wire clamp is preferably a dropper wire clamp.
[0010] Further, the traction rope comprises a steel wire rope, two ends of the steel wire rope are respectively provided with a buckle ring, the buckle ring at one end of the steel wire rope is fixedly bound on a fixing ring at one end of the threaded rod away from the center of the rectangular rotating frame, and the other end of the steel wire rope is fixedly bound on a hook, and the hook is hooked on the fixing ring of the adjacent side string line clamp.
[0011] Further, the hook is preferably an anti-falling hook.
[0012] Further, the mutually close ends of the two threaded rods are respectively fixedly connected with a limiting block, and the diameter of the limiting block is greater than the diameter of the threaded rod.
[0013] Further, opposite sides of the rectangular rotating frame in the width direction are respectively provided with two grab ears.
[0014] Further, a plug-in hole is arranged between the two grab ears on the same side of the rectangular rotating frame.
[0015] To sum up, the present application has at least one of the following beneficial technical effects:
[0016] When the maintenance personnel need to replace the suspension wire between the contact wire and the load-bearing cable, the distance between the mutually far ends of the two traction ropes is slightly greater than the distance between the contact wire and the load-bearing cable through the rectangular rotating frame in the length adjusting component, so that the maintenance personnel can fix the two line clamps on the contact wire and the load-bearing cable, respectively. After fixing the line clamps, the maintenance worker rotates the rectangular rotating frame again, pulls the traction ropes closer to each other through the two threaded rods in threaded connection with the rectangular rotating frame, so that the distance between the contact wire and the load-bearing cable is reduced, and the old suspension wire is unloaded, and the maintenance worker can replace the old suspension wire with a new one. Compared with the prior art, the maintenance worker can quickly adjust the distance between the contact wire and the load-bearing cable by the maintenance device of the present application when replacing the suspension wire, which can save the trouble of needing the help of other workers. Moreover, when rotating the rotating frame, the contact wire and the load-bearing cable move synchronously, which can significantly improve the efficiency of unloading the old suspension wire between the contact wire and the load-bearing cable, so as to facilitate the maintenance worker to quickly replace the suspension wire. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0018] Figure 1 is a side view of the overall structure of the present application in use;
[0019] Figure 2 is a front view of the overall structure of the application in use;
[0020] Figure 3 is Figure 2 is an enlarged structural schematic view at A in FIG. 1;
[0021] Figure 4 is Figure 2 is an enlarged structural schematic view at B in FIG. 1.
[0022] Reference signs: 1, wire gripper; 2, contact wire; 3, messenger wire; 4, length adjustment component; 41, rectangular rotating frame; 42, threaded rod; 5, traction rope; 51, steel wire rope; 52, buckle; 53, hook; 6, sleeve; 7, limiting block; 8, grab ear; 9, insertion hole. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application is described clearly and completely below. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor also belong to the scope of protection of the present application.
[0024] As Figures 1-4 shown, the disclosed traction power supply equipment maintenance device comprises two wire grippers 1, the two wire grippers 1 are respectively clamped and fixed on the contact wire 2 and the messenger wire 3 along the vertical direction, a length adjustment component 4 is arranged between the two wire grippers 1, the upper and lower ends of the length adjustment component 4 are respectively connected with the two wire grippers 1 through a traction rope 5, and the maintenance worker can change the distance between the contact wire 2 and the messenger wire 3 at the corresponding position by operating the length adjustment component 4.
[0025] The length adjustment component 4 comprises a rectangular rotating frame 41, a threaded rod 42 is threadedly connected to the upper and lower ends of the rectangular rotating frame 41 respectively, and the mutually far ends of the two threaded rods 42 are respectively connected with the two traction ropes 5.
[0026] In the above embodiment, the rectangular rotating frame 41 is threadedly connected with two threaded rods 42 at the upper and lower ends, respectively, and the two threaded rods 42 are always symmetric about the center of the rectangular rotating frame 41 during use. When the rectangular rotating frame 41 rotates, the two threaded rods 42 move synchronously closer or further apart. When the distance between the contact wire 2 and the load-bearing cable 3 near the old suspension chord needs to be shortened to make the old suspension chord no longer bear force and facilitate the replacement of the old suspension chord by the maintenance personnel, the maintenance personnel only need to rotate the rectangular rotating frame 41 to make the two threaded rods 42 installed thereon move closer to each other. Since the ends of the two threaded rods 42 away from each other are connected with the contact wire 2 and the load-bearing cable 3 through a traction rope 5 and a wire clamp 1, respectively, the contact wire 2 and the load-bearing cable 3 will move synchronously and move closer to each other, so that the old suspension chord to be replaced is quickly unloaded to facilitate the replacement of the suspension chord by the workers more efficiently. In addition, when the maintenance device of the present application is used to replace the suspension chord, even one person can complete the replacement work, which can effectively save labor costs compared with two workers cooperating to replace the suspension chord. Moreover, the maintenance device of the present application has a simple structure and is easy to operate, and its structure mainly includes two traction ropes 5 and a rectangular rotating frame 41, which is very convenient for the maintenance personnel to carry in the air.
[0027] Further, as shown in Figure 1 , Figure 2 and Figure 4 , a sleeve 6 is welded at the middle position of the upper and lower ends of the rectangular rotating frame 41, respectively. The height of the sleeve 6 is greater than the thickness of the end of the rectangular rotating frame 41 at the corresponding position. The two threaded rods 42 are inserted into the two sleeves 6, respectively, and the threaded rod 42 is threadedly connected with the sleeve 6 at the corresponding position.
[0028] In the above embodiment, the sleeve 6 welded at the upper and lower ends of the rectangular rotating frame 41 according to the above-mentioned manner can increase the contact area between the sleeve 6 and the threaded rod 42, thereby effectively improving the stability of the movement of the two threaded rods 42 when the rectangular rotating frame 41 rotates.
[0029] Further, as shown in Figure 2 and Figure 3 , the wire clamp 1 is preferably a suspension chord clamp.
[0030] In the above embodiment, the suspension chord clamp is a clamp specially used to connect the contact wire 2 and the load-bearing cable 3 during installation of the suspension chord. The wire clamp 1 used to install the maintenance device on the contact wire 2 and the load-bearing cable 3 is also selected to be a suspension chord clamp, which can save the trouble of purchasing other types of clamps during procurement of the maintenance device, and the maintenance personnel can easily operate it.
[0031] Further, as shown in Figures 1-4As shown, the traction rope 5 comprises a steel wire rope 51, and a buckle ring 52 is arranged at each end of the steel wire rope 51. The buckle ring 52 at one end of the steel wire rope 51 is fixedly bound to a fixing ring at one end of the threaded rod 42 away from the center of the rectangular rotating frame 41, and the other end of the steel wire rope 51 is fixedly bound to a hook 53, which is hooked to a fixing ring on the adjacent side of the hanging string clamp.
[0032] In the above embodiment, one end of the steel wire rope 51 is connected through the buckle ring 52 and the fixing ring on the hanging string clamp, and the other end of the steel wire rope 51 is connected through the buckle ring 52 and the fixing ring on one of the threaded rods 42. Thus, when the maintenance personnel move the two threaded rods 42 while rotating the rectangular rotating frame 41, the traction force can be transmitted to the contact wire 2 and the load-bearing cable 3 through the steel wire rope 51, so as to drive the contact wire 2 and the load-bearing cable 3 to approach each other or to facilitate the resetting of the contact wire 2 and the load-bearing cable 3.
[0033] Further, as shown in Figure 2 and Figure 3 , the hook 53 is preferably a non-detachable hook 53.
[0034] In the above embodiment, the hook 53 of the present application is preferably a non-detachable hook 53, which can effectively reduce the risk of the hook 53 falling off the fixing ring of the corresponding hanging string clamp when the threaded rod 42 drives the contact wire 2 or the load-bearing cable 3 to move through the steel wire rope 51.
[0035] Further, as shown in Figure 2 , Figure 4 , a limiting block 7 is fixedly connected to each approaching end of the two threaded rods 42, and the diameter of the limiting block 7 is greater than the diameter of the threaded rod 42.
[0036] In the above embodiment, the two ends of the length direction of the rectangular rotating frame 41 are respectively threadedly connected to the two threaded rods 42 through a sleeve 6. In order to prevent the threaded rod 42 from falling off the rectangular rotating frame 41 due to excessive rotation of the rectangular rotating frame 41 by the maintenance worker, a limiting block 7 is additionally arranged at each approaching end of the two threaded rods 42, and the diameter of the limiting block 7 is greater than the diameter of the threaded rod 42. Thus, when the two threaded rods 42 are driven to move through the rectangular rotating frame 41, the two limiting blocks 7 can be clamped at the end of the sleeve 6 inside the rectangular rotating frame 41 before the threaded rod 42 falls off, thereby preventing the threaded rod 42 from falling off.
[0037] Further, as shown in Figure 1 , Figure 2 and Figure 4 , two grab ears 8 are arranged on opposite sides of the width direction of the rectangular rotating frame 41.
[0038] In the above embodiment, when the maintenance worker rotates the rectangular rotating frame 41, the gripping ears 8 arranged on opposite sides of the rectangular rotating frame 41 in the width direction can increase the resistance when the worker rotates the rectangular rotating frame 41 with hands, so that the worker can better exert force to rotate the rectangular rotating frame 41.
[0039] Further, as shown in Figure 1 、 Figure 2 and Figure 4 , two gripping ears 8 on the same side of the rectangular rotating frame 41 are provided with a through plug hole 9.
[0040] In the above embodiment, when the maintenance worker rotates the rectangular rotating frame 41 with great effort, the wrench handle carried by the worker can be inserted into the two plug holes 9 in the transverse direction, so that the wrench can temporarily function as a lever at the rectangular rotating frame 41, so that the worker can efficiently and labor-savingly rotate the rectangular rotating frame 41.
[0041] The implementation principle of the embodiment is that when the worker needs to replace the suspension string, the distance between the two mutual far ends of the traction ropes 5 is first adjusted to be slightly greater than the distance between the contact line 2 and the load-bearing cable 3 by rotating the rectangular rotating frame 41, so that the maintenance personnel can conveniently fix the two wire clamps 1 on the contact line 2 and the load-bearing cable 3. After the maintenance worker fixes the two wire clamps 1 on the contact line 2 and the load-bearing cable 3 near the suspension string to be replaced, the rectangular rotating frame 41 can be rotated again to drive the two threaded rods 42 on the rectangular rotating frame 41 to pull the steel wire ropes 51 in the traction ropes 5 to approach each other, so that the distance between the contact line 2 and the load-bearing cable 3 is reduced, so that the old suspension string to be replaced is unloaded and becomes loose. At this time, the maintenance worker releases the rectangular rotating frame 41, and the rectangular rotating frame 41 can use the threaded connection relationship with the threaded rods 42 to function as a self-locking effect, so as to ensure that the contact line 2 and the load-bearing cable 3 near the old suspension string remain in the above state, and then the maintenance worker can use a tool to remove the old suspension string and install a new suspension string. Compared with the prior art, when the maintenance worker replaces the suspension string, the worker can quickly adjust the distance between the contact line 2 and the load-bearing cable 3 by the maintenance device of the present application, so that the worker can save the trouble of needing the help of other workers. Moreover, when the rectangular rotating frame 41 is rotated, the contact line 2 and the load-bearing cable 3 move synchronously, so that the efficiency of unloading the old suspension string between the contact line 2 and the load-bearing cable 3 can be significantly improved, so that the maintenance worker can quickly replace the suspension string.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that; it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A device for servicing a traction power supply, characterized in that: The utility model provides a kind of contact line and bearing cable length adjusting device, including two wire clippers (1), two the wire clippers (1) are fixed respectively along vertical direction on contact line (2) and bearing cable (3), length adjusting component (4) is equipped between two the wire clippers (1), and the upper and lower ends of length adjusting component (4) are connected with two the wire clippers (1) respectively by a traction rope (5), and the interval between contact line (2) and bearing cable (3) at corresponding place can be changed by the operation of length adjusting component (4) by maintenance worker; The length adjusting component includes a rectangular rotating frame (41), the upper and lower ends of the rectangular rotating frame (41) are respectively threadedly connected with a threaded rod (42), and the mutually remote ends of the two threaded rods (42) are respectively connected with the two traction ropes (5).
2. The device of claim 1, wherein: A sleeve (6) is welded at the middle position of the upper and lower ends of the rectangular rotating frame (41), the height of the sleeve (6) is greater than the thickness of the end part of the rectangular rotating frame (41) at the corresponding position, the two threaded rods (42) are respectively inserted into the two sleeves (6), and the threaded rod (42) and the sleeve (6) at the corresponding position are threadedly connected.
3. The device of claim 2, wherein: The wire clipper (1) is a pendant line clamp.
4. The device according to any one of claims 1 to 3, characterized in that: The traction rope (5) includes a steel wire rope (51), the two ends of the steel wire rope (51) are respectively provided with a buckle (52), the buckle (52) at one end of the steel wire rope (51) is fixedly bound on a fixed ring at the end of the threaded rod (42) away from the center of the rectangular rotating frame (41), the other end of the steel wire rope (51) is fixedly bound on a hook (53), and the hook (53) is hooked on a fixed ring on the pendant line clamp adjacent to the side.
5. The device of claim 4, wherein: The hook (53) is a anti-dropping hook (53).
6. The device of claim 5, wherein: The mutually close ends of the two threaded rods (42) are respectively fixedly connected with a limiting block (7), and the diameter of the limiting block (7) is greater than the diameter of the threaded rod (42).
7. The device of claim 1, wherein: Two grab ears (8) are respectively arranged on the opposite sides of the rectangular rotating frame (41) in the width direction.
8. The device of claim 7, wherein: A plug-in hole (9) is arranged between the two grab ears (8) on the same side of the rectangular rotating frame (41).