A bridle wire replacement, adjustment aid

Abstract

The utility model discloses a kind of sling replacement, adjusting auxiliary device, including upper hook, rotating part, lower hook, connecting rope, upper hook is connected with the one end of rotating part, lower hook is realized soft connection with rotating part by connecting rope, the relative position between upper hook, lower hook can be changed by rotating part.The utility model can be quickly adjusted according to sling length to connecting rope when using, satisfy to the sling of various length size is quickly unloaded tension to be adjusted, replacement, after upper hook, lower hook are hung with load-bearing cable, contact wire in actual use, only need to rotate rotating part to pull load-bearing cable, contact wire is close to each other, according to the corresponding position of measuring scale and measuring block, the deformation size of load-bearing cable, contact wire can be quickly read, the length of sling is adjusted, to speed up the efficiency of sling replacement, adjustment, while the rough surface inner bending surface of upper hook, lower hook can increase friction, connecting rope is convenient for auxiliary device storage.

Description

Technical Field

[0001] This utility model relates to auxiliary tools for railway electrical maintenance, and more specifically, to an auxiliary device for replacing and adjusting droppers. Background Technology

[0002] The railway catenary is a power transmission line erected above the railway to supply electricity to electric locomotives. It mainly consists of poles, catenary wires, contact wires, and droppers. The poles are set along one side of the railway. The catenary wires are erected along the upper part of the railway through supports on the poles. The contact wires are set below the catenary wires and are fixed by connecting them to the catenary wires through droppers. The electric locomotive obtains current by contacting the contact wire with the pantograph, thereby driving the locomotive forward. The droppers, as the suspension component and stress point of the contact wire, must maintain tension for a long time to keep the contact wire at a set height to ensure the quality of current collection by the electric locomotive.

[0003] Because the pantograph of the electric locomotive is in contact with the contact wire, the dropper cable will resonate along with the contact wire. Long-term resonance can cause the dropper cable to loosen or be damaged. In addition, the dropper cable is outdoors, which can lead to corrosion and breakage. In actual operation, some dropper cables of the contact network also show phenomena such as uneven wear, wear of the heart-shaped ring, and twisting of the dropper cable return line, which seriously affect the operational safety of the railway. When the dropper cable is damaged, it needs to be replaced, including manual replacement, which is to adjust and replace the dropper cable by "manual lifting and measuring with a tape measure". This method is inefficient and the tension between the catenary and the contact wire can easily lead to safety accidents. Existing technology also uses special tools for replacement. These special tools have hooks at both ends and are connected by a threaded tube in the middle. When using them, the hooks at the top and bottom ends of the special tool are hung between the catenary and the contact wire near the dropper cable to be replaced. Then, the threaded tube is rotated to pull the catenary and the contact wire closer together, so that the dropper cable loses tension and can be replaced. The catenary and droppers will deform during long-term use. In order to ensure a constant contact wire height, the length of the dropper needs to be finely adjusted when replacing the dropper. Although the existing telescopic rod-type special tool can replace the dropper, the length of the dropper varies depending on the location. The telescopic rod-type special tool is limited to the length of the threaded tube, which cannot meet the replacement of all droppers, nor can it guarantee the adjustment accuracy of the dropper. The tool is also too long and inconvenient to carry. Utility Model Content

[0004] This invention overcomes the shortcomings of the prior art by providing an implementation method for a suspension string replacement and adjustment auxiliary device, which is expected to solve the problem of low efficiency in existing suspension string replacement and adjustment methods.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A suspension string replacement and adjustment aid includes an upper hook, a rotating part, a lower hook, and a connecting rope. The upper hook is connected to one end of the rotating part, and the lower hook is flexibly connected to the rotating part through the connecting rope. The relative position between the upper hook and the lower hook can be changed through the rotating part.

[0007] Optionally: The rotating part is a frame structure, and the rotating part also includes an adjusting screw. The lower end of the adjusting screw is threadedly connected to the upper end of the rotating part. The bottom of the upper hook is fixedly connected to the upper end of the adjusting screw. A rope connecting block is also rotatably connected to the bottom of the rotating part, and the connecting rope is connected to the lower hook through the rope connecting block.

[0008] Optionally: The rotating part includes a left side plate, a right side plate, an upper connecting plate, and a lower connecting plate. The left side plate and the right side plate are arranged opposite each other with a certain gap between them. The two ends of the upper connecting plate are fixedly connected to one end of the left side plate and the right side plate, respectively. The two ends of the lower connecting plate are fixedly connected to the other end of the left side plate and the right side plate, respectively. The adjusting screw is threadedly connected to the upper connecting plate, and the rope connecting block is rotatably connected to the lower connecting plate.

[0009] Optionally: The rope connecting block has a grooved connecting portion, and the lower connecting plate has a through hole that matches the grooved connecting portion. The grooved connecting portion of the rope connecting block is rotatably connected to the lower connecting plate through the through hole on the lower connecting plate.

[0010] Optionally: The hook tip of the rope connecting block also has a rope threading hole, and the hook tip of the lower hook has a lower rope threading hole. The rope threading hole and the lower rope threading hole are horizontally arranged flat holes, and their width dimensions match the width of the connecting rope.

[0011] Optionally, the upper connecting plate, the lower connecting plate and the left side plate and the right side plate are connected by snap-fit ​​or bolts.

[0012] Optional: The auxiliary device further includes a measuring ruler, which is fixedly installed on the outside of the left side plate or the right side plate. The measuring ruler is in millimeters and its zero mark is located at the top. The auxiliary device also includes a measuring block, which is slidably sleeved on the left side plate or the right side plate. The measuring block is rotatably connected to the bottom end of the adjusting screw.

[0013] Optionally: A limiting block is fixedly connected to the bottom of the adjusting screw. The measuring block has a through hole, through which the adjusting screw achieves a rotatable connection between the measuring block and the adjusting screw. The limiting block is located at the bottom of the measuring block. The bottom of the measuring block also has a limiting plate, which is fixedly connected to the measuring block. The limiting block is located between the measuring block and the limiting plate.

[0014] Optionally, the hook body of the upper and lower hooks is made of sheet metal, and its inner curved surface is rough.

[0015] Optionally, the connecting rope is a sheet-like rope, and the two ends of the connecting rope are connected by adjustable connecting buckles.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: When in use, the connecting rope can be quickly adjusted according to the length of the suspension cable, which can quickly relieve tension for suspension cables of various lengths and sizes, thereby allowing for adjustment and replacement. In actual use, after the upper hook and lower hook are hooked to the catenary and contact line, the catenary and contact line can be pulled closer by simply rotating the rotating part. The deformation of the catenary and contact line can be quickly read according to the corresponding position of the measuring ruler and measuring block, which facilitates the adjustment of the suspension cable length and thus speeds up the efficiency of suspension cable replacement and adjustment. At the same time, the rough inner curved surface of the upper hook and lower hook can increase the friction force, and the connecting rope is easy to store in the auxiliary device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the rotating part structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the rope connecting block of this utility model;

[0019] Figure 3 This is a schematic diagram showing the connection between the adjusting screw, the upper hook, and the limiting block of this utility model;

[0020] Figure 4 This is a schematic diagram of the hook structure of this utility model;

[0021] The following are the components listed in the diagram: 1. Upper hook; 2. Rotating part; 201. Left side plate; 202. Right side plate; 203. Upper connecting plate; 204. Lower connecting plate; 3. Lower hook; 301. Lower rope hole; 302. Connecting pin; 4. Adjusting screw; 401. Limiting block; 5. Rope connecting block; 501. Groove connecting part; 6. Rope hole; 7. Measuring ruler; 8. Measuring block; 801. Limiting plate. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0023] like Figure 1As shown: A suspension string replacement and adjustment auxiliary device (hereinafter referred to as the auxiliary device) includes an upper hook 1, a rotating part 2, a lower hook 3, and a connecting rope; wherein the upper hook 1 is connected to one end of the rotating part 2, and the lower hook 3 is flexibly connected to the rotating part 2 through the connecting rope; the rotating part 2 is a frame structure, including a left side plate 201, a right side plate 202, an upper connecting plate 203, and a lower connecting plate 204. The left side plate 201 and the right side plate 202 are arranged opposite each other with a certain gap between them. The two ends of the upper connecting plate 203 are respectively fixedly connected to one end of the left side plate 201 and the right side plate 202, and the two ends of the lower connecting plate 204 are respectively fixedly connected to one end of the left side plate 201 and the right side plate 202, and respectively. The upper connecting plate 203 and the lower connecting plate 204 are fixedly connected to the other end of the left side plate 201 and the right side plate 202. The upper connecting plate 203 and the lower connecting plate 204 can be fixedly connected to the left side plate 201 and the right side plate 202 by means of snap-fit ​​or bolts. In this utility model, snap-fit ​​and bolts are used for fixed connection. The bolts are connected to the upper connecting plate 203 and the lower connecting plate 204 through the outer side of the left side plate 201 and the right side plate 202. Since the rotating part 2 is a load-bearing component, excessive wear is inevitable during use. The detachable installation method allows for the repair and replacement of damaged parts of the rotating part 2. The auxiliary device also includes an adjusting screw 4, which is a threaded rod. A threaded hole is provided on the upper connecting plate 203, through which the adjusting screw 4 is threadedly connected to the upper connecting plate 203. The adjusting screw 4 is parallel to the left side plate 201 and the right side plate 202, with its lower end positioned between the left side plate 201 and the right side plate 202. The bottom of the upper hook 1 is fixedly connected to the upper part of the adjusting screw 4. A rope connecting block 5 is rotatably connected to the bottom of the lower connecting plate 204, and the connecting rope is connected to the rotating part 2 through the rope connecting block 5. The length of the connecting rope is adjustable. Replace as needed before use. Adjust the length of the connecting rope by adjusting the length of the dropper. Rotate the rotating part 2 to fully extend the adjusting screw 4. Then, hook the upper hook 1 on the catenary cable near the dropper to be replaced, and hook the lower hook 3 on the contact line near the dropper to be replaced. Then, manually or with the help of tools, rotate the rotating part 2 and adjust the screw 4 relative to the rotating part 2 to bring the upper hook 1 and lower hook 3 closer together. This will pull the catenary cable and contact line at both ends closer together, thereby relieving the tension of the dropper. After the tension of the dropper is relieved, the dropper can be replaced or repaired. After the dropper is replaced, reverse the above steps to remove the auxiliary device.

[0024] like Figure 2As shown, the rope connecting block 5 has a grooved connecting portion 501, and the lower connecting plate 204 has a through hole that matches the grooved connecting portion 501. The grooved connecting portion 501 of the rope connecting block 5 is rotatably connected to the lower connecting plate 204 through the through hole. In actual use, since the rotating part 2 rotates during use, if the connecting rope rotates with the rotating part 2, it will cause the connecting rope to twist. Repeated twisting will make it difficult to adjust the length of the connecting rope. The rotatable connection between the rope connecting block 5 and the lower connecting plate 204 can effectively prevent the connecting rope from twisting. The rope connecting block 5 also has a rope threading hole 6, which is a horizontally arranged flat hole with a width that matches the width of the connecting rope. When the connecting rope is under stress, the horizontally opened rope threading hole 6 can effectively prevent its deformation and make it more convenient to adjust the length later.

[0025] The auxiliary device also includes a measuring ruler 7, which is fixedly installed on the outside of the left side plate 201 or the right side plate 202. The measuring ruler 7 uses millimeters as the unit of length, and its zero mark is located at the top. The auxiliary device also includes a measuring block 8, which is slidably sleeved on the left side plate 201 and the right side plate 202. The measuring block 8 is rotatably connected to the bottom end of the adjusting screw 4. Figure 3 As shown, a limiting block 401 is fixedly connected to the bottom of the adjusting screw 4. The measuring block 8 has a through hole, through which the measuring block 8 and the adjusting screw 4 are rotatably connected. The limiting block 401 is located at the bottom of the measuring block 8. The bottom of the measuring block 8 also has a limiting plate 801, which is fixedly connected to the measuring block 8. The limiting block 401 is located between the measuring block 8 and the limiting plate 801. Before use, the adjusting screw 4 or the rotating part 2 is rotated to extend the adjusting screw 4. At the same time as the adjusting screw 4 extends, the limiting block 401 at the bottom will pull the measuring block 8 along... The left side plate 201 and the right side plate 202 slide upwards. When they slide to the top, the upper part of the measuring block 8 is aligned with the zero mark of the measuring ruler 7. When the auxiliary device is in use, the adjusting screw 4 is rotated in the opposite direction. The adjusting screw 4 retracts and drives the measuring block 8 to move downwards. When the upper hook 1 and the lower hook 3 are close to the appropriate position, the retraction dimension of the auxiliary device can be read through the corresponding position of the measuring block 8 and the measuring ruler 7, and the deformation dimension of the catenary and the contact line can be obtained. During the retraction of the adjusting screw 4, the limiting block 401 pushes the limiting plate 801 to move downwards, so that the measuring block 8 slides downwards.

[0026] Both upper hook 1 and lower hook 3 are plate-shaped hooks, meaning their bodies are made of plate material. This increases the contact area between the hook bodies and the catenary and contact line. Simultaneously, the inner curved surfaces of upper hook 1 and lower hook 3 are roughened to increase friction with the catenary and contact line. Figure 4As shown, the hook tip of the lower hook 3 has a rope-passing hole 301, which is also a horizontally arranged flat hole with a width matching the width of the connecting rope. When the connecting rope is under stress, the horizontally arranged rope-passing hole 301 effectively prevents deformation, making subsequent length adjustments more convenient. A connecting pin 302 is also connected to the outer side of the hook tip of the lower hook 3; preferably, there are three connecting pins 302. In actual use, the length adjustment of the connecting rope needs to be determined based on the required length of the dropper. Common droppers only come in a few sizes. Once the dropper length is known, the length of the connecting rope can be measured on the ground using the matching tape measure. Then, the connecting rope can be initially adjusted so that the length of the auxiliary device basically meets the distance between the catenary and the contact wire, eliminating the need for high-altitude measurements and reducing safety risks. The matching tape measure is a common tape measure, but the difference lies in that the zero mark end of the tape measure has a connecting hole that matches the connecting pins 302. The three connecting pins 302 ensure a stable connection between the tape measure and the lower hook 3, preventing it from falling when measuring length. Once the upper hook 1 and lower hook 3 hook the catenary and contact line respectively, only minor adjustments to the auxiliary device are needed to make the auxiliary device bear the tension between the catenary and contact line, making high-altitude operations simpler.

[0027] The connecting rope is a common sheet rope, which can be purchased on the market. The two ends of the connecting rope are connected by D-ring buckles or other adjustable connecting buckles. Since the connecting rope and connecting buckles can be purchased on the market, they will not be described in detail here, nor will they be shown in the attached diagram.

[0028] Specific usage instructions: Before use, the auxiliary device needs to be adjusted according to the length of the suspension cable. Specific adjustments include adjusting the position of the upper hook and the length of the connecting rope. To adjust the upper hook position, rotate the rotating part 2 until the adjusting screw 4 is fully extended, and the measuring block 8 is at the zero mark position of the measuring ruler 7. To adjust the connecting rope length, hang the zero mark end of the matching measuring tape on the connecting pin 302 of the lower hook 3, pull the measuring tape to the hook tip position of the upper hook 1, and measure the length of the suspension cable. Fix the position of the upper hook 1, then adjust the connecting rope, and lock the connecting buckle after the connecting rope is taut. When using, hang the upper hook 1 on the catenary cable where the suspension cable needs to be replaced. Nearby, hook 3 is then hung near the contact line where the dropper needs to be replaced. Then, manually or with the aid of tools, rotate the rotating part 2, and adjust the screw 4 to rotate relative to the rotating part 2. The upper hook 1 and lower hook 3 move closer together, pulling the catenary and contact line at both ends closer together. After the tension of the dropper is released, the shrinkage dimension of the auxiliary device is read through the corresponding position of the measuring block 8 and the measuring ruler 7 to obtain the deformation dimension of the catenary and contact line. Then, the dropper is replaced or repaired, or the dropper length is adjusted according to the deformation dimension. After the dropper is replaced or repaired, rotate the rotating part 2 in the opposite direction until the auxiliary device is completely unloaded and the dropper is under force, then the auxiliary device can be removed.

[0029] Although the present invention has been described herein with reference to illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and improvements can be made to the components and / or layout of the subject matter combination within the scope of the present application. Besides variations and improvements to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A suspension string replacement and adjustment auxiliary device, characterized in that: It includes an upper hook (1), a rotating part (2), a lower hook (3), and a connecting rope. The upper hook (1) is connected to one end of the rotating part (2), and the lower hook (3) is softly connected to the rotating part (2) through the connecting rope. The relative position between the upper hook (1) and the lower hook (3) can be changed by rotating the rotating part (2).

2. The auxiliary device for changing and adjusting the suspension string according to claim 1, characterized in that: The rotating part (2) is a frame structure. The rotating part (2) also includes an adjusting screw (4). The lower end of the adjusting screw (4) is threadedly connected to the upper end of the rotating part (2). The bottom of the upper hook (1) is fixedly connected to the upper end of the adjusting screw (4). The bottom of the rotating part (2) is also rotatably connected to a rope connecting block (5). The connecting rope is connected to the lower hook (3) through the rope connecting block (5).

3. The auxiliary device for changing and adjusting the suspension string according to claim 2, characterized in that: The rotating part (2) includes a left side plate (201), a right side plate (202), an upper connecting plate (203), and a lower connecting plate (204). The left side plate (201) and the right side plate (202) are arranged opposite to each other with a certain gap between them. The two ends of the upper connecting plate (203) are fixedly connected to one end of the left side plate (201) and the right side plate (202), respectively. The two ends of the lower connecting plate (204) are fixedly connected to the other end of the left side plate (201) and the right side plate (202), respectively. The adjusting screw (4) is threadedly connected to the upper connecting plate (203), and the rope connecting block (5) is rotatably connected to the lower connecting plate (204).

4. The auxiliary device for changing and adjusting the suspender according to claim 3, characterized in that: The rope connecting block (5) has a groove connecting part (501), and the lower connecting plate (204) has a through hole that matches the groove connecting part (501). The groove connecting part (501) of the rope connecting block (5) is rotatably connected to the lower connecting plate (204) through the through hole on the lower connecting plate (204).

5. The auxiliary device for changing and adjusting the suspender according to claim 3, characterized in that: The rope connecting block (5) also has a rope hole (6), and the hook tip of the lower hook (3) has a lower rope hole (301). The rope hole (6) and the lower rope hole (301) are horizontally arranged flat holes, and their width dimensions match the width of the connecting rope.

6. The auxiliary device for changing and adjusting the suspender according to claim 3, characterized in that: The upper connecting plate (203), lower connecting plate (204) are connected to the left side plate (201) and right side plate (202) by means of snap-fit ​​or bolts.

7. The auxiliary device for changing and adjusting the suspender according to claim 3, characterized in that: The auxiliary device also includes a measuring ruler (7), which is fixedly installed on the outside of the left side plate (201) or the right side plate (202). The measuring ruler (7) is in millimeters as the length unit, and its zero mark is located at the top. The auxiliary device also includes a measuring block (8), which is slidably sleeved on the left side plate (201) and the right side plate (202). The measuring block (8) is rotatably connected to the bottom end of the adjusting screw (4).

8. The auxiliary device for changing and adjusting the suspender according to claim 7, characterized in that: The bottom of the adjusting screw (4) is fixedly connected to a limiting block (401). The measuring block (8) has a through hole. The adjusting screw (4) achieves a rotatable connection between the measuring block (8) and the adjusting screw (4) through the through hole. The limiting block (401) is located at the bottom of the measuring block (8). The bottom of the measuring block (8) also has a limiting plate (801). The limiting plate (801) is fixedly connected to the measuring block (8). The limiting block (401) is located between the measuring block (8) and the limiting plate (801).

9. The auxiliary device for changing and adjusting the suspender according to claim 8, characterized in that: The hook bodies of the upper hook (1) and lower hook (3) are made of sheet metal, and their inner curved surfaces are rough.

10. The auxiliary device for changing and adjusting the suspender according to claim 1, characterized in that: The connecting rope is a sheet-like rope, and the two ends of the connecting rope are connected by adjustable connecting buckles.

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