Contact net balance weight replacing tool

Abstract

The utility model relates to the technical field of balance weight replacement, in particular to an overhead line system balance weight replacement tool, and aims to solve the technical problems of increased labor intensity, reduced operation efficiency and improved safety risk caused by dependence on manual operation in related technologies. The overhead line system balance weight replacing tool comprises a first lifting unit, a second lifting unit and a supporting unit, and the first lifting unit and the second lifting unit are connected with the supporting unit. The first lifting unit is connected with the upper balance weight, and the second lifting unit is connected with the lower balance weight. According to the overhead line system balance weight replacing tool, the supporting unit replaces manual work to provide lifting force for the upper balance weight to support the upper balance weight, so that the damaged balance weight can be directly separated and replaced. Therefore, the operation steps are simplified, the labor intensity and the safety risk are reduced, and the operation efficiency is improved. The technical problems that the labor intensity is increased, the working efficiency is reduced and the safety risk is improved due to the fact that an existing overhead line system balance weight replacing mode depends on manual operation are solved.

Description

Technical Field

[0001] This utility model relates to the field of contact wire weight replacement technology, and in particular to a tool for replacing contact wire weights. Background Technology

[0002] The cement weights of the overhead contact line equipment have aged and deteriorated due to long-term exposure to the natural environment, requiring replacement to ensure equipment safety. In the current replacement process, operators first need to temporarily secure the compensating rope, then dismantle the old weights one by one from top to bottom until they reach the damaged weight for replacement. After replacement, the weights are reassembled, and the compensating rope is released. However, this process is tedious, labor-intensive, and unsafe. It is not only affected by the physical and mental state of the workers, but also easily leads to fatigue and distraction, reducing work speed and accuracy. This results in high labor intensity, low work efficiency, and safety risks.

[0003] The existing methods for replacing overhead contact line weights have technical problems, such as increased labor intensity, reduced work efficiency, and increased safety risks due to reliance on manual operation. Utility Model Content

[0004] The purpose of this utility model is to provide a tool for replacing overhead contact line weights, so as to solve the technical problems in related technologies that increase labor intensity, reduce work efficiency and increase safety risks due to reliance on manual operation.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] The contact wire weight replacement tool provided by this utility model includes:

[0007] The system comprises a first lifting unit, a second lifting unit, and a support unit, with the first and second lifting units respectively connected to the support unit. The weight to be replaced, along with the weights above and below it, are arranged from top to bottom as a first weight, a broken weight, and a second weight. The first lifting unit is connected to the first weight, and the second lifting unit is connected to the second weight. The support unit is used to drive the first and second lifting units to move in opposite directions.

[0008] Specifically, the first lifting unit includes a first support plate, and the second lifting unit includes a second support plate. Both the first and second support plates are inserted into the groove of the broken weight and abut against the first and second weights respectively. The axial extension of the support unit drives the first and second support plates to move in opposite directions vertically, thereby causing the first and second weights to move in opposite directions and thus lifting the first weight.

[0009] Specifically, the first lifting unit further includes a first clamp, and the second lifting unit further includes a second clamp. The first clamp and the second clamp are respectively fitted onto the first weight and the second weight. The axial extension of the support unit is used to drive the first clamp and the second clamp to move in opposite directions in the vertical direction, thereby driving the first weight and the second weight to move in opposite directions, thereby lifting the first weight.

[0010] Specifically, the support unit includes a linear drive member and a drive mechanism. The linear drive member is arranged vertically and its two ends are respectively connected to the first lifting unit and the second lifting unit. The drive mechanism is used to drive the linear drive member to extend or shorten along the axial direction so as to drive the first lifting unit and the second lifting unit to move in opposite directions or towards each other.

[0011] Specifically, the linear drive component is configured as a sleeve, with the first lifting unit and the second lifting unit threadedly connected to both ends of the sleeve, and the threads rotating in opposite directions. The sleeve rotates around its own axis to drive the first lifting unit and the second lifting unit to move towards or away from each other.

[0012] Specifically, the driving mechanism includes an operating handle, which is sleeved on the sleeve and used to drive the sleeve to rotate around its own axis.

[0013] Specifically, the drive mechanism further includes a ratchet and a double-ended pawl. The ratchet is mounted on the sleeve, and the double-ended pawl is rotatably mounted on the operating handle and engages with the ratchet. The operating handle can drive the sleeve to rotate via the double-ended pawl and the ratchet. The sleeve can only be driven by the unidirectional rotation of the operating handle. When rotating in the opposite direction, the double-ended pawl overcomes the torsion spring force and disengages from the ratchet. Rotating the double-ended pawl changes the engagement position between the pawl and the ratchet, thereby causing the sleeve to rotate clockwise or counterclockwise under the reciprocating swing of the operating handle.

[0014] Specifically, the linear drive component is configured as an electric push rod, and the drive mechanism is configured as a motor. The motor drives the electric push rod to extend in order to apply a thrust to the first lifting unit.

[0015] Specifically, the first lifting unit further includes a first support ring, and the second lifting unit further includes a second support ring, both of which are sleeved on the linear drive component.

[0016] Specifically, it also includes a limiting plate, which has a sliding groove extending along the axis of the linear drive member. The first lifting unit and the second lifting unit are both inserted into the sliding groove and slide along the sliding groove.

[0017] Based on the above technical solutions, the beneficial effects of this utility model are analyzed as follows:

[0018] This utility model provides a tool for replacing contact wire weights, including:

[0019] The system comprises a first lifting unit, a second lifting unit, and a support unit, with the first and second lifting units respectively connected to the support unit. The weight to be replaced, along with the weights above and below it, are arranged from top to bottom as a first weight, a broken weight, and a second weight. The first lifting unit is connected to the first weight, and the second lifting unit is connected to the second weight. The support unit is used to drive the first and second lifting units to move in opposite directions.

[0020] In practical application, identify the damaged weight that needs to be replaced, and determine the corresponding first and second weights accordingly. Secure the compensating rope and weight string using a tensioner. Connect the first lifting unit to the first weight, and the second lifting unit to the second weight. The support unit drives the first and second lifting units to move in opposite directions vertically, thereby raising the first weight. By increasing the distance between the first and second weights, the positioning relationship between the first weight, the damaged weight, and the second weight is released. Remove the damaged weight and place the new weight back in its original position. The support unit reverses its rotation, lowering the first weight and re-stacking the weight string. Separate the first lifting unit from the first weight and the second lifting unit from the second weight for the next operation or retrieval. After replacement, remove the tensioner.

[0021] As can be seen, compared with existing technologies, this overhead contact line weight replacement tool uses the support unit to provide lifting force to the first weight, replacing manual labor, so that the damaged weight can be directly separated and replaced. This simplifies the operation, reduces labor intensity and safety risks, and improves work efficiency. It overcomes the technical problems of existing overhead contact line weight replacement methods, which rely on manual operation, leading to increased labor intensity, reduced work efficiency, and increased safety risks. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1Schematic diagram of the assembly structure of the contact wire weight replacement tool provided in this embodiment of the utility model during installation. Figure 1 ;

[0024] Figure 2 Schematic diagram of the assembly structure during the installation of the tool for replacing the overhead contact line weight. Figure 2 ;

[0025] Figure 3 Schematic diagram of the assembly structure for lifting the overhead contact line weight when changing tools. Figure 1 ;

[0026] Figure 4 Schematic diagram of the cross-section structure during the installation of the tool for replacing the overhead contact line weight. Figure 1 ;

[0027] Figure 5 Schematic diagram of the cross-section structure during tool replacement and lifting of the overhead contact line weight. Figure 1 ;

[0028] Figure 6 A schematic diagram of the tool for replacing the contact wire weight;

[0029] Figure 7 This is a schematic diagram of the structure of the weight string;

[0030] Figure 8 Schematic diagram of the cross-section of the ratchet handle Figure 1 ;

[0031] Figure 9 Schematic diagram of the cross-section of the ratchet handle Figure 2 .

[0032] icon:

[0033] 001, First weight; 002, Damaged weight; 0021, Weight rod groove; 003, Second weight;

[0034] 100. First lifting unit; 110. First support plate; 120. First clamp; 130. First support ring; 140. First connecting plate;

[0035] 200. Second lifting unit; 210. Second support plate; 220. Second clamp; 230. Second support ring; 240. Second connecting plate;

[0036] 300. Support unit; 310. Linear drive component; 320. Drive mechanism; 321. Operating handle; 322. Ratchet; 323. Double-ended pawl;

[0037] 400, Limiting plate; 401, Sliding groove. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0040] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0041] The existing methods for replacing overhead contact line weights have technical problems, such as increased labor intensity, reduced work efficiency, and increased safety risks due to reliance on manual operation.

[0042] In view of this, the present invention provides a tool for replacing contact wire weights, comprising:

[0043] The system comprises a first lifting unit 100, a second lifting unit 200, and a support unit 300, with the first lifting unit 100 and the second lifting unit 200 respectively connected to the support unit 300. The weight to be replaced, along with the weights above and below it, are, from top to bottom, the first weight 001, the damaged weight 002, and the second weight 003. The first lifting unit 100 is connected to the first weight 001, and the second lifting unit 200 is connected to the second weight 003. The support unit 300 drives the first lifting unit 100 and the second lifting unit 200 to move in opposite directions, thereby lifting the first weight 001 and enabling the replacement of the damaged weight 002.

[0044] In summary, the contact wire weight replacement tool provided by this utility model can achieve the following technical effects:

[0045] This overhead contact line weight replacement tool uses a support unit 300 to provide lifting force to the first weight 001, replacing manual labor, so that the damaged weight 002 can be directly separated and replaced. This simplifies the operation, reduces labor intensity and safety risks, and improves work efficiency. It overcomes the technical problems of existing overhead contact line weight replacement methods, which rely on manual operation, leading to increased labor intensity, reduced work efficiency, and increased safety risks.

[0046] The following combination Figures 1 to 9 The structure and shape of the contact wire weight replacement tool provided in this embodiment are described in detail below:

[0047] In this embodiment, the first lifting unit 100 includes a first support plate 110, and the second lifting unit 200 includes a second support plate 210. Both the first support plate 110 and the second support plate 210 are inserted into the sinker groove 0021 of the broken sinker 002 and abut against the first sinker 001 and the second sinker 003, respectively. The axial extension of the support unit 300 is used to drive the first support plate 110 and the second support plate 210 to move in opposite directions vertically to apply a pushing force to the first sinker 001, thereby driving the first sinker 001 and the second sinker 003 to move in opposite directions, and thus lifting the first sinker 001. The thickness of the first support plate 110 and the second support plate 210 should be less than the width of the sinker groove 0021, and should be as wide as possible.

[0048] Since the two weight rod grooves 0021 of adjacent weights are fixed at a 180-degree angle in opposite directions, the first support plate 110 and the second support plate 210 will not be inserted into the weight rod grooves 0021 of the first weight 001 or the second weight 003 during movement.

[0049] In this embodiment, the first lifting unit 100 further includes a first clamp 120, and the second lifting unit 200 further includes a second clamp 220. The first clamp 120 and the second clamp 220 are respectively sleeved on the first weight 001 and the second weight 003. The axial extension of the support unit 300 is used to drive the first clamp 120 and the second clamp 220 to move in opposite directions in the vertical direction, thereby driving the first weight 001 and the second weight 003 to move in opposite directions, thereby lifting the first weight 001.

[0050] Regarding the structural composition of the support unit 300, specifically:

[0051] The support unit 300 includes a linear drive member 310 and a drive mechanism 320. The linear drive member 310 is arranged in a vertical direction and its two ends are respectively connected to the first lifting unit 100 and the second lifting unit 200. The drive mechanism 320 is used to drive the linear drive member 310 to extend or shorten along the axial direction so as to drive the first lifting unit 100 and the second lifting unit 200 to move in opposite directions or towards each other.

[0052] In an optional embodiment, the linear drive 310 is configured as a sleeve, with the first lifting unit 100 and the second lifting unit 200 threadedly connected to both ends of the sleeve, and the threads rotating in opposite directions. The sleeve rotates around its own axis to drive the first lifting unit 100 and the second lifting unit 200 to move towards or away from each other.

[0053] Furthermore, the drive mechanism 320 includes an operating handle 321, which is sleeved on the sleeve and used to drive the sleeve to rotate around its own axis.

[0054] To improve the spatial adaptability of the operating handle 321 and the efficiency of operating the sleeve, in this embodiment, the drive mechanism 320 further includes a ratchet 322, a double-ended pawl 323, and a knob. The ratchet 322 is mounted on the sleeve, the knob is rotatably mounted on the operating handle 321, and the double-ended pawl 323 is mounted on the knob and engages with the ratchet 322. A torsion spring is also provided at the connection point between the double-ended pawl 323 and the knob. The sleeve can only be driven by the unidirectional rotation of the operating handle 321. During forward rotation, the operating handle 321 drives the sleeve to rotate via the double-ended pawl 323 and the ratchet 322. During reverse rotation, the double-ended pawl 323 overcomes the torsion spring force and disengages from the ratchet 322. Rotating the knob changes the engagement position of the double-ended pawl 323 and the ratchet 322, causing the sleeve to rotate clockwise or counterclockwise under the reciprocating swing of the operating handle 321. This, in turn, drives the first lifting unit 100 and the second lifting unit 200 to move in opposite directions or towards each other vertically through the threaded connection between the sleeve and the first lifting unit 100 and the second lifting unit 200. In an optional embodiment, the linear drive 310 is configured as an electric push rod, and the drive mechanism 320 is configured as a motor. The motor drives the electric push rod to extend and apply a thrust to the first lifting unit 100, thereby causing the first lifting unit 100 and the second lifting unit 200 to move in opposite directions vertically.

[0055] To enhance the stability of the linear drive component 310, in this embodiment, the first lifting unit 100 further includes a first support ring 130, and the second lifting unit 200 further includes a second support ring 230. Both the first support ring 130 and the second support ring 230 are sleeved on the linear drive component 310 to provide additional support and enhance its bending resistance. The first support ring 130 and the second support ring 230 allow the linear drive component 310 to slide along its own axis or rotate about its own axis. Optionally, both the first support ring 130 and the second support ring 230 have bearings embedded in their contact surfaces with the linear drive component 310.

[0056] In this embodiment, a limiting plate 400 is also included. The limiting plate 400 has a sliding groove 401 extending along the axis of the linear drive member 310. The first lifting unit 100 also includes a first connecting plate 140, on which a first support plate 110, a first clamp 120, and a first support ring 130 are all mounted. The second lifting unit 200 also includes a second connecting plate 240, on which a second support plate 210, a second clamp 220, and a second support ring 230 are all mounted. Both the first connecting plate 140 and the second connecting plate 240 are inserted into the sliding groove 401 and slide along the sliding groove 401. The limiting plate 400 is used to restrict the rotation of the first lifting unit 100 and the second lifting unit 200 around the axis of the linear drive member 310 to prevent the first lifting unit 100 and the second lifting unit 200 from rotating around the axis of the linear drive member 310, thereby preventing the first support plate 110 and the second support plate 210 from being simultaneously inserted into the weight rod groove 0021.

[0057] In summary, the specific working process of the overhead contact line weight replacement tool provided in this embodiment is as follows:

[0058] Taking the linear drive component 310 as a sleeve, and the drive mechanism 320 correspondingly including the operating handle 321, ratchet 322 and double-ended pawl 323 as an example.

[0059] Identify the damaged weight 002 that needs to be replaced, and determine the corresponding first weight 001 and second weight 003 accordingly. Secure the compensating rope and weight string using a tensioner.

[0060] Insert the first support plate 110 and the second support plate 210 into the sinker rod groove 0021 of the broken sinker 002. At this time, the first clamp 120 and the second clamp 220 are respectively wrapped around the outer periphery of the first sinker 001 and the second sinker 003, and are not locked temporarily.

[0061] Rotate the double-ended pawl 323 to adjust the engagement position between the double-ended pawl 323 and the ratchet 322. By reciprocating the operation handle 321, the sleeve is driven to rotate forward around its own axis, thereby causing the first support plate 110 and the second support plate 210 to abut against the bottom of the first weight 001 and the top of the second weight 003, respectively, via a threaded connection. Then, the first clamp 120 and the second clamp 220 are locked.

[0062] Continue swinging the operating handle 321 to drive the first support plate 110 and the second support plate 210, as well as the first clamp 120 and the second clamp 220, to move in opposite directions vertically, thereby applying a lifting force to the first weight 001, which in turn moves the first weight 001 upward and separates it from the broken weight 002. At this time, the distance between the first weight 001 and the second weight 003 is greater than the thickness of the broken weight 002, and the positioning relationship between the first weight 001, the broken weight 002, and the second weight 003 is released. Pull the broken weight 002 out along the weight rod groove 0021 and put a new weight back in its original position. Weights lower than the ground can be handled by a single person, while weights higher than the ground require assistance to pass them to the person.

[0063] Rotating the double-ended pawl 323 changes the meshing position between the double-ended pawl 323 and the ratchet 322. The reciprocating swing of the operating handle 321 drives the sleeve to rotate in the opposite direction around its own axis, thereby driving the first lifting unit 100 and the second lifting unit 200 to move towards each other through the thread, causing the first weight 001 to move down and the weight string to be stacked again.

[0064] Separate the first lifting unit 100 from the first weight 001 and the second lifting unit 200 from the second weight 003 to proceed with the next operation or retrieval. After all replacement steps are completed, remove the tensioner.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A catenary dropper replacement tool, characterized in that, The contact net plummet replacement tool comprises: a first lifting unit (100), a second lifting unit (200) and a supporting unit (300), the first lifting unit (100) and the second lifting unit (200) are connected with the supporting unit (300) respectively; the first plummet (001), the damaged plummet (002) and the second plummet (003) are sequentially arranged from top to bottom; the first lifting unit (100) is connected with the first plummet (001), the second lifting unit (200) is connected with the second plummet (003), and the supporting unit (300) is used for driving the first lifting unit (100) and the second lifting unit (200) to move away from each other.

2. The contact net plummet replacement tool according to claim 1, wherein: the first lifting unit (100) comprises a first supporting plate (110), and the second lifting unit (200) comprises a second supporting plate (210); the first supporting plate (110) and the second supporting plate (210) are inserted into the plummet rod slot (0021) of the damaged plummet (002) and abut against the first plummet (001) and the second plummet (003) respectively, and the axial elongation of the supporting unit (300) is used for driving the first supporting plate (110) and the second supporting plate (210) to move away from each other in the vertical direction so as to drive the first plummet (001) and the second plummet (003) to move away from each other, thereby lifting the first plummet (001).

3. The contact net plummet replacement tool according to claim 1, wherein: the first lifting unit (100) further comprises a first hoop (120), and the second lifting unit (200) further comprises a second hoop (220); the first hoop (120) and the second hoop (220) are respectively sleeved on the first plummet (001) and the second plummet (003), and the axial elongation of the supporting unit (300) is used for driving the first hoop (120) and the second hoop (220) to move away from each other in the vertical direction so as to drive the first plummet (001) and the second plummet (003) to move away from each other, thereby lifting the first plummet (001).

4. The contact net plummet replacement tool according to claim 1, wherein: the supporting unit (300) comprises a linear driving member (310) and a driving mechanism (320), the linear driving member (310) is arranged in the vertical direction and connected with the first lifting unit (100) and the second lifting unit (200) at two ends respectively, and the driving mechanism (320) is used for driving the linear driving member (310) to elongate or shorten in the axial direction so as to drive the first lifting unit (100) and the second lifting unit (200) to move away from each other or move towards each other.

5. The contact net plummet replacement tool according to claim 4, wherein: The linear driving member (310) is arranged as a sleeve, the first lifting unit (100) and the second lifting unit (200) are respectively threadedly connected to two ends of the sleeve, and the screw rotation directions are opposite; The sleeve rotates around its own axis to drive the first lifting unit (100) and the second lifting unit (200) to move towards or away from each other.

6. The contact net plummet replacement tool according to claim 5, characterized in that: The driving mechanism (320) comprises an operation handle (321), the operation handle (321) is sleeved on the sleeve, and the sleeve is driven to rotate around its own axis.

7. The contact net plummet replacement tool according to claim 6, characterized in that: The driving mechanism (320) further comprises a ratchet wheel (322), a double-end pawl (323) and a torsional spring, the ratchet wheel (322) is installed on the sleeve, the double-end pawl (323) is rotatably installed on the operation handle (321) and is engaged with the ratchet wheel (322); The operation handle (321) can drive the sleeve to rotate through the double-end pawl (323) and the ratchet wheel (322); The sleeve can only be driven to rotate in one direction by the operation handle (321), and when reversely rotating, the double-end pawl (323) is disengaged from the ratchet wheel (322) against the elastic force of the torsional spring; The double-end pawl (323) is rotated to change the engagement position of the double-end pawl (323) and the ratchet wheel (322), so that the sleeve is positively rotated or reversely rotated under the reciprocating swing of the operation handle (321).

8. The contact net plummet replacement tool according to claim 4, characterized in that: The linear driving member (310) is arranged as an electric push rod, and the driving mechanism (320) is arranged as an electric motor, the electric motor drives the electric push rod to elongate to apply a pushing force to the first lifting unit (100).

9. The contact net plummet replacement tool according to claim 4, characterized in that: The first lifting unit (100) further comprises a first supporting ring (130), and the second lifting unit (200) further comprises a second supporting ring (230), the first supporting ring (130) and the second supporting ring (230) are both sleeved on the linear driving member (310).

10. The contact net plummet replacement tool according to claim 4, characterized in that: Further comprising a limiting plate (400), the limiting plate (400) is provided with a sliding groove (401) extending along the axis direction of the linear driving member (310), and the first lifting unit (100) and the second lifting unit (200) are both inserted into the sliding groove (401) and slide along the sliding groove (401).

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