Rigid contact line reinforcing method

Abstract

The invention provides a rigid contact line reinforcing method, which comprises the following steps of: S101, detecting a contact line on a busbar to be detected, and confirming an abrasion area of the abraded contact line on the busbar; s102, reinforcing modules are installed on the two sides of the busbar; s103, reinforcing contact lines are fixed on the two sides of the busbar in a mirror image mode through a reinforcing module, and then the reinforcing contact lines are adjusted to be parallel to the abrasion contact lines; when the train runs, the top of the carbon sliding plate slides from the unworn position on the wear contact line to the reinforcing contact line and then slides to the unworn position on the wear contact line so as to avoid the wear area of the wear contact line. The problem that manpower and material resources are seriously consumed when an abraded contact line is integrally replaced is solved, and the operation convenience and efficiency of remedying the abraded contact line are improved.

Description

Technical Field

[0001] This invention relates to the field of contact wire technology for rail transit, and more specifically, to a method for reinforcing rigid contact wires. Background Technology

[0002] In the field of rail transit, rigid suspension catenary systems, with their unique structural design and performance advantages, have become an important component of modern rail transit. This system achieves an axial tension-free design by securely clamping the contact wire to the busbar, thus avoiding the risk of wire breakage due to tension variations. Compared to flexible catenary systems, rigid catenary systems are not only simpler in structure but also require less maintenance, effectively reducing operating costs. However, with the increasing busyness of rail transit operations, rigid suspension catenary systems also face some challenges.

[0003] During the operation of electric multiple unit (EMU) trains, the rigid suspension catenary system achieves current collection through the sliding contact between the pantograph carbon plate and the contact wire. However, due to the inelastic characteristics of the rigid suspension busbar, it cannot effectively counteract the lifting force generated by the pantograph, leading to mechanical wear between the pantograph and the catenary. This wear problem is particularly severe under dynamic conditions such as train acceleration. This not only affects the service life of the catenary but also poses a threat to the safe operation of rail transit. Currently, for areas with severe contact wire wear, the entire anchor section is typically replaced. However, this method is not only costly and inefficient but also affects the operational efficiency of the line. Therefore, developing a safe, convenient, and efficient partial replacement technology has become an important issue in the current rail transit field. Summary of the Invention

[0004] This invention provides a method for reinforcing rigid contact wires, aiming to solve the problem of severe manpower and material losses when replacing worn contact wires as a whole, and to improve the convenience and efficiency of repairing worn contact wires.

[0005] To achieve the above objectives, the present invention provides a method for reinforcing rigid contact lines, comprising:

[0006] Step S101: Inspect the contact wires on the busbar to identify the wear area of ​​the worn contact wires on the busbar.

[0007] Step S102: Install the reinforcement modules on both sides of the busbar;

[0008] Step S103: Fix the reinforcing contact line on both sides of the busbar by mirroring it with the reinforcing module, and then adjust the reinforcing contact line to make it parallel to the wear contact line.

[0009] When the train is moving, the top of the carbon sliding plate slides from the unworn part of the worn contact line to the reinforcing contact line and then back to the unworn part of the worn contact line to avoid the worn area of ​​the worn contact line.

[0010] In one embodiment, two reinforcing contact lines are provided, with the two reinforcing contact lines placed on both sides of the wear contact line.

[0011] In one embodiment, the height between the two reinforcing contact lines and the top of the busbar is greater than the height between the wear contact line and the top of the busbar, and the ends of the two reinforcing contact lines cooperate with the carbon slide plate.

[0012] In one embodiment, the ends of the reinforcing contact line are configured to curve upwards from bottom to top, with a smooth middle portion, and the curves at both ends are mirror images of the centerline of the reinforcing contact line.

[0013] In one embodiment, the end of the carbon slide plate passes through a raised end, a smooth portion, and a raised end at the other end of the reinforcing contact line in sequence to achieve contact between the carbon slide plate and the reinforcing contact line.

[0014] In one embodiment, the distance between the carbon slide plate and the reinforcing contact line is less than the distance between the carbon slide plate and the wear contact line.

[0015] In one embodiment, the carbon skateboard uses a lifting unit to achieve lifting.

[0016] In one embodiment, when installing the reinforcement module, it is necessary to ensure that both ends of the reinforcement contact wire extend beyond the abnormal wear zone.

[0017] In one embodiment, the reinforcing contact wires are of equal length and the same type, so that the worn contact wire is suspended.

[0018] In one embodiment, the carbon skateboard is made of aluminum alloy.

[0019] The present invention has the following beneficial effects:

[0020] 1. Easy to operate: This reinforcement method meets the reinforcement requirements within the range of abnormal wear length of different rigid suspension contact lines. It is easy to operate and does not require the replacement of the entire worn contact line, thus further improving the efficiency of repairing worn contact lines.

[0021] 2. Versatility: This reinforcement method meets the reinforcement requirements within the range of abnormal wear lengths of different rigid suspension contact lines when used, and is compatible with different structural installation forms of rigid suspension points. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the rigid contact line reinforcement device according to an embodiment of the present invention;

[0023] Figure 2 This is a front view schematic diagram of a rigid contact line reinforcement device according to an embodiment of the present invention;

[0024] Figure 3 for Figure 2 Sectional view of AA;

[0025] Figure 4 This is a schematic diagram of the structure of a snap-fit ​​block according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the upturned transition section according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the straight section according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of a connecting block according to an embodiment of the present invention;

[0029] Figure 8 for Figure 2 Enlarged schematic diagram of the middle section structure;

[0030] Figure 9 This is a schematic diagram of a reinforcement module including N second straight units according to an embodiment of the present invention;

[0031] Figure 10 This is a schematic diagram of the bus structure according to an embodiment of the present invention;

[0032] Figure 11 This is a flowchart of a rigid contact line reinforcement method according to an embodiment of the present invention;

[0033] Figure 12 This is a detailed implementation process of a rigid contact line reinforcement method according to an embodiment of the present invention.

[0034] Among them, there is a busbar 1; a reinforcing module 2; a raised transition section 21; a straight section 22; a wear contact line 3; a snap-fit ​​block 4; a connecting block 5; a gap 6; a gap A side 61; a gap B side 62; a reinforcing contact line 7; a slot 8; a hollow hole 9; and a carbon slide plate 10. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. The described embodiments are some embodiments of this application, but not all embodiments. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0036] Figure 1 , Figure 2 , Figure 3 This is a schematic diagram of a rigid contact wire reinforcement device according to an embodiment of the present invention. The rigid contact wire reinforcement device includes:

[0037] The reinforcement module 2 includes a straight section 22, a curved transition section 21, and a reinforcement contact line 7. The two ends of the straight section 22 correspond to the straight portions of the curved transition section 21, and the straight section 22 and the straight portions of the two curved transition sections 21 are connected to the busbar 1. A gap 6 is provided between the connecting portions, and the reinforcement contact line 7 is built into the gap 6. The height between the reinforcement contact line 7 and the top of the busbar 1 is greater than the height between the original contact line on the busbar 1 and the top of the busbar 1.

[0038] Specifically, in one embodiment, two reinforcing contact lines 7 are provided. The two reinforcing contact lines 7 are of equal length and the same type. The length of the reinforcing contact line 7 is greater than the length of the wear area on the wear contact line 3.

[0039] Reinforcing module 2 can be made of aluminum alloy, such as Figure 5 , Figure 6 As shown, the straight sections of the straight section 22 and the two upturned transition sections 21 are respectively the second straight unit and the first straight unit described below.

[0040] In one embodiment, the upturned transition section 21 includes an upturned unit and a first flat unit, wherein the upturned unit is upturned from bottom to top relative to the first flat unit.

[0041] In one embodiment, the angle formed by the upturned unit of the upturned transition section 21 and the busbar 1 is 2° to 5°, and in one example, it is 2.67°.

[0042] Specifically, the upturned unit of the transition section 21 is an upward-facing angle-of-attack upturned unit, and the included angle of the upturned unit of the transition section 21 is 2.67°. The upward-facing angle-of-attack upturned unit refers to the direction from the bottom plane of the straight part in the transition section 21 as the reference plane to the top of the busbar 1. The purpose is to avoid abnormal impact between the carbon slide plate 10 and the reinforcing contact line 7, and to ensure a smooth transition without damaging the carbon slide plate 10. Figure 10 As shown, the included angle at the end of the busbar 1 is also 2.67°, which is to ensure that the carbon slide plate 10 passes smoothly when it passes through the intersection of adjacent anchor sections of the rigid contact line.

[0043] In one embodiment, the straight section 22 includes a second straight unit, the two ends of which correspond to the first straight unit in the upturned transition section 21.

[0044] In one embodiment, such as Figure 9 As shown, the straight section 22 includes N second straight units, where N≥2, the N second straight units are aligned end to end, and the ends of the second straight units at both ends correspond to the first straight units in the upturned transition section 21.

[0045] In one embodiment, the second straight unit of the straight section 22 and the first straight unit of the two upturned transition sections 21 are connected to the busbar 1 via a connector, and the gap 6 is provided between the connector and the busbar 1.

[0046] In one embodiment, such as Figure 4 , Figure 7 , Figure 8 As shown, the connector includes a snap-fit ​​block 4 and a connecting block 5. The busbar 1 is provided with a bayonet, the snap-fit ​​block 4 is snapped into the bayonet, the connecting block 5 is connected to the snap-fit ​​block 4, and the connecting block 5 is located on the outer top of the bayonet. The first straight unit and the second straight unit are both placed on the connecting block 5 by bolts.

[0047] Specifically, such as Figure 4 As shown, the snap-fit ​​block 4 is provided with a snap-fit ​​groove 8, which snaps into the snap-fit ​​opening, and the connecting block 5 is connected to the snap-fit ​​block 4 by bolts.

[0048] In one embodiment, the gap 6 is located between the first straight unit or the second straight unit and the snap-fit ​​block 4.

[0049] Specifically, the gap 6 is located between the straight portion of the straight section 22 or the upturned transition section 21 and the snap-fit ​​block 4. That is, the bottom end of the side wall of the straight portion of the straight section 22 or the upturned transition section 21 is provided with gap B side 62, and the bottom end of the side wall of the snap-fit ​​block 4 is provided with gap A side 61. When the straight section 22 or the two upturned transition sections 21 are connected to the snap-fit ​​block 4, the gap 6 is formed by the gap A side 61 and the gap B side 62. The reinforcing contact line 7 is placed in the gap 6. The height value between the two reinforcing contact lines 7 and the top of the busbar 1 is greater than the height value between the wear contact line 33 and the top of the busbar 1.

[0050] In one embodiment, a bolt is provided between the connecting block 5 and the snap-fit ​​block 4.

[0051] In one embodiment, the snap-fit ​​block 4, the straight section 22, and the two upturned transition sections 21 are all provided with hollow holes 9.

[0052] Specifically, the snap-fit ​​block 4, the straight section 22 and the two upturned transition sections 21 are all provided with hollow holes 9, in order to meet the requirements of ease of use such as simplicity, lightness, easy installation and replacement.

[0053] In one embodiment, the length of the reinforcing module 2 can be 50cm, and the weight of each individual part does not exceed 700g.

[0054] When used, the rigid contact wire reinforcement device meets the universal structural installation requirements of different models of rigid suspension contact wire busbar 1. When the reinforcement device is used, it must meet the matching requirements of electrical and mechanical performance when connected with the existing busbar 1.

[0055] When in use, this reinforcement device meets the reinforcement requirements within the range of abnormal wear lengths of different rigid suspension contact lines, and is compatible with the structural installation forms of different rigid suspension points.

[0056] When using this reinforcement device, it is important to consider its compatibility with the subway pantograph to ensure a smooth transition when the pantograph passes through locations with severe wear, such as rigid suspension exits and acceleration flow sections.

[0057] When in use, the reinforcement device shall comply with the insulation clearance of the overhead contact line equipment: 115mm between live metal and ground wire; 100mm between live metal and cement components.

[0058] In one embodiment, such as Figure 9 As shown, the straight section 22 includes N second straight units, N≥2, the N straight sections are aligned end to end, and the ends of the straight sections at both ends correspond to the straight sections in the upturned transition section 21. A number of second straight units can be configured according to the overall length requirements of the reinforcement section, so as to better adapt to the reinforcement requirements of different length wear areas.

[0059] Figure 11 This is a flowchart of a rigid contact wire reinforcement method according to an embodiment of the present invention, including:

[0060] Step S101: Inspect the contact wires on the busbar to identify the wear area of ​​the worn contact wires on the busbar.

[0061] Step S102: Install the reinforcement modules on both sides of the busbar;

[0062] Step S103: Fix the reinforcing contact line on both sides of the busbar by mirroring it with the reinforcing module, and then adjust the reinforcing contact line to make it parallel to the wear contact line.

[0063] Figure 12 This is a flowchart illustrating the specific implementation of the carbon sliding plate sequentially contacting the worn contact line, the reinforcing contact line, and the worn contact line in this invention. When the train is moving, the top of the carbon sliding plate slides from an unworn position on the worn contact line to the reinforcing contact line and then back to an unworn position on the worn contact line, thus avoiding the worn area of ​​the worn contact line.

[0064] Preferably, two reinforcing contact lines are provided, and the two reinforcing contact lines are placed on both sides of the wear contact line.

[0065] Preferably, the height between the two reinforcing contact lines and the top of the busbar is greater than the height between the wear contact line and the top of the busbar, and the ends of the two reinforcing contact lines cooperate with the carbon slide plate.

[0066] During maintenance, the wear area of ​​the wear contact line 3 on the busbar 1 is identified. Two reinforcing contact lines 7 are mirror-installed on both sides of the busbar 1 using the aforementioned reinforcing module 2. The two reinforcing contact lines 7 are parallel to the wear contact line 3, and the wear area on the wear contact line 3 is located between the two reinforcing contact lines 7. The height between the two reinforcing contact lines 7 and the top of the busbar 1 is greater than the height between the wear contact line 3 and the top of the busbar 1. The ends of the two reinforcing contact lines 7 cooperate with the carbon sliding plate 10 made of aluminum alloy, so that the top of the carbon sliding plate 10 slides from the wear contact line 3 to the reinforcing contact line 7 and then back to the wear contact line 3, thereby avoiding the wear area of ​​the wear contact line 3.

[0067] Preferably, the ends of the reinforcing contact line are configured to curve upwards from bottom to top, with a smooth middle section, and the curves at both ends are mirror images of the centerline of the reinforcing contact line.

[0068] Preferably, the ends of the carbon slide plate pass through a raised end, a smooth portion, and a raised end on the other end of the reinforcing contact line in sequence to achieve contact between the carbon slide plate and the reinforcing contact line.

[0069] Preferably, the distance between the carbon sliding plate and the reinforcing contact line is smaller than the distance between the carbon sliding plate and the wear contact line.

[0070] Preferably, the carbon skateboard uses a lifting unit to achieve lifting.

[0071] Preferably, when installing the reinforcement module, it is necessary to ensure that both ends of the reinforcement contact line extend beyond the abnormal wear zone.

[0072] Preferably, the reinforcing contact wires are of equal length and the same type, so that the worn contact wires are suspended.

[0073] Preferably, the carbon skateboard is made of aluminum alloy.

[0074] The ends of each reinforcing contact line 7 are designed to be raised from bottom to top, and the raised ends are mirror images of the center line of the reinforcing contact line 7. The carbon slide plate 10 makes contact with the reinforcing contact line 7 by passing through the raised end, the smooth part, and the raised end of the reinforcing contact line 7 in sequence. It should be noted that, since the reinforcing contact line 7 has different shapes such as raised and smooth, and there is a distance between the raised part of the reinforcing contact line 7 and the wear contact line 3, the carbon slide plate 10 adopts a lifting mechanism to achieve its lifting.

[0075] The length of the reinforcing contact line must be greater than the length of the wear area on the wear contact line 3. In addition, when installing the reinforcing module 2, it is necessary to ensure that both ends of the reinforcing contact line 7 on the reinforcing module 2 extend beyond the abnormal wear area.

[0076] This application mainly involves adding two new contact lines of equal length and identical model, namely reinforcing contact lines 7, to the left and right sides of the worn contact line 3 section, which has already experienced abnormal wear. This is done to suspend the worn contact line 3, meaning the distance between the carbon sliding plate 10 and the reinforcing contact line 7 is less than the distance between the carbon sliding plate 10 and the worn contact line 3. As a result, the carbon sliding plate 10 no longer slides against the worn contact line 3 in this section, but instead slides against the reinforcing contact line 7, ultimately extending the service life of the local contact line in this section.

[0077] The present invention has the following beneficial effects:

[0078] 1. Easy to operate: This reinforcement method meets the reinforcement requirements within the range of abnormal wear length of different rigid suspension contact lines. It is easy to operate and does not require the replacement of the entire worn contact line, thus further improving the efficiency of repairing worn contact lines.

[0079] 2. Versatility: This reinforcement method meets the reinforcement requirements within the range of abnormal wear lengths of different rigid suspension contact lines when used, and is compatible with different structural installation forms of rigid suspension points.

[0080] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0081] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. It should also be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Furthermore, features described with reference to certain examples may be combined in other examples.

[0082] Furthermore, it should be noted that, unless otherwise explicitly stated and limited, the terms "connection," "driving," and similar terms used in the description of this application should be interpreted broadly. They can refer to direct connections, connections through an intermediate medium, or relationships within two elements. Those skilled in the art can understand their specific meaning in this application based on the specific circumstances. In this document, terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0083] The above embodiments are provided for those skilled in the art to implement or use this application. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the spirit of this application. Therefore, the scope of protection of this application is not limited to the above embodiments, but should be the maximum scope that conforms to the innovative features mentioned in the claims.

Claims

1. A method for reinforcing rigid contact lines, characterized in that, The rigid contact line reinforcement method includes: Step S101: Inspect the contact wires on the busbar to identify the wear area of ​​the worn contact wires on the busbar. Step S102: Install the reinforcement modules on both sides of the busbar; Step S103: Fix the reinforcing contact line on both sides of the busbar by mirroring it with the reinforcing module, and then adjust the reinforcing contact line to make it parallel to the wear contact line. When the train is moving, the top of the carbon sliding plate slides from the unworn part of the worn contact line to the reinforcing contact line and then back to the unworn part of the worn contact line to avoid the worn area of ​​the worn contact line.

2. The rigid contact line reinforcement method according to claim 1, characterized in that, Two reinforcing contact lines are provided, and the two reinforcing contact lines are placed on both sides of the worn contact line.

3. The rigid contact line reinforcement method according to claim 2, characterized in that, The height between the two reinforcing contact lines and the top of the busbar is greater than the height between the wear contact line and the top of the busbar, and the ends of the two reinforcing contact lines cooperate with the carbon slide plate.

4. The rigid contact line reinforcement method according to claim 3, characterized in that, The ends of the reinforcing contact line are designed to curve upwards from bottom to top, with a smooth middle section. The curves at both ends are mirror images of the centerline of the reinforcing contact line.

5. The rigid contact line reinforcement method according to claim 4, characterized in that, The ends of the carbon slide plate pass through a raised end, a smooth section, and a raised end on the other end of the reinforcing contact line in sequence to achieve contact between the carbon slide plate and the reinforcing contact line.

6. The rigid contact line reinforcement method according to claim 5, characterized in that, The distance between the carbon sliding plate and the reinforcing contact line is less than the distance between the carbon sliding plate and the wear contact line.

7. The rigid contact line reinforcement method according to claim 1, characterized in that, The carbon skateboard uses a lifting unit to achieve lifting.

8. The rigid contact line reinforcement method according to claim 1, characterized in that, When installing the reinforcement module, it is necessary to ensure that both ends of the reinforcement contact wire extend beyond the abnormal wear zone.

9. The rigid contact wire reinforcement method according to claim 1, characterized in that, The reinforcing contact wires are of equal length and the same type, so that the worn contact wires are suspended.

10. The rigid contact line reinforcement method according to claim 1, characterized in that, The carbon skateboard is made of aluminum alloy.

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