Cable cutting-off device and method suitable for railway area three-electric transfer change

Abstract

The invention discloses a cable cutting device and method suitable for railway area three-electric transfer change, and belongs to the technical field of railway engineering construction, a supporting mechanism can be arranged in a railway line, the supporting mechanism comprises a climbing component and a cable supporting component, one end of the climbing component can be fixed, and the other end of the climbing component extends in the vertical direction. And the cable supporting member is higher than the carrier cable. The sliding guide mechanism comprises a limiting supporting component, and a sliding guide groove is formed in the limiting supporting component. The two supporting mechanisms can be arranged on the two sides of the contact net correspondingly, and the limiting supporting components are arranged in the transverse direction. According to the cable cutting-off device and method suitable for the three-electric-transfer change in the railway area, effective supporting before and after cable cutting can be formed, so that the free end of the cut cable can be prevented from being rubbed with a carrier cable of a contact network in the sliding process caused by the self weight, and the cable cutting-off effect is improved. And the safety and the stability of the power supply facility of the railway line are further ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of railway engineering construction, and particularly relates to a cable cutting device and method applicable to the relocation of the three major utilities (power, communication, and signal) in the railway area. Background Art

[0002] In the railway line area of large railways such as high-speed railways, there are high-voltage towers arranged around the railway line area. The height of the high-voltage iron tower is usually higher than the railway line, and there are cables passing through the railway line area around the high-voltage tower. At the same time, since the length of the cable between two adjacent high-voltage towers is relatively long, during the relocation process of the cable between two adjacent high-voltage towers, it is necessary to cut the cable in the middle to facilitate the recycling and relocation of the cable.

[0003] In the existing related technologies, for the relocation work of the cable spanning above the railway line, it is usually necessary to first set up a scaffold to support the cable outside the railway line and erect a ladder in the railway area. Then, the staff climbs up the ladder to perform a shearing operation on the cable in the air to achieve the cutting of the cable.

[0004] During this process, due to the existence of power supply facilities such as catenaries around the railway line, after the cable is cut, one end of the cable is fixed on the scaffold, and the other end of the cable is in a free movement state. Therefore, during the falling process of the cable, it will rub against the carrier cable of the catenary, and then cause damage to the carrier cable of the catenary. Moreover, setting up an additional scaffold around the railway will not only increase the construction cost and construction period, but also there will be situations such as the collapse of the scaffold and then intrusion into the railway line limit, which has a certain risk. Summary of the Invention

[0005] In view of one or more of the above-mentioned defects or improvement requirements of the prior art, the present invention provides a cable cutting device and method applicable to the relocation of the three major utilities in the railway area, which can form effective support before and after the cable is cut, so that the free end of the cable after cutting can avoid rubbing against the carrier cable of the catenary during the sliding process caused by its own weight, thereby ensuring the safety and stability of the power supply facilities of the railway line.

[0006] To achieve the above object, the present invention provides a cable cutting device applicable to the relocation of the three major utilities in the railway area, which is used to support and cut the cable spanning the railway line to prevent the free end of the cut cable from sliding and rubbing against the carrier cable of the catenary; it includes:

[0007] Support mechanism, the support mechanism can be arranged in the railway line, and the support mechanism includes a telescopic climbing member and a cable support member arranged at the top of the climbing member. One end of the climbing member can be fixed in the railway line, and the other end of the climbing member extends vertically for staff to climb; and the vertical height of the cable support member is higher than the vertical height of the catenary for supporting the cable.

[0008] Sliding guiding mechanism, the sliding guiding mechanism includes a limiting support member, and a sliding guide groove is formed transversely through the limiting support member for supporting and limiting the movement of the free end of the cable; a cable limiting groove is formed transversely on the cable support member, and a clamping fastener is arranged in the cable limiting groove for detachably limiting the cable.

[0009] Cutting mechanism, the cutting mechanism is used for cutting off the cable.

[0010] The two support mechanisms can be respectively arranged on the two sides of the catenary. The limiting support member is arranged transversely, and the two transverse sides of the limiting support member are detachably installed on the top end surface of the climbing member.

[0011] As a further preference of the present invention, a support platform parallel to the horizontal plane is arranged at the top of the climbing member, and the cable support member is fixedly installed on the top end surface of the support platform.

[0012] As a further preference of the present invention, a plurality of sliding structures are arranged at intervals transversely on the inner wall surface of the sliding guide groove for reducing the sliding wear between the cable and the inner wall surface of the sliding guide groove.

[0013] As a further preference of the present invention, each of the sliding structures is uniformly arranged in an array on the inner wall surface of the sliding guide groove.

[0014] As a further preference of the present invention, the climbing member is a folding ladder or a straight ladder.

[0015] As a further preference of the present invention, the climbing member is the folding ladder, and the folding ladder includes two single-sided ladders detachably connected. A detachable connection component is arranged at the top of the two single-sided ladders for detachably connecting the two single-sided ladders; and the two single-sided ladders straddle both sides of the catenary.

[0016] As a further preference of the present invention, the climbing member is a straight ladder, a support platform is arranged at the top of the straight ladder, and a catenary limiting groove extending longitudinally is arranged on the bottom end surface of the support platform.

[0017] As a further preference of the present invention, the cutting mechanism is arranged on the top surface of the support platform, and the cutting mechanism is located on the side of the cable support member facing the limit support member.

[0018] As a further preference of the present invention, the cutting mechanism includes a manual hydraulic pliers or an automatic cutting assembly for cutting the cable.

[0019] The present invention also discloses a cable truncation method applicable to the relocation of the three types of power (electricity, telegraph, and telephone) in the railway area, including the following steps:

[0020] Loosen the cable between the two high-voltage towers until the cable drops above the catenary;

[0021] Arrange support mechanisms on both sides of the two catenaries, and support the cable through the limit support members at the tops of the support mechanisms;

[0022] Arrange a sliding guiding mechanism between two adjacent support mechanisms, and place the cable between the two support mechanisms into the sliding guide groove of the sliding guiding mechanism; set a clamping fastener on the limit support member, and clamp the cable in the sliding guide groove;

[0023] Cut the cable on one side of the support mechanism, and the two free ends of the cable slide freely from both sides of the catenary at the break point or slide along the sliding guiding mechanism;

[0024] Remove the support mechanism to complete the relocation of the cable in the railway area.

[0025] Generally speaking, compared with the prior art, the beneficial effects of the above technical solutions conceived by the present invention include:

[0026] (1) The cable cutting device for the three-electricity relocation in the railway area of ​​the present invention comprises a supporting mechanism and a sliding guide mechanism. The supporting mechanism can be arranged in the railway line, and the supporting mechanism comprises a climbing member and a cable supporting member arranged on the top of the climbing member. One end of the climbing member can be fixed in the railway line, and the other end of the climbing member extends vertically for workers to climb. The vertical height of the cable supporting member is higher than the vertical height of the load-bearing cable, and is used to support the cable. The sliding guide mechanism comprises a limiting support member, and a sliding guide groove running through the limit support member in the horizontal direction is provided on the limit support member, which is used to support the movement of the free end of the limit cable. The two supporting mechanisms can be arranged on both sides of the contact network respectively, and the limiting support member is arranged in the horizontal direction, and the two horizontal sides of the limiting support member can be detachably mounted on the top surface of the climbing member. The three-electricity relocation cutting device can form effective support for the cable before and after cutting, so that the free end of the cable after cutting can avoid friction with the load-bearing cable of the contact network during the sliding process caused by its own weight, thereby ensuring the safety and stability of the power supply facilities of the railway line.

[0027] (2) The cable cutting device of the present invention, which is applicable to the relocation of three power systems in railway areas, is provided with a manual hydraulic clamp or an automatic cutting assembly on the support platform, so that the staff can conveniently cut the cable by the manual hydraulic clamp or the automatic cutting assembly after the cable is limited. At the same time, by providing at least one guide rod and a guide hole between the tool support and the mobile tool, and combining with the tool guide groove provided on the support platform, the mobile tool can accurately cut the cable under the guidance of the guide rod, thereby improving the construction convenience of cable cutting.

[0028] (3) The cable cutting device and method for the three-electric relocation in the railway area of ​​the present invention have a simple structure, are easy to use, and have stable support. By adopting a retractable climbing member and a support platform with a cable support member arranged on the top of the climbing member, the top of the cable support member can support the cable to a position higher than the load-bearing cable, thereby avoiding sliding friction between the free end of the cable and the load-bearing cable below the cable support member during the sliding process, and avoiding friction damage to the load-bearing cable, the suspension string and the contact network. At the same time, by providing a limiting support member with a sliding guide groove between two adjacent support mechanisms, the free end of the cable can be guided and limited by the sliding guide groove to avoid large swings of the free end of the cable during the sliding process, thereby ensuring the safety of personnel and equipment around the support mechanism. At the same time, by detachably providing a clamping fastener at the end of the cable support member, the cable support member can achieve stable limiting clamping of the cable, thereby avoiding irregular shaking of the cable during free movement, further ensuring the safety of surrounding equipment and personnel, and has good promotion prospects and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the cable cutting device applicable to the relocation of the three utilities (power, electricity, and communication) in the railway area in the embodiment of the present invention;

[0030] Figure 2 It is a schematic diagram of the overall structure of the second embodiment of the cable cutting device applicable to the relocation of the three utilities (power, electricity, and communication) in the railway area in the embodiment of the present invention;

[0031] Figure 3 It is a schematic diagram of the support mechanism structure of the first embodiment of the cable cutting device applicable to the relocation of the three utilities (power, electricity, and communication) in the railway area in the embodiment of the present invention;

[0032] Figure 4 It is a schematic diagram of the support mechanism structure of the second embodiment of the cable cutting device applicable to the relocation of the three utilities (power, electricity, and communication) in the railway area in the embodiment of the present invention;

[0033] Figure 5 It is a schematic diagram of the structure of the sliding and guiding mechanism of the cable cutting device applicable to the relocation of the three utilities (power, electricity, and communication) in the railway area in the embodiment of the present invention;

[0034] Figure 6 It is a flowchart of the cable cutting method applicable to the relocation of the three utilities (power, electricity, and communication) in the railway area in the embodiment of the present invention.

[0035] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0036] 1. Catenary; 2. Contact rail; 3. Suspension wire; 4. Cable; 5. Support mechanism; 6. Sliding and guiding mechanism; 7. Cutting mechanism;

[0037] 501. Support platform; 502. Cable support member; 503. Cable limiting groove; 504. Clamping fastener; 505. Single-sided ladder; 506. Straight ladder; 507. Locking pin; 508. Catenary limiting member; 509. End limiting groove; 510. Positioning pin;

[0038] 601. Limiting support member; 602. Sliding guide groove; 603. Sliding structure; 604. Guiding and limiting fastener; 605. Fixed base; 606. Positioning hole;

[0039] 701. Fixed cutter; 702. Moving cutter; 703. Cutter support; 704. Driver; 705. Cutter guiding groove. Detailed implementation manners

[0040] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0042] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0043] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0045] Embodiment:

[0046] Please refer to Figures 1 to 6 , in the preferred embodiment of the present invention, the cable cutting device and method applicable to the relocation of the three power systems in the railway area can effectively support the cable 4 before and after cutting, so that during the sliding process of the free end of the cable 4 caused by its own weight, it can avoid friction with the carrier cable 1 of the catenary, thereby ensuring the safety and stability of the power supply facilities of the railway line.

[0047] Specifically, as shown in Figures 1 to 5 , in the preferred embodiment of the present application, the three-power-relocation cutting device includes a support mechanism 5 and a sliding guide mechanism 6. Among them, the support mechanism 5 can be arranged in the railway line to stably support the cable 4. At the same time, the support mechanism 5 includes a climbing member and a cable support member 502 arranged at the top of the climbing member. One end of the climbing member can be fixed in the railway line, and at the same time, the other end of the climbing member extends vertically, so that the staff can climb to the construction height through the climbing member. The vertical height of the cable support member 502 is higher than the vertical height of the carrier cable 1, so that the cable support member 502 can support the cable 4 and prevent the free end of the cable 4 from sliding and rubbing against the carrier cable 1 located below the cable support member 502 after the cable 4 is cut.

[0048] The sliding guide mechanism 6 includes a limit support member 601, and a sliding guide groove 601 penetrating horizontally is provided on the limit support member 601 for supporting and limiting the movement of the free end of the cable 4. Further, the two support mechanisms 5 can be respectively arranged on both sides of the catenary. At the same time, the limit support member 601 is arranged horizontally, and the two horizontal sides of the limit support member 601 are detachably installed on the top surface of the climbing member.

[0049] The cutting mechanism 7 is provided to realize stable cutting of the cable 4.

[0050] During actual use, the support mechanisms 5 are synchronously installed on both sides of the two catenaries, and the cable support members 502 on the two support mechanisms 5 are used to stably support the cable 4. At the same time, the cable 4 located between the two cable support members 502 is limited and installed in the sliding guide groove 601 of the limit support member 601, so that after the cable 4 is disconnected, one end of the cable 4 can move stably through the sliding guide groove 601.

[0051] It should be noted that in the preferred embodiment of the present application, in the horizontal plane, the extending direction along the railway line is longitudinal, and the extending direction of the catenary is also longitudinal. At the same time, in the horizontal plane, the direction perpendicular to the longitudinal direction is transverse. The direction perpendicular or plumb to the horizontal plane is vertical. Further, the catenary includes a messenger wire 1 and a contact rail 2. The messenger wire 1 and the contact rail 2 are arranged in parallel, and the messenger wire 1 is higher than the contact rail 2. At the same time, the messenger wire 1 and the contact rail 2 are fixedly connected by a plurality of suspension wires 3 arranged at intervals along the longitudinal direction.

[0052] Further, in the preferred embodiment of the present application, a support platform 501 parallel to the horizontal plane is provided at the top of the climbing member. At the same time, a cable support member 502 is fixedly installed on the top end surface of the support platform 501, so as to ensure that the cable support member 502 can stably support the cable 4.

[0053] More preferably, in the preferred embodiment of the present application, a cable limiting groove 503 extending in the transverse direction is formed on the cable support member 502. At the same time, a clamping fastener 504 is arranged on the cable limiting groove 503. During actual use, the cable 4 hangs down from above the catenary. At this time, the clamping fastener 504 on the cable limiting groove 503 releases the blockage of the top of the cable limiting groove 503, so that the cable 4 can be embedded into the cable limiting groove 503. Then, the top of the cable limiting groove 503 is blocked by the clamping fastener 504, so as to limit the movement of the free end after the cable 4 is cut.

[0054] More specifically, in the preferred embodiment of the present application, the cable support member includes a support plate perpendicular to the top end surface of the support platform 501. At the same time, a cable limiting groove 503 in the shape of a semi-cylindrical groove is formed at the top of the support plate. The cable limiting groove 503 extends in the transverse direction and penetrates the support plate. Correspondingly, one end of the clamping fastener 504 is hinged to the support plate on one side of the cable limiting groove 503, and the other end of the clamping fastener 504 is detachably connected to the support plate through a pin structure. Preferably, a vertical embedding groove and a locking hole penetrating the plate body are formed on the support plate. The clamping fastener 504 is embedded into the vertical embedding groove, and the pin sequentially passes through the locking hole and the clamping fastener 504, so as to realize the detachable connection between the end of the clamping fastener 504 and the support plate. Preferably, the clamping fastener 504 is in a semi-circular ring structure.

[0055] Of course, the limit between the clamping fastener 504 and the support plate is not limited to the above structural form. The clamping fastener 504 can be laid on the top end surface of the support plate, and the detachable fixation between the support plate and the clamping fastener 504 can be realized by bolts or pins.

[0056] Further, in a preferred embodiment of the present application, a plurality of cable sliding components are provided on the inner wall surface of the cable limiting groove 503. Preferably, the cable sliding components are arranged in an array on the inner wall surface of the cable limiting groove 503 to reduce the friction between the cable limiting groove 503 and the cable 4. Preferably, the cable sliding component is a sliding coating or a sliding roller.

[0057] Further, in a preferred embodiment of the present application, the climbing member is a telescopic multi-stage ladder. Preferably, the multi-stage ladder is an A-frame ladder or a straight ladder 506. Further preferably, the A-frame ladder or the straight ladder 506 can be telescopically extended in the vertical direction to ensure that the climbing member can lift the cable support member 502 to a height higher than that of the catenary 1, thereby ensuring that the cable support member 502 can form a support for the cable 4.

[0058] Preferably, a bottom plate is provided on the bottom end surface of the A-frame ladder or the straight ladder 506 to increase the contact area at the bottom of the A-frame ladder or the straight ladder 506, thereby enhancing the stability at the bottom of the A-frame ladder or the straight ladder 506. Further preferably, a plurality of anti-slip grooves or anti-slip teeth are provided on the bottom end surface of the bottom plate to further enhance the stability of the bottom plate and further improve the safety and reliability of the A-frame ladder or the straight ladder 506.

[0059] Alternatively, in another preferred embodiment of the present application, a movable trolley capable of traveling on the rail is provided at the bottom of the A-frame ladder or the straight ladder 506. Preferably, the movable trolley can be locked on the rail. Further preferably, the movable trolley is an automatic trolley or a manual trolley.

[0060] Further preferably, in a preferred embodiment of the present application, the climbing member is an A-frame ladder, which includes two single-sided ladders 505 that are detachably connected. A detachable connection component is provided at the top of the two single-sided ladders 505 for realizing the detachable connection of the single-sided ladders 505. Preferably, the tops of the two single-sided ladders 505 of the A-frame ladder straddle both sides of the catenary 1. Further preferably, the A-frame ladder abuts against the catenary 1. Thus, not only can a stable support for the cable 4 be formed by the cable support member 502 provided at the top of the climbing member, but also the A-frame ladder can be supported by the catenary 1, enabling the A-frame ladder to maintain the stability of its own position during the sliding process of the free end of the cable 4.

[0061] More specifically, in a preferred embodiment of the present application, U-shaped grooves and embedding blocks corresponding to the U-shaped grooves are respectively provided at the tops of the two single-sided ladders 505. At the same time, locking holes penetrating longitudinally are provided on both the U-shaped grooves and the embedding blocks. During actual use, one single-sided ladder 505 is first erected on the catenary 1, and then the embedding block on this single-sided ladder 505 is embedded into the U-shaped groove on the other single-sided ladder 505. After the locking holes on the U-shaped groove and the embedding block are aligned, the locking pin 507 is sequentially penetrated through the locking holes, thereby realizing the detachable connection between the two single-sided ladders 505. Preferably, a positioning area for quickly clamping onto the catenary 1 is provided on the side wall surface of the single-sided ladder 505.

[0062] Furthermore, in a preferred embodiment of the present application, the climbing member is a straight ladder 506. Specifically, a catenary limiting member 508 for lapping and limiting on the catenary 1 is provided at the top of the straight ladder 506. Preferably, the catenary limiting member 508 can be a hook or a limiting groove. Specifically, a rear support platform 501 is provided at the top of the straight ladder 506, and a catenary 1 limiting groove extending longitudinally is opened at the bottom of the support platform 501. Through this catenary 1 limiting groove, the catenary 1 can be limited and fixed when the straight ladder 506 is erected at the top, so that not only can the cable support member 502 provided at the top of the climbing member form a stable support for the cable 4, but also the catenary 1 can support the folding ladder, enabling the folding ladder to always maintain the stability of its own position during the sliding process of the free end of the cable 4.

[0063] Further, in a preferred embodiment of the present application, the cutting mechanism 7 is provided on the top end surface of the support platform 501. The cutting mechanism 7 is located on the side of the cable support member 502 facing the limit support member 601, and is used to cut the cable 4 located between the cable support member 502 and the end of the sliding guide mechanism 6.

[0064] More preferably, in a preferred embodiment of the present application, the cutting mechanism 7 includes a manual hydraulic pliers or an automatic cutting assembly. Preferably, when the cutting mechanism 7 is a manual hydraulic pliers fixedly installed on the support platform 501, the cable 4 is arranged in the cutting area of the manual hydraulic pliers, so that the manual hydraulic pliers can conveniently cut the cable 4.

[0065] More specifically, in a preferred embodiment of the present application, the cutting mechanism 7 is an automatic cutting assembly, where the automatic cutting assembly includes a fixed cutter 701 and a moving cutter 702 respectively arranged on both sides of the cable 4, a cutter support 703 for supporting the moving cutter 702, and a driver 704 for driving the switching of the moving cutter 702. The cutter support 703 extends vertically, and a through hole is provided on the cutter support 703. At the same time, a driving rod arranged on the back of the moving cutter 702 passes through the through hole and is fixedly connected to the telescopic end of the driver 704, so that the driver 704 can drive the moving cutter 702 to move towards or away from the fixed cutter 701 under the transmission action of the driving rod, thereby completing the cutting of the cable 4 between the two cutters.

[0066] Preferably, at least one guide rod and a guide hole are provided between the cutter support 703 and the moving cutter 702 to ensure that the moving cutter 702 can cut the cable 4 in an accurate cutting direction.

[0067] Preferably, a cutter guide groove 705 corresponding to the moving track of the moving cutter 702 is provided on the top surface of the support platform 501, and a part of the cutter body of the moving cutter 702 is embedded in the cutter guide groove 705, which can also realize the stable guiding of the cutter movement track.

[0068] Furthermore, in a preferred embodiment of the present application, the limit support member 601 is a columnar structure extending horizontally. Correspondingly, a sliding guide groove 601 extending horizontally is provided on the columnar structure to facilitate the staff to achieve stable limiting of the cable 4 through the sliding guide groove 601. During actual use, the staff cuts the cable 4 located above the catenary 1 from the support mechanism 5 at the first side position. At this time, two free ends of the cable 4 are formed at the break point of the cable 4. Among them, the first free end of the cable 4 slides down from one side of the support mechanism 5 under the support of the cable support member 502, and the second free end of the cable 4 will gradually slide along the sliding guide groove 601 and sequentially pass through the sliding guide groove 601 and the cable support member 502 on the support mechanism 5 at the second side position, so that the cable support member 502 can prevent the second free end of the cable 4 from wearing the catenary 1 during the sliding process.

[0069] Further preferably, in a preferred embodiment of the present application, a detachable limiting component is provided between the support platform 501 and the end of the limiting support member 601, so that the limiting support member 601 can be quickly and stably limited to the support platform 501, thereby simplifying the installation process of the limiting support member 601. Preferably, the detachable limiting component is an end limiting groove 509 provided on the support platform 501, and the shape and size of the end limiting groove 509 are designed corresponding to the shape and size of the end of the limiting support member 601, so that the end of the limiting support member 601 can be embedded into the end limiting groove 509. Preferably, the end of the limiting support member 601 is a square structure, and correspondingly, the end limiting groove 509 is a square end limiting groove 509, and an interference fit is provided between the side wall surface of the limiting support member 601 and the inner wall surface of the end limiting groove 509, so that the limiting support member 601 can be clamped in the end limiting groove 509 to complete the stable fixation of the spatial position of the end limiting groove 509.

[0070] Of course, the detachable connection component is not limited to the above structural form. In another preferred embodiment of the present application, a plurality of positioning holes 606 and positioning pins 510 are arranged at intervals in the transverse direction between the bottom end surface of the end of the limiting support member 601 and the bottom surface of the end limiting groove 509. Preferably, the positioning holes 606 are opened on the bottom end surface of the end of the support member, and the positioning pins 510 are opened on the bottom surface of the limiting groove, so that the limiting support member 601 can be limited and fixed between the two by means of the position locking between the positioning holes 606 and the positioning pins 510.

[0071] Alternatively, in another preferred embodiment of the present application, at least one locking structure similar to a clamp is provided between the end of the limiting support member 601 and the support platform 501, or fixed wing plates are provided at the end of the limiting support member 601, and at the same time, the limiting support member 601 is fixed to the support platform 501 by a bolt assembly. Alternatively, a magnetic attraction assembly is further provided between the end limiting groove 509 and the limiting support member 601, and the detachable and stable limitation of the limiting support member 601 between the end limiting grooves 509 is realized through the magnetic attraction assembly.

[0072] Further, in a preferred embodiment of the present application, the sliding guide groove 601 is a semi-cylindrical structure semi-circular groove. Further preferably, the entire limiting support member 601 is a cylindrical structure with a hemispherical cross-section, so as to ensure that the sliding guide groove 601 can facilitate the stable guiding of the cable 4.

[0073] Further preferably, in a preferred embodiment of the present application, a plurality of sliding structures 603 are arranged at intervals in the transverse direction on the inner groove wall surface of the sliding guide groove 601, so that during the sliding process of the cable 4 in the sliding guide groove 601, the sliding wear between the cable 4 and the sliding guide groove 601 can be reduced. Preferably, a plurality of sliding structures 603 are arranged in an array on the inner wall surface of the sliding guide groove 601 to improve the sliding performance at various positions in the entire sliding guide groove 601.

[0074] More specifically, in a preferred embodiment of the present application, the sliding structure 603 includes a ball, a roller, a roller or a wear-resistant plate.

[0075] Further, in a preferred embodiment of the present application, a weight-reducing hole penetrating the side wall surface is formed in the limiting support member 601 to reduce the weight of the entire limiting support member 601.

[0076] Further, in a preferred embodiment of the present application, a plurality of guiding and limiting fasteners 604 are arranged at intervals in the transverse direction on the limiting support member 601. Each guiding and limiting fastener 604 is detachably straddled on both sides of the top surface of the sliding guide groove 601 to limit the partially grooved top of the sliding guide groove 601 and prevent the end of the cable 4 from jumping out of the top groove of the sliding guide groove 601.

[0077] Further preferably, in a preferred embodiment of the present application, the guiding and limiting fastener 604 extends longitudinally. One end thereof is hinged on the outer wall surface or the top surface of the limiting support member 601, and the other end is detachably fixed on the other side of the limiting support member 601. Preferably, the end of the guiding and limiting fastener 604 is detachably connected to the other end by means of pin fixing or bolt fixing.

[0078] More specifically, in a preferred embodiment of the present application, a fixed base 605 is provided on the outer wall surface of the limiting support member 601 at a position corresponding to the guiding and limiting fastener 604. The fixed base 605 is used to provide a stable installation foundation for the guiding and limiting fastener 604.

[0079] Further, in another preferred embodiment of the present application, a detachable auxiliary support is provided at the bottom of the limiting support member 601. The top of the auxiliary support is detachably fixed on the bottom end surface of the limiting support member 601. Correspondingly, the bottom of the auxiliary support is fixed on the top surface of the railway line to form an auxiliary support for the limiting support member 601.

[0080] Further, in another preferred embodiment of the present application, a cable truncation method applicable to the relocation of the three power systems in the railway area is also disclosed, which specifically includes the following steps:

[0081] S1. Loosen the cable 4 between the two high-voltage towers until the cable 4 drops above the catenary 1.

[0082] S2. Arrange support mechanisms 5 on both sides of the two load-bearing cables 1, and support the cables 4 through the position-limiting support members 601 on the tops of the support mechanisms 5.

[0083] S3. Arrange a sliding guide mechanism 6 between two adjacent support mechanisms 5, and put the cable 4 between the two support mechanisms 5 into the sliding guide groove 602 of the sliding guide mechanism 6; set a clamping fastener 504 on the limiting support member 601, and clamp the cable 4 in the sliding guide groove 602.

[0084] S4, cutting the cable 4 at one side of the supporting mechanism 5, and the two free ends of the cable 4 slide freely from the two sides of the load-bearing cable 1 at the breaking point or slide along the sliding guide mechanism 6.

[0085] S5. Remove the supporting mechanism 5 to complete the relocation of the cables 4 in the railway area.

[0086] The cable cutting device and method for the three-electric relocation in the railway area of ​​the present invention has a simple structure, is easy to use, and has stable support. It adopts a retractable climbing member and a support platform 501 with a cable support member 502 arranged on the top of the climbing member, so that the top of the cable support member 502 can support the cable 4 to a position higher than the load-bearing cable 1, thereby avoiding sliding friction between the free end of the cable 4 and the load-bearing cable 1 below the cable support member 502 during the sliding process, and avoiding friction damage to the load-bearing cable 1, the suspension string 3 and the contact network. At the same time, by setting a limiting support member 601 with a sliding guide groove 601 between two adjacent support mechanisms 5, the free end of the cable 4 can be guided and limited by the sliding guide groove 601, so that the free end of the cable 4 can avoid a large swing in the sliding process, thereby ensuring the safety of personnel and equipment around the support mechanism 5. At the same time, by detachably setting the clamping fastener 504 at the end of the cable support component 502, the cable support component 502 can achieve stable limited clamping of the cable 4, thereby avoiding irregular shaking of the cable 4 during free movement, further ensuring the safety of surrounding equipment and personnel, and having good promotion prospects and application value.

[0087] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable cutting device suitable for the relocation of three-electric power in railway areas, used for supporting and cutting cables crossing railway lines to prevent the free ends of the cut cables from sliding and rubbing against the catenary cables of the contact network; characterized in that: include: A support mechanism, which can be arranged in the railway line, and comprises a retractable climbing member and a cable supporting member arranged on the top of the climbing member, one end of the climbing member can be fixed in the railway line, and the other end of the climbing member extends vertically for workers to climb; and the vertical height of the cable supporting member is higher than the vertical height of the load-bearing cable, and is used to support the cable; A sliding guide mechanism, the sliding guide mechanism comprising a limiting support member, the limiting support member is provided with a sliding guide groove extending in a transverse direction, for supporting and limiting the movement of the free end of the cable; the cable support member is provided with a cable limiting groove in a transverse direction, and the cable limiting groove is provided with a clamping fastener for detachably limiting the cable; A cutting mechanism, the cutting mechanism is used for cutting the cable; The two support mechanisms can be arranged on the two sides of the contact network respectively, the limiting support component is arranged in the transverse direction, and the two transverse sides of the limiting support component can be detachably installed on the top end surface of the climbing component.

2. The cable cutting device suitable for three-electric migration in railway area according to claim 1, wherein: A supporting platform parallel to the horizontal plane is arranged on the top of the climbing member, and the cable supporting member is fixedly mounted on the top end surface of the supporting platform.

3. The cable cutting device suitable for three-electric migration in railway area according to claim 2, wherein: A plurality of sliding structures arranged at intervals in the transverse direction are arranged on the inner wall surface of the sliding guide groove, so as to reduce the sliding wear between the cable and the inner wall surface of the sliding guide groove.

4. The cable cutting device suitable for three-electric migration in railway area according to claim 3, wherein: The sliding structures are evenly arranged in an array on the inner wall surface of the sliding guide groove.

5. The cable cutting device suitable for three-electricity relocation in railway area according to any one of claims 2 to 4, wherein: The climbing component is a herringbone ladder or a straight ladder.

6. The cable cutting device suitable for three-electric migration in railway area according to claim 5, wherein: The climbing member is the herringbone ladder, which includes two single-sided ladders that are detachably connected. A detachable connecting assembly is provided on the top of the two single-sided ladders for detachably connecting the two single-sided ladders; and the two single-sided ladders are straddled on both sides of the load-bearing cable.

7. The cable cutting device suitable for three-electric migration in railway area according to claim 5, wherein: The climbing member is a straight ladder, the top of which is provided with the supporting platform, and the bottom end surface of the supporting platform is provided with a load-bearing cable limiting groove extending in the longitudinal direction.

8. A cable cutting device suitable for three-electricity relocation in railway area according to any one of claims 2 to 4, 6 and 7, wherein: The cutting mechanism is arranged on the top end surface of the supporting platform, and the cutting mechanism is located on a side of the cable supporting member facing the position-limiting supporting member.

9. The cable cutting device suitable for three-electricity relocation in railway area according to claim 8, wherein: The cutting mechanism comprises a manual hydraulic clamp or an automatic cutting assembly for cutting the cable.

10. A cable cutting method suitable for three-electric migration in railway areas, characterized in that: The following steps are involved: Loosening the cables between the two high-voltage towers until the cables are lowered above the catenary cables; Arrange support mechanisms on both sides of the two load-bearing cables, and support the cables through position-limiting support members on top of the support mechanisms; Arranging a sliding guide mechanism between two adjacent support mechanisms, and placing the cable between the two support mechanisms into the sliding guide groove of the sliding guide mechanism; arranging a clamping fastener on the position-limiting support member, and clamping the cable in the sliding guide groove; The cable is cut off at one side of the support mechanism, and the two free ends of the cable slide freely from the two sides of the load-bearing cable at the breakpoint or slide along the sliding guide mechanism; The support mechanism is removed to complete the relocation of the cables in the railway area.

Images