Fault first-aid repair dispatching equipment for communication cable

Abstract

The invention discloses fault first-aid repair dispatching equipment for communication cables, which comprises a dispatching vehicle, a hydraulic lifting frame, a guardrail, a control system and a distance adjusting mechanism, a cutting length adjusting mechanism is arranged on the distance adjusting mechanism, a reciprocating mechanism and a pair of tension maintaining mechanisms are arranged on the cutting length adjusting mechanism, and each tension maintaining mechanism comprises a movable seat. A tensioning mechanism is arranged on the movable seat, the side wall and a bottom plate of the movable seat are hollow cavities filled with magnetorheological fluid, an electromagnet is arranged on the lower surface of the bottom plate of the movable seat, and a cutting mechanism is fixedly connected to one end of the movable seat. According to the equipment, the distance does not need to be manually adjusted, the cable cutting quality is improved, external complex electromagnetic interference is resisted, it is ensured that signal data is accurate in the detection process, fault misjudgment or missed judgment is avoided, the secondary fault risk is reduced, and the first-aid repair reliability is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable fault repair equipment, in particular to a fault repair scheduling device for communication cable. BACKGROUND

[0002] As the core infrastructure supporting power transmission and information interaction, communication cable is widely used in urban power grids, rail transit, industrial control and people's livelihood communication fields, and its operation stability is directly related to the social production and life order and emergency support capability. However, communication cable often breaks, shorts or has signal attenuation failure due to factors such as geological subsidence, external damage and aging loss. If the fault is not repaired in time, it may cause local communication interruption, power supply anomaly, industrial production stagnation, emergency command obstruction and other major losses. When repairing the communication cable fault, manual inspection combined with single detection instrument is used to locate the fault, and the resource scheduling link relies on manual communication and coordination of the repair team, spare parts and equipment. The on-site repair progress and information are transmitted to the command center through traditional means to realize information interaction with the command end, and separate detection tools or scheduling tools are used in the corresponding link.

[0003] In the prior art, when cutting is needed in the repair of the communication cable fault of overhead cable, only manual stabilization of both ends of the cable is used, which not only increases the labor burden, but also easily causes irregular sagging or deviation of the cable due to uneven manual control, thereby causing uneven cutting surface, affecting the quality of subsequent joint connection, and even causing safety hazards due to cable shaking. During maintenance and re-inspection, the detection instrument is directly exposed to the external electromagnetic environment, and only relies on its basic anti-interference function, which is difficult to resist complex electromagnetic interference, which may cause deviation of the obtained signal data, and cannot accurately determine the fault position and degree, which may cause fault misjudgment or omission, prolong the repair time, affect the subsequent operation stability of the communication cable, and increase the risk of secondary faults. SUMMARY

[0004] The technical problem to be solved by the present application is to resist the influence of complex electromagnetic interference on the measurement signal during cable repair, and the purpose is to provide a fault repair scheduling device for communication cable to solve the problem that when cutting the insulating layer of the cable, only manual stabilization of both ends of the cable is used, which not only increases the labor burden, but also easily causes irregular sagging or deviation of the cable due to uneven manual control, and the detection instrument is directly exposed to the external electromagnetic environment, and only relies on its basic anti-interference function, which is difficult to resist complex electromagnetic interference.

[0005] The present application is realized by the following technical scheme: The utility model provides a kind of distance adjusting mechanism for the dispatch of communication cable fault repair, the equipment base of the utility model is fixed on the electric cabinet, one side of the equipment base is fixedly connected with motor one, and the output shaft of motor one is fixedly connected with reciprocating screw one, reciprocating screw one is connected with moving seat by ball nut pair, and the guide rail for the sliding of moving seat is fixedly connected on the equipment base, moving seat is fixedly connected with fixed table for moving cutting length adjusting mechanism, so that when staff detects fault point on ground, staff is lifted to fixed point by dispatching vehicle, hydraulic lifting frame, guardrail and controller, since there is error in detecting fault point on ground, the rotation of cutting length adjusting mechanism is driven by motor one through fixed table, and then cutting length adjusting mechanism can be moved to specific fault point.

[0006] As a preferred technical solution of the utility model, the cutting length adjusting mechanism includes an adjusting base fixedly connected to the fixed table, an electric motor two is fixedly connected to the side surface of the adjusting base, two reciprocating screws two are fixedly connected to the output shaft of the electric motor two, the two reciprocating screws two are movably connected through a reverse shaft coupling, and two sliding seats are connected to the two reciprocating screws two through ball nut pairs, respectively. The two sliding seats are fixedly connected to the bottom of the movable seat through two fixed plates, respectively. Then, the rotation of the two reciprocating screws two is driven by the electric motor two, the two reciprocating screws two are oppositely rotated through the reverse shaft coupling, so that the two sliding seats can move relative to each other on the adjusting base, thereby adjusting the distance between the two tension maintaining mechanisms.

[0007] As a preferred technical solution of the utility model, the reciprocating mechanism includes a support seat fixedly connected to the adjusting base, and an electric motor three is fixedly connected to the side surface of the support seat. A double-threaded screw is fixedly connected to the output shaft of the electric motor three, and a cutting mechanism is movably connected to the double-threaded screw. Thus, when the electric motor three rotates, the double-threaded screw rotates, and the cutting mechanism reciprocates on the support seat to cut the cable.

[0008] As a preferred technical solution of the utility model, the cutting mechanism includes a reciprocating moving seat, a reciprocating push piece is movably connected to the bottom of the reciprocating moving seat, the reciprocating push piece is matched with the thread groove of the double-threaded screw, a cutter seat is fixedly connected to the reciprocating moving seat, a groove matched with the cutter seat is formed in the support seat, and a cutting knife for cutting the insulation layer of the cable is rotatably connected to the cutter seat. Thus, when the double-threaded screw rotates driven by the electric motor three, the reciprocating moving seat reciprocates on the support seat to drive the cutting knife, thereby cutting the insulation layer of the cable.

[0009] As a preferred technical scheme of the present application, the side of the movable seat is fixedly connected with a cutting mechanism for cutting the insulation layer of the cable, the cutting mechanism comprises a connecting plate fixed on one side of the movable seat, a limiting ring track is fixedly connected on the connecting plate, a rotating tooth ring is slidingly connected with the limiting ring track, a pressure assembly for pressing the cable is fixedly connected on one side of the rotating tooth ring, and a cutting knife for cutting the insulation layer of the cable is movably connected on the pressure assembly.

[0010] As a preferred technical scheme of the present application, the inside of the limiting ring track is provided with a circular ring groove, a limiting ring matched with the circular ring groove is fixedly connected on the inner wall of the rotating tooth ring, and a plurality of balls for facilitating movement are movably connected between the circular ring groove and the inner wall of the limiting ring.

[0011] As a preferred technical scheme of the present application, the double-threaded screw rod is fixedly connected with a large gear at one end close to the motor three, the large gear is meshingly connected with a small gear, the small gear is fixedly connected with a rotating rod, the rotating rod is movably connected on the supporting seat, two slide rails are also fixedly connected on the supporting seat, and a circular hole matched with the slide rails is formed on the connecting plate, so that the connecting plate can slide on the slide rails, a spline gear is movably connected on the rotating rod through a spline movable ring, and the spline gear is meshingly connected with the rotating tooth ring, so that when the double-threaded screw rod drives the large gear to rotate, the small gear is driven to rotate, and then the rotating rod is driven by the small gear to make the spline gear rotate, so that the rotating tooth ring performs circular motion around the limiting ring track, and then the pressure assembly presses the cutting knife to cut the insulation layer of the cable, and since the spline gear and the rotating rod are spline-connected, the connecting plate can be moved on the supporting seat when the movable seat moves.

[0012] A fault repair scheduling device for communication cable, comprising a scheduling vehicle, a hydraulic lifting frame, a guardrail, a control system, a distance adjusting mechanism for fault repair scheduling of the communication cable, a cutting length adjusting mechanism for adjusting the cutting length is arranged on the distance adjusting mechanism, a reciprocating mechanism and a pair of tension maintaining mechanisms for cutting the insulation layer of the cable are fixedly connected on the cutting length adjusting mechanism, the tension maintaining mechanism comprises a movable seat, a tensioning mechanism is arranged on the movable seat, the control system is electrically connected with the distance adjusting mechanism, the cutting length adjusting mechanism, the reciprocating mechanism and the tension maintaining mechanism respectively for controlling the actions, and a cutting mechanism is fixedly connected on one end of the movable seat.

[0013] As a preferred technical scheme of the present application, the side wall and the bottom plate of the movable seat are hollow cavities filled with magneto-rheological fluid, and the bottom plate of the movable seat is provided with an electromagnet; the movable seat and the tensioning mechanism are respectively provided with matching electrical contacts, and the electromagnet is electrically connected with the electrical contacts; after the electromagnet is powered through the electrical contacts, the magneto-rheological fluid filled in the side wall and the bottom plate of the movable seat is converted into a solid-like state with certain rigidity, and a magnetic shielding layer with uniform magnetic field distribution is formed on the outside of the cable to shield external electromagnetic interference.

[0014] As a preferred technical scheme of the present application, the controller is provided with a data input interface for external detection equipment, and is electrically connected with the electric cabinet. The controller is electrically connected with the electric cabinet, the distance adjusting mechanism, the cutting length adjusting mechanism, the reciprocating mechanism and the tension maintaining mechanism respectively.

[0015] As a preferred technical scheme of the present application, the tensioning mechanism comprises a fixed wheel, a transmission shaft one and a tensioning wheel; the fixed wheel is fixedly connected with the movable seat, and the side wall of the movable seat is movably connected with the transmission shaft one to drive the other fixed wheel to rotate when one of the fixed wheels rotates; the tensioning wheel is movably connected with the movable seat, and one side of the tensioning wheel is rotatably connected with a rotating shaft two; a sliding groove matched with the rotating shaft two is formed in the side wall of the movable seat opposite to the rotating shaft two, and the other side of the rotating shaft two is rotatably connected with a sliding plate; a limiting groove matched with the sliding plate is arranged on the side wall of the movable seat opposite to the sliding plate; the tensioning wheel is fixedly connected with a tension pressing assembly through an elastic spring at both ends, and the tension pressing assembly is connected with the top of the side wall of the movable seat through a limiting assembly to clamp the cable between the fixed wheel and the tensioning wheel by rotating the rotating shaft on the movable seat through the sliding groove when the cable is placed between the two fixed wheels and the tensioning wheel, and the tension of the cable is adjusted through the tension pressing assembly, so that the cable is preliminarily fixed when the ground is detected, and when further detection is performed, the two tension maintaining mechanisms are moved through the distance adjusting mechanism and the cutting length adjusting mechanism, so that the precise positioning of the fault point is realized, and when the fault point is found, the distance between the two tension maintaining mechanisms is adjusted through the cutting length adjusting mechanism, and then the cable insulation layer of the faulty cable is cut; one end of the movable seat is fixedly connected with a connecting plate for fixedly connecting the cutting mechanism.

[0016] As a preferred technical scheme of the present application, the cutting mechanism comprises a limiting ring track, a rotating tooth ring, a pressure assembly and a cutter; the limiting ring track is fixedly connected with the connecting plate, and the limiting ring track is slidingly connected with the rotating tooth ring; one side of the rotating tooth ring is fixedly connected with the pressure assembly for pressing the cable, and the pressure assembly is movably connected with the cutter for cutting the cable insulation layer; a circular ring groove is arranged in the limiting ring track, and a limiting ring matched with the circular ring groove is fixedly connected to the inner wall of the rotating tooth ring; a plurality of movable balls are movably connected between the circular ring groove and the inner wall of the limiting ring.

[0017] As a preferred technical scheme of the present application, the electric contacts of the tensioning mechanism and the movable seat are arranged on the opposite inner walls of the sliding plate and the limiting groove, respectively.

[0018] Compared with the prior art, the present application has the following advantages and beneficial effects: 1. The fixed wheel and the tensioning wheel on the movable seat cooperate with the elastic spring and the tension pressing assembly to stably clamp the cable between the fixed wheel and the tensioning wheel, without the need for manual holding of the two ends of the cable, effectively reducing the labor burden, avoiding irregular sagging or deviation of the cable caused by uneven manual control, and ensuring the flatness of the subsequent cutting surface. In addition, when the electric contacts are connected by the contact of the sliding plate and the limiting groove, the electromagnet at the bottom of the movable seat is energized, and the magneto-rheological fluid in the movable seat forms an electromagnetic field similar to a Faraday cage, which can resist external complex electromagnetic interference, ensure the accuracy of signal data during detection, avoid fault misjudgment or omission, reduce the risk of secondary failure, and improve the reliability of repair.

[0019] 2. The motor drives the reciprocating lead screw to rotate, drives the moving seat to slide along the guide rail, and then moves the cutting length adjusting mechanism to the specific fault point through the fixed table, effectively correcting the errors existing in the preliminary detection of the ground, solving the problem of insufficient positioning accuracy of traditional manual positioning, ensuring accurate alignment of the fault position of the operation assembly, and the cutting length adjusting mechanism uses the motor two, the reverse shaft coupling and the two reciprocating lead screws two to drive the sliding seat to move relatively, synchronously adjusts the distance between the two tension maintaining mechanisms, can flexibly adapt to the required cutting length according to the actual situation of the fault cable, without manual adjustment of the distance, which improves the accuracy of cutting length control, speeds up the repair operation rhythm, and improves the overall repair efficiency.

[0020] 3. The application drives the double thread screw rod of the motor to rotate, drives the reciprocating movement of the cutting mechanism along the support seat, and makes the cutting knife on the cutting knife seat cut the cable insulation layer in the axial direction, avoids the problems of uneven depth and uneven cutting surface that may occur in manual axial cutting, and cuts off the mechanism relying on the limiting ring track on the connecting plate, the rotating gear ring, the pressure assembly and the cutting knife, under the transmission of the spline gear, the rotating gear ring makes circular motion around the limiting ring track, the cutting knife can complete the annular cutting of the insulation layer after the pressure assembly compresses the cable, the ball in the limiting ring track reduces the rotating friction, ensures the stability of the cutting process, reduces the labor intensity, ensures the smoothness of the insulation layer cutting surface, avoids the influence of cutting quality on the operation stability of the subsequent communication cable, and speeds up the communication recovery speed after fault repair. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings described herein are used to provide further understanding of the embodiments of the application, constitute a part of the application, and do not constitute a limitation on the embodiments of the application. In the drawings: Figure 1 A schematic diagram of a communication cable fault repair scheduling device is provided for the embodiments of the application; Figure 2 A structure schematic diagram of the tension maintaining mechanism is provided for the embodiments of the application; Figure 3 A structure schematic diagram of the distance adjusting mechanism is provided for the embodiments of the application; Figure 4 A structure schematic diagram of the cutting length adjusting mechanism is provided for the embodiments of the application; Figure 5 A structure schematic diagram of the reciprocating mechanism is provided for the embodiments of the application; Figure 6 A structure schematic diagram of the movable seat cooperating with the reciprocating mechanism is provided for the embodiments of the application; Figure 7 A structure schematic diagram of the cutting mechanism cooperating with the reciprocating mechanism is provided for the embodiments of the application; Figure 8 A structure schematic diagram of the cutting mechanism cooperating with the reciprocating mechanism is provided for the embodiments of the application; Markings in the drawings and corresponding part names: 1 - dispatch car, 2 - hydraulic lifting frame, 3 - guardrail, 4 - controller, 5 - electric cabinet, 6 - distance adjusting mechanism, 61 - equipment base, 62 - reciprocating screw No. 1, 63 - guide rail, 64 - moving seat, 65 - motor No. 1, 66 - fixed table, 7 - cutting length adjusting mechanism, 71 - adjusting base, 72 - motor No. 2, 73 - reciprocating screw No. 2, 74 - reverse coupling, 75 - sliding seat, 8 - reciprocating mechanism, 81 - supporting seat, 82 - double-threaded screw, 83 - large gear, 84 - motor No. 3, 85 - small gear, 86 - sliding rail, 87 - rotating rod, 88 - spline gear, 9 - tension maintaining mechanism, 91 - movable seat, 92 - fixed wheel, 93 - transmission shaft No. 1, 94 - tension wheel, 95 - transmission shaft No. 2, 96 - sliding groove, 97 - sliding plate, 98 - limiting groove, 99 - elastic spring, 10 - cutting mechanism, 101 - connecting plate, 102 - limiting ring rail, 103 - rotating tooth ring, 104 - pressure assembly, 105 - cutting knife, 11 - cutting mechanism, 111 - reciprocating moving seat, 112 - reciprocating push piece, 113 - cutting knife seat, 114 - cutting knife. DETAILED DESCRIPTION

[0022] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the embodiments and drawings, and the illustrative embodiments of the present application and the description thereof are only used to explain the present application, and do not limit the present application.

[0023] In the following description, a large number of specific details are set forth to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without these specific details. In other instances, well-known structures, materials or actions have not been described in detail in order to avoid obscuring the present application.

[0024] Throughout this specification, the recitation "one embodiment," "an embodiment," "one example," or "an example" means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. Thus, the appearances of the phrase "one embodiment," "an embodiment," "one example," or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics can be combined in any suitable

[0025] In the description of the present application, the terms "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application. Embodiment 1

[0026] The embodiment of the present application provides a distance adjusting mechanism for fault repair scheduling of a communication cable, the distance adjusting mechanism 6 comprises a device base 61 fixed on an electric cabinet 5; one side of the device base 61 is fixedly connected with a motor one 65, and a reciprocating lead screw one 62 is fixedly connected on an output shaft of the motor one 65; the reciprocating lead screw one 62 is connected with a moving seat 64 through a ball nut pair, and the device base 61 is fixedly connected with guide rails 63 facilitating sliding of the moving seat 64; and the moving seat 64 is fixedly connected with a fixed table 66 facilitating movement of a cutting length adjusting mechanism 7.

[0027] In work, the staff first starts the motor one 65 of the distance adjusting mechanism 6, the output shaft of the motor one 65 drives the reciprocating lead screw one 62 to rotate, the moving seat 64 connected with the reciprocating lead screw one 62 through the ball nut pair will stably slide along the guide rails 63 on the device base 61 under the guidance of the guide rails 63, the fixed table 66 at the top of the moving seat 64 moves synchronously with the moving seat 64, finally accurately aligns with the actual fault point, corrects the error of ground detection, and ensures the pertinence of subsequent operation. Embodiment 2

[0028] The embodiment of the present application provides a fault repair scheduling device for a communication cable, as shown in Figure 1 and Figure 2 , comprising: The dispatching vehicle 1, the hydraulic lifting frame 2, the guardrail 3, the control system are characterized by further comprising: a distance adjusting mechanism 6, a cutting length adjusting mechanism 7 for adjusting the cutting length is arranged on the distance adjusting mechanism 6; a reciprocating mechanism 8 for cutting the cable insulation layer and a pair of tension maintaining mechanisms 9 are arranged on the cutting length adjusting mechanism 7; the tension maintaining mechanism 9 comprises a movable seat 91, a tensioning mechanism is arranged on the movable seat 91, the side wall and the bottom plate of the movable seat 91 are hollow cavities filled with magnetorheological fluid, and the bottom plate lower surface of the movable seat 91 is provided with an electromagnet; the movable seat 91 and the tensioning mechanism are respectively provided with matched electric contacts, the electric contacts of the tensioning mechanism and the movable seat 91 are arranged on the opposite inner walls of the sliding plate 97 and the limiting plate slot 98 respectively, and the electromagnet and the electric contact are electrically connected; the control system is electrically connected with the distance adjusting mechanism 6, the cutting length adjusting mechanism 7, the reciprocating mechanism 8 and the tension maintaining mechanism 9 respectively for controlling the action; the cutting length adjusting mechanism 7 is further fixedly connected with the reciprocating mechanism 8; one end of the movable seat 91 is fixedly connected with a cutting mechanism 10.

[0029] The control system comprises: a controller 4 and an electric cabinet 5; the controller 4 is provided with a data input interface for external detection equipment, and is electrically connected with the electric cabinet 5.

[0030] The tensioning mechanism comprises: a fixed wheel 92, a transmission shaft 93 and a tensioning wheel 94; the fixed wheel 92 is fixedly connected with the movable seat 91, and the side wall of the movable seat 91 is movably connected with the transmission shaft 93, so that the rotation of one of the fixed wheels 92 drives the rotation of the other fixed wheel 92; the tensioning wheel 94 is movably connected with the movable seat 91, and one side of the tensioning wheel 94 is rotatably connected with a rotating shaft 95; the side wall opposite to the rotating shaft 95 of the movable seat 91 is provided with a sliding groove 96 matched with the rotating shaft 95, and the other side of the rotating shaft 95 is rotatably connected with a sliding plate 97; the side wall opposite to the sliding plate 97 of the movable seat 91 is provided with a limiting slot 98 matched with the sliding plate 97; the two ends of the tensioning wheel 94 are fixedly connected with a tension pressing assembly 910 through elastic springs 99 respectively, the tension pressing assembly 910 and the top of the side wall of the movable seat 91 are connected through a limiting assembly; one end of the movable seat 91 is fixedly connected with a connecting plate 101 for fixedly connecting the cutting mechanism 10.

[0031] In operation, first, the communication cable to be repaired is placed between the two fixed wheels 92 and the tensioning wheel 94 of the tension maintaining mechanism 9, and the cable is stably clamped between the fixed wheels 92 and the tensioning wheel 94 by rotating the rotating shaft 95 of the tensioning wheel 94 along the sliding groove 96 of the side wall of the movable seat 91; at this time, the elastic springs 99 at both ends of the tensioning wheel 94 will cooperate with the tension pressing assembly 910 to adaptively adjust the pressure according to the diameter of the cable and the tension requirement, realize the pre-fixing of the cable in the ground preliminary detection stage, and avoid the cable sagging or deviation caused by manual holding. When further accurate detection of the fault point is needed, the distance adjusting mechanism 6 and the cutting length adjusting mechanism 7 act cooperatively to drive the two tension maintaining mechanisms 9 to move as a whole, and the fault position is located through the real-time feedback detection data of the controller 4, if the fault point needs to be cut, the cutting length adjusting mechanism 7 can adjust the distance between the two tension maintaining mechanisms 9 to reserve a suitable length for subsequent insulation layer cutting, and when the sliding plate 97 of the tensioning wheel 94 contacts the limiting groove 98 of the movable seat 91, the electrical contacts of the relative inner walls of the two will be connected, the electromagnet at the bottom of the movable seat 91 is electrified, the magnetic field generated by the electromagnet changes the state of the magneto-rheological fluid in the movable seat 91, and a shielding electromagnetic field similar to a Faraday cage is formed on the outside of the cable, which effectively resists external complex electromagnetic interference, ensures the accuracy of the detection signal data, and avoids false or missed judgment of the fault. Example 3

[0032] The embodiment of the present application provides a fault repair scheduling device for communication cable, as shown in Figure 1 、 Figure 2 and Figure 3 , comprising: a scheduling vehicle 1, a hydraulic lifting frame 2, a guardrail 3, a control system, characterized in that further comprising: a distance adjusting mechanism 6, the distance adjusting mechanism 6 is provided with a cutting length adjusting mechanism 7 for adjusting the cutting length; the cutting length adjusting mechanism 7 is provided with a reciprocating mechanism 8 for cutting the insulation layer of the cable and a pair of tension maintaining mechanisms 9; the tension maintaining mechanism 9 comprises a movable seat 91, the movable seat 91 is provided with a tensioning mechanism, the side wall and the bottom plate of the movable seat 91 are hollow cavities filled with magneto-rheological fluid, and the bottom plate of the movable seat 91 is provided with an electromagnet; the movable seat 91 and the tensioning mechanism are respectively provided with matched electrical contacts, the electrical contacts of the tensioning mechanism and the movable seat 91 are respectively arranged on the opposite inner walls of the sliding plate 97 and the limiting plate groove 98, and the electromagnet and the electrical contact are electrically connected; the control system is electrically connected with the distance adjusting mechanism 6, the cutting length adjusting mechanism 7, the reciprocating mechanism 8 and the tension maintaining mechanism 9 respectively for controlling the action; the cutting length adjusting mechanism 7 is further fixedly connected with the reciprocating mechanism 8; one end of the movable seat 91 is fixedly connected with a cutting mechanism 10.

[0033] The control system comprises a controller 4 and an electric cabinet 5; the controller 4 is provided with a data input interface for externally connecting a detection device and is electrically connected with the electric cabinet 5.

[0034] The tensioning mechanism comprises fixed wheels 92, a transmission shaft 93 and a tensioning wheel 94; the fixed wheels 92 are fixedly connected with the movable seat 91, and the side wall of the movable seat 91 is movably connected with the transmission shaft 93, so that the rotation of one fixed wheel 92 drives the rotation of the other fixed wheel 92; the tensioning wheel 94 is movably connected with the movable seat 91, and one side of the tensioning wheel 94 is rotatably connected with a second rotating shaft 95; a sliding groove 96 matched with the second rotating shaft 95 is formed in the side wall opposite to the second rotating shaft 95 of the movable seat 91, and a sliding plate 97 is rotatably connected to the other side of the second rotating shaft 95; a limiting groove 98 matched with the sliding plate 97 is arranged on the side wall opposite to the sliding plate 97 of the movable seat 91; tension pressing assemblies 910 are fixedly connected to both ends of the tensioning wheel 94 through elastic springs 99, and the tension pressing assemblies 910 are connected with the top of the side wall of the movable seat 91 through limiting assemblies; one end of the movable seat 91 is fixedly connected with a connecting plate 101 for fixedly connecting the cutting-off mechanism 10.

[0035] The distance adjusting mechanism 6 comprises a device base 61 fixed on the electric cabinet 5, one side of the device base 61 is fixedly connected with a motor 65, and the output shaft of the motor 65 is fixedly connected with a reciprocating lead screw 62, the reciprocating lead screw 62 is connected with a moving seat 64 through a ball nut pair, and the device base 61 is fixedly connected with guide rails 63 for sliding of the moving seat 64, and the moving seat 64 is fixedly connected with a fixed table 66 for moving the cutting length adjusting mechanism 7, so that when the staff detects the fault point on the ground, the staff is lifted to the vicinity of the fixed point through the dispatching vehicle 1, the hydraulic lifting frame 2, the guardrail 3 and the controller 4, and since there is an error in detecting the fault point on the ground, the rotation of the motor 65 drives the rotation of the cutting length adjusting mechanism 7 through the fixed table 66, and the cutting length adjusting mechanism 7 can be moved to the specific fault point.

[0036] In operation, the worker first locates the cable fault point through the ground detection equipment, then transfers the equipment to the fault site by means of the dispatching vehicle 1, and lifts the worker and the equipment main body to the height close to the fault point by the hydraulic lifting frame 2. Since the ground detection is affected by environmental shielding, instrument accuracy and other factors, there is a certain error. At this time, the motor one 65 of the distance adjusting mechanism 6 is started, the output shaft of the motor one 65 drives the reciprocating screw one 62 to rotate, the moving seat 64 connected with the reciprocating screw one 62 through the ball nut pair is guided by the guide rail 63 on the equipment base 61 and smoothly slides along the screw axial direction, the fixed table 66 at the top of the moving seat 64 moves synchronously with the moving seat 64, and then drives the cutting length adjusting mechanism 7 fixed on the fixed table 66 to move, so that the cutting and detection assembly is accurately aligned with the actual fault point, the error of the ground detection is corrected, and the pertinence of subsequent operation is ensured. Embodiment 4

[0037] The embodiment of the present application provides a fault repair dispatching equipment for communication cable, as shown in Figure 1 、 Figure 2 and Figure 4 , comprising: The dispatching vehicle 1, the hydraulic lifting frame 2, the guardrail 3 and the control system are characterized by further comprising: a distance adjusting mechanism 6, wherein the distance adjusting mechanism 6 is provided with a cutting length adjusting mechanism 7 for adjusting the cutting length; the cutting length adjusting mechanism 7 is provided with a reciprocating mechanism 8 for cutting the cable insulation layer and a pair of tension maintaining mechanisms 9; the tension maintaining mechanism 9 comprises a movable seat 91, the movable seat 91 is provided with a tensioning mechanism, the side wall and the bottom plate of the movable seat 91 are hollow cavities filled with magnetorheological fluid, and the bottom plate of the movable seat 91 is provided with an electromagnet; the movable seat 91 and the tensioning mechanism are respectively provided with matched electric contacts, the electric contacts of the tensioning mechanism and the movable seat 91 are arranged on the opposite inner walls of the sliding plate 97 and the limiting plate slot 98, and the electromagnet and the electric contacts are electrically connected; the control system is electrically connected with the distance adjusting mechanism 6, the cutting length adjusting mechanism 7, the reciprocating mechanism 8 and the tension maintaining mechanism 9 respectively for controlling the actions; the cutting length adjusting mechanism 7 is further fixedly connected with the reciprocating mechanism 8; one end of the movable seat 91 is fixedly connected with a cutting mechanism 10.

[0038] The control system comprises a controller 4 and an electric cabinet 5; the controller 4 is provided with a data input interface for external detection equipment, and is electrically connected with the electric cabinet 5.

[0039] The tensioning mechanism comprises a fixed wheel 92, a transmission shaft 93 and a tensioning wheel 94; the fixed wheel 92 is fixedly connected with the movable seat 91, and the side wall of the movable seat 91 is movably connected with the transmission shaft 93, so that the rotation of one of the fixed wheels 92 drives the rotation of the other fixed wheel 92; the tensioning wheel 94 is movably connected with the movable seat 91, and one side of the tensioning wheel 94 is rotatably connected with a rotating shaft 95; a sliding groove 96 matched with the rotating shaft 95 is formed in the side wall opposite to the rotating shaft 95 of the movable seat 91, and the other side of the rotating shaft 95 is rotatably connected with a sliding plate 97; a limiting groove 98 matched with the sliding plate 97 is arranged on the side wall opposite to the sliding plate 97 of the movable seat 91; the two ends of the tensioning wheel 94 are fixedly connected with tension pressing assemblies 910 through elastic springs 99, and the tension pressing assemblies 910 are connected with the top of the side wall of the movable seat 91 through limiting assemblies; one end of the movable seat 91 is fixedly connected with a connecting plate 101 for fixedly connecting the cutting-off mechanism 10.

[0040] The cutting length adjusting mechanism 7 comprises an adjusting base 71 fixedly connected with the fixed table 66, a motor 72 fixedly connected with the side of the adjusting base 71, two reciprocating lead screws 73 fixedly connected with the output shaft of the motor 72, and a reverse shaft coupling 74 movably connecting the two reciprocating lead screws 73, and a sliding seat 75 connected with each of the two reciprocating lead screws 73 through a ball nut pair, and the two sliding seats 75 are fixedly connected with the bottom of the movable seat 91 through two fixed plates 76, so as to realize the rotation of the motor 72 driving the rotation of the two reciprocating lead screws 73, the opposite rotation of the two reciprocating lead screws 73 through the reverse shaft coupling 74, and the relative movement of the two sliding seats 75 on the adjusting base 71, so as to adjust the distance between the two tension maintaining mechanisms 9.

[0041] In operation, according to the length requirement of the insulation layer to be cut of the fault cable, the motor 72 of the cutting length adjusting mechanism 7 is started, the output shaft of the motor 72 directly drives the rotation of the two reciprocating lead screws 73 connected through the reverse shaft coupling 74, and due to the action of the reverse shaft coupling 74, the two reciprocating lead screws 73 rotate in opposite directions (one clockwise and the other counterclockwise), each of the reciprocating lead screws 73 is connected with the sliding seat 75 through the ball nut pair, the reverse rotation of the lead screw causes the relative movement of the two sliding seats 75 along the axial direction of the adjusting base 71 (moving closer to each other when the cutting length needs to be shortened, and moving away from each other when the cutting length needs to be lengthened), and since the two sliding seats 75 are fixedly connected with the bottom of the movable seat 91 of the two tension maintaining mechanisms 9 through the fixed plates 76, the relative movement of the sliding seats 75 can synchronously drive the two tension maintaining mechanisms 9 to adjust the distance, so as to accurately control the length of the section of the fault cable to be cut and adapt to the cutting requirement in different fault scenarios. Example 5

[0042] The embodiment of the present application provides a fault repair scheduling device for communication cable, as shown in Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 , comprising: a scheduling vehicle 1, a hydraulic lifting frame 2, a guardrail 3, a control system, characterized in that further comprising: a distance adjusting mechanism 6, the distance adjusting mechanism 6 is provided with a cutting length adjusting mechanism 7 for adjusting the cutting length; the cutting length adjusting mechanism 7 is provided with a reciprocating mechanism 8 for cutting the cable insulation layer and a pair of tension maintaining mechanisms 9; the tension maintaining mechanism 9 comprises a movable seat 91, the movable seat 91 is provided with a tensioning mechanism, the side wall and the bottom plate of the movable seat 91 are hollow cavities filled with magnetorheological fluid, and the bottom surface of the bottom plate of the movable seat 91 is provided with an electromagnet; the movable seat 91 and the tensioning mechanism are respectively provided with matched electric contacts, the electric contacts of the tensioning mechanism and the movable seat 91 are respectively arranged on the opposite inner walls of the sliding plate 97 and the limiting plate slot 98, and the electromagnet is electrically connected with the electric contacts; the control system is electrically connected with the distance adjusting mechanism 6, the cutting length adjusting mechanism 7, the reciprocating mechanism 8 and the tension maintaining mechanism 9 respectively, for controlling the action; the cutting length adjusting mechanism 7 is further fixedly connected with the reciprocating mechanism 8; one end of the movable seat 91 is fixedly connected with a cutting mechanism 10.

[0043] The control system comprises: a controller 4 and an electric cabinet 5; the controller 4 is provided with a data input interface for externally connecting a detection device, and is electrically connected with the electric cabinet 5.

[0044] The tensioning mechanism comprises: a fixed wheel 92, a transmission shaft 93 and a tensioning wheel 94; the fixed wheel 92 is fixedly connected with the movable seat 91, and the side wall of the movable seat 91 is movably connected with the transmission shaft 93, so that the rotation of one of the fixed wheels 92 drives the rotation of the other fixed wheel 92; the tensioning wheel 94 is movably connected with the movable seat 91, and one side of the tensioning wheel 94 is rotatably connected with a rotating shaft 95; the side wall opposite to the rotating shaft 95 of the movable seat 91 is provided with a sliding groove 96 matched with the rotating shaft 95, and the other side of the rotating shaft 95 is rotatably connected with a sliding plate 97; the side wall opposite to the sliding plate 97 of the movable seat 91 is provided with a limiting slot 98 matched with the sliding plate 97; the two ends of the tensioning wheel 94 are fixedly connected with a tension pressing assembly 910 through elastic springs 99 respectively, the tension pressing assembly 910 is connected with the top of the side wall of the movable seat 91 through a limiting assembly; one end of the movable seat 91 is fixedly connected with a connecting plate 101 for fixedly connecting the cutting mechanism 10.

[0045] The cutting length adjusting mechanism 7 comprises an adjusting base 71 fixedly connected to the fixed table 66, a motor two 72 fixedly connected to the side of the adjusting base 71, two reciprocating lead screws two 73 fixedly connected to the output shaft of the motor two 72, and the two reciprocating lead screws two 73 are movably connected through a reverse shaft coupling 74, and the two reciprocating lead screws two 73 are movably connected with sliding seats 75 through ball nut pairs, and the two sliding seats 75 are fixedly connected with the bottom of the movable seat 91 through two fixed plates 76, so as to realize that the motor two 72 drives the two reciprocating lead screws two 73 to rotate, and the two reciprocating lead screws two 73 rotate in opposite directions through the reverse shaft coupling 74, so that the two sliding seats 75 can move relatively on the adjusting base 71, thereby adjusting the distance between the two tension maintaining mechanisms 9.

[0046] The reciprocating mechanism 8 comprises a support seat 81 fixedly connected to the adjusting base 71, and a motor three 84 fixedly connected to the side of the support seat 81, a double-thread screw 82 fixedly connected to the output shaft of the motor three 84, and a cutting mechanism 11 movably connected to the double-thread screw 82, so that the motor three 84 drives the double-thread screw 82 to rotate when rotating, and the cutting mechanism 11 can move reciprocally on the support seat 81 to cut the cable insulation, the cutting mechanism 11 comprises a reciprocating moving seat 111, a reciprocating push piece 112 movably connected to the bottom of the reciprocating moving seat 111, and the reciprocating push piece 112 is matched with the thread groove of the double-thread screw 82, and a cutter seat 113 is fixedly connected to the reciprocating moving seat 111, a groove matched with the cutter seat 113 is formed in the support seat 81, and a cutting knife 114 for cutting the cable insulation layer is rotatably connected to the cutter seat 113, so that the reciprocating moving seat 111 drives the cutting knife 114 to move reciprocally on the support seat 81 when the double-thread screw 82 is driven to rotate by the motor three 84, thereby cutting the cable insulation layer, one end of the double-thread screw 82 close to the motor three 84 is fixedly connected with a large gear 83, the large gear 83 is meshingly connected with a small gear 85, the small gear 85 is fixedly connected with a rotating rod 87, the rotating rod 87 is movably connected to the support seat 81, two slide rails 86 are also fixedly connected to the support seat 81, and a circular hole matched with the slide rails 86 is formed in the connecting plate 101, so that the connecting plate 101 can slide on the slide rails 86, a spline gear 88 is movably connected to the rotating rod 87 through a spline movable ring, and the spline gear 88 is meshingly connected with the rotating tooth ring 103, so that the double-thread screw 82 drives the large gear 83 to rotate when the large gear 83 is driven to rotate by the motor three 84, thereby driving the small gear 85 to rotate, and then driving the rotating rod 87 to drive the spline gear 88 to rotate through the small gear 85, so that the rotating tooth ring 103 moves in a circular motion around the limiting ring track 102, thereby the pressure assembly 104 compresses the cutter 105 to cut the cable insulation layer, and because the spline gear 88 is connected with the rotating rod 87 through spline, the connecting plate 101 can move on the support seat 81 when the movable seat 91 moves; When working, the motor three 84 of the reciprocating mechanism 8 is started, the output shaft of the motor three 84 drives the double-threaded screw rod 82 to rotate, on the one hand, the screw groove of the double-threaded screw rod 82 matches the reciprocating push piece 112 at the bottom of the reciprocating moving seat 111 of the cutting mechanism 11, when the screw rod rotates, the reciprocating moving seat 111 is pushed to do linear reciprocating motion along the groove on the support seat 81 through the reciprocating push piece 112, the cutter seat 113 at the top of the reciprocating moving seat 111 moves synchronously, the cutting knife 114 rotatingly connected on the cutter seat 113 will cut the cable insulation layer in the axial direction with reciprocating motion, which ensures that the cutting surface is flat and avoids irregular problems of manual cutting, at the same time, the large gear 83 close to the motor three 84 end of the double-threaded screw rod 82 will rotate synchronously, the large gear 83 and the meshing pinion 85 form a speed reduction transmission, the pinion 85 drives the rotating rod 87 fixed on the support seat 81 to rotate, the rotating rod 87 drives the spline gear 88 to rotate through spline connection, the spline gear 88 meshes with the rotating tooth ring 103 of the cutting mechanism 10, and then drives the rotating tooth ring 103 to do circular motion along the limiting ring track 102 (the ball inside the limiting ring track 102 reduces the rotating friction, and ensures that the motion is stable), and because the spline gear 88 and the rotating rod 87 are spline-connected, when the cutting length adjusting mechanism 7 drives the movable seat 91 to move, the connecting plate 101 on the side of the movable seat 91 will slide along the slide rail 86 of the support seat 81, the spline structure can adaptively compensate the moving distance of the connecting plate 101, ensures that the transmission is not interrupted, and provides stable power for the subsequent circular cutting of the cutting mechanism 10. Example 6

[0047] The embodiment of the application provides a fault repair scheduling device for communication cable, as shown in Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 8 , comprising: The dispatching vehicle 1, the hydraulic lifting frame 2, the guardrail 3, the control system are characterized by further comprising: a distance adjusting mechanism 6, a cutting length adjusting mechanism 7 for adjusting the cutting length is arranged on the distance adjusting mechanism 6; a reciprocating mechanism 8 for cutting the cable insulation layer and a pair of tension maintaining mechanisms 9 are arranged on the cutting length adjusting mechanism 7; the tension maintaining mechanism 9 comprises a movable seat 91, a tensioning mechanism is arranged on the movable seat 91, the side wall and the bottom plate of the movable seat 91 are hollow cavities filled with magnetorheological fluid, and the bottom plate lower surface of the movable seat 91 is provided with an electromagnet; the movable seat 91 and the tensioning mechanism are respectively provided with matched electric contacts, the electric contacts of the tensioning mechanism and the movable seat 91 are arranged on the opposite inner walls of the sliding plate 97 and the limiting plate slot 98 respectively, and the electromagnet and the electric contact are electrically connected; the control system is electrically connected with the distance adjusting mechanism 6, the cutting length adjusting mechanism 7, the reciprocating mechanism 8 and the tension maintaining mechanism 9 respectively for controlling the action; the cutting length adjusting mechanism 7 is further fixedly connected with the reciprocating mechanism 8; one end of the movable seat 91 is fixedly connected with a cutting mechanism 10.

[0048] The control system comprises: a controller 4 and an electric cabinet 5; the controller 4 is provided with a data input interface for external detection equipment, and is electrically connected with the electric cabinet 5.

[0049] The tensioning mechanism comprises: a fixed wheel 92, a transmission shaft 93 and a tensioning wheel 94; the fixed wheel 92 is fixedly connected with the movable seat 91, and the side wall of the movable seat 91 is movably connected with the transmission shaft 93, so that the rotation of one of the fixed wheels 92 drives the rotation of the other fixed wheel 92; the tensioning wheel 94 is movably connected with the movable seat 91, and one side of the tensioning wheel 94 is rotatably connected with a rotating shaft 95; the side wall opposite to the rotating shaft 95 of the movable seat 91 is provided with a sliding groove 96 matched with the rotating shaft 95, and the other side of the rotating shaft 95 is rotatably connected with a sliding plate 97; the side wall opposite to the sliding plate 97 of the movable seat 91 is provided with a limiting slot 98 matched with the sliding plate 97; the two ends of the tensioning wheel 94 are fixedly connected with a tension pressing assembly 910 through elastic springs 99 respectively, and the tension pressing assembly 910 is connected with the top of the side wall of the movable seat 91 through a limiting assembly; one end of the movable seat 91 is fixedly connected with a connecting plate 101 for fixedly connecting the cutting mechanism 10.

[0050] The cutting length adjusting mechanism 7 comprises an adjusting base 71 fixedly connected to the fixed table 66, a motor two 72 fixedly connected to the side of the adjusting base 71, two reciprocating lead screws two 73 fixedly connected to the output shaft of the motor two 72, and the two reciprocating lead screws two 73 are movably connected through a reverse shaft coupling 74, and the two reciprocating lead screws two 73 are movably connected with sliding seats 75 through ball nut pairs, and the two sliding seats 75 are fixedly connected with the bottom of the movable seat 91 through two fixed plates 76, so as to realize that the motor two 72 drives the two reciprocating lead screws two 73 to rotate, and the two reciprocating lead screws two 73 are reversely rotated through the reverse shaft coupling 74, so that the two sliding seats 75 can relatively move on the adjusting base 71, thereby adjusting the spacing of the two tension maintaining mechanisms 9.

[0051] The movable seat 91 is fixedly connected with a cutting mechanism 10 for cutting the cable insulation layer on the side, the cutting mechanism 10 comprises a connecting plate 101 fixed on one side of the movable seat 91, a limiting ring track 102 is fixedly connected to the connecting plate 101, a rotating tooth ring 103 is movably connected to the limiting ring track 102, a pressure assembly 104 for pressing the cable is fixedly connected to one side of the rotating tooth ring 103, a cutter 105 for cutting the cable insulation layer is movably connected to the pressure assembly 104, a circular groove is arranged in the limiting ring track 102, a limiting ring matched with the circular groove is fixedly connected to the inner wall of the rotating tooth ring 103, and a plurality of movable balls are movably connected between the inner walls of the rotating tooth ring 103 of the limiting ring track 102.

[0052] When working, the connecting plate 101 of the cutting mechanism 10 moves to the cutting position with the movable seat 91 of the tension maintaining mechanism 9, first, the cable is pressed by the pressure assembly 104 on one side of the rotating tooth ring 103 (to avoid the cable rotating or deviating during cutting), then under the transmission of the reciprocating mechanism 8, the rotating tooth ring 103 makes circular motion along the limiting ring track 102 (the circular groove in the limiting ring track 102 and the limiting ring on the inner wall of the rotating tooth ring 103 cooperate to ensure stable rotating track), the pressure assembly 104 is synchronously circularly moved by the rotating tooth ring 103, and the cutter 105 movably connected to the pressure assembly 104 is tightly attached to the cable insulation layer under the pressure, and the circular cutting of the cable insulation layer is completed by the circular motion of the rotating tooth ring 103, compared with manual cutting, the process is controlled by mechanical circular motion and pressure, which ensures that the cutting surface is uniform and regular, provides a good foundation for subsequent cable joint connection, and reduces the manual operation strength.

[0053] The working principle of the present application is as follows: When working, the dispatch vehicle 1 transports the device to the fault site, the hydraulic lifting frame 2 lifts the working assembly to the cable height, the guardrail 3 ensures the safety of operation, the operator operates through the controller 4, first puts the cable to be repaired between the fixed wheel 92 and the tensioning wheel 94 of the tension maintaining mechanism 9, rotates the rotating shaft two 95 along the sliding groove 96 to clamp the cable, the elastic spring 99 cooperates with the tension pressing assembly 910 to maintain the stable tension of the cable, when there is an error in the ground detection, the motor one 65 drives the reciprocating lead screw one 62 to rotate, the moving seat 64 slides along the guide rail 63, the fixed table 66 drives the cutting length adjusting mechanism 7 to accurately align the fault point, the motor two 72 drives the two reciprocating lead screws two 73 connected through the reverse shaft coupling 74 to rotate in opposite directions, the sliding seat 75 drives the movable seat 91 through the fixed plate 76 to adjust the distance between the two tension maintaining mechanisms 9 to adapt to the cutting demand, when detecting or rechecking, the sliding plate 97 and the limiting groove 98 are connected through the electric contact, the electromagnet at the bottom of the movable seat 91 is powered on, the internal magnetorheological fluid forms a shielding electromagnetic field (when the sliding plate 97 on one side of the tensioning wheel 94 and the limiting groove 98 on the movable seat 91 are attached, the matched electric contacts of the two relative inner walls are connected to the circuit, and then the electromagnet at the bottom of the movable seat 91 is powered on, the electromagnet generates a stable magnetic field after being powered on, the magnetic field quickly changes the physical state of the magnetorheological fluid in the movable seat 91, the magnetorheological fluid changes from a liquid state to a solid-like state with certain rigidity under the action of the magnetic field, and the magnetic field is uniformly distributed, finally forming a wrapping and magnetic field uniformly distributed "electromagnetic shielding layer" on the outside of the cable, and the effect is equivalent to a simple Faraday cage), in the cutting stage, the motor three 84 drives the double-threaded lead screw 82 to rotate, the reciprocating moving seat 111 drives the cutter seat 113 and the cutting knife 114 to reciprocate and cut the cable insulation layer through the reciprocating tab 112, and at the same time, the large gear 83 on the double-threaded lead screw 82 meshes with the small gear 85, the rotating rod 87 drives the spline gear 88 to drive the rotating tooth ring 103 to rotate along the limiting ring rail 102, and the pressure assembly 104 presses the cutter 105 to complete the annular cutting of the insulation layer, and the connecting plate 101 slides along the sliding rail 86 to adapt to the overall action.

[0054] The above specific embodiments further illustrate the purpose, technical solutions and advantages of the present application. It should be understood that the above description is only a specific embodiment of the present application and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A distance-adjusting mechanism for fault repair and dispatching of communication cables, characterized in that, The adjusting mechanism (6) includes a device base (61); a motor (65) is fixedly connected to one side of the device base (61), and a reciprocating screw (62) is fixedly connected to the output shaft of the motor (65); a movable seat (64) is connected to the reciprocating screw (62) through a ball nut pair, and a guide rail (63) is fixedly connected to the device base (61) to facilitate the sliding of the movable seat (64); a fixed platform (66) is fixedly connected to the movable seat (64) to facilitate the movement of the cutting length adjusting mechanism (7).

2. The distance adjustment mechanism for fault repair and dispatching of communication cables according to claim 1, characterized in that, The cutting length adjustment mechanism (7) includes an adjustment base (71) fixedly connected to the adjustment mechanism (6), and a motor (72) is fixedly connected to one end of the adjustment base (71); two reciprocating screws (73) are fixedly connected to the output shaft of the motor (72), and the two reciprocating screws (73) are movably connected through a reverse coupling (74), and both reciprocating screws (73) are connected to sliding seats (75) through ball nut pairs; both sliding seats (75) are fixedly connected to the base plate of the movable seat (91) through two fixed plates (76).

3. The distance adjustment mechanism for fault repair and dispatching of communication cables according to claim 2, characterized in that, It also includes a reciprocating mechanism (8) and a connecting plate (101). The reciprocating mechanism (8) includes a support base (81) fixedly connected to an adjusting base (71). A motor (84) is fixedly connected to the side of the support base (81). A double-threaded screw (82) is fixedly connected to the output shaft of the motor (84), and a cutting mechanism (11) is movably connected to the double-threaded screw (82). A large gear (83) is fixedly connected to one end of the double-threaded screw (82) near the motor (84). The wheel (83) is meshed with a small gear (85), and the small gear (85) is fixedly connected to a rotating rod (87); the rotating rod (87) is movably connected to the support base (81), and two slide rails (86) are also fixedly connected to the support base (81); the rotating rod (87) is connected to a spline gear (88) through a spline movable ring, and the spline gear (88) is meshed with a rotating gear ring (103); the connecting plate (101) has a round hole that matches the slide rail (86).

4. A distance adjustment mechanism for fault repair and dispatching of communication cables according to claim 3, characterized in that, The cutting mechanism (11) includes a reciprocating moving seat (111), a reciprocating paddle (112) is movably connected to the bottom of the reciprocating moving seat (111), and the reciprocating paddle (112) matches the thread groove of the double threaded screw (82). A cutter seat (113) is fixedly connected to the reciprocating moving seat (111), and a groove matching the cutter seat (113) is provided on the support seat (81). A cutter (114) for cutting cable insulation is rotatably connected to the cutter seat (113).

5. A fault repair and dispatching device for communication cables, comprising a dispatching vehicle (1), a hydraulic lifting frame (2), a guardrail (3), and a control system, characterized in that, It also includes a distance adjustment mechanism for fault repair scheduling of communication cables as described in any one of claims 1-4, wherein the distance adjustment mechanism (6) is provided with a cutting length adjustment mechanism (7) for adjusting the cutting length; the cutting length adjustment mechanism (7) is fixedly connected with a reciprocating mechanism (8) for cutting the cable insulation layer and a pair of tension maintaining mechanisms (9); the tension maintaining mechanism (9) includes a movable seat (91), and a tensioning mechanism is provided on the movable seat (91); the control system is electrically connected to the distance adjustment mechanism (6), the cutting length adjustment mechanism (7), the reciprocating mechanism (8) and the tension maintaining mechanism (9) respectively, for controlling the action; one end of the movable seat (91) is fixedly connected with a cutting mechanism (10).

6. A fault repair and dispatching device for communication cables according to claim 5, characterized in that, The sidewall and bottom plate of the movable seat (91) are hollow cavities filled with magnetorheological fluid, and an electromagnet is provided on the lower surface of the bottom plate of the movable seat (91); the movable seat (91) and the tensioning mechanism are respectively provided with matching electrical contacts, and the electromagnet is electrically connected to the electrical contacts; after the electromagnet is energized through the electrical contacts, the magnetorheological fluid filled in the sidewall and bottom plate of the movable seat (91) is transformed into a solid-like substance with a certain rigidity, and an electromagnetic shielding layer with a uniform magnetic field distribution is formed on the outside of the cable.

7. A fault repair and dispatching device for communication cables according to claim 5, characterized in that, The control system includes a controller (4) and an electrical cabinet (5); the controller (4) is provided with a data input interface for connecting external testing equipment and is electrically connected to the electrical cabinet (5).

8. A fault repair and dispatching device for communication cables according to claim 5, characterized in that, The tensioning mechanism includes: a fixed wheel (92), a transmission shaft (93), and a tensioning wheel (94); the fixed wheel (92) is fixedly connected to the movable seat (91), and the side wall of the movable seat (91) is movably connected to the transmission shaft (93), so that one of the fixed wheels (92) rotates to drive the other fixed wheel (92) to rotate; the tensioning wheel (94) is movably connected to the movable seat (91), and a second rotating shaft (95) is rotatably connected to one side of the tensioning wheel (94); the side wall of the movable seat (91) opposite to the second rotating shaft (95) is provided with a shaft connecting to the second rotating shaft (95). The sliding groove (96) matches the rotating shaft (95), and the other side of the rotating shaft (95) is rotatably connected to the sliding plate (97); the side wall of the movable seat (91) opposite to the sliding plate (97) is provided with a limiting groove (98) that matches the sliding plate (97); the two ends of the tension wheel (94) are respectively fixedly connected to the tension pressing assembly (910) by the elastic spring (99), and the tension pressing assembly (910) is connected to the top of the side wall of the movable seat (91) by the limiting assembly; one end of the movable seat (91) is fixedly connected to the connecting plate (101) for fixing the cutting mechanism (10).

9. A fault repair and dispatching device for communication cables according to claim 5, characterized in that, The cutting mechanism (10) includes a limiting ring rail (102), a rotating toothed ring (103), a pressure assembly (104), and a cutter (105); the limiting ring rail (102) is fixedly connected to the connecting plate (101), and the limiting ring rail (102) is slidably connected to the rotating toothed ring (103); one side of the rotating toothed ring (103) is fixedly connected to the pressure assembly (104) for pressing the cable, and the pressure assembly (104) is movably connected to the cutter (105) for cutting the cable insulation layer; the limiting ring rail (102) has an annular groove inside, and a limiting ring matching the annular groove is fixedly connected to the inner wall of the rotating toothed ring (103); a plurality of ball bearings are movably connected between the annular groove and the inner wall of the limiting ring for easy movement.

10. A fault repair and dispatching device for communication cables according to claim 8, characterized in that, The electrical contacts of the tensioning mechanism and the movable seat (91) are respectively located on the inner walls of the sliding plate (97) and the limiting groove (98).

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