CN206116999U - A bypass construction system for agricultural distribution network lines - Google Patents

Abstract

The utility model discloses a bypass building system of a rural distribution network line, which comprises a mobile cable distribution vehicle, a tensioner, a flexible cable, a cable distribution traction member, a traction rope, a winching and load switch vehicle and a cable distribution pulley; the movable cable distribution vehicle comprises a crawler chassis, a cable turntable and a driving device thereof, wherein a flexible cable on the cable turntable is a specially-made tension flexible cable, and the front end and the rear end of a cable distribution traction component are respectively connected with a traction rope and the flexible cable; the hauling cable traction component is fixed on the turntable of the winching machine after passing through the cable distribution pulley fixed on the electric pole, and the flexible cable can be erected by rotating the turntable of the winching machine while controlling the paying-off of the turntable of the electric disk. The load switch vehicle comprises a crawler chassis and a load switch, wherein the load switch can be erected and laid down. The on-off of the bypass can be controlled after the load switch is in butt joint with the flexible cable. The movable cable distribution vehicle and the load switch vehicle can automatically carry the flexible cable and the load switch through the crawler chassis, so that the whole bypass is safely and efficiently constructed.

Description

A bypass construction system for agricultural distribution network lines

technical field

The utility model relates to an agricultural distribution network line, in particular to a bypass construction system for the agricultural distribution network line.

Background technique

With the rapid development of the rural economy and the increase of household appliances year by year, all walks of life have higher and higher requirements for the reliability of the power supply of the rural distribution network. Electricity demand, live work has also begun to gradually extend to the agricultural distribution network.

With the rapid development of the rural economy and the increase of household appliances year by year, the uninterrupted operation of the distribution network has begun to be promoted from the urban distribution network to the rural distribution network. The "bypass operation method" is mainly used for live maintenance of distribution network lines. Its working principle is to quickly build a temporary bypass power supply line on site through a flexible power cable, quick-connect cable connectors and bypass switches to bridge faults. Or the line section to be repaired. Then, through the operation of the bypass switch, the power supply is led to the temporary bypass power supply cable line to maintain uninterrupted power supply to users. Then disconnect the power supply of the faulty line section, enter the power-off state for maintenance, and then put it into operation again after the maintenance is completed.

However, since the lines of the agricultural distribution network are mostly located in mountainous areas, hills and rice fields, the roads are narrow and the traffic is inconvenient, cable cars and insulated bucket trucks for bypass operations cannot enter the work site of the agricultural distribution network, so the conventional bypass operation method must be carried out in the agricultural distribution network. In the development, there are problems that the bypass cable is difficult to carry and the cable turntable is not easy to install and fix. The load switch also has the problems of being difficult to carry and install and fix.

In addition, the current conventional cable has only one shielding layer, which is braided with tinned copper wire + Kelvar fiber in half and half, and the metal wire and fiber will interact with each other during the braiding process. The hardness is greater than that of the fiber, so there is a defect that the metal wire is easy to split the fiber; on the other hand, the surface coverage of the composite braided copper wire is small, and its ability to prevent the interference of the external electromagnetic signal of the cable is relatively poor; the composite braided copper wire Mixed with fibers, it is difficult to separate, and the connection is cumbersome and time-consuming; the most important thing is that the number of fibers used in composite braiding is small, so the longitudinal tensile strength of the cable is poor, and the ability to withstand tension is poor.

Therefore, when using the existing bypass operation method for cable installation, the bypass operator needs to stand on the insulating platform installed on the tower to work, and then suspend the steel wire rope and bypass cable on the tower. The laying process is very complicated. Operators are not safe either.

Utility model content

The purpose of the utility model is to provide a tension flexible cable bypass construction system that can automatically move the flexible cable and the load switch to a suitable position and can simplify the construction steps, improve work efficiency, and reduce the force requirements on the pole, which is safe and efficient build bypass.

The bypass construction system of the agricultural distribution network disclosed by the utility model includes a mobile cloth cable car, a tension machine, a flexible cable, a cloth cable traction member, a traction rope, a winch mill and a load switch car, and a cloth cloth fixed on the pole. Cable pulley; mobile cloth cable car includes a crawler chassis, a cable turntable and its driving device. The crawler chassis includes a chassis power unit, two crawlers and a bracket supporting the crawler. The front and rear ends of the bracket have track drive wheels and guide wheels respectively. There are supporting pulleys and supporting wheels on the lower side, the driving device is fixed on the bracket, the cable turntable is arranged above the driving device, and the flexible cable is wound on the cable turntable; the cable traction components include a head plate, a tail plate and two The connecting rope connected as a whole, the outer end of the flexible cable is connected to the rear side of the tail plate after passing through the tension machine, the traction rope is connected to the front end of the head plate, and the traction rope is fixed after passing through the cable pulley fixed on the pole On the turntable of the winch; through the movement of the crawler chassis to realize the walking of the whole vehicle, through the driving device to make the cable turntable rotate forward or reverse to realize the retraction of the flexible cable, through the winch to drive the traction rope to complete the layout of the flexible cable The load switch car includes a crawler chassis and a load switch. The crawler chassis includes two crawlers, a support frame and a chassis power device. The bottom of the load switch is connected with a running mechanism, the running mechanism is connected with a power device, and the top of the support frame is connected with a transition frame. The transition frame includes a longitudinal guide rail. The power device is fixed on the transition frame to drive the traveling mechanism to move along the longitudinal guide rail. The load switch can rotate around the traveling mechanism; Both the support member and the load switch can rotate around the hinge; joints are provided on the flexible cable, and the load switch car and the flexible cable are connected through plug-in joints, and the load switch car controls the power on and off of the entire bypass.

The cable turntable includes four partition disks fixed on the same rotating shaft, each partition disk includes a circumferential ring, a radial support rod and a shaft sleeve, each partition disk is connected to the shaft through a shaft sleeve so that the partition disks rotate together with the shaft, The corresponding partition discs are connected as a whole through axial support rods; the rotating shaft is arranged on the central plane between the two caterpillars. The flexible cables are respectively wound on the rotating shafts between adjacent partition plates.

The driving device includes a reduction motor, a pair of gear pairs, a transmission shaft and a transmission wheel connected thereon, the output shaft of the reduction motor is vertically arranged, and there are two assembly parts of the transmission wheel and the transmission shaft. Arranged on both sides in parallel, one gear of the gear pair is connected to the upper end of the output shaft of the deceleration motor, and the other gear meshed with it is connected to the end of one of the transmission shafts, and the two transmission shafts are connected by a pulley and The belt is in one piece.

The transmission shafts are respectively fixed on the brackets through bearing seats; the geared motors are fixed on the brackets through mounting seats.

The outer wall of the transmission wheel is in contact with the outer wall of the circumferential ring at both ends of the cable turntable, and the rotation of the transmission wheel drives the rotation of the circumferential ring, thereby driving the rotation of the rotating shaft to realize the retraction of the cable.

In order to ensure the stability of the rotation of the cable turntable and facilitate the loading and unloading of the cable turntable, the mobile cloth cable car also includes two sets of clamping devices that respectively clamp the circumferential rings at both ends of the cable turntable. Each set of clamping devices includes a fixed roller assembly and a connection The movable roller assembly with the elastic assembly, the fixed roller assembly and the movable roller assembly are arranged vertically and correspondingly, and the elastic assembly is arranged horizontally along the axial direction of the rotating shaft.

The fixed roller assembly is located on the outside of the circumferential ring, and includes a roller and a roller shaft. The roller is arranged vertically and has an annular groove in the middle of its length direction. The roller shaft is connected to the lower end of the roller, and a bearing and a bearing seat are connected to the roller shaft. The bearing seat is fixed on the support, and the roller shaft is also connected with a limit seat located above the bearing seat through a key.

The movable roller assembly includes a roller and a roller shaft connected to its lower end.

The elastic assembly includes pull rods, connecting rods and handles arranged in sequence along the axial direction of the rotating shaft, the pull rods are fixed on the bracket through the mounting base, the lower end of the roller shaft is vertically connected to the end of the pull rod, the mounting base and the pull rod There is a spring between the ends, the tie rod and the connecting rod are connected by a threaded head and a lock nut, the handle is hinged to the outer end of the connecting rod, the handle is also hinged with a guide seat, and the front end of the guide seat is connected to the connecting rod through a guide sleeve superior. Or the elastic assembly includes a tie rod frame, a connecting rod and a handle that are arranged in sequence along the axis of the rotating shaft. The two ends are connected as a whole through the connecting beam, the middle part of the connecting beam is connected with the connecting seat for connecting the roller shaft of the movable roller assembly, the other ends of the two pull rods are connected as a whole through the connecting column parallel to the connecting beam, and one end of the connecting rod is connected On the connecting column, the other end is hinged with the handle as a whole, and the handle is also hinged with a guide seat, and the front end of the guide seat is connected to the connecting rod through a guide sleeve. Pull the handle to drive the connecting rod to move outward through the guide sleeve, and drive the pull rod seat to move outward, and the movable roller assembly moves outward accordingly, so that the distance between the movable roller assembly and the fixed roller assembly increases, and the spring is compressed at the same time; When the handle is opened, the entire elastic assembly and the movable roller assembly return to their original positions under the restoring force of the spring. The circumferential rings of the separating discs at both ends of the cable turntable are clamped between the annular grooves of the two rollers of the fixed roller assembly and the movable roller assembly, and the clamping and loosening of the circumferential rings is realized by the elastic assembly.

The flexible cable includes an inner semiconductive layer, an insulating layer, an outer semiconductive layer, a shielding layer, and a sheath layer covering the conductor in sequence from the inside to the outside. The shielding layer is a metal shielding layer, and a fiber braiding layer is arranged between the shielding layer and the sheath layer, and the fiber braiding layer is used to enhance the ability of the cable to withstand axial tension when laying cables.

As a preference: the fiber braided layer adopts Kelvar fiber material, and isolation layers are respectively arranged on both sides of the fiber braided layer, and the two sides of the fiber braided layer are respectively provided with isolation layers, and the isolation layer is formed by wrapping non-woven fabric; the shielding layer It is braided with tinned soft copper wire, and the conductor is made of soft grade tinned multi-strand copper wire; the base material of the inner semi-conductive layer is blended with EPDM and silicone rubber, which is blended with EPDM by taking advantage of the high and low temperature resistance of silicone rubber To improve the oil resistance, high and low temperature resistance and insulation performance of EPDM; the insulating layer is made of EPDM rubber material; the surface of the conductor is wrapped with an isolation film; the sheath layer is made of weather-resistant CPE rubber material.

The cable pulling member includes a head plate, a tail plate and a connecting rope connecting the two. The front end of the head plate has a connecting hole for connecting the traction rope, and the rear side of the tail plate has a joint for connecting cables.

The head plate is an isosceles triangular plate, the apex of which is the front end, and the two ends of the bottom in the length direction are provided with connecting columns for fixing the connecting rope.

The tail plate is a rectangular plate, the two ends in the length direction of the front side are respectively provided with connecting columns corresponding to the head plate, and the two ends in the length direction of the rear side and the middle position are respectively provided with the connectors for connecting cables .

There are two connecting ropes, which are connected between the connecting posts on the head plate and the tail plate.

The midpoint in the length direction of the bottom edge of the head plate is connected with a self-hanging member through a joint to prevent the head plate from twisting.

The self-hanging component includes several unit sections hinged to each other sequentially, the first unit section is connected to the connecting head, and each unit section can rotate around the hinge.

The supporting frame of the load switch car includes a longitudinal frame body supporting two crawlers and a plurality of transverse connecting beams connecting the two longitudinal frame bodies as a whole, and reinforcing beams are connected between the transverse connecting beams. The setting of the reinforcing beam can enhance the force bearing capacity of the supporting frame.

The transition frame also includes a rectangular frame body supporting the longitudinal guide rail, the rectangular frame body includes a longitudinal support beam and a transverse support beam connected between the longitudinal support beams, the lower side of the longitudinal support beam is connected to the on the horizontal connecting beam. The installation of the guide rail and the installation and fixing of the bottom of the load switch are realized through the transition frame.

The longitudinal frame body, the transverse connecting beam, the rectangular frame body and the U-shaped frame are all made of rectangular tubes, the longitudinal guide rails are made of channel steel, and the two longitudinal guide rails are arranged on the longitudinal support beam with openings facing each other. The use of profiles reduces processing difficulty while ensuring mechanical performance.

The traveling mechanism includes a connecting seat, a traveling seat, a roller and its axle, the upper end of the connecting seat is connected to the bottom of the load switch, and the lower end is connected to the axle to rotate around the axle, and the two axles are symmetrically connected to both sides of the traveling seat. The walking seat has an axial central hole, and the rollers are located in the slots of the longitudinal guide rails. The traveling mechanism converts the rotary motion of the screw rod into the linear motion of the traveling seat through the T-shaped nut seat, and drives the rollers to move along the longitudinal guide rail through the traveling seat.

The connecting seat includes a T-shaped plate and a U-shaped seat at its upper end, the lower end of the T-shaped plate is connected to the wheel shaft and can rotate around the wheel shaft, the upper end is connected with the bottom plate of the U-shaped seat through bolts, and the open end of the U-shaped seat is welded on the bottom plate of the load switch. The lower end of the T-shaped plate can rotate around the wheel shaft to ensure that the load switch can realize a flat state.

The power device includes a geared motor, a screw and a T-shaped nut seat. The geared motor and the screw are arranged horizontally on the center plane between the longitudinal guide rails. The output shaft of the geared motor is connected to the screw through a coupling. T The type nut seat is connected to the screw rod, and the two ends of the screw rod are connected to the transverse support beam through the fixing base. The aforementioned structural configuration of the driving device is simple and can convert rotary motion into linear motion, making the structure compact and easy to arrange.

The walking seat is connected to the screw rod through its axial central hole, and its end is detachably connected with the T-shaped nut seat. The T-shaped nut seat drives the traveling seat to move along the screw rod, so as to realize the movement of the roller.

The support member is a support rod with hinged holes at both ends.

The bottom of the load switch is provided with a supporting foot and a lifting frame.

The cable trolley includes a pulley, a fixed frame and a movable cover plate. The fixed frame is L-shaped and arranged at the upper end of the horizontal side. An ear plate is connected to the upper side of the horizontal side. One end of the pulley wheel shaft is vertically connected to the vertical side of the fixed frame. The lower end of the straight side and the lower end of the movable cover plate are hinged on the other end of the pulley wheel shaft, and the upper end is clamped with the horizontal edge outer end of the fixed frame, and the movable cover plate can rotate around the hinge.

The mobile cloth cable car of the utility model drives the walking and transportation cables of the whole vehicle through the crawler chassis, and after reaching the designated position, the driving device drives the rotation of the cable turntable to realize the retraction and release of the cables, reducing the labor intensity of operators and improving work efficiency. In order to simplify the structure, both the driving device and the cable turntable are fixed on the bracket of the crawler chassis. The driving device adopts gear transmission to cooperate with the setting of synchronous belt and transmission wheel, so that the separation discs at both ends of the cable turntable are driven to rotate through the transmission wheel. In order to ensure the stable rotation of the cable turntable, a clamping device is provided on the lower side of the cable turntable, and the elastic component of the clamping device can also facilitate the loading and unloading operation of the cable turntable. In order to further ensure the stability of the cable turntable, the fixed roller assembly of one clamping device is arranged on the outer side of the end circumferential ring, and the fixed roller assembly of each other clamping device is arranged on the inner side of the corresponding end circumferential ring. The active roller assembly is configured with elastic assemblies of different structures.

The shielding layer of the flexible cable adopts a metal shielding layer, and a fiber braiding layer is added outside the metal shielding layer, and the fiber braiding layer is reinforced with Kelvar fiber so that the cable itself can bear the axial tension when laying the cable. Compared with the existing technology, since the bypass cable itself can withstand the tension during cable laying, the bypass cable can be directly laid on the tower of the agricultural distribution network without laying steel wire ropes in advance, which not only simplifies the process steps but also reduces the impact on the tower. Load, improve construction safety. In order to improve the shielding performance of the shielding layer, the shielding layer is all braided with tinned annealed copper wire, which doubles the surface coverage of the copper wire and greatly improves the anti-interference ability of the bypass cable to external electromagnetic signals. In addition, after the metal shielding layer and the fiber braiding layer are separated and processed separately, it is also convenient for operation during terminal connection and improves efficiency. Isolation layers are arranged on both sides of the newly added fiber braided layer. On the one hand, the fiber braided layer is isolated from the metal shield to avoid mutual friction. On the other hand, the fiber braided layer is isolated from the sheath layer to avoid mutual contact with the sheath layer. Sticking results in an inability to separate the fibers to the extent that it affects the connection handling of the bypass cable to the terminal.

The cable laying traction member is dragged by the traction rope to realize the laying of the tension flexible cable. It only needs to set the cable bracket on the pole, and the tension flexible cable can be placed on several cable brackets at one time. The operation is simple and fast. In order to prevent twisting during traction, a self-hanging member is connected to the head plate, and the head plate is kept balanced by the gravity of the self-hanging member, so as to prevent the cable from twisting during traction. In order to enable quick connection between the cable and the traction member, a quick connector is connected to the end of the cable, and the quick connector can be quickly connected to the connector provided on the rear side of the tail plate. The traction rope can be powered by the drone, and with the winch, the tension cable can be conveniently erected on the pole.

The load switch vehicle can keep the load switch in both lying and upright states through the cooperation of the traveling mechanism, the power device and the supporting components, and transport the load switch to the appropriate position for building the bypass through the crawler chassis. During the moving process of the whole vehicle, the load switch is placed in a flat state, and the center of gravity is lowered to improve the stability during the moving process. After reaching a suitable position, the load switch is placed in an upright state to work.

The cable trolley is connected and fixed with the extension rod of the hoop on the pole through the connection hole of the ear seat of the fixing frame. When the traction rope is powered to drive the flexible cable to pass through the wheel groove of the pulley, the movable cover is opened, and when the flexible cable passes through After all the pulleys, fix the ends on the winch, and engage the upper end of the movable cover with the movable cover.

Description of drawings

Fig. 1 is a schematic view of the utility model when the flexible cable is erected.

Fig. 2 is a schematic diagram of the bypass system after the flexible cable is erected.

Fig. 3 is a structural schematic diagram of the mobile cloth cable car.

FIG. 4 is a schematic top view of FIG. 3 .

FIG. 5 is a schematic bottom view of FIG. 3 .

FIG. 6 is a schematic left view of FIG. 3 .

FIG. 7 is a schematic right view of FIG. 3 .

Fig. 8 is a schematic diagram of the three-dimensional structure of the mobile cloth cable car.

Fig. 9 is a structural schematic diagram of a cable-laying traction member.

FIG. 10 is a schematic top view of FIG. 9 .

Fig. 11 is a structural schematic diagram of a load switch car.

FIG. 12 is a schematic bottom view of FIG. 11 .

FIG. 13 is a schematic top view of FIG. 11 .

FIG. 14 is a schematic right view of FIG. 11 .

FIG. 15 is a schematic left view of FIG. 11 .

Fig. 16 is a schematic perspective view of the three-dimensional structure of the load switch car.

Fig. 17 is a schematic diagram of an enlarged structure of a flexible cable.

Fig. 18 is a schematic diagram of the closed state of the movable cover of the cable laying block.

Fig. 19 is a schematic diagram of the open state of the movable cover of the cable laying block.

detailed description

The bypass construction system for the agricultural distribution network line provided in this embodiment includes a mobile cloth cable car 1, a tension machine 2, a flexible cable 3, a cable cloth traction member 4, a traction rope 5, a winch mill 6 and a load switch car 7, Laying cable tackle 8, as shown in Figure 1 and Figure 2.

As shown in FIGS. 3 to 8 , the mobile cloth cable car 1 includes a crawler chassis 11 , a driving device 12 , a cable turntable 13 , a clamping device A4 , and a clamping device B5 . The crawler chassis 11 includes a chassis power unit DPDL, two crawler belts 111 and a bracket 112 supporting the crawlers on both sides. The front and rear ends of the bracket 112 are respectively provided with a crawler belt driving wheel 113 and a guide wheel 114. The upper side of the bracket 112 has a supporting pulley 115, a lower There are rollers 116 on the side, the driving device 12 is fixed on the bracket 112 , and the cable turntable 13 is arranged above the driving device 12 .

The cable turntable 13 includes four partition discs 132 fixed on the same rotating shaft 131. Each partition disc 132 includes a circumferential ring 1321, a radial support rod 1322 and a shaft sleeve 1323. Each partition disc 132 is connected to the shaft 131 through the shaft sleeve 1323. The partition disks 132 are rotated together with the rotating shaft 131 , and the corresponding partition disks 132 are connected as a whole through the axial support rods 133 . The rotating shaft 131 is arranged on the center plane between the two caterpillar belts 111 .

The driving device 12 comprises a reduction motor 121, a pair of gear pairs 122, a transmission shaft 123 and a transmission wheel 124 connected thereon, the output shaft of the reduction motor 121 is vertically arranged, and there are two assembly parts of the transmission wheel 124 and the transmission shaft 123, Arranged parallel to the two sides along the axial direction of the rotating shaft 121, one gear of the gear pair 122 is connected to the upper end of the output shaft of the reduction motor 121, and the other gear meshed with it is connected to the end of one of the transmission shafts 123. The shafts 123 are connected as a whole by a pulley 125 and a belt 126 .

The transmission shafts 123 are respectively fixed on the brackets 112 through the bearing seats. The reduction motor 121 is fixed on the bracket 112 through the mounting base.

The outer wall of the transmission wheel 124 is in contact with the outer wall of the circumferential ring 1321 at both ends of the cable turntable 13, and the rotation of the transmission wheel 124 drives the rotation of the circumferential ring 1321 to drive the rotation of the rotating shaft 131 to realize the cable retraction.

In order to ensure the stability of the rotation of the cable carousel 13 and facilitate the loading and unloading of the cable carousel 13, the mobile cable car also includes two sets of clamping devices A4 and B5 that respectively clamp the circumferential rings at both ends of the cable carousel 13. Both sets of clamping devices include a fixed roller assembly GDGL and an elastic movable roller assembly HDGL, the fixed roller assembly GDGL and the movable roller assembly HDGL are vertically arranged correspondingly, and the elastic assembly is arranged horizontally along the axial direction of the rotating shaft 131 .

The fixed roller assembly GDGL is located on the outer side of the circumferential ring 1321 at one end of the cable turntable 13, and includes the roller GL and the roller shaft. The roller GL is vertically arranged, and there is an annular groove in the middle of its length direction. The roller shaft is connected to the lower end of the roller GL, and the roller shaft is connected to Bearing and bearing seat are arranged, and bearing seat is fixed on the support 112, and roller shaft is also connected with the limit seat XWZ that is positioned at the bearing seat top by key, movable roller assembly HDGL includes roller GL and the roller shaft GLZ that is connected at its lower end.

The elastic assembly of the clamping device A4 includes a pull rod LG, a connecting rod LJG and a handle SB which are connected in sequence along the axis of the rotating shaft 131. The pull rod LG is fixed on the bracket 12 through the mounting seat, and the lower end of the roller shaft GLZ is vertically connected to the end of the pull rod LG. There is a spring TH between the mounting seat and the end of the tie rod LG, and the connection between the tie rod LG and the connecting rod LJG is connected by a threaded head and a lock nut. The handle SB is hinged on the outer end of the connecting rod LJG, and the handle SB is also hinged. The guide seat DXZ, the front end of the guide seat DXZ is connected on the connecting rod LJG through the guide sleeve DXT.

The elastic component of the clamping device B5 includes a tie rod frame LGJ, a connecting rod LJG and a handle SB arranged in sequence along the shaft 131 axially. , the outer ends of the two tie rods LG are connected as a whole through the connecting beam LJL, and the middle part of the connecting beam LJL is connected with the connecting seat LJZ for connecting the roller shaft GLZ of the movable roller assembly HDGL, and the other ends of the two tie rods LG are connected through a joint parallel to the connecting beam LJL. The connecting column LJZ is connected as a whole, one end of the connecting rod LJG is connected to the connecting column LJZ, and the other end is hinged to the handle SB as a whole, the handle SB is also hinged with a guide seat DXZ, and the front end of the guide seat DXZ is connected to the connecting rod through the guide sleeve DXT On LJG.

The fixed roller assembly GDGL of the clamping device A4 is located outside the circumferential ring at one end of the cable turntable, and the fixed roller assembly GDGL of the clamping device B5 is located inside the circumferential ring at one end of the cable turntable, which is more conducive to the axial limit of the cable turntable and is more conducive to Movement stability of the cable carousel.

The working principle of the clamping device is as follows: when the handle is pulled to drive the connecting rod to move outward through the guide sleeve, it drives the rod seat to move outward, and the movable roller assembly moves outward accordingly, increasing the distance between the movable roller assembly and the fixed roller assembly. Large, and the spring is compressed at the same time; release the handle, and under the restoring force of the spring, the entire elastic component and the movable roller component return to their positions. The circumferential rings of the separating discs at both ends of the cable turntable are clamped between the annular grooves of the two rollers of the fixed roller assembly and the movable roller assembly, and the clamping and loosening of the circumferential rings is realized by the elastic assembly.

The mobile cloth cable car drives the walking and transporting cables of the whole vehicle through the crawler chassis. After reaching the designated position, the driving device drives the rotation of the cable turntable to realize the retraction and release of the cables, reducing the labor intensity of the operators and improving work efficiency. In order to simplify the structure, both the driving device and the cable turntable are fixed on the bracket of the crawler chassis. The driving device adopts gear transmission to cooperate with the setting of synchronous belt and transmission wheel, so that the separation discs at both ends of the cable turntable are driven to rotate through the transmission wheel. In order to ensure the stable rotation of the cable turntable, a clamping device is provided on the lower side of the cable turntable, and the elastic component of the clamping device can also facilitate the loading and unloading operation of the cable turntable. In order to further ensure the stability of the cable turntable, the fixed roller assembly of the clamping device A is arranged on the outer side of the end circumferential ring, the fixed roller assembly of the clamping device B is arranged on the inner side of the corresponding end circumferential ring, and the movable roller assembly of the clamping device at both ends Components configure elastic components of different structures.

The assembly and use process of the mobile cable car is as follows:

(1) Select a suitable location according to the site environment to install the drive device of the cable turntable on the bracket of the crawler chassis;

(2) Assemble the two sets of clamping devices on the bracket at the center plane between the two power wheels;

(3) Install the cable turntable above the driving device, so that the power wheels of the two sets of driving devices are symmetrically arranged on both sides of the lower part of the circumferential ring at the end of the cable turntable, and the outer wall of the power wheel is in contact with the outer wall of the circumferential ring, so that the driving device It can drive the cable turntable to rotate forward and reverse; the power wheel supports the circumferential ring at the same time;

(4) Adjust the handle of the elastic assembly connecting the clamping device and the movable roller assembly, so that the circumferential ring clamping the end of the cable turntable by the two rollers is located in the annular groove of the two rollers;

(5) The power unit of the remote control crawler chassis works, so that the mobile cloth cable car moves to the work site, and prepares for the laying of the bypass cable;

(6) The deceleration motor of the remote control drive works, and the power drives the cable turntable to rotate forward to make the cable turntable pay off, and the bypass cable starts to be laid;

(7) After the bypass operation is completed, the remote control drive device drives the cable reel to reverse, so that the cable turntable can retract and reel the released bypass cable;

(8) The power unit of the remote control crawler chassis works, so that the mobile cloth cable car exits the job site.

When the cable turntable is disassembled, the movable roller assembly is kept away from the circumferential ring at the end of the cable turntable by adjusting the handle of the elastic component of the clamping device. Even if the distance between the two rollers clamping the circumferential ring increases, the cable turntable is removed.

As shown in Fig. 9 and Fig. 10, the cable laying traction member 4 includes a head plate 41, a tail plate 42 and a connecting rope 43 connecting the two as a whole. The front end of the head plate 41 has a connecting hole for connecting the traction rope. 42 The rear side of the board has connectors 44 for connecting cables.

The head plate 41 is an isosceles triangular plate, the apex of which is the front end, and the two ends in the length direction of the bottom are provided with connecting posts 45 for fixing the connecting rope 43 .

The tail plate 42 is a rectangular plate, and the two ends in the length direction of the front side are respectively provided with connecting columns 45 corresponding to the head plate 41, and the two ends in the length direction of the rear side and the middle position are respectively provided with connectors 44 for connecting cables. That is to say, the tail plate can be connected with three flexible cables at the same time to complete the traction.

There are two connecting ropes 43, which are connected between the connecting posts 45 on the head plate 41 and the tail plate 42.

A self-hanging member 47 is connected to the midpoint of the length direction of the bottom edge of the head plate 41 through a joint 46 to prevent the head plate 41 from twisting.

The self-hanging member 47 includes several unit sections hinged to each other sequentially, the first unit section is connected to the connecting head, and each unit section can rotate around the hinge.

In order to enable quick connection between the cable and the traction member, a quick connector can be connected to the end of the cable, and the quick connector can be quickly connected to the connector provided on the rear side of the tail plate. The traction rope can be powered by the drone, and with the winch, the tension cable can be conveniently erected on the pole.

As shown in FIGS. 11 to 16 , the load switch vehicle 7 includes a crawler chassis 71 , a load switch 72 , a traveling mechanism 73 , a power unit 74 , a transition frame 75 , and a support member 76 .

The crawler chassis 71 includes two crawler belts 711, a support frame 712 and a chassis power unit 713. The front and rear ends of the support frame 712 have crawler belt drive wheels 714 and guide wheels 715 respectively. There are rollers 716.

The support frame 712 includes a longitudinal frame body 7121 supporting two crawler belts 711 and a plurality of transverse connecting beams 7122 connecting the two longitudinal frame bodies 7121 as a whole, and reinforcing beams 7123 are connected between the transverse connecting beams 7122 . The arrangement of the reinforcement beam 7123 can enhance the force bearing capacity of the support frame 712 .

The transition frame 75 includes a longitudinal guide rail 751 and a rectangular frame body supporting the longitudinal guide rail 751. The rectangular frame body includes a longitudinal support beam 752 and a transverse support beam 753 connected between the longitudinal support beams 752. The lower side of the longitudinal support beam 753 passes through a U-shaped The frame 754 is connected to the transverse connecting beam 7122 . The installation of the longitudinal guide rail 751 and the installation and fixing of the bottom of the load switch 72 are realized through the transition frame 75 .

The longitudinal frame body 7121, the transverse connecting beam 7122, the longitudinal support beam 752, the transverse support beam 753 and the U-shaped frame 754 are all made of rectangular tubes, the longitudinal guide rail 751 is made of channel steel, and the two longitudinal guide rails 751 are arranged on the longitudinal support beam 752 with openings facing each other. superior. The use of profiles reduces processing difficulty while ensuring mechanical performance.

The power unit 74 comprises a reduction motor 741, a screw mandrel 742 and a T-shaped nut seat 743, the reduction motor 741 and the screw mandrel 742 are horizontally arranged on the center plane between the longitudinal guide rails 751, and the output shaft of the reduction motor 741 is connected to the wire by a shaft coupling. The rod 742 is connected, the T-nut seat 743 is connected to the screw rod 742 , and the two ends of the screw rod 742 are connected to the transverse support beam 753 through the fixing seat 744 . The aforementioned structural configuration of the driving device is simple and can convert the rotary motion of the screw rod into linear motion through the nut seat, making the structure compact and easy to arrange.

The traveling mechanism 73 includes a connecting seat 731 , a traveling seat 732 , a roller 733 and a roller shaft 734 .

The connecting seat 731 includes a T-shaped plate 7311 and a U-shaped seat 7312 at its upper end. The lower end of the T-shaped plate 7311 is connected to the roller shaft 734, and the upper end is connected to the bottom plate of the U-shaped seat 7312 by bolts. The open end of the U-shaped seat 7312 is welded. On the bottom plate of load switch 72. The lower end of the T-shaped plate 7311 can rotate around the roller shaft 734 to ensure that the load switch can realize a lying state.

The two roller shafts 734 are symmetrically connected to both sides of the traveling seat 732, the traveling seat 732 has an axial central hole, and the rollers 733 are positioned in the notch of the longitudinal guide rail 751. The walking seat 732 is connected to the screw mandrel 742 through its axial central hole, and its end is detachably connected with the T-shaped nut seat 743 as a whole. The T-shaped nut seat 743 drives the traveling seat 732 to move along the screw rod 742 , thereby realizing the movement of the roller 733 . That is, the traveling mechanism 73 converts the rotary motion of the screw mandrel 742 into the linear motion of the traveling seat 732 through the T-shaped nut seat 743, and drives the roller 733 to move along the longitudinal guide rail 751 through the traveling seat 732.

The support member 76 is a support rod with hinged holes at both ends.

The load switch 72 is equipped with functions such as nuclear phase, live indication, self-inspection, wrong-phase locking and alarm, ammeter, air pressure sensor, etc. In order to facilitate placement and lifting installation, the bottom of the load switch 72 is provided with a supporting foot 721 and a lifting frame 722 .

The assembly and operation steps of the load switch car are as follows:

(1) The deceleration motor of the remote control power unit drives the screw to rotate, and the nut seat converts the rotation of the screw to the linear motion of the nut seat, and the nut seat drives the walking seat connected to it to move away from the support along the screw The component end moves, and the traveling seat drives the rollers to move in the notch of the longitudinal guide rail until the load switch is in a flat state;

(2) Select a suitable location according to the site environment to move the load switch car to the work site by remote control of the crawler chassis movement;

(3) The movement of the remote control power unit makes the lower end of the load switch move along the longitudinal guide rail to the end of the support member through the roller of the traveling mechanism, and the support member rotates in the opposite direction until the remote control drive device stops moving when the load switch is in an upright state. support load switch;

(4) Connect the bypass cable and the corresponding interface of the load switch with a quick plug-in connector, so that the load switch is in working condition;

(5) After the work is completed, remove the bypass cable and repeat the operation of step (1);

(6) The remote control load switch vehicle exits the job site.

Through the cooperation of the walking mechanism, the power unit and the supporting components, the load switch can maintain two states of lying down and upright, and the load switch is transported to the appropriate position for building the bypass through the crawler chassis. During the moving process of the whole vehicle, the load switch is placed in a flat state, and the center of gravity is lowered to improve the stability during the moving process. After reaching a suitable position, the load switch is placed in an upright state to work.

The working principle of the load switch car is as follows: since the supporting member and the load switch can rotate around the hinge, before the whole vehicle moves, the movement of the power unit can be controlled to make the lower end of the load switch move away from the end of the supporting member along the longitudinal guide rail through the traveling mechanism. Until the load switch is in a flat state. After moving to a suitable position, control the reverse movement of the power unit so that the lower end of the load switch moves along the longitudinal guide rail to the end of the supporting member through the traveling mechanism until the remote control drive device stops moving when the load switch is in an upright state, and the supporting member supports the load switch from the side . Finally, connect the load switch with the cable to work. The on and off of the bypass is realized through the load switch.

The flexible cable 3 includes a conductor 31, an inner semiconducting layer 32, an insulating layer 33, an outer semiconducting layer 34, a metal shielding layer 35, an inner insulating layer 36, a fiber braiding layer 37, an outer insulating layer 38 and a sheath from the inside to the outside. Layer 39.

Conductor 31 adopts soft-grade tinned multi-strand stranded copper wire. The copper wire can be wrapped with an isolation film as needed.

The base material of the inner semiconductive layer 32 is EPDM.

The insulating layer 33 adopts high grade EPDM rubber material.

The metal shielding layer 35 is all braided with tinned annealed copper wire.

Both the inner isolation layer 36 and the outer isolation layer 38 are wrapped with non-woven fabric.

The sheath layer 39 adopts weather-resistant CPE rubber material.

After the flexible cable separates the metal shielding layer and the fiber shielding layer separately, compared with the existing technology, the fiber braiding layer can be used to increase the axial tension of the bypass cable when laying cables, reduce the load on the tower, and make the cable It is directly laid on the tower, which not only simplifies the laying process and improves the safety of the tower, but also has the following advantages:

A, from the technical point of view, in the weaving process, the metal wire and the fiber of the prior art have an interactive shearing force in the weaving process, because the hardness of the metal wire is larger than that of the fiber, it is easy to split the fiber;

B. From the perspective of shielding performance, the existing technology is due to the composite braiding of metal wires and fibers, and the surface coverage of its copper wires is only half of that of this embodiment. etc.) far less than the present embodiment;

C, from the tensile point of view, the prior art is due to the composite weaving of metal wire and fiber, the number of fibers it adopts is only half of the present embodiment, and the longitudinal tensile force is also greatly reduced;

D. From the perspective of terminal processing, the metal wires and fibers in the prior art are mixed together and are difficult to separate. The metal shielding layer and the fiber braiding layer in this embodiment are independent of each other, can be processed separately, and the operation is simple;

E. In this embodiment, isolation layers are added on both sides of the fiber braided layer, which can isolate the fiber braided layer from the metal shielding layer to avoid mutual friction, and can also isolate the fiber braided layer from the sheath layer to avoid fiber braided layers. The layer and the jacket layer stick to each other, making it impossible to separate the fibers and affecting the termination process.

The cable laying block 8 includes a pulley 81 , a fixed mount 82 and a movable cover 83 . The shape of the fixed mount 82 is L-shaped, arranged at the upper end with the horizontal side, the upper side of the horizontal side is connected with an ear plate 84, one end of the pulley 81 wheel shaft is vertically connected to the lower end of the vertical side of the fixed mount 82, and the lower end of the movable cover plate 83 Hinged to the other end of the wheel shaft of the pulley 81, the upper end is clamped with the outer end of the horizontal edge of the fixed frame 82, and the movable cover plate 83 can rotate around the hinge.

The working process of the whole bypass construction is as follows:

1. Drive the mobile cloth cable car to a suitable location on the site and install it;

2. Install the cable trolley on the pole, so that the height of the cable trolley from the ground is about 1.5m to 2m, and open the movable cover of the cable trolley;

3. The UAV is used to connect the cable and the traction rope. The UAV drives the traction rope to pass through the cable trolley on the last pole and fix it on the turntable of the winch, and then controls the cable turntable of the mobile cable car. Turn the turntable of the winch while turning the pay-off, so that the three flexible cables can pass through the upper side of the chute of the cable pulley pulley on the pole at the same time to complete the erection of the flexible cables;

4. After the flexible cable is erected, connect the butt joint at a suitable position. The butt joint is connected to the load switch car through a quick plug-in joint, and the load switch car controls the power on and off of the entire bypass.

Claims (10)

1. A bypass construction system for agricultural distribution network lines, characterized in that: the system includes a mobile cloth cable car, a tension machine, a flexible cable, a cable cloth traction member, a traction rope, a winch mill and a load switch car and is fixed on a pole The cable laying block on the top; the mobile laying cable car includes a crawler chassis, a cable turntable and its driving device. The crawler chassis includes a chassis power unit, two crawlers and a bracket supporting the crawler. There are supporting pulleys on the upper side and supporting wheels on the lower side, the driving device is fixed on the bracket, the cable turntable is arranged above the driving device, and the flexible cable is wound on the cable turntable; the cable traction components include head plate and tail plate And the connecting rope connecting the two as a whole, the outer end of the flexible cable is connected to the rear side of the tail plate after passing through the tension machine, the traction rope is connected to the front end of the head plate, and the traction rope passes through the cable fixed on the pole The pulley is fixed on the turntable of the winch; the movement of the crawler chassis is used to realize the walking of the whole vehicle, and the cable turntable is rotated forward or reversely through the driving device to realize the retraction and release of the flexible cable. The winch drives the traction rope to make the flexible cable The cables are laid out; the load switch car includes a crawler chassis and a load switch. The crawler chassis includes two crawlers, a support frame and a chassis power unit. The bottom of the load switch is connected with a traveling mechanism, the traveling mechanism is connected with a power Transition frame, the transition frame includes a longitudinal guide rail, the power device is fixed on the transition frame to drive the traveling mechanism to move along the longitudinal guide rail, the load switch can rotate around the travel mechanism; the load switch is also connected to a supporting member, and the two ends of the supporting member respectively pass through the mounting seat Hinged, so that both the supporting member and the load switch can rotate around the hinge; joints are provided on the flexible cable, and the load switch car and the flexible cable are connected through plug-in joints, and the load switch car is used to control the on and off of the entire bypass Electricity. 2. The bypass construction system for agricultural distribution network lines as claimed in claim 1, wherein the cable carousel of the mobile cable car includes four partition plates fixed on the same rotating shaft, and each partition plate includes a circumferential ring , radial support rods and shaft sleeves, each partition disc is connected to the rotating shaft through the shaft sleeve so that the partition discs rotate together with the shaft, and the corresponding partition discs are connected as a whole through axial support rods; the rotating shafts are arranged on the two crawlers between the central planes; the flexible cables are respectively wound on the shafts between the adjacent partitions. 3. The bypass construction system of the agricultural distribution network line as claimed in claim 2, characterized in that: the driving device of the mobile cloth cable car includes a reduction motor, a pair of gear pairs, a transmission shaft and a transmission wheel connected thereto, The output shaft of the geared motor is vertically arranged, and there are two assemblies of the transmission wheel and the transmission shaft, which are arranged on both sides in parallel along the axis of the rotating shaft, and one gear of the gear pair is connected to the upper end of the output shaft of the geared motor , the other gear meshing with it is connected to the end of one of the transmission shafts, the two transmission shafts are connected as a whole through a pulley and a belt, and the transmission shafts are respectively fixed on the bracket through the bearing seat; the geared motor passes through the mounting seat It is fixed on the bracket; the outer wall of the transmission wheel is in contact with the outer wall of the circumferential ring at both ends of the cable turntable, and the rotation of the transmission wheel drives the rotation of the circumferential ring, thereby driving the rotation of the rotating shaft to realize the retraction of the cable. 4. The bypass construction system for agricultural distribution network lines as claimed in claim 3, characterized in that: said mobile cloth cable car also includes two sets of clamping devices respectively clamping the circumferential rings at both ends of said cable turntable, each set of clamping devices Each holding device includes a fixed roller assembly and a movable roller assembly connected with an elastic assembly, the fixed roller assembly and the movable roller assembly are arranged vertically and correspondingly, and the elastic assembly is arranged horizontally along the axial direction of the rotating shaft; The fixed roller assembly is located on the outside of the circumferential ring, including rollers and roller shafts. The rollers are arranged vertically. There is an annular groove in the middle of the length direction. The roller shafts are connected to the lower ends of the rollers. Bearings and bearing seats are connected to the roller shafts. The bearing seats Fixed on the bracket, the roller shaft is also connected with a limit seat located above the bearing seat through a key; The elastic assembly includes pull rods, connecting rods and handles arranged in sequence along the axial direction of the rotating shaft, the pull rods are fixed on the bracket through the mounting base, the lower end of the roller shaft is vertically connected to the end of the pull rod, the mounting base and the pull rod There is a spring between the ends, the tie rod and the connecting rod are connected by a threaded head and a lock nut, the handle is hinged to the outer end of the connecting rod, the handle is also hinged with a guide seat, and the front end of the guide seat is connected to the connecting rod through a guide sleeve or the elastic assembly includes a tie rod frame, a connecting rod and a handle that are arranged in sequence along the axial direction of the rotating shaft. The two ends are connected as a whole through the connecting beam, the middle part of the connecting beam is connected with the connecting seat for connecting the roller shaft of the movable roller assembly, the other ends of the two pull rods are connected as a whole through the connecting column parallel to the connecting beam, and one end of the connecting rod is connected On the connecting column, the other end is hinged with the handle as a whole, and the handle is also hinged with a guide seat, and the front end of the guide seat is connected to the connecting rod through a guide sleeve. 5. The bypass construction system for agricultural distribution network lines according to claim 1, wherein the flexible cable includes an inner semiconductive layer, an insulating layer, an outer semiconductive layer, a shielding layer, and an inner semiconductive layer covering conductors in sequence from the inside to the outside. layer, and a sheath layer, the shielding layer is a metal shielding layer, and a fiber braiding layer is also arranged between the shielding layer and the sheathing layer, and the fiber braiding layer is used to enhance the ability of the cable to withstand axial tension when laying cables. 6. The bypass construction system of the agricultural distribution network line as claimed in claim 5, characterized in that: the fiber weaving layer adopts Kelvar fiber material, and isolation layers are respectively arranged on both sides of the fiber weaving layer; the isolation layer adopts It is made of non-woven fabric; the shielding layer is braided with tinned annealed copper wire; the conductor is made of soft grade tinned multi-strand stranded copper wire; the base material of the inner semiconductive layer is made of EPDM and silicone rubber. The insulation layer is made of EPDM rubber material; the surface of the conductor is wrapped with an isolation film; the sheath layer is made of weather-resistant CPE rubber material. 7. The bypass construction system of the agricultural distribution network line as claimed in claim 1, characterized in that: the head plate of the cable laying traction member is an isosceles triangular plate, the apex of which is the front end, and the length direction of the bottom edge is Both ends are provided with connecting columns for fixing the connecting rope; the tail plate is a rectangular plate, and the two ends of the length direction of the front side are respectively provided with connecting columns corresponding to the head plate, and the length direction of the rear side is two The end and the middle position are respectively provided with the joints for connecting cables; there are two connecting ropes, which are connected between the connecting columns on the head plate and the tail plate; the length direction of the bottom edge of the head plate The midpoint is connected with a self-hanging member through the connecting head to prevent the head plate from twisting; the self-hanging member includes several unit sections hinged to each other in turn, the first unit section is connected to the connecting head, and each unit The joint can rotate around the hinge. 8. The bypass building system for agricultural distribution network lines according to claim 1, characterized in that: the support frame of the load switch car includes a longitudinal frame body supporting two crawler belts and a vertical frame body connecting the two longitudinal frame bodies Several transverse connecting beams, reinforcing beams are connected between the transverse connecting beams; the transition frame also includes a rectangular frame body supporting the longitudinal guide rail, and the rectangular frame body includes a longitudinal support beam and a transverse support beam connected between the longitudinal support beams , the lower side of the longitudinal support beam is connected to the transverse connecting beam through a U-shaped frame; , two longitudinal guide rails are oppositely arranged on the longitudinal support beam with openings. 9. The bypass construction system of the agricultural distribution network line as claimed in claim 8, characterized in that: the traveling mechanism includes a connecting seat, a traveling seat, a roller and its axle, and the upper end of the connecting seat is connected to the bottom of the load switch. Connection, the lower end is connected to the wheel shaft and can rotate around the wheel shaft. The two wheel shafts are symmetrically connected to both sides of the walking seat. The walking seat has an axial center hole, and the roller is located in the notch of the longitudinal guide rail; The U-shaped seat at its upper end, the lower end of the T-shaped plate is connected to the wheel shaft and can rotate around the wheel shaft, the upper end is connected with the bottom plate of the U-shaped seat through bolts, and the open end of the U-shaped seat is welded on the bottom plate of the load switch; The power device includes a geared motor, a screw and a T-shaped nut seat. The geared motor and the screw are arranged horizontally on the center plane between the longitudinal guide rails. The output shaft of the geared motor is connected to the screw through a coupling. T The type nut base is connected to the screw rod, and the two ends of the screw rod are connected to the horizontal support beam through the fixed seat; the walking seat is connected to the screw rod through its axial center hole, and its end is The T-shaped nut seat is detachably connected as a whole; the support member is a support rod with hinged holes at both ends; the bottom of the load switch is provided with a support foot and a lifting frame. 10. The bypass construction system for agricultural distribution network lines according to claim 1, wherein the cable laying trolley includes a pulley, a fixed frame and a movable cover, and the fixed frame is L-shaped, with the horizontal side positioned The upper end is arranged, the upper side of the horizontal side is connected with an ear plate, one end of the pulley shaft is vertically connected to the lower end of the vertical side of the fixed frame, the lower end of the movable cover is hinged to the other end of the pulley shaft, and the upper end is connected to the outer end of the horizontal side of the fixed frame Clamping, the movable cover can rotate around the hinge.