CN110247336B - A pay-off device for power cables - Google Patents

Abstract

The invention discloses a power cable pay-off device, comprising a frame, the frame includes two beams, one end of the two beams is connected by a cutting table, both ends of the beam are provided with support legs, each beam The inner side of the cable tray is connected with a support frame, the support frame is provided with a hydraulic cylinder, the upper end of the hydraulic cylinder is provided with a lift rod, and a support shaft for lifting the cable reel is arranged between the two lift rods. The upper end of the cutting table is provided with a wire groove, the upper part of the wire groove is provided with a pressing plate, the pressing plate and the cutting table are connected by bolts, and a cutting knife is provided on one side of the cutting table One end of the cutter is rotatably connected to the cutting table, and a first wire pressing device and a second wire pressing device are arranged between the cutting table and the support frame. The first wire pressing device and the second wire pressing device are both connected with the machine The frame is connected, the first crimping device and the second crimping device are arranged opposite to each other, and the power cable passes through between the first crimping device and the second crimping device.

Description

A pay-off device for power cables

technical field

The invention relates to the technical field of power cable processing devices, in particular to a pay-off device for power cables.

Background technique

Power cables are cables used to transmit and distribute electrical energy. Power cables are often used in urban underground power grids, power station lead-out lines, internal power supply in industrial and mining enterprises, and underwater transmission lines across rivers and seas. In power lines, the proportion of cables is gradually increasing. Power cable is a cable product used to transmit and distribute high-power electrical energy in the main line of the power system, including 1-500KV and above various voltage levels and various insulation power cables.

During the construction of the power cable, a crane needs to be used to put the entire cable reel into the pay-off device, and then the cable is manually pulled to pay off. On the installation, it is time-consuming and material resources; the cable is still curled after being paid off due to the long-term winding of the cable on the cable reel, which makes it difficult for the operator to accurately control the length of the pay-off, resulting in a waste of cables.

SUMMARY OF THE INVENTION

The present invention is aimed at the above-mentioned deficiencies in the prior art, and provides a power cable pay-off device, which solves the cumbersome installation of the current cable tray by means of a hoisting machine, saves time and material resources, and reduces costs; Straightening is realized through the cooperation of the first wire pressing device and the second wire pressing device, which solves the problem of cable bending, makes the use more convenient, ensures the accuracy of cutting size, and avoids cost waste.

To achieve the above purpose, the invention provides the following technical solutions:

A power cable pay-off device includes a frame, the frame includes two beams, one end of the two beams is connected by a cutting table, both ends of the beam are provided with support legs, and the inner side of each beam is connected There is a support frame, the support frame is provided with a hydraulic cylinder, the upper end of the hydraulic cylinder is provided with a lift rod, and a support shaft for lifting the cable tray is arranged between the two lift rods, and the end of the support shaft is connected to the lift rod. The upper end surface of the cutting table is provided with a wire groove, and a pressure plate is arranged above the wire groove. One end of the knife is rotatably connected with the cutting table, a first wire pressing device and a second wire pressing device are arranged between the cutting table and the support frame, the first wire pressing device and the second wire pressing device are both connected with the frame, and the first wire pressing device and the second wire pressing device are connected to the frame. A wire crimping device is disposed opposite to the second wire crimping device, and the power cable passes between the first wire crimping device and the second wire crimping device.

Preferably, the lower end of the beam is provided with a fixing rod, and a cable limiting rod is provided between the two fixing rods.

Preferably, the support frame includes an upper limit rod, a side rod, and a lower limit rod, the upper limit rod and the lower limit rod are arranged in parallel, and both ends of the upper limit rod are connected to the lower limit rod through the side rods. The inner side of the rod is provided with a chute, the lower end of the hydraulic cylinder is connected with the lower limit rod, both ends of the lift rod are provided with a first sliding block and a second sliding block, and the first sliding block is matched with the sliding groove , the second sliding block is arranged on the outside of the chute and is attached to the side wall of the side bar.

Preferably, a support block is provided in the middle of the upper end of the lifting rod, a fixing hole is provided at the upper end of the support block, and bearings are provided at both ends of the support shaft, and the bearings are matched with the fixing holes.

Preferably, a first installation rod and a second installation rod that are parallel to each other are provided between the two beams, two ends of the first installation rod are connected to a beam through a first connecting rod, and the second installation rod is Both ends are connected with another beam through a second connecting rod, the first wire pressing device is connected with a second installation rod, and the second wire pressing device is installed on the first installation rod.

Preferably, the first thread pressing device includes a movable roller, a threaded rod and a fixing nut, a mounting hole is provided on the second mounting rod, the threaded rod is slidably matched with the mounting hole, and the movable roller is connected to the thread through the wheel shaft. One end of the rod is connected, the other end of the threaded rod is provided with a top plate, a spring and a fixing nut are sleeved on the threaded rod, one end of the spring is connected with the top plate, the other end of the spring is connected with the second installation rod, and the fixed nut is It is arranged between the movable roller and the second installation rod, one end of the threaded rod is connected with a pull rod, the pull rod is parallel to the threaded rod, the scale lines are evenly arranged on the pull rod, and one end of the pull rod is provided with a pull ring. The installation rod is provided with a sliding hole, and the sliding hole is slidably matched with the pull rod.

Preferably, the second wire pressing device includes a fixed roller and a support rod, the fixed roller is connected to the support rod through a wheel axle, the other end of the support rod is connected to the first installation rod, and the fixed roller is arranged close to the movable roller.

Preferably, a motor is provided below the fixed roller, the motor is connected to the axle of the fixed roller, a support plate is connected to the lower end of the first installation rod, and the motor is fixed on the upper end of the support plate.

Preferably, one end of the first installation rod close to the support frame is provided with a first vertical rod, one side of the first vertical rod is connected with an upper pressure wheel, and one end of the second installation rod close to the support frame is provided with a first vertical rod Two vertical rods, one side of the second vertical rod is connected with a lower pressing wheel, and the lower pressing wheel is arranged below the upper pressing wheel.

Preferably, a positioning ring for fixing the power cable is provided on one side of the upper pressing wheel, and a first support rod and a second support rod are arranged on the side wall of the positioning ring, and the first support rod is connected with the second support rod. Two vertical rods are connected, and the second support rod is connected with the first vertical rod

Compared with the prior art, the beneficial effects of the invention are:

1. The present invention does not require the aid of a lifting machine. The cable reel is rolled between the support frames with bare hands, the support shaft is passed through the middle of the cable reel, and the support shaft is lifted by a hydraulic cylinder. The installation is convenient and fast, and the solution is The current cable reel needs to be installed with the help of lifting machinery, which saves time and material resources, and reduces the cost; the cable is straightened through the cooperation of the first wire pressing device and the second wire pressing device, which solves the problem of cable bending. , it is more convenient to use, and it ensures the accuracy of cutting size and avoids waste of cost; the power cable can be cut directly through the cutter, which is simple and fast, and saves manpower, and solves the problem of difficult cutting with pliers.

2. In the present invention, a wire groove is arranged on the upper end surface of the cutting table, and a pressure plate is arranged above the wire groove. The power cable passes between the wire groove and the pressure plate, which can guide the power cable and prevent the cable from pulling the wire. It is bent again in the middle, and the pressure plate can be fixed by the power cable, which solves the problem that the cable cannot be cut due to bending during cutting. The pressure plate and the cutting table are connected by bolts, which is convenient to adjust the distance between the pressure plate and the cutting table. convenient.

3. In the present invention, a cable limit rod is arranged under the beam, and when the cable tray is rolled into the frame, the rolling position of the cable tray can be limited, so as to prevent the collision between the cable tray and other devices. , which protects the device.

4. In the present invention, a chute is provided on the inner side of the side rod, and both ends of the lifting rod are provided with a first sliding block and a second sliding block. The first sliding block cooperates with the sliding groove to guide and guide the sliding of the lifting rod. Limiting function, the second sliding block is arranged on the outside of the chute and is attached to the side wall of the side rod to ensure the reliability of the cooperation between the lifting rod and the chute, play a reinforcement role, and increase the safety of use; the upper limit rod at the upper end of the side rod can The lifting rod is limited to play a protective role, and the contact of the lower limit rod with the ground can play a supporting role and share the pressure on the rack.

5. The present invention is provided with a fixing hole at the upper end of the support block, and a bearing is provided at both ends of the support shaft. The fixing of the support shaft is realized by the cooperation of the bearing and the fixing hole, so as to ensure the firmness of the support during use and increase the safety of use. At the same time, the bearing can ensure the smooth rotation of the cable tray and reduce the wear between the support shaft and the support block.

6. The first thread pressing device of the present invention can ensure the consistency of the adjustment of the position of each movable roller through the scale on the pull rod. The pull rod is easy to operate during adjustment, making the operation more secure. The fixed thread limits the moving range of the movable roller, and the spring can ensure that the movable roller is always pressed on the power cable, which can not only ensure the smooth passage of the power cable but also protect the power cable. The bending angle of the cable is limited, and the fixed roller can be used to straighten the power cable.

7. The position of the fixed roller of the present invention is fixed, and it is only necessary to fine-tune the movable roller for power cables of different diameters, and the adjustment is simple and fast.

8. The present invention drives the rotation of the fixed roller by the motor, thereby accelerating the wire outlet speed of the power cable, saving manpower and improving work efficiency.

9. In the present invention, the upper and lower pressing wheels are arranged to limit the position of the power cable in the vertical direction, thereby further improving the straightening effect.

10. The positioning ring provided in the present invention can ensure that the power cable passes through the upper and lower pressing wheels, and prevents the power cable from being pushed from the upper and lower pressing wheels due to the unfixed position of the power cable on the cable reel during the pay-off process. It is separated from each other to ensure the reliability of use.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the structural representation of the rack;

Fig. 3 is the enlarged view of A place of Fig. 2;

Fig. 4 is the top view of the present invention;

Fig. 5 is the front view of the present invention;

6 is a schematic structural diagram of a support frame;

7 is a schematic structural diagram of a first wire pressing device;

Fig. 8 is an enlarged view at B of Fig. 4;

FIG. 9 is a schematic view of the structure of the support shaft.

In the figure: 1-frame; 101-support leg; 102-beam; 103-fixed rod; 104-cable limit rod; 105-first support rod; 106-cutting table; 107-pressing plate; 108-wire groove ; 109 - the first pole; 110 - the first installation rod; 111 - the first connecting rod; 112 - the second connecting rod; 113 - the second installation rod; 114 - the second strut; Support plate; 117-installation hole; 118-slide hole; 119-second vertical rod; 2-support frame; 201-upper limit rod; 202-side rod; 203-chute; 204-first slider; 205- The second slider; 206-lifting rod; 207-lower limit rod; 208-hydraulic cylinder; 209-support block; 210-fixing hole; Scale line; 304-fixed nut; 305-spring; 306-top plate; 307-pull ring; 308-threaded rod; 4-second crimping device; 401-fixed roller; 402-support rod; -upper pressing wheel; 7-lower pressing wheel; 8-support shaft; 801-bearing; 9-motor.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in FIG. 1-2, a power cable pay-off device includes a frame 1, the frame 1 includes two beams 102, one end of the two beams 102 is connected by a cutting table 106, and the two beams 102 are Each end is provided with support legs 101, and the inner side of each beam 102 is connected with a support frame 2. The support frame 2 is provided with a hydraulic cylinder 208. As shown in FIG. 6, the upper end of the hydraulic cylinder 208 is provided with a lifting rod 206, between the two lifting rods 206, there is a support shaft 8 for lifting the cable tray, and the end of the support shaft 8 and the lifting rod 206 are detachably connected, as shown in FIG. The upper end face is provided with a wire groove 108, and a pressure plate 107 is arranged above the wire groove 108. The pressure plate 107 and the cutting table 106 are connected by bolts, which is convenient to adjust the distance between the pressing plate 107 and the cutting table 106. The cable passes between the wire slot 108 and the pressure plate 107, which can guide the power cable and prevent the cable from being bent again in the pull wire, and the pressure plate 107 can fix the power cable, which solves the problem of cable cutting. Bending leads to the problem of inability to cut; one side of the cutting table 106 is provided with a cutting knife 5, one end of the cutting knife 5 is rotatably connected to the cutting table 106, and the blade surface of the cutting knife 5 is attached to one side of the pressing plate 107, In this way, the power cable can be prevented from being bent during cutting, and the cutting can be ensured smoothly. The two wire pressing devices 4 are both connected to the frame 1 , the first wire pressing device 3 and the second wire pressing device 4 are arranged opposite to each other, and the power cable passes between the first wire pressing device 3 and the second wire pressing device 4 .

As shown in FIG. 2 , the lower end of the beam 102 is provided with a fixing rod 103 , a cable limiting rod 104 is provided between the two fixing rods 103 , and the cable limiting rod 104 is arranged below the first wire crimping device 3 . On one side, when the cable reel is rolled into the rack 1, the rolling-in position of the cable reel can be limited, so as to prevent collision between the cable reel and other devices, and protect the equipment.

As shown in FIG. 6 , the support frame 2 includes an upper limit rod 201, a side rod 202, and a lower limit rod 207. The upper limit rod 201 and the lower limit rod 207 are arranged in parallel, and both ends of the upper limit rod 201 pass through the side The rod 202 is connected with the lower limit rod 207, the inner side of the side rod 202 is provided with a chute 203, the lower end of the hydraulic cylinder 208 is connected with the lower limit rod 207, and both ends of the lift rod 206 are provided with a first slide A block 204 and a second slider 205. The first slider 204 cooperates with the chute 203 to guide and limit the sliding of the lift rod 206. The second slider 205 is arranged outside the chute 203 and is attached to The side wall of the side rod 202 ensures the reliability of the lifting rod 206 and the chute 203, plays a reinforcing role, and increases the safety of use; the upper limit rod 201 at the upper end of the side rod 202 can limit the lifting rod 206 and play a protective role The lower limit rod 207 can play a supporting role in contact with the ground and share the pressure on the frame.

As shown in FIG. 6 , a support block 209 is provided in the middle of the upper end of the lifting rod 206 , and a fixing hole 210 is provided at the upper end of the support block 209 . As shown in FIG. 9 , both ends of the support shaft 8 are provided with Bearing 801, the bearing 801 is matched with the fixing hole 210, and the support shaft 8 is fixed by the cooperation of the bearing 801 and the fixing hole 210, which ensures the firmness of the support during use and increases the safety of use. At the same time, the bearing 801 can ensure the cable tray. The smoothness of rotation reduces the wear between the support shaft 8 and the support block 209 . .

As shown in FIG. 4 , a first installation rod 110 and a second installation rod 113 parallel to each other are provided between the two beams 102 . Both ends of the first installation rod 110 are connected to a beam 102 through the first connecting rod 111 The two ends of the second installation rod 113 are connected with another beam 102 through the second connecting rod 112 , the first wire pressing device 3 is connected with the second installation rod 113 , and the second wire pressing device 4 Mounted on the first mounting rod 110 .

As shown in FIGS. 7-8 , the first thread pressing device 3 includes a movable roller 301 , a threaded rod 308 and a fixing nut 304 , the second mounting rod 113 is provided with a mounting hole 117 , and the threaded rod 308 is connected to the mounting hole 117 . The hole 117 is slidably fitted, the movable roller 301 is connected to one end of the threaded rod 308 through the axle, the other end of the threaded rod 308 is provided with a top plate 306, and the threaded rod 308 is sleeved with a spring 305 and a fixing nut 304. The spring 305 One end of the spring 305 is connected to the top plate 306, the other end of the spring 305 is connected to the second installation rod 113, the fixing nut 304 is arranged between the movable roller 301 and the second installation rod 113, and one end of the threaded rod 308 is connected to the pull rod 302 , the pull rod 302 is parallel to the threaded rod 308, the pull rod 302 is evenly provided with a scale line 303, the measurement accuracy is 1mm, one end of the pull rod 302 is provided with a pull ring 307, the second installation rod 113 is provided with a sliding hole 118, The sliding hole 118 is slidably matched with the pull rod 302 . The first line pressing device 3 can ensure the consistency of the adjustment of the position of each movable roller 301 through the scale line 303 on the pull rod 302. The pull rod 302 is easy to operate during adjustment, making the operation more secure. The position on the rod 308 and the spring 305 are used to fix the power cable. The fixed thread 304 limits the moving range of the movable roller 301. The smooth passing of the power cable can also limit the bending angle of the power cable, and cooperate with the fixed roller 401 to realize the straightening of the power cable.

As shown in FIG. 4 , the second wire pressing device 4 includes a fixed roller 401 and a support rod 402 . The fixed roller 401 is connected to the support rod 402 through an axle, and the other end of the support rod 402 is connected to the first installation rod 110 For connection, the fixed roller 401 is arranged close to the movable roller 301, and the fixed roller 401 close to the cutting table 106 is aligned with the movable roller 301, so as to ensure that the outgoing power cable is no longer bent, and the remaining fixed rollers 401 and the movable rollers 301 are staggered. A long section of the power cable can be clamped and straightened with the least fixed rollers 401 and movable rollers 301. Both the fixed rollers 401 and the movable rollers 301 are covered with wear-resistant rubber pads, and the rubber pads are fixed with bolts. In this way, the rubber cushion can be prevented from slipping, and the surface damage to the power cable can be avoided at the same time; the position of the fixed roller 401 is fixed, and the movable roller 301 only needs to be fine-tuned for power cables of different diameters, and the adjustment is simple and fast.

As shown in FIG. 5 , a motor 9 is provided below the fixed roller 401 near the cutting table 106 , and the motor 9 is connected to the axle of the fixed roller 401 . 9 is fixed on the upper end of the support plate 116, and the rotation of the fixed roller 401 is driven by the motor 9 to speed up the wire outlet speed of the power cable, save manpower and improve work efficiency.

As shown in FIGS. 3-4 , one end of the first installation rod 110 close to the support frame 2 is provided with a first vertical rod 109 , and one side of the first vertical rod 109 is connected with the upper pressing wheel 6 , the second One end of the mounting rod 113 close to the support frame 2 is provided with a second vertical rod 119 , one side of the second vertical rod 119 is connected with a lower pressing wheel 7 , and the lower pressing wheel 7 is arranged below the upper pressing wheel 6 .

As shown in FIG. 3 , a positioning ring 115 for fixing the power cable is provided on one side of the upper pressing wheel 6 , and the midpoint of the line connecting the center of the upper pressing wheel 6 and the lower pressing wheel 7 is located on the central axis of the positioning ring 115 , so that the power cable can pass between the upper pressing wheel 6 and the lower pressing wheel 7 , the side wall of the positioning ring 115 is provided with a first strut 105 and a second strut 114 , the first strut 105 Connected to the second pole 119, the second pole 114 is connected to the first pole 109, the positioning ring 115 can ensure that the power cable passes through the upper and lower pressing wheels, preventing the power cable The position on the cable reel is not fixed, which will cause the power cable to come out from between the upper and lower pressure rollers, so as to ensure the reliability of use.

When in use, roll the cable reel between the two support frames 2, pass the support shaft 8 through the middle of the cable reel, the bearing 801 is located above the fixing hole 210, and the lifting rod 206 is lifted by the hydraulic cylinder 208, Make the fixing hole 210 fit with the bearing 801, continue to rise, make the cable reel off the ground, pass the end of the power cable through the positioning ring 115, and then pass between the upper pressure wheel 6 and the lower pressure wheel 7, according to The diameter of the power cable, adjust the distance between the movable roller 301 and the fixed roller 401, ensure that the cable can smoothly pass between the fixed roller 401 and the movable roller 301, and can slightly compress the power cable. Then the power cable is passed between the fixed roller 401 and the movable roller 301, and finally the power cable is passed between the pressure plate 107 and the wire groove 108. The staff pulls the power cable and drives the cable tray to rotate. Paying off, the first crimping device 3 and the second crimping device 4 are used to ensure that the power cable will not be bent when it is paid out. During the process, the motor can be started to assist the wire release, saving manpower. In the present invention, without the aid of a lifting machine, the cable drum is rolled between the support frames 2 by hand, the support shaft 8 is passed through the middle of the cable drum, and the hydraulic cylinder 208 is used to lift the support shaft 8, which is convenient and fast to install. , which solves the cumbersome installation of the current cable tray by means of lifting machinery, saves time and material resources, and reduces costs; The problem of cable bending is more convenient to use, and the accuracy of cutting size is ensured, avoiding cost waste; the power cable can be directly cut through the cutter 5, which is simple and fast, and saves manpower, which solves the problem of cutting with pliers. Difficult questions.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims (7)

1. The utility model provides a pay-off of electric power cable, includes the frame, its characterized in that: the rack comprises two cross beams, one ends of the two cross beams are connected through a cutting table, the lower ends of the cross beams are provided with fixing rods, a cable limiting rod is arranged between the two fixing rods, both ends of each cross beam are provided with supporting legs, the inner side of each cross beam is connected with a supporting frame, the supporting frame is provided with a hydraulic cylinder and comprises an upper limiting rod, a side rod and a lower limiting rod, the upper limiting rod and the lower limiting rod are arranged in parallel, both ends of the upper limiting rod are connected with the lower limiting rod through the side rod, the inner side of the side rod is provided with a sliding groove, the lower end of the hydraulic cylinder is connected with the lower limiting rod, the upper end of the hydraulic cylinder is provided with a lifting rod, both ends of the lifting rod are provided with a first sliding block and a second sliding block, the first sliding block is matched with the sliding groove, the second sliding block is arranged on the outer side of the sliding, the utility model discloses a wire cutting machine, including lifter, support shaft, bearing and fixed orifices, be equipped with the tray in the middle part of the upper end of lifter, the upper end of tray is equipped with the fixed orifices, the both ends of back shaft all are equipped with the bearing, bearing and fixed orifices cooperation, the up end of cutting the platform is equipped with the wire casing, the top of wire casing is equipped with the clamp plate, pass through bolted connection between clamp plate and the cutting platform, one side of cutting the platform is equipped with the cutter, the one end of cutter with cut the platform and rotate and be connected, cut and be equipped with first cord grip, second cord grip between platform and the support frame, first cord grip and second cord grip all are connected with the frame, first cord grip sets up with the second cord grip relatively, and the electric power cable passes between first cord grip.

2. A paying-off device for electric power cables as claimed in claim 1, characterized in that: the two cross beams are provided with a first mounting rod and a second mounting rod which are parallel to each other, the two ends of the first mounting rod are connected with one cross beam through a first connecting rod, the two ends of the second mounting rod are connected with the other cross beam through a second connecting rod, the first line pressing device is connected with the second mounting rod, and the second line pressing device is mounted on the first mounting rod.

3. A paying-off device for electric power cables as claimed in claim 2, characterized in that: the first line pressing device comprises a movable roller, a threaded rod and a fixing nut, a mounting hole is formed in the second mounting rod, the threaded rod is in sliding fit with the mounting hole, the movable roller is connected with one end of the threaded rod through a wheel shaft, a top plate is arranged at the other end of the threaded rod, a spring and a fixing nut are sleeved on the threaded rod, one end of the spring is connected with the top plate, the other end of the spring is connected with the second mounting rod, the fixing nut is arranged between the movable roller and the second mounting rod, a pull rod is connected to one end of the threaded rod, the pull rod is parallel to the threaded rod, scale marks are evenly arranged on the pull rod, a pull ring is arranged at one end of the pull rod, a sliding hole is formed in the second mounting rod.

4. A paying-off device for electric power cables as claimed in claim 3, characterized in that: the second line pressing device comprises a fixed roller and a supporting rod, the fixed roller is connected with the supporting rod through a wheel shaft, the other end of the supporting rod is connected with the first installation rod, and the fixed roller is arranged close to the movable roller.

5. The paying-off device for electric power cables as claimed in claim 4, wherein: the motor is arranged below the fixed roller and connected with a wheel shaft of the fixed roller, the lower end of the first mounting rod is connected with the supporting plate, and the motor is fixed at the upper end of the supporting plate.

6. A paying-off device for electric power cables as claimed in claim 5, characterized in that: one end that first installation pole is close to the support frame is equipped with first pole setting, one side of first pole setting even has last pinch roller, the one end that second installation pole is close to the support frame is equipped with the second pole setting, one side of second pole setting even has lower pinch roller, the below of last pinch roller is located to lower pinch roller.

7. A paying-off device for electric power cables as claimed in claim 6, characterized in that: go up the locating ring that one side of pinch roller was equipped with and is used for fixed electric power cable, be equipped with first vaulting pole, second vaulting pole on the lateral wall of locating ring, first vaulting pole is connected with the second pole setting, the second vaulting pole is connected with first pole setting.

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