Tensioning device for power cable installation

Abstract

The invention discloses a tensioning device for power cable installation, and relates to the technical field of power cables, the tensioning device comprises a tensioning mechanism, an auxiliary mechanism comprises a placement table, a water tank is installed in one placement groove, a safety valve is installed on the front surface of an inner threaded pipe, and a plurality of electric heating pipes are installed on one side of the water tank. According to the power cable oil stain removal device, by arranging an auxiliary mechanism, oil appearing on the surface of a power cable can be treated, that is, workers do not need to find special equipment for removing oil stain on the surface of the cable, the oil stain removal efficiency is improved, and the working efficiency is improved. According to the tensioning mechanism, oil on the surface of the cable can be treated in time, the installation progress of the cable is not affected, meanwhile, the workload of workers is reduced, the using effect of the tensioning mechanism is improved, and meanwhile the using efficiency of the tensioning mechanism is improved.

Description

Technical Field

[0001] The invention relates to the technical field of power cables, in particular to a tensioning device for installing a power cable. Background Art

[0002] Power cable is a cable used to transmit and distribute electrical energy. It is usually composed of conductors, insulation layers, sheaths and other parts. During the vertical laying of power cables, the gravity of the cable itself often produces a large downward pulling force during the laying process. At this time, if there is no tensioning device to assist with the installation of the power cable, the cable may slide down quickly due to gravity, which makes it difficult to control the laying speed and position of the power cable during installation, and may also cause cable damage or construction safety accidents. Therefore, a tensioning device must be used when installing the power cable.

[0003] In the existing technology, the existing tensioning device for power cable installation can ensure the speed and position of vertical laying of the cable and reduce the risk of cable damage or construction safety during actual use, but it does not have the function of removing oil from the cable surface, that is, the power cable may be stained with oil due to improper storage and transportation before installation or improper operation during installation, and the oil will affect the friction between the tensioning mechanism and the cable, making it difficult for the tensioning mechanism to accurately control the tension and speed of the cable. At this time, if the safe installation of the cable is to be ensured, the staff must also find special equipment to remove oil from the surface of the cable, which will not only affect the progress of the cable installation, but also increase the workload of the staff, which not only reduces the use effect of the tensioning mechanism, but also reduces the use efficiency of the tensioning mechanism.

[0004] Therefore, we propose a tensioning device for power cable installation to solve the problems raised in the above background technology. Summary of the invention

[0005] The object of the present invention is to provide a tensioning device for power cable installation, so as to solve the problem that the existing tensioning device for power cable installation does not have the function of removing oil from the cable surface, that is, the power cable may be stained with oil due to improper storage and transportation before installation or improper operation during installation, and the oil will affect the friction between the tensioning mechanism and the cable, resulting in the tensioning mechanism being difficult to accurately control the tension and speed of the cable. At this time, if the safe installation of the cable is to be ensured, the staff must also find equipment specifically for removing oil from the cable surface, which will not only affect the progress of the cable installation, but also increase the workload of the staff, reducing the use effect of the tensioning mechanism, but also reducing the use efficiency of the tensioning mechanism.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a tensioning device for power cable installation, comprising a tensioning mechanism, wherein an auxiliary mechanism is provided on the tensioning mechanism; The auxiliary mechanism comprises a placing table, the front surface of the placing table is provided with two placing grooves, a water tank is installed inside one of the placing grooves, an internal threaded pipe is fixedly penetrated through the front surface of the water tank near the top position, a safety valve is installed on the front surface of the internal threaded pipe, a plurality of mounting holes are opened on one side of the water tank near the bottom position, a plurality of electric heating pipes are installed on one side of the water tank, a connecting pipe is installed at the water inlet end of the water tank, a heat preservation hose and a steam spray gun are placed at the inner bottom of the other placing groove, a three-way pipe is installed at the air inlet end of the steam spray gun, a pressure sensor is installed at one of the air inlet ends of the three-way pipe, two limit blocks are arranged on one side of the placing table, the bottoms of the two limit blocks are both bonded with semicircular rings, the bottoms of the two limit blocks are both fixed with three connecting rods, the six connecting rods are divided into two groups, a U-shaped block is fixed between the bottoms of each of the connecting rods, two auxiliary wheels are installed at the bottoms of the two U-shaped blocks, and porous plates are installed at the notches of the two placing grooves.

[0007] Preferably, the bottom of the water tank contacts the bottom of the inner wall of one of the placement grooves, the interior of the internal threaded tube is connected to the interior of the water tank, the interior of each of the mounting holes is connected to the interior of the water tank, the heating end of each of the electric heating tubes is movably sleeved on the inside of each mounting hole, and the heating end of each electric heating tube extends to the interior of the water tank.

[0008] Preferably, the air outlet end of the connecting pipe is fixedly passed through the inner wall of one of the placement grooves, and the air outlet end of the connecting pipe extends to the interior of the other placement groove, the air inlet end of the thermal insulation hose is connected to the air outlet end of the connecting pipe, and the other air inlet end of the three-way pipe is connected to the air outlet end of the thermal insulation hose.

[0009] Preferably, the opposite sides of the two limit blocks are in contact with each other, and the two limit blocks are fixed to each other by screws, one of the limit blocks is fixed to one side of the placing table close to the side of the placing table, the opposite sides of the two semicircular rings are in contact with each other, the opposite sides of the two U-shaped blocks are in contact with each other, and the two semicircular rings are located between the outer surfaces of the six connecting rods.

[0010] Preferably, the tensioning mechanism includes a mounting frame, the bottom of the mounting frame and the top of the placing table are fixed, six cylindrical holes are provided on the front surface of the inner wall of the mounting frame and the rear surface of the inner wall of the mounting frame, two symmetrical cylindrical holes are each a group, and the interiors of each group of cylindrical holes are rotatably connected by a first rotating rod through a first bearing.

[0011] Preferably, the outer surface of each of the first rotating rods is fixedly sleeved with a first roller, and two symmetrical first rollers are a group, and two mounting rods are movably penetrated through the front surface of the inner wall of the mounting frame, and the two mounting rods are fixed to the mounting frame by nuts, and a tension sensor is installed on the front surface of the mounting frame.

[0012] Preferably, the detection end of the tension sensor movably penetrates the front surface of the mounting frame, the outer surface of the detection end of the tension sensor and the outer surfaces of the two mounting rods are rotatably connected to the second roller via a second bearing, and the grooves of the detection end of the tension sensor and the grooves of the two mounting rods are provided with retaining springs, and the front surface of each retaining spring is in contact with the surface of each second roller respectively.

[0013] Preferably, round rods are fixed to the front surfaces of the three first rotating rods, the outer surface of one of the round rods and the outer surface of the middle round rod are fixedly sleeved with a first gear, the two first gears are connected by a first chain transmission, and the outer surface of the middle round rod and the outer surface of another round rod are fixedly sleeved with a second gear.

[0014] Preferably, the two second gears are connected via a second chain transmission, a bracket is fixed to the front surface of the mounting frame, a motor is mounted on the front surface of the bracket, the output end of the motor is mounted to the front surface of another round rod, an electric push rod is mounted on the front surface of the mounting frame and the rear surface of the mounting frame, and sliding holes are provided on the front surface of the mounting frame and the rear surface of the mounting frame.

[0015] Preferably, a second rotating rod is arranged between the insides of the two sliding holes, the bottom ends of the telescopic ends of the two electric push rods are fixed to the outer surface of the second rotating rod, the outer surface of the second rotating rod is fixedly sleeved with a third roller, a controller is installed on the rear surface of the mounting frame, the plurality of electric heating tubes and pressure sensors are electrically connected to the controller, and the tension sensor, the two electric push rods and the motor are electrically connected to the controller.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can process the oil on the surface of the power cable by setting an auxiliary mechanism, that is, the staff does not need to find a special device for removing oil from the cable surface, so the oil on the cable surface can be processed in time, which will not affect the progress of cable installation and reduce the workload of the staff. It not only improves the use effect of the tensioning mechanism, but also improves the use efficiency of the tensioning mechanism. When the staff finds that there is oil on the surface of the cable and it is about to approach the auxiliary wheel, the controller and multiple electric heating tubes are first used to heat and evaporate the water in the water tank into water vapor, and then the connecting pipe, the insulation hose and the three-way pipe are used to transport the water vapor discharged from the water tank to the inside of the steam spray gun.

[0017] 2. The present invention then utilizes the pressure sensor, the steam pressure threshold value set in advance by the controller, the cooperation of multiple electric heating tubes and the controller to monitor the steam pressure inside the space composed of the water tank, the connecting pipe, the insulation hose, the three-way pipe and the steam spray gun, and can automatically adjust the steam pressure inside the space. Thereafter, the steam spray gun is used to spray steam on the surface of the cable with oil, that is, the impact force and heat brought by the high-temperature steam are used to remove the oil on the surface of the cable. When the oil on the surface of the cable is removed, the cooperation of the two semicircular rings can be used to scrape off the residual liquid on the surface of the cable, thereby ensuring the stability of the cable's later transmission.

[0018] 3. The present invention can adjust the tension during the vertical laying and installation of the cable by setting a tensioning mechanism. When the power cable needs to be laid vertically, the traction rope can be unwound by first utilizing the cooperation of the controller and the prepared traction equipment. Subsequently, the unwound traction rope can be guided to the bottom end of the laying position by utilizing the cooperation of each group of the first roller, three second rollers, the third roller, two limit blocks, two semicircular rings and two U-shaped blocks, so as to facilitate fixing the cable end and the traction rope end together.

[0019] 4. The present invention then utilizes the cooperation of the controller, the motor, the three round rods, the two first gears, the two second gears, the first chain, the second chain and the first rotating rod connected to each round rod to drive one of the first rollers in each group to rotate, and then utilizes the cooperation of the controller, the traction equipment, the tensioning mechanism, the two limit blocks, the two semicircular rings and the four auxiliary wheels to drive the cable to move from the bottom to the top to perform the transmission operation, and at the same time utilizes the cooperation of the controller, the tension threshold value set in advance by the controller, the tension sensor, the two electric push rods, the two sliding holes, the second rotating rod and the third roller to adjust the tension during cable transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of a tensioning device for power cable installation according to the present invention; Figure 2 A partial three-dimensional diagram of a tensioning mechanism of a tensioning device for power cable installation according to the present invention; Figure 3 It is a partial three-dimensional diagram of the auxiliary mechanism of a tensioning device for power cable installation of the present invention; Figure 4 It is a three-dimensional diagram of another part of the auxiliary mechanism of a tensioning device for power cable installation of the present invention; Figure 5 It is a three-dimensional diagram of another part of the tensioning mechanism of a tensioning device for power cable installation of the present invention; Figure 6 A top-down perspective view of a tensioning device for power cable installation according to the present invention; Figure 7 A bottom-up perspective view of a tensioning device for power cable installation according to the present invention; Figure 8 It is a schematic cross-sectional view of the auxiliary mechanism of a tensioning device for power cable installation according to the present invention; Fig. 9 A three-dimensional diagram of an installation rod of a tensioning device for power cable installation according to the present invention; Fig.10 The present invention is a schematic diagram of the three-dimensional structure of a water tank, an internally threaded pipe and a mounting hole of a tensioning device for power cable installation.

[0021] In the figure: 1, tensioning mechanism; 101, mounting frame; 102, cylindrical hole; 103, first rotating rod; 104, first roller; 105, mounting rod; 106, tension sensor; 107, second roller; 108, retaining spring; 109, round rod; 110, first gear; 111, second gear; 112, bracket; 113, motor; 114, electric push rod; 115, sliding hole; 116, second rotating rod; 117, third roller; 118, control device; 2, auxiliary mechanism; 201, placement table; 202, placement groove; 203, water tank; 204, internal threaded pipe; 205, safety valve; 206, installation hole; 207, electric heating pipe; 208, connecting pipe; 209, insulation hose; 210, steam spray gun; 211, three-way pipe; 212, pressure sensor; 213, limit block; 214, semicircular ring; 215, connecting rod; 216, U-shaped block; 217, auxiliary wheel; 218, porous plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figure 1-Figure 4 , Figure 6-Figure 8 and Fig.10 As shown, the present invention provides a technical solution: a tensioning device for power cable installation, comprising a tensioning mechanism 1, on which an auxiliary mechanism 2 is arranged; The auxiliary mechanism 2 includes a placement table 201, and two placement grooves 202 are provided on the front surface of the placement table 201. A water tank 203 is installed inside one of the placement grooves 202. An internal threaded pipe 204 is fixedly passed through the front surface of the water tank 203 near the top. A safety valve 205 is installed on the front surface of the internal threaded pipe 204. A plurality of mounting holes 206 are provided on one side of the water tank 203 near the bottom. A plurality of electric heating pipes 207 are installed on one side of the water tank 203. A connecting pipe 208 is installed at the water inlet end of the water tank 203. A heat preservation hose 209 and a steam spray gun 210 are placed at the inner bottom of the other placement groove 202. A three-way pipe 211 is installed at the air inlet end of the steam spray gun 210. A pressure sensor 212 is installed at one of the air inlet ends of the three-way pipe 211, two limit blocks 213 are arranged on one side of the placement table 201, and the bottoms of the two limit blocks 213 are bonded with semicircular rings 214, and three connecting rods 215 are fixed to the bottoms of the two limit blocks 213. The six connecting rods 215 are divided into two groups, and a U-shaped block 216 is fixed between the bottoms of each connecting rod 215. Two auxiliary wheels 217 are installed at the bottoms of the two U-shaped blocks 216. Perforated plates 218 are installed at the notches of the two placement grooves 202. The bottom of the water tank 203 contacts the bottom of the inner wall of one of the placement grooves 202, and the inside of the internal threaded tube 204 and the inside of the water tank 203 are in contact with each other. The interior of each mounting hole 206 is connected to the interior of the water tank 203, the heating end of each electric heating tube 207 is movably sleeved in the interior of each mounting hole 206, and the heating end of each electric heating tube 207 extends to the interior of the water tank 203, the air outlet end of the connecting pipe 208 is fixedly passed through the inner wall of one of the placement grooves 202, and the air outlet end of the connecting pipe 208 extends to the interior of the other placement groove 202, the air inlet end of the insulation hose 209 is connected to the air outlet end of the connecting pipe 208, the other air inlet end of the three-way pipe 211 is connected to the air outlet end of the insulation hose 209, the opposite sides of the two limit blocks 213 are in contact, and the two limit blocks 213 are connected. They are fixed by screws, one of the limit blocks 213 is fixed to one side of the placement table 201 near the side of the placement table 201, the opposite sides of the two semicircular rings 214 are in contact, the opposite sides of the two U-shaped blocks 216 are in contact, and the two semicircular rings 214 are both between the outer surfaces of the six connecting rods 215. The tensioning mechanism 1 includes a mounting frame 101, the bottom of the mounting frame 101 is fixed to the top of the placement table 201, the front surface of the mounting frame 101 is fixed with a bracket 112, the front surface of the bracket 112 is installed with a motor 113, the rear surface of the mounting frame 101 is installed with a controller 118, and multiple electric heating tubes 207 and pressure sensors 212 are electrically connected to the controller 118.

[0024] In this embodiment, when the staff finds that there is oil on the surface of the cable and it is about to approach the auxiliary wheel 217, the controller 118 is first used to pause the motor 113, and then one of the porous plates 218 is removed from the notch of the corresponding placement groove 202, and then the steam spray gun 210 is moved out from the inside of the corresponding placement groove 202. At this time, the moving steam spray gun 210 will drive the pressure sensor 212 and the air outlet end of the insulation hose 209 to leave the inside of the placement groove 202 with the cooperation of the three-way pipe 211. Then, the controller 118 is used to start all the electric heating tubes 207 and turn on the pressure sensor 212. At this time, each started electric heating tube 207 can heat the water in the water tank 203. When When the water in the water tank 203 is heated to a certain temperature, the water in the water tank 203 will continuously generate water vapor, and the water vapor generated will then enter the interior of the connecting pipe 208, then enter the interior of the heat preservation hose 209, then enter the interior of the three-way pipe 211, and then enter the interior of the steam spray gun 210. At the same time, the pressure sensor 212 will also constantly monitor the steam pressure inside the space composed of the water tank 203, the connecting pipe 208, the heat preservation hose 209, the three-way pipe 211 and the steam spray gun 210, and directly transmit the steam pressure data obtained each time to the interior of the controller 118 in the form of an electrical signal. When the controller 118 receives the steam pressure data transmitted by the pressure sensor 212, When the steam pressure data received by the controller 118 is lower than the steam pressure threshold value set in advance by the controller 118, the controller 118 will automatically increase the heating power of all the electric heating tubes 207. When the steam pressure data received by the controller 118 is lower than the steam pressure threshold value set in advance by the controller 118, the controller 118 will automatically increase the heating power of all the electric heating tubes 207. When it is necessary to remove the oil from the cable surface with oil, the outlet of the steam spray gun 210 is first aimed at the cable surface. Where degreasing is required, the switch on the steam spray gun 210 is directly pressed. At this time, the steam inside the steam spray gun 210 will be directly sprayed out and sprayed on the surface of the cable with oil. When the oil contacts the high-temperature steam, the impact force and heat brought by the high-temperature steam will remove the oil on the surface of the cable. When the cable surface has been sprayed with high-temperature steam for a period of time (depending on the situation), the steam spray gun 210 is directly stopped from spraying steam to the cable, and then the tensioning mechanism 1 is used to cooperate to allow the cable to continue to move. When the degreasing position of the cable reaches the position of the semicircular ring 214 and continues to move, the residual liquid on the surface of the cable can be scraped off under the action of the two semicircular rings 214, thereby ensuring the stability of the cable in later transmission.

[0025] Embodiment 2: According to Figure 1-Figure 9As shown, the tensioning mechanism 1 includes a mounting frame 101, and six cylindrical holes 102 are provided on the inner wall front surface and the inner wall rear surface of the mounting frame 101, and two symmetrical cylindrical holes 102 are each a group, and the insides of each group of cylindrical holes 102 are rotatably connected to a first rotating rod 103 through a first bearing, and the outer surface of each first rotating rod 103 is fixedly sleeved with a first roller 104, and the two symmetrical first rollers 104 are each a group, and two mounting rods 105 are movably penetrated through the inner wall front surface of the mounting frame 101, and the two mounting rods 105 are fixed to the mounting frame 101 through nuts, and a tension sensor 106 is installed on the front surface of the mounting frame 101, and the tension sensor The detection end of the tension sensor 106 movably penetrates the front surface of the mounting frame 101, and the outer surface of the detection end of the tension sensor 106 and the outer surface of the two mounting rods 105 are rotatably connected to the second roller 107 through the second bearing. The groove of the detection end of the tension sensor 106 and the groove of the two mounting rods 105 are provided with a retaining spring 108, and the front surface of each retaining spring 108 is in contact with the surface of each second roller 107 respectively. The front surfaces of the three first rotating rods 103 are fixed with round rods 109, and the outer surface of one of the round rods 109 and the outer surface of the middle round rod 109 are fixedly sleeved with a first gear 110, and the two first gears 110 are connected by a first chain transmission. The outer surface of one round rod 109 and the outer surface of the other round rod 109 are both fixedly sleeved with a second gear 111, and the two second gears 111 are connected by a second chain transmission. A bracket 112 is fixed to the front surface of the mounting frame 101, and a motor 113 is installed on the front surface of the bracket 112. The output end of the motor 113 is installed with the front surface of the other round rod 109. An electric push rod 114 is installed on the front surface of the mounting frame 101 and the rear surface of the mounting frame 101. A sliding hole 115 is opened on the front surface of the mounting frame 101 and the rear surface of the mounting frame 101. A second rotating rod 116 is arranged between the insides of the two sliding holes 115. The bottom ends of the telescopic ends of the two electric push rods 114 are It is fixed to the outer surface of the second rotating rod 116, and the outer surface of the second rotating rod 116 is fixedly sleeved with a third roller 117. A controller 118 is installed on the rear surface of the mounting frame 101. The tension sensor 106, the two electric push rods 114 and the motor 113 are all electrically connected to the controller 118. Two limit blocks 213 are arranged on one side of the placement table 201. The bottoms of the two limit blocks 213 are both bonded with semicircular rings 214. Three connecting rods 215 are fixed to the bottoms of the two limit blocks 213. The six connecting rods 215 are divided into two groups. A U-shaped block 216 is fixed between the bottoms of each connecting rod 215. Two auxiliary wheels 217 are installed at the bottoms of the two U-shaped blocks 216.

[0026] In this embodiment, when it is necessary to perform vertical laying operation on the power cable, the preparatory work before installation is first completed, and then the traction rope on the traction equipment is unwound by using the cooperation of the controller 118 and the prepared traction equipment, and then the traction rope is first passed through each group of first rollers 104 in sequence, and then through the three second rollers 107 in sequence, and then through the third roller 117 to enter between the semicircular grooves of the two limit blocks 213, and then through the two semicircular rings 214, and then through the two U-shaped blocks 216, and then move down to the bottom of the laying position, and finally fix the end of the traction rope to the cable end on the cable rack. When the traction rope end and the cable end are fixed together, the controller 118 and the traction equipment are directly used. The unwound traction rope is wound back with the cooperation of the four auxiliary wheels 217, and the traction rope that is continuously wound back drives the cable to move from bottom to top. When the surface of the end of the cable contacts the wheel surface of each auxiliary wheel 217, the cable will stably enter between the two U-shaped blocks 216 with the cooperation of the four auxiliary wheels 217, and then the cable entering between the two U-shaped blocks 216 will enter between the two semicircular rings 214. When the cable enters between the two semicircular rings 214, the dust or attached impurities on the surface of the cable can be removed with the cooperation of the two semicircular rings 214, and then the cable with the treated surface will enter between the semicircular grooves of the two limit blocks 213, and then the cable between the semicircular grooves of the two limit blocks 213 will be placed on the third roller 117. , and then the cable that will continue to move passes through the three second rollers 107 in sequence. When the cable is about to reach the position of the first roller 104, the controller 118 is used to start the motor 113 and turn on the tension sensor 106, and the speed of its output end is set. At this time, the started motor 113 will drive the round rod 109 connected thereto to rotate, and the rotating round rod 109 will drive each group of one of the first rollers 104 to rotate under the cooperation of the middle round rod 109, one of the round rods 109, two first gears 110, two second gears 111, the first chain, the second chain and the first rotating rod 103 connected to each round rod 109. When the cable passes between each group of first rollers 104 in sequence, each rotating first roller 104 will be With the cooperation of another first roller 104 corresponding to the group, the stability of the cable during traction can be improved. At the same time, the tension sensor 106 will also monitor the tension of the cable during transmission at all times, and transmit the tension data obtained by each monitoring to the controller 118 in the form of an electrical signal. After receiving the pressure data, the controller 118 will directly compare the received pressure data with the pressure threshold value set in advance by the controller 118. When the pressure data received by the controller 118 is lower than the pressure threshold value set in advance by the controller 118, the controller 118 will simultaneously start the two electric push rods 114, so that the two started electric push rods 114 can drive the third roller 117 to move upward with the cooperation of the two sliding holes 115 and the second rotating rod 116.That is, the third roller 117 is used to move to adjust the tension of the cable during transmission, and vice versa, the third roller 117 is used to move downward to adjust the tension of the cable during transmission. When the traction rope is completely reeled back onto the traction device, the controller 118 is used to stop the traction device to reel in the traction rope, and the motor 113 is paused at the same time. Then, the end of the traction rope is disconnected from the end of the cable, and then the controller 118 is used to start the motor 113 to continue to move the cable.

[0027] The effect and working principle of the whole mechanism are as follows: when it is necessary to lay the power cable vertically, the cable rack equipped with the cable needs to be placed at the bottom of the laying position first, and then the tensioning device and the traction device are moved to the high place of the laying position, and then the tensioning device and the traction device are fixed to the ground with expansion bolts, and the two limit blocks 213 on the tensioning device are moved to the entrance of the shaft, and then the controller 118 is connected to the external power supply through the power cord, and the traction device is also connected to the controller 118 (the controller 118 is mainly connected to the driving motor on the traction device), and then the controller 118 is turned on, and the tension threshold, steam pressure threshold and basic usage procedures are set. When everything is ready, At this time, the controller 118 and the traction device are first used to cooperate to unwind the traction rope on the traction device, and then the traction rope is first passed through each group of first rollers 104 in sequence, and then through the three second rollers 107 in sequence, and then through the third roller 117 to enter between the semicircular grooves of the two limit blocks 213, and then through between the two semicircular rings 214, and then through between the two U-shaped blocks 216, and then move down to the bottom of the laying position, and finally fix the end of the traction rope to the cable end on the cable rack. When the end of the traction rope and the cable end are fixed together, the controller 118 and the traction device are directly used to rewind the unwound traction rope. At this time, the traction rope that is continuously rewound will drive the cable to move from bottom to top. When the surface of the end of the cable contacts the wheel surface of each auxiliary wheel 217, the cable will stably enter between the two U-shaped blocks 216 with the cooperation of the four auxiliary wheels 217, and then the cable entering between the two U-shaped blocks 216 will enter between the two semicircular rings 214. When the cable enters between the two semicircular rings 214, the dust or attached impurities on the surface of the cable can be removed with the cooperation of the two semicircular rings 214. Then the cable with the treated surface will enter between the semicircular grooves of the two limit blocks 213, and then the cable between the semicircular grooves of the two limit blocks 213 will be placed on the third roller 117. Then the cable that will continue to move will pass through the three second rollers 107 in sequence. When the cable is about to reach the first roller 104, position, the controller 118 is used to start the motor 113 and turn on the tension sensor 106, and the speed of the output end thereof is set. The started motor 113 will drive the round rod 109 connected thereto to rotate, and the rotating round rod 109 will drive one of the first rollers 104 in each group to rotate under the cooperation of the middle round rod 109, one of the round rods 109, two first gears 110, two second gears 111, the first chain, the second chain and the first rotating rod 103 connected to each round rod 109. When the cable passes through each group of first rollers 104 in turn, each rotating first roller 104 will cooperate with another first roller 104 in the corresponding group to improve the stability of the cable during traction. At the same time,The tension sensor 106 will also monitor the tension of the cable during transmission at all times, and transmit the tension data obtained each time to the controller 118 in the form of an electrical signal. After receiving the pressure data, the controller 118 will directly compare the received pressure data with the pressure threshold value set in advance by the controller 118. When the pressure data received by the controller 118 is lower than the pressure threshold value set in advance by the controller 118, the controller 118 will simultaneously start the two electric push rods 114, so that the two started electric push rods 114, with the cooperation of the two sliding holes 115 and the second rotating rod 116, drive the third roller 117 to move upward, that is, use the movement of the third roller 117 to adjust the tension of the cable during transmission, and vice versa. The cable is moved to adjust the tension during cable transmission. When the traction rope is completely reeled back onto the traction device, the controller 118 is used to stop the traction device to reel in the traction rope, and the motor 113 is paused at the same time. Then the end of the traction rope is disconnected from the end of the cable, and then the motor 113 is started by the controller 118 to continue moving the cable. When the staff finds that there is oil on the surface of the cable and it is about to approach the auxiliary wheel 217, the controller 118 is used to pause the motor 113, and then one of the porous plates 218 is removed from the notch of the corresponding placement slot 202, and then the steam spray gun 210 is moved out of the corresponding placement slot 202. At this time, the moving steam spray gun 210 will drive the pressure sensor 212 and The air outlet end of the heat preservation hose 209 leaves the interior of the placement tank 202, and then the controller 118 is used to start all the electric heating tubes 207 and turn on the pressure sensor 212. At this time, each started electric heating tube 207 can heat the water in the water tank 203. When the water in the water tank 203 is heated to a certain temperature, the water in the water tank 203 will continuously generate water vapor, and then the generated water vapor will enter the interior of the connecting pipe 208, and then enter the interior of the heat preservation hose 209, and then enter the interior of the three-way pipe 211, and then enter the interior of the steam spray gun 210. At the same time, the pressure sensor 212 will also monitor the pressure generated by the water tank 203, the connecting pipe 208, the heat preservation hose 209, the three-way pipe 211 and the steam spray gun at all times. 210, and directly transmits the steam pressure data obtained each time to the inside of the controller 118 in the form of an electrical signal. When the controller 118 receives the steam pressure data transmitted by the pressure sensor 212, the controller 118 will compare the received steam pressure data with the steam pressure threshold value set in advance by the controller 118. When the steam pressure data received by the controller 118 is higher than the steam pressure threshold value set in advance by the controller 118, the controller 118 will automatically reduce the heating power of all the electric heating pipes 207 and cooperate with the safety valve 205 to perform pressure relief operation. When the steam pressure data received by the controller 118 is lower than the steam pressure threshold value set in advance by the controller 118,At this time, the controller 118 will automatically increase the heating power of all the electric heating tubes 207. When it is necessary to remove the oil from the cable surface with oil, first aim the air outlet of the steam spray gun 210 at the place on the cable surface where oil needs to be removed, and then directly press the switch on the steam spray gun 210. At this time, the steam inside the steam spray gun 210 will be directly sprayed out and sprayed on the cable surface with oil. When the oil contacts the high-temperature steam, the impact force and heat brought by the high-temperature steam will remove the oil on the cable surface. When the cable surface is sprayed with high-temperature steam for a period of time (depending on the situation), the steam spray gun 210 is directly stopped from spraying the cable. Steam is sprayed, and then the controller 118 is used to start the motor 113. The motor 113 started at this time will repeat the above steps again to allow the cable to continue to move. When the oil removal position of the cable reaches the position of the semicircular ring 214 and continues to move, the residual liquid on the surface of the cable can be scraped off under the action of the two semicircular rings 214, that is, the stability of the cable transmission in the later stage is ensured. When the cable completes the transmission operation, the cable is directly fixed on the shaft rack with a clamp. When the cable is fixed on the shaft rack, the tensioning device is directly separated from the cable, and then the tensioning device and the traction equipment are separated from the ground.

[0028] Among them, the screw, the first bearing, the second bearing, the first chain and the second chain are commonly used parts in reality.

[0029] Among them, the first roller 104, the second roller 107 and the third roller 117 are all rollers dedicated to cable transmission.

[0030] Among them, according to Figure 1 As shown, from right to left, the three round rods 109 are respectively one of the round rods 109 , a middle round rod 109 , and another round rod 109 .

[0031] Among them, the tension sensor 106, the motor 113, the controller 118 (PLC controller), the water tank 203, the safety valve 205, the electric heating tube 207, the steam spray gun 210, the electric push rod 114 and the pressure sensor 212 are all existing technologies, and their working principles are all public technologies. Their models can be selected according to actual conditions and no further explanation will be given here.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tensioning device for power cable installation, characterized in that: It comprises a tensioning mechanism (1), wherein the tensioning mechanism (1) is provided with an auxiliary mechanism (2); The auxiliary mechanism (2) comprises a placement table (201), the front surface of the placement table (201) is provided with two placement grooves (202), a water tank (203) is installed inside one of the placement grooves (202), an internal threaded pipe (204) is fixedly passed through the front surface of the water tank (203) near the top, a safety valve (205) is installed on the front surface of the internal threaded pipe (204), a plurality of installation holes (206) are opened on one side of the water tank (203) near the bottom, a plurality of electric heating pipes (207) are installed on one side of the water tank (203), a connecting pipe (208) is installed at the water inlet end of the water tank (203), and a heat preservation hose (209) and a steam spray gun (205) are placed at the bottom of the other placement groove (202). 210), a three-way pipe (211) is installed at the air inlet end of the steam spray gun (210), a pressure sensor (212) is installed at one of the air inlet ends of the three-way pipe (211), two limit blocks (213) are arranged on one side of the placement table (201), the bottoms of the two limit blocks (213) are both bonded and connected with a semicircular ring (214), the bottoms of the two limit blocks (213) are both fixed with three connecting rods (215), the six connecting rods (215) are divided into two groups, a U-shaped block (216) is fixed between the bottoms of each of the connecting rods (215), the bottoms of the two U-shaped blocks (216) are both installed with two auxiliary wheels (217), and the notches of the two placement slots (202) are both installed with porous plates (218).

2. The tensioning device for power cable installation according to claim 1, characterized in that: The bottom of the water tank (203) contacts the bottom of the inner wall of one of the placement grooves (202); the interior of the internally threaded tube (204) is connected to the interior of the water tank (203); the interior of each of the mounting holes (206) is connected to the interior of the water tank (203); the heating end of each of the electric heating tubes (207) is movably sleeved inside each of the mounting holes (206), and the heating end of each of the electric heating tubes (207) extends to the interior of the water tank (203).

3. The tensioning device for power cable installation according to claim 1, characterized in that: The air outlet end of the connecting pipe (208) is fixedly inserted through the inner wall of one of the placement grooves (202), and the air outlet end of the connecting pipe (208) extends to the inside of the other placement groove (202), the air inlet end of the thermal insulation hose (209) is connected to the air outlet end of the connecting pipe (208), and the other air inlet end of the three-way pipe (211) is connected to the air outlet end of the thermal insulation hose (209).

4. The tensioning device for power cable installation according to claim 1, characterized in that: The opposite sides of the two limit blocks (213) are in contact with each other, and the two limit blocks (213) are fixed to each other by screws, a side of one of the limit blocks (213) close to the placement table (201) is fixed to one side of the placement table (201), the opposite sides of the two semicircular rings (214) are in contact with each other, the opposite sides of the two U-shaped blocks (216) are in contact with each other, and the two semicircular rings (214) are located between the outer surfaces of the six connecting rods (215).

5. The tensioning device for power cable installation according to claim 1, characterized in that: The tensioning mechanism (1) comprises a mounting frame (101), the bottom of the mounting frame (101) and the top of the placement platform (201) are fixed to each other, the inner wall front surface of the mounting frame (101) and the inner wall rear surface of the mounting frame (101) are both provided with six cylindrical holes (102), two symmetrical cylindrical holes (102) are each a group, and the insides of each group of cylindrical holes (102) are rotatably connected to a first rotating rod (103) via a first bearing.

6. The tensioning device for power cable installation according to claim 5, characterized in that: The outer surface of each first rotating rod (103) is fixedly sleeved with a first roller (104), and two symmetrical first rollers (104) form a group. Two mounting rods (105) are movably penetrated through the front surface of the inner wall of the mounting frame (101), and the two mounting rods (105) are fixed to the mounting frame (101) by nuts. A tension sensor (106) is installed on the front surface of the mounting frame (101).

7. The tensioning device for power cable installation according to claim 6, characterized in that: The detection end of the tension sensor (106) movably penetrates the front surface of the mounting frame (101); the outer surface of the detection end of the tension sensor (106) and the outer surfaces of the two mounting rods (105) are rotatably connected to the second roller (107) via a second bearing; a retaining spring (108) is provided at the groove of the detection end of the tension sensor (106) and the groove of the two mounting rods (105); and the front surface of each retaining spring (108) contacts the surface of each second roller (107) respectively.

8. The tensioning device for power cable installation according to claim 5, characterized in that: The front surfaces of the three first rotating rods (103) are all fixed with round rods (109), the outer surface of one of the round rods (109) and the outer surface of the middle round rod (109) are both fixedly sleeved with a first gear (110), the two first gears (110) are connected via a first chain transmission, and the outer surface of the middle round rod (109) and the outer surface of another round rod (109) are both fixedly sleeved with a second gear (111).

9. The tensioning device for power cable installation according to claim 8, characterized in that: The two second gears (111) are connected via a second chain transmission; a bracket (112) is fixed to the front surface of the mounting frame (101); a motor (113) is mounted on the front surface of the bracket (112); an output end of the motor (113) is mounted to the front surface of another round rod (109); an electric push rod (114) is mounted on the front surface of the mounting frame (101) and the rear surface of the mounting frame (101); and a sliding hole (115) is provided on the front surface of the mounting frame (101) and the rear surface of the mounting frame (101).

10. The tensioning device for power cable installation according to claim 9, characterized in that: A second rotating rod (116) is arranged between the insides of the two sliding holes (115); the bottom ends of the telescopic ends of the two electric push rods (114) are fixed to the outer surface of the second rotating rod (116); a third roller (117) is fixedly sleeved on the outer surface of the second rotating rod (116); a controller (118) is installed on the rear surface of the mounting frame (101); the plurality of electric heating tubes (207) and the pressure sensor (212) are electrically connected to the controller (118); and the tension sensor (106), the two electric push rods (114) and the motor (113) are electrically connected to the controller (118).

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