A cable pay-off machine for secondary cable laying in a substation

Abstract

The present invention discloses a cable pay-off machine for secondary cable laying in a substation. The present invention relates to the technical field of cable laying, and includes a forklift, a motor, and a mobile trolley. A rotating shaft at the output end of the motor is fixedly connected with a support gear, and a gear ring is meshed on the surface of the support gear. A wire reel is fixedly connected to one side of the gear ring surface away from the support gear. For this cable pay-off machine for secondary cable laying in a substation, after the dragging and traction mechanism quickly clamps the end face of the cable, the dragging and traction mechanism guides the cable to a determined position on the cable rack. The electric turntable drives the extension component to rotate a certain angle, so that the wire-releasing direction of the extension component is directly opposite to the cable rack. The buffer component stores the unrolled cable. This part of the cable is dragged by the mobile trolley and passes through the guiding component and the extension component to the cable rack, solving the problem of how to use machinery to replace manual dragging in the cable trench to place the cable on the cable rack.

Description

Technical Field

[0001] The invention relates to the technical field of cable laying, in particular to a cable pay-off machine for laying substation secondary cables. Background Art

[0002] Due to the long operation life of conventional substations, a large number of operating or retired cables have been piled up in the cable trench, resulting in very narrow remaining space in the cable trench. When implementing technical transformation, expansion or unmanned transformation projects, it is necessary to lay cables or remove waste cables. In the past, it was completely dependent on maintenance personnel or hired migrant workers to use manual methods to complete the laying and removal of cables in the cable trench. The cost of manual laying is high, affects the construction period, is easy to cause injuries to people, and there is a risk of electric shock. The secondary cable laying requires accurate grasp of the cable direction, length, position and other parameters, which requires high skills of the operator, otherwise it may affect the laying quality and construction progress. The Chinese patent announcement number is: CN112054437A, which discloses "A secondary cable laying device". The patent adopts a modular design, mainly including a mechanical system module, a control system module, a sensing system module and a power supply system module. The mechanical system module includes a walking mechanism, a yaw mechanism and a cable clamping mechanism, and is driven by a servo motor; the walking mechanism can control the forward movement and turning of the entire mechanical system module; the yaw mechanism realizes the auxiliary obstacle avoidance function; the cable is clamped and fixed, a cable clamping mechanism is designed at the tail, a tension sensor assembly is installed, and a drag force threshold is set. Once the threshold is exceeded, the device stops moving and alarms to avoid the optical cable from being broken or damaged when the tension is too large.

[0003] The existing cable laying machine for laying secondary cables of substations has the problem of how to avoid interference with other cables on the cable rack during laying, and how to use machinery to replace manual dragging to place the cables on the cable rack in the cable trench due to structural design defects. Summary of the invention

[0004] The present invention provides a cable pay-off machine for laying substation secondary cables, which solves the problems mentioned in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A cable pay-off machine for laying substation secondary cables, comprising a forklift, a motor and a mobile trolley, wherein the rotating shaft at the output end of the motor is fixedly connected to a supporting gear, a gear ring is meshed on the surface of the supporting gear, a winding wheel is fixedly connected on the side of the gear ring surface away from the supporting gear, and further comprising:

[0006] Wire limiting mechanism, the bottom of the wire limiting mechanism is placed on the top of the output end of the forklift, the position of the surface of the wire limiting mechanism near the edge is fixedly connected to the bottom of the motor, and the wire limiting mechanism is used for the temporary storage of the uncoiling cable and the guidance of the cable to a determined position above the cable rack;

[0007] Drag and traction mechanism, the bottom of the drag and traction mechanism is fixedly installed on the top of the mobile trolley, and the drag and traction mechanism is used for the rapid pressing of the end face of the cable and the traction and dragging of the cable after uncoiling;

[0008] Among them, the wire limiting mechanism includes a bottom plate, a buffer component is fixedly connected to the top of the bottom plate, a lead screw slide is fixedly connected to the top of the bottom plate, the output end of the lead screw slide is fixedly connected to a support platform, an electric turntable is fixedly connected to the top of the support platform, a hydraulic cylinder is fixedly connected to the output end of the electric turntable, an extension component is fixedly connected to the output end of the hydraulic cylinder, and a guiding component is rotatably connected to the top of the support platform.

[0009] Preferably, the bottom of the bottom plate is placed on the top of the output end of the forklift, the bottom of the motor is fixedly installed at a position near the edge of the top of the bottom plate, the buffer component is located directly below the wire reel, the forklift transports the wire reel to the entrance of the cable trench, the mobile trolley enters the interior of the cable trench, as the mobile trolley moves, the drag and traction mechanism drags the cable, the oppositely arranged support gears support and limit the gear ring, when the motor drives the support gears to rotate, the gear ring drives the wire reel to rotate, replacing manual pulling of the cable to make the wire reel unwind, and this method can control the unwinding length and time of the cable.

[0010] Preferably, the buffer component includes a first housing, the bottom of the first housing is fixedly installed on the top of the bottom plate, and a rotating roller is rotatably connected to a position above the surface of the first housing through a bearing.

[0011] Preferably, the buffer component further includes a second housing, the surface of the second housing is connected to the position below the surface of the first housing through bolts, and an arc-shaped plate is fixedly connected to the top of the second housing.

[0012] Preferably, the extension component includes an inner hole disc, the bottom of the inner hole disc is fixedly installed at the output end of the hydraulic cylinder, a connecting rod is rotatably connected to a position near the edge of the surface of the inner hole disc, and a cylinder is fixedly connected to a position near the connecting rod on the surface of the inner hole disc. The motor drives the support gears to rotate, the cable unwinds as the wire reel rotates, the unwound cable is temporarily stored between the first housing and the second housing, the first housing and the second housing are independently arranged to facilitate disassembly and maintenance, the arc-shaped plate is arranged near the cable unwinding point, and the arc-shaped plate guides the cable into the interior of the second housing to prevent the cable from being squeezed, piled up and wound.

[0013] Preferably, there are two connecting rods. A rotating pin is fixedly connected to the output end of the cylinder. The bottom of the rotating pin is rotatably installed on the top of the connecting rod. One end of the connecting rod away from the inner hole disk is fixedly connected with a C-shaped frame, and a roller is rotatably connected to the inner side surface of the C-shaped frame.

[0014] Preferably, the guiding assembly includes a ball hinge. The surface of the ball hinge is rotatably installed above the surface of the support table. A guiding disk is fixedly connected to the outer surface of the ball hinge. A plurality of rotating columns support and limit the cable. The bottom of the guiding disk is installed on the top of the support table through the ball hinge. The guiding disk is arranged between the second housing and the inner hole disk. The cable passes through the guiding disk and the inner hole disk and is in close contact with the surface of the roller. When the cylinder drives the rotating pin to approach, the angle between the connecting rods composed of the double rods decreases, and the oppositely arranged rollers support and limit the cable.

[0015] Preferably, the guiding assembly further includes a first spring. The end face of the first spring is fixedly installed on the inner side surface of the guiding disk. The other end of the first spring is fixedly connected with a plunger body, and a rotating column is rotatably connected to the surface of the plunger body.

[0016] Preferably, the dragging and traction mechanism includes a screw lifter. The bottom of the screw lifter is fixedly installed on the top of the mobile trolley, and the output end of the screw lifter is fixedly connected with an electric cylinder.

[0017] Preferably, the dragging and traction mechanism further includes a rectangular plate. The middle position of the surface of the rectangular plate is fixedly installed on the output end of the electric cylinder. A wire threading pipe is fixedly connected to one side of the rectangular plate away from the rectangular plate. A pressing and fixing assembly is fixedly connected to the middle position of the surface of the rectangular plate. A plurality of cables are erected on the cable rack. Before the cables are erected by this device, the reel drives a certain length of cable to unwind and be stored in the internal of the buffer assembly. The end face of the cable passes through the guiding assembly and is guided by the guiding assembly to the extending assembly. The cable passes through the wire threading pipe and is clamped by the pressing and fixing assembly. The screw slide table drives the support table to approach the cable rack, and the electric rotary table adjusts the angle between the extending assembly and the cable rack.

[0018] Preferably, the pressing and fixing assembly includes slide rods. The surfaces of the slide rods are slidably installed at the middle position of the surface of the wire threading pipe. The number of the slide rods is two, and pressing plates are fixedly connected to the end faces of the two slide rods.

[0019] Preferably, the pressing and fixing assembly further includes a magnetic plate and an electromagnet. The surfaces of the magnetic plate and the electromagnet are respectively fixedly installed at the end faces of two sliding rods. Second springs are fixedly connected to the surfaces of the magnetic plate and the electromagnet. The connecting rod is formed by hinging two rods. The height of the mechanism composed of the air cylinder, the rotating pin and the connecting rod is small. The air cylinder makes the connecting rod rotate a certain angle relative to the rotating pin. The oppositely arranged rollers limit and guide the cable. The inner hole disk rotates towards the cable rack, and the screw slide table drives the connecting rod to extend above the cable rack.

[0020] The present invention provides a cable pay-off machine for secondary cable laying in a substation. It has the following beneficial effects:

[0021] 1. For the cable pay-off machine for secondary cable laying in a substation, after the dragging and traction mechanism quickly clamps the cable end face, the dragging and traction mechanism guides the cable to a determined position on the cable rack. The electric turntable drives the extension assembly to rotate a certain angle, so that the cable laying direction of the extension assembly is directly opposite to the cable rack. The buffer assembly retains the unrolled cable. This part of the cable is dragged by the moving trolley and passes through the guiding assembly and the extension assembly to the cable rack, solving the problem of how to use machinery to replace manual dragging in the cable trench to place the cable on the cable rack.

[0022] 2. For the cable pay-off machine for secondary cable laying in a substation, the cable slides frictionally on the surface of the rotating roller, and the rotating roller is pushed to rotate, thereby reducing the conveying resistance of the cable. A hole is opened in the middle position of the surface of the conducting disk. When the cable passes through the conducting disk, its surface is in close contact with the surface of the rotating column. The elasticity of the first spring enables the plunger body to slide into or out of the conducting disk, so as to guide and convey secondary cables with different diameters. The part of the cable that is unrolled first is pulled to the cable rack along with the dragging of the moving trolley, which can prevent the moving trolley from tipping due to excessive dragging force.

[0023] 3. For the cable pay-off machine for secondary cable laying in a substation, the first spring enables the plunger body to slide in and out of the conducting disk. At the same time, the adjustment of the connecting rod angle enables cables with different diameters to be guided and conveyed. The hydraulic cylinder adjusts the height of the inner hole disk, and the electric turntable drives the inner hole disk to rotate. The rollers guide the cable to the cable rack on the side position. At this time, when the cable passes through the conducting disk, it will be pulled upward, and the conducting disk is driven by the cable to deflect upward. The ball hinge connection method makes the resistance smaller when the cable is guided to the rollers, and the cable is less likely to be damaged during cable laying.

[0024] 4. For the cable pay-off machine used in the secondary cable laying of the substation, the hydraulic cylinder raises the extension assembly to the height of the cable rack. At the same time, the screw lifter raises the pressing component to the height of the cable. The electric cylinder drives the pressing component to extend to a determined position above the cable rack. During the movement of the mobile trolley, the wire reel rotates to pay off the cable. The cable between the extension assembly and the pressing component is in a straight laying state, and the cable will not push or pull the surrounding cables during pay-off, solving the problem of how to avoid interfering with other cables on the cable rack during pay-off.

[0025] 5. For the cable pay-off machine used in the secondary cable laying of the substation, the mechanism with a smaller height can extend to the position between the densely arranged cable racks. At the same time, the distance between the magnetic plate and the electromagnet is also small. After the electromagnet is energized, the second spring is compressed, and the sliding rod slides closer to the cable. The surface of the cable is quickly clamped by the pressing plate. Then, the distance between the electromagnet and the magnetic plate becomes smaller, and both ends of the cable conduit extend so that the cable is not easily deflected left and right when being pulled. When the cable conduit extends to the position between the cable racks, the cable rack is less likely to squeeze other cables during the dragging process, making the pay-off and laying of the secondary cable more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional view of the overall front of the cable pay-off machine for the secondary cable laying of the present invention;

[0027] Figure 2 is a three-dimensional view of the overall back of the cable pay-off machine for the secondary cable laying of the present invention;

[0028] Figure 3 is a schematic structural diagram of the wire limiting mechanism of the present invention viewed from above;

[0029] Figure 4 is a schematic structural diagram of the wire limiting mechanism of the present invention viewed from below;

[0030] Figure 5 is a schematic structural diagram of the buffer component of the present invention;

[0031] Figure 6 is a schematic structural diagram of the extension component of the present invention;

[0032] Figure 7 is a schematic structural diagram of the guiding component of the present invention;

[0033] Figure 8 is a schematic structural diagram of the dragging and traction mechanism of the present invention;

[0034] Figure 9 is a schematic structural diagram of the pressing component of the present invention.

[0035] In the figure: 1, forklift; 2, wire limiting mechanism; 21, bottom plate; 22, buffer assembly; 221, first housing; 222, rotating roller; 223, second housing; 224, arc plate; 23, screw slide; 24, support table; 25, electric turntable; 26, hydraulic cylinder; 27, extension assembly; 271, inner hole disc; 272, connecting rod; 273, C-shaped frame; 274, roller; 275, cylinder; 276, rotating pin; 28, guiding assembly; 281, ball hinge; 282, guiding disc; 283, first spring; 284, plunger body; 285, rotating column; 3, motor; 4, support gear; 5, wire reel; 6, gear ring; 7, moving trolley; 8, dragging and traction mechanism; 81, threaded lifter; 82, electric cylinder; 83, rectangular plate; 84, wire threading pipe; 85, pressing and fixing assembly; 851, sliding rod; 852, pressing plate; 853, magnetic plate; 854, electromagnet; 855, second spring. Detailed implementation mode

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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, rather than all 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.

[0037] The first embodiment: As Figures 1 - 4 shown, the present invention provides a technical solution: A cable pay-off machine for the secondary cable laying of a substation, including a forklift 1, a motor 3 and a moving trolley 7. The rotating shaft at the output end of the motor 3 is fixedly connected with a support gear 4. The surface of the support gear 4 is engaged with a gear ring 6. On the side of the surface of the gear ring 6 away from the support gear 4, a wire reel 5 is fixedly connected. It also includes:

[0038] A wire limiting mechanism 2, the bottom of the wire limiting mechanism 2 is placed on the top of the output end of the forklift 1, and the position of the surface of the wire limiting mechanism 2 close to the edge is fixedly connected with the bottom of the motor 3. The wire limiting mechanism 2 is used for the temporary storage of the unrolled cable and the guidance of the cable to a determined position above the cable rack;

[0039] A dragging and traction mechanism 8, the bottom of the dragging and traction mechanism 8 is fixedly installed on the top of the moving trolley 7. The dragging and traction mechanism 8 is used for the quick pressing of the end face of the cable and the dragging and traction of the cable after unrolling;

[0040] Among them, the wire limiting mechanism 2 includes a bottom plate 21. A buffer assembly 22 is fixedly connected to the top of the bottom plate 21. A screw rod slide 23 is fixedly connected to the top of the bottom plate 21. The output end of the screw rod slide 23 is fixedly connected to a support platform 24. An electric rotary table 25 is fixedly connected to the top of the support platform 24. The output end of the electric rotary table 25 is fixedly connected to a hydraulic cylinder 26. The output end of the hydraulic cylinder 26 is fixedly connected to an extension assembly 27. A guiding assembly 28 is rotatably connected to the top of the support platform 24;

[0041] The bottom of the bottom plate 21 is placed on the top of the output end of the forklift 1. The bottom of the motor 3 is fixedly installed at a position near the edge of the top of the bottom plate 21. The buffer assembly 22 is located directly below the wire reel 5.

[0042] During use, the forklift 1 transports the wire reel 5 to the entrance of the cable trench. The moving trolley 7 enters the interior of the cable trench. As the moving trolley 7 moves, the dragging and traction mechanism 8 drags the cable. The oppositely arranged support gears 4 support and limit the gear ring 6. When the motor 3 drives the support gears 4 to rotate, the gear ring 6 drives the wire reel 5 to rotate, replacing manual pulling of the cable to make the wire reel 5 unwind. This method can control the unwinding length and time of the cable. After the dragging and traction mechanism 8 quickly clamps the end face of the cable, the dragging and traction mechanism 8 guides the cable to a determined position on the cable rack. The electric rotary table 25 drives the extension assembly 27 to rotate a certain angle so that the unwinding direction of the extension assembly 27 is directly opposite to the cable rack. The buffer assembly 22 retains the unrolled cable. This part of the cable is dragged by the moving trolley 7 through the guiding assembly 28 and the extension assembly 27 to the cable rack, solving the problem of how to use machinery to replace manual dragging in the cable trench to place the cable on the cable rack.

[0043] Second embodiment: As Figures 3 - 5 、 Figure 7 shown, the buffer assembly 22 includes a first housing 221. The bottom of the first housing 221 is fixedly installed on the top of the bottom plate 21. A rotating roller 222 is rotatably connected to a position above the surface of the first housing 221 through a bearing. The buffer assembly 22 further includes a second housing 223. The surface of the second housing 223 is connected to the position below the surface of the first housing 221 through bolts. An arc-shaped plate 224 is fixedly connected to the top of the second housing 223;

[0044] The guiding assembly 28 includes a ball hinge 281. The surface of the ball hinge 281 is rotatably installed at a position above the surface of the support platform 24. A guiding disk 282 is fixedly connected to the outer surface of the ball hinge 281. The guiding assembly 28 further includes a first spring 283. The end face of the first spring 283 is fixedly installed on the inner side of the guiding disk 282. The other end of the first spring 283 is fixedly connected to a plunger body 284. A rotating column 285 is rotatably connected to the surface of the plunger body 284.

[0045] In use, the motor 3 drives the support gear 4 to rotate, and the cable is unrolled as the winding wheel 5 rotates. The unrolled cable is temporarily stored at the position between the first housing 221 and the second housing 223. The first housing 221 and the second housing 223 are independently arranged to facilitate disassembly and maintenance. The arc-shaped plate 224 is arranged near the cable unrolling point. The arc-shaped plate 224 guides the cable into the interior of the second housing 223 to prevent the cable from being squeezed, piled up and wound. The cable frictionally slides on the surface of the rotating roller 222, and the rotating roller 222 is pushed to rotate, thereby reducing the conveying resistance of the cable. A hole is provided in the middle position of the surface of the conducting plate 282. When the cable passes through the conducting plate 282, its surface is in close contact with the surface of the rotating column 285. The elasticity of the first spring 283 enables the plunger body 284 to slide into or out of the conducting plate 282, so as to guide and convey secondary cables with different diameters. The part of the cable that is preferentially unrolled is pulled to the cable rack along with the dragging of the moving trolley 7, which can prevent the moving trolley 7 from tipping over due to excessive dragging force.

[0046] Third Embodiment: As Figure 6 、 Figure 7 shown, the surface of the ball hinge 281 is rotatably installed above the surface of the support table 24. The outer surface of the ball hinge 281 is fixedly connected with a conducting plate 282. The guiding assembly 28 further includes a first spring 283. The end face of the first spring 283 is fixedly installed on the inner side surface of the conducting plate 282. The other end of the first spring 283 is fixedly connected with a plunger body 284. The surface of the plunger body 284 is rotatably connected with a rotating column 285;

[0047] The extension assembly 27 includes an inner hole plate 271. The bottom of the inner hole plate 271 is fixedly installed at the output end of the hydraulic cylinder 26. A connecting rod 272 is rotatably connected to a position near the edge of the surface of the inner hole plate 271. An air cylinder 275 is fixedly connected to a position near the connecting rod 272 on the surface of the inner hole plate 271. The number of the connecting rods 272 is two;

[0048] The output end of the air cylinder 275 is fixedly connected with a rotating pin 276. The bottom of the rotating pin 276 is rotatably installed at the top of the connecting rod 272. One end of the connecting rod 272 away from the inner hole plate 271 is fixedly connected with a C-shaped frame 273. A roller 274 is rotatably connected to the inner side surface of the C-shaped frame 273.

[0049] During use, multiple rotating columns 285 support and limit the cable. The bottom of the conducting plate 282 is installed on the top of the support platform 24 through a ball hinge 281. The conducting plate 282 is arranged at the position between the second housing 223 and the inner hole plate 271. After the cable passes through the conducting plate 282 and the inner hole plate 271, it is in close contact with the surface of the roller 274. When the cylinder 275 drives the rotating pin 276 closer, the angle between the connecting rods 272 composed of double rods decreases, and the oppositely arranged rollers 274 support and limit the cable. The first spring 283 enables the plunger body 284 to slide in and out of the conducting plate 282 with a variable diameter. At the same time, the adjustment of the angle of the connecting rod 272 enables cables of different diameters to be guided and conveyed. The hydraulic cylinder 26 adjusts the height of the inner hole plate 271, and the electric turntable 25 drives the inner hole plate 271 to rotate. The roller 274 guides the cable to the cable rack at the side position. At this time, when the cable passes through the conducting plate 282, it will be pulled upward, and the conducting plate 282 is driven by the cable to deflect upward. The connection method of the ball hinge 281 makes the resistance smaller when the cable is guided to the roller 274, and the cable is less likely to be damaged during cable pay-off.

[0050] The fourth embodiment: As Figure 3 , Figure 8 shown, a buffer assembly 22 is fixedly connected to the top of the bottom plate 21, a screw rod slide 23 is fixedly connected to the top of the bottom plate 21, the output end of the screw rod slide 23 is fixedly connected to a support platform 24, an electric turntable 25 is fixedly connected to the top of the support platform 24, a hydraulic cylinder 26 is fixedly connected to the output end of the electric turntable 25, an extension assembly 27 is fixedly connected to the output end of the hydraulic cylinder 26, and a guiding assembly 28 is rotatably connected to the top of the support platform 24;

[0051] The dragging and traction mechanism 8 includes a threaded lifter 81. The bottom of the threaded lifter 81 is fixedly installed on the top of the mobile trolley 7. The output end of the threaded lifter 81 is fixedly connected to an electric cylinder 82. The dragging and traction mechanism 8 further includes a rectangular plate 83. The middle position on the surface of the rectangular plate 83 is fixedly installed on the output end of the electric cylinder 82. A wire threading pipe 84 is fixedly connected to the side of the rectangular plate 83 away from the rectangular plate 83. A pressing and fixing assembly 85 is fixedly connected to the middle position on the surface of the rectangular plate 83.

[0052] In use, multiple cable lines are erected on the cable rack. Before erecting the cable lines, the wire reel 5 drives a certain length of cable to unwind and be stored inside the buffer assembly 22. The end face of the cable passes through the guiding assembly 28 and is guided by the guiding assembly 28 to the extending assembly 27. The cable passes through the pipe 84 and is clamped by the clamping assembly 85. The screw slide 23 drives the support table 24 to approach the cable rack. The electric turntable 25 adjusts the angle between the extending assembly 27 and the cable rack. The hydraulic cylinder 26 raises the extending assembly 27 to the height of the cable rack. At the same time, the screw lifter 81 raises the clamping assembly 85 to the height of the cable line. The electric cylinder 82 drives the clamping assembly 85 to extend to a determined position above the cable rack. During the movement of the moving trolley 7, the wire reel 5 rotates to pay out the cable. The cable between the extending assembly 27 and the clamping assembly 85 is in a straight laying state. The cable line will not push or pull the surrounding cables during pay-out, solving the problem of how to avoid interfering with other cables on the cable rack during pay-out.

[0053] The fifth embodiment: As Figure 6 , Figure 9 shown, the bottom of the inner hole disc 271 is fixedly installed at the output end of the hydraulic cylinder 26. Link rods 272 are rotatably connected to positions on the surface of the inner hole disc 271 near the edge. Cylinders 275 are fixedly connected to positions on the surface of the inner hole disc 271 near the link rods 272. The number of link rods 272 is two;

[0054] The output end of the cylinder 275 is fixedly connected with a rotating pin 276. The bottom of the rotating pin 276 is rotatably installed at the top of the link rod 272. The end of the link rod 272 away from the inner hole disc 271 is fixedly connected with a C-shaped frame 273. A roller 274 is rotatably connected to the inner side surface of the C-shaped frame 273;

[0055] The clamping assembly 85 includes a slide rod 851. The surface of the slide rod 851 is slidably installed at the middle position of the surface of the pipe 84. The number of slide rods 851 is two, and end faces of the two slide rods 851 are fixedly connected with pressing plates 852;

[0056] The clamping assembly 85 further includes a magnetic plate 853 and an electromagnet 854. The surfaces of the magnetic plate 853 and the electromagnet 854 are respectively fixedly installed at the end faces of the two slide rods 851. Second springs 855 are fixedly connected to the surfaces of the magnetic plate 853 and the electromagnet 854.

[0057] In use, the connecting rod 272 is formed by hinging two rods. The mechanism composed of the air cylinder 275, the rotating pin 276 and the connecting rod 272 has a small height. The air cylinder 275 causes the connecting rod 272 to rotate by a certain angle relative to the rotating pin 276. The oppositely arranged rollers 274 limit and guide the cable. The inner hole disk 271 rotates towards the cable rack. The screw rod slide table 23 drives the connecting rod 272 to extend above the cable rack. The mechanism with a small height can extend to the position between the densely arranged cable racks. At the same time, the distance between the magnetic plate 853 and the electromagnet 854 is also small. After the electromagnet 854 is powered on, the second spring 855 is compressed, and the slide rod 851 slides close to the cable. The surface of the cable is quickly clamped by the pressing plate 852. Then, the distance between the electromagnet 854 and the magnetic plate 853 is even smaller. The two ends of the cable conduit 84 extend so that the cable is not easily deflected left and right when being pulled. When the cable conduit 84 extends to the position between the cable racks, the cable rack is less likely to squeeze other cables during the dragging process, making the laying efficiency of the secondary cable higher.

[0058] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation. An element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

Claims

1. A cable pay-off machine for laying secondary cables for power transformation, comprising a forklift (1), a motor (3) and a mobile trolley (7), characterized in that: The rotating shaft at the output end of the motor (3) is fixedly connected to a supporting gear (4), a gear ring (6) is meshed on the surface of the supporting gear (4), and a winding wheel (5) is fixedly connected on the side of the surface of the gear ring (6) away from the supporting gear (4), and further comprises: A wire limiting mechanism (2), the bottom of which is placed on the top of the output end of the forklift (1), the surface of which is close to the edge and fixedly connected to the bottom of the motor (3), the wire limiting mechanism (2) is used for temporarily storing unreeled cables and guiding the cables to a determined position above the cable rack; A dragging and traction mechanism (8), the bottom of which is fixedly mounted on the top of the moving trolley (7), and the dragging and traction mechanism (8) is used for quickly pressing the end face of the cable and for traction and dragging the cable after unwinding; The wire limiting mechanism (2) comprises a base plate (21), the top of the base plate (21) is fixedly connected to a buffer assembly (22), the top of the base plate (21) is fixedly connected to a screw slide (23), the output end of the screw slide (23) is fixedly connected to a support platform (24), the top of the support platform (24) is fixedly connected to an electric turntable (25), the output end of the electric turntable (25) is fixedly connected to a hydraulic cylinder (26), the output end of the hydraulic cylinder (26) is fixedly connected to an extension assembly (27), and the top of the support platform (24) is rotatably connected to a guide assembly (28); the guide assembly (28) comprises a ball hinge (281), the surface of the ball hinge (281) is rotatably mounted above the surface of the support platform (24), and the outer surface of the ball hinge (281) is fixedly connected to a guide plate (282); The extension assembly (27) comprises an inner hole plate (271), the bottom of the inner hole plate (271) is fixedly mounted on the output end of the hydraulic cylinder (26), a connecting rod (272) is rotatably connected to a position near the edge of the surface of the inner hole plate (271), and a cylinder (275) is fixedly connected to a position near the connecting rod (272) on the surface of the inner hole plate (271); There are two connecting rods (272), the output end of the cylinder (275) is fixedly connected with a rotating pin (276), the bottom of the rotating pin (276) is rotatably mounted on the top of the connecting rod (272), one end of the connecting rod (272) away from the inner hole disk (271) is fixedly connected with a C-shaped frame (273), and the inner side surface of the C-shaped frame (273) is rotatably connected with a roller (274); The dragging and traction mechanism (8) further comprises a rectangular plate (83), a pressing assembly (85) being fixedly connected to the middle position of the surface of the rectangular plate (83), the pressing assembly (85) comprising a sliding rod (851), the surface of the sliding rod (851) being slidably mounted to the middle position of the surface of the threading tube (84), there being two sliding rods (851), and the end surfaces of the two sliding rods (851) being fixedly connected to a pressing plate (852); The pressing assembly (85) further comprises a magnetic plate (853) and an electromagnet (854); the surfaces of the magnetic plate (853) and the electromagnet (854) are respectively fixedly mounted on the end surfaces of the two slide bars (851); and the surfaces of the magnetic plate (853) and the electromagnet (854) are both fixedly connected to a second spring (855).

2. The cable pay-off machine for laying substation secondary cables according to claim 1, characterized in that: The bottom of the base plate (21) is placed on the top of the output end of the forklift (1), the bottom of the motor (3) is fixedly mounted on the top of the base plate (21) near the edge, and the buffer assembly (22) is located directly below the winding wheel (5).

3. The cable pay-off machine for laying substation secondary cables according to claim 2, characterized in that: The cache assembly (22) comprises a first shell (221), the bottom of which is fixedly mounted on the top of the base plate (21), and a rotating roller (222) is rotatably connected to the upper portion of the surface of the first shell (221) via a bearing.

4. The cable pay-off machine for laying substation secondary cables according to claim 3, characterized in that: The cache assembly (22) also includes a second shell (223), the surface of the second shell (223) is connected to the lower position of the surface of the first shell (221) by bolts, and the top of the second shell (223) is fixedly connected with an arc plate (224).

5. The cable pay-off machine for laying substation secondary cables according to claim 4, characterized in that: The guide assembly (28) also includes a first spring (283), the end surface of which is fixedly mounted on the inner side surface of the guide plate (282), the other end of which is fixedly connected to a plunger body (284), and the surface of which is rotatably connected to a rotating column (285).

6. The cable pay-off machine for laying substation secondary cables according to claim 5, characterized in that: The dragging and traction mechanism (8) comprises a thread lifter (81), the bottom of the thread lifter (81) is fixedly mounted on the top of the moving trolley (7), and the output end of the thread lifter (81) is fixedly connected to an electric cylinder (82).

7. The cable pay-off machine for laying substation secondary cables according to claim 6, characterized in that: The middle position of the surface of the rectangular plate (83) is fixedly mounted on the output end of the electric cylinder (82), and a wire threading tube (84) is fixedly connected to one side of the rectangular plate (83) away from the rectangular plate (83).

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