A straight-line motor stator cable bending and complete-set equipment

Abstract

The present invention discloses a complete set of equipment for bending the stator cable of a linear motor. A cable straightening device, a U-shaped bending device, a pushing device for bending the cable, and a shaping device for the end of the bent cable are sequentially arranged on an integral base, so as to realize the integration and miniaturization of the complete set of equipment for bending the stator cable of a linear motor, which is convenient for hoisting and transporting to the construction site, and can bend the cable at the construction site, thus avoiding the problem that the long bent cable is not convenient for transportation. This complete set of equipment for bending the cable does not need to be transported through a track and does not occupy the track, has low requirements for the installation site, and is applicable to various construction sites.

Description

Technical Field

[0001] The present invention relates to the technical field of maglev transportation, and particularly to a complete set of equipment for bending the stator cable of a linear motor. Background Art

[0002] Maglev trains have the advantages of high speed, low energy consumption, low noise, no pollution, safety, comfort, and less maintenance, and have good development prospects, which will be the development direction in the field of rail transit. Currently, there are maglev dedicated lines in commercial operation in Shanghai and Changsha, and multiple maglev dedicated lines are under planning and construction.

[0003] During the construction of maglev dedicated lines, the required linear motor stator is formed by bending a cable using a cable bending device into a serpentine bent cable composed of multiple continuous U-shaped bends. Usually, the coiled cable is bent into a bent cable in a factory, and then the bent cable is transported to the installation site for installation. Since the bent cable is very long and not convenient for transportation, and it will also rebound and deform during transportation, it is difficult to install the stator cable of the maglev dedicated line into the stator slot of the linear motor, and it needs to be reshaped on site, reducing the installation efficiency. Therefore, it is best to place the cable bending device on site for on-site bending. This requires the integration and miniaturization of the cable bending device to facilitate hoisting and transportation.

[0004] After patent retrieval, the main patents related to the present application are as follows:

[0005] 1. A Chinese invention patent with the application number "03129527.4", application date "2003.06.26", publication number "CN1283507C", publication date "2006.11.08", titled "Semi-automatic laying combination vehicle for stator coils of maglev trains", and applicant "Shanghai Maglev Transportation Development Co., Ltd.". This invention patent is composed of a power tractor, an equipment carrier vehicle, a formed coil conveyor vehicle, an operation platform vehicle, and an inlaying vehicle. The power tractor, equipment carrier vehicle, formed coil conveyor vehicle, and operation platform vehicle are connected by traction linkages. The inlaying vehicle is placed on the operation platform vehicle. The power tractor is equipped with a diesel generator to supply power to the whole vehicle. The equipment carrier vehicle is provided with a cable unwinding rack and a coil bending device. However, this patent is composed of three standard rail carriages and can only be transported and parked on the track, with limited installation positions and low integration level.

[0006] 2. A Chinese invention patent with the application number "202011372712.8", application date "2020.11.30", publication number "CN112688505A", publication date "2021.04.20", title "Maglev Long Stator Coil Laying Vehicle System", and applicant "Shanghai Installation Engineering Group Co., Ltd.". This invention patent discloses a maglev long stator coil laying vehicle system, including: a first vehicle with a cable reel loaded on its vehicle body; a second vehicle with a cable bending device assembled on its vehicle body, which is used to bend the cable conveyed by the cable reel of the first vehicle into a long stator coil; a third vehicle with an external hanging operation platform on both sides of its vehicle body for receiving the long stator coil conveyed by the second vehicle. However, this patent can only be transported and parked on the track, with limited installation positions and low integration levels.

[0007] 3. A Chinese invention patent with the application number "202110165896.9", application date "2021.02.07", publication number "CN112510939A", publication date "2021.03.16", title "Maglev Long Stator Coil Automatic Bending Device and Method", and applicant "Shanghai Installation Engineering Group Co., Ltd.". This invention patent discloses a maglev long stator coil automatic bending device and method, including a first motion mechanism, a second motion mechanism, a third motion mechanism, and a control device. By controlling the motion relationship of the first motion mechanism, the second motion mechanism, and the third motion mechanism through the control device, the automated operation of bending the cable into a maglev long stator coil is realized, which can improve the bending efficiency, bending accuracy, and reduce labor costs. However, this patent only discloses the structure of the device for bending the U-shaped part of the cable, and does not involve devices such as cable straightening, cable pushing, and cable shaping. Moreover, it is not a complete set of equipment for bending the linear motor stator cable, and does not involve the technical problems of integrating, miniaturizing the cable bending equipment, and transporting it to the construction site for on-site bending. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to provide a complete set of equipment for bending the linear motor stator cable to address the deficiencies in the prior art.

[0009] To solve the above technical problems, the technical solution adopted by the present invention is as follows: a complete set of equipment for bending a linear motor stator cable, which includes a cable straightening device, a U-shaped bending device, a cable bending and pushing device, a cable end shaping device for bending, and an overall base; the cable straightening device, the U-shaped bending device, the cable bending and pushing device, and the cable end shaping device for bending are sequentially arranged on the overall base, and the overall lifting or transportation is carried out through the overall base. The integration and miniaturization of the complete set of equipment for bending a linear motor stator cable are realized, which is convenient for hoisting and transporting to the construction site, and can bend the cable at the construction site, thus avoiding the problem that long bent cables are not easy to transport. This complete set of cable bending equipment does not require transportation through tracks and does not occupy tracks, has low requirements for the installation site, and is applicable to various construction sites.

[0010] Further, the cable straightening device includes: a cable straightening base, a first roller, a second roller, and a grooved wheel; two first rollers are arranged on the cable straightening base in parallel at intervals, and the distance between the two first rollers is not greater than the diameter of the cable to be bent; two second rollers are arranged on the cable straightening base in parallel at intervals in a direction perpendicular to the first rollers, and the distance between the two second rollers is not greater than the diameter of the cable; the two second rollers are arranged behind the two first rollers along the cable conveying direction; two grooved wheels are arranged at intervals on both sides of the cable, and during the process of the cable passing between the two grooved wheels, the grooved wheels shape the cable. The bent cable is straightened by using the first roller and the second roller arranged perpendicular to each other; at the same time, the outer circle of the cable is shaped by using the grooved wheel with an arc-shaped groove. The bent cable after uncoiling is straightened and shaped to meet the requirements of subsequent bending processes.

[0011] Further, the U-shaped bending device includes: a bending base, a follower die seat, a bending push seat, and a fixed die seat; the fixed die seat is fixedly installed on the bending base and is used to clamp and fix the straight section of the bent cable that has been bent into a U shape; the bending push seat is slidably installed on the bending base and can slide along the cable conveying direction X; a push die is arranged on the bending push seat and can slide along the U-shaped bending push direction Y; the follower die seat is slidably installed on the bending base and can slide along the cable conveying direction X and is used to clamp and fix the straight section of the bent cable.

[0012] Further, the bending push seat includes: a pushing force, a push rod seat, a push rod, a push frame, a push guide rail, a push base, and a push die; the pushing force, the push rod seat, and the push guide rail are fixedly installed on the bending base, the push rod is installed on the push rod seat in a transmission manner along the U-shaped bending push direction, the push frame is fixed to the bottom of the push base, the push die is fixedly installed on the push base, and the pushing force drives the push frame to move along the U-shaped bending push direction through the push rod, thereby driving the push base and the push die to move on the push guide rail.

[0013] Further, the bent cable pushing device includes a pushing base seat and a pushing component. A pushing slot perpendicular to the pushing direction is provided on the pushing base seat. The width of the pushing slot is not less than the diameter of the cable. The bent cable can be embedded in the pushing slot, and the pushing component drives the pushing base seat and the bent cable to move along the pushing direction. The pushing base seat with the pushing slot is used to position the bent cable, and the intermittent pushing method is adopted for pushing. This makes the pushing distance more accurate, so as to ensure that the dimensions of the U-shaped bend are consistent, improve the bending quality, and ensure that the bent cable can be smoothly embedded in the wire slot of the linear motor stator.

[0014] Further, the pushing component includes: a pushing lifting seat, a pushing motor, a pushing gear, a pushing rack, a pushing guide rail and a pushing guide groove; the pushing guide rail is arranged on the upper side of the pushing lifting seat along the pushing direction, the pushing gear is rotationally connected with the pushing motor, and the pushing motor is arranged on the pushing lifting seat; the pushing rack is arranged on one side of the pushing base seat and meshes with the pushing gear; the pushing guide groove is arranged on the lower side of the pushing base seat and cooperates with the pushing guide rail; the pushing motor drives the pushing base seat to move back and forth along the pushing direction through the pushing gear and the pushing rack.

[0015] Further, the end shaping device for the bent cable includes: an end shaping device base, a cable clamping and fixing component, and an end shaping die. A plurality of cable clamping and fixing components are installed at intervals in the middle part of the end shaping device base, and the end shaping die is installed on both sides of the cable clamping and fixing component. The cable clamping and fixing component is used to clamp and fix the parallel section of the bent cable of the bent cable on the end shaping device base; the end shaping die is used to clamp and push the bent section of the bent cable of the bent cable, so that the bent section of the bent cable is bent to form a bent cable shaping section with a three-dimensional twisted shape. The bent cable is pushed into the arc groove of the clamping groove by the clamping convex block with an arc groove, so as to clamp and fix the bent cable. At the same time, the end shaping die for the bent cable is used to shape the end of the bent cable. During installation, the bottoms of the U-shaped bends of the three-phase bent cables can be staggered in space, so that the bent cables can be smoothly embedded in the wire slots of the linear motor stator, thereby improving the installation quality and installation efficiency.

[0016] Further, a hoisting sling for the complete set of equipment for bending the linear motor stator cable is also provided, including: a main beam, a suspension rod and a pin shaft. 4 suspension rods are arranged at both ends of the main beam. One end of the suspension rod is connected to the main beam, and the other end of the suspension rod is connected to the overall base. Using the hoisting sling to hoist the complete set of equipment for bending the cable can ensure firm and reliable connection, and can always keep the complete set of equipment for bending the cable in a horizontal state during hoisting, prevent various devices from slipping and falling, and ensure the safety of personnel and equipment.

[0017] Further, a hydraulic power station is also included, and the hydraulic power station provides power for the hydraulic cylinders in the complete set of equipment for bending the linear motor stator cable.

[0018] Furthermore, the hydraulic power station is placed near the end shaping device for the bent cable. A diverter plate is provided on the top surface of the hydraulic power station, and a diverter railing is arranged inside the diverter plate. The bent cable entering the diverter plate is guided to outlet one or outlet two by the diverter railing, so as to output the bent cables of different phases from different outlets for classified storage.

[0019] The beneficial effects of the present invention are as follows: The cable straightening device, U-shaped bending device, bent cable pushing device and end shaping device for the bent cable are sequentially arranged on the overall base to realize the integration and miniaturization of the complete set of equipment for bending the linear motor stator cable, which is convenient for hoisting and transporting to the construction site and can bend the cable at the construction site, thus avoiding the problem that the long bent cable is not convenient for transportation. This complete set of cable bending equipment does not need to be transported through tracks and does not occupy tracks, has low requirements for the installation site, and is applicable to various construction sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the cable bending for the linear motor stator.

[0021] Figure 2 is a three-dimensional structural schematic diagram of the complete set of equipment for bending the linear motor stator cable with a hydraulic station.

[0022] Figure 3 is a three-dimensional structural schematic diagram of the complete set of equipment for bending the linear motor stator cable.

[0023] Figure 4 is a three-dimensional structural schematic diagram of the cable straightening device 100.

[0024] Figure 5 is a side view schematic diagram of the cable straightening device 100.

[0025] Figure 6 is Figure 5 the sectional view taken along line A-A in

[0026] Figure 7 is a three-dimensional structural schematic diagram of the U-shaped bending device 200.

[0027] Figure 8 is a three-dimensional structural schematic diagram of the bending push seat 230.

[0028] Figure 9 is the three-dimensional structural schematic of the bent cable pushing device 300 Figure 1 ,

[0029] Figure 10 is the three-dimensional structural schematic of the bent cable pushing device 300 Figure 2 ,

[0030] Figure 11Schematic three-dimensional structure diagram of the initial pushing position of the cable bending and pushing device 300.

[0031] Figure 12 Schematic three-dimensional structure diagram of the end pushing position of the cable bending and pushing device 300.

[0032] Figure 13 Schematic three-dimensional structure diagram of the cable end shaping device 400.

[0033] Figure 14 Schematic three-dimensional structure diagram of the cable clamping and fixing assembly 420.

[0034] Figure 15 Schematic three-dimensional structure diagram when the cable clamping and fixing 420 clamps the cable.

[0035] Figure 16 Schematic three-dimensional structure diagram of the end shaping die 430.

[0036] Figure 17 Schematic three-dimensional structure diagram when shaping the end of the bent cable.

[0037] Figure 18 Schematic three-dimensional structure diagram of the hoisting sling 700.

[0038] Figure 19 For Figure 18 Partial enlarged schematic diagram of F in

[0039] Figure 20 Schematic three-dimensional structure diagram when the stator cable of the linear motor is bent and sleeved for hoisting.

[0040] In the figure: 100 - cable straightening device; 101 - cable straightening base, 102 - roller 1, 103 - roller 2, 104 - sheave, 105 - sheave mounting groove, 106 - adjusting screw, L - roller spacing, K - sheave clearance, R104 - radius of the arc groove.

[0041] 200 - U-shaped bending device; 210 - bending base, 220 - follower die seat, 230 - bending push seat; 231 - pushing force, 232 - push rod seat, 233 - push rod, 234 - push frame, 235 - push guide rail, 236 - push base, 237 - push die; 240 - fixed die seat.

[0042] 300 - Cable Bending and Pushing Device, 301 - Pushing Base, 302 - Pushing Lifting Guide Rod, 303 - Pushing Lifting Seat, 304 - Pushing Motor, 305 - Pushing Gear, 306 - Pushing Rack, 307 - Pushing Clamping Seat, 308 - Pushing Clamping Slot, 309 - Shaping Fixture Slot, 310 - Pushing Lifting Cylinder, 311 - Pushing Lifting Rod, 312 - Pushing Guide Rail, 313 - Pushing Guide Slot, H - Width of Shaping Fixture Slot.

[0043] 400 - Cable End Shaping Device for Bending; 410 - End Shaping Device Base; 420 - Cable Pressing and Fixing Assembly, 421 - Pressing Punch, 422 - Pressing Protrusion, 423 - Pressing Baffle Slot, 424 - Pressing Positioning Hole, 425 - Pressing Positioning Pin, 426 - Pressing Baffle, 427 - Pressing Groove, 428 - Pressing Die, 429 - Pressing Lifting Cylinder, 430 - End Shaping Die, 431 - Shaping Die, 432 - Shaping Groove, 433 - Shaping Die Inclined Plane, 434 - Shaping Die Baffle, 435 - Shaping Positioning Hole, 436 - Shaping Positioning Pin, 437 - Shaping Protrusion, 438 - Shaping Punch, 439 - Shaping Lifting Cylinder 1, 440 - Shaping Lifting Cylinder 2.

[0044] 500 - Integral Base;

[0045] 600 - Hydraulic Power Station, 601 - Direction Dividing Disk, 602 - Direction Dividing Rail, 603 - Outlet 1, 604 - Outlet 1;

[0046] 700 - Hoisting Sling for Complete Cable Bending Equipment, 701 - Hoisting Ring, 702 - Secondary Beam, 703 - Main Beam, 704 - Boom Mounting Seat, 705 - Axle Bushing, 706 - Boom, 707 - Axle Pin Bolt, 708 - Protective Cover, 709 - Reinforcing Rib.

[0047] 900 - Bent Cable, 901 - Straight Section of Bent Cable, 902 - Bent Section of Bent Cable, 903 - Parallel Section of Bent Cable, 904 - Shaping Section of Bent Cable, d - Cable Diameter, L1 - U - Bend Spacing, X - Cable Conveying Direction, Y - U - Bend Pushing Direction, Z - Vertical Direction. Detailed Embodiment

[0048] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings:

[0049] As Figure 1As shown, the linear motor stator required for the construction of the maglev dedicated line is formed by bending a cable using a cable bending device to form a bent cable 900, and then transporting the bent cable 900 to the installation site for installation. The bent cable 900 is a snake shape composed of multiple consecutive U-shaped bends, including: a straight section 901 of the bent cable, a parallel section 902 of the bent cable, a bent section 903 of the bent cable, or a shaping section 904 of the bent cable, and the distance between U-shaped bends is L1.

[0050] As Figure 2 shown, the complete set of equipment for bending the linear motor stator cable of the present invention includes: a cable straightening device 100, a U-shaped bending device 200, a pushing device 300 for the bent cable, an end shaping device 400, an integral base 500, and a hydraulic power station 600.

[0051] As Figure 3 shown, the present invention arranges the cable straightening device 100, the U-shaped bending device 200, the pushing device 300 for the bent cable, and the end shaping device 400 on the integral base 500 in sequence, and performs overall hoisting or transportation through the integral base 500.

[0052] The cable straightening device 100 is as Figures 4 to 6 shown, and includes: a cable straightening base 101, a pair of first rollers 102, a pair of second rollers 103, and two pairs of grooved wheels 104. The first rollers 102, the pair of second rollers 103, and the two pairs of grooved wheels 104 are arranged on the cable straightening base 101 in sequence along the cable conveying direction X.

[0053] The first rollers 102 and the second rollers 103 are cylindrical, and the outer layer is a rubber layer. The two first rollers 102 are installed vertically in the Z direction and arranged in parallel at intervals on the cable straightening base 101, and the cable 900 passes through between the two first rollers 102. By adjusting the distance between the two first rollers 102, or by replacing the first rollers 102 with different diameters, the roller distance L is adjusted to be within the range of 0.85 to 0.95 times the cable diameter d. So that the two first rollers 102 can press on the cable 900, which can not only achieve a good straightening effect but also avoid pressing the cable 900.

[0054] The two second rollers 103 are arranged in parallel at intervals in a direction perpendicular to the first rollers 102 on the cable straightening base 101. The two second rollers 103 are arranged along the cable conveying direction X behind the two first rollers 102. By adjusting the distance between the two second rollers 103, or by replacing the second rollers 103 with different diameters, the roller distance L is adjusted to be within the range of 0.85 to 0.95 times the cable diameter d. So that the two second rollers 103 press on the cable 900 in a direction perpendicular to the first rollers 102. Using the vertically arranged first rollers 102 and second rollers 103 to straighten the cable 900, so that the bends of the cable 900 in different directions can be straightened.

[0055] Along the cable conveying direction X, there are also two pairs of grooved pulleys 104. The two grooved pulleys 104 in each pair are spaced on both sides of the cable 900. The outer circumference of the grooved pulley 104 is an arc groove with a rubber layer. The radius R104 of the arc groove is not less than half of the cable radius d / 2, and the depth h of the arc groove is not greater than half of the cable radius d / 2.

[0056] During the process of the cable 900 being conveyed between the two pairs of grooved pulleys 104, the arc grooves press on both sides of the cable 900. By using the rolling pressure of the arc grooves on the cable 900, the outer circle of the cable 900 is shaped to improve the roundness of the outer circle of the cable 900.

[0057] The cable straightening base 101 is provided with a grooved pulley mounting groove 105. The grooved pulley mounting groove 105 is a U-shaped groove. The grooved pulley 104 is provided with an adjusting screw 106. The adjusting screw 106 is clamped into the grooved pulley mounting groove 105, and the locking nut is tightened to mount the grooved pulley 104 on the cable straightening base 101. The U-shaped grooved pulley mounting groove 105 is convenient for quickly replacing the grooved pulley 104.

[0058] Using the first rolling roller and the second rolling roller arranged perpendicular to each other to straighten the bent cable; at the same time, using the grooved pulley with an arc groove to shape the outer circle of the cable. Straighten and shape the cable that is bent after uncoiling to meet the requirements of subsequent bending processes.

[0059] The U-shaped bending device 200 is as Figure 7 shown, including: a bending base 210, a follower die seat 220, a bending push seat 230 and a fixed die seat 240. The fixed die seat 240 is fixedly installed on the bending base 210 and is used to clamp and fix the straight section 901 of the bent cable that has been bent into a U shape. The bending push seat 230 is slidably installed on the bending base 210 and can slide along the cable conveying direction X. A push die 237 is arranged on the bending push seat 230 and can slide along the U-shaped bending push direction Y. The follower die seat 220 is slidably installed on the bending base 210 and can slide along the cable conveying direction X and is used to clamp and fix the straight section 901 of the bent cable.

[0060] The bending push seat 230 is as Figure 8As shown, it includes: a bending base 210, a push force 231, a push rod seat 232, a push rod 233, a push frame 234, a push guide rail 235, a push base 236, and a push mold 237; the push force 231, the push rod seat 232 and the push guide rail 235 are fixedly installed on the bending base 210. The push force 231 can be a cylinder, a hydraulic cylinder and an electric rod. In this embodiment, the push force 231 adopts a servo motor, and the push rod 233 adopts a ball screw. A ball screw nut matched with the ball screw is provided in the push frame 234. The servo motor drives the ball screw to rotate, and the push frame 234 moves along the U-shaped bend push direction Y through the ball screw nut, so that the push mold 237 installed on the push base 236 moves along the U-shaped bend push direction Y, so that the cable is bent and formed into a U-shaped bend.

[0061] Two push rod seats 232 are arranged at intervals along the U-shaped bend push direction Y, and both ends of the push rod 233 are rotatably arranged on the two push rod seats 232. The push rod 233 is installed on the two push rod seats 232 along the U-shaped bend push direction Y, the push frame 234 is fixed on the bottom of the push base 236, and the push mold 237 is fixed on the push base 236. The push force 231 pushes the push frame 234 to move along the U-shaped bend push direction Y through the push rod 233, thereby driving the push base 236 and the push mold 237 to move on the push guide rail 235. The cable is embedded in the push mold 237, and the cable is bent into a U shape by the movement of the push mold 237.

[0062] Bending the cable includes the following steps:

[0063] S1: Slide the movable mold seat 220 in the opposite direction along the cable conveying direction X, so that the movable mold seat 220 is away from the fixed mold seat 240.

[0064] S2: Slide the bending push seat 230 in the opposite direction of the cable conveying direction X, so that the bending push seat 230 is located in the middle position between the fixed mold seat 240 and the follower mold seat 220; at the same time, slide the push mold 237 in the opposite direction of the U-shaped bending push direction Y, so that the push mold 237 returns to its initial position.

[0065] S3: The cable is conveyed along the cable conveying direction X, and the bent cable straight section 901 is clamped and fixed by using the fixed mold seat 240 .

[0066] S4: Using the follower mold base 220 to clamp and fix the bent cable straight section 901.

[0067] S5: Use the pushing mold 237 to push the bent cable straight section 901 at the middle position of the fixed mold seat 240 and the follower mold seat 220, and the pushing mold 237 pushes the cable in the U-shaped bending direction Y; at the same time, the bending pushing seat 230 will also be pushed along the cable conveying direction X.

[0068] S6: Meanwhile, the follower die holder 220 will be pushed along the cable conveying direction X at a speed twice that of the bending push seat 230.

[0069] S7: When the pushing die 237 pushes the straight section 901 of the bent cable to a predetermined position, a U-shaped bend will be formed.

[0070] S8: Repeat the steps of S1 to S7 to bend the straight cable into a bent cable 900 composed of multiple consecutive U-shaped bends.

[0071] The servo motor drives the pushing die to move through a ball screw nut drive structure, thereby bending the cable embedded on the pushing die into a U shape. This structure has the advantages of accurate pushing position, small transmission friction, high transmission efficiency, and small required pushing power. The push rod seat adopts a structure combining a tapered bearing and a flat bearing, which can not only withstand large radial loads but also large axial loads, and also has a self-aligning function.

[0072] The bending cable pushing device 300 is as Figure 9 and 10 shown, and includes: a pushing base 301, a pushing lifting guide rod 302, a pushing lifting seat 303, a pushing motor 304, a pushing gear 305, a pushing rack 306, a pushing clamp seat 307, a pushing card slot 308, a shaping fixture slot 309, a pushing lifting cylinder 310, a pushing lifting rod 311, a pushing guide rail 312, and a pushing guide slot 313. A plurality of pushing card slots 308 perpendicular to the pushing direction X are arranged at intervals on the pushing clamp seat 307. The width of the pushing card slot 308 is not less than the diameter d of the cable, and the distance between adjacent pushing card slots 308 is the same as the U-shaped bend distance L1. The bent cable 900 can be embedded in the pushing card slot 308, and the pushing assembly drives the pushing clamp seat 307 and the bent cable 900 to move along the pushing direction X. Positioning is carried out using the pushing card slot 308, making the pushing distance more accurate to ensure that the dimensions of the U-shaped bends are consistent and to ensure that the bent cable 900 can be smoothly embedded in the wire slot of the linear motor stator.

[0073] The pushing assembly can be a cylinder, a hydraulic rod, or an electric actuator that pushes the pushing clamp seat 307 to move along the pushing direction X. The pushing assembly in the embodiment of the present invention includes: a pushing base 301, a pushing lifting guide rod 302, a pushing lifting seat 303, a pushing motor 304, a pushing gear 305, a pushing rack 306, a pushing lifting cylinder 310, a pushing lifting rod 311, a pushing guide rail 312, and a pushing guide slot 313.

[0074] The lower ends of multiple vertically Z - arranged pushing and lifting guide rods 302 are fixed on the pushing base 301, and the upper ends are connected to the lower side of the pushing and lifting seat 303, jointly supporting the pushing and lifting seat 303; the pushing and lifting cylinder 310 is fixed on the pushing base 301, the pushing and lifting rod 311 of the pushing and lifting cylinder 310 is vertically arranged in the Z - direction and is connected to the pushing and lifting seat 303. The pushing and lifting cylinder 310 drives the pushing and lifting seat 303 and the pushing clamping seat 307 to move up and down in the vertical Z - direction through the pushing and lifting rod 311.

[0075] The pushing guide rail 312 is arranged on the upper side of the pushing and lifting seat 303 along the pushing direction X. The pushing gear 305 is rotationally connected to the pushing motor 304, and the pushing motor 304 is arranged on the pushing and lifting seat 303; the pushing rack 306 is arranged on one side of the pushing clamping seat 307 and meshes with the pushing gear 305; the pushing guide groove 313 is arranged on the lower side of the pushing clamping seat 307 and cooperates with the pushing guide rail 312; the pushing motor 304 drives the pushing clamping seat 307 to move back and forth in the pushing direction X through the pushing gear 305 and the pushing rack 306.

[0076] The bent cable is positioned by the pushing clamping seat with a pushing card slot and is pushed in an intermittent pushing manner. This makes the pushing distance more accurate to ensure that the dimensions of the U - shaped bend are consistent, improve the bending quality, and ensure that the bent cable can be smoothly embedded into the wire groove of the linear motor stator.

[0077] The method for pushing the bent cable of the present invention is as Figure 11 and 12 shown, and includes the following steps;

[0078] S1: Start the pushing and lifting cylinder 310 to make the pushing and lifting rod 311 extend in the vertical Z - direction, and the pushing clamping seat 307 rises in the vertical Z - direction. At this time, multiple vertically Z - arranged pushing and lifting guide rods 302 extend as the pushing clamping seat 307 rises, so that the upper side of the pushing clamping seat 307 always remains horizontal. As the pushing clamping seat 307 rises, the pushing card slot 308 will clamp the parallel section 903 of the bent cable 900 of the bent cable, shaping and positioning the bent cable 900.

[0079] S2: Start the pushing motor 304, and the pushing motor 304 drives the pushing gear 305 to rotate, pushing the pushing rack 306 in the pushing direction X. Since the pushing rack 306 is fixed on one side of the pushing clamping seat 307, the pushing clamping seat 307 drives the bent cable 900 to be pushed in the pushing direction X by a distance of two U - shaped bend pitches L1.

[0080] S3: The pushing motor 304 stops rotating, and then control the pushing and lifting cylinder 310 to make the pushing and lifting rod 311 shorten in the vertical Z - direction, the pushing clamping seat 307 descends in the vertical Z - direction, and the pushing clamping seat 307 is separated from the bent cable 900.

[0081] S4: The pushing motor 304 drives the pushing gear 305 to rotate in the reverse direction, so that the pushing card seat 307 moves 2 U-shaped bend spacings L1 in the direction opposite to the pushing direction X, and the pushing card seat 307 is retracted to its original position to prepare for the next push.

[0082] Through the above intermittent pushing method, cooperate with the U-shaped bend device 200 and the cable end shaping device 400 for bending and end shaping to manufacture qualified bent cables 900 to meet the needs of maglev dedicated line construction.

[0083] The end shaping device 400 is as Figure 13 shown, including: an end shaping device base 410, a cable clamping and fixing assembly 420, and an end shaping die 430. A plurality of cable clamping and fixing assemblies 420 are installed at intervals in the middle part of the end shaping device base 410, and the end shaping die 430 is installed on both sides of the cable clamping and fixing assembly 420. The cable clamping and fixing assembly 420 is used to clamp and fix the parallel section 902 of the bent cable of the bent cable 900 on the end shaping device base 410. The end shaping die 430 is used to clamp and push the bent section 903 of the bent cable 900 of the bent cable 900, so that the bent section 903 of the bent cable is bent to form a bent cable shaping section 904 with a three-dimensional twisted shape.

[0084] The cable clamping and fixing assembly 420 is as Figure 14 shown, including: a clamping punch 421, a clamping die 428, and a clamping lifting cylinder 429.

[0085] The clamping punch 421 is fixedly arranged on the end shaping device base 410. A clamping convex block 422 is arranged on the clamping punch 421. The top of the clamping convex block 422 is an arc-shaped groove. The radius of the arc-shaped groove of the clamping convex block is not less than half of the radius d of the bent cable to avoid damaging the cable insulation layer during the clamping process. Two parallel clamping baffle grooves 423 are arranged on both sides of the clamping convex block 422, and clamping positioning holes 424 are respectively arranged on the outer sides of the two clamping baffle grooves 423.

[0086] The clamping lifting cylinder 429 is fixedly arranged above the clamping punch 421, and the top of the telescopic rod of the clamping lifting cylinder 429 is provided with a T-shaped head. A T-shaped groove is arranged on the clamping die 428, and the clamping die 428 is installed at the lower end of the telescopic rod of the clamping lifting cylinder 429 through the cooperation of the T-shaped groove and the T-shaped head and faces the clamping punch 421. This cooperation method of the T-shaped groove and the T-shaped head is equivalent to a floating connection, which can avoid the telescopic rod of the clamping lifting cylinder 429 from bearing radial force, improve the stress condition of the clamping lifting cylinder 429, increase the service life of the clamping lifting cylinder 429, and further improve the reliability and stability of the device.

[0087] There are two parallel clamping baffles 426 arranged on the clamping female die 428, forming a clamping groove 427. The bottom of the clamping groove 427 is an arc groove, and the radius of the arc groove of the clamping groove is not less than half of the bending radius d of the cable. The width of the clamping groove is not less than the diameter d of the bent cable, and the clamping convex block 422 can be inserted into the clamping groove 427 to clamp and fix the bent cable 900. A clamping positioning pin 425 is arranged on the clamping female die 428, and the clamping positioning pin 425 faces the clamping positioning hole 424.

[0088] The bent cable is pushed into the arc groove of the clamping groove by the clamping convex block with an arc groove, so as to clamp and fix the bent cable.

[0089] During the clamping process Figure 15 As shown in the figure, first place the parallel section 902 of the bent cable 900 of the bent cable on the arc groove at the top of the clamping convex block 422, and then drive the clamping female die 428 to descend by the clamping lifting cylinder 429. During the descending process of the clamping female die 428, first, by the cooperation of the clamping positioning pin 425 and the clamping positioning hole 424, ensure the accurate alignment of the clamping punch 421 and the clamping female die 428. As the clamping female die 428 continues to descend, the clamping baffle 426 is inserted into the clamping groove 427, so as to clamp and fix the parallel section 902 of the bent cable on the base 410 of the end shaping device. When the clamping baffle 426 touches the bottom of the clamping groove 427, it can play a limiting role. By controlling the length of the clamping baffle 426, the clearance height of the arc groove between the clamping convex block 422 and the clamping groove 427 is slightly less than the diameter d of the bent cable. This can not only ensure that the parallel section 902 of the bent cable can be clamped and fixed, but also avoid flattening the bent cable 900 and prevent damage to the insulating layer.

[0090] The end shaping die for the bent cable is Figure 16 As shown in the figure, it includes: a shaping female die 431, a shaping punch 438 and a first shaping lifting cylinder 439.

[0091] A shaping groove 432 is arranged on the shaping female die 431. The shaping groove 432 is composed of a shaping female die inclined surface 433 on one side, a straight edge on the other side and an arc groove on the bottom surface. The radius of the arc groove on the bottom surface of the shaping groove is not less than half of the bending radius d of the cable. The shaping groove 432 is a three-dimensional twisted curved surface, so that the bottom of the U-shaped bend of the bent cable can form a three-dimensional twisted shape similar to the shaping groove 432 after shaping. A shaping positioning hole 435 is also arranged on the shaping female die 431, and the shaping positioning hole 435 is arranged on the end face of the shaping female die 431 facing the shaping punch 438.

[0092] The sizing punch 438 is provided with a sizing projection 437 in the shape of a square column, and the width K437 of the sizing projection is not less than the diameter d of the bent cable. An arc-shaped groove is provided at the top end of the sizing projection 437, and the radius of the arc-shaped groove at the top end of the sizing projection is not less than half of the radius d / 2 of the bent cable. To adapt to the circular cable, increase the contact area with the cable, reduce the pressure, and avoid damaging the cable insulation layer. A sizing positioning pin 436 is provided on the sizing punch 438, and the sizing positioning pin 436 is arranged on the end face of the sizing punch 438 facing the sizing die 431. During the molding process, the sizing positioning pin 436 is used in cooperation with the sizing positioning hole 435 to ensure the accurate alignment of the sizing punch 438 and the sizing die 431, and avoid damaging the cable insulation layer due to the misalignment of the sizing punch 438 and the sizing die 431.

[0093] The sizing lifting cylinder 1 439 is fixedly arranged above the sizing die 431, and a T-shaped head is arranged at the top end of the telescopic rod of the sizing lifting cylinder 1 439. A T-shaped groove is provided on the sizing punch 438, and the sizing punch 438 is installed at the top end of the telescopic rod of the sizing lifting cylinder 1 439 through the cooperation of the T-shaped groove and the T-shaped head. The sizing lifting cylinder 1 439 can drive the sizing punch 438 to move up and down towards the sizing die 431, and the sizing projection 437 can be inserted into the sizing die 431. This cooperation method of the T-shaped groove and the T-shaped head is equivalent to a floating connection, which can avoid the telescopic rod of the sizing lifting cylinder 1 439 from bearing radial force, improve the force condition of the sizing lifting cylinder 1 439, extend the service life of the sizing lifting cylinder 1 439, and thus improve the reliability and stability of the device.

[0094] The sizing die for the end of the bent cable is used to size the end of the bent cable. During installation, the bottoms of the U-shaped bends of the three-phase bent cables can be staggered in space, so that the bent cables can be smoothly inserted into the stator slots of the linear motor, thereby improving the installation quality and installation efficiency.

[0095] During the molding process as Figure 17 shown, the sizing lifting cylinder 2 440 is vertically installed with its telescopic rod facing upwards on the base 410 of the end sizing device, the sizing die 431 is installed at the top end of the telescopic rod of the sizing lifting cylinder 2 440, and the sizing lifting cylinder 2 440 drives the sizing die 431 to move up and down along the vertical direction Z. When sizing the end of the bent cable, first, the sizing lifting cylinder 1 439 drives the sizing projection 437 to descend. The arc-shaped groove at the top end of the sizing projection 437 catches the bent section 903 of the bent cable, presses the bent section 903 of the bent cable into the sizing groove 432, thereby clamping and fixing the bent section 903 of the bent cable, and molding the bent section 903 of the bent cable into a twist shape similar to the sizing groove 432.

[0096] Since the output force of the shaping lifting cylinder II 440 is greater than that of the shaping lifting cylinder I 439, the shaping lifting cylinder II 440 then pushes the shaping female die 431, the shaping male die 438, and the bent cable bending section 903 clamped between the shaping female die 431 and the shaping male die 438 to rise as a whole, causing the bent cable bending section 903 to bend upward to form a twisted bent cable shaping section 904, thereby realizing the shaping of the end of the bent cable.

[0097] The shaping of the end of the bent cable includes the following steps:

[0098] S1: Fix three adjacent parallel bent cable sections 902 of the bent cable 900 on a horizontal plane with a fixture;

[0099] S2: Clamp the bent cable bending sections 903 on both sides with a mold;

[0100] S3: Use a hydraulic cylinder to push the mold vertically, causing the cable bending section 903 clamped in the mold to displace vertically to form a three-dimensional twisted shape;

[0101] S4: Loosen the fixture and the mold, and push the bent cable 900 into the distance L1 between two U-shaped bends;

[0102] S5: Repeat the steps of S1 to S4 to shape all the bent cable bending sections 903 of the bent cable 900.

[0103] The hydraulic power unit 600 is as Figure 2 shown, placed near the end shaping device 400 of the bent cable. A diverter plate 601 is provided on the top surface of the hydraulic power unit 600, and a diverter rail 602 is provided inside the diverter plate 601. The bent cable 900 entering the diverter plate 601 is guided to the outlet one 603 or the outlet two 604 by the diverter rail 602. So as to output the bent cables 900 with different phases from different outlets for classified storage.

[0104] The hoisting sling 700 is as Figure 18 and 19 shown, including: a main beam 703, a suspension rod 706, and a pin shaft 707.

[0105] The main beam 703 is made of I-beam, and stiffeners 709 are arranged at intervals on both sides to improve the stiffness of the main beam 703. A secondary beam 702 is arranged in the middle on the upper side of the main beam 703, and the length of the secondary beam 702 is 1 / 2 to 2 / 3 of the length of the main beam 703. The secondary beam 702 is connected to the main beam 703 by welding or bolts. A variable cross-section composite beam is formed to further improve the stiffness of the middle part of the main beam 703. Two suspension rod mounting seats 704 are arranged side by side at both ends of the main beam 703 respectively. Two lifting rings 701 are symmetrically arranged on the upper side of the secondary beam 702.

[0106] The suspension rod 706 is made of I-beam with a large flexural modulus to save materials and improve stiffness. Circular shaft pin sleeves 705 are respectively arranged at both ends of the suspension rod 706, and a protective cover 708 is arranged at the shaft pin sleeve 705 at one end.

[0107] The shaft pin bolt 707 passes through the shaft pin sleeve 705 at one end of the suspension rod 706 and is detachably hinged to the suspension rod mounting seat 704. The shaft pin bolt 707 passes through the shaft pin sleeve 705 at the other end of the suspension rod 706 where the protective cover 708 is arranged and is detachably hinged to the integral base 500.

[0108] During hoisting, as Figure 20 shown, the two hooks of the crane are respectively hung on the hanging rings 701. By adjusting the lengths of the two lifting ropes, during the hoisting process, the cable bending and forming equipment always remains in a horizontal state, preventing various devices from slipping and falling, and ensuring the safety of personnel and equipment.

[0109] In summary, the beneficial effects of the present invention are as follows: The cable straightening device, U-shaped bending device, cable bending and pushing device, and cable bending end shaping device are sequentially arranged on the integral base to realize the integration and miniaturization of the linear motor stator cable bending and forming equipment, which is convenient for hoisting and transporting to the construction site, and can bend cables at the construction site, thus avoiding the problem that long bent cables are not easy to transport. This kind of cable bending and forming equipment does not need to be transported through tracks and does not occupy tracks, has low requirements for the installation site, and is applicable to various construction sites.

[0110] The above embodiments are only for illustrating the present invention, rather than limiting the present invention. Those skilled in the relevant technical fields can also make various changes or transformations without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the protection scope of the present invention, and the protection scope of the present invention should be defined by each claim.

Claims

1. A straight-line motor stator cable bending and forming equipment, characterized in that: It includes a cable straightening device (100), a U-shaped bending device (200), a bending cable pushing device (300), a bending cable end shaping device (400) and an integral base (500); the cable straightening device (100), the U-shaped bending device (200), the bending cable pushing device (300) and the bending cable end shaping device (400) are arranged in sequence on the integral base (500), and are integrally hoisted or transported through the integral base (500); the U-shaped bending device (200) includes: a bending base (210), a follower die seat (220), a bending pushing seat (230) and a fixed die seat (240); the fixed die seat (240) is fixedly installed on the bending base (210) and is used to clamp and fix the straight section (901) of the bent cable that has been bent into a U shape; the bending pushing seat (230) is slidably installed on the bending base (210) and can slide along the cable conveying direction X; a pushing die (237) is arranged on the bending pushing seat (230) and can slide along the U-shaped bending pushing direction Y; the follower die seat (220) is slidably installed on the bending base (210) and can slide along the cable conveying direction X and is used to clamp and fix the straight section (901) of the bent cable; the bending cable pushing device (300) includes a pushing clamp seat (307) and a pushing assembly, a pushing slot (308) perpendicular to the pushing direction X is arranged on the pushing clamp seat (307), the width of the pushing slot (308) is not less than the cable diameter (d), and the bent cable (900) can be embedded in the pushing slot (308), and the pushing assembly drives the pushing clamp seat (307) and the bent cable (900) to move along the pushing direction X; the bending cable end shaping device (400) includes: an end shaping device base (410), a cable clamping and fixing assembly (420) and an end shaping die (430), a plurality of cable clamping and fixing assemblies (420) are installed at intervals in the middle of the end shaping device base (410), and the end shaping die (430) is installed on both sides of the cable clamping and fixing assembly (420); the straight parallel section (902) of the bent cable (900) is clamped and fixed on the end shaping device base (410) by using the cable clamping and fixing assembly (420); the bent cable bending section (903) of the bent cable (900) is clamped and pushed by using the end shaping die (430) so that the bent cable bending section (903) is bent to form a bent cable shaping section (904) with a three-dimensional twisted shape.

2. The straight-line motor stator cable bending and forming equipment according to claim 1, characterized in that: The cable straightening device (100) includes: a cable straightening base (101), a first roller (102), a second roller (103), and a grooved wheel (104); two first rollers (102) are arranged on the cable straightening base (101) in parallel at intervals, and the distance between the two first rollers (102) is not greater than the diameter (d) of the bent cable; two second rollers (103) are arranged on the cable straightening base (101) in parallel at intervals in a direction perpendicular to the first roller (102), and the distance between the two second rollers (103) is not greater than the cable diameter (d); the two second rollers (103) are arranged behind the two first rollers (102) along the cable conveying direction X; two grooved wheels (104) are arranged at intervals on both sides of the cable (900), and during the process of the cable (900) being conveyed between the two grooved wheels (104), the grooved wheels (104) shape the cable (900).

3. The linear motor stator cable bending and forming equipment according to claim 1, characterized in that: The bending and pushing seat (230) includes: a pushing force (231), a pushing rod seat (232), a pushing rod (233), a pushing frame (234), a pushing guide rail (235), a pushing base (236), and a pushing die (237); the pushing force (231), the pushing rod seat (232), and the pushing guide rail (235) are fixedly installed on the bending base (210), the pushing rod (233) is installed on the pushing rod seat (232) in a transmission manner along the U-shaped bending pushing direction Y, the pushing frame (234) is fixed to the bottom of the pushing base (236), the pushing die (237) is fixedly installed on the pushing base (236), and the pushing force (231) drives the pushing frame (234) to move along the U-shaped bending pushing direction Y through the pushing rod (233), thereby driving the pushing base (236) and the pushing die (237) to move on the pushing guide rail (235).

4. The straight-line motor stator cable bending and forming equipment according to claim 1, characterized in that: The pushing component includes: a pushing lifting seat (303), a pushing motor (304), a pushing gear (305), a pushing rack (306), a pushing guide rail (312), and a pushing guide groove (313); the pushing guide rail (312) is arranged on the upper side of the pushing lifting seat (303) along the pushing direction X, the pushing gear (305) is rotationally connected to the pushing motor (304), and the pushing motor (304) is arranged on the pushing lifting seat (303); the pushing rack (306) is arranged on one side of the pushing clamping seat (307) and meshes with the pushing gear (305); the pushing guide groove (313) is arranged on the lower side of the pushing clamping seat (307) and cooperates with the pushing guide rail (312); the pushing motor (304) drives the pushing clamping seat (307) to move back and forth along the pushing direction X through the pushing gear (305) and the pushing rack (306).

5. The linear motor stator cable bending and forming equipment according to any one of claims 1 to 4, characterized in that: There is also a hoisting sling (700) for the linear motor stator cable bending complete equipment, including: a main beam (703), a suspension rod (706), and a pin shaft (707), and 4 suspension rods (706) are arranged at both ends of the main beam (703), one end of the suspension rod (706) is connected to the main beam (703), and the other end of the suspension rod (706) is connected to the overall base (500).

6. The straight-line motor stator cable bending and forming equipment according to claim 5, characterized in that: It further includes a hydraulic power unit (600), and the hydraulic power unit (600) provides power for the hydraulic cylinders in the straight motor stator cable bending and forming equipment.

7. The straight-line motor stator cable bending and forming equipment according to claim 6, characterized in that: The hydraulic power unit (600) is placed near the cable end shaping device (400) for bending. A diverter plate (601) is provided on the top surface of the hydraulic power unit (600). A diverter railing (602) is arranged inside the diverter plate (601). The bending cable (900) entering the diverter plate (601) is guided to the outlet one (603) or the outlet two (604) by means of the diverter railing (602).

Images