Continuous cable winding type propelling module, winding tool and magnetic suspension track system

Abstract

The invention relates to the technical field of high-speed maglev traffic, and discloses a cable continuous winding type propelling module, a winding tool and a maglev track system. Wherein the propulsion module comprises an inner centering framework, a first fixing unit, a double-cake cable type coil, a second fixing unit, a metal shielding layer and a third fixing unit, the double-cake cable type coil is formed by winding a high-voltage cable on the inner centering framework, the high-voltage cable is a high-voltage cable without an outer shield and an outer sheath, and the metal shielding layer is a metal shielding layer. The first fixing unit is arranged at the lower part of the inner centering framework, the second fixing unit is used for fixing the double-cake cable type coil on the inner centering framework, and an outgoing line of the double-cake cable type coil is provided with the metal shielding layer; and the outgoing line is fixed on the first fixing unit through the third fixing unit, and a grounding lead is led out from the third fixing unit for double-end redundancy grounding.

Description

Technical Field

[0001] The invention relates to the technical field of high-speed magnetic levitation transportation, and in particular to a cable continuous winding type propulsion module, a winding tool and a magnetic levitation track system. Background Art

[0002] The superconducting linear synchronous motor system composed of a hollow propulsion coil with active propulsion current and a superconducting magnet has the advantages of high power density, low loss and high efficiency. Combined with the superconducting electric suspension system composed of a hollow 8-shaped zero flux coil and a superconducting magnet, it has broad application prospects in high-speed and ultra-high-speed magnetic levitation rail transportation.

[0003] Superconducting linear motors used in maglev rail transit are generally in the form of long stators, that is, one section of the stator is hundreds to thousands of meters, in order to reduce the number of trackside switch cabinets and the impact of step switching on propulsion performance. For conventional three-phase motors, each phase in a single segment is composed of hundreds of propulsion coils connected in series. The higher series inductance combined with the larger propulsion current makes the propulsion coil voltage to the ground higher, generally tens of kilovolts, which requires the propulsion coil to be reliably insulated from the ground.

[0004] The superconducting linear motor used in maglev rail transit has a large number of ground stator coils, and adjacent coils need to be connected using high-voltage series wiring. The cost needs to be reduced as much as possible to enable the large-scale application of superconducting electromagnetic propulsion systems in maglev rail transit.

[0005] The existing 35kv high-voltage ground coils of superconducting linear motors used in maglev rail transit generally use insulating resin cast encapsulated winding-molded propulsion coils as a separate ground propulsion module, which are installed in sequence on the maglev track, and adjacent propulsion modules of the same phase are connected in series using high-voltage connectors. The suspension coil module is installed outside the propulsion module, close to the surface of the propulsion module as a guide.

[0006] At present, the 24kV high-voltage linear motor solution currently used in electromagnetic levitation rail transit is a linear motor with iron core wave winding used in the conventional magnetic levitation train system. The propulsion winding is directly embedded in the iron core tooth slot by a high-voltage cable without an outer sheath and external shield, and is fixed and continuously wound.

[0007] The existing linear motors used in superconducting electric suspension electromagnetic propulsion are generally in the form of centralized windings. Generally, a propulsion coil is wound with wire and then encapsulated with insulating epoxy resin to form an independent module. Each adjacent module is connected in series through a high-voltage connector. Although this method has high structural strength and reliable performance, the production process of a single module is complex and costly, and the number of serial cables and their high-voltage connectors required is large and costly. On-site installation is extremely time-consuming, and there are many electrical connection points along the entire line. The electrical connection points are the weakest part of the high-voltage circuit and are easily affected by impurities and foreign matter on the interface during installation, resulting in insulation failure of the connection points. A large number of them will increase the risk of high-voltage insulation failure of the linear motor stator.

[0008] The existing stator form used in conventional electromagnetic suspension linear motors uses a cable continuously wound stator, but its structure is an iron core wave winding form. Due to the low magnetic saturation density of the iron core, it cannot be applied to superconducting linear motor systems. Its continuous winding and fixing methods cannot be used for reference because of the different winding forms. Summary of the invention

[0009] The invention provides a cable continuous winding type propulsion module, a winding tool and a magnetic suspension track system, which can solve the technical problems in the prior art.

[0010] The present invention provides a cable continuous winding propulsion module, wherein the propulsion module includes an inner centering skeleton, a first fixing unit, a double-disk cable type coil, a second fixing unit, a metal shielding layer and a third fixing unit. The double-disk cable type coil is formed by winding a high-voltage cable on the inner centering skeleton. The high-voltage cable is a high-voltage cable without an external shield and an outer sheath. The first fixing unit is arranged at the lower part of the inner centering skeleton. The second fixing unit is used to fix the double-disk cable type coil on the inner centering skeleton. The lead-out wire of the double-disk cable type coil is provided with the metal shielding layer, and the lead-out wire is fixed to the first fixing unit through the third fixing unit and a grounding wire is led out at the third fixing unit for double-end redundant grounding.

[0011] Preferably, the second fixing unit comprises a binding strap and a binding strap pressing block, the binding strap is used to fix the double-pancake cable-type coil on the inner centering frame, and the binding strap pressing block is used to compress the binding strap.

[0012] Preferably, the high voltage cable comprises a conductor, an insulating rubber layer and a semi-conductive rubber layer arranged from inside to outside.

[0013] Preferably, the inner centering frame is made of insulating composite material.

[0014] The present invention also provides a winding tool for winding the above-mentioned cable continuous winding propulsion module, wherein the winding tool includes a tool back plate, an external centering stopper, an internal centering and clamping unit, an external centering and clamping unit and a winding machine shaft, the tool back plate is connected to the winding machine shaft and the winding machine shaft is located at the center of the tool back plate, the internal centering skeleton is arranged on the tool back plate with the winding machine shaft as the center, the external centering stopper is arranged on the tool back plate and is located at the periphery of the internal centering skeleton, the external centering stopper is used for external centering winding of the first cake of the double-cake cable type coil, and the internal centering skeleton is used for internal centering winding of the second cake of the double-cake cable type coil, the first cake and the second cake include multi-turn coils, the internal centering and clamping unit passes through the external centering stopper to compress the wound high-voltage cable inwardly, and the external centering and clamping unit passes through the internal centering skeleton to compress the wound high-voltage cable outwardly.

[0015] Preferably, the outer centering stopper is arranged on the other three horizontal edges except the lower horizontal edge and the four rounded outer edges of the tooling back plate.

[0016] Preferably, the inner centering and pressing unit and the outer centering and pressing unit are both pressing screws.

[0017] Preferably, the winding machine shaft is horizontal or vertical.

[0018] The present invention also provides a magnetic levitation track system, wherein the system includes a track side wall mounting beam, the above-mentioned cable continuous winding type propulsion module and a suspension module, the cable continuous winding type propulsion module is arranged on the track mounting interface of the track side wall mounting beam and the double-pancake cable type coil of the cable continuous winding type propulsion module directly contacts the track side wall mounting beam, the installation spacing of adjacent cable continuous winding type propulsion modules is equal to the adjacent coil spacing of the linear motor single phase, the suspension module is arranged on the track side wall mounting beam and the bottom of the suspension module is arranged on a supporting boss, the back side of the suspension module presses the surface of the inner centering skeleton and together with the track side wall mounting beam serves as the guiding, positioning and fixing surface of the cable continuous winding type propulsion module.

[0019] Preferably, the system further comprises a grounding flat steel, and the grounding wire is double-ended redundantly grounded through the grounding flat steel.

[0020] Through the above technical solution, high-voltage cables can be continuously wound into propulsion coils. Compared with conventional resin-cast propulsion modules, under the same coil winding workload, the conventional propulsion coil mica wrapping, paint curing, assembly, resin casting, and anti-corona paint spraying on the outer surface are omitted, which greatly saves production costs. In addition, the cable uses high-voltage cables without metal shielding and outer sheath, which greatly reduces the cable diameter and overall coil size, reduces the cable hardness, and improves the winding processability. Metal shielding is set for grounding at both ends of the lead wire of a single coil to form dual redundant grounding protection, which improves the grounding reliability of the high-voltage coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The included drawings are used to provide a further understanding of the embodiments of the present invention, which constitute a part of the specification, are used to illustrate the embodiments of the present invention, and together with the text description, explain the principles of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram of a cable continuous winding type propulsion module according to an embodiment of the present invention is shown;

[0023] Figure 2 A schematic diagram of a winding tool for winding a cable continuous winding type propulsion module according to an embodiment of the present invention is shown;

[0024] Figure 3 A schematic diagram of winding an outer centering coil cake of a cable continuous winding type propulsion module according to an embodiment of the present invention is shown;

[0025] Figure 4A and 4B It shows a schematic diagram of the cable continuous winding type propulsion module transposition and inner centering coil winding according to an embodiment of the present invention;

[0026] Figure 5A and 5B It shows a schematic diagram of the overall binding of a cable continuous winding type propulsion module according to an embodiment of the present invention;

[0027] Figure 6 It shows a schematic diagram of the overall continuous winding of a cable continuous winding type propulsion module according to an embodiment of the present invention;

[0028] Figure 7 A schematic diagram of a single-phase installation of a cable continuous winding type propulsion module on a magnetic levitation track according to an embodiment of the present invention is shown;

[0029] Figure 8 A schematic diagram of a magnetic levitation track system according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0033] Figure 1 A schematic diagram of a cable continuous winding type propulsion module according to an embodiment of the present invention is shown.

[0034] like Figure 1As shown, an embodiment of the present invention provides a cable continuous winding propulsion module, wherein the propulsion module includes an inner centering skeleton 14, a first fixing unit 15, a double-disk cable type coil 18, a second fixing unit, a metal shielding layer 110 and a third fixing unit 19, the double-disk cable type coil 18 is formed by winding a high-voltage cable on the inner centering skeleton 14, and the high-voltage cable is a high-voltage cable without an external shield and an outer sheath, the first fixing unit 15 is arranged at the lower part of the inner centering skeleton 14, the second fixing unit is used to fix the double-disk cable type coil 18 on the inner centering skeleton 14, the lead-out wire of the double-disk cable type coil 18 is provided with the metal shielding layer 110, and the lead-out wire is fixed to the first fixing unit 15 through the third fixing unit 19 and a grounding wire 115 is led out at the third fixing unit 19 for double-end redundant grounding.

[0035] For example, a cable can be continuously wound into multiple identical propulsion coils, and a cable with a length of a single-phase coil spacing is reserved between adjacent propulsion coils as a series cable.

[0036] Through the above technical solution, high-voltage cables can be continuously wound into propulsion coils. Compared with conventional resin-cast propulsion modules, under the same coil winding workload, the conventional propulsion coil mica wrapping, paint curing, assembly, resin casting, and anti-corona paint spraying on the outer surface are omitted, which greatly saves production costs. In addition, the cable uses high-voltage cables without metal shielding and outer sheath, which greatly reduces the cable diameter and overall coil size, reduces the cable hardness, and improves the winding processability. Metal shielding is set for grounding at both ends of the lead wire of a single coil to form dual redundant grounding protection, which improves the grounding reliability of the high-voltage coil.

[0037] According to one embodiment of the present invention, the second fixing unit includes a binding strap 113 and a binding strap pressing block 114 , wherein the binding strap 113 is used to fix the double-disc cable-type coil 18 on the inner centering frame 14 , and the binding strap pressing block 114 is used to compress the binding strap 113 .

[0038] For example, a single coil of a cable continuous winding propulsion module is a double-pancake coil structure (double-pancake cable type coil), with two coils having the same number of turns, wound on the inner frame. The two coils are tied to the frame with high-strength binding tape, and the binding tape is pressed by a binding tape block fixed on the frame to prevent it from loosening.

[0039] According to an embodiment of the present invention, the high-voltage cable includes a conductor, an insulating rubber layer and a semi-conductive rubber layer arranged from inside to outside.

[0040] According to an embodiment of the present invention, the first fixing unit is a lead-out wire fixing block. The third fixing unit is a metal cable clamp.

[0041] According to an embodiment of the present invention, the inner centering frame 14 is made of insulating composite material.

[0042] Figure 2 A schematic diagram of a winding tooling for winding a cable continuous winding type propulsion module according to an embodiment of the present invention is shown.

[0043] Figure 3 A schematic diagram of winding an outer centering coil cake of a cable continuously wound propulsion module according to an embodiment of the present invention is shown.

[0044] like Figure 2-3 As shown, an embodiment of the present invention further provides a winding tool for winding the above-mentioned cable continuous winding type propulsion module, wherein the winding tool includes a tool back plate 11, an external centering stopper 12, an internal centering clamping unit 13, an external centering clamping unit 16 and a winding machine shaft 17, the tool back plate 11 is connected to the winding machine shaft 17 and the winding machine shaft 17 is located at the center of the tool back plate 11, the internal centering frame 14 is arranged on the tool back plate 11 with the winding machine shaft 17 as the center, and the external centering stopper 12 is arranged at the The tooling back plate 11 is located on the periphery of the inner centering skeleton 14, the outer centering block 12 is used to perform external centering winding on the first cake 181 of the double-cake cable type coil 18, and the inner centering skeleton 14 is used to perform internal centering winding on the second cake of the double-cake cable type coil 18, the first cake and the second cake include multiple turns of coils, the inner centering clamping unit 13 passes through the outer centering block 12 to compress the wound high-voltage cable inwardly, and the outer centering clamping unit 16 passes through the inner centering skeleton 14 to compress the wound high-voltage cable outwardly.

[0045] According to an embodiment of the present invention, the outer centering stopper 12 is provided on the other three horizontal edges except the lower horizontal edge and the four rounded outer edges of the tooling back plate 11 .

[0046] Wherein, each horizontal side of the tooling back plate is provided with a plurality of binding belt threading grooves.

[0047] According to an embodiment of the present invention, the inner centering and pressing unit 13 and the outer centering and pressing unit 16 are both pressing screws.

[0048] The inner and outer centering compression screws can reciprocate through the bolt holes provided on the outer centering stopper and the inner centering frame to compress the cable.

[0049] For example, threaded through holes are provided on the outer centering stopper for installing the inner centering pressing screw for pressing inwards, and threaded through holes are provided on the four horizontal sides of the inner centering frame for installing the outer centering pressing screw for pressing outwards.

[0050] According to one embodiment of the present invention, the winding machine shaft is horizontal or vertical.

[0051] The following describes the winding process of the winding tooling for winding the cable continuous winding type propulsion module with an example. Figure 3-6 shown.

[0052] exist Figure 6 In the figure, reference numeral 20 indicates a cable-type propulsion coil being wound, reference numeral 22 indicates a cable-type propulsion coil that has been wound, reference numeral 11 indicates a coaxial follower back plate (tooling back plate), reference numeral 30 indicates a series connection line between adjacent propulsion coils, reference numeral 40 indicates a series connection line between adjacent propulsion coils, and reference numeral 50 indicates a cable reel.

[0053] The cable continuous winding propulsion module is in the form of a double-coil, wherein the first coil is externally centered and the second coil is internally centered, and each coil coil contains multiple turns of coils.

[0054] When the first coil of a group of continuous winding propulsion modules is wound, after reserving the length of the end-connected cable, a certain length of metal shielding tape is tied to the outer surface of the lead wire and then fixed on the lead wire fixing block. Then, the cable deflection is used to make it wind from the outside to the inside along the outer centering block. Every time it passes a horizontal edge, the outer centering clamping screw on the inner centering frame is used to clamp the cable on the outer centering block to prevent the cable from deforming during the subsequent winding process. The inner centering clamping screw installed on the outer centering block is extended to the surface of the wound cable for guiding and positioning to prevent the cable from deforming. When the second turn is wound to the clamped horizontal edge, the outer centering clamping screws of the other three horizontal edges are kept stationary, and the outer centering clamping screws at this location are loosened to allow the cable to pass through and then clamped. By analogy, the winding of the outer centering coil cake is completed.

[0055] The transposition line of the double-coil coil is located at the last turn of the outer centering winding coil, and is closely connected to the inner centering frame for transposition and lead-out, and then the inner centering frame is used as the positioning basis to wind the second coil from the inside to the outside. After each turn, the inner centering clamping screw on the outer centering block is tightened and the cable is compressed at that location until the next turn is wound to that location, and then the inner centering clamping screw at that location is loosened, and the inner centering coil is completely wound in this way;

[0056] After the inner centering coil cake is wound, the lead wire is tied with a certain length of metal shielding tape, and then fixed to the lead wire fixing block through a wire clamp, so that the double-cake coil completes the closed loop;

[0057] The double-pancake coil is initially fixed on the winding tool by using a tie tie 111 through a tie tie threading hole 112 preset on each horizontal side of the tool to tie the double-pancake coil together with the inner centering frame and the lead-out wire fixing block;

[0058] Release the bolt connection between the inner centering frame and the lead wire fixing block and the back plate of the winding tooling, take out the cable coil, inner frame, and lead wire fixing block as a whole, and then remove the outer centering pressing screw on the inner centering frame to form a complete single cable-type propulsion coil (module);

[0059] Use high-strength binding tape to securely bind the coil horizontal edge and the inner centering frame, and then cut off the binding fixing tape to make the surface of the cable-type coil flat. Use the bolt hole to fix the binding tape pressure block through the original outer centering compression screw at the horizontal edge of the inner frame, apply compression force to the binding tape to prevent the binding tape from loosening after long-term use, and form the final complete cable-type propulsion coil product.

[0060] After the first propulsion coil is removed from the winding tooling, its lead wire reserves the length of the single-phase adjacent coil distance, and the inner centering frame and lead wire fixing block of the second coil are installed on the winding tooling. The first coil is fixed on the same winding shaft again and moves with the winding tooling. The second and third cable-type coils can be wound in the same way.

[0061] According to this winding method, in theory, an unlimited number of propulsion coils can be wound continuously, but their number is mainly limited by the length of the winding machine shaft and its load-bearing capacity, because all wound coils need to be fixed on the same winding shaft for follow-up.

[0062] In other words, when winding, leave a set length of 30 for the cable series connection (adjacent propulsion coil series connection), then wrap one section with a conductive metal shielding layer and make a reliable electrical connection with the grounding wire, and then fix it to the lead-out wire fixing block on the tooling plate through a metal wire clamp; use the four horizontal sides and four corners of the external centering block as a limit, and wind the external centering coil cake from the outside to the inside. After each turn, the external centering clamping screw on the internal centering frame will be rotated outward to tighten the cable, and the internal centering screw on the external centering block will be screwed outward to tighten the cable. The centering screw is screwed inwards to press on the wound cable to serve as a guide limit. The outer centering clamping screw and the inner centering clamping screw are pressed and limited in sequence from the outside to the inside as the cable is wound. After the outer centering coil cake 181 is wound, a transposed S-bend 182 is drawn from the innermost side close to the inner centering frame to the inner centering winding coil disease 183. The coil layer is wound from the inside to the outside with the inner centering frame as the size positioning. For each layer wound, the inner centering clamping screws on the four horizontal sides and the four corners of the outer centering limit blocks are pressed and limited in sequence. The tightening screw will then follow up and press the wound coil until the layer of coil is completed; after the inner centering coil cake is completed, its lead wire is also wrapped with a metal shielding layer and a grounding wire, and then fixed to the lead wire fixing clamp through a wire clamp; after the double-cake coil is completed, the double-cake coil is completely tied to the inner skeleton through the through-hole for threading the tie band on the back plate of the tooling to perform preliminary shaping, and then the bolt connection between the inner centering skeleton, the lead wire fixing block and the back plate of the winding tooling is released, and the finished coil is taken out; for the finished coil after demolding, first use high-strength binding tape to tie the horizontal edges of the coil, and then cut off the tie band to ensure that the surface of the coil and the tie band is flat; install the completed single cable-type propulsion coil on the coaxial follow-up back plate and fix it on the winding machine shaft, and then install the winding tooling on the winding machine shaft, and wind the second cable-wound propulsion coil, leaving a series cable length between the two coils to meet the phase-to-phase coil spacing, and use the same method to wind the second coil. The maximum number of coils that can be continuously wound is set according to the load capacity of the winding machine shaft. After a set of continuously wound propulsion coils is completely wound, they are first all removed from the winding machine shaft, and then the coaxial follower back plate is disassembled to obtain a set of continuously wound cable-type propulsion coils.

[0063] By winding the propulsion coil in the above manner, the inner and outer centering coil cakes have reliable shaping boundaries and clamping devices during the winding process, and the clamping device and the coil winding are followed, and a continuous and uninterrupted clamping and fixing force can be applied to the coil during winding, ensuring the dimensional accuracy of the coil forming and the tight contact between the coil turns, avoiding large gaps between the turns after winding and thus loosening and deformation after demolding.

[0064] like Figure 7 and 8As shown, an embodiment of the present invention further provides a magnetic levitation track system, wherein the system includes a track side wall mounting beam, the above-mentioned cable continuous winding type propulsion module 1 and a suspension module 5, the cable continuous winding type propulsion module is arranged on the track mounting interface 2 of the track side wall mounting beam and the double-pancake cable type coil of the cable continuous winding type propulsion module directly contacts the track side wall mounting beam, the installation spacing of adjacent cable continuous winding type propulsion modules is equal to the adjacent coil spacing of the linear motor single phase, the suspension module is arranged on the track side wall mounting beam and the bottom of the suspension module is arranged on the supporting boss, the back side of the suspension module presses the surface of the inner centering skeleton together with the track side wall mounting beam as the guide positioning and fixing surface of the cable continuous winding type propulsion module (thereby, the guide displacement vibration of the propulsion coil can be prevented when it is subjected to electric force).

[0065] The inner centering frame is provided with bolt fixing holes corresponding to the track mounting interface, and the track mounting interface and the bolt fixing holes are connected by bolts to realize the fixing of the inner centering frame on the track side wall mounting beam (that is, the propulsion module is fixed to the side wall mounting beam by bolts). The adjacent cable continuous winding type propulsion module can be a group of propulsion coils (modules) continuously wound by a cable.

[0066] A set of continuously wound propulsion modules is electrically connected and insulated with the next set of continuously wound propulsion modules in the same phase using high voltage cable connection accessories.

[0067] According to an embodiment of the present invention, the system further comprises a grounding flat steel 4 , and the grounding wire is double-ended redundantly grounded through the grounding flat steel 4 .

[0068] Specifically, two grounding wires led out from the two lead wire metal shielding layers of each coil of a group of continuously wound propulsion modules are connected to the grounding flat steel at the bottom of the track for double-end redundant grounding.

[0069] In addition, the three-phase cable series connection is reliably fixed to the cable crossing point in the cable trench by the cable bracket 3 to prevent the series connection point from being displaced and vibrated by the electric force.

[0070] In the present invention, the cable conductor and insulator are coaxial circles, the electric field is evenly distributed, and the insulation thickness is small. Compared with the resin cast propulsion module, the insulation thickness of the conductor to the ground can be greatly reduced and the insulation reliability can be improved.

[0071] The following describes the arrangement of the cable continuous winding propulsion module on the superconducting electric suspension-electromagnetic propulsion type magnetic suspension track with reference to an example.

[0072] A group of continuous winding propulsion modules are uniformly installed in one phase of the motor stator, and the interval between adjacent propulsion modules is equal to the coil pitch of one phase of the stator; the propulsion module is connected to the track installation interface through the inner centering frame bolts, and the cable coil directly contacts the track installation surface; the two grounding wires at the lead-out line of the propulsion module are connected to the pre-buried grounding flat steel on both sides of the track to achieve redundant grounding; the series cables between adjacent propulsion coils are lifted and fixed by cable fixing brackets; after all cable-type propulsion modules are installed, the suspension module and the hinged cables 6 connected by hinges on both sides are installed in turn. The back of the suspension module presses the inner centering frame and applies a certain pre-pressure to the double-pancake cable coil at the same time, ensuring that the cable coil does not cause displacement vibration when bearing the propulsion force.

[0073] It can be seen from the above embodiments that the present invention has at least the following advantages compared with the prior art:

[0074] 1) The propulsion coil and winding tooling described in the present invention have the advantages of easy continuous winding and low production cost. Compared with the existing resin casting module, the number of high-voltage connectors used can be reduced by several times, thereby reducing costs.

[0075] 2) The present invention provides a superconducting electric suspension-electromagnetic propulsion magnetic suspension track system based on the above cable-wound propulsion module, including a track interface and a propulsion module and a suspension module installed thereon. Compared with the existing solution, the number of electrical connection points on the line can be greatly reduced, and the man-hours required for installing electrical connectors on the line can be reduced, while improving the application cost-effectiveness and insulation safety. Compared with the conventional resin-cast propulsion module, the cable-type propulsion coil skeleton can also provide precise and high-strength guiding and positioning support for the suspension module, without affecting the installation and positioning of the suspension module.

[0076] 3) The cable continuous winding propulsion module can generally wind 5-10 coils continuously as a group within the load capacity of general production equipment. Compared with the conventional resin cast propulsion module, it saves 5-10 times the amount of high-voltage cable connectors and the corresponding number of electrical connection points, greatly reducing the additional production cost and online installation cost introduced by the connector. At the same time, it reduces the probability of insulation failure caused by insulation weak points on the connection surface caused by foreign matter and impurities when the electrical connector is installed online, thereby improving the safety and reliability of the entire system.

[0077] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0078] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0079] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cable continuous winding type propulsion module, characterized in that: The propulsion module comprises an inner centering frame (14), a first fixing unit (15), a double-pancake cable type coil (18), a second fixing unit, a metal shielding layer (110) and a third fixing unit (19); the double-pancake cable type coil (18) is formed by winding a high-voltage cable on the inner centering frame (14); the high-voltage cable is a high-voltage cable without an outer shield and an outer sheath; the first fixing unit (15) is arranged at the lower part of the inner centering frame (14); the second fixing unit is used to fix the double-pancake cable type coil (18) on the inner centering frame (14); the lead-out wire of the double-pancake cable type coil (18) is provided with the metal shielding layer (110); and the lead-out wire is fixed to the first fixing unit (15) through the third fixing unit (19) and a grounding wire (115) is led out at the third fixing unit (19) for double-end redundant grounding.

2. The propulsion module according to claim 1, characterized in that: The second fixing unit comprises a binding strap (113) and a binding strap pressing block (114); the binding strap (113) is used to fix the double-disc cable-type coil (18) on the inner centering frame (14); and the binding strap pressing block (114) is used to compress the binding strap (113).

3. The propulsion module according to claim 2, characterized in that: The high-voltage cable comprises a conductor, an insulating rubber layer and a semi-conductive rubber layer which are arranged from inside to outside.

4. The propulsion module according to claim 1, characterized in that: The inner centering frame (14) is made of insulating composite material.

5. A winding tool for winding the cable continuous winding type propulsion module according to any one of claims 1 to 4, characterized in that: The winding tool comprises a tool back plate (11), an external centering stopper (12), an internal centering clamping unit (13), an external centering clamping unit (16) and a winding machine shaft (17); the tool back plate (11) is connected to the winding machine shaft (17) and the winding machine shaft (17) is located at the center of the tool back plate (11); the internal centering frame (14) is arranged on the tool back plate (11) with the winding machine shaft (17) as the center; the external centering stopper (12) is arranged on the tool back plate (11) and is located at the internal centering frame (14). The outer periphery of the centering frame (14) is used for external centering winding of the first coil of the double-coil cable type coil (18), and the inner centering frame (14) is used for internal centering winding of the second coil of the double-coil cable type coil (18), the first coil and the second coil comprise multiple turns of coils, the inner centering clamping unit (13) passes through the outer centering block (12) and is used for clamping the wound high-voltage cable inwardly, and the outer centering clamping unit (16) passes through the inner centering frame (14) and is used for clamping the wound high-voltage cable outwardly.

6. The winding tool according to claim 5, characterized in that: The outer centering stopper (12) is arranged on the other three horizontal edges except the lower horizontal edge and the four rounded outer edges of the tooling back plate (11).

7. The winding tool according to claim 6, characterized in that: The inner centering and pressing unit (13) and the outer centering and pressing unit (16) are both pressing screws.

8. The winding tool according to claim 6, characterized in that: The winding machine shaft is horizontal or vertical.

9. A magnetic levitation track system, characterized in that: The system includes a track side wall mounting beam, a cable continuous winding propulsion module according to any one of claims 1 to 4, and a suspension module. The cable continuous winding propulsion module is arranged on the track mounting interface of the track side wall mounting beam and the double-pancake cable-type coil of the cable continuous winding propulsion module directly contacts the track side wall mounting beam. The installation spacing of adjacent cable continuous winding propulsion modules is equal to the adjacent coil spacing of the linear motor single-phase. The suspension module is arranged on the track side wall mounting beam and the bottom of the suspension module is arranged on a supporting boss. The back side of the suspension module presses the surface of the inner centering skeleton and together with the track side wall mounting beam serves as the guiding, positioning and fixing surface of the cable continuous winding propulsion module.

10. The system according to claim 9, characterized in that The system further comprises a grounding flat steel, through which the grounding wire is double-ended redundantly grounded.

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