Cable continuous winding type propulsion module, winding tool and magnetic suspension track system

Abstract

The application relates to the technical field of high-speed magnetic suspension transportation, and discloses a cable continuous winding type propulsion module, a winding tool and a magnetic suspension track system. 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 external shielding and without an external sheath. 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. The outgoing line of the double-cake cable type coil is provided with the metal shielding layer. The outgoing line is fixed on the first fixing unit through the third fixing unit and is led out at the third fixing unit to perform double-end redundant grounding through a grounding wire.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of high-speed magnetic suspension transportation, and in particular to a cable continuous winding type propulsion module, a winding tool and a magnetic suspension rail system. BACKGROUND

[0002] A superconducting linear synchronous motor system composed of a hollow propulsion coil into which a driving propulsion current is passed and a superconducting magnet has the advantages of high power density, small loss and high efficiency, and a superconducting motor suspension system composed of a hollow 8-shaped zero flux coil and a superconducting magnet has broad application prospects in high-speed and super-high-speed magnetic suspension rail transportation.

[0003] The superconducting linear motor applied to the magnetic suspension rail transportation is generally in the form of a long stator, that is, a section of stator is hundreds to thousands of meters long, so as to reduce the number of trackside switch cabinets and the influence of step switching on propulsion performance. For a conventional three-phase motor, each phase in a single section is composed of hundreds of propulsion coils connected in series, and the combination of the high series inductance and the large propulsion current makes the ground voltage of the propulsion coil high, generally tens of kilovolts, and the propulsion coil needs reliable ground insulation.

[0004] The superconducting linear motor applied to the magnetic suspension rail transportation has a large number of ground stator coils, and high-voltage series connection lines need to be used between adjacent coils, so as to reduce the cost as much as possible, so that the superconducting electromagnetic propulsion system can be widely applied to the magnetic suspension rail transportation.

[0005] At present, the existing superconducting linear motor of 35kv high-voltage grade applied to the magnetic suspension rail transportation generally uses an insulation resin pouring and packaging winding type propulsion coil as a single ground propulsion module, which is installed in sequence on the magnetic suspension rail, and the same-phase adjacent propulsion modules are connected in series by using high-voltage connectors. The suspension coil module is installed on the outside of the propulsion module and closely contacts the surface of the propulsion module as a guide positioning.

[0006] At present, the 24kv high-voltage linear motor scheme applied to the electromagnetic suspension rail transportation in China is a core wave winding linear motor used in the conventional magnetic suspension train system, and the propulsion winding is directly fixed and continuously wound in the core tooth slot by embedding a high-voltage cable without an outer sheath and an outer shield.

[0007] The existing linear motor applied to superconducting electric suspension electromagnetic propulsion is generally in the form of concentrated winding, and generally, one propulsion coil is wound by using a wire and then encapsulated into an independent module by using insulating epoxy resin, and each phase is connected in series by high-voltage connectors. Although this method has high structural strength and reliable performance, the production process of a single module is complex and the cost is high, and the number of required series connection cables and high-voltage connectors is large, the cost is high, the on-site installation is extremely time-consuming, and there are many electric connection points in the whole line, the electric connection point is the weakest part in the high-voltage loop, which is easily affected by impurities and foreign matters on the interface during installation to cause insulation failure of the connection point, and the large number of electric connection points will increase the risk of high-voltage insulation failure of the stator of the linear motor.

[0008] The existing stator in the form of continuous winding of cables is applied to the conventional magnetic suspension linear motor, but the structure is in the form of a core wave winding, and due to the low magnetic saturation density of the core, it cannot be applied to the superconducting linear motor system, and the continuous winding and fixing method of the winding cannot be applied due to the difference in winding form. SUMMARY

[0009] The application 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 application provides a cable continuous winding type propulsion module, wherein the propulsion module comprises an inner centering framework, a first fixing unit, a double-pie cable type coil, a second fixing unit, a metal shielding layer and a third fixing unit, the double-pie 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 external shielding and without external sheath, 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-pie cable type coil on the inner centering framework, the lead-out wire of the double-pie cable type coil is provided with the metal shielding layer, and the lead-out wire is fixed on the first fixing unit through the third fixing unit and leads out a grounding wire at the third fixing unit for double-end redundant grounding.

[0011] Preferably, the second fixing unit comprises a binding belt and a binding belt pressing block, the binding belt is used for fixing the double-pie cable type coil on the inner centering framework, and the binding belt pressing block is used for pressing the binding belt.

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

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

[0014] The application also provides a winding tool for winding the cable continuous winding type propulsion module, wherein the winding tool comprises a tool back plate, an outer centering stopper, an inner centering pressing unit, an outer centering pressing unit and a winding machine shaft, the tool back plate is connected with the winding machine shaft and the winding machine shaft is located at the center position of the tool back plate, the inner centering framework is arranged on the tool back plate with the winding machine shaft as the center, the outer centering stopper is arranged on the tool back plate and located at the periphery of the inner centering framework, the outer centering stopper is used for outer centering winding of the first cake of the double-cake cable type coil, the inner centering framework is used for inner centering winding of the second cake of the double-cake cable type coil, the first cake and the second cake comprise a plurality of turns of coils, the inner centering pressing unit passes through the outer centering stopper and is used for inward pressing of the wound high-voltage cable, and the outer centering pressing unit passes through the inner centering framework and is used for outward pressing of the wound high-voltage cable.

[0015] Preferably, the outer centering stopper is arranged on the tool back plate outside the other three horizontal edges and the four circular corner boundaries except the lower horizontal edge.

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

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

[0018] The application also provides a magnetic suspension track system, wherein the system comprises a track side wall mounting beam, the 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-cake 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 a single-phase coil of a linear motor, the suspension module is arranged on the track side wall mounting beam and the bottom of the suspension module is arranged on a support boss, the back of the suspension module presses the inner centering framework surface together with the track side wall mounting beam to serve as a guide 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-endedly and redundantly grounded through the grounding flat steel.

[0020] By the technical scheme, the high-voltage cable is continuously wound to form the propulsion coil, compared with the conventional resin pouring propulsion module, under the condition of the same coil winding workload, a plurality of processes such as conventional propulsion coil mica wrapping, paint immersion curing, assembly, resin pouring, and outer surface anti-halo paint spraying are omitted, and the production cost is greatly saved. Moreover, the cable uses a high-voltage cable without metal shielding and outer sheath, greatly reduces the cable diameter and the overall coil size, reduces the cable hardness, and improves the winding process. The metal shielding ground is arranged at both ends of the single coil, double redundant ground protection is formed, and the high-voltage coil ground reliability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings included to provide a further understanding of the embodiments of the application and constitute a part of the specification, illustrate the embodiments of the application and together with the text description serve to explain the principles of the application. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

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

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

[0025] Figure 4A And 4B A schematic diagram of transposition and inner centering coil cake winding of a cable continuous winding type propulsion module according to an embodiment of the application is shown;

[0026] Figure 5A And 5B A schematic diagram of overall binding of a cable continuous winding type propulsion module according to an embodiment of the application is shown;

[0027] Figure 6 A schematic diagram of overall continuous winding of a cable continuous winding type propulsion module according to an embodiment of the application is shown;

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

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

[0030] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

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

[0032] Unless specifically stated otherwise, the relative arrangements of the components and steps illustrated in these embodiments and the numerical expressions and values set forth herein are not limiting of the scope of the present application. It should be understood that the various parts of the drawings are not necessarily drawn to scale, and that, for the purpose of convenience and clarity, not all components can be shown in a given figure. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail, but are to be considered as part of the description of the present application. In all examples shown and discussed herein, any specific values should be interpreted as merely illustrative and not as a limitation on the scope of the exemplary embodiments. Thus, other example embodiments of the exemplary embodiments can have different values. It is noted that like references and labels can be used to denote like items throughout the drawings, and that, once an item is defined in one drawing, it need not be further discussed in the subsequent drawings.

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

[0034] As Figure 1As shown, the cable continuous winding type propulsion module provided by the embodiment of the present application comprises an inner centering framework 14, a first fixing unit 15, a double-deck cable type coil 18, a second fixing unit, a metal shielding layer 110 and a third fixing unit 19. The double-deck cable type coil 18 is wound on the inner centering framework 14 by using high-voltage cable. The high-voltage cable is a high-voltage cable without outer shielding and outer sheath. The first fixing unit 15 is arranged at the lower part of the inner centering framework 14. The second fixing unit is used for fixing the double-deck cable type coil 18 on the inner centering framework 14. The outgoing line of the double-deck cable type coil 18 is provided with the metal shielding layer 110. The outgoing line is fixed on the first fixing unit 15 through the third fixing unit 19 and the outgoing line is led out at the third fixing unit 19 to form double-end redundant grounding through the grounding wire 115.

[0035] For example, one cable can be continuously wound to form multiple same propulsion coils. The cable with a length of one single-phase coil pitch is reserved between adjacent propulsion coils as a series cable.

[0036] By using the above technical solution, the high-voltage cable can be continuously wound to form the propulsion coil. Compared with the conventional resin pouring propulsion module, under the condition of the same coil winding workload, multiple processes such as conventional propulsion coil mica wrapping, paint immersion and curing, assembly, resin pouring and outer surface anti-halo paint spraying are omitted, so that the production cost is greatly saved. Moreover, the cable uses the high-voltage cable without metal shielding and outer sheath, so that the cable diameter and the overall coil size are greatly reduced, the cable hardness is reduced, and the winding process is improved. The metal shielding grounding is arranged at both ends of the single coil to form double redundant grounding protection, so that the grounding reliability of the high-voltage coil is improved.

[0037] According to an embodiment of the present application, the second fixing unit comprises a binding belt 113 and a binding belt pressing block 114. The binding belt 113 is used for fixing the double-deck cable type coil 18 on the inner centering framework 14. The binding belt pressing block 114 is used for pressing the binding belt 113.

[0038] For example, the single coil of the cable continuous winding type propulsion module is a double-deck coil structure (double-deck cable type coil). The two coil turns have the same number of turns and are wound on the inner framework. The two coil turns are bound on the framework by high-strength binding adhesive tape and the binding adhesive tape is pressed by the binding belt pressing block fixed on the framework to prevent loosening.

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

[0040] According to an embodiment of the present application, the first fixing unit is an outgoing line fixing block. The third fixing unit is a metal cable clamp.

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

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

[0043] Figure 3 A schematic diagram of the outer centering coil cake winding of the cable continuous winding type propulsion module according to an embodiment of the present application is shown.

[0044] As shown in Figures 2-3 the present application further provides a winding tool for winding the above-mentioned cable continuous winding type propulsion module, wherein the winding tool comprises a tool back plate 11, an outer centering stop block 12, an inner centering pressing unit 13, an outer centering pressing unit 16 and a winding machine shaft 17, the tool back plate 11 is connected with the winding machine shaft 17 and the winding machine shaft 17 is located at the center position of the tool back plate 11, the inner centering framework 14 is arranged on the tool back plate 11 with the winding machine shaft 17 as the center, the outer centering stop block 12 is arranged on the tool back plate 11 and located at the periphery of the inner centering framework 14, the outer centering stop block 12 is used for outer centering winding of the first cake 181 of the double cake cable type coil 18, the inner centering framework 14 is used for inner centering winding of the second cake of the double cake cable type coil 18, the first cake and the second cake comprise multiple turns of coils, the inner centering pressing unit 13 passes through the outer centering stop block 12 and is used for inward pressing of the wound high-voltage cable, and the outer centering pressing unit 16 passes through the inner centering framework 14 and is used for outward pressing of the wound high-voltage cable.

[0045] According to an embodiment of the present application, the outer centering stop block 12 is arranged on the tool back plate 11 outside the other three horizontal edges and the four rounded corner outer boundaries except the lower horizontal edge.

[0046] Each horizontal edge of the tool back plate is provided with a plurality of binding belt threading grooves.

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

[0048] The inner and outer centering pressing screws can reciprocate through the bolt holes arranged on the outer centering stop block and the inner centering framework to press the cable.

[0049] For example, the outer centering stop block is provided with threaded through holes for mounting the inwardly pressing inner centering pressing screw, and the four horizontal edges of the inner centering framework are provided with threaded through holes for mounting the outwardly pressing outer centering pressing screw.

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

[0051] The winding process of the winding tool for the continuous winding type propulsion module of the cable is described below in conjunction with examples, as shown in Figures 3-6

[0052] In Figure 6 , the reference numeral 20 represents the cable type propulsion coil being wound, the reference numeral 22 represents the completed cable type propulsion coil, the reference numeral 11 represents the coaxial follow-up back plate (tool back plate), the reference numeral 30 represents the adjacent propulsion coil stringing cable, the reference numeral 40 represents the adjacent propulsion coil stringing cable, and the reference numeral 50 represents the cable reel.

[0053] The continuous winding type propulsion module of the cable is in the form of a double pancake coil, wherein the first pancake is wound with outer centering, and the second pancake is wound with inner centering, and each coil pancake contains multiple turns of coils.

[0054] When the first coil of a set of continuous winding propulsion modules is wound, after reserving the end portion stringing cable length, the lead wire outer surface is bound with a certain length of metal shielding tape and then fixed on the lead-out wire fixing block, and then the cable deflection is used to wind it from the outside to the inside along the outer centering stop block, and every time a cross edge is passed, the outer centering compression screw on the inner centering skeleton is used to compress the cable on the outer centering stop block to prevent the cable from deforming during the subsequent winding process, and the inner centering compression screw installed on the outer centering stop block is extended to the surface of the wound cable for positioning and preventing the cable from deforming; when the second turn is wound to the compressed cross edge, the outer centering compression screws of the other three cross edges are kept stationary, the outer centering compression screw at this position is loosened, the cable passes through, and then it is compressed again, and so on to complete the winding of the entire outer centering coil pancake;

[0055] The transposition wire of the double pancake coil is located at the last turn of the outer centering wound coil, closely transposed to the inner centering skeleton, and then wound from the inside to the outside of the second coil pancake based on the inner centering skeleton as the positioning basis. Every turn is wound, the inner centering compression screw on the outer centering stop block is tightened and the cable at this position is compressed, and then the inner centering compression screw at this position is loosened when the next turn is wound to this position, and so on to complete the winding of the entire inner centering coil pancake;

[0056] After the inner centering coil pancake is completed, the lead-out wire is bound with a certain length of metal shielding tape, and then fixed on the lead-out wire fixing block through the wire clamp to complete the closed loop of the double pancake coil;

[0057] The double pancake coil is preliminarily fixed on the winding tool by using the binding tape 111 to pass through the binding tape through hole 112 preset on each cross edge of the tool to bind the double pancake coil together with the inner centering skeleton and the lead-out wire fixing block.

[0058] ​The bolt connection between the inner core skeleton and the outgoing line fixing block and the back plate of the winding tool is released, the cable coil, the inner core skeleton and the outgoing line fixing block are taken out as a whole, then the outer centering compression screw rod on the inner core skeleton is removed, and a complete single cable type propulsion coil (module) is formed;

[0059] The coil transverse edge and the inner core skeleton are reliably bound using high-strength binding tape, then the binding fixing tape is cut off, the surface of the cable type coil is smooth. The binding tape pressing block is fixed at the transverse edge of the inner core skeleton through the original outer centering compression screw rod and the bolt hole, the binding tape is compressed to prevent the binding tape from loosening during long-term use, and the final complete cable type propulsion coil product is formed.

[0060] The outgoing line of the first propulsion coil is reserved with a single-phase adjacent coil distance length after the winding tool is removed, the inner core skeleton and the outgoing line fixing block of the second coil are installed on the winding tool, the first coil is fixed on the same winding shaft and follows the winding tool again, and the winding of the second and third cable type coils can be completed in the same way.

[0061] According to the winding mode, theoretically, an unlimited number of propulsion coils can be continuously wound, but the number is mainly limited by the length and carrying capacity of the winding machine shaft, because all the wound coils need to be fixed on the same winding shaft for following.

[0062] In other words, when winding, the cable is left out of the set stringer (adjacent push coil stringer) 30 length, one of the outer conductive metal shielding layer and the ground wire is reliably electrically connected, and then the outgoing line fixing block fixed on the tool plate through the metal wire clamp; With four horizontal edges and four corners of the outer centering block as the limit, the outer centering coil cake is wound from the outside to the inside, and every time a turn is wound, the outer centering compression screw on the inner centering skeleton is rotated outward to press the cable tightly, and the inner centering screw on the outer centering block is rotated inward to press on the wound cable to guide and limit. The outer centering compression screw and the inner centering compression screw follow the cable winding from the outside to the inside and sequentially follow the compression and limiting; After the outer centering coil cake 181 is completed, the transposition S bend 182 is led out from the innermost side close to the inner centering skeleton to the inner centering winding coil cake 183, and the inner centering skeleton is sequentially wound from the inside to the outside as the size positioning. Every time a layer is wound, the inner centering compression screw on the four horizontal edges and four corners of the outer centering limiting block follows the movement to compress the wound coil until the winding of the layer is completed. After the inner centering coil cake is completed, the outgoing line is also wrapped with the metal shielding layer and the ground wire, and then fixed on the outgoing line fixing clamp through the wire clamp. After the double-coil coil is completed, the double-coil coil and the inner skeleton are completely bound and preliminarily shaped through the through binding belt hole on the tool back plate, and then the bolt connection between the inner centering skeleton, the outgoing line fixing block and the winding tool back plate is released, and the coil product is taken out. For the coil product after the mold is removed, first use high-strength binding tape to bind the coil horizontal edge, then cut off the binding tape, and ensure that the surface of the coil and the binding belt is smooth. Install the completed single cable type push coil on the coaxial follow-up back plate and fix it on the winding machine shaft, then install the winding tool on the winding machine shaft, and wind the second cable winding type push coil. The length of the stringer cable between the two coils is reserved to meet the interphase coil distance, and the same method is used for the second coil winding. According to the bearing capacity of the winding machine shaft, the maximum number of continuously wound coils is set. After a group of continuously wound push coils are completed, they are first removed from the winding machine shaft, and then the coaxial follow-up back plate is disassembled, and a group of continuously wound cable type push coils are obtained.

[0063] The push coil is wound in the above-mentioned manner. The inner and outer centering coil cakes have reliable shaping boundaries and compression devices during winding, and the compression devices follow the winding of the coil to apply continuous and uninterrupted compression and fixing force during winding, ensuring the size accuracy of the coil formation and the close contact between the turns of the coil, and avoiding large gaps between the turns after winding and then loosening and deforming after the mold is removed.

[0064] As Figure 7 and 8As shown, the embodiment of the application also provides a magnetic levitation track system, wherein the system comprises a track side wall mounting beam, the above-mentioned cable continuous winding type propulsion module 1 and a levitation 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-pie 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 a single-phase coil of a linear motor, and the levitation module is arranged on the track side wall mounting beam and the bottom of the levitation module is arranged on a supporting boss, and the back of the levitation module is pressed against the surface of the inner centering framework together with the track side wall mounting beam to serve as a guide positioning fixing surface of the cable continuous winding type propulsion module (thereby, guide displacement vibration of the propulsion coil under electric power can be prevented).

[0065] The inner centering framework is fixed on the track side wall mounting beam through bolt cooperation connection of the track mounting interface and the bolt fixing hole, i.e., the propulsion module is fixed on the side wall mounting beam through bolts.

[0066] A group of continuous winding type propulsion modules and the next group of continuous winding type propulsion modules with the same phase are electrically connected and insulated through a high-voltage cable connection accessory.

[0067] According to an embodiment of the application, the system further comprises a grounding flat steel 4, and the grounding wires are double-end redundantly grounded through the grounding flat steel 4.

[0068] Specifically, two grounding wires drawn from the metal shielding layer of each coil of a group of continuous winding type 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 wires are reliably fixed at the cable cross points in the cable trench through the cable support 3 to prevent displacement vibration of the series connection point under electric power.

[0070] In the application, the cable conductor and the insulator are coaxial and circular, the electric field is uniformly distributed, and the insulator thickness is small, so that the conductor-to-ground insulator thickness can be greatly reduced and the insulator reliability can be improved compared with the resin pouring type propulsion module.

[0071] The arrangement of the cable continuous winding type propulsion module on the superconducting electric suspension- electromagnetic propulsion type magnetic levitation track will be described below in combination with examples.

[0072] A set of continuous winding type propulsion modules are uniformly installed in one phase of the motor stator, the interval between adjacent propulsion modules is equal to the coil pitch of the stator; the propulsion modules are bolted to the track mounting interface through the inner centering framework, the cable coil directly contacts the track mounting surface; two ground wires at the lead-out line of the propulsion module are connected to the pre-buried ground flat steel on both sides of the track to realize redundant grounding; the series cables between adjacent propulsion coils are fixed by the cable fixing bracket; after all the cable type propulsion modules are installed, the suspension module and the hinge cable 6 connected by the hinge on both sides are installed in sequence. The suspension module presses the inner centering framework from the back, and at the same time, a certain pre-pressure is applied to the double-cable coil, so as to ensure that the cable coil does not displace and vibrate when bearing the propulsion force.

[0073] As can be seen from the above embodiments, the present application has at least the following advantages compared with the prior art:

[0074] 1) The propulsion coil and the winding tool described in the present application have the advantages of easy continuous winding and low production cost, and can reduce the number of high-voltage connectors by several times compared with the existing resin pouring type module, thereby reducing the cost.

[0075] 2) The present application provides a superconducting electric suspension-electromagnetic propulsion magnetic levitation track system based on the above cable winding type propulsion module, which comprises a track interface and the propulsion module and the suspension module installed thereon. Compared with the existing scheme, the number of on-line electrical connection points can be greatly reduced, the working hours required for installing electrical connectors on the line can be reduced, the cost performance and insulation safety can be improved, and compared with the conventional resin pouring propulsion module, the cable type propulsion coil framework can also provide precise 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 type propulsion module can generally be continuously wound into a group of 5-10 coils within the load capacity range of general production equipment, compared with the conventional resin pouring propulsion module, the use amount of high-voltage cable connectors and the corresponding number of electrical connection points are saved by 5-10 times, the additional production cost and on-line installation cost introduced by the connectors are greatly reduced, the insulation failure probability caused by the insulation weak points on the connection surface caused by foreign matter and impurities during on-line installation of the electrical connectors is also greatly reduced, and the safety and reliability of the whole system are improved.

[0077] In the description of the application, it should be understood that the orientation words such as "front, back, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship are generally based on the orientation or position relationship shown in the drawings, only for the convenience of describing the application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the scope of protection of the application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0078] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0079] In addition, it should be noted that the use of "first", "second" and the like to define parts only facilitates the differentiation of corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as a limitation on the scope of protection of the application.

[0080] The above only describes the preferred embodiments of the application and is not intended to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the scope of protection of the application.

Claims

1. A cable continuous winding 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), wherein the double-pancake cable-type coil (18) is wound on the inner centering frame (14) using a high-voltage cable, and 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), and the second fixing unit is used to fix the double-pancake cable-type coil (18) on the inner centering frame (14), and the double-pancake cable-type coil (18) The lead-out wire 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, the second fixing unit includes a binding belt (113) and a binding belt pressing block (114), the binding belt (113) is used to fix the double-pancake cable type coil (18) on the inner centering frame (14), the binding belt pressing block (114) is used to press the binding belt (113), and the inner centering frame (14) adopts an insulating composite material.

2. The propulsion module according to claim 1, characterized in that: The high-voltage cable includes a conductor, an insulating rubber layer and a semi-conductive rubber layer arranged from inside to outside.

3. A winding tool for winding the cable continuous winding propulsion module according to claim 1 or 2, characterized in that: The winding tool comprises a tool back plate (11), an external centering block (12), an internal centering pressing unit (13), an external centering pressing unit (16) and a winding machine shaft (17), wherein 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 block (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 performing external centering winding on the first cake of the double-cake cable type coil (18), and the inner centering frame (14) is used for performing internal centering winding on the second cake of the double-cake cable type coil (18), the first cake and the second cake include multi-turn coils, the inner centering pressing unit (13) passes through the outer centering stopper (12) and is used to press the wound high-voltage cable inward, and the outer centering pressing unit (16) passes through the inner centering frame (14) and is used to press the wound high-voltage cable outward.

4. The winding tool according to claim 3, characterized in that: The outer centering stoppers (12) are provided on the other three horizontal edges except the lower horizontal edge and the four rounded outer edges of the tooling back plate (11).

5. The winding tool according to claim 4, characterized in that: The inner centering and pressing unit (13) and the outer centering and pressing unit (16) are both pressing screws.

6. The winding tool according to claim 4, characterized in that: The winding machine shaft is horizontal or vertical.

7. A magnetic levitation track system, characterized in that: The system includes a track side wall mounting beam, a cable continuous winding propulsion module as described in claim 1 or 2, 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 single-phase coil spacing of the linear motor. 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 guide, positioning and fixing surface of the cable continuous winding propulsion module.

8. The system according to claim 7, characterized in that The system further includes a grounding flat steel, through which the grounding wire is double-ended and redundantly grounded.

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