Modular permanent magnet mover circulating cooling type electromagnetic catapult device

Abstract

The application discloses a modular permanent magnet moving element circulating cooling type electromagnetic catapult device, which comprises a stator assembly, a moving element assembly, a bearing support, a guiding and positioning assembly, a stator cooling structure, a moving element circulating cooling mechanism and a loading part. The moving element assembly comprises detachable permanent magnet moving element modules, the front end thrust transmission part of which is embedded into the inner recessed thrust interface of the lower part of the bearing support, abuts against the force transmission and is positioned; the separation side of the thrust interface is provided with an outlet and an exit profile tangent to the contour of the thrust surface, so that the thrust transmission part can exit along with the module turning. The moving element circulating cooling mechanism comprises a moving element transfer structure for receiving and guiding the module to separate from the bearing support, a cooling space for cooling the module and a moving element return mechanism for sending the module back to the loading part; a plurality of modules are circulated and used through the transfer, cooling, return and reloading. The application is used for repeated linear acceleration operation, facilitates module replacement and rotation cooling, and can improve the continuous operation capacity.

Description

Technical Field

[0001] This invention relates to the fields of electromagnetic catapult and linear motor drive technology, specifically to a modular permanent magnet actuator circulating cooling electromagnetic catapult device that employs a separable permanent magnet actuator module, which, after catapult launch, transfers the permanent magnet actuator module to a cooling space for cooling and then returns it for reloading. Background Technology

[0002] Electromagnetic catapults convert electrical energy into linear motion energy for the catapult and load through the electromagnetic force between the stator and the mover. They can be used for material acceleration and conveying, linear acceleration testing, and other applications. When a permanent magnet mover is used, the magnetic field generated by the energized stator interacts with the permanent magnetic field of the mover, forming a driving force along a predetermined direction.

[0003] During repeated launches, the stator windings carry a large current, generating heat. The mover also heats up due to eddy current losses and the radiation and conduction of heat from the stator side. The magnetic properties of the permanent magnet are related to the operating temperature. If the mover temperature continues to rise and is not effectively controlled, it may cause a decrease in thrust output. Prolonged high temperatures will also accelerate the decay of the permanent magnet's magnetic properties, affecting the stability of repeated operations. Taking heat dissipation measures only for the stator cannot replace cooling the already heated mover.

[0004] In devices where the mover is fixedly connected to the supporting mechanism, the recovery and cooling of the mover can only be arranged along with the movement of the supporting mechanism. Extending the waiting time of the entire device to wait for the mover to cool down will affect the cycle time of repetitive operations; at the same time, the maintenance and replacement of the mover, as well as the adjustment of the mover size according to load requirements, are also constrained by the fixed connection method.

[0005] When using a separable mover, three coordination issues need to be addressed: first, the reliability of thrust transmission and positioning during operation; second, the smooth release of force transmission coordination after ejection; and third, the seamless transition between mover transfer, cooling, return, and reloading. Particularly during the mover's transition from linear ejection to the transfer trajectory, if the geometry of the force transmission engagement disengagement is not coordinated with the mover's relative motion, it may hinder smooth separation or even cause contact impact.

[0006] Therefore, there is a need for an electromagnetic catapult device that can maintain force transmission and positioning coordination during operation, independently enter the cooling process after launch, and return to use after meeting the reloading conditions, so as to take into account the needs of module replacement, cyclic cooling and repetitive operation. Summary of the Invention The technical problem to be solved

[0007] To address the aforementioned problems, this invention provides a modular permanent magnet mover circulating cooling electromagnetic catapult device. This device solves the problems of mutual constraints between mover cooling and the operation of the support mechanism in repetitive catapult operations, and the difficulty in independently replacing and recycling the fixedly connected mover. Furthermore, it addresses the coordination issues of force transmission and positioning, smooth separation, and cyclic connection of the separable mover, particularly the issue of the thrust transmission part smoothly exiting the load-bearing interface as the mover moves relative to the support bracket when the mover transitions from linear catapult motion to the transfer track. This balances motion positioning during catapult operation with rapid and smooth transfer after catapult completion, improving the device's continuous operation capability and load adaptability. Technical solution

[0008] The electromagnetic catapult device of the present invention includes a stator assembly (1), a mover assembly (2), a support bracket (3), a load connector (4), a guide and positioning assembly (5), a stator cooling structure (6), a mover circulating cooling mechanism (7), and a loading part (8).

[0009] The stator assembly extends along the ejection direction A, at least partially surrounding the outer periphery of the mover assembly, and forming a non-contact magnetic gap with the mover assembly. The stator assembly has an opening (12) extending along the ejection direction A; when the stator assembly is energized, it interacts with the mover assembly to generate an electromagnetic force along the ejection direction A.

[0010] The mover assembly includes at least one detachable permanent magnet mover module (21), with a thrust transmission section (22) at its front end. The lower part of the support bracket extends into the area enclosed by the stator assembly through an opening, forming a concave load-bearing interface (31) located in front of the mover assembly along the ejection direction A. The thrust transmission section is at least partially embedded in the load-bearing interface, detachably abutting against it to transmit force and position it, causing the mover assembly to push the support bracket from the rear along the ejection direction A. The load-bearing interface has an outlet on a predetermined separation side for the thrust transmission section to exit. A load connector is provided on the support bracket for connecting the load to be ejected.

[0011] Furthermore, the thrust transmission unit has upper and lower positioning surfaces and a front convex arc-shaped bearing surface, and the bearing interface has matching upper and lower limiting surfaces and a concave arc-shaped bearing surface, and forms an exit profile on the predetermined separation side that is tangent to the horizontal profile of the concave arc-shaped bearing surface and leads to the outlet. During operation, the thrust transmission unit and the bearing interface transmit force and position themselves through embedding and arc-shaped contact; during transfer, the permanent magnet actuator module rotates and shifts relative to the support bracket, causing the thrust transmission unit to leave the bearing interface along the exit profile.

[0012] The guide and positioning component is fixedly disposed relative to the stator assembly and cooperates with the support bracket to limit the lateral offset, vertical offset, and sway of the support bracket during its movement, while allowing it to move along the ejection direction A. During the stage when the mover assembly and the support bracket are in cooperation and located within the stator working area, the bracket guidance and interface positioning work together to maintain the predetermined magnetic gap between the mover assembly and the stator assembly.

[0013] Furthermore, the guiding and positioning assembly includes fixed guide seats (51) extending along the ejection direction A and located on both sides of the lateral side of the support bracket, and guide members mounted on the fixed guide seats. The guide members include at least one of guide bearings, rollers, and guide sliders (52), which respectively cooperate with the upper surface, lower surface, and lateral outer surface of the corresponding part of the support bracket. The guide members are supported by the fixed guide seats, and the corresponding part of the support bracket extends into the fixed guide seats and moves along the guide members.

[0014] The mover circulation cooling mechanism includes a mover transfer structure (71), a cooling space (72), and a mover return mechanism (73) connected in sequence. The mover transfer structure is used to shift the ejected permanent magnet mover module relative to the support bracket, disengage the thrust transmission part from the load-bearing interface, and transfer the module to the cooling space. A mover cooling structure (721) is provided in the cooling space to reduce the module temperature. The mover return mechanism transports the cooled module to the loading part, which reloads the module onto the support bracket located at the loading position, so that the thrust transmission part and the load-bearing interface re-engage, forming a cycle path of ejection, transfer, cooling, return, and reloading.

[0015] The mover transfer structure (71) has two implementation forms: an inertial guide rail transfer form and an end-buffered mechanical transfer form. In the inertial guide rail transfer form, the mover transfer structure (71) includes a mover transfer rail (711); in the end-buffered mechanical transfer form, the mover transfer structure (71) includes a support buffer part (712), a mover buffer part (713), and a mechanical transfer mechanism (714).

[0016] In the inertial guide rail transfer configuration, the mover transfer structure (71) includes at least two mover transfer rails (711). The permanent magnet mover module has concave guide sections (23) on opposite sides, located within the module's outer contour. Short contact slippers (231) are provided within these concave guide sections. The longitudinal length of the contact section of the short contact slipper is less than the longitudinal length of the corresponding concave guide section. The front and rear ends of the contact section have end profiles that recede away from the track, providing clearance for the module to move along the curved track. The mover transfer rails extend into the concave guide sections, receiving and guiding the module through sliding contact with the short contact slippers.

[0017] The entry point of the mover transfer rail is located at the completion position of the ejection operation, smoothly connecting with the linear working path of the module. Subsequent rail sections gradually deviate from the continued movement path of the support bracket. The transfer rail receives the module before the thrust transmission section and the load-bearing interface are completely disengaged, and guides the module to turn, causing the thrust transmission section to exit along the exit contour. After separation, the module relies on inertia to enter the cooling space along the transfer rail, while the support bracket continues to advance along the original path under the constraint of the guiding and positioning components.

[0018] In the end-buffered mechanical transfer configuration, the mover transfer structure (71) includes a support buffer section (712), a mover buffer section (713), and a mechanical transfer mechanism (714). The two buffer sections contact the buffered parts of the support bracket and the permanent magnet mover module, respectively, causing them to decelerate. During the buffer deceleration process, the mechanical transfer mechanism causes the clamping tool (9) to move with the module and establish a clamp. While maintaining the clamp, it guides the module to turn and shift relative to the support bracket, causing the thrust transmission section to exit along the interface exit contour, and then moves the module to the cooling space.

[0019] The mechanical transfer mechanism includes a fixed support, a rotary drive unit, a telescopic arm, and a wrist, with the gripping tool connected to the wrist. The fixed support is located between the mover removal area and the cooling space. The rotary drive unit, telescopic arm, and wrist work together to ensure that the gripping tool's working range covers the buffer gripping section, the mover removal area, and the placement position within the cooling space. The follow-up gripping, relative withdrawal, and transfer actions are coordinated with the module's deceleration movement and the interface withdrawal contour. The interface disengagement can occur during the buffer deceleration process without requiring both the module and the support to stop.

[0020] The moving element cooling structure includes a cold plate with internal coolant channels. The cold plate is positioned at the moving element bearing surface within the cooling space. Its heat exchange surface supports the permanent magnet moving element module and has microscopic irregularities that create sliding friction. When the module slides in, its bottom surface contacts the heat exchange surface of the cold plate, gradually decelerating through friction while simultaneously transferring heat to the cold plate. After stopping, contact and heat exchange continue, with the coolant flowing within the cold plate carrying away the heat. In the mechanical transfer configuration, the clamping tool adjusts the module's speed and orientation during transport, ensuring the module is supported on the cold plate bearing surface and enters the cooling process.

[0021] The cooling space is equipped with a non-contact temperature detection element (722) to detect the surface temperature at at least two temperature measuring points on the permanent magnet actuator module housing, and the highest value among the detected temperatures is taken as the representative temperature of the module. When the representative temperature is higher than a preset loading temperature threshold, the module continues to cool; when it is not higher than the threshold, the actuator return mechanism transports the module to the loading section. The representative temperature is used to characterize the cooling state of the module housing and serves as the basis for determining whether reloading is permitted.

[0022] The moving part return mechanism and loading part use the same type of gripping tool to complete the module loading and unloading; when the end-buffered mechanical transfer method is adopted, the mechanical transfer mechanism also uses the same type of gripping tool. Each gripping tool has the same jaw structure, applicable clamping size range and installation interface. It clamps the corresponding clamping part on the module housing through the relatively opening and closing jaws, and is connected to the corresponding drive mechanism through the installation interface to complete the loading and unloading actions of module removal, return and reloading respectively.

[0023] Multiple permanent magnet mover modules have identical or mutually matching mating dimensions, thrust transmission structures, and positioning structures, and are interchangeable. The support bracket can be provided with one or more load-bearing interfaces, each interface corresponding to a module loading position, to configure the number and specifications of modules according to the requirements of the load to be ejected. The loading section is provided with a mover storage position (81) for storing the cooled modules. The device can be configured with at least two sets of mover module groups, each group including one or more modules, and each group is used in rotation according to the sequence of ejection, transfer, cooling, return, and reloading.

[0024] Module specifications can be differentiated based on parameters such as structural dimensions and effective working length. The thrust transmission structure, mating dimensions, and positioning structure of modules of different specifications remain identical or mutually matched, and are adapted to the corresponding stator's effective working area, transfer mechanism, and clamping tools. The loading unit selects the appropriate number and specifications of modules for loading according to the requirements of the load to be ejected.

[0025] The stator assembly includes multiple stator segments (11) arranged sequentially along the ejection direction A. The stator cooling structure is thermally connected to each stator segment, and its cooling range covers the entire stator segment. It employs at least one of a liquid cooling structure and a gas cooling structure.

[0026] When using a liquid cooling structure, a cooling jacket covering the outer periphery of the stator assembly, cooling channels passing through the interior of the stator assembly, or a combination of both can be provided, allowing the coolant to carry away the heat generated by the stator through the corresponding channels. When using an outer periphery cooling jacket, an opening is maintained at the position corresponding to the opening portion.

[0027] When a gas-cooled structure is used, heat dissipation fins are attached to and thermally connected to the stator sections, and an air supply section is provided to allow cooling airflow to pass through the heat dissipation fins. The heat generated by the stator is transferred to the heat dissipation fins and then carried away by the cooling airflow passing through the fins. The location of the air supply section and the airflow path are adapted to the distribution of each stator section, so that all stator sections are within the cooling range. Beneficial effects

[0028] This invention utilizes the separable connection between the permanent magnet actuator module and the support bracket, allowing the ejected module to independently enter the transfer, cooling, return, and reloading processes. This facilitates separate scheduling of actuator cooling and support recovery. With multiple modules configured for rotation, it reduces operational intervals caused by waiting for the same module to cool. Furthermore, the modules can be configured and replaced individually according to load requirements, facilitating maintenance and reuse.

[0029] This invention utilizes the embedded engagement of the thrust transmission section at the front end of the module with the recessed load-bearing interface at the lower part of the support to simultaneously transmit thrust and create positioning constraints. The arc-shaped load-bearing surface, tangential exit contour, and module transfer path work together to facilitate both force transmission and positioning during operation and disengagement after ejection. When using an inertial guide rail for transfer, the module deviates from the support path and detaches under the guide rail; when using an end-buffered mechanical transfer, the clamping tool follows and clamps the module during the buffer deceleration process, guiding its exit and transfer, thus seamlessly integrating the buffering, clamping, and transfer processes.

[0030] This invention limits the lateral, vertical, and swaying displacement of the support frame by fixing the guide seat and guide components. During the working phase where the mover and the support frame are in contact, this helps maintain the predetermined magnetic gap. The guide part of the module adopts a concave structure, and the short contact slipper is located within the outer envelope of the module. It cooperates with the transfer guide rail through local sliding contact and provides clearance space for the curved part of the rail, which helps maintain the compact shape of the module and adapt to turning movements.

[0031] This invention places a cold plate on the moving element's bearing surface within the cooling space. This allows the module to decelerate through friction on its bottom surface as it slides in, and to transfer heat to the cold plate through contact during sliding and stationary motions, thus connecting the deceleration, support, and heat exchange processes. The liquid circulating within the cold plate carries away the received heat. On the stator side, cooling is achieved through peripheral liquid cooling, internal channel liquid cooling, or finned air cooling, cooling the entire stator section and reducing heat accumulation during repetitive operations.

[0032] This invention detects the temperature at at least two temperature measuring points on the module housing in a non-contact manner, and uses the higher value as the representative temperature of the module, providing a clear temperature-based basis for return and reloading arrangements. This method eliminates the need for the temperature probe to contact the module, facilitating integration with module cooling and handling processes.

[0033] This invention uses the same clamping tool during module removal, cooling, return, and reloading, unifying the jaw structure, applicable clamping size range, and installation interface. This facilitates the mutual adaptation of each pick-and-place mechanism with the module clamping part, reduces the types of tools, and makes tool replacement and maintenance easier. Attached Figure Description

[0034] Figure 1This is a top view of the present invention using an inertial guide rail transfer method, showing the connection relationship between the stator assembly, the mover assembly, the support bracket, the mover transfer rail, the cooling space, the mover return mechanism, and the loading part. The internal functions of the cooling space and the mover return mechanism are represented by schematic diagrams.

[0035] Figure 2 This is a schematic diagram showing the assembly relationship between the stator assembly, mover assembly, support bracket, and guide positioning assembly. Figure 2 (a) is a cross-sectional view of the stator assembly and the permanent magnet drive module; Figure 2 (b) is a longitudinal partial sectional view of the force transmission cooperation between the moving part assembly and the load-bearing support; Figure 2 (c) is a cross-sectional view of the guide positioning component and the support bracket in action; Figure 2 (d) is a horizontal partial sectional view of the fit between the thrust transmission unit and the load-bearing interface; Figure 2 (e) is a horizontal partial sectional view of the load-bearing interface after omitting the moving part component.

[0036] Figure 3 This is a partial top-view schematic diagram of the inertial separation process between the permanent magnet drive submodule and the supporting bracket. Figure 3 (a) Figure 3 (b) and Figure 3 (c) shows the permanent magnet moving submodule receiving the passive transfer rail, deflecting and disengaging from the support bracket, and the state in which the module and the bracket continue to move along their respective paths after separation; each sub-graph only shows the last two stator sections.

[0037] Figure 4 A schematic diagram of the mover transfer structure (71) using an end-buffered mechanical transfer method, wherein, Figure 4 (a) is a side view of the contact buffer of the support buffer and the moving part buffer, and the gripping tool following the gripping action; Figure 4 (b) is a top view of the mechanical transfer mechanism removing the permanent magnet sub-module and transferring it to the cooling space during the buffer deceleration process. The solid and dashed outlines of the extension arm represent the working posture of the same mechanical transfer mechanism in the removal and placement positions, respectively, while the position of its fixed support remains unchanged.

[0038] Figure 5 This diagram illustrates the path for the cyclic cooling and reuse of the permanent magnet mover module, showing the connection between loading, ejection, transfer, cooling, return, and storage, as well as the composition of the mover cyclic cooling mechanism and the loading section.

[0039] Figure 6 This is a schematic diagram illustrating heat exchange and non-contact temperature measurement using a cold plate. Figure 6(a) is a partial side view of the permanent magnet submodule sliding into the cold plate bearing surface for deceleration, heat exchange, and two-point temperature measurement of the shell. The dashed and solid lines of the module outline represent the sliding state and the stationary state of the same module, respectively. Figure 6 (b) is a top view of the relationship between the heat exchange surface of the cold plate and the bottom surface of the module housing.

[0040] Figure 7 This is a partial schematic diagram of the mover guide and the gripping tool, wherein, Figure 7 (a) A partial top view including the concave guide portion, the short contact slide shoe and the mover transfer guide rail, and a partial transverse cross-sectional view of the location of the short contact slide shoe; Figure 7 (b) is a top view of the clamping tool holding the permanent magnet sub-module. Explanation of reference numerals in the attached figures

[0041] 1—Stator assembly; 11—Stator section; 12—Opening.

[0042] 2—Motor assembly; 21—Permanent magnet motor module; 22—Thrust transmission part; 23—Motor guide part; 231—Short contact slipper.

[0043] 3—Bearing support; 31—Bearing interface; 4—Load connector.

[0044] 5—Guide positioning assembly; 51—Fixed guide seat; 52—Guide slider; 6—Stator cooling structure.

[0045] 7—Motor circulation cooling mechanism; 71—Motor transfer structure; 711—Motor transfer guide rail; 712—Support buffer section; 713—Motor buffer section; 714—Mechanical transfer mechanism; 72—Cooling space; 721—Motor cooling structure; 722—Temperature detection element; 73—Motor return mechanism.

[0046] 8—Loading section; 81—Motor storage location; 9—Clamping tool.

[0047] P1, P2—Module housing temperature measurement points; A—Ejection direction; t—Local withdrawal tangential direction of the thrust transmission unit relative to the load-bearing interface. Detailed Implementation

[0048] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention; the various embodiments and their technical features can be combined with each other when they do not conflict.

[0049] In this text, "front" and "rear" are referenced to the launch direction A; in the illustrated installation posture, "horizontal" refers to the direction perpendicular to the launch direction A in the horizontal plane, and "vertical" refers to the direction perpendicular to the horizontal plane. The accompanying drawings are used to illustrate the composition, fit, and operational relationships of the components; the scale of the drawings is not intended to limit actual manufacturing dimensions.

[0050] In the accompanying drawings, the same reference numerals indicate the same or similar components. When working modules and support brackets are drawn repeatedly at different process locations, it indicates their state at different operational stages and is not counted as newly added components; the number of components in each embodiment is subject to the corresponding textual description. Component range lines and function blocks are used to indicate the composition or functional relationships of the mechanism. Dashed outlines indicating different positions, dashed arrows indicating movement paths, and dashed lines indicating temperature measurement correspondences should be understood in conjunction with the corresponding views. Example 1: Inertial Guide Rail Transfer Form

[0051] like Figures 1 to 3 , Figures 5 to 7 As shown, this embodiment includes a stator assembly (1), a mover assembly (2) participating in the current ejection, a support bracket (3), a load connector (4), a guide and positioning assembly (5), a stator cooling structure (6), a mover circulation cooling mechanism (7), and a loading part (8). The mover circulation cooling mechanism includes a mover transfer structure (71), a cooling space (72), and a mover return mechanism (73) connected in sequence.

[0052] The stator assembly extends along the ejection direction A and includes six stator segments (11) arranged in sequence. Figure 1 A pair of segment profiles appearing on both sides of the central opening represent the same stator segment, and the six sets of segment profiles together form the stator assembly; Figure 3 Each diagram only shows the last two stator segments. After assembly, all stator segments together form a continuous enclosure structure. The segment outlines shown are used to distinguish the location of each segment and do not indicate that there are through-slots along the entire cross-section of the stator.

[0053] like Figure 2 As shown in (a), the stator assembly is at least partially surrounding the outer periphery of the mover assembly, and its top has an opening (12) extending along the ejection direction A, forming a non-contact magnetic gap between the mover and the stator. Each stator segment is provided with windings that generate a driving magnetic field when energized, and a permanent magnet is provided in the permanent magnet mover module (21) to form the mover magnetic field. The energization of the stator windings is coordinated with the position of the mover, so that the stator magnetic field and the mover magnetic field interact to generate an electromagnetic driving force along the ejection direction A.

[0054] The stator cooling structure in this embodiment employs a continuous outer peripheral liquid cooling jacket. The cooling jacket covers the outer periphery of the stator assembly, is thermally connected to each stator segment, and its axial coverage includes all six stator segments, with openings at corresponding locations. The coolant circulates within the cooling jacket's channels, carrying away heat transferred from the stator to the cooling jacket. Figure 1 In the diagram, label 1 points to the stator assembly, and label 6 points to its outer cooling jacket.

[0055] This embodiment features three interchangeable permanent magnet mover modules, divided into three groups, with one module in each group. Each launch selects one module to cooperate with the support bracket, forming the currently operating mover assembly. Figure 1 In the diagram, one module is in the working position, and the other two modules are located in the loading section; the modules indicated by dashed lines in the transfer guide rail, cooling space, and return mechanism indicate the subsequent positions of the working module.

[0056] Each permanent magnet drive submodule has the same or matching mating dimensions, thrust transmission structure, and positioning structure. The support bracket has a load-bearing interface (31) corresponding to a module loading position. The module is loaded and unloaded by establishing or disengaging with the load-bearing interface.

[0057] like Figure 2 (b) Figure 2 As shown in (d), the front end of the permanent magnet mover module is provided with a block-shaped thrust transmission part (22). The lower part of the support bracket extends into the area enclosed by the stator assembly through the opening and forms a concave load-bearing interface; the load-bearing interface is located in front of the mover assembly along the ejection direction A. The thrust transmission part is at least partially embedded in the load-bearing interface, and is detachably abutted against and positioned thereto. The load-bearing interface is formed in the concave part of the lower part of the support bracket itself, and no additional interface block protruding towards the mover is provided.

[0058] The thrust transmission unit has upper and lower positioning surfaces, and its front end forms a convex arc-shaped load-bearing profile in the horizontal plane. The load-bearing interface has corresponding upper and lower limiting surfaces and a concave arc-shaped load-bearing surface, and has an outlet on the predetermined separation side for the thrust transmission unit to exit. The exit profile on the outlet side is tangent to the horizontal profile of the concave arc-shaped load-bearing surface, allowing the thrust transmission unit to leave the interface through relative turning and displacement.

[0059] During operation, the upper and lower positioning surfaces mate with the corresponding limiting surfaces to restrict the vertical relative displacement between the mover and the support. The thrust along the ejection direction A keeps the convex arc-shaped bearing surface in contact with the concave arc-shaped bearing surface. The arc-shaped mating surfaces form corresponding contact constraints on both sides in the lateral direction, restricting lateral relative displacement while maintaining contact during operation. The load connector is located on the external bearing part of the support, shown as a rectangular frame above the support in the attached diagram. The mover pushes the support and its connected load from the rear via the thrust transmission part, accelerating them along the ejection direction A.

[0060] Figure 2 (e) The recessed profile of the load-bearing interface is shown by omitting the moving part component, where the section line represents the support body; Figure 2 (b) Figure 2 The section lines inserted in (d) are used to distinguish the embedded relationship between the thrust transmission part and the load-bearing interface. Figure 2 In (d), t represents the local exit tangential direction of the thrust transmission part relative to the load-bearing interface, which is distinct from the absolute motion direction of the mover in the fixed coordinate system.

[0061] like Figure 2 As shown in (c), the guide positioning assembly includes two fixed guide seats (51) fixedly disposed relative to the stator assembly, located on the lateral sides of the bracket respectively. Each fixed guide seat has an upper guide slider, a lower guide slider and an outer guide slider, all indicated by the reference numeral 52, and the two fixed guide seats have a total of six guide sliders (52).

[0062] The fixed guide seat extends along the ejection direction A, and its cross-section forms a groove-shaped support profile with an opening facing the bracket. Corresponding parts on both sides of the bracket extend into the fixed guide seat, forming a sliding engagement with the upper, lower, and outer guide sliders, respectively. The fixed guide seat and guide sliders remain fixed, and the bracket moves along the contact surface of the guide sliders. Figure 2 The number 5 indicates the whole consisting of a fixed guide seat and a guide slider, the number 51 indicates the outer groove support structure, and the number 52 indicates the sliding contact component that directly cooperates with the bracket.

[0063] The upper and lower guide sliders respectively limit the upward and downward offset of the bracket, while the outer guide sliders on both sides jointly limit the lateral offset. The mating length set along the ejection direction is used to limit the swing of the bracket, while retaining the degree of freedom of the bracket to move along the ejection direction A. Figure 2 (b) Partially cut open one side of the guide structure. Figure 2 (c) Showing the cross-section of the guide structures on both sides. During the stage when the mover and the support are engaged and located in the working area of ​​the stator, the support guidance and interface positioning work together to maintain the predetermined magnetic action gap and make the direction of support movement consistent with the ejection direction.

[0064] like Figure 2 (a) Figure 7 As shown in (a), each permanent magnet mover module has a concave guide portion (23) extending along the length of the module on each of its opposite sides. Each concave guide portion has two short contact slippers (231) spaced apart along the length, and each module has a total of four short contact slippers; the two concave guide portions correspond to the two mover transfer rails (711) respectively. The concave guide portions, short contact slippers and their mounting parts are all kept within the outer envelope of the module.

[0065] A short contact shoe is fixed to a concave guide portion, with its contact section having a longitudinal length less than that of the concave guide portion. The front and rear ends of the contact section have end profiles that recede away from the track. The shoe has upper and lower bearing surfaces that mate with the track, as well as lateral guide surfaces. The mover transfer rail can extend into the concave guide portion and slide in contact with the shoe. Clearance is maintained between adjacent shoes and outside the shoe ends for track turning, and a movement gap is maintained between the non-contact wall of the concave guide portion and the track.

[0066] The mover transfer structure (71) in this embodiment adopts an inertial guide rail transfer form and is set at the position where the ejection operation is completed. Two mover transfer guide rails extend from the end of the stator working area to the cooling space. The rail entrance is smoothly connected to the straight working path of the module, and the subsequent rail segments gradually deviate from the path of the support to continue moving forward. Figure 1 The component range shown in reference numeral 71 includes a complete transfer section with two guide rails from the receiving inlet to the cooling space inlet.

[0067] When the module reaches the ejection completion position, the inlets of the two mover transfer rails enter the corresponding concave guide sections and sequentially establish sliding contact with the short contact slippers arranged at intervals along the module's length. Within the section where the load-bearing interface remains positioned, the rail inlets align with the module's original working path; the rails complete the receiving of the module before the interface constraints are released, subsequently guiding the module to gradually turn. The support continues to advance along the ejection direction A under the constraint of the guiding and positioning components.

[0068] The relative turning and displacement between the module and the support cause the thrust transmission unit to gradually withdraw along the exit contour of the load-bearing interface, releasing the force transmission and positioning engagement. After separation, the module continues to be guided by the mover transfer rail and moves towards the cooling space using its remaining kinetic energy; the support continues to move along its original path. Figure 3 These represent the states of track reception, deflection separation, and subsequent movement after separation, in sequence.

[0069] The connection direction, curvature change, slipper contact length, and spacing at the track inlet are coordinated with the interface exit profile to ensure that the relative motion trajectory of the thrust transmission unit avoids the solid portion of the load-bearing interface. When the module moves along the curved track, the short-contact slippers provide localized sliding contact, and their end recess profiles and the space between adjacent slippers accommodate the curved portion of the track. The above coordination is achieved by… Figure 2 (d) Figure 2 (e) and Figure 7 (a) Shown together.

[0070] The end of the transfer guide rail smoothly connects to the inlet of the cold plate in the cooling space, ensuring that the bottom surface of the module is at a bearing height corresponding to the heat exchange surface when it enters the cold plate. After the bottom surface of the module contacts the cold plate, the cold plate gradually bears the bottom support load; a corresponding vertical fit allowance is maintained between the guide rail and the sliding shoe to ensure that the track fit does not hinder the bottom surface of the module from adhering to the cold plate. Figure 6 The sliding-in state and the stationary state shown correspond to the same cold plate bearing surface.

[0071] The guide rail end position is matched with the cold plate bearing capacity, allowing the module's bottom surface to be supported by the cold plate first. Subsequently, each short contact slipper exits the guide rail end sequentially as the module advances. The cooling stop position is located after the module has exited the transfer guide rail as a whole, allowing the stopped module to be lifted upwards from the cold plate by the clamping tool. The effective sliding length and surface contact conditions of the cold plate are matched with the module's entry speed, mass, and guide rail end position, causing the module to decelerate and stop within the cold plate coverage area after exiting the guide rail.

[0072] After the support completes load acceleration and release, it is decelerated and returned to the loading position by the support traction mechanism, preparing for the next loading. The support traction mechanism and its recovery path are independent of the mover return mechanism. The attached diagram mainly shows the mover transfer, cooling, and return path. Moving element bonding cooling, return and rotation process

[0073] like Figure 6 As shown, a cold plate with internal coolant channels is installed within the cooling space, forming the mover cooling structure (721). The cold plate is located at the mover bearing surface within the cooling space, and its heat exchange surface is used to support the permanent magnet mover module. The width of the cold plate covers the lateral range of the bottom surface of the module housing, and the length covers the sliding deceleration section and the cooling stopping position; when the module is stationary, its entire bottom surface of the housing is within the coverage area of ​​the cold plate's heat exchange surface.

[0074] Figure 6 In (a), the dashed and solid line module outlines represent the sliding-in and stationary states of the same module, respectively; Figure 6 (b) shows the correspondence between the bottom surface of the module and the heat exchange surface of the cold plate. Figure 1 , Figure 4 and Figure 5 The vertical arrangement of the intercooler plate and module symbols indicates the functional components; the actual load-bearing capacity and contact heat exchange relationship are shown in [reference needed]. Figure 6 .

[0075] The coolant channels inside the cold plate are connected to the supply and return coolant pathways. When the bottom surface of the module contacts the cold plate, heat is transferred to the cold plate through the contact area and carried away by the internally circulating coolant. Heat generated by the sliding friction of the module is also incorporated into this cooling process. Figure 6 The internal flow channels and flow direction of the cold plate are shown; the external liquid supply and heat dissipation parts are omitted.

[0076] The cold plate heat exchange surface maintains an overall planar shape capable of supporting the bottom surface of the module, and has microscopic irregularities that create sliding friction. The surface does not have macroscopic protrusions that would hinder the module's sliding in, and the inlet edge has a smooth transition. The module decelerates through friction on the bottom surface during sliding and heat transfer through contact with the bottom surface during sliding and stationary phases. "Complete bottom surface coverage" refers to the geometric coverage area; actual contact heat transfer is determined by the material, contact load, and surface contact condition.

[0077] After the module stops, it maintains contact between its bottom surface and the heat exchange surface of the cold plate under its own weight until the return conditions are met. When using mechanical transfer, the gripping tool adjusts the speed and posture of the module during the transfer process to ensure that the module is stably supported on the cold plate bearing surface before releasing the grippers; after the module stops, it enters the dwell heat exchange stage.

[0078] The cooling space is equipped with two non-contact infrared temperature detectors (722), facing temperature measuring points P1 and P2 spaced apart along the length of the module housing. The two measuring points are located on the outer surface of the housing not obstructed by the fixtures or cold plate. The detectors read the surface temperature of their respective areas. The dashed lines in the figure represent the temperature measurement correspondence, and P1 and P2 indicate the measurement positions.

[0079] Within the same detection cycle, the detected temperatures at two temperature measurement points are compared, and the higher value is taken as the module's representative temperature. If the representative temperature is higher than the preset loading temperature threshold, the module continues to cool; if the representative temperature is not higher than the threshold, the mover return mechanism is allowed to send the module to the loading section. This representative temperature serves as a reloading judgment quantity based on the shell temperature measurement and is not directly equivalent to the highest temperature of the internal permanent magnet.

[0080] The surface conditions of the two temperature measurement areas are kept consistent, and the emissivity setting of the detection element matches the corresponding shell surface; the same stable high emissivity surface layer can be set for the temperature measurement areas. The detection field of view is located within the corresponding temperature measurement area to avoid the background and adjacent cold plates affecting the readings. The preset loading temperature threshold is set in conjunction with the allowable operating temperature of the permanent magnet material, the module structure, and the correspondence between the shell temperature measurement and the internal thermal state.

[0081] The mover return mechanism of this embodiment includes a guide rail arranged along the return path, a drive slide that can move along the guide rail, a lifting and attitude adjustment part provided on the drive slide, and a gripping tool (9) installed at its end. After the module meets the temperature conditions, the gripping tool grips the module and lifts it away from the cold plate, and the drive slide moves along the return path to transport the module and place it in the mover storage position (81) of the loading part. Figure 1 and Figure 5 The moving part return mechanism is represented by a rectangular functional outline, and its internal modules represent the conveying status.

[0082] The loading section has three moving part storage positions and is equipped with a loading drive mechanism and a gripping tool. The loading drive mechanism has displacement, lifting, and attitude adjustment parts, and its working range covers the moving part storage positions and the loading position of the empty load-bearing bracket. The gripping tool selects modules that meet the loading conditions, quantity, and specifications required for the ejection load, adjusts them to the inlet side of the load-bearing interface, and through relative displacement and turning movements opposite to the withdrawal process, allows the thrust transmission part to enter the load-bearing interface. After the module is in place and supported on the positioning surface and load-bearing surface, the gripping tool releases its grippers and withdraws from the loading area.

[0083] like Figure 7 As shown in (b), the gripping tool has a pair of grippers driven by an opening and closing drive unit. The grippers contact the corresponding outer gripping area of ​​the module housing via gripping pads. The back of the tool is provided with a mounting interface for connection to the end of the drive mechanism. The gripping area avoids contact with the concave guide, thrust transmission part, bottom heat exchange area, and temperature measuring point. After gripping, the grippers remain closed until the module is supported at the target position or the interface is engaged.

[0084] The moving part return mechanism and the loading part are each equipped with one identical gripping tool, and two gripping tools are used in this embodiment. The identical gripping tools have the same jaw structure, applicable clamping size range and installation interface, and the corresponding pick-and-place actions are completed by the drive unit of the mechanism. Figure 7 (b) Only the common structure of one of the tools is shown.

[0085] Figure 1 The dashed arrow extending from the loading section points to the loading state of the empty support bracket. This empty support bracket and the support bracket in the working position are the same support bracket at different stages. Figure 5 In this context, the loading area and the storage area are located within the common area of ​​the loading section, and the moving part storage location belongs to the loading section.

[0086] The three modules are used in rotation in the order of loading, ejection, transfer, cooling, return, and storage. The cooling and transfer time of each module is arranged according to the actual operation progress, and a spare module that meets the loading conditions is available for subsequent ejection. The process stage of each module at any given time does not need to be fixed as one set of ejection, one set of cooling, and one set of loading. Example 2: End-buffered mechanical transfer form

[0087] like Figures 4 to 7 As shown, the stator assembly, support bracket, number of modules, and loading configuration in this embodiment are the same as in Embodiment 1. That is, a set of stator assemblies includes six stator segments, one support bracket, three rotating permanent magnet mover modules, and three mover storage positions. One module is used for each ejection. The stator cooling structure, separable load-bearing interface, fixed guide structure, one cold plate, and two infrared temperature detection devices are set up in the same way as in Embodiment 1.

[0088] The mover transfer structure (71) of this embodiment adopts an end-buffered mechanical transfer form, which consists of a support buffer (712), a mover buffer (713) and a mechanical transfer mechanism (714). Figure 4 The grouping markers in the diagram are used to indicate that the above three parts together constitute the mover transfer structure (71), and the corresponding structures are shown in the diagrams below. Figure 4 (a) and Figure 4 (b); The cooling space (72) is located outside this component area. After the module is ejected, it is held and disengaged by the mechanical transfer mechanism during the buffer deceleration process, and then transferred to the cooling space. The mechanical transfer mechanism, the mover return mechanism and the loading unit are each equipped with one of the same type of gripping tool, for a total of three gripping tools.

[0089] After the load completes its predetermined acceleration and release, the support and mover enter the end buffer section. For example... Figure 4 As shown in (a), the contact pressure head of the support buffer section contacts the buffered part of the support, and the contact pressure head of the mover buffer section contacts the buffered part of the module body, respectively buffering and decelerating the support and the mover. The contact position, effective stroke, and deceleration process of the two buffer sections are coordinated with the follow-up removal action of the gripping tool, maintaining the necessary force transmission and positioning relationship before removal. The buffer contact parts are adapted to the module's exit path, allowing the module to disengage from the corresponding contact pressure head when it rotates or shifts relative to the support.

[0090] The diagram illustrates the composition and function of a buffer unit through a contact head, a force-transmitting connection, an elastic element, and a damping unit. Moving parts transmit loads to the buffer unit via the contact head, the elastic element bears the load through deformation, and the damping unit dissipates kinetic energy. These elastic and damping effects can be achieved by corresponding mechanical, pneumatic, or hydraulic structures; the illustrated form is not limited to a hydraulic buffer.

[0091] like Figure 4 As shown in (b), the mechanical transfer mechanism includes a fixed support, a rotary drive unit, a telescopic arm, and a wrist. The gripping tool is connected to the wrist via a mounting interface. The fixed support is located between the mover removal area and the cooling space, and remains fixed during the loading and unloading process. The rotary, telescopic, and wrist movements work together to adjust the position and orientation of the gripping tool, ensuring that its working range covers the buffer gripping section, the mover removal area, and the placement position on the cold plate.

[0092] After the module enters the buffer zone, the mechanical transfer mechanism moves the open grippers to the vicinity of the module's clamping area, causing the gripping tool to follow the module's deceleration trajectory. When the relative position and relative movement of the grippers and the module meet the clamping conditions, the grippers close. After clamping is established, the gripping tool continues to follow the module while adjusting its position and orientation relative to the support, guiding the thrust transmission unit to disengage along the interface exit contour. The following and exit actions are coordinated with the buffer stroke and deceleration process. Figure 4 (a) The gripping tool is represented by a dashed partial outline and the following direction is indicated by an arrow.

[0093] The gripping tool maintains its grip, while the mechanical transfer mechanism, through rotation, extension, and wrist movements, causes the module to turn and shift along a path adapted to the arc and tangential exit contour of the load-bearing interface during buffered deceleration, until the thrust transmission part exits the load-bearing interface. The exit process is achieved by the relative movement between the module and the support, without waiting for both to stop; after disengagement, the gripping tool continues to hold the module and control its transfer movement.

[0094] After disengaging, the mechanical transfer mechanism moves the module to the cooling space. During the transfer, the module's speed and posture are adjusted so that the bottom surface of its shell is within the coverage area of ​​the cold plate heat exchange surface. After the bottom surface is stably supported by the cold plate, the grippers are released. Figure 4 (b) The solid outline represents the working posture of the removal position, and the dashed outline of the extension arm and tool represents the working posture of the same mechanism in the insertion position; the two postures share a fixed support, and the dashed arrow represents the module transfer path.

[0095] The module completes cooling according to the same temperature judgment conditions as in Example 1, and is then transported to the loading section via the mover return mechanism, where it is stored and reloaded. After the support completes buffering and stopping, it returns to the loading position by the support traction mechanism. The module return and support return are arranged separately and connected in the next loading operation. Other implementation methods

[0096] While maintaining separable force transmission and circulating cooling, the support frame can be equipped with multiple independent load-bearing interfaces, each corresponding to a module loading position. The appropriate number and specifications of modules are configured according to load requirements. Module specifications can be differentiated based on parameters such as structural dimensions and effective working length. The mating dimensions, thrust transmission structure, and positioning structure of the selected modules remain the same or mutually matched, and are adapted to the corresponding load-bearing interfaces and clamping tools. The number, specifications, and interface arrangement of modules are adapted to the effective working area of ​​the stator, the support frame structure, and the module transfer path; the number of stator segments can be configured according to the working stroke. The above form is an extension of the single-module loading, six-stator-segment form shown in the diagram.

[0097] The concave guide portion and the corresponding mover transfer rail can be configured as two concave guide portions and two corresponding mover transfer rails, or four concave guide portions and four corresponding mover transfer rails, or other matching quantities. The number, length, and spacing of the short contact slippers are determined according to the mating requirements. Each mating point retains the clearance space required for track turning and is coordinated with the interface exit path. The illustrated inertial guide rail transfer embodiment still uses two concave guide portions, four short contact slippers, and two mover transfer rails.

[0098] The guiding and positioning assembly can also employ guide bearings, rollers, or a combination thereof with guide sliders supported by fixed guide seats. Through corresponding cooperation with the upper surface, lower surface, and lateral outer surface of the support, it jointly restricts the offset and sway of the support while preserving the degree of freedom of movement along the ejection direction. Reference numeral 52 in the illustration specifically refers to a guide slider employing sliding contact.

[0099] In addition to using an outer peripheral liquid cooling jacket, the stator cooling structure can also employ coolant channels passing through the interior of the stator assembly, or a combination of an outer peripheral cooling jacket and internal coolant channels. The cooling structure is thermally connected to each stator segment, and its cooling effect covers the entire stator segment; when using an outer peripheral cooling jacket, an opening is provided at the corresponding opening position for the movement of the support connection parts.

[0100] When gas cooling is used, the stator cooling structure includes heat dissipation fins attached to and thermally connected to each stator section, and an air supply section through which cooling airflow passes. The air supply section can be spaced apart from the stator, while the heat dissipation fins remain in contact with the stator. Stator heat is transferred through the fins to the flowing cooling airflow; the arrangement of the fins and airflow ensures that the cooling effect covers the entire stator section. Liquid cooling can also be used in combination with the above-mentioned finned gas cooling.

[0101] The mover cooling structure can also employ other contact heat exchange structures, gas cooling structures, or combinations of multiple cooling structures to maintain an independent path for the mover's cooling, return, and reloading. When the cooling structure does not also provide sliding friction deceleration, the deceleration and stopping support before the module enters the cooling position is handled by a structure adapted to this implementation.

[0102] The number of temperature measuring points can be two or more. In addition to the implementation method with two temperature measuring points shown in the figure, three or more temperature measuring points can be set on the housing according to the size and temperature distribution of the permanent magnet drive module housing. The surface temperature of each temperature measuring point is detected by the corresponding non-contact temperature detection device, and the highest value of the detected temperature of each temperature measuring point within the same detection cycle is taken as the representative temperature of the module. Whether return and reloading are allowed is determined according to the preset loading temperature threshold.

[0103] The receiving, buffering, clamping, and cold plate connection structures of the inertial guide rail transfer form and the end-buffered mechanical transfer form are respectively configured to correspond to the corresponding operation processes. While maintaining compatibility between the clamping area and the mounting interface, the clamping tool can be driven by different displacement drive mechanisms to complete the removal, return, and reloading. The technical features in the above embodiments can be combined with each other when they do not conflict; all equivalent substitutions, modifications, or improvements made based on the concept of this invention are within the protection scope of this invention.

Claims

1. A modular permanent magnet mover circulating cooling electromagnetic catapult device, comprising a stator assembly (1), a mover assembly (2), a support bracket (3), a load connector (4), a guide and positioning assembly (5), a stator cooling structure (6), a mover circulating cooling mechanism (7), and a loading section (8), characterized in that: The stator assembly (1) extends along the ejection direction (A), at least partially surrounds the outer periphery of the mover assembly (2), and forms a non-contact magnetic gap with the mover assembly (2); the stator assembly (1) is provided with an opening (12) extending along the ejection direction (A), and after the stator assembly (1) is energized, it interacts with the mover assembly (2) to generate an electromagnetic force along the ejection direction (A); The mover assembly (2) includes at least one detachable permanent magnet mover module (21), the front end of which is provided with a thrust transmission part (22); the lower part of the support bracket (3) extends into the area enclosed by the stator assembly (1) through the opening (12) and forms a concave load-bearing interface (31), the load-bearing interface (31) being located in front of the mover assembly (2) along the ejection direction (A); the thrust transmission part (22) is at least partially embedded in the load-bearing interface (31), and is detachably abutted against the load-bearing interface (31) to transmit force and position it, so that the mover assembly (2) pushes the support bracket (3) to move from the rear; the load-bearing interface (31) is provided with an outlet for the thrust transmission part (22) to exit along a predetermined separation direction; The load connector (4) is disposed on the bearing bracket (3) and is used to connect the load to be ejected; The guide positioning component (5) is fixedly disposed relative to the stator component (1) and guides and cooperates with the bearing bracket (3) to limit the lateral offset, vertical offset and swing of the bearing bracket (3) and allow the bearing bracket (3) to move along the ejection direction (A); The stator cooling structure (6) is thermally connected to the stator assembly (1) and is used to cool the stator assembly (1); The mover circulation cooling mechanism (7) includes a mover transfer structure (71), a cooling space (72), and a mover return mechanism (73) connected in sequence; the mover transfer structure (71) is used to move the permanent magnet mover module (21) relative to the support bracket (3) after ejection, so as to release the cooperation between the thrust transmission part (22) and the load-bearing interface (31) and transfer the permanent magnet mover module (21) to the cooling space (72); the cooling space (72) is provided with a mover cooling structure (73). 21), used to cool the permanent magnet drive submodule (21); the drive return mechanism (73) is used to transport the cooled permanent magnet drive submodule (21) to the loading part (8); the loading part (8) is used to reload the cooled permanent magnet drive submodule (21) to the bearing bracket (3) located at the loading position, so that the thrust transmission part (22) and the bearing interface (31) re-cooperate to form a cycle path of ejection, transfer, cooling, return and reloading of the permanent magnet drive submodule (21).

2. The electromagnetic catapult device according to claim 1, characterized in that: The number of permanent magnet moving sub-modules (21) is multiple, and each permanent magnet moving sub-module (21) has the same or mutually matching mating dimensions, thrust transmission structure and positioning structure, and can be interchanged; the bearing bracket (3) is provided with one or more bearing interfaces (31) for forming one or more module loading positions, so as to configure the number and specifications of the permanent magnet moving sub-modules (21) according to the requirements of the load to be ejected; the loading part (8) is provided with a moving part storage position (81) for storing the cooled permanent magnet moving sub-modules (21); the electromagnetic ejection device is configured with at least two groups of moving sub-modules, each group of moving sub-modules includes one or more permanent magnet moving sub-modules (21), and each group of moving sub-modules is used in rotation in the order of ejection, transfer, cooling, return and reloading.

3. The electromagnetic catapult device according to claim 1, characterized in that: The thrust transmission part (22) has an upper positioning surface, a lower positioning surface and a convex arc-shaped bearing surface at the front end; the bearing interface (31) has an upper limit surface, a lower limit surface and a concave arc-shaped bearing surface that cooperate with the thrust transmission part (22); the bearing interface (31) forms an exit profile on a predetermined separation side, the exit profile is tangent to the horizontal profile of the concave arc-shaped bearing surface and leads to the outlet, so that the thrust transmission part (22) exits the bearing interface (31) as the permanent magnet moving submodule (21) rotates and shifts relative to the bearing bracket (3).

4. The electromagnetic catapult device according to claim 1, characterized in that: The guide positioning assembly (5) includes a fixed guide seat (51) extending along the ejection direction (A) and located on both sides of the lateral side of the support bracket (3), and a guide member installed on the fixed guide seat (51); the corresponding part of the support bracket (3) extends into the fixed guide seat (51) and moves along the guide member; the guide member is at least one of a guide bearing, a roller or a guide slider (52), which respectively cooperates with the upper surface, lower surface and lateral outer side of the corresponding part of the support bracket (3).

5. The electromagnetic catapult device according to claim 3, characterized in that: The mover transfer structure (71) includes at least two mover transfer guide rails (711); the permanent magnet mover module (21) has concave guide portions (23) on opposite sides, located within the outer envelope of the module, and the concave guide portions (23) have short contact slippers (231) that slide in cooperation with the mover transfer guide rails (711); the longitudinal length of the contact section of the short contact slipper (231) is less than the longitudinal length of the concave guide portion (23), and the front and rear ends of the contact section have end wheels that recede away from the mover transfer guide rails (711). The inlet of the moving part transfer rail (711) connects with the straight path of the permanent magnet moving part module (21) at the completed ejection position. The subsequent track segment gradually deviates from the continuing movement path of the bearing support (3) to receive and guide the permanent magnet moving part module (21) to turn, so that the thrust transmission part (22) exits the bearing interface (31) along the exit contour. After separation, the permanent magnet moving part module (21) enters the cooling space (72) along the moving part transfer rail (711) by inertia, and the bearing support (3) continues to move along the original path.

6. The electromagnetic catapult device according to claim 3, characterized in that: The mover transfer structure (71) includes a support buffer (712), a mover buffer (713), and a mechanical transfer mechanism (714); the support buffer (712) and the mover buffer (713) respectively contact the buffered parts of the support bracket (3) and the permanent magnet mover module (21) through contact pressure heads, so that the support bracket (3) and the permanent magnet mover module (21) decelerate; the mechanical transfer mechanism (714) includes a fixed support, a rotary drive, a telescopic arm, a wrist, and a gripping tool (9) connected to the wrist; the fixed support is located between the mover removal area and the cooling space (72), and the The mechanical transfer mechanism (714) drives the working range of the gripping tool (9) to cover the buffer gripping section, the moving part removal area and the placement position in the cooling space (72); the mechanical transfer mechanism (714) can drive the gripping tool (9) to move with the permanent magnet moving sub-module (21) and establish a grip during the buffer deceleration process, and drive the permanent magnet moving sub-module (21) to turn and shift relative to the bearing bracket (3) while maintaining the grip, so that the thrust transmission part (22) exits the bearing interface (31) along the exit contour, and then moves the permanent magnet moving sub-module (21) to the cooling space (72).

7. The electromagnetic catapult device according to claim 1, characterized in that: The moving part cooling structure (721) includes a cold plate with a coolant flow channel inside. The cold plate is set at the moving part bearing surface in the cooling space (72). Its heat exchange surface is used to support the permanent magnet moving part module (21) and has micro-uneven surfaces that form sliding friction, so that the sliding permanent magnet moving part module (21) decelerates through friction and exchanges heat through contact with the bottom surface of the module shell. The cooling space (72) is provided with a non-contact temperature detection element (722) for detecting the surface temperature of at least two temperature measuring points on the shell of the permanent magnet moving part module (21) and taking the highest value among the detected temperatures of each temperature measuring point as the representative temperature of the module. When the representative temperature is not higher than the preset loading temperature threshold, the moving part return mechanism (73) transports the permanent magnet moving part module (21) to the loading part (8).

8. The electromagnetic catapult device according to claim 6, characterized in that: The mechanical transfer mechanism (714), the moving part return mechanism (73), and the loading part (8) are each equipped with the same type of clamping tool (9). Each clamping tool (9) has the same jaw structure, applicable clamping size range, and installation interface. The jaws open and close relative to each other to clamp the corresponding clamping area on the housing of the permanent magnet moving part module (21). The installation interface is connected to the end of the corresponding drive mechanism, so that each clamping tool (9) can complete the picking and placing actions of module removal, cooling and return, and reloading.

9. The electromagnetic catapult device according to claim 1, characterized in that: The stator assembly (1) includes a plurality of stator segments (11) arranged sequentially along the ejection direction (A); the stator cooling structure (6) includes a liquid cooling structure or an air cooling structure that is thermally connected to the stator assembly (1), and the liquid cooling structure or air cooling structure is arranged corresponding to each of the stator segments (11).

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