Sealed drive system and robot

Abstract

The utility model discloses a kind of sealing type driving systems and robot, sealing type driving system includes middle ring module, drive module and execution module;Middle ring module includes base shell and controller, controller is set on base shell;Drive module includes cover body, drive assembly, first magnetic component and second magnetic component, cover body and base shell connection seal connection jointly form sealed cavity, drive assembly and first magnetic component are respectively set in sealed cavity, drive end of drive assembly and first magnetic component are connected, second magnetic component is set in the side of cover body away from sealed cavity, and opposite with first magnetic component, first magnetic component is used to drive second magnetic component rotation by magnetic force;Execution module is connected with second magnetic component.The utility model realizes coupling between the both by magnetic force, to realize the power transmission of non-contact and ensure the sealing property of sealed cavity.Three modules of entire sealing type driving system are independently connected by standardization interface, convenient for quick disassembly and maintenance.

Description

Technical Field

[0001] This utility model relates to the technical field of sealed drive systems, and in particular to a sealed drive system and robot. Background Technology

[0002] With the development of automation technology and intelligent equipment, various robots (including industrial transport robots, automated guided robots, and service robot chassis) are placing higher demands on the performance and integration of sealed drive systems. Traditional sealed drive systems for robots typically use mechanical linkages for power transmission, involving various mechanical components such as drive shafts, gears, and couplings. While this type of structure can meet basic motion requirements, it has many limitations in terms of sealing performance, ease of maintenance, and structural expandability.

[0003] First, traditional sealed drive systems typically rely on physically contacting mechanical structures for power transmission. This leads to friction and wear between components, reducing system reliability and increasing maintenance and replacement frequency. Simultaneously, the long-term operation of mechanical parts can generate noise and vibration, impacting the robot's user experience. Furthermore, once the power transmission structure involves cavity sealing, it's often difficult to balance motion flexibility with sealing performance. Moisture, dust, and other impurities can easily enter the cavity, affecting the normal operation of core components, especially in specialized applications with high sealing requirements.

[0004] Secondly, traditional sealed drive systems are mostly integrated designs with complex structures and tight coupling between systems. This means that maintenance, upgrades, or functional expansion require complete disassembly, which is cumbersome, time-consuming, and labor-intensive, and makes modular production and standardized management difficult. This not only increases the cost of equipment manufacturing and maintenance but also limits the flexibility and scalability of sealed drive systems, making it difficult to meet diverse and customized application needs. Utility Model Content

[0005] One objective of this invention is to provide a sealed drive system and robot to solve the problems of sealing performance and disassembly / maintenance of sealed drive systems.

[0006] To achieve the above objectives, the present invention provides a solution as follows: a sealed drive system includes a central ring module, a drive module, and an execution module; the central ring module includes a base shell and a controller, with the controller mounted on the base shell; the drive module includes a cover, a drive assembly, a first magnetic assembly, and a second magnetic assembly, the cover and the base shell being sealed together to form a sealed cavity, the drive assembly and the first magnetic assembly being respectively disposed within the sealed cavity, the drive end of the drive assembly being connected to the first magnetic assembly, the second magnetic assembly being disposed on the side of the cover away from the sealed cavity and opposite to the first magnetic assembly, the first magnetic assembly being used to drive the second magnetic assembly to rotate via magnetic force; the execution module is connected to the second magnetic assembly.

[0007] Optionally, the drive module includes a first sealing ring, a first sealing groove is formed between the base shell and / or the cover, the first sealing ring is disposed in the first sealing groove, and the first sealing ring is clamped between the base shell and the cover.

[0008] Optionally, the cover includes a first shell, a second sealing ring, and a second shell. The first shell is connected to the base shell, and the first shell has a working opening. The second shell is connected to the first shell and covers the working opening. A second sealing groove is formed between the first shell and / or the second shell, and the second sealing ring is disposed in the second sealing groove and sandwiched between the first shell and the second shell.

[0009] Optionally, the drive assembly is connected to the second housing, and the first magnetic assembly and the second magnetic assembly are rotatably connected to the second housing, respectively.

[0010] Optionally, the first magnetic component includes a first bracket, a first bearing, and a plurality of first magnetic blocks. The first bracket is rotatably connected to the cover via the first bearing, and the plurality of first magnetic blocks are evenly spaced on the first bracket around the axis of rotation of the first bearing.

[0011] Optionally, the first magnetic component includes a plurality of first positioning bearings, which are evenly spaced around the shaft of the first bearing on the cover, and the plurality of first positioning shafts abut against the outer peripheral surface of the first bracket.

[0012] Optionally, the first magnetic component includes a first retaining ring connected to the cover, the first retaining ring surrounding a plurality of first positioning bearings, and the plurality of first positioning bearings abutting against the inner circumferential surface of the first retaining ring.

[0013] Optionally, the second magnetic component includes a second bracket, a second bearing, and a plurality of second magnetic blocks. The second bracket is rotatably connected to the cover via the second bearing. The plurality of second magnetic blocks are evenly spaced around the axis of rotation of the second bearing on the second bracket. The execution module is connected to the second bracket.

[0014] Optionally, the second magnetic component includes a plurality of second positioning bearings, which are evenly spaced around the shafts of the second bearings on the cover, and the plurality of second positioning shafts abut against the outer peripheral surface of the second bracket.

[0015] The beneficial effects of this utility model are as follows: The technical solution of this embodiment, through the innovative combination of the above-mentioned modular structure and magnetic drive method, effectively solves the technical problems of complex structure, inconvenient maintenance, poor sealing performance, and limited functional expansion of the existing sealed drive system. First, through the sealed cavity design formed by the base shell and the cover, the drive component and the first magnetic component are encapsulated in a sealed space, which greatly improves the sealing performance of the system and can effectively prevent the intrusion of impurities such as dust and moisture, thereby improving the reliability and applicability of the equipment, especially suitable for application scenarios with high sealing requirements. Second, the first magnetic component and the second magnetic component are magnetically coupled, and power transmission can be achieved without mechanical contact, avoiding the wear and energy consumption caused by mechanical friction in the traditional sealed drive system, extending the equipment life and reducing the maintenance frequency. Third, the modular design allows the central ring module, drive module, and execution module to be independently disassembled, replaced, and upgraded, greatly simplifying the maintenance process, improving the maintainability and flexibility of the system, and providing convenient conditions for functional expansion, which helps to achieve multi-purpose functionality. Finally, the standardized module interface design not only facilitates mass production and quality control and reduces production costs, but also improves the consistency and scalability of the overall system. Through the above optimizations, this embodiment achieves highly efficient power transmission with high sealing performance, contactless and low wear, and highly modular system integration, comprehensively improving the performance and application value of the sealed drive system. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the sealed drive system provided in an embodiment of the present invention;

[0018] Figure 2 This is provided by the embodiment of the present utility model. Figure 1 A schematic diagram of the cross-section along the II-II direction;

[0019] Figure 3 This is provided by the embodiment of the present utility model. Figure 2 A magnified view of a portion of region A in the middle;

[0020] Figure 4 This is provided by the embodiment of the present utility model. Figure 2 A schematic diagram of a three-dimensional cross-section along the IV-IV direction;

[0021] Figure 5 This is provided by the embodiment of the present utility model. Figure 2 A schematic diagram of a three-dimensional cross-section along the VV direction. (Illustration of reference numerals follows.)

[0022] Sealed cavity 16, middle ring module 10, base shell 12, controller 14, drive module 20, cover 21;

[0023] Drive component 22, first magnetic component 23, second magnetic component 24, first sealing ring 25;

[0024] First shell 211, second shell 212, second sealing ring 213, first bracket 231, first bearing 232; first magnetic block 233, first positioning bearing 234, first fixing ring 235, second bracket 241;

[0025] Second bearing 242, second magnetic block 243, second positioning bearing 244, execution module 30. Detailed Implementation

[0026] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings, clearly and comprehensively demonstrating the technical solution. It should be noted that the listed embodiments are only a part of this utility model, and not all possible implementations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Please see Figures 1 to 4 As shown, Figure 1 This is a schematic diagram of the sealed drive system provided in an embodiment of the present invention. Figure 2 This is provided by the embodiment of the present utility model. Figure 1 Schematic diagram of the cross section in the II-II direction. Figure 3 This is provided by the embodiment of the present utility model. Figure 2 A magnified view of a portion of region A in the middle. Figure 4 This is provided by the embodiment of the present utility model. Figure 2 A schematic diagram of the three-dimensional cross-section along the IV-IV direction. Figure 5 This is provided by the embodiment of the present utility model. Figure 2 A schematic diagram of a three-dimensional cross-section along the VV direction.

[0028] This application protects a robot, which includes a frame and a sealed drive system, the sealed drive system being connected to the frame and driving the frame to move.

[0029] This embodiment provides a sealed drive system, whose structure includes a central ring module 10, a drive module 20, and an execution module 30. It adopts a modular integrated design, balancing functional expansion and ease of maintenance. Specifically, the central ring module 10 includes a base shell 12 and a controller 14. The controller 14 is mounted on the base shell 12 and is responsible for the signal processing and control logic output functions of the entire system. The drive module 20 includes a cover 21, a drive component 22, a first magnetic component 23, and a second magnetic component 24. The cover 21 and the base shell 12 are connected in a sealed manner, forming a sealed cavity 16, effectively isolating the external environment from the internal components. The drive component 22 and the first magnetic component 23 are both arranged within the sealed cavity 16. The drive end of the drive component 22 is connected to the first magnetic component 23, enabling accurate power transmission to the first magnetic component 23. The second magnetic component 24 is located on the side of the cover 21 away from the sealed cavity 16 and opposite the first magnetic component 23, achieving coupling between them through magnetic force. When the drive assembly 22 drives the first magnetic assembly 23 to rotate, the first magnetic assembly 23 uses magnetic force to drive the second magnetic assembly 24 on the outside of the cover 21 to rotate synchronously, thereby achieving contactless power transmission and ensuring the sealing performance of the sealed cavity 16. The execution module 30 is connected to the second magnetic assembly 24 and uses the obtained rotational power to complete the predetermined execution action. The three main modules of the entire sealed drive system are independently connected through standardized interfaces, which facilitates quick disassembly and maintenance, and also allows for easy module replacement or expansion according to actual needs.

[0030] The technical solution of this embodiment effectively solves the technical problems of complex structure, inconvenient maintenance, poor sealing, and limited functional expansion of existing sealed drive systems through the innovative combination of the modular structure and magnetic drive method. First, the sealed cavity 16 formed by the base shell 12 and the cover 21 encapsulates the drive component 22 and the first magnetic component 23 in a sealed space, greatly improving the sealing performance of the system. This effectively prevents the intrusion of impurities such as dust and moisture, improving the reliability and applicability of the equipment, especially suitable for applications with high sealing requirements. Second, the first magnetic component 23 and the second magnetic component 24 are magnetically coupled, enabling power transmission without mechanical contact. This avoids the wear and energy consumption caused by mechanical friction in traditional sealed drive systems, extending the equipment life and reducing maintenance frequency. Third, the modular design allows the central ring module 10, drive module 20, and execution module 30 to be independently disassembled, replaced, and upgraded, greatly simplifying the maintenance process, improving the maintainability and flexibility of the system, and providing convenient conditions for functional expansion, thus helping to achieve multi-purpose functionality. Finally, the standardized module interface design not only facilitates mass production and quality control, reducing production costs, but also improves the overall system's consistency and scalability. Through the above optimizations, this embodiment achieves highly efficient power transmission with high sealing performance and low wear-free contact, as well as highly modular system integration, comprehensively enhancing the performance and application value of the sealed drive system.

[0031] This embodiment relates to a sealing structure for a drive module 20, the core of which lies in providing a first sealing ring 25 within the drive module 20 to improve the module's sealing performance. Specifically, a first sealing groove is formed between the base shell 12 and / or the cover 21 in the drive module 20, and the first sealing ring 25 is disposed within this first sealing groove. When the base shell 12 and the cover 21 are assembled, the first sealing ring 25 is clamped between the base shell 12 and the cover 21, and through its own elastic deformation, it tightly fits the contact surfaces of the base shell 12 and the cover 21, thereby effectively filling any possible tiny gaps between them and forming a reliable sealing barrier. This structure can be configured to place the first sealing groove at the mating part of the base shell 12, the cover 21, or the base shell 12 and the cover 21, depending on actual needs, ensuring the stable installation of the sealing ring and the sealing effect.

[0032] This technical solution provides an effective solution to the problems of insufficient sealing and susceptibility to external dust and moisture intrusion in existing drive modules 20 by setting a first sealing groove and a first sealing ring 25 between the base shell 12 and the cover 21. The first sealing ring 25, utilizing its elasticity and resilience, can be uniformly compressed after the base shell 12 and the cover 21 are assembled, thereby achieving a tight seal and effectively preventing external impurities from entering the drive module 20, improving the system's sealing performance and environmental adaptability. Compared with the traditional method of achieving sealing solely through the contact surfaces of components, this solution has a simpler structure and superior sealing effect, significantly reducing drive module 20 failures and maintenance needs caused by poor sealing, extending the equipment's service life, and improving system reliability and operational stability. Therefore, this embodiment effectively solves the technical problem of poor sealing in existing drive modules 20 by optimizing the sealing structure, achieving a highly efficient and reliable sealing effect. The first sealing ring 25 can be made of silicone, rubber, or foam.

[0033] This embodiment provides an improved cover structure 21 to enhance the sealing performance and maintenance convenience of the drive module 20. Specifically, the cover 21 includes a first shell 211, a second sealing ring 213, and a second shell 212. The first shell 211 is connected to the base shell 12 by mechanical fastening, snap-fit, or thread, serving as the interface component between the cover 21 and the base shell 12. The first shell 211 has a working port for assembling, debugging, repairing, or replacing internal components of the equipment. The second shell 212 is connected to the first shell 211, structurally covering and sealing the working port of the first shell 211, forming a complete outer shell of the cover 21. To further improve the sealing effect between the first shell 211 and the second shell 212, a second sealing groove is provided at the mating part of the first shell 211 and / or the second shell 212, and the second sealing ring 213 is disposed in the second sealing groove and clamped between the first shell 211 and the second shell 212 during installation. The second sealing ring 213 undergoes elastic deformation under pressure, which can effectively fill the tiny gaps at the joint of the two shells and achieve a reliable seal.

[0034] This technical solution effectively solves the problem of balancing maintenance convenience and sealing performance in traditional cover 21 structures through the separate design and sealing structure of the cover 21. Firstly, the separate structure of the first shell 211 and the second shell 212 allows operators to perform maintenance or component replacement by simply disassembling the second shell 212 through the working port, without needing to disassemble the entire cover 21, significantly improving maintenance efficiency and reducing maintenance difficulty. Secondly, the second sealing groove and second sealing ring 213 provided between the first shell 211 and the second shell 212 form a highly reliable sealing barrier at the junction of the two shells, effectively preventing external dust, moisture, and other impurities from seeping into the cover 21 through the working port, enhancing the protection capability of the drive module 20. Compared to traditional single-unit cover 21 or simple overlapping structures, this embodiment not only ensures high sealing performance and high reliability of the equipment but also takes into account the convenience of daily maintenance, thus achieving the technical effect of structural optimization and functional improvement. The second sealing ring 213 can be silicone, rubber, or foam.

[0035] This embodiment relates to a maintenance-friendly drive module 20 structure. Specifically, the drive assembly 22 is connected to the second housing 212 via screws, snap-fit ​​connections, or plug-in connections, achieving a secure installation of the drive assembly 22. The first magnetic assembly 23 and the second magnetic assembly 24 are rotatably connected to the second housing 212 via bearings, shafts, or other rotating connectors, and can rotate around their respective axes of rotation. This structural design allows the drive assembly 22 and the magnetic elements to form an integrated, detachable unit with the second housing 212.

[0036] During maintenance, the operator only needs to remove the second shell 212 from the first shell 211 or the base shell 12 to remove the drive assembly 22 and the two magnetic assemblies together. Since the first magnetic assembly 23 and the second magnetic assembly 24 are both connected to the second shell 212 by rotation, there is no need to perform complex disassembly or positioning of the magnetic assemblies during maintenance, which greatly simplifies the maintenance steps and avoids positioning errors and component damage caused by repeated disassembly and assembly.

[0037] This technical solution optimizes the traditional drive module 20 by connecting the drive assembly 22 to the second housing 212 and rotatably connecting the first magnetic assembly 23 and the second magnetic assembly 24 to the second housing 212. This addresses the problems of multi-step disassembly, complex magnetic assembly positioning, and susceptibility to damage or assembly errors during maintenance. This structure allows the drive assembly 22 and magnetic assemblies to be disassembled or assembled as a whole with the second housing 212, eliminating the need for separate handling of individual components. This significantly improves maintenance efficiency and ease of operation, and reduces the error rate during maintenance.

[0038] Furthermore, the rotatable connection between the first magnetic component 23 and the second magnetic component 24 and the second housing 212 ensures assembly accuracy and operational stability, avoiding positioning inaccuracies and wear problems caused by repeated disassembly. Overall, this technical solution solves the technical problems of inconvenient maintenance of the internal structure of the drive module 20 and cumbersome disassembly and assembly of magnetic components, achieving efficient and convenient maintenance of the drive component 22 and magnetic components, improving the maintainability and reliability of the product, and has good practical value and promotion prospects.

[0039] This embodiment provides a structural design for a first magnetic component 23 to improve the uniformity of the magnetic field distribution and the operational stability of the component. Specifically, the first magnetic component 23 includes a first support 231, a first bearing 232, and a plurality of first magnetic blocks 233. The first support 231 is rotatably connected to the cover 21 via the first bearing 232. The first bearing 232 provides low-friction and high-stability rotational support for the first support 231, allowing it to rotate smoothly relative to the cover 21. The plurality of first magnetic blocks 233 are evenly spaced and fixedly arranged around the axis of rotation of the first bearing 232 on the first support 231. Precise equal-spaced arrangement ensures that the positions of each magnetic block on the support are consistent. In actual assembly, the first bearing 232 can be first installed at the corresponding position on the cover 21, and then the first support 231 can be inserted into the cover 21 through the bearing, allowing it to rotate smoothly. Subsequently, the plurality of first magnetic blocks 233 are sequentially installed at designated positions on the first support 231 to achieve a uniform ring distribution. Other assembly sequences can also be used. This structure makes the first magnetic component 23 easy to assemble, and also easy to maintain and replace.

[0040] The first magnetic component 23, with the aforementioned structural design, effectively solves the problems of complex assembly, uneven magnetic block arrangement, unsatisfactory magnetic field distribution, and unstable operation of traditional magnetic components. Firstly, through the bearing rotational connection between the first support 231 and the cover 21, the component achieves stable, low-resistance rotational support during operation, significantly reducing energy consumption and wear caused by friction. Secondly, multiple first magnetic blocks 233 are evenly spaced and arranged around the axis of rotation on the first support 231, ensuring a uniform magnetic field distribution within the working area, effectively reducing vibration and noise during system operation, and improving the stability and efficiency of magnetic force output. Furthermore, the modular and standardized design simplifies assembly and maintenance processes, reducing the difficulty of manual operation and maintenance costs. In summary, this technical solution, by optimizing the structure of the first magnetic component 23, achieves convenient assembly, uniform magnetic field distribution, and high-efficiency and stable operation, thereby significantly improving the overall performance and reliability of the device.

[0041] This embodiment provides a structural design for improving the positioning accuracy and operational stability of a magnetic component. Specifically, the first magnetic component 23 includes multiple first positioning bearings 234, which are evenly spaced around the axis of rotation of the first bearing 232 on the cover 21. Each first positioning bearing 234 is precision-machined and installed in a designated positioning hole in the cover 21, and is evenly distributed along the axis of rotation of the first bearing 232 to form a ring support structure. During assembly, the first bracket 231 is rotatably connected to the cover 21 through the first bearing 232, and the multiple first positioning bearings 234 respectively abut against the outer peripheral surface of the first bracket 231 to form multi-point positioning support. In this way, the first bracket 231 is always uniformly guided and supported by the multiple first positioning bearings 234 when rotating, avoiding bracket swaying or offset, and effectively improving the coaxiality and operational stability of the component.

[0042] This technical solution effectively improves upon the technical problems of inaccurate bracket positioning, unstable operation, and swaying during rotation of traditional magnetic components by arranging multiple first positioning bearings 234 around the housing 21 and ensuring that these bearings are evenly spaced and abut against the outer circumference of the first support 231. Specifically, the annular distribution structure of the multiple first positioning bearings 234 provides uniform support and guidance for the first support 231 in multiple directions, significantly improving the positioning accuracy of the first support 231 and preventing radial displacement or swaying during rotation. This ensures the coaxiality of the first bearing 232's rotating shaft and the overall smooth operation of the component. Furthermore, the multi-point support structure disperses the radial load generated during operation, reducing wear on individual parts and extending the component's service life. In summary, this technical solution achieves high-precision positioning and stable operation of the first support 231 through the evenly arranged multiple first positioning bearings 234, significantly improving the assembly accuracy, reliability, and service life of the first magnetic component 23, thus enhancing the overall performance of the product.

[0043] This embodiment provides a structural design for improving the overall stability and positioning accuracy of the first magnetic component 23. Specifically, the first magnetic component 23 includes a first fixing ring 235, which is connected to the cover 21 and preferably firmly fixed to the inner wall of the cover 21 by means of screws, clips, or welding. The first fixing ring 235 has a ring-shaped structure and is arranged around the outer periphery of a plurality of first positioning bearings 234. The plurality of first positioning bearings 234 are evenly distributed on the inner periphery of the first fixing ring 235, and their outer surfaces abut against the inner circumferential surface of the first fixing ring 235, so that each positioning bearing forms a reliable contact support relationship with the first fixing ring 235. In the actual assembly process, the first fixing ring 235 is first installed in the designated position of the cover 21, and then the plurality of first positioning bearings 234 are sequentially installed on the inner circumferential surface of the first fixing ring 235, so that their outer surfaces are in close contact with the inner circumferential surface of the first fixing ring 235. Through this structural design, the plurality of first positioning bearings 234 can provide precise positioning and stable support for the subsequently assembled rotating or supporting components.

[0044] The above technical solution, by setting a first fixing ring 235 and having it surround multiple first positioning bearings 234, with the multiple first positioning bearings 234 abutting against the inner circumferential surface of the first fixing ring 235, effectively improves upon the problems of unstable positioning support, insufficient assembly accuracy, and easy radial wobble in existing technologies for magnetic components. On one hand, the reliable connection between the first fixing ring 235 and the cover 21 ensures the strength and rigidity of the overall structure, providing a stable mounting foundation for the positioning bearings. On the other hand, the multiple first positioning bearings 234 are evenly distributed on the inner circumferential surface of the first fixing ring 235, achieving multi-point annular support and limiting of the rotating parts, effectively preventing eccentricity, wobble, or offset of the bearings during operation. This multi-point support structure not only improves the assembly accuracy and operational stability of the components but also distributes the operating load, reduces local wear, and extends the service life of the bearings and related components. In summary, this technical solution, through the synergistic effect of the first fixing ring 235 and the multiple first positioning bearings 234, achieves high-precision positioning and high-stability support for the magnetic components, thereby improving the overall performance and reliability of the product.

[0045] This embodiment provides a structure for a second magnetic component 24, designed to improve the smoothness of rotation and the uniformity of the magnetic field distribution. Specifically, the second magnetic component 24 includes a second support 241, a second bearing 242, and a plurality of second magnetic blocks 243. The second support 241 is rotatably connected to the cover 21 via the second bearing 242, which provides low-friction support for the rotation of the second support 241. The plurality of second magnetic blocks 243 are mounted on the second support 241 at even intervals around the axis of rotation of the second bearing 242, and are typically fixed by means of slots, screws, or adhesives. The polarity and installation direction of each second magnetic block 243 are adjusted according to the overall design to form the desired annular magnetic field distribution.

[0046] One possible assembly method is to first place the second bearing 242 in the designated mounting position of the cover 21, and then assemble the second bracket 241 onto the second bearing 242 so that it can rotate freely around the axis. Subsequently, multiple second magnets 243 are installed on the outer periphery of the second bracket 241 at equally spaced angles, and finally the execution module 30 is fixed in the corresponding position of the second bracket 241 to achieve functional integration.

[0047] This technical solution effectively solves the technical problems of unstable rotation of magnetic components, uneven magnetic field distribution, and unreliable follow-up of functional modules in the prior art by uniformly arranging multiple second magnetic blocks 243 on the second support 241 and achieving a rotatable connection with the cover 21 through the second bearing 242. First, the uniform distribution of multiple second magnetic blocks 243 around the cover makes the magnetic field more uniform along the circumference, avoiding localized excessive or insufficient magnetic field strength, and improving the accuracy and consistency of the magnetic response. Second, the rotatable connection between the second support 241 and the cover 21 through the high-precision second bearing 242 ensures low friction and high coaxiality during rotation, greatly improving the stability and reliability of rotation. In summary, this technical solution achieves efficient and stable operation of the second magnetic component 24, obtaining the technical effects of a uniform magnetic field and reliable follow-up, significantly improving the overall performance and stability of the system.

[0048] This embodiment provides a structural design that optimizes the positioning and operational stability of a magnetic component. Specifically, the second magnetic component 24 includes a plurality of second positioning bearings 244. The plurality of second positioning bearings 244 are evenly arranged around the axis of rotation of the second bearing 242 at equal intervals on the cover 21. The orientation and position of each second positioning bearing 244 are precisely arranged, and its outer surface abuts against the outer peripheral surface of the second support 241.

[0049] In the specific assembly process, multiple second positioning bearings 244 are first installed in designated mounting positions on the housing 21, typically using screws, clips, or press-fit methods to ensure even distribution and consistent angles. Subsequently, the second bracket 241 is assembled into its designated position, forming annular contact support between its outer circumference and the outer surfaces of all the second positioning bearings 244. In this way, the second bracket 241 receives positioning and limiting support from multiple directions during rotation or operation, effectively preventing radial sway or offset and ensuring its coaxiality with the shaft of the second bearing 242.

[0050] This technical solution effectively solves the technical problems of unstable bracket positioning, easy swaying during operation, and axial and radial runout existing in existing magnetic assemblies by uniformly arranging multiple second positioning bearings 244 on the cover 21 and having their outer surfaces abut against the outer circumference of the second support 241. Specifically, the multiple second positioning bearings 244 form a multi-point annular support, ensuring that the second support 241 remains in a stable central position during rotation or movement, greatly improving its operational balance and coaxiality. This structure can significantly reduce friction, vibration, and noise caused by bracket eccentricity or swaying, improving the service life and operational reliability of the entire second magnetic assembly 24. At the same time, the uniformly distributed second positioning bearings 244 can also distribute the support load, preventing excessive wear at a single point, further enhancing the durability of the structure. In summary, this technical solution achieves high-precision positioning and high-stability operation of the second support 241 through multi-point positioning and limiting support, significantly improving the overall performance and technical effect of the magnetic assembly.

[0051] The execution module 30 can be a wheeled motion mechanism or a paddle-type motion mechanism. Driven by the second magnetic component 24, the execution module 30 rotates in a specific direction, thereby driving the frame to move on land or in water.

[0052] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0053] Furthermore, when an element is referred to as 'fixed to' or 'set on' another element, it may be directly attached to that element, or there may be other intervening elements between them. When an element is referred to as 'connected to' another element, it can be directly connected to the other element or indirectly connected to the other element through an intervening element.

[0054] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, the designation of features such as "first" and "second" can either explicitly express or imply the presence of at least one such feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0055] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A sealed drive system, characterized in that, The sealed drive system includes: The central ring module includes a base shell and a controller, wherein the controller is mounted on the base shell; A drive module includes a housing, a drive assembly, a first magnetic assembly, and a second magnetic assembly. The housing and the base shell are connected and sealed together to form a sealed cavity. The drive assembly and the first magnetic assembly are respectively disposed in the sealed cavity. The drive end of the drive assembly is connected to the first magnetic assembly. The second magnetic assembly is disposed on the side of the housing away from the sealed cavity and opposite to the first magnetic assembly. The first magnetic assembly is used to drive the second magnetic assembly to rotate via magnetic force. The execution module is connected to the second magnetic component.

2. The sealed drive system according to claim 1, characterized in that, The drive module includes a first sealing ring, and a first sealing groove is formed between the base shell and / or the cover. The first sealing ring is disposed in the first sealing groove and is clamped between the base shell and the cover.

3. The sealed drive system according to claim 1, characterized in that, The cover includes a first shell, a second sealing ring, and a second shell. The first shell is connected to the base shell. The first shell has a working opening. The second shell is connected to the first shell and covers the working opening. A second sealing groove is formed between the first shell and / or the second shell. The second sealing ring is disposed in the second sealing groove and is clamped between the first shell and the second shell.

4. The sealed drive system according to claim 3, characterized in that, The drive assembly is connected to the second shell, and the first magnetic assembly and the second magnetic assembly are rotatably connected to the second shell, respectively.

5. The sealed drive system according to any one of claims 1 to 4, characterized in that, The first magnetic component includes a first bracket, a first bearing, and a plurality of first magnetic blocks. The first bracket is rotatably connected to the cover via the first bearing, and the plurality of first magnetic blocks are evenly spaced on the first bracket around the axis of rotation of the first bearing.

6. The sealed drive system according to claim 5, characterized in that, The first magnetic component includes a plurality of first positioning bearings, which are evenly spaced around the shafts of the first bearings on the cover, and the plurality of first positioning shafts abut against the outer peripheral surface of the first bracket.

7. The sealed drive system according to claim 6, characterized in that, The first magnetic component includes a first retaining ring connected to the cover body. The first retaining ring surrounds a plurality of first positioning bearings, and the plurality of first positioning bearings abut against the inner circumferential surface of the first retaining ring.

8. The sealed drive system according to any one of claims 1 to 4, characterized in that, The second magnetic component includes a second bracket, a second bearing, and a plurality of second magnetic blocks. The second bracket is rotatably connected to the cover via the second bearing. The plurality of second magnetic blocks are evenly spaced around the axis of rotation of the second bearing on the second bracket. The execution module is connected to the second bracket.

9. The sealed drive system according to claim 8, characterized in that, The second magnetic component includes a plurality of second positioning bearings, which are evenly spaced around the shafts of the second bearings on the cover, and the plurality of second positioning shafts abut against the outer peripheral surface of the second bracket.

10. A robot, characterized in that, The robot includes: a frame and a sealed drive system as described in any one of claims 1 to 9, wherein the sealed drive system is connected to the frame.

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