A high-temperature sealed magnetic transmission device

Abstract

The present application discloses a high-temperature sealed magnetic transmission device, comprising a driving rotor assembly, a sealed isolation assembly, and a driven rotor assembly. The driving rotor assembly is axially provided with a first permanent magnet on its inner wall. The driven rotor assembly includes an energy storage rotor and a load rotor. A sliding protrusion is radially protruding outward on the outer wall of the energy storage rotor. A chute matching the sliding protrusion is circumferentially provided on the inner wall of the load rotor. The energy storage rotor is adapted to be rotatably connected to the load rotor via the sliding protrusion and the chute. A first soft magnet and a second soft magnet are axially provided on the outer walls of the energy storage rotor and the load rotor, respectively. The driving rotor assembly is adapted to achieve coupling between the first permanent magnet and the first soft magnet by driving the energy storage rotor to rotate. The present application aims to provide a high-temperature sealed magnetic transmission device that transmits large torque and is easy to start under high-temperature operating conditions.

Description

Technical Field

[0001] The present application relates to the field of magnetic transmission, and in particular to a high-temperature sealed magnetic transmission device. Background Art

[0002] At present, sealed magnetic transmission devices are usually used in scenarios with high sealing requirements. General mechanical seals use dynamic sealing methods, which are difficult to avoid leakage. Especially in high-temperature and high-pressure scenarios, the leakage is more serious. However, sealed magnetic transmission, since the driving shaft and the driven shaft interact through magnetic force, can use static sealing methods to improve the sealing performance, make the sealing effect better, and are not prone to leakage under high temperature and high pressure.

[0003] However, when the existing sealed magnetic transmission device is in a high temperature working condition, the transmission torque is small and it is difficult to start, which is a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] One object of the present application is to provide a high-temperature sealed magnetic transmission device that can transmit large torque and is easy to start under high-temperature conditions.

[0005] In order to achieve the above objectives, the technical solutions adopted in this application are:

[0006] A high-temperature sealed magnetic transmission device includes an active rotor assembly, a sealed isolation assembly, and a driven rotor assembly, wherein the active rotor assembly is connected to an input shaft, the driven rotor assembly is disposed within the sealed isolation assembly, a first permanent magnet being axially disposed on the inner wall of the active rotor assembly, and the driven rotor assembly including an energy storage rotor and a load rotor, the load rotor being connected to an output shaft and outputting torque, a sliding protrusion being radially outwardly protruding on the outer wall of the energy storage rotor, a sliding groove being circumferentially disposed on the inner wall of the load rotor and matching the sliding protrusion, the energy storage rotor being adapted to be rotatably connected to the load rotor via the sliding protrusion and the sliding groove, a first soft magnet and a second soft magnet corresponding to the first permanent magnet being axially disposed on the outer walls of the energy storage rotor and the load rotor, respectively, the active rotor assembly being adapted to drive the energy storage rotor to rotate through the coupling action of the first permanent magnet and the first soft magnet, and the sliding protrusion being adapted to generate a circumferential force and drive the load rotor to start, thereby achieving coupling between the first permanent magnet and the second soft magnet.

[0007] The sealed magnetic transmission device includes an active rotor assembly, a sealed isolation assembly and a driven rotor assembly, wherein the active rotor assembly is connected to the input shaft, the driving assembly generates power and drives the input shaft to rotate, thereby driving the active rotor assembly to rotate, and the driven rotor assembly is connected to the output shaft. Due to the coupling effect between the active rotor assembly and the driven rotor assembly, the active rotor assembly drives the driven rotor assembly to rotate, thereby driving the output shaft to rotate, and the sealed isolation assembly includes an isolation sleeve and a sealing flange. The inner wall of the isolation sleeve defines a third sealed chamber, and the driven rotor assembly is arranged in the third sealed chamber. The isolation sleeve contacts the container opening through the sealing flange, and achieves a better sealing effect through static sealing. The inner wall of the container defines a fourth sealed chamber, and the third sealed chamber is connected to the fourth sealed chamber. The high temperature and high pressure in the container will act on the third sealed chamber.

[0008] Sealed magnetic transmission usually has two schemes: planar magnetic transmission and coaxial magnetic transmission. The permanent magnets of planar magnetic transmission are arranged along the circumference, which is relatively easy to install, but the transmitted torque is small. If the torque needs to be increased, the relative area of ​​the active rotor assembly needs to be greatly increased; the permanent magnets of coaxial magnetic transmission are arranged along the axial direction, and the transmitted torque is larger. It is mostly used under high temperature, high pressure and high torque requirements. However, the coaxial magnetic transmission has another defect. When the temperature inside the container is high, the permanent magnets on the driven rotor assembly are prone to lose their magnetism, thereby losing the ability to transmit torque. The conventional solution is to replace the permanent magnets on the driven rotor assembly with soft magnets, and achieve coupling between the soft magnets and the permanent magnets through the hysteresis effect generated by the permanent magnets on the active rotor assembly. However, in actual production, this solution is not suitable for the case where the output shaft has a large load at startup, and the soft magnets are prone to "slipping" with the permanent magnets, that is, they are separated from the current coupling state, causing the soft magnets to repeatedly charge and discharge magnetism, so that the movement of the soft magnets is always irregularly staggered with the movement of the permanent magnets, and it is impossible to achieve coupling with the permanent magnets, let alone the effect of the active rotor assembly driving the driven rotor assembly.

[0009] The inventors of this application have developed a high-temperature sealed magnetic transmission device, in which the driven rotor assembly includes an energy storage rotor and a load rotor, wherein the load rotor is connected to the output shaft, and the energy storage rotor cooperates with the slide groove on the inner wall of the load rotor through a sliding protrusion to achieve a rotatable connection. Since the load rotor is connected to the output shaft, the torque it needs to overcome when starting is large, and the second soft magnet on it is easy to "slip" with the first permanent magnet, resulting in difficulty in starting; while the energy storage rotor only cooperates with the circumferentially arranged slide groove through the sliding protrusion, so the torque that the energy storage rotor needs to overcome when rotating is small. The torque is small and the starting is more convenient. Through the hysteresis effect and coupling effect of the first permanent magnet acting on the first soft magnet, the active rotor assembly can first drive the energy storage rotor to rotate, and the sliding protrusion on the energy storage rotor will generate a friction force in the opposite direction of the movement of the energy storage rotor. At this time, the reaction force of the friction force will drive the load rotor to rotate, thereby giving the load rotor a certain initial velocity, so that the second soft magnet on the load rotor can be coupled with the first permanent magnet, thereby preventing the occurrence of "slipping", reducing the difficulty of starting the driven rotor assembly, and making it easier to start under large resistance torque.

[0010] It is worth mentioning that, since the gas (or liquid) sealed in the container has inertia, if the load rotor has a certain initial velocity, the torque required for its startup will also become smaller, so it is less likely to "slip", avoiding repeated separation or entry into the coupling state, and preventing the movement of the second soft magnet from always being irregularly staggered with the movement of the first permanent magnet, resulting in its inability to start normally; in addition, due to the hysteresis effect of the second soft magnet, when it is not in a stable coupling state, the magnetism of the second soft magnet surface will repeatedly change, making the coupling more difficult, so it is necessary to avoid "slipping" between the load rotor and the active rotor assembly during the startup state, so that it can better transmit torque and be easier to start. Due to the effect of the sliding protrusion on the energy storage rotor, the load rotor will have a certain initial velocity, and this initial velocity will increase the time for the second soft magnet on the load rotor to couple with the first hard magnet on the active rotor assembly, making the magnetic change on the surface of the second soft magnet smaller, further reducing the difficulty of starting, and making it less likely for the two to "slip".

[0011] Further preferably, the chute includes at least two acceleration segments and a corresponding number of release segments, the acceleration segments being arranged circumferentially along the load rotor, the release segments being arranged axially along the load rotor, the acceleration segments and the release segments being spaced apart and connected end to end to form a closed ring; the active rotor assembly is adapted to drive the energy storage rotor to rotate circumferentially through the coupling action of the first permanent magnet and the first soft magnetic body, thereby driving the sliding protrusion to rotate circumferentially along the acceleration segments until it enters the release segments, and the sliding protrusion is adapted to abut against the inner wall of the release segments and release kinetic energy to drive the load rotor to accelerate. The acceleration segments and the release segments being spaced apart and connected end to end to form a closed ring means that the tail of the first acceleration segment is connected to the head of the first release segment, the tail of the first release segment is connected to the head of the second acceleration segment, the tail of the second acceleration segment is connected to the head of the second release segment, and the tail of the second release segment is connected to the head of the first acceleration segment. If there are more acceleration segments and a corresponding number of release segments, they are also spaced apart and connected end to end according to the above rule.

[0012] The chute includes at least two acceleration sections and a corresponding number of release sections, and the acceleration sections and the release sections are spaced apart and connected end to end to form a closed ring, which can make the kinetic energy obtained by the energy storage rotor more stable, and its protruding sliding protrusions can output kinetic energy more stably. Because the acceleration section is circumferentially disposed, as the sliding protrusion moves along the acceleration section, the energy storage rotor is gradually accelerated by the coupling action of the active rotor assembly. Consequently, the sliding protrusion also gradually accelerates along the acceleration section, and the frictional force exerted by the sliding protrusion on the acceleration section causes the load rotor to have a relatively low initial velocity. Furthermore, because the acceleration section is connected to the release section and the release section is axially disposed, when the sliding protrusion enters the release section from the acceleration section, it collides with the inner wall of the release section, releasing the kinetic energy accumulated by the sliding protrusion from its movement. This kinetic energy further accelerates the movement of the load rotor. Because the release section is axially disposed, the active rotor assembly outputs torque to the load rotor through the energy storage rotor until the sliding protrusion disengages the release section and enters the next acceleration section. In the next acceleration section, the sliding protrusion undergoes the same acceleration (kinetic energy storage)-collision (kinetic energy release) process, repeating until the load rotor and the energy storage rotor have the same rotational speed, with no speed difference between the two, and the sliding protrusion no longer rotating relative to the chute. At this point, the driven rotor assembly is stably coupled to the active rotor assembly, and the output shaft is successfully started. In addition, since the acceleration section is arranged along the circumferential direction, the acceleration section can only transmit torque through friction, which can reduce the load force of the energy storage rotor during the acceleration section and make it more convenient to start the energy storage rotor; since the release section is arranged along the axial direction, the release section can transmit the torque generated by the energy storage rotor, and due to the release of the kinetic energy of the energy storage rotor, the load rotor can start with a larger initial velocity; and when the load rotor does not start normally, there is always a speed difference between the energy storage rotor and the load rotor, which can enable the sliding protrusion to always release kinetic energy through the release section until the speed difference between the two disappears, and the driven rotor assembly and the active rotor assembly are stably coupled.

[0013] Further preferably, the acceleration section includes a first acceleration section and a second acceleration section, the first acceleration section and the second acceleration section are both parallel to the horizontal plane and staggered on the horizontal plane, and the second acceleration section is arranged above the first acceleration section; the release section includes a first release section and a second release section, the first release section extends along the axial and circumferential directions at the same time and connects the tail of the first acceleration section and the head of the second acceleration section, and the second release section also extends along the axial and circumferential directions at the same time and connects the tail of the second acceleration section and the head of the first acceleration section.

[0014] The first acceleration section and the second acceleration section are parallel to the horizontal plane and are staggered on the horizontal plane, which means that the head of the first acceleration section and the tail of the first acceleration section are both arranged on the same plane, and the plane is parallel to the horizontal plane, the head of the second acceleration section and the tail of the second acceleration section are also arranged on the same plane, and the plane is parallel to the horizontal plane, and the above two planes are parallel to each other, but are not in the same plane.

[0015] Another preferred embodiment is that the acceleration section includes a first acceleration section, a second acceleration section, a third acceleration section and a fourth acceleration section, and the release section includes a first release section, a second release section, a third release section and a fourth release section. The acceleration sections and the release sections are spaced apart and connected end to end to form a closed ring, wherein the first acceleration section and the third acceleration section are centrally symmetrically arranged on the left and right sides of the load rotor on the horizontal plane, the second acceleration section and the fourth acceleration section are centrally symmetrically arranged on the left and right sides of the load rotor on the horizontal plane, the second acceleration section is arranged above the first acceleration section, and the first, second, third and fourth release sections extend simultaneously in the axial and circumferential directions and are sequentially connected to the first, second, third and fourth acceleration sections.

[0016] Another preferred embodiment is that the acceleration section includes a first acceleration section and a second acceleration section, the first acceleration section and the second acceleration section are centrally symmetrically arranged on the left and right sides of the load rotor in a horizontal plane, and the first acceleration section and the second acceleration section are axially spirally arranged upward, with the number of spiral turns equal to 0.5 turns, and the tail of the first acceleration section is higher than the head of the first acceleration section. The release section includes a first release section and a second release section, the first release section extends axially and connects the tail of the first acceleration section and the head of the second acceleration section, and the second release section extends axially and connects the tail of the second acceleration section and the head of the first acceleration section.

[0017] Further preferably, two sliding protrusions are provided on the outer wall of the energy storage rotor protruding radially outward, and the sliding protrusions are symmetrically arranged on the left and right sides of the energy storage rotor and slide along the sliding groove.

[0018] Further preferably, a mounting portion is provided on the top of the energy storage rotor protruding radially outward, the first soft magnet is axially provided on the outer wall of the mounting portion, a second permanent magnet is axially provided on the lower portion of the mounting portion, and the second permanent magnet is provided on the upper portion of the sliding protrusion; the inner wall of the load rotor defines a first sealed cavity, the sliding groove is provided on the inner wall of the first sealed cavity, the sliding protrusion is suitable for moving along the sliding groove and changing the height of the energy storage rotor so that the second permanent magnet invades or detaches from the first sealed cavity.

[0019] Further preferably, a second sealed cavity is axially provided on the load rotor, the second sealed cavity is circumferentially arranged outside the first sealed cavity, a thermal insulation sleeve is installed in the second sealed cavity, the thermal insulation sleeve is suitable for limiting the influence of high temperature on the second permanent magnet; a buffer portion is provided on the top of the thermal insulation sleeve protruding radially outward, the buffer portion is suitable for limiting the axial impact on the load rotor when the energy storage rotor descends.

[0020] Further preferably, an oil storage tank is circumferentially provided at the top of the inner wall of the first sealed cavity, and lubricating oil is provided in the oil storage tank. The lubricating oil is suitable for controlling the friction between the energy storage rotor and the load rotor; an oil scraping portion is provided at the top of the inner wall of the first sealed cavity protruding radially inward. The oil scraping portion is provided above the oil storage tank and abuts against the outer wall of the energy storage rotor. The oil scraping portion is suitable for scraping off the lubricating oil adhering to the surface of the second permanent magnet.

[0021] Another preferred embodiment is that a third soft magnet is circumferentially arranged on the top of the energy storage rotor, and a third permanent magnet is correspondingly arranged on the active rotor assembly. The third permanent magnet is suitable for coupling with the third soft magnet and driving the energy storage rotor to rotate circumferentially.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] (1) The energy storage rotor and the load rotor used in this application cooperate to increase the initial velocity of the load rotor, which is beneficial for the mutual coupling of the first permanent magnet on the active rotor assembly and the first soft magnet and the second soft magnet on the driven rotor assembly, and prevents the "slip" phenomenon. It is also beneficial for the starting of the magnetic transmission device under high temperature conditions and prevents the problem of magnetic force drop and output torque reduction caused by the use of permanent magnets on the driven rotor assembly.

[0024] (2) A sliding protrusion is provided on the energy storage rotor, and a matching sliding groove is provided on the load rotor, which can reduce the load torque of the energy storage rotor during the startup process, so that the energy storage rotor can be stably coupled with the active rotor assembly during startup, so that the energy storage rotor assembly has a certain speed, and the friction force acting on the sliding groove can make the load rotor have a certain initial velocity, which facilitates the stable coupling of the second soft magnet and the first permanent magnet on the load rotor, thereby realizing the coupling and torque transmission of the magnetic transmission device under high temperature and high load conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a cross-sectional view of an embodiment of a high-temperature sealed magnetic transmission device of the present application, showing the position and structure of each component;

[0026] Figure 2An exploded view of an embodiment of a high-temperature sealed magnetic transmission device of the present application, showing a driving rotor assembly, a sealing isolation assembly, and a driven rotor assembly;

[0027] Figure 3 An exploded view of a driven rotor assembly of an embodiment of a high-temperature sealed magnetic transmission device of the present application, showing an energy storage rotor and a load rotor;

[0028] Figure 4 This is a schematic diagram of the chute of Example 1 of the high-temperature sealed magnetic transmission device of the present application, showing the acceleration section and the release section;

[0029] Figure 5 This is a schematic diagram of the chute of Example 2 of the high-temperature sealed magnetic transmission device of the present application, showing the acceleration section and the release section;

[0030] Figure 6 This is a schematic diagram of the chute of Example 3 of the high-temperature sealed magnetic transmission device of the present application, showing the acceleration section and the release section;

[0031] Figure 7 A half-section view of an embodiment of a high-temperature sealed magnetic transmission device of the present application, showing a first sealed cavity and a second sealed cavity;

[0032] Figure 8a A partial cross-sectional view of an embodiment of a driven rotor assembly of a high-temperature sealed magnetic transmission device of the present application, showing the energy storage rotor in the lowest position;

[0033] Figure 8b A partial cross-sectional view of an embodiment of a driven rotor assembly of a high-temperature sealed magnetic transmission device of the present application, showing the energy storage rotor in the highest position;

[0034] Figure 9a A cross-sectional view of an embodiment of a driven rotor assembly of a high-temperature sealed magnetic transmission device of the present application, showing the energy storage rotor in the lowest position;

[0035] Figure 9b A cross-sectional view of an embodiment of a driven rotor assembly of a high-temperature sealed magnetic transmission device of the present application, showing the energy storage rotor in the highest position;

[0036] Figure 10 This is a partial enlarged view of position A of the high-temperature sealed magnetic transmission device of the present application, showing the oil storage tank and the oil hanging part;

[0037] Figure 11 A schematic diagram of an embodiment of an energy storage rotor of a high-temperature sealed magnetic transmission device of the present application, showing a sliding protrusion;

[0038] Figure 12A top view of an embodiment of an energy storage rotor of a high-temperature sealed magnetic transmission device of the present application, showing a third soft magnetic body;

[0039] Figure 13 A schematic diagram of an embodiment of an active rotor assembly of a high-temperature sealed magnetic transmission device of the present application;

[0040] Figure 14 A top view of an embodiment of an active rotor assembly of a high-temperature sealed magnetic transmission device of the present application, showing a third permanent magnet;

[0041] Figure 15 This is a cross-sectional view of an embodiment of an active rotor assembly of a high-temperature sealed magnetic transmission device of the present application, showing a first permanent magnet.

[0042] In the figure: 1, active rotor assembly; 11, first permanent magnet; 12, third permanent magnet; 2, sealing isolation assembly; 21, third sealing chamber; 22, sealing flange; 23, isolation sleeve; 3, driven rotor assembly; 31, energy storage rotor; 311, sliding protrusion; 312, first soft magnet; 313, second permanent magnet; 314, mounting portion; 315, third soft magnet; 32, load rotor; 321, chute; 3211, acceleration section; 3211a, first acceleration section; 3211b, second acceleration section; 3 211c, third acceleration section; 3211d, fourth acceleration section; 3212, release section; 3212a, first release section; 3212b, second release section; 3212c, third release section; 3212d, fourth release section; 322, second soft magnetic body; 323, first sealed chamber; 3231, oil storage tank; 3232, oil scraping part; 324, second sealed chamber; 33, thermal insulation sleeve; 331, buffer part; 100, container; 101, fourth sealed chamber; 200, input shaft; 300, output shaft. DETAILED DESCRIPTION

[0043] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0044] In the description of this application, it should be noted that for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, the directions and positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of this application.

[0045] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0046] The terms "comprises" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0047] Sealed magnetic transmission devices such as Figure 1 As shown, it includes an active rotor assembly 1, a sealing isolation assembly 2 and a driven rotor assembly 3, wherein the active rotor assembly 1 is connected to the input shaft 200, the driving assembly generates power and drives the input shaft 200 to rotate, thereby driving the active rotor assembly 1 to rotate, and the driven rotor assembly 3 is connected to the output shaft 300. Due to the coupling effect between the active rotor assembly 1 and the driven rotor assembly 3, the active rotor assembly 1 drives the driven rotor assembly 3 to rotate, thereby driving the output shaft 300 to rotate, and the sealing isolation assembly 2 includes an isolation sleeve 23 and a sealing flange 22. The inner wall of the isolation sleeve 23 defines a third sealed cavity 21. The driven rotor assembly 3 is arranged in the third sealed cavity 21. The isolation sleeve 23 contacts the opening of the container 100 through the sealing flange 22, and a better sealing effect is achieved through static sealing. The inner wall of the container 100 defines a fourth sealed cavity 101. The third sealed cavity 21 is connected to the fourth sealed cavity 101. The high temperature and high pressure in the container 100 will act on the third sealed cavity 21.

[0048] Sealed magnetic transmission usually has two schemes: planar magnetic transmission and coaxial magnetic transmission. The permanent magnets of planar magnetic transmission are arranged along the circumferential direction, which is convenient for installation, but the transmitted torque is small. If the torque needs to be increased, the relative area of ​​the active rotor assembly 1 needs to be greatly increased; the permanent magnets of coaxial magnetic transmission are arranged along the axial direction, which transmits a larger torque and is mostly used under high temperature, high pressure and high torque requirements. However, the coaxial magnetic transmission has another defect. When the temperature inside the container 100 is high, the permanent magnets on the driven rotor assembly 3 are prone to lose their magnetism, thereby losing the ability to transmit torque. The conventional solution is to replace the permanent magnets on the driven rotor assembly 3 with soft magnets, and achieve coupling between the soft magnets and the permanent magnets through the hysteresis effect generated by the permanent magnets on the active rotor assembly 1. However, in actual production, this solution is not suitable for use with the permanent magnets. Since the load on the output shaft 300 is large at startup, the soft magnets are prone to "slipping" with the permanent magnets, that is, they are separated from the current coupling state, causing the soft magnets to repeatedly charge and discharge magnetism, so that the movement of the soft magnets is always irregularly staggered with the movement of the permanent magnets, and it is impossible to achieve coupling with the permanent magnets, let alone the effect of the active rotor assembly 1 driving the driven rotor assembly 3.

[0049] Based on this, the inventors of this application have developed a high temperature sealed magnetic transmission device, one embodiment of which is as follows: Figures 1 to 15 As shown, it includes an active rotor assembly 1, a sealed isolation assembly 2, and a driven rotor assembly 3. The active rotor assembly 1 is connected to the input shaft 200. The sealed isolation assembly 2 is provided in the driven rotor assembly 3. The inner wall of the active rotor assembly 1 is provided with a first permanent magnet 11 along the axial direction. The driven rotor assembly 3 includes an energy storage rotor 31 and a load rotor 32. The load rotor 32 is connected to the output shaft 300 and outputs torque. The outer wall of the energy storage rotor 31 is provided with a sliding protrusion 311 protruding radially outward. The inner wall of the load rotor 32 is provided with a sliding groove matching the sliding protrusion 311 along the circumferential direction. 321, the energy storage rotor 31 is suitable for being rotatably connected to the load rotor 32 through the sliding protrusion 311 and the slide groove 321. The outer walls of the energy storage rotor 31 and the load rotor 32 are respectively provided with a first soft magnet 312 and a second soft magnet 322 corresponding to the first permanent magnet 11 in the axial direction. The active rotor assembly 1 is suitable for driving the energy storage rotor 31 to rotate through the coupling action of the first permanent magnet 11 and the first soft magnet 312, and the sliding protrusion 311 is suitable for generating a circumferential force and driving the load rotor 32 to start, thereby realizing the coupling between the first permanent magnet 11 and the second soft magnet 322.

[0050] The inventors of the present application have developed a high-temperature sealed magnetic transmission device, in which the driven rotor assembly 3 includes an energy storage rotor 31 and a load rotor 32, wherein the load rotor 32 is connected to the output shaft 300, and the energy storage rotor 31 cooperates with the slide groove 321 on the inner wall of the load rotor 32 through the sliding protrusion 311 to achieve a rotatable connection. Since the load rotor 32 is connected to the output shaft 300, the torque it needs to overcome when starting is large, and the second soft magnetic body 322 thereon is easy to "slip" with the first permanent magnet 11, resulting in difficulty in starting; while the energy storage rotor 31 only cooperates with the slide groove 321 arranged circumferentially through the sliding protrusion 311, so when the energy storage rotor 31 rotates The torque that needs to be overcome is small, and starting is relatively convenient. Through the hysteresis effect and coupling effect of the first permanent magnet 11 acting on the first soft magnet 312, the active rotor assembly 1 can first drive the energy storage rotor 31 to rotate, and the sliding protrusion 311 on the energy storage rotor 31 will generate a friction force in the opposite direction of the movement of the energy storage rotor 31. At this time, the reaction force of the friction force will drive the load rotor 32 to rotate, thereby giving the load rotor 32 a certain initial velocity, so that the second soft magnet 322 on the load rotor 32 is coupled with the first permanent magnet 11, thereby preventing the occurrence of "slipping", reducing the difficulty of starting the driven rotor assembly 3, and making it easier to start under large resistance torque.

[0051] It is worth mentioning that since the gas (or liquid) sealed in the container 100 has inertia, if the load rotor 32 has a certain initial velocity, the torque required for its startup will also become smaller, so it is less likely to "slip", avoiding repeated disengagement or entering the coupling state, and preventing the movement of the second soft magnet 322 from always being irregularly staggered with the movement of the first permanent magnet 11, resulting in its inability to start normally; in addition, due to the hysteresis effect of the second soft magnet 322, when it is not in a stable coupling state, the magnetism on the surface of the second soft magnet 322 will repeatedly change, making the coupling more difficult, so it is necessary to avoid "slipping" between the load rotor 32 and the active rotor assembly 1 in the startup state, so that it can better transmit torque and be easier to start. Due to the action of the sliding protrusion 311 on the energy storage rotor 31, the load rotor 32 will have a certain initial velocity, which will increase the time for the second soft magnet 322 on the load rotor 32 to couple with the first hard magnet 11 on the active rotor assembly 1, making the magnetic change on the surface of the second soft magnet 322 smaller, further reducing the starting difficulty, and making it less likely for the two to "slip".

[0052] More preferably, Figures 4 to 7As shown, the chute 321 includes at least two acceleration sections 3211 and a corresponding number of release sections 3212. The acceleration sections 3211 are arranged along the circumference of the loaded rotor 32, and the release sections 3212 are arranged along the axial direction of the loaded rotor 32. The acceleration sections 3211 and the release sections 3212 are spaced apart and connected end to end to form a closed ring. The active rotor assembly 1 is suitable for driving the energy storage rotor 31 to rotate circumferentially through the coupling action of the first permanent magnet 11 and the first soft magnet 312, thereby driving the sliding protrusion 311 to rotate circumferentially along the acceleration section 3211 until it enters the release section 3212. The sliding protrusion 311 is suitable for contacting the inner wall of the release section 3212 and releasing kinetic energy to drive the loaded rotor 32 to accelerate. The acceleration section 3211 and the release section 3212 are spaced apart and connected end to end to form a closed ring, which means that the tail of the first acceleration section 3211a is connected to the head of the first release section 3212a, the tail of the first release section 3212a is connected to the head of the second acceleration section 3211b, the tail of the second acceleration section 3211b is connected to the head of the second release section 3212b, and the tail of the second release section 3212b is connected to the head of the first acceleration section 3211a. If there are more acceleration sections 3211 and a corresponding number of release sections 3212, they are also spaced apart and connected end to end according to the above rules. In addition, for ease of understanding, Figures 4 to 7 In the figure, the visible lines of the inner wall of the load rotor 32 are hidden, and the dotted line portion shows the shape and positional relationship of the acceleration section 3211 or the release section 3212.

[0053] The chute 321 includes at least two acceleration sections 3211 and a corresponding number of release sections 3212, and the acceleration sections 3211 and the release sections 3212 are arranged at intervals and connected end to end to form a closed ring, so that the kinetic energy obtained by the energy storage rotor 31 can be more stable, and its protruding sliding protrusion 311 can output kinetic energy more stably. Since the acceleration section 3211 is arranged along the circumferential direction, when the sliding protrusion 311 moves along the acceleration section 3211, the energy storage rotor 31 is gradually accelerated by the coupling effect of the active rotor assembly 1, so the sliding protrusion 311 is also gradually accelerated along the acceleration section 3211, and the friction force of the sliding protrusion 311 acting on the acceleration section 3211 makes the load rotor 32 have a smaller initial velocity, and since the acceleration section 3211 is connected to the release section 3212, and the release section 3212 is arranged along the axial direction; when the sliding protrusion 311 enters the release section 3212 from the acceleration section 3211, the sliding protrusion 311 will collide with the inner wall of the release section 3212 and release the kinetic energy accumulated by the sliding protrusion 311 due to the movement. This kinetic energy will further accelerate the movement of the load rotor 32. Since the release section 3212 is arranged axially, the active rotor assembly 1 will output torque to the load rotor 32 through the energy storage rotor 31 until the sliding protrusion 311 breaks away from the release section 3212 and enters the next acceleration section 3211. In the other acceleration section 3211, the sliding protrusion 311 will also go through the process of acceleration (storing kinetic energy)-collision (releasing kinetic energy), and repeat this process until the load rotor 32 and the energy storage rotor 31 have the same speed, there is no speed difference between the two, and the sliding protrusion 311 will not rotate relative to the slide slot 321. At this time, the driven rotor assembly 3 is stably coupled with the active rotor assembly 1, and the output shaft 300 is successfully started. In addition, since the acceleration section 3211 is arranged along the circumferential direction, the acceleration section 3211 can only transmit torque through friction, which can reduce the load force of the energy storage rotor 31 during the acceleration section 3211 and facilitate the startup of the energy storage rotor 31. Since the release section 3212 is arranged along the axial direction, the release section 3212 can transmit the torque generated by the energy storage rotor 31, and due to the release of the kinetic energy of the energy storage rotor 31, the load rotor 32 can start with a larger initial velocity. Moreover, when the load rotor 32 does not start normally, there is always a speed difference between the energy storage rotor 31 and the load rotor 32, which can enable the sliding protrusion 311 to always release kinetic energy through the release section 3212 until the speed difference between the two disappears, and the driven rotor assembly 3 and the active rotor assembly 1 are stably coupled.

[0054] Example 1: Figure 4As shown, the acceleration section 3211 includes a first acceleration section 3211a and a second acceleration section 3211b. The first acceleration section 3211a and the second acceleration section 3211b are both parallel to the horizontal plane and are staggered on the horizontal plane, and the second acceleration section 3211b is arranged above the first acceleration section 3211a; the release section 3212 includes a first release section 3212a and a second release section 3212b. The first release section 3212a extends along the axial and circumferential directions at the same time and connects the tail of the first acceleration section 3211a and the head of the second acceleration section 3211b. The second release section 3212b also extends along the axial and circumferential directions at the same time and connects the tail of the second acceleration section 3211b and the head of the first acceleration section 3211a.

[0055] The first acceleration section 3211a and the second acceleration section 3211b are parallel to the horizontal plane and are staggered on the horizontal plane, which means that the head of the first acceleration section 3211a and the tail of the first acceleration section 3211a are both arranged on the same plane, and the plane is parallel to the horizontal plane, and the head of the second acceleration section 3211b and the tail of the second acceleration section 3211b are also both arranged on the same plane, and the plane is parallel to the horizontal plane, and the above two planes are parallel to each other, but are not in the same plane. When the sliding protrusion 311 rotates clockwise and enters the first release section 3212a from the first acceleration section 3211a, the sliding protrusion 311 contacts the side wall of the first release section 3212a and, through the action of the first release section 3212a extending both axially and longitudinally, drives the load rotor 32 to rotate. Simultaneously, the sliding protrusion 311 moves upward under the action of the first release section 3212a. Subsequently, the sliding protrusion 311 accelerates in the second acceleration section 3211b and eventually enters the second release section 3212b. Under the action of the second release section 3212b, the sliding protrusion 311 moves downward, releasing its kinetic energy and driving the load rotor 32 to rotate. If the load rotor 32 does not achieve a stable coupling state, it continues to drive the active rotor assembly 1 to rotate, and can continue to drive the energy storage rotor 31 to repeat the above process until there is no speed difference between the energy storage rotor 31 and the load rotor 32 and the sliding protrusion 311 stops sliding in the slide groove 321.

[0056] The first release section 3212a and the second release section 3212b extend in the axial and circumferential directions at the same time, which can facilitate the connection of the first acceleration section 3211a and the second acceleration section 3211b in different planes. In addition, since the sliding protrusion 311 moves along the release section 3212, the movement direction can be regarded as a composite movement along the circumferential direction and the axis. This can prevent the occurrence of a "suffocation" situation when the initial speed is insufficient in the first few times due to excessive load, because the sliding protrusion 311 and the release section 3212 cannot produce relative displacement, causing the energy storage rotor 31 to fail to function normally.

[0057] Example 2: Figure 5 As shown, the acceleration section 3211 includes a first acceleration section 3211a, a second acceleration section 3211b, a third acceleration section 3211c and a fourth acceleration section 3211d, and the release section 3212 includes a first release section 3212a, a second release section 3212b, a third release section 3212c and a fourth release section 3212d. The acceleration sections 3211 and the release section 3212 are arranged at intervals and connected end to end to form a closed ring, wherein the first acceleration section 3211a and the third acceleration section 3211c are arranged symmetrically on the horizontal plane around the load rotor 32 On the left and right sides of the load rotor 32, the second acceleration section 3211b and the fourth acceleration section 3211d are centrally symmetrically arranged on the left and right sides of the load rotor 32 in the horizontal plane. The second acceleration section 3211b is arranged above the first acceleration section 3211a. The first release section 3212a, the second release section 3212b, the third release section 3212c, and the fourth release section 3212d extend simultaneously in the axial direction and the circumferential direction and are sequentially connected to the first acceleration section 3211a, the second acceleration section 3211b, the third acceleration section 3211c, and the fourth acceleration section 3211d. Connected in sequence means that the first acceleration section 3211a and the second acceleration section 3211b are connected through the first release section 3212a, the second acceleration section 3211b and the third acceleration section 3211c are connected through the second release section 3212b, the third acceleration section 3211c and the fourth acceleration section 3211d are connected through the third release section 3212c, and the fourth acceleration section 3211d and the first acceleration section 3211a are connected through the fourth release section 3212d.

[0058] Setting up four acceleration sections 3211 and four release sections 3212 has two advantages. First, two symmetrically arranged sliding protrusions 311 can be used. Moreover, since the first acceleration section 3211a and the third acceleration section 3211c are centrally symmetrically arranged, and the second acceleration section 3211b and the fourth acceleration section 3211d are centrally symmetrically arranged, and similarly, the first release section 3212a and the third release section 3212c are centrally symmetrically arranged, and the second release section 3212b and the fourth release section 3212d are also centrally symmetrically arranged, the sliding protrusion 311 will not generate an overturning moment when moving in the slide groove 321, causing the load rotor 32 to be stuck. Second, the four acceleration sections 3211 and the four release sections 3212 can make the kinetic energy output of the energy storage rotor 31 on the load rotor 32 smoother, making it easier for the load rotor 32 to obtain a higher initial speed, thereby achieving coupling between the second soft magnet 322 and the first permanent magnet 11.

[0059] Example 3: Figure 6As shown, the acceleration section 3211 includes a first acceleration section 3211a and a second acceleration section 3211b. The first acceleration section 3211a and the second acceleration section 3211b are centrally symmetrically arranged on the left and right sides of the load rotor 32 in a horizontal plane. The first acceleration section 3211a and the second acceleration section 3211b are spirally arranged upward along the axial direction, with the number of spiral turns equal to 0.5 turns. The tail of the first acceleration section 3211a is higher than the head of the first acceleration section 3211a. The release section 3212 includes a first release section 3212a and a second release section 3212b. The first release section 3212a extends axially and connects the tail of the first acceleration section 3211a and the head of the second acceleration section 3211b. The second release section 3212b extends axially and connects the tail of the second acceleration section 3211b and the head of the first acceleration section 3211a.

[0060] In this specific embodiment, the first acceleration section 3211a and the second acceleration section 3211b are arranged symmetrically on the left and right sides of the load rotor 32 in a horizontal plane and are arranged in an axial spiral upward direction. At this time, the sliding protrusion 311 will accelerate and increase in height in the spiral upward acceleration section 3211. At this time, the sliding protrusion 311 can transmit a small torque. When it is at the tail of the acceleration section 3211, since its tail height is higher than the head height, the direction of the release section 3212 is vertically downward. Under the action of gravity, the sliding protrusion 311 will naturally fall to the tail of the release section 3212. During this process, the sliding protrusion 311 rotates circumferentially. The kinetic energy will be completely converted into the kinetic energy of the load rotor 32, and a certain initial speed will be provided to the load rotor 32. In this process, the torque of the first permanent magnet 11 acting on the energy storage rotor 31 will be completely transferred to the load rotor 32, so as to maximize the utilization rate of the torque. If the load rotor 32 is not started smoothly during the first entry into the release section 3212, so that the second soft magnet 322 and the first permanent magnet 11 are in a stable coupling state, the sliding protrusion 311 will quickly break away from the release section 3212 due to the effect of gravity and enter the next acceleration cycle. The starting efficiency of the chute 321 used in this embodiment is high and it is not easy to get stuck. Figure 8a As shown, when the sliding protrusion 311 is located at the head of the acceleration section 3211, the energy storage rotor 31 is at the lowest position; Figure 8b It is shown that when the sliding protrusion 311 is located at the tail of the acceleration section 3211, the energy storage rotor 31 rotates 180 degrees and is at the highest position. Under the action of gravity, the sliding protrusion 311 will automatically move from Figure 8b Status switched to Figure 8a state.

[0061] More preferably, Figure 11As shown, two sliding protrusions 311 are provided on the outer wall of the energy storage rotor 31 protruding radially outward. The sliding protrusions 311 are symmetrically arranged on the left and right sides of the energy storage rotor 31 and slide along the sliding groove 321 .

[0062] The provision of two sliding protrusions 311 can prevent the energy storage rotor 31 from generating an overturning moment during its rotation, thereby preventing the sliding protrusion 311 from being stuck with the sliding groove 321 .

[0063] More preferably, Figure 11 As shown, a mounting portion 314 is provided on the top of the energy storage rotor 31 protruding radially outward, a first soft magnet 312 is axially provided on the outer wall of the mounting portion 314, a second permanent magnet 313 is axially provided on the lower portion of the mounting portion 314, and the second permanent magnet 313 is provided on the upper portion of the sliding protrusion 311; the inner wall of the load rotor 32 defines a first sealed cavity 323, a sliding groove 321 is provided on the inner wall of the first sealed cavity 323, and the sliding protrusion 311 is suitable for moving along the sliding groove 321 and changing the height of the energy storage rotor 31, so that the second permanent magnet 313 invades or detaches from the first sealed cavity 323.

[0064] like Figure 9a and Figure 9b As shown, due to the shape of the chute 321, the sliding protrusion 311 can slide in the chute 321 to achieve the position height change of the energy storage rotor 31. Figure 9a and Figure 8a Correspondingly, it shows that the sliding protrusion 311 is located at the head of the acceleration section 3211, and the energy storage rotor 31 is at the lowest position; Figure 9b and Figure 8b Correspondingly, it is shown that the sliding protrusion 311 is located at the tail of the acceleration section 3211, and the energy storage rotor 31 is at the highest position.

[0065] A second permanent magnet 313 is provided at the lower portion of the mounting portion 314. When in the lowest position, the second permanent magnet 313 is in the first sealed cavity 323. Due to the thermal insulation effect of the first sealed cavity 323, the second permanent magnet 313 does not lose its magnetic force. When in the highest position, the second permanent magnet 313 is separated from the first sealed cavity 323, thereby increasing the coupling effect between the driven rotor assembly 3 and the active rotor assembly 1, thereby reducing the difficulty of starting the driven rotor assembly 3 and preventing "slipping".

[0066] More preferably, Figure 7 and Figure 9bAs shown, a second sealed cavity 324 is axially provided on the load rotor 32. The second sealed cavity 324 is circumferentially arranged outside the first sealed cavity 323. A thermal insulation sleeve 33 is installed in the second sealed cavity 324. The thermal insulation sleeve 33 is suitable for limiting the influence of high temperature on the second permanent magnet 313. A buffer portion 331 is provided on the top of the thermal insulation sleeve 33, which protrudes radially outward. The buffer portion 331 is suitable for limiting the axial impact on the load rotor 32 caused by the energy storage rotor 31 when it descends.

[0067] The insulation sleeve 33 has two functions: first, it reduces the influence of high temperature outside on the second permanent magnet 313 in the first sealed cavity 323; second, it isolates the interaction between the second soft magnet 322 and the second permanent magnet 313, preventing the second soft magnet 322 from being magnetized by the second permanent magnet 313 and affecting the subsequent coupling effect. Figure 11 As shown, due to the hysteresis effect of the first permanent magnet 11 on the active rotor assembly 1, the first soft magnetic body 312 on the energy storage rotor 31 is magnetized to show the N-level or S-level coupled thereto, which are arranged at intervals; the NS-level on the second permanent magnet 313 is also arranged at intervals corresponding to the arrangement of the first permanent magnet 11. This increases the torque transmission effect of the energy storage rotor 31 in the release section 3212, making it easier to start the load rotor 32. The arrangement of the first permanent magnet is as shown in FIG. Figure 15 shown.

[0068] More preferably, Figure 10 As shown, an oil storage groove 3231 is circumferentially provided at the top of the inner wall of the first sealed cavity 323. Lubricating oil is provided in the oil storage groove 3231. The lubricating oil is suitable for controlling the friction between the energy storage rotor 31 and the load rotor 32. An oil scraper 3232 is provided at the top of the inner wall of the first sealed cavity 323, protruding radially inward. The oil scraper 3232 is provided above the oil storage groove 3231 and contacts the outer wall of the energy storage rotor 31. The oil scraper 3232 is suitable for scraping off the lubricating oil adhering to the surface of the second permanent magnet 313.

[0069] An oil storage tank 3231 is provided for storing lubricating oil, which can provide a thermal insulation effect on the first sealed cavity 323, further reducing the impact of temperature on the second permanent magnet 313. The lubricating oil can also lubricate the friction between the energy storage rotor 31 and the upper portion of the load rotor 32, thereby reducing torque waste. The oil scraping portion 3232 has a certain degree of elasticity and is suitable for scraping the lubricating oil on the second permanent magnet 313 to prevent the coupling effect from being reduced.

[0070] Another preferred option is Figure 11 and Figure 12 As shown, a third soft magnet 315 is circumferentially arranged on the top of the energy storage rotor 31, and a third permanent magnet 12 is correspondingly arranged on the active rotor assembly 1. The third permanent magnet 12 is suitable for coupling with the third soft magnet 315 and driving the energy storage rotor 31 to rotate circumferentially.

[0071] The third permanent magnet 12 and the third soft magnet 315 are used to increase the coupling force, so that the driven rotor assembly 3 can be started more easily under high temperature and high load conditions. In addition, for the driven rotor assembly 3 in Example 3, since it is at the head of the release section 3212, the energy storage rotor 31 is at the highest position, and the third soft magnet 315 thereon is closest to the third permanent magnet 12, and the coupling force is the largest, which can increase its coupling force in the release section 3212, increase the initial speed of the load rotor 32, and prevent it from "slipping".

[0072] The above describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments. The above-described embodiments and the specification merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A high-temperature sealed magnetic transmission device, comprising a driving rotor assembly, a sealed isolation assembly, and a driven rotor assembly, wherein the driving rotor assembly is connected to an input shaft, and the driven rotor assembly is disposed within the sealed isolation assembly, characterized in that: A first permanent magnet is axially arranged on the inner wall of the active rotor assembly, and the driven rotor assembly includes an energy storage rotor and a load rotor. The load rotor is connected to the output shaft and outputs torque. A sliding protrusion is radially protruding outward on the outer wall of the energy storage rotor, and a sliding groove matching the sliding protrusion is circumferentially arranged on the inner wall of the load rotor. The energy storage rotor is suitable for being rotatably connected to the load rotor through the sliding protrusion and the sliding groove. A first soft magnet and a second soft magnet corresponding to the first permanent magnet are respectively arranged axially on the outer walls of the energy storage rotor and the load rotor. The first soft magnet is arranged on the energy storage rotor, and the second soft magnet is arranged on the load rotor. The active rotor assembly is suitable for driving the energy storage rotor to rotate through the coupling action of the first permanent magnet and the first soft magnet, and the sliding protrusion is suitable for generating a force in the circumferential direction and driving the load rotor to start, thereby realizing the coupling of the first permanent magnet and the second soft magnet.

2. A high-temperature sealed magnetic transmission device according to claim 1, characterized in that: The chute includes at least two acceleration sections and a corresponding number of release sections. The acceleration sections are arranged along the circumference of the load rotor, and the release sections are arranged along the axial direction of the load rotor. The acceleration sections and the release sections are spaced apart and connected end to end to form a closed ring. The active rotor assembly is suitable for driving the energy storage rotor to rotate circumferentially through the coupling action of the first permanent magnet and the first soft magnet, thereby driving the sliding protrusion to rotate circumferentially along the acceleration section until it enters the release section. The sliding protrusion is suitable for contacting the inner wall of the release section and releasing kinetic energy to drive the load rotor to accelerate.

3. A high-temperature sealed magnetic transmission device according to claim 2, characterized in that: The acceleration section includes a first acceleration section and a second acceleration section, the first acceleration section and the second acceleration section are both parallel to the horizontal plane and are staggered on the horizontal plane, and the second acceleration section is arranged above the first acceleration section; the release section includes a first release section and a second release section, the first release section extends along the axial and circumferential directions at the same time and connects the tail of the first acceleration section and the head of the second acceleration section, and the second release section also extends along the axial and circumferential directions at the same time and connects the tail of the second acceleration section and the head of the first acceleration section.

4. A high-temperature sealed magnetic transmission device according to claim 2, characterized in that: The acceleration section includes a first acceleration section, a second acceleration section, a third acceleration section and a fourth acceleration section, and the release section includes a first release section, a second release section, a third release section and a fourth release section. The acceleration sections and the release sections are arranged at intervals and connected end to end to form a closed ring, wherein the first acceleration section and the third acceleration section are arranged on the left and right sides of the load rotor in a centrally symmetrical manner on a horizontal plane, and the second acceleration section and the fourth acceleration section are arranged on the left and right sides of the load rotor in a centrally symmetrical manner on the horizontal plane, and the second acceleration section is arranged above the first acceleration section. The first release section, the second release section, the third release section and the fourth release section extend simultaneously in the axial direction and the circumferential direction and are sequentially connected to the first acceleration section, the second acceleration section, the third acceleration section and the fourth acceleration section.

5. A high-temperature sealed magnetic transmission device according to claim 2, characterized in that: The acceleration section includes a first acceleration section and a second acceleration section, which are centrally symmetrically arranged on the left and right sides of the load rotor in a horizontal plane, and the first acceleration section and the second acceleration section are arranged axially and spirally upward, with the number of spiral turns equal to 0.5 turns. The tail of the first acceleration section is higher than the head of the first acceleration section. The release section includes a first release section and a second release section, the first release section extends axially and connects the tail of the first acceleration section and the head of the second acceleration section, and the second release section extends axially and connects the tail of the second acceleration section and the head of the first acceleration section.

6. A high-temperature sealed magnetic transmission device according to any one of claims 4 or 5, characterized in that: Two sliding protrusions are provided on the outer wall of the energy storage rotor and protrude radially outward. The sliding protrusions are symmetrically arranged on the left and right sides of the energy storage rotor and slide along the sliding groove.

7. A high-temperature sealed magnetic transmission device according to claim 5, characterized in that: The top of the energy storage rotor is provided with a mounting portion protruding radially outward, the outer wall of the mounting portion is axially provided with the first soft magnet, the lower portion of the mounting portion is axially provided with a second permanent magnet, and the second permanent magnet is provided on the upper portion of the sliding protrusion; the inner wall of the load rotor defines a first sealed cavity, the inner wall of the first sealed cavity is provided with the sliding groove, the sliding protrusion is suitable for moving along the sliding groove and changing the height of the energy storage rotor so that the second permanent magnet invades or detaches from the first sealed cavity.

8. A high-temperature sealed magnetic transmission device according to claim 7, characterized in that: A second sealed cavity is axially provided on the load rotor. The second sealed cavity is circumferentially arranged outside the first sealed cavity. A thermal insulation sleeve is installed in the second sealed cavity. The thermal insulation sleeve is suitable for limiting the influence of high temperature on the second permanent magnet. A buffer portion is provided on the top of the thermal insulation sleeve protruding radially outward. The buffer portion is suitable for limiting the axial impact on the load rotor generated by the energy storage rotor when it descends.

9. A high-temperature sealed magnetic transmission device according to claim 7, characterized in that: An oil storage tank is circumferentially provided at the top of the inner wall of the first sealed cavity, and lubricating oil is provided in the oil storage tank. The lubricating oil is suitable for controlling the friction between the energy storage rotor and the load rotor; an oil scraping portion is provided at the top of the inner wall of the first sealed cavity protruding radially inward. The oil scraping portion is provided above the oil storage tank and abuts against the outer wall of the energy storage rotor. The oil scraping portion is suitable for scraping off the lubricating oil adhering to the surface of the second permanent magnet.

10. A high-temperature sealed magnetic transmission device according to claim 9, characterized in that: A third soft magnet is circumferentially arranged on the top of the energy storage rotor, and a third permanent magnet is correspondingly arranged on the active rotor assembly. The third permanent magnet is suitable for coupling with the third soft magnet and driving the energy storage rotor to rotate circumferentially.

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