CN115045924A

CN115045924A - Electromagnetic clutch and nuclear reactor

Info

Publication number: CN115045924A
Application number: CN202210676504.XA
Authority: CN
Inventors: 刘磊; 张金山; 孙征; 刘天才; 衣大勇; 赵守智
Original assignee: China Institute of Atomic of Energy
Current assignee: China Institute of Atomic of Energy
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-09-13
Anticipated expiration: 2042-06-15
Also published as: CN115045924B

Abstract

The embodiment of the application discloses an electromagnetic clutch and a nuclear reactor, relates to the technical field of nuclear reactor engineering, and solves the problem that the electromagnetic clutch works for a long time and generates a large amount of heat in the related technology. The electromagnetic clutch comprises a shell, a first magnetic part and a locking mechanism, wherein the shell comprises an upper shell and a lower shell; the first magnetic attraction piece attracts the upper shell and the lower shell when being electrified; locking mechanism sets up on the casing, and when last casing and lower casing were inhaled, locking mechanism and casing relative position can change to make the locking or the unblock of last casing and lower casing, locking mechanism will go up casing and lower casing locking, in order to realize first magnetism and inhale the outage. The electromagnetic clutch is used for transmitting power to the nuclear reactor.

Description

Electromagnetic clutch and nuclear reactor

Technical Field

The application relates to but not limited to the technical field of nuclear reactor engineering, in particular to an electromagnetic clutch and a nuclear reactor.

Background

At present, various electromagnetic clutches, such as a tooth type, a double winding type, a waterproof type, a recovery type, a one-way type and the like, are available at home and abroad, and are widely applied to engineering and life. With the development of small special nuclear reactors, particularly, the miniaturization of the reactor driving mechanism and the transmission mechanism is achieved.

The electromagnetic clutch in the related art works by applying an electromagnetic induction principle and friction force between an inner friction plate and an outer friction plate, when the electromagnetic clutch is in a working state, an electromagnetic coil needs to be continuously electrified, and the coil of the electromagnetic clutch can be heated abnormally after a long time, so that the working life of the electromagnetic clutch is influenced.

Disclosure of Invention

The embodiment of the application provides an electromagnetic clutch and a nuclear reactor, and solves the problem that the electromagnetic clutch generates a large amount of heat when working for a long time in the related technology.

In a first aspect, an embodiment of the present application discloses an electromagnetic clutch, which includes a housing, a first magnetic attraction member, and a locking mechanism, wherein the housing includes an upper housing and a lower housing; when the first magnetic attraction piece is electrified, the upper shell and the lower shell are attracted; locking mechanism sets up on the casing, and when last casing and lower casing were inhaled, locking mechanism and casing relative position can change to make the locking or the unblock of last casing and lower casing, locking mechanism will go up casing and lower casing locking, in order to realize first magnetism and inhale the outage.

The electromagnetic clutch that this application embodiment provided through set up locking mechanism on the casing, when first magnetism piece circular telegram of inhaling, goes up casing and casing actuation down, and at this moment, locking mechanism can change with the relative position of casing to make casing and casing locking or unblock down. When locking mechanism will go up casing and lower casing locking, at this moment, first magnetism is inhaled the piece outage, electromagnetic clutch is still in operating condition, compare in the correlation technique in the solenoid need last the circular telegram, lead to the condition of unusual generating heat, the electromagnetic clutch that this application embodiment provided, locking mechanism replaces first magnetism to inhale the piece in order to go up casing and casing locking down, guarantee to go up casing and casing down and still be in the actuation state, so that electromagnetic clutch normally works, first magnetism is inhaled the piece and need not last the circular telegram, the problem that the electromagnetic clutch lasts the work calorific capacity big has been solved, electromagnetic clutch's working life has been prolonged. And when locking mechanism became invalid or broke down, first magnetism was inhaled the piece and is switched on again, ensured that electromagnetic clutch is still in operating condition for locking mechanism and first magnetism inhale the piece and each other redundantly, improved electromagnetic clutch's operational reliability. That is, the electromagnetic clutch provided by the embodiment of the application solves the problem that the electromagnetic clutch generates a large amount of heat when working for a long time in the related art.

In the realizable mode that this application provided, locking mechanism includes that locking Assembly and second magnetism inhale the piece, and when the second magnetism inhaled the piece and switched on, the second magnetism inhaled the piece and provides magnetic attraction to locking Assembly, and locking Assembly can produce the displacement for the casing to make casing and casing locking down.

The electromagnetic clutch that this application embodiment provided can produce the displacement for the casing through the mode control locking Assembly that attracts the piece circular telegram or cut off the power supply to the second magnetism, and reaction time is short to make quick locking of casing and lower casing or unblock, save time.

In one implementation manner provided by the present application, the rated power of the second magnetic attraction piece is smaller than the rated power of the first magnetic attraction piece.

The electromagnetic clutch that this application embodiment provided, the rated power of piece is inhaled to the second magnetism is less than the rated power of first magnetism and inhales the piece, and when first magnetism was inhaled the outage, the piece circular telegram is inhaled to the second magnetism to make locking Assembly with last casing and the quick locking of casing down, reduce the calorific capacity when electromagnetic clutch moved for a long time, provide electromagnetic clutch's life.

In the realizable mode that this application provided, locking Assembly includes buckling piece, locking piece and spout, and the buckling piece sets up on last casing, and the spout setting is on casing down, and buckling piece protractile spout, locking piece setting are on casing down, and when the second magnetism was inhaled the piece and is switched on, the second magnetism was inhaled the piece and is provided magnetic attraction to the locking piece, and the locking piece produces the displacement for casing down to make the locking piece joint on the buckling piece.

The embodiment of the application provides an electromagnetic clutch, through set up the buckling piece on last casing, set up the lock piece on the casing down, when last casing and casing down inhale, the buckling piece stretches into down in the spout that the casing set up, when the second magnetism is inhaled the piece circular telegram, the second magnetism is inhaled the piece and is provided magnetic attraction to the lock piece, at this moment, the lock piece produces the displacement for the casing down, so, guarantee that the lock piece just joint is on the buckling piece, guarantee the reliability of casing and casing down on the locking subassembly closure, it is not firm to avoid appearing the locking subassembly locking, the condition that electromagnetic clutch can not normally work appears.

In the utility model provides an among the realizable mode that this application provided, the locking piece includes magnetism portion of inhaling and joint portion, and magnetism portion of inhaling is the permanent magnet, and when the second magnetism was inhaled the piece and is switched on, the second magnetism was inhaled the piece and is adsorbed magnetism portion of inhaling, and joint portion produces the displacement for the casing down to make joint portion joint on the buckling piece.

According to the electromagnetic clutch provided by the embodiment of the application, the permanent magnet is an object capable of permanently keeping the magnetism in the magnetite, and under the condition of normal use, the magnetism of the permanent magnet is not easy to lose, and is not easy to be magnetized. The magnetic part is selected as the permanent magnet, so that the phenomenon that the second magnetic part cannot be adsorbed when adsorbing the magnetic part is avoided, the maintenance cost of the locking part is reduced, and the clamping part can be smoothly clamped on the buckling part.

In the utility model provides a can realize mode, lock piece and lower casing rotatable coupling, the first end of lock piece is magnetism portion of inhaling, and the second end of lock piece is joint portion, is provided with spherical arch in the joint portion, is provided with the arc concave part on the buckling piece, and spherical arch and arc concave part adaptation are inhaled when the second magnetism is inhaled the piece and is switched on, and the second magnetism is inhaled the piece and is adsorbed magnetism portion, and joint portion is close to the buckling piece to make the protruding joint of spherical on the buckling piece.

The electromagnetic clutch that this application embodiment provided, lock piece and lower casing rotatable coupling have reduced electromagnetic clutch's volume. Because lock piece and lower casing rotatable coupling, consequently, be provided with spherical protruding in joint portion, be provided with the arc concave part on the buckling piece, spherical protruding and arc concave part adaptation when spherical protruding joint is on the buckling piece, spherical protruding and arc concave part are the face contact all the time, have ensured the reliability of lock piece and buckling piece joint.

In the realizable mode that this application provided, the piece is inhaled to lock piece and second magnetism is a plurality of, and a plurality of lock pieces and a plurality of second magnetism inhale the piece along the circumference direction evenly distributed of casing down, and the position one-to-one of piece is inhaled to lock piece and second magnetism.

The embodiment of the application provides an electromagnetic clutch, when last casing and lower casing actuation, the second magnetism is inhaled the piece and is adsorbed the locking piece in order to inhale the locking piece joint on the buckling piece, if only set up a locking piece and a second magnetism and inhale the piece, then the complete actuation of casing and lower casing can be ensured to the effort of locking piece joint on the buckling piece, consequently, set up a plurality of locking pieces and second magnetism and inhale the piece, a plurality of locking pieces and a plurality of magnetism inhale the circumferential direction evenly distributed of piece edge casing down, and the position one-to-one of locking piece and second magnetism.

In an implementation manner provided by the present application, the locking assembly includes a first elastic member, a first end of the first elastic member is fixed to the bottom of the sliding groove, and a second end of the first elastic member abuts against an end of the fastening member, so as to provide the fastening member with an elastic force in a direction away from the first elastic member.

The electromagnetic clutch that this application embodiment provided sets up first elastic component in the spout, the first end of first elastic component is fixed in the bottom of spout, the second end of second elastic component supports with the tip of buckling piece and leans on for the buckling piece provides the elastic force of keeping away from first elastic component direction, when electromagnetic clutch stop work, go up casing and lower casing separation this moment, the gravity of buckling piece and last casing is overcome to the elastic component that first elastic component provided, so that the lower casing separation of last casing.

In an implementation manner provided by the present application, the number of the locking mechanisms is multiple, and the multiple locking mechanisms are uniformly distributed along the circumferential direction of the housing.

The electromagnetic clutch that this application embodiment provided, the relative position of locking mechanism and casing can change, and locking mechanism is in order to go up casing and casing locking or unblock down, for guaranteeing locking mechanism's locking reliability, sets up a plurality of locking mechanism on electromagnetic clutch, and a plurality of locking mechanism are along the circumference evenly distributed of casing.

In the achievable mode that this application provided, electromagnetic clutch still includes the guide assembly, and the guide assembly includes guide bar and guide way, and the guide bar sets up on last casing, and the guide way setting is on casing down, the interior profile of guide way and the profile adaptation of guide bar to make the guide bar stretch into in the guide way.

The electromagnetic clutch that this application embodiment provided, the in-process of electromagnetic separator at work, go up casing and lower casing actuation, but the gliding phenomenon of casing and lower casing also probably appears, perhaps go up the phenomenon of casing and the actuation position deviation of casing down, for this reason, electromagnetic clutch is still including the direction subassembly, the direction subassembly includes guide bar and guide way, the guide bar sets up on last casing, the guide way sets up under on the casing, the interior profile of guide way and the profile adaptation of guide bar, so that the guide bar stretches into in the guide way.

In an implementation manner provided by the present application, the number of the guide assemblies is multiple, and the plurality of guide assemblies are uniformly distributed along the circumferential direction of the housing.

In one implementation provided herein, the guide assembly and the locking mechanism are spaced apart along a circumferential direction of the housing.

In one implementation manner provided by the present application, the electromagnetic clutch includes a second elastic member, a first end of the second elastic member is fixed to the upper housing, a second end of the second elastic member is fixed to the lower housing, and an elastic force of the second elastic member relatively keeps the upper housing and the lower housing away from each other.

The electromagnetic clutch that this application embodiment provided, in order to avoid appearing the elastic force of first elastic component and be not enough to overcome the gravity of last casing and buckling piece, the phenomenon that can't be smoothly with last casing and lower casing separation, the last second elastic component that has still set up of electromagnetic clutch, the first end of second elastic component is fixed on last casing, the second end of second elastic component is fixed under on the casing, the elastic force of second elastic component so that last casing and lower casing are kept away from relatively.

In a second aspect, an embodiment of the present application provides a nuclear reactor, including a transmission mechanism and the electromagnetic clutch provided in any of the embodiments of the first aspect, where the electromagnetic clutch is connected to the transmission mechanism to transmit power of the electromagnetic clutch to the transmission mechanism.

The nuclear reactor provided by the embodiment of the present application includes the electromagnetic clutch provided in any one of the first aspect, and therefore has the same technical effect, that is, the nuclear reactor provided by the embodiment of the present application solves the problem in the related art that the electromagnetic clutch generates a large amount of heat when operating for a long time.

Drawings

Fig. 1 is a schematic structural view of an electromagnetic clutch provided in an embodiment of the present application, in which a locking mechanism unlocks an upper case and a lower case when the upper case and the lower case are engaged;

fig. 2 is a schematic structural diagram of a locking mechanism locking an upper housing and a lower housing when the upper housing and the lower housing are engaged in an electromagnetic clutch according to an embodiment of the present application;

FIG. 3 is a schematic structural view of an electromagnetic clutch provided in an embodiment of the present application with an upper housing and a lower housing separated from each other;

fig. 4 is a schematic structural diagram of a locking mechanism and a guide assembly of an electromagnetic clutch provided in an embodiment of the present application, which are distributed along a circumferential direction of a housing.

Reference numerals

1-a shell; 11-an upper shell; 12-a lower housing; 2-a first magnetic attraction; 3-a locking mechanism; 31-a second magnetically attractive element; 32-a locking assembly; 321-a fastener; 3211-an arcuate recess; 322-a chute; 323-a lock; 3231-magnetic attracting part; 3232-a snap-fit portion; 32321-spherical bulge; 324-a first resilient member; 4-a guide assembly; 41-a guide bar; 42-a guide groove; 5-a second elastic member; 6-friction pair.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, specific technical solutions of the present application will be described in further detail below with reference to the accompanying drawings in the embodiments of the present application. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.

In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present application, "a plurality" means two or more unless otherwise specified.

In addition, in the embodiments of the present application, directional terms such as "upper", "lower", "left", and "right" are defined with respect to the schematically-placed orientation of components in the drawings, and it is to be understood that these directional terms are relative concepts, which are used for descriptive and clarifying purposes, and may be changed accordingly according to changes in the orientation in which the components are placed in the drawings.

In the embodiments of the present application, unless otherwise explicitly stated or limited, the term "connected" is to be understood broadly, for example, "connected" may be a fixed connection, a detachable connection, or an integral body; may be directly connected or indirectly connected through an intermediate.

In the embodiments of the present application, the terms "include", "include" or any other variations are intended to cover non-exclusive inclusions, so that a process, a method, an article, or an apparatus including a series of elements includes not only those elements but also other elements not explicitly listed, or further includes elements inherent to such a process, a method, an article, or an apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

The clutch is a device similar to a switch, a combination or a disconnection power transmission function, a driving part and a driven part of the clutch mechanism can be temporarily separated and gradually jointed, and can also relatively rotate in the transmission process, and the clutch is divided into four types, namely an electromagnetic clutch, a magnetic powder clutch, a friction type clutch and a hydraulic clutch.

The electromagnetic clutch is a component which uses the electromagnetic induction principle and the friction force between an inner friction plate and an outer friction plate to enable two rotating motion in a mechanical transmission system, under the condition that a driving component does not stop rotating, a driven component can be connected with the electromagnetic clutch which is combined with or separated from the driving component, the electromagnetic clutch is an automatic execution electric appliance, and the electromagnetic clutch can control the starting, reversing, speed regulation, braking and the like of the mechanical transmission system. The electromagnetic clutch has the advantages of simple structure, quick action, small control energy, quick and stable braking, small volume and capability of transmitting larger torque, so the electromagnetic clutch is widely applied to various processing machines and mechanical transmission systems.

The present invention provides a nuclear reactor, which is also called a nuclear reactor or a nuclear reactor, and is a device for maintaining a controllable and self-sustaining chain type nuclear fission reaction to realize nuclear energy utilization. A driving mechanism or a transmission mechanism is arranged in the nuclear reactor. Taking a transmission mechanism as an example, the nuclear reactor provided by the embodiment of the application comprises the transmission mechanism and an electromagnetic clutch, wherein the electromagnetic clutch is connected with a driving part and a driven part of the transmission mechanism so as to transmit the power of the driving part of the transmission mechanism to the driven part through the electromagnetic clutch.

The embodiment of the present application further provides an electromagnetic clutch, as shown in fig. 1 and fig. 2, including a housing 1, a first magnetic attraction member 2, and a locking mechanism 3, where the housing 1 includes an upper housing 11 and a lower housing 12; when the first magnetic attraction piece 2 is electrified, the upper shell 11 and the lower shell 12 are attracted; locking mechanism 3 sets up on casing 1, and when last casing 11 and lower casing 12 were inhaled, locking mechanism 3 and casing 1's relative position can change to make the locking or the unblock of last casing 11 and lower casing 12, locking mechanism 3 will go up casing 11 and lower casing 12 locking, in order to realize first magnetism and inhale 2 outage.

It should be added that, the electromagnetic clutch provided by the present application is not limited to be applied in a nuclear reactor, and may also be applied in a mechanical transmission system.

Referring to fig. 3, it can be seen from the above description that when the electromagnetic clutch is applied to a nuclear reactor, the electromagnetic clutch should have the characteristics of high temperature resistance, radiation resistance, small volume, small heat generation, and the like. For this purpose, the casing 1 should be made of a high temperature resistant and radiation resistant material, such as 316 stainless steel, which is a short term for stainless acid resistant steel, and 316 stainless steel has molybdenum element, has properties of atmospheric corrosion resistance and high temperature resistance, and is suitable for use in a nuclear reactor. In order to prevent the relative sliding between the upper casing 11 and the lower casing 12 during the closing, a friction pair 6 is further disposed on the lower casing 12, and the friction pair 6 should also be made of a high-temperature friction material. The first magnetic part 2 can also adopt a 300-grade electromagnetic wire with high temperature resistance and radiation resistance and corresponding insulating paint. The locking mechanism 3 should also be made of a high temperature resistant metal material.

Referring to fig. 2 and 4, on the basis of which the relative position of the locking mechanism 3 and the housing 1 can be changed, the locking mechanism 3 locks or unlocks the upper housing 11 and the lower housing 12, and in order to ensure the locking reliability of the locking mechanism 3, a plurality of locking mechanisms 3 are provided on the electromagnetic clutch, and the plurality of locking mechanisms 3 are uniformly distributed along the circumferential direction of the housing.

Referring to fig. 2, it should be specifically noted that the locking mechanism includes a locking assembly 32 and a power member, the power member may be any component providing power, such as a gear transmission, a belt transmission, etc., and the electromagnetic clutch should also have a miniaturization characteristic due to the gradual miniaturization of the special nuclear reactor, especially the miniaturization of the driving mechanism or the transmission mechanism in the reactor, and the gear transmission requires a driving gear and a driven gear on the casing; the belt transmission needs to arrange components such as a driving wheel, a driven wheel and a synchronous belt on the shell, so that the locking mechanism 3 is overlarge in size, and the weight of the electromagnetic clutch is increased. In order to meet the requirement of miniaturization of the electromagnetic clutch, and keep the same with the first magnetic part 2 at the same time, the power part is selected as the second magnetic part 31, therefore, the locking mechanism 3 comprises a locking component 32 and the second magnetic part 31, when the second magnetic part 31 is electrified, the second magnetic part 31 provides magnetic attraction force for the locking component 32, and the locking component 32 can generate displacement relative to the housing 1, so that the upper housing 11 and the lower housing 12 are locked. The locking assembly 32 can be controlled to move relative to the shell 1 in a power-on or power-off mode of the second magnetic attraction piece 31, the reaction time is short, so that the upper shell 11 and the lower shell 12 can be locked or unlocked quickly, and the time is saved.

As shown in fig. 2, further, the rated power of the second magnetic attraction member 31 is smaller than the rated power of the first magnetic attraction member 2, when the first magnetic attraction member 2 is powered off, the second magnetic attraction member 31 is powered on, so that the locking assembly 32 locks the upper casing 11 and the lower casing 12 quickly, the heat productivity of the electromagnetic clutch during long-time operation is reduced, the service life of the electromagnetic clutch is prolonged, certainly, the second magnetic attraction member 31 also needs to meet the characteristics of radiation resistance and high temperature resistance, the second magnetic attraction member 31 can be made of the same material as the first magnetic attraction member 2, if 300-level electromagnetic wires with high temperature resistance and radiation resistance and corresponding insulating paint are selected, the second magnetic attraction member 31 can also be made of different materials from the first magnetic attraction member 2, and therefore, the present application is not limited, as long as the second magnetic attraction member 31 has the performance of radiation resistance and high temperature resistance.

Referring to fig. 1, 2 and 3, further, when the power member is the second magnetic attraction member 31, when the electromagnetic clutch works, the first magnetic attraction member 2 is energized to attract the upper casing 11 and the lower casing 12, when the upper casing 11 and the lower casing 12 are attracted, the second magnetic attraction member 31 is energized, the locking assembly 32 is displaced relative to the casing 1 to lock the upper casing 11 and the lower casing 12, at this time, the first magnetic attraction member 2 is de-energized, during the working process of the electromagnetic clutch, only the second magnetic attraction member 31 is energized, and the rated power of the second magnetic attraction member 31 is smaller than the rated power of the first magnetic attraction member 2. At this moment, the power consumption is lower, and first magnetism is inhaled piece 2 and is had no power consumption, has reduced the calorific capacity of electromagnetic clutch long-time operation. When the locking component 32 fails, the first magnetic attraction piece 2 can be continuously powered on, the first magnetic attraction piece 2 and the second magnetic attraction piece 31-the locking component 32 are mutually redundant, and if one of the first magnetic attraction piece 2 and the second magnetic attraction piece is failed, the other magnetic attraction piece can ensure the normal operation of the clutch. When the electromagnetic clutch stops operating, the second magnetic attraction member 31 is de-energized to unlock the upper case 11 and the lower case 12.

In some embodiments provided in the present application, referring to fig. 1 and fig. 2, the locking component 32 may be designed as an integral body or as a separate body, when the locking component 32 is designed as an integral body, the locking component 32 may be a snap groove adapted to the outer contour of the housing 1, and when the second magnetic member is powered on, the locking component 32 is close to the housing 1, so that the snap groove is adapted to the outer contour of the housing 1, so as to lock the upper housing 11 and the lower housing 12. When the second magnetic attraction piece 31 is powered off, the locking assembly 32 is far away from the shell 1, and the clamping groove is separated from the outer contour of the shell 1, so that the upper shell 11 and the lower shell 12 are unlocked. Of course, when the locking assembly 32 is integrally formed, the locking assembly 32 may have other configurations. When locking Assembly 32 is for the components of a whole that can function independently design, in the realizable mode that this application provided, locking Assembly 32 includes buckle 321, locking piece 323 and spout 322, buckle 321 sets up on last casing 11, spout 322 sets up on casing 12 down, buckle 321 can stretch into spout 322, locking piece 323 sets up on casing 12 down, when second magnetism piece 31 circular telegram of inhaling, second magnetism piece 31 provides magnetic attraction to locking piece 323, locking piece 323 produces the displacement for casing 12 down, so that locking piece 323 joint is on locking piece 321. Therefore, the locking member 323 is just clamped on the fastening member 321, reliability of locking the locking assembly 32 to the upper housing 11 and the lower housing 12 is ensured, unstable locking of the locking assembly 32 is avoided, and the situation that the electromagnetic clutch cannot work normally occurs.

As shown in fig. 1 and fig. 2, when the second magnetic element 31 is powered on, the second magnetic element 31 provides a magnetic attraction force to the locking member 323, the locking member 323 moves relative to the lower housing 12, so that the locking member 323 is clamped to the fastening member 321, and therefore, the locking member 323 should be divided into a magnetic portion 3231 and a clamping portion 3232, the second magnetic element 31 should directly adsorb the magnetic portion 3231, and the clamping portion 3232 moves relative to the lower housing 12, so that the clamping portion 3232 is clamped to the fastening member 321. It should be noted that, when the second magnetic member 31 is powered on, the second magnetic member 31 generates an electromagnetic field, and the electromagnetic field generates an electromagnetic force to directly attract the magnetic portion 3231, so that the attracting portion should be a substance with a magnetic material. Such as a magnet, a magnetic conductive member, etc., wherein the magnet is composed of elements such as iron, cobalt, nickel, etc., and the internal structure of the atom is special, and the magnet itself has a magnetic moment, and the magnet can generate a magnetic field and has the characteristic of attracting ferromagnetic substances such as metals such as iron, cobalt, nickel, etc. Therefore, the magnetic conductive member may be a metal having elements of iron, cobalt, nickel, and the like.

Referring to fig. 1 and 2, the magnets are further divided into permanent magnets and non-permanent magnets, natural products of permanent magnet stones, also called natural magnets, can also be manufactured by manpower, and the non-permanent magnets, such as the first magnetic attraction member 2, the second magnetic attraction member 31, the electromagnet, etc., can only exhibit magnetism under certain conditions. Since the permanent magnet is an object capable of permanently maintaining the magnetism inside the magnetite, the magnetism of the permanent magnet is not easily lost and is not easily magnetized in normal use. Magnetic part 3231 is selected as a permanent magnet, so that the phenomenon that the magnetism of the adsorption part disappears and the adsorption cannot be performed when second magnetic part 31 adsorbs magnetic part 3231 is avoided, the maintenance cost of locking part 323 is reduced, and clamping part 3232 can be smoothly clamped on fastening part 321.

As shown in fig. 1 and 2, it should be added that the locking member 323 is displaced relative to the lower housing 12 to lock or unlock the upper housing 11 and the lower housing 12. At this time, the lock member 323 can be linearly displaced with respect to the lower case 12, and the lock member 323 can be curved with respect to the lower case 12. When the lock member 323 is displaced in a curved manner relative to the lower case 12, the lock member 323 is rotatably coupled to the lower case 12, which reduces the size of the electromagnetic clutch. The first end of locking piece 323 is magnetism portion 3231 of inhaling, and the second end of locking piece 323 is joint portion 3232, and lower casing 12 can be connected with joint portion 3232 and magnetism portion 3231's middle changeover portion, also can be connected with joint portion 3232, can also be connected with magnetism portion 3231.

Referring to fig. 1 and 2, the clamping portion 3232 is clamped to the fastening member 321 to lock the upper housing 11 and the lower housing 12, in order to increase a contact area between the clamping portion 3232 and the fastening member 321, a protrusion is disposed on the clamping portion 3232, and a recess is disposed on the fastening member 321, and the protrusion is adapted to the recess to clamp the protrusion in the recess. The projections can be in regular shapes such as rectangular solids, cubes or spheres, and can also be in irregular shapes. For convenience of processing and manufacturing, the shape of the bulge can be a regular shape such as a cuboid, a cube or a sphere. When the protrusion is a cuboid, the corresponding concave portion should also be set to be a cuboid, and due to the fact that the six surfaces of the cuboid are different in size and edges and corners are arranged between the six surfaces, at the moment, the protrusion should be completely matched with the concave portion, the rotation angle of the locking piece 323 relative to the lower shell 12 needs to be accurately controlled, when the working time of the electromagnetic clutch is too long, the precision is reduced, at the moment, the protrusion and the concave portion are likely to be in point contact or line contact, and the reliability of locking of the locking piece 323 and the buckling piece 321 is difficult to guarantee. Therefore, the shape of the protrusion is spherical, and correspondingly, the recess is also arc-shaped, so that when the spherical protrusion 32321 is clamped on the fastener 321, the spherical protrusion 32321 and the arc-shaped recess 3211 are always in surface contact, thereby ensuring the reliability of locking the locking member 323 and the fastener 321.

As shown in fig. 2, on this basis, when the upper housing 11 and the lower housing 12 are attracted, the second magnetic attraction piece 31 attracts the locking piece 323 to lock the locking piece 323 in the fastening piece 321, and if only one locking piece 323 and one second magnetic attraction piece 31 are provided, whether the acting force of the locking piece 323 fastened to the fastening piece 321 can ensure the complete attraction of the upper housing 11 and the lower housing 12, therefore, a plurality of locking pieces 323 and the second magnetic attraction pieces 31 are provided, the plurality of locking pieces 323 and the plurality of magnetic attraction pieces are uniformly distributed along the circumferential direction of the lower housing 12, and the positions of the locking pieces 323 and the second magnetic attraction pieces 31 are in one-to-one correspondence.

Referring to fig. 1 and 2, in other embodiments provided herein, the locking assembly 32 includes a first elastic member 324, the first elastic member 324 is disposed in the sliding slot 322, a first end of the first elastic member 324 is fixed at the bottom of the sliding slot 322, a second end of the second elastic member 5 abuts against an end of the fastening member 321, and is configured to provide an elastic force to the fastening member 321 in a direction away from the first elastic member 324, when the electromagnetic clutch stops working, the upper casing 11 and the lower casing 12 are separated at this time, and the elastic member provided by the first elastic member 324 overcomes the gravity of the fastening member 321 and the upper casing 11, so as to separate the lower casing 12 of the upper casing 11.

Referring to fig. 3, on the basis, in order to avoid the phenomenon that the elastic force of the first elastic member 324 is not enough to overcome the gravity of the upper housing 11 and the fastening member 321, and the upper housing 11 cannot be smoothly separated from the lower housing 12, the electromagnetic clutch is further provided with a second elastic member 5, a first end of the second elastic member 5 is fixed on the upper housing 11, a second end of the second elastic member 5 is fixed on the lower housing 12, and the elastic force of the second elastic member 5 makes the upper housing 11 and the lower housing 12 relatively far away. It should be added that the first elastic member 324 and the second elastic member 5 are elastic elements providing elastic force, the first elastic member 324 and the second elastic member 5 may be springs, wave springs, etc., and the types of the first elastic member 324 and the second elastic member 5 may be the same or different. For example, the first elastic member 324 and the second elastic member 5 are both selected as springs.

In other embodiments provided herein, referring to fig. 2 and 3, during the operation of the electromagnetic separator, the upper housing 11 and the lower housing 12 are engaged, but there may be a relative sliding phenomenon between the upper housing 11 and the lower housing 12, or a deviation phenomenon between the positions of the upper housing 11 and the lower housing 12, although the friction pair 6 is disposed between the upper housing 11 and the lower housing 12, the friction pair 6 is made of a high temperature friction material, and overcomes the relative sliding force between the upper housing 11 and the lower housing 12 by friction force, but in order to further promote the complete engagement between the upper housing 11 and the lower housing 12, the relative sliding phenomenon between the upper housing 11 and the lower housing 12 is completely avoided. To this end, the electromagnetic clutch further includes a guide assembly 4, the guide assembly 4 including a guide rod 41 and a guide groove 42, the guide rod 41 being disposed on the upper housing 11, the guide groove 42 being disposed on the lower housing 12, an inner contour of the guide groove 42 being adapted to an outer contour of the guide rod 41 such that the guide rod 41 is inserted into the guide groove 42. It should be noted that the guide rod 41 and the guide groove 42 may have any shape, and may have a regular shape such as a rectangular parallelepiped, a cube, a cylinder, or an irregular shape. For ease of manufacturing and cost savings, the guide rod 41 and the guide slot 42 are generally selected to be regular in shape, and in some embodiments, the guide rod 41 and the guide slot 42 are cylindrical. Of course, the number of the guide assemblies 4 is plural, and the plural guide assemblies 4 are uniformly distributed along the circumferential direction of the housing 1. The complete attraction of the upper shell 11 and the lower shell 12 can be further promoted, the balance of the force can be kept, and the relative sliding phenomenon between the upper shell 11 and the lower shell 12 can be completely avoided.

As shown in fig. 3 and 4, it should be added that the plurality of guide assemblies 4 are uniformly distributed along the circumferential direction of the casing, and the plurality of guide assemblies 4 may be arranged in a single row in the circumferential direction of the casing 1 or in a plurality of rows in the circumferential direction of the casing 1. And guide assembly 4 and locking mechanism 3 all set up the circumferential direction at casing 1, and guide assembly 4 both can distribute with locking mechanism 3 interval, and guide assembly 4 also can distribute with locking mechanism 3 symmetry, and in some embodiments of this application, guide assembly 4 and locking mechanism 3 distribute along the circumferential direction interval of casing 1, to this, this application does not put a limit on.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.

Claims

1. An electromagnetic clutch, comprising:

a housing comprising an upper housing and a lower housing;

the first magnetic attraction piece attracts the upper shell and the lower shell when being electrified;

locking mechanism, locking mechanism sets up on the casing, work as go up the casing with when the casing is inhaled down, locking mechanism with the relative position of casing can change, so that go up the casing with the locking or the unblock of casing down, locking mechanism will go up the casing with the casing locking down, in order to realize first magnetism is inhaled a outage.

2. The electromagnetic clutch of claim 1 wherein the locking mechanism includes a locking assembly and a second magnetically attractive element, the second magnetically attractive element providing a magnetic attraction force to the locking assembly when the second magnetically attractive element is energized, the locking assembly being displaceable relative to the housing to lock the upper housing and the lower housing.

3. The electromagnetic clutch of claim 2 wherein the second magnetically attractive element has a power rating less than the power rating of the first magnetically attractive element.

4. The electromagnetic clutch according to claim 2, wherein the locking assembly includes a fastening member, a locking member, and a sliding groove, the fastening member is disposed on the upper housing, the sliding groove is disposed on the lower housing, the fastening member is extendable into the sliding groove, the locking member is disposed on the lower housing, when the second magnetic attraction member is energized, the second magnetic attraction member provides magnetic attraction force to the locking member, and the locking member is displaced relative to the lower housing, so that the locking member is fastened to the fastening member.

5. The electromagnetic clutch according to claim 4, wherein the locking member includes a magnetic attracting portion and a clamping portion, the magnetic attracting portion is a permanent magnet, when the second magnetic attracting portion is powered on, the second magnetic attracting portion attracts the magnetic attracting portion, and the clamping portion is displaced relative to the lower housing so that the clamping portion is clamped to the clamping member.

6. The electromagnetic clutch according to claim 5, wherein the locking member is rotatably connected to the lower housing, the first end of the locking member is the magnetic attraction portion, the second end of the locking member is the clamping portion, a spherical protrusion is disposed on the clamping portion, an arc-shaped recess is disposed on the fastening member, the spherical protrusion is adapted to the arc-shaped recess, when the second magnetic attraction member is energized, the second magnetic attraction member attracts the magnetic attraction portion, and the clamping portion is close to the fastening member, so that the spherical protrusion is clamped to the fastening member.

7. The electromagnetic clutch according to claim 2, wherein the number of the first magnetic attracting members and the number of the second magnetic attracting members are plural, the plural first magnetic attracting members and the plural second magnetic attracting members are evenly distributed along the circumferential direction of the lower housing, and the positions of the first magnetic attracting members and the positions of the second magnetic attracting members are in one-to-one correspondence.

8. The electromagnetic clutch of claim 4 wherein the locking assembly includes a first resilient member, a first end of the first resilient member is secured to the bottom of the chute, and a second end of the first resilient member abuts an end of the fastener for providing the fastener with a resilient force in a direction away from the first resilient member.

9. The electromagnetic clutch according to claim 2, wherein the locking mechanism is plural, and the plural locking mechanisms are evenly distributed along a circumferential direction of the housing.

10. The electromagnetic clutch of claim 3 further including a guide assembly including a guide rod disposed on the upper housing and a guide slot disposed on the lower housing, an inner profile of the guide slot matching an outer profile of the guide rod such that the guide rod extends into the guide slot.

11. The electromagnetic clutch of claim 10 wherein the pilot assembly is plural and the plural pilot assemblies are evenly distributed along a circumference of the housing.

12. The electromagnetic clutch of claim 11 wherein the pilot assembly is spaced from the locking mechanism in a circumferential direction of the housing.

13. The electromagnetic clutch according to any one of claims 1 to 12, characterized in that the electromagnetic clutch includes a second elastic member, a first end of which is fixed to the upper case and a second end of which is fixed to the lower case, and an elastic force of which is such that the upper case and the lower case are relatively separated.

14. A nuclear reactor, comprising:

a transmission mechanism;

the electromagnetic clutch according to any one of claims 1 to 13, which is connected to the transmission mechanism to transmit power of the electromagnetic clutch to the transmission mechanism.