CN113628768A - Electromagnetic locking mechanism and reactor movement equipment - Google Patents
Electromagnetic locking mechanism and reactor movement equipment Download PDFInfo
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- CN113628768A CN113628768A CN202110829085.4A CN202110829085A CN113628768A CN 113628768 A CN113628768 A CN 113628768A CN 202110829085 A CN202110829085 A CN 202110829085A CN 113628768 A CN113628768 A CN 113628768A
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- assembly
- locking mechanism
- electromagnet assembly
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C9/00—Emergency protection arrangements structurally associated with the reactor, e.g. safety valves provided with pressure equalisation devices
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C9/00—Emergency protection arrangements structurally associated with the reactor, e.g. safety valves provided with pressure equalisation devices
- G21C9/02—Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse; Control elements having arrangements activated in an emergency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The application relates to the technical field of nuclear reactor engineering, and provides an electromagnetic locking mechanism and moving equipment of a reactor. The housing is formed with an accommodation cavity and a clamping opening. The electromagnet assembly is fixedly connected to the shell. The centre gripping subassembly includes the retaining member, and the one end of centre gripping subassembly is fixed and is close to the open one end of centre gripping in the casing, and the motion piece is uncovered through the centre gripping and is worn to establish in the centre gripping subassembly. The actuation subassembly is formed with top pushing part and release portion, and the actuation subassembly is adsorbable closes in electromagnet assembly to make top pushing part butt retaining member, retaining member locking moving part. After the electromagnet assembly is powered off, the attraction assembly can move along the direction far away from the electromagnet assembly, so that the release part is aligned with the locking part, and the locking part loosens the moving part. Under the condition of accident or power failure, the electromagnetic locking mechanism can automatically disengage and release the moving part. The stroke of the loosening moving part is purely mechanical operation, and the working reliability is high.
Description
Technical Field
The application relates to the technical field of nuclear reactor engineering, in particular to an electromagnetic locking mechanism and a moving device of a reactor.
Background
In the technical field of nuclear reactor engineering, an electromagnetic locking mechanism which is small in size, reliable in work and simple and convenient to control needs to be arranged on a certain moving part, and the locking mechanism can bear large axial tension in a locking state. In case of accident or power failure, the electromagnetic locking mechanism can automatically disengage and release the locking end. The electromagnetic locking mechanism is not available on the existing nuclear reactor.
Disclosure of Invention
In view of the above, embodiments of the present application provide an electromagnetic locking mechanism with a compact and reliable structure to ensure safety of moving equipment of a nuclear reactor.
In order to achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:
an aspect of an embodiment of the present application provides an electromagnetic locking mechanism, including:
a moving member;
the shell is provided with an accommodating cavity and a clamping opening, and the clamping opening is used for penetrating through the moving piece;
the electromagnet assembly is positioned in the accommodating cavity and fixedly connected to the shell;
the clamping assembly is positioned in the accommodating cavity and comprises a locking piece, one end of the clamping assembly is fixed at one end of the shell, which is close to the clamping opening, and the moving piece penetrates through the clamping assembly through the clamping opening; and
the attraction assembly is positioned in the accommodating cavity and is provided with an ejecting part and a releasing part, the attraction assembly can be attracted to the electromagnet assembly so that the ejecting part abuts against the locking part, and the locking part locks the moving part;
after the electro-magnet subassembly outage, the actuation subassembly can be followed and is kept away from the direction removal of electro-magnet subassembly, so that the release portion with the retaining member is counterpointed, the retaining member pine takes off the motion piece.
In some embodiments, the engaging assembly includes:
the clamping assembly is sleeved in the outer sleeve, and the pushing part and the releasing part are formed on the inner circumferential surface of the outer sleeve;
the magnetizer is fixedly connected with the outer sleeve, and after the electromagnet assembly is electrified, the magnetizer can move in the direction close to the electromagnet assembly and is sucked on the electromagnet assembly; and
the outer elastic piece is connected with the outer sleeve, and after the electromagnet assembly is powered off, the outer elastic piece can drive the outer sleeve and the magnetizer to move in the direction away from the electromagnet assembly.
In some embodiments, the inner circumferential wall of the outer sleeve forms a first annular surface, a second annular surface, and a third annular surface connecting the first annular surface and the second annular surface, the diameter of the first annular surface is smaller than that of the second annular surface, the pushing portion is the first annular surface, and the releasing portion is the second annular surface or the third annular surface.
In some embodiments, the first annulus is a cylindrical surface; and/or the second ring surface is a cylindrical surface; and/or the third annular surface is a conical surface.
In some embodiments, the electromagnet assembly is fixedly connected to the upper end of the housing, the upper end of the outer elastic member is connected to the upper end of the housing, and the lower end of the outer elastic member is connected to the outer sleeve; or the like, or, alternatively,
the electromagnet assembly is fixedly connected to the upper end of the shell, the upper end of the outer elastic piece is connected with the outer sleeve, and the lower end of the outer elastic piece is connected with the lower end of the shell; or the like, or, alternatively,
the electromagnet assembly is fixedly connected to the lower end of the shell, the upper end of the outer elastic piece is connected with the upper end of the shell, and the lower end of the outer elastic piece is connected with the outer sleeve; or the like, or, alternatively,
the electromagnet assembly is fixedly connected to the lower end of the shell, the upper end of the outer elastic piece is connected with the outer sleeve, and the lower end of the outer elastic piece is connected with the lower end of the shell.
In some embodiments, the outer sleeve is formed with a flange, the outer elastic member is connected to the flange, and the magnetizer is fixedly connected to the flange.
In some embodiments, the clamping assembly further comprises a middle sleeve, the lower end of the middle sleeve is fixed at one end, close to the clamping opening, of the shell, the moving part penetrates through the clamping opening and is arranged in the middle sleeve, at least one locking groove is formed in the circumferential wall of the middle sleeve, and the locking part can move in the locking groove.
In some embodiments, the locking member is a ball, and the moving member is formed with a circumferential groove to be engaged with the ball; or the like, or, alternatively,
the locking piece is a ball body, and the moving piece is provided with a groove matched with the ball body.
In some embodiments, the electromagnetic locking mechanism further comprises a stopping component, the upper end of the stopping component is connected with the shell, and the stopping component abuts against the locking component after the electromagnet component is powered off.
In some embodiments, the stop assembly comprises:
the inner sleeve is sleeved in the clamping assembly; and
interior elastic component, both ends respectively with the inner skleeve with the casing is connected, interior elastic component have with the inner skleeve is followed the ejecting elasticity of the uncovered direction of centre gripping, so that the circumference wall of inner skleeve can the butt after the electro-magnet subassembly outage retaining member.
In some embodiments, an end of the inner sleeve distal from the clamping opening is formed with a stop collar that prevents the inner sleeve from sliding out of the clamping assembly.
In some embodiments, the electromagnetic locking mechanism further includes a guide tube communicating with the clamping opening, the moving member is inserted into the clamping opening through the guide tube, and the moving member is formed with a guide convex ring, and the guide convex ring is slidably connected with the inner peripheral wall of the guide tube.
Another aspect of the embodiments of the present application provides a reactor movement apparatus, including:
the electromagnetic locking mechanism of any one of the preceding claims.
The embodiment of the application provides an electromagnetism locking mechanism, including casing, electromagnet assembly, centre gripping subassembly, actuation subassembly and motion. Under the condition of accident or power failure, the electromagnet assembly is powered off, the attraction assembly moves along the direction far away from the electromagnet assembly, and the locking member of the clamping assembly retreats to the releasing part of the attraction assembly, so that the moving member is separated and can move under the dead weight or external force. When circular telegram locking state, top portion butt retaining member pushes away, retaining member locking moving part, and the retaining member can bear great axial tension. After the electromagnetic locking mechanism is powered off, the stroke of the clamping assembly for releasing the moving part is purely mechanical operation, so that the electromagnetic locking mechanism can be widely applied to the moving equipment of the conventional nuclear reactor, and the working reliability is high.
Drawings
Fig. 1 is a schematic structural diagram of an electromagnetic locking mechanism in an energized locking state according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram illustrating an electromagnetic locking mechanism in a power-off release state according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of an electromagnetic locking mechanism in an embodiment of the present application, schematically illustrating an electromagnet assembly located at a lower end of a housing;
FIG. 4 is a schematic structural view of an electromagnetic locking mechanism in an embodiment of the present application, schematically illustrating an outer resilient member between a lower end of a housing and an outer sleeve; and
fig. 5 is a schematic structural diagram of a moving part of the electromagnetic locking mechanism in an embodiment of the present application.
Description of reference numerals:
a moving member 1; a ring groove 1 a; a guide convex ring 11; a housing 2; the accommodation chamber 2 a; a clamping opening 2 b; an electromagnet assembly 3; a clamping assembly 4; a locking member 41; a middle sleeve 42; the locking groove 42 a; a step surface 421; a suction assembly 5; a first annulus 51; a second ring surface 52; an outer sleeve 53; a flange 531; a magnetizer 54; an outer elastic member 55; a third annulus 56; a stopper member 6; an inner sleeve 61; a limit convex ring 611; an inner elastic member 62; and a guide tube 7.
Detailed Description
It should be noted that the various embodiments/implementations provided in this application can be combined with each other without contradiction. The detailed description in the specific embodiments should be understood as an illustration of the spirit of the application and not as an undue limitation of the application.
In the description of the present application, the terms "upper" and "lower" are used in an orientation or positional relationship based on the electromagnetic locking mechanism of fig. 1, it being understood that these orientation terms are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present application. The term "first/second" merely distinguishes between different objects and does not denote the same or a relationship between the two.
Referring to fig. 1, the electromagnetic locking mechanism includes a moving member 1, a housing 2, an electromagnet assembly 3, a clamping assembly 4, and an attraction assembly 5. The housing 2 is formed with an accommodation cavity 2a and a holding opening 2b, and the holding opening 2b is used for penetrating the moving member 1. Electromagnet assembly 3 is located and holds chamber 2a, and electromagnet assembly 3 fixed connection is on casing 2. Specifically, the electromagnet assembly 3 includes a yoke and a coil wound on the yoke, and the coil after being energized enables the yoke to generate a certain magnetic attraction force. The centre gripping subassembly 4 is located and holds chamber 2a, and centre gripping subassembly 4 includes retaining member 41, and the one end of centre gripping subassembly 4 is fixed and is close to the open 2 b's of centre gripping one end at casing 2, and moving part 1 wears to establish in centre gripping subassembly 4 through the open 2b of centre gripping. Actuation subassembly 5 is located and holds chamber 2a, and actuation subassembly 5 is formed with top push portion and release portion, and actuation subassembly 5 can be inhaled in electromagnet assembly 3 to make top push portion butt retaining member 41, retaining member 41 locking motion 1. After the electromagnet assembly 3 is powered off, the attraction assembly 5 can move along the direction far away from the electromagnet assembly 3, so that the release part is aligned with the locking part 41, and the locking part 41 releases the moving part 1. That is, the electromagnetic locking mechanism has two states, which are an energized locking state and a de-energized releasing state, respectively.
When the electromagnetic locking mechanism is in a power-off release state, the electromagnet assembly 3 is not electrified, the locking member 41 is aligned with the release part, and the moving member 1 and the locking member 41 are in a separation state. After the electromagnetism locking mechanism circular telegram, electromagnet assembly 3 got electric, and the inside yoke of electromagnet assembly 3 will have magnetic attraction to attract actuation subassembly 5 and the 3 actuation of electromagnet assembly, thereby make centre gripping subassembly 4 and actuation subassembly 5 produce relative motion, so that retaining member 41 and release portion separate, push up portion and retaining member 41 counterpoint, push up portion drive retaining member 41 locking moving part 1, electromagnetism locking mechanism converts circular telegram locking state into this moment.
When the electromagnetic locking mechanism is in a power-on locking state, the electromagnet assembly 3 is electrified, the attraction assembly 5 and the electromagnet assembly 3 are in an attraction state, the pushing part is aligned with the locking part 41, and the locking part 41 locks the moving part 1. After the outage of electromagnetic locking mechanism, electromagnet assembly 3 loses the electricity, and the inside yoke of electromagnet loses magnetic attraction, and actuation subassembly 5 breaks away from electromagnet assembly 3 to make release portion and retaining member 41 counterpoint, thereby retaining member 41 pine takes off motion 1, and electromagnetic locking mechanism converts the outage release state this moment.
On one hand, under the condition of an accident or power failure, the electromagnet assembly 3 loses power, the attraction assembly 5 moves in the direction away from the electromagnet assembly 3, the locking member 41 of the clamping assembly 4 retracts to the release portion of the attraction assembly 5, and therefore the moving member 1 is separated from the electromagnetic locking mechanism, and the moving member 1 can move under the self weight or external force. When the locking state is powered on, the pushing part abuts against the locking part 41, the locking part 41 locks the moving part 1, and the locking part 41 can bear larger axial tension. On the other hand, each component assembly of the electromagnetic locking mechanism is positioned in the shell 2, the structure is compact, the locking or loosening control can be realized only by switching on and off the electromagnet assembly 3, and the control is simple and convenient. On the other hand, after the electromagnetic locking mechanism is powered off, the stroke of the clamping component 4 for releasing the moving part 1 is purely mechanical operation, so that the electromagnetic locking mechanism can be widely applied to moving equipment of the existing nuclear reactor, and the working reliability is high.
The connection mode of the electromagnet assembly 3 and the housing 2 and the connection mode of the clamping assembly 4 and the housing 2 are not limited, and exemplary connection modes include but are not limited to bolt connection, screw connection, welding, gluing and the like.
In one embodiment, referring to fig. 1, the engaging assembly 5 includes an outer sleeve 53, a magnetizer 54 and an outer elastic member 55. The clamping assembly 4 is sleeved in the outer sleeve 53, and an ejecting part and a releasing part are formed on the inner circumferential surface of the outer sleeve 53. The magnetizer 54 is fixedly connected with the outer sleeve 53. After the electromagnet assembly 3 is powered on, the magnetizer 54 can move in the direction close to the electromagnet assembly 3 and attract the electromagnet assembly 3. That is, the magnetizer 54 disposed on the outer sleeve 53 can be attracted by the yoke of the electromagnet assembly 3 after being energized, so as to drive the outer sleeve 53 and the outer elastic member 55 connected to the outer sleeve 53 to move together in the direction of the electromagnet assembly 3, so that the pushing portion on the inner circumferential surface of the outer sleeve 53 is aligned with the locking member 41, and the locking of the moving member 1 is realized.
The outer elastic member 55 is connected to the outer sleeve 53, and after the electromagnet assembly 3 is powered off, the outer elastic member 55 can drive the outer sleeve 53 and the magnetizer 54 to move in a direction away from the electromagnet assembly 3. That is, the outer elastic member 55 has elasticity and provides an elastic force to move the outer sleeve 53 and the magnetizer 54 in a direction away from the electromagnet assembly 3, the magnetizer 54 is no longer subjected to the magnetic attraction of the electromagnet assembly 3 after the power is off, the outer elastic member 55 can drive the outer sleeve 53 and the magnetizer 54 to move away from the electromagnet assembly 3, so that the releasing portion on the inner circumferential surface of the outer sleeve 53 is aligned with the locking member 41, and the moving member 1 is released.
The material of the magnetizer 54 is not limited, and the magnetizer 54 includes but not limited to a mixed material containing a magnetic metal such as iron, nickel or cobalt. In an exemplary embodiment, the magnetic conductor 54 is an armature, which is low in cost and easy to machine.
The connection manner of the magnetizer 54 and the outer sleeve 53 is not limited, and the connection manner includes, but is not limited to, bolt connection, screw connection, welding, gluing, etc.
The specific structure of the outer elastic member 55 is not limited, and the outer elastic member 55 includes, but is not limited to, a spring, a bellows, and the like, as an example.
The connecting position of the magnetizer 54 and the outer sleeve 53 and the connecting position of the outer elastic member 55 and the outer sleeve 53 are not limited, and a connecting node may be provided at an appropriate position such as an end portion and a circumferential wall of the outer sleeve 53. In an exemplary embodiment, referring to fig. 2, the outer sleeve 53 is formed with a flange 531, the outer elastic member 55 is connected to the flange 531, and the magnetic conductor 54 is fixedly connected to the flange 531. By providing the flange 531, the outer elastic member 55 and the magnetic conductor 54 can be connected to the outer sleeve 53 more stably through the flange 531, so as to transmit the elastic force and the magnetic attraction force.
In an embodiment, referring to fig. 1 and fig. 2, the inner peripheral wall of the outer sleeve 53 forms a first ring surface 51, a second ring surface 52, and a third ring surface 56 connecting the first ring surface 51 and the second ring surface 52, the diameter of the first ring surface 51 is smaller than the diameter of the second ring surface 52, the pushing portion is the first ring surface 51, and the releasing portion is the second ring surface 52. That is, the locking and releasing of the movement 1 by the clamp assembly 4 are both achieved by the abutment of the inner peripheral wall of the outer sleeve 53 and the locking member 41. When the locking member 41 is aligned with the first annular surface 51, the first annular surface 51 pushes the locking member to move in a direction close to the radial direction of the moving member 1, so that the locking member 41 locks the moving member 1. After the locking member 41 is aligned with the second annular surface 52, since the diameter of the second annular surface 52 is larger than that of the first annular surface 51, the second annular surface 52 can provide a space for releasing the locking member 41 from the moving member 1, and then the moving member 1 can push the locking member away in a radial direction away from the moving member 1 under the action of external force, so that the locking member 41 can release the moving member 1.
In one embodiment, the inner peripheral wall of the outer sleeve 53 forms a first ring surface 51, a second ring surface 52, and a third ring surface 56 connecting the first ring surface 51 and the second ring surface 52, the diameter of the first ring surface 51 is smaller than the diameter of the second ring surface 52, the pushing portion is the first ring surface 51, and the releasing portion is the third ring surface 56. Since the third annular surface 56 is connected between the first annular surface 51 and the second annular surface 52, the third annular surface 56 provides a transition effect and also provides space for the locking member 41 to release the movement member 1.
In one embodiment, the first annular surface 51 is a cylindrical surface. Because the first ring surface 51 is used for locking the moving part 1, the normal direction of the cylindrical surface is vertical to the axial direction of the moving part 1, so that the first ring surface 51 can only bear the acting force vertical to the axial direction of the moving part 1, but not bear the component force along the axial direction of the moving part 1, therefore, the suction force generated by the electromagnet assembly 3 can maintain the locking state only by overcoming the spring force of the outer elastic part 55, and the working reliability of the electromagnetic locking mechanism is improved.
In one embodiment, the second annular surface 52 is cylindrical. In this manner, the outer sleeve 53 can be made compact.
In one embodiment, the third annular surface 56 is a conical surface. Illustratively, the conical surface of the third annular surface 56 increases in diameter in a direction away from the first annular surface 51 until the third annular surface 56 joins the second annular surface 52. So, when retaining member 41 switches to the cooperation with first anchor ring 51 with the cooperation of second anchor ring 52, set up to the third anchor ring 56 of circular conical surface and have the transition effect, can make the switching of circular telegram locking state and outage release state of electromagnetism locking mechanism more smooth and easy, difficult jamming.
In one embodiment, referring to fig. 1 to 4, the electromagnet assembly 3 is fixedly connected to the upper end of the housing 2, the upper end of the outer elastic member 55 is connected to the upper end of the housing 2, and the lower end of the outer elastic member 55 is connected to the outer sleeve 53; or the like, or, alternatively,
the electromagnet assembly 3 is fixedly connected to the upper end of the shell 2, the upper end of the outer elastic piece 55 is connected with the outer sleeve 53, and the lower end of the outer elastic piece 55 is connected with the lower end of the shell 2; or the like, or, alternatively,
the electromagnet assembly is fixedly connected to the lower end of the shell, the upper end of the outer elastic piece is connected with the upper end of the shell, and the lower end of the outer elastic piece is connected with the outer sleeve; or the like, or, alternatively,
the electromagnet assembly is fixedly connected to the lower end of the shell, the upper end of the outer elastic piece is connected with the outer sleeve, and the lower end of the outer elastic piece is connected with the lower end of the shell. That is, the electromagnet assembly 3 and the outer elastic member 55 can be arranged in at least four ways in the housing 2.
For example, referring to fig. 1 and 2, the electromagnet assembly 3 is fixedly connected to the upper end of the housing 2. The outer elastic member 55 is, for example, a compression spring, and is in contact with a space between the upper end of the housing 2 and the outer sleeve 53. When the electromagnet assembly 3 is powered on, the locking member 41 is aligned with the pushing portion, the outer elastic member 55 is in a pressed state, and after the electromagnet assembly 3 is powered off, the outer elastic member 55 can provide downward thrust along the axial direction of the moving member 1, so that the locking member 41 is aligned with the releasing portion.
For example, referring to fig. 4, the electromagnet assembly 3 is fixedly connected to the upper end of the housing 2. The outer elastic member 55 is, for example, a tension spring, and is in contact with a space between the lower end of the housing 2 and the outer sleeve 53. When the electromagnet assembly 3 is powered on, the locking member 41 is aligned with the pushing portion, the outer elastic member 55 is in a pulled state, and after the electromagnet assembly 3 is powered off, the outer elastic member 55 can provide a downward pulling force along the axial direction of the moving member 1, so that the locking member 41 is aligned with the releasing portion.
For example, referring to fig. 3, the electromagnet assembly 3 is fixedly connected to the lower end of the housing 2. The outer elastic member 55 is, for example, a compression spring, and is in contact with a space between the lower end of the housing 2 and the outer sleeve 53. When the electromagnet assembly 3 is powered on, the locking member 41 is aligned with the pushing portion, the outer elastic member 55 is in a pressed state, and after the electromagnet assembly 3 is powered off, the outer elastic member 55 can provide upward thrust along the axial direction of the moving member 1, so that the locking member 41 is aligned with the releasing portion.
Similarly, the electromagnet assembly 3 may also be fixedly connected to the lower end of the housing 2. The outer elastic member 55 is, for example, a tension spring, and is in contact with the upper end of the housing 2 and the outer sleeve 53. When the electromagnet assembly 3 is powered on, the locking member 41 is aligned with the pushing portion, the outer elastic member 55 is in a pulled state, and after the electromagnet assembly 3 is powered off, the outer elastic member 55 can provide upward pulling force along the axial direction of the moving member 1, so that the locking member 41 is aligned with the releasing portion.
In one embodiment, referring to fig. 1, the clamping assembly 4 further includes a middle sleeve 42, a lower end of the middle sleeve 42 is fixed at an end of the housing 2 close to the clamping opening 2b, the moving member 1 is inserted into the middle sleeve 42 through the clamping opening 2b, at least one locking groove 42a is formed on a circumferential wall of the middle sleeve 42, and the locking member 41 can move in the locking groove 42 a. On the one hand, the middle sleeve 42 can play a certain guiding role for the movement of the moving element 1. On the other hand, the locking groove 42a can limit the locking member 41, and can ensure that the locking member can move only in the radial direction of the moving member 1.
Illustratively, in one embodiment, the middle sleeve 42 is provided with three locking grooves 42a uniformly arranged along the circumference of the middle sleeve 42, and the shapes of the locking grooves 42a are adapted to the shapes of the locking members 41 so as to facilitate the movement of the locking members 41 in the locking grooves 42 a.
In one embodiment, referring to fig. 1 and 5, the locking member 41 is a ball, and the moving member 1 is formed with a circular groove 1a for engaging with the ball. Illustratively, the ring groove 1a is a cambered ring groove 1a recessed towards the inside of the moving element 1, the arc radius of the cambered surface is slightly larger than the radius of the ball so as to be matched and locked with the ball, and meanwhile, the axial play clearance of the moving element 1 when the moving element is locked can be controlled by adjusting the arc radius of the cambered surface.
In one embodiment, the locking member 41 is a ball, and the moving member 1 is formed with a groove for fitting the ball. The influence of the groove on the structural strength of the moving part 1 is small, and the matching of the moving part 1 and the ball body can be more compact. Illustratively, the groove is formed into a semi-sphere, the spherical radius of the semi-sphere is slightly larger than the radius of the sphere so as to be matched and locked with the sphere, and meanwhile, the axial play clearance of the moving part 1 when the moving part is locked can be controlled by adjusting the size of the spherical radius of the semi-sphere.
In an embodiment, referring to fig. 1 and fig. 2, the electromagnetic locking mechanism further includes a stopping assembly 6, the upper end of the stopping assembly 6 is connected to the housing 2, and after the electromagnet assembly 3 is powered off, the lower end of the stopping assembly 6 can push the moving member 1 to move out of the locking position and abut against the locking member 41. That is to say, after electromagnet assembly 3 cuts off the power supply, retaining member 41 releases moving member 1, and moving member 1 may receive the external force effect and directly move downward along the axial direction, and may also not receive the external force effect, and moving member 1 is pushed out of the locking position by stopping assembly 6 along the axial direction downward. Therefore, on the one hand, the stop assembly 6 is arranged to abut against the locking member 41 after the locking member 41 releases the moving member 1, so that the releasing probability of the locking member 41 is reduced, and the reliability of the electromagnetic locking mechanism is improved. On the other hand, the stop assembly 6 can provide a partial pushing force to push the moving element 1 axially downward, which facilitates the release of the moving element 1 after power failure.
Specifically, in one embodiment, referring to fig. 1 and 2, the stop assembly 6 includes an inner sleeve 61 and an inner resilient member 62. The inner sleeve 61 is fitted in the clamping assembly 4. The inner elastic member 62 is connected at both ends to the inner sleeve 61 and the housing 2, respectively. The inner elastic member 62 has an elastic force for pushing out the inner sleeve 61 in the direction of the clamping opening 2b so that the circumferential wall of the inner sleeve 61 can abut against the locking member 41 after the electromagnet assembly 3 is powered off.
The specific structure of the inner elastic member 62 is not limited, and the inner elastic member 62 includes, but is not limited to, a spring, a bellows, and the like, as an example.
The connection position of the inner elastic member 62 is not limited, and a connection node may be provided at an appropriate position such as an end portion of the inner sleeve 61, a circumferential wall, or the like. Illustratively, referring to fig. 1 and 2, the inner elastic member 62 abuts between the upper end of the housing 2 and the upper end of the inner sleeve 61.
In one embodiment, referring to fig. 2, a limiting protrusion ring 611 is formed at an end of the inner sleeve 61 away from the clamping opening 2b to prevent the inner sleeve 61 from sliding out of the clamping assembly 4. Illustratively, the middle sleeve 42 is correspondingly provided with a step surface 421, and the limit protruding ring 611 and the step surface 421 stop each other to prevent the inner sleeve 61 from moving excessively to be removed from the housing 2 after the moving member 1 is moved out in the axial direction.
In an embodiment, referring to fig. 1, fig. 2 and fig. 5, the electromagnetic locking mechanism further includes a guide tube 7 communicating with the clamping opening 2b, the moving member 1 is inserted into the clamping opening 2b through the guide tube 7, and the moving member 1 is formed with a guide convex ring 11. The guide convex ring 11 is connected with the inner peripheral wall of the guide tube 7 in a sliding way. When the moving element 1 moves in the guide tube 7, the guide convex ring 11 ensures the coaxiality of the moving element 1 and the guide tube 7.
In an exemplary embodiment, referring to fig. 5, an annular surface of the guide protruding ring 11 contacting with the inner peripheral wall of the guide tube 7 is a curved surface protruding to the outside of the moving element 1, which facilitates smooth penetration of the moving element 1 into the clamping opening 2 b. The end of the middle sleeve 42 close to the clamping opening 2b and the moving member 1 are provided with chamfers to facilitate the insertion of the moving member 1 into the middle sleeve 42.
The application further provides a reactor moving device, which comprises the electromagnetic locking mechanism. The electromagnetic locking mechanism provided by the application has smaller volume and higher reliability, and can be applied to moving equipment of a reactor as key equipment.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and all the changes or substitutions should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (13)
1. An electromagnetic locking mechanism, comprising:
a moving member;
the shell is provided with an accommodating cavity and a clamping opening, and the clamping opening is used for penetrating through the moving piece;
the electromagnet assembly is positioned in the accommodating cavity and fixedly connected to the shell;
the clamping assembly is positioned in the accommodating cavity and comprises a locking piece, one end of the clamping assembly is fixed at one end of the shell, which is close to the clamping opening, and the moving piece penetrates through the clamping assembly through the clamping opening; and
the attraction assembly is positioned in the accommodating cavity and is provided with an ejecting part and a releasing part, the attraction assembly can be attracted to the electromagnet assembly so that the ejecting part abuts against the locking part, and the locking part locks the moving part;
after the electro-magnet subassembly outage, the actuation subassembly can be followed and is kept away from the direction removal of electro-magnet subassembly, so that the release portion with the retaining member is counterpointed, the retaining member pine takes off the motion piece.
2. The electromagnetic locking mechanism of claim 1 wherein the engaging assembly comprises:
the clamping assembly is sleeved in the outer sleeve, and the pushing part and the releasing part are formed on the inner circumferential surface of the outer sleeve;
the magnetizer is fixedly connected with the outer sleeve, and after the electromagnet assembly is electrified, the magnetizer can move in the direction close to the electromagnet assembly and is sucked on the electromagnet assembly; and
the outer elastic piece is connected with the outer sleeve, and after the electromagnet assembly is powered off, the outer elastic piece can drive the outer sleeve and the magnetizer to move in the direction away from the electromagnet assembly.
3. The electromagnetic locking mechanism according to claim 2, wherein the inner peripheral wall of the outer sleeve forms a first annular surface, a second annular surface, and a third annular surface connecting the first annular surface and the second annular surface, the diameter of the first annular surface is smaller than that of the second annular surface, the pushing portion is the first annular surface, and the releasing portion is the second annular surface or the third annular surface.
4. The electromagnetic locking mechanism of claim 3 wherein the first annular surface is cylindrical; and/or the second ring surface is a cylindrical surface; and/or the third annular surface is a conical surface.
5. An electromagnetic locking mechanism according to claim 2,
the electromagnet assembly is fixedly connected to the upper end of the shell, the upper end of the outer elastic piece is connected to the upper end of the shell, and the lower end of the outer elastic piece is connected to the outer sleeve; or the like, or, alternatively,
the electromagnet assembly is fixedly connected to the upper end of the shell, the upper end of the outer elastic piece is connected with the outer sleeve, and the lower end of the outer elastic piece is connected with the lower end of the shell; or the like, or, alternatively,
the electromagnet assembly is fixedly connected to the lower end of the shell, the upper end of the outer elastic piece is connected with the upper end of the shell, and the lower end of the outer elastic piece is connected with the outer sleeve; or the like, or, alternatively,
the electromagnet assembly is fixedly connected to the lower end of the shell, the upper end of the outer elastic piece is connected with the outer sleeve, and the lower end of the outer elastic piece is connected with the lower end of the shell.
6. The electromagnetic locking mechanism according to claim 2, wherein the outer sleeve is formed with a flange, the outer elastic member is connected with the flange, and the magnetizer is fixedly connected with the flange.
7. The electromagnetic locking mechanism according to any one of claims 1 to 6, wherein the clamping assembly further comprises a middle sleeve, the lower end of the middle sleeve is fixed at one end of the housing close to the clamping opening, the moving member is arranged in the middle sleeve in a penetrating manner through the clamping opening, at least one locking groove is formed in the circumferential wall of the middle sleeve, and the locking member can move in the locking groove.
8. The electromagnetic locking mechanism according to any one of claims 1 to 6, wherein the locking member is a ball, and the moving member is formed with a ring groove engaged with the ball; or the like, or, alternatively,
the locking piece is a ball body, and the moving piece is provided with a groove matched with the ball body.
9. The electromagnetic locking mechanism according to any one of claims 1 to 6, further comprising a stop assembly, wherein the upper end of the stop assembly is connected to the housing, and the stop assembly abuts against the locking member after the electromagnet assembly is powered off.
10. The electromagnetic locking mechanism of claim 9 wherein the stop assembly comprises:
the inner sleeve is sleeved in the clamping assembly; and
interior elastic component, both ends respectively with the inner skleeve with the casing is connected, interior elastic component have with the inner skleeve is followed the ejecting elasticity of the uncovered direction of centre gripping, so that the circumference wall of inner skleeve can the butt after the electro-magnet subassembly outage retaining member.
11. An electromagnetic locking mechanism according to claim 10 wherein the end of the inner sleeve remote from the clamping opening is formed with a retaining collar to prevent the inner sleeve from sliding out of the clamping assembly.
12. The electromagnetic locking mechanism according to any one of claims 1 to 6, further comprising a guide tube communicating with the clamping opening, wherein the moving member is inserted into the clamping opening through the guide tube, and a guide convex ring is formed on the moving member and slidably connected to an inner peripheral wall of the guide tube.
13. A reactor locomotion apparatus, comprising:
an electromagnetic locking mechanism as claimed in any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110829085.4A CN113628768A (en) | 2021-07-22 | 2021-07-22 | Electromagnetic locking mechanism and reactor movement equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110829085.4A CN113628768A (en) | 2021-07-22 | 2021-07-22 | Electromagnetic locking mechanism and reactor movement equipment |
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| Publication Number | Publication Date |
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| CN113628768A true CN113628768A (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110829085.4A Pending CN113628768A (en) | 2021-07-22 | 2021-07-22 | Electromagnetic locking mechanism and reactor movement equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898689A (en) * | 2021-11-11 | 2022-01-07 | 鞍山电磁阀有限责任公司 | Driving rack locking device |
| CN114188047A (en) * | 2021-12-03 | 2022-03-15 | 中国原子能科学研究院 | Reactivity control device |
| CN115045924A (en) * | 2022-06-15 | 2022-09-13 | 中国原子能科学研究院 | Electromagnetic clutch and nuclear reactor |
-
2021
- 2021-07-22 CN CN202110829085.4A patent/CN113628768A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898689A (en) * | 2021-11-11 | 2022-01-07 | 鞍山电磁阀有限责任公司 | Driving rack locking device |
| CN114188047A (en) * | 2021-12-03 | 2022-03-15 | 中国原子能科学研究院 | Reactivity control device |
| CN114188047B (en) * | 2021-12-03 | 2024-05-14 | 中国原子能科学研究院 | Reactivity control device |
| CN115045924A (en) * | 2022-06-15 | 2022-09-13 | 中国原子能科学研究院 | Electromagnetic clutch and nuclear reactor |
| CN115045924B (en) * | 2022-06-15 | 2023-08-18 | 中国原子能科学研究院 | Electromagnetic clutch and nuclear reactor |
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