CN209526649U - Safe rod drive mechanism transmission device - Google Patents
Safe rod drive mechanism transmission device Download PDFInfo
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- CN209526649U CN209526649U CN201920396965.5U CN201920396965U CN209526649U CN 209526649 U CN209526649 U CN 209526649U CN 201920396965 U CN201920396965 U CN 201920396965U CN 209526649 U CN209526649 U CN 209526649U
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Abstract
The utility model discloses a kind of safe rod drive mechanism transmission devices, including electromagnetic clutch, the electromagnetic clutch includes coil windings annular in shape, the outer barrel and inner cylinder being set on the inside of coil windings, in both the outer barrel and inner cylinder, one of them is as power rotor, another one is as driven rotor, and in the inner hole of inner cylinder insertion outer barrel, it further include connecting cylinder, the annular groove along connecting cylinder circumferential direction is provided on the connecting cylinder, the coil windings are set in the annular groove；Further include the cover board being connected on connecting cylinder, there is the gap as wire casing, the wire casing is at least communicated with one end of connecting cylinder, and cover board is as the boundary on the outside of wire casing between the cover board and coil windings outside.The structure design of this transmission device may make it to have the characteristics that long service life, reliable performance.
Description
Technical field
The utility model relates to technical field of nuclear power, more particularly to a kind of safe rod drive mechanism transmission device.
Background technique
Safe rod drive mechanism (control rod drive mechanism) is important component or equipment in reactor, lower end connection peace
Full stick (control rod), such as under emergency work condition, discharging safety rod to realize reactor emergency shut-down.Normal reactor operation
When safety rod be maintained at highest point for a long time, once accident occurs, safe rod drive mechanism changes its constraint, and safety rod is quick
It is inserted into reactor core, so that reactor is realized emergency shut-down, to guarantee the safety of reactor.
In control rod drive mechanism, spindle drive chain generally by gear driving have rack gear main shaft above mention or under
It inserts, to realize reactor emergency shut-down under emergency work condition, occurs electromagnetic clutch of connecting on spindle drive chain in the prior art
The implementation of device.
The structure design of control rod drive mechanism is advanced optimized, so that it is with longer service life and preferably
Performance reliability is those skilled in the art's technical problem urgently to be resolved.
Utility model content
For the structure design for advanced optimizing control rod drive mechanism set forth above, so that it makes with longer
It is those skilled in the art's technical problem urgently to be resolved with service life and better performance reliability, the utility model provides
The structure design of a kind of safe rod drive mechanism transmission device, this transmission device may make it with long service life, property
The reliable feature of energy.
Safe rod drive mechanism provided by the utility model is solved the problems, such as with transmission device by following technical essential: peace
Full rod drive mechanism transmission device, including electromagnetic clutch, the electromagnetic clutch include coil windings annular in shape, setting
Outer barrel and inner cylinder on the inside of coil windings, in both the outer barrel and inner cylinder, one of them as power rotor,
Another one further includes connecting cylinder, is provided on the connecting cylinder as driven rotor, and in the inner hole of inner cylinder insertion outer barrel
Along the annular groove of connecting cylinder circumferential direction, the coil windings are set in the annular groove；
Further include the cover board being connected on connecting cylinder, has between the cover board and coil windings outside as between wire casing
Gap, the wire casing are at least communicated with one end of connecting cylinder, and cover board is as the boundary on the outside of wire casing.
In the prior art, the electromagnetic clutch is as spindle drive middle-of-chain connector, i.e. electromagnetism in driving mechanism
Clutch must be connected on spindle drive chain, according to electromagnetic clutch status, control the drive state of spindle drive chain.Together
When, in driving mechanism, the outside of driving mechanism is structure cylinder, and the components such as active transmission chain are installed on the structure cylinder or tie
In structure cylinder, the top of structure cylinder has connecting flange, and when specifically used, the connecting flange position is as nuclear reactor pressure
The boundary of container primary Ioops, structure cylinder lower part are located in the primary Ioops of nuclear reactor pressure container.
This programme is when specifically used, a part of the connecting cylinder as the structure cylinder, i.e., when specifically used, even
Connect cylinder is connected on structure cylinder using the part as structure cylinder, and welded connecting or flange bolt connection can be used in specific connection type
Deng.
In the present solution, since by connecting cylinder, by splitting out on structure cylinder, in this way, during fabrication, this transmission device can be by
The independent manufacture to facilitate this transmission device in control rod drive mechanism such as may be configured as that coiling can be carried out on connecting cylinder
Obtain the coil windings；Electromagnetic clutch installation is carried out by the end of connecting cylinder, i.e. this programme has the characteristics that easily manufactured.
It is set as that there is annular groove on connecting cylinder, the above annular groove is as the space that coil windings are arranged on connecting cylinder, so that coil
Winding is in an annular region to obtain good protection at work；It is set as further including cover board, and cover board and coil
There is the gap as wire casing, and wire casing is at least communicated with one end of connecting cylinder between winding, in this way, carrying out driving mechanism dress
Timing, the wire casing can be used as the threading groove of lead wire in coil windings, the boundary by the cover board as wire casing, so that wearing
Wire casing is that a duct is only communicated with the end of connecting cylinder, can be by the cover board to lead wire after completing driving mechanism assembly
It is isolated with pressure vessel primary Ioops, to ensure this transmission device reliability of operation, that is, uses this programme, this transmission dress
The structure design set may make it to have the characteristics that long service life, reliable performance.
Further technical solution are as follows:
As the specific implementation of cover board, setting are as follows: the arc-shaped plate of cover board, the left and right both ends of cover board with
Connecting cylinder be welded to connect, cover board front and rear sides be fixedly connected on the outside of coil windings.This programme is directed in coil windings and needs
Connect part of the position of lead wire on the outside of coil windings, and have under normal circumstances on the outside of coil windings protective layer with
Guarantee that its internal threads can work reliably and with long-term, be set as the arc-shaped plate of the cover board, in this way, last gained wire casing is practical
Upper is only a strip groove, and for example along the strip groove of connecting cylinder axis direction, the connector lug of coil windings is located at the wire casing
In.Cover board is installed again after such as completing lead wire wiring, the cladding plate using upper cover plate as lead wire and connector lug etc., to realize
Being isolated between lead wire, connector lug and pressure vessel primary Ioops.
As a kind of implementation for facilitating installation, setting are as follows: the cover board is cylindrical, the both ends of cover board with connection
Cylinder is welded to connect.This programme is directed to existing coil windings integrally tubular scheme, in this way, after completion of installation, being equivalent to line
Circle winding is embedded in the inside of cover board, the annular housing that the wire casing as surrounds between the two, for annular housing the case where
Under, no matter which position the connector lug in coil windings is located at, and can realize the buffer action by the cover board.
As those skilled in the art, the above wire casing is communicated with end, for convenience after completing cover board and connecting cylinder assembly,
Obtained structure is connected in driving mechanism in the form of a tubular structure, to facilitate the assembly of driving mechanism, therefore it is preferred that is set
It is set to the annular groove to be located between the both ends of connecting cylinder, in this way, if only defining by the gap of cover board covering is wire casing, at this time line
Slot actually needs to realize the connection with connecting cylinder end by other communicating passages.
As a kind of contactless electromagnetic clutch form during the work time, setting are as follows: on the outside of the inner cylinder
It is additionally provided with a plurality of second axial cord, the described second axial cord annular is distributed on inner cylinder, the outside of the outer barrel
On be additionally provided with a plurality of first axis cord, the first axis cord annular is distributed on outer barrel；
The extending direction of first axis cord along outer barrel axial direction, the extending direction of the second axial cord along
The axial direction of inner cylinder, and also there is gap between the second axial cord and first axis cord, the second axial cord and the
Gap between one axial cord is for avoiding inner cylinder and outer barrel from touching during relatively rotating；
The material of the inner cylinder and the second axial cord is magnetic conductive material；
The outer barrel is connected in series by three sections of cylinder sections, form outer barrel cylinder section include in both ends end barrel section and
In intermediate middle part cylinder section, the material of the end barrel section is magnetic conductive material, and the material of the middle part cylinder section is non-magnetic
Shape material；
The electromagnetic clutch further includes coil rack, and the coil rack includes tubular inner frame and outer skeleton,
It further include end plate, the inner frame, outer skeleton, end plate surround annular space, and the coil windings are installed on the annular space
Interior, the material of the outer skeleton and end plate is magnetic conductive material, and the inner frame overall material is non-permeable material or office
Portion's material is non-permeable material；
It is the part of non-permeable material is tubular every magnetic cylinder when inner frame part material is non-permeable material
Section, and it is described between the both ends that magnetic cylinder section is connected on inner frame；
The inner frame be independently of connecting cylinder absolute construction or be connecting cylinder part.This programme structure design and
In material selection, it is intended to form the magnetic circuit or the magnetic line of force such as under type as far as possible on inner cylinder and outer barrel: pass through outer barrel
Both ends and pass through inner cylinder, and be located across between the part at outer barrel both ends by the part of inner cylinder.In this way, due to outer
It is respectively included on cylinder and inner cylinder as the axial cord of first axis cord and the second axial cord, outer barrel and inner cylinder,
If outer barrel is as power rotor, when outer barrel is driven the torque rotation of device application, outer barrel and inner cylinder are respectively
Between axial cord the magnetic line of force distortion, always attempt to shrink using the magnetic line of force so that make its pass through path on magnetic resistance most
Small feature makes the outer barrel as power rotor opposite with the inner cylinder salient pole center as driven rotor, at this moment, can obtain
Obtaining a tangential component and acting on driven rotor is that driven rotor obtains torque, makes driven rotor that power rotor be followed to rotate,
Electromagnetic clutch is in the connection status of transmitting torque in the case of this.When the above magnetic force heading line off or magnetic flux become smaller, in this case,
Electromagnetic clutch becomes off-state or is gradually returned to off-state.
The electromagnetic clutch is connected on when in use in the spindle drive chain of control rod drive mechanism, to realize urgent work
Stick is released the control under condition, meanwhile, in the above inner cylinder and outer barrel transmitting torque scheme, distorts and complete by the magnetic line of force, therefore with
Upper electromagnetic clutch is that a kind of contactless electromagnetic clutch makes in this way, may make in the electromagnetic clutch course of work without abrasion
Obtaining electromagnetic clutch has the characteristics that long service life, reliable performance.
The structure of the coil rack etc., which designs, is intended to match the generation magnetic circuit, in above scheme, to the shape of inner frame
Formula is intended to so that not generating closed magnetic circuit on coil rack and avoiding to transmit between inner cylinder and outer barrel enough
Big torque.
As a kind of technical solution for facilitating inner frame to process, setting are as follows: the inner frame generally non-permeable material,
The projection of inner frame left end towards left side end plate is fallen within left-hand end edges of boards edge, projection of the inner frame right end towards right side end plate
It falls within right-hand end edges of boards edge.
To enable coil rack to close the annular space to protect coil windings, it is arranged are as follows: the annular space
For airtight cavity.It in the specific implementation, is the cover board of arc panel or cylinder for above-mentioned offer, when due to for arc panel, lid
Plate is only located at part on the outside of coil windings, and when being cylinder, can be used as the whole extraneous boundary of annular groove, therefore using being tubular
Cover board realize this programme.
In the specific implementation, in the inner frame generally non-permeable material material, the end plate is towards outer barrel
Projection fall in end barrel section, and end plate and outer barrel section correspond.
It is described to state inner frame locally be non-permeable material material when, be other of the cylinder section two sides of non-permeable material
The projection of cylinder section towards outer barrel is fallen in end barrel section, and other described sections and outer barrel section correspond.Specifically, can
Setting are as follows: inner cylinder is set on main shaft, and the key for transmitting torque is arranged therebetween, and outer barrel is installed by bearing
On inner cylinder or main shaft, the coil rack of electromagnetic coil is directly anchored on the outer housing of control rod drive mechanism, while
Bearing is set between outer barrel on the inside of coil rack, in this way, electromagnetic coil, inner cylinder can be limited, between outer barrel three
Position.Restriction to the above inner cylinder, the second axial cord, outer barrel structure and material, as described in being set as outer barrel by
Three sections of cylinder sections are connected in series, and the cylinder section for forming outer barrel includes end barrel section in both ends and in intermediate middle part cylinder section,
The material of the end barrel section is magnetic conductive material, and the material of the middle part cylinder section is non-magnetic shape material, it is intended to so that by leading
The magnetic circuit that magnetic material is linked to be passes through the both ends of outer barrel, and will not pass through from the middle part of outer barrel, so that coil windings
After energization, the magnetic flux between first axis cord and the second axial cord is bigger, in this way, magnetic force as described above can be formed
Line, when first axis cord generates relative displacement with the second axial cord, passes through the magnetic line of force so that this programme is at work
The characteristic shunk is attempted, so that between inner cylinder and outer barrel torque can be transmitted with gap.This programme is
Providing one kind specifically can be used as electromagnetic clutch, and contactless between relative movement part during the work time, can avoid
The clutch scheme for fretting wear occur in the course of work and working reliably and with long-term.
As a kind of outer barrel scheme for facilitating manufacture, setting are as follows: the first axis cord is respectively positioned in end barrel section,
And first axis cord is all had in two end barrel sections, the first axle along the circumferential direction of outer barrel, in the cylinder section of both ends
It is in face relationship to cord.I.e. in the present solution, the above main magnetic circuit or the magnetic line of force by the both ends of outer barrel carry out transmitting or
The middle part cylinder section of extension, outer barrel plays linkage function.
It is moved, is arranged are as follows: the first axle with driving spindle to guarantee that electromagnetic clutch can transmit sufficiently large torque
Maximal clearance width to the gap between cord and the second axial cord is 3mm.As those skilled in the art, the above gap
It realizes the relative position that width can constrain between inner cylinder and outer barrel by using corresponding bearing.
For the transmission accuracy for optimizing electromagnetic clutch, setting are as follows: both the outer barrel, inner cylinder are coaxial.
As the above coaxial specific implementation is realized, may be configured as: further include be set to outer barrel and inner cylinder it
Between rolling bearing, the rolling bearing is used to limit the relative position of outer barrel and inner cylinder.Preferably, it is set as inner cylinder
The rolling bearing is all had between respectively holding with outer barrel.
To guarantee that electromagnetic clutch can transmit sufficiently large torque and move with driving spindle, be arranged are as follows: electromagnetic coil with
The maximal clearance width in the gap between outer barrel is 2mm..As those skilled in the art, the above gap width can be by adopting
The relative position between inner cylinder and outer barrel is constrained with corresponding bearing to realize.
Ferrite material, martensitic stain less steel etc. can be used in magnetic conductive material；Non-permeable material, can be used it is nonmetallic,
Austenitic stainless steel etc..
The utility model has the following beneficial effects:
In the present solution, since by connecting cylinder, by splitting out on structure cylinder, in this way, during fabrication, this transmission device can be by
The independent manufacture to facilitate this transmission device in control rod drive mechanism such as may be configured as that coiling can be carried out on connecting cylinder
Obtain the coil windings；Electromagnetic clutch installation is carried out by the end of connecting cylinder, i.e. this programme has the characteristics that easily manufactured.
It is set as that there is annular groove on connecting cylinder, the above annular groove is as the space that coil windings are arranged on connecting cylinder, so that coil
Winding is in an annular region to obtain good protection at work；It is set as further including cover board, and cover board and coil
There is the gap as wire casing, and wire casing is at least communicated with one end of connecting cylinder between winding, in this way, carrying out driving mechanism dress
Timing, the wire casing can be used as the threading groove of lead wire in coil windings, the boundary by the cover board as wire casing, so that wearing
Wire casing is that a duct is only communicated with the end of connecting cylinder, can be by the cover board to lead wire after completing driving mechanism assembly
It is isolated with pressure vessel primary Ioops, to ensure this transmission device reliability of operation, that is, uses this programme, this transmission dress
The structure design set may make it to have the characteristics that long service life, reliable performance.
Detailed description of the invention
Fig. 1 is the cross-sectional view of safe one specific embodiment of rod drive mechanism transmission device described in the utility model；
Fig. 2 is the partial enlarged view of A portion shown in Fig. 1, wherein the dotted line of B instruction indicates needed for electromagnetic clutch work
The magnetic line of force transmission path wanted；
Fig. 3 is the partially schematic of one specific embodiment of safe rod drive mechanism transmission device described in the utility model
Figure, which is side view, for reflecting the structure and matching relationship of outer barrel and inner cylinder；
Fig. 4 is the partially schematic of one specific embodiment of safe rod drive mechanism transmission device described in the utility model
Figure, the partial schematic diagram are used to reflect that the magnetic line of force between first axis cord and the second axial cord, the lines of B instruction to be
The magnetic line of force between both of the above.
Appended drawing reference in figure is successively are as follows: 1, electromagnetic clutch, 11, end plate, and 12, coil windings, 13, outer skeleton, 14, interior
Skeleton, 2, outer barrel, 21, end barrel section, 22, middle part cylinder section, 3, inner cylinder, 4, first axis cord, the 5, second axial cord,
B, the magnetic line of force, 6, cover board, 7, connecting cylinder, 8, wire casing, 9, annular groove.
Specific embodiment
Below with reference to embodiment, the utility model is described in further detail, but the structure of the utility model is not only
It is limited to following embodiment.
Embodiment 1:
As shown in Figures 1 to 4, safe rod drive mechanism transmission device, including electromagnetic clutch 1, the electromagnetic clutch
Device 1 includes coil windings 12 annular in shape, is set to the outer barrel 2 and inner cylinder 3 of 12 inside of coil windings, the outer barrel 2
In 3 the two of inner cylinder, one of them is as power rotor, and another one is as driven rotor, and inner cylinder 3 is embedded in outer barrel 2
Inner hole in, further include connecting cylinder 7, the annular groove 9 along 7 circumferential direction of connecting cylinder, the line be provided on the connecting cylinder 7
Circle winding 12 is set in the annular groove；
Further include the cover board 6 being connected on connecting cylinder 7, has between 12 outside of the cover board 6 and coil windings and be used as line
The gap of slot 8, the wire casing 8 are at least communicated with one end of connecting cylinder 7, and boundary of the cover board 6 as 8 outside of wire casing.
In the prior art, the electromagnetic clutch 1 is as spindle drive middle-of-chain connector, i.e. electromagnetism in driving mechanism
Clutch 1 must be connected on spindle drive chain, according to 1 status of electromagnetic clutch, control the drive state of spindle drive chain.
Meanwhile in driving mechanism, the outside of driving mechanism is structure cylinder, the components such as active transmission chain be installed on the structure cylinder or
In structure cylinder, the top of structure cylinder has connecting flange, and when specifically used, the connecting flange position is as nuclear reaction stacking pressure
The boundary of force container primary Ioops, structure cylinder lower part are located in the primary Ioops of nuclear reactor pressure container.
This programme is when specifically used, a part of the connecting cylinder 7 as the structure cylinder, i.e., when specifically used,
Connecting cylinder 7 is connected on structure cylinder using the part as structure cylinder, and welded connecting or flange bolt can be used in specific connection type
Connection etc..
In the present solution, since by connecting cylinder 7, by splitting out on structure cylinder, in this way, during fabrication, this transmission device can be by
The independent manufacture to facilitate this transmission device in control rod drive mechanism, such as may be configured as can carrying out on connecting cylinder 7 around
Line obtains the coil windings 12；It carries out electromagnetic clutch 1 by the end of connecting cylinder 7 to install, i.e., this programme has easily manufactured
The characteristics of.It is set as that there is annular groove 9 on connecting cylinder 7, the above annular groove 9 is as the sky that coil windings 12 are arranged on connecting cylinder 7
Between, so that coil windings 12 are in an annular region to obtain good protection at work；It is set as further including lid
Plate 6, and there is gap as wire casing 8 between cover board 6 and coil windings 12, and wire casing 8 at least with one end phase of connecting cylinder 7
It is logical, in this way, the wire casing 8 can be used as the threading groove 8 of lead wire in coil windings 12 when carrying out driving mechanism assembly, pass through
Driving is completed so that threading groove 8 is that a duct is only communicated with the end of connecting cylinder 7 in boundary of the cover board 6 as wire casing 8
After mechanism assembly, lead wire and pressure vessel primary Ioops can be isolated by the cover board 6, to ensure this transmission device
Reliability of operation, that is, use this programme, and the structure design of this transmission device may make it with long service life, reliable performance
The characteristics of.
Embodiment 2:
As shown in Figures 1 to 4, the present embodiment is further qualified on the basis of embodiment 1: as the specific of cover board 6
Implementation, setting are as follows: the arc-shaped plate of the cover board 6, the left and right both ends of cover board 6 are welded to connect with connecting cylinder 7, cover board 6
Front and rear sides is fixedly connected with the outside of coil windings 12.This programme, which is directed in coil windings 12, needs to connect lead wire
Position is in the part in 12 outside of coil windings, and 12 outside of coil windings has protective layer to guarantee inside it under normal circumstances
Coiling can work reliably and with long-term, be set as the arc-shaped plate of the cover board 6, in this way, last gained wire casing 8 is actually only one
Strip groove, for example along the strip groove of 7 axis direction of connecting cylinder, the connector lug of coil windings 12 is located in the wire casing 8 i.e.
It can.Cover board 6 is installed again after such as completing lead wire wiring, the cladding plate using upper cover plate 6 as lead wire and connector lug etc. draws to realize
Being isolated between wiring, connector lug and pressure vessel primary Ioops.
As a kind of implementation for facilitating installation, setting are as follows: the cover board 6 is cylindrical, and the both ends of cover board 6 are and even
Connect cylinder 7 is welded to connect.This programme is directed to the whole tubular scheme of existing coil windings 12, in this way, after completion of installation, quite
The inside of cover board 6 is embedded in coil windings 12, the annular housing that the wire casing 8 as surrounds between the two, for annular chamber
In the case where body, no matter which position the connector lug in coil windings 12 is located at, can be realized by the cover board 6 it is described every
From effect.
As those skilled in the art, the above wire casing 8 is communicated with end, for convenience of cover board 6 and the assembly of connecting cylinder 7 is completed
Afterwards, the structure obtained is connected in driving mechanism in the form of a tubular structure, to facilitate the assembly of driving mechanism, therefore it is preferred that
The annular groove is set as to be located between the both ends of connecting cylinder 7, in this way, if only defining by the gap that cover board 6 covers is wire casing 8,
Wire casing 8 actually needs to realize the connection with 7 end of connecting cylinder by other communicating passages at this time.
As a kind of contactless 1 form of electromagnetic clutch during the work time, setting are as follows: the outside of the inner cylinder 3
On be additionally provided with a plurality of second axial cord 5, the described second axial 5 annular of cord is distributed on inner cylinder 3, the outer barrel 2
Outside on be additionally provided with a plurality of first axis cord 4,4 annular of first axis cord is distributed on outer barrel 2；
Axial direction of the extending direction of first axis cord 4 along outer barrel 2, the extending direction of the second axial cord 5
Along the axial direction of inner cylinder 3, and also there is gap between the second axial cord 5 and first axis cord 4, the second axial rib
Gap between item 5 and first axis cord 4 is for avoiding inner cylinder 3 from touching during relatively rotating with outer barrel 2；
The material of the inner cylinder 3 and the second axial cord 5 is magnetic conductive material；
The outer barrel 2 is connected in series by three sections of cylinder sections, and the cylinder section of composition outer barrel 2 includes the end barrel section in both ends
21 and in intermediate middle part cylinder section 22, the material of the end barrel section 21 is magnetic conductive material, the material of the middle part cylinder section 22
Matter is non-magnetic shape material；
The electromagnetic clutch 1 further includes coil rack, and the coil rack includes tubular inner frame 14 and dermoskeleton
Frame 13 further includes end plate 11, and the inner frame 14, outer skeleton 13, end plate 11 surround annular space, and the coil windings 12 are installed
In in the annular space, the material of the outer skeleton 13 and end plate 11 is magnetic conductive material, the whole material of the inner frame 14
Matter is non-permeable material or local material is non-permeable material；
It is the part of non-permeable material is tubular every magnetic when the local material of inner frame 14 is non-permeable material
Cylinder section, and it is described between the both ends that magnetic cylinder section is connected on inner frame 14；
The inner frame 14 be independently of connecting cylinder 7 absolute construction or be connecting cylinder 7 part.The structure of this programme is set
In meter and material selection, it is intended to form the magnetic circuit or magnetic line of force B such as under type as far as possible on inner cylinder 3 and outer barrel 2: pass through
The both ends of outer barrel 2 and pass through inner cylinder 3, and is located across between the part at 2 both ends of outer barrel by the part of inner cylinder 3.
In this way, due to being respectively included on outer barrel 2 and inner cylinder 3 as the axial cord of first axis cord 4 and the second axial cord 5,
Outer barrel 2 and inner cylinder 3, if outer barrel 2 is used as power rotor, when outer barrel 2 is driven the torque rotation of device application,
Magnetic line of force B distortion between outer barrel 2 and the respective axial cord of inner cylinder 3, always attempts to shrink using magnetic line of force B, so that
Feature of magnetic resistance minimum allows the outer barrel 2 as power rotor and the inner cylinder 3 as driven rotor on the path for passing through it
Salient pole center is opposite, at this moment, can be obtained a tangential component act on driven rotor be driven rotor obtain torque, make from
Turn follows power rotor to rotate, and electromagnetic clutch 1 is in the connection status of transmitting torque in the case of this.When the above magnetic line of force
B disappears or magnetic flux becomes smaller, in this case, electromagnetic clutch 1 becomes off-state or is gradually returned to off-state.
The electromagnetic clutch 1 is connected on when in use in the spindle drive chain of control rod drive mechanism, urgent to realize
Stick is released the control under operating condition, meanwhile, the above inner cylinder 3 transmits in torque scheme with outer barrel 2, and it distorts and completes by magnetic line of force B,
Therefore the above electromagnetic clutch 1 is a kind of contactless electromagnetic clutch 1, in this way, may make nothing in 1 course of work of electromagnetic clutch
Abrasion, so that electromagnetic clutch 1 has the characteristics that long service life, reliable performance.
The structure of the coil rack etc., which designs, is intended to match the generation magnetic circuit, in above scheme, to inner frame 14
Form is intended to so that not generating closed magnetic circuit on coil rack and avoiding to transmit between inner cylinder 3 and outer barrel 2
Sufficiently large torque.
As a kind of technical solution for facilitating inner frame 14 to process, setting are as follows: the inner frame 14 generally non-magnetic
Material, the projection of inner frame 14 left end towards left side end plate 11 are fallen within 11 edge of end plate of left side, 14 right end direction of inner frame
The projection of right side end plate 11 is fallen within 11 edge of end plate of right side.
To enable coil rack to close the annular space to protect coil windings 12, it is arranged are as follows: the annular is empty
Between be airtight cavity.It in the specific implementation, is the cover board 6 of arc panel or cylinder for above-mentioned offer, when due to for arc panel,
Cover board 6 is only located at the outside of coil windings 12 part, and when being cylinder, it can be used as the whole extraneous boundary of annular groove 9, thus it is available
This programme is realized for the cover board 6 of tubular.
In the specific implementation, in the generally non-permeable material material of inner frame 14, the end plate 11 is towards outer
The projection of cylinder 2 is fallen in end barrel section 21, and end plate 11 and outer barrel section correspond.
It is described to state the part of inner frame 14 be non-permeable material material when, be its of the cylinder section two sides of non-permeable material
The projection of his cylinder section towards outer barrel 2 is fallen in end barrel section 21, and other described sections and outer barrel section correspond.Specifically
, may be configured as: inner cylinder 3 is set on main shaft, and the key for transmitting torque is arranged therebetween, and outer barrel 2 passes through
Bearing is mounted on inner cylinder 3 or main shaft, and the coil rack of electromagnetic coil is directly anchored to the outer housing of control rod drive mechanism
On, while bearing is set between outer barrel 2 on the inside of coil rack, in this way, electromagnetic coil, inner cylinder 3, outer cylinder can be limited
Position between 2 three of body.Restriction to the axial cord 5 of the above inner cylinder 3, second, 2 structure of outer barrel and material, is such as arranged
It is connected in series for the outer barrel 2 by three sections of cylinder sections, the cylinder section of composition outer barrel 2 includes end barrel section 21 and place in both ends
In intermediate middle part cylinder section 22, the material of the end barrel section 21 is magnetic conductive material, and the material of the middle part cylinder section 22 is non-
Magnetic conduction shape material, it is intended to so that passing through the both ends of outer barrel 2 by the magnetic circuit that magnetic conductive material is linked to be, and will not be from outer barrel 2
Middle part is passed through, so that the magnetic flux between first axis cord 4 and the second axial cord 5 is more after coil windings 12 are powered
Greatly, in this way, magnetic line of force B as described above can be formed, so that this programme is at work, in first axis cord 4 and the second axis
When generating relative displacement to cord 5, the characteristic shunk is attempted by magnetic line of force B, so that can between inner cylinder 3 and outer barrel 2
Torque is transmitted with gap.This programme, which provides one kind, specifically can be used as electromagnetic clutch 1, and work
It is contactless between relative movement part in the process, it can avoid fretting wear occur and the clutch that works reliably and with long-term in the course of work
Device scheme.
As a kind of 2 scheme of outer barrel for facilitating manufacture, setting are as follows: the first axis cord 4 is respectively positioned on end barrel section
On 21, and first axis cord 4 is all had in two end barrel sections 21, along the circumferential direction of outer barrel 2, both ends cylinder section 21
On first axis cord 4 be in face relationship.I.e. in the present solution, the above main magnetic circuit or magnetic line of force B pass through the two of outer barrel 2
End is transmitted or is extended, and the middle part cylinder section 22 of outer barrel 2 plays linkage function.
It is moved, is arranged are as follows: the first axle with driving spindle to guarantee that electromagnetic clutch 1 can transmit sufficiently large torque
Maximal clearance width to the gap between cord 4 and the second axial cord 5 is 3mm.As those skilled in the art, above
It realizes the relative position that gap width can constrain between inner cylinder 3 and outer barrel 2 by using corresponding bearing.
For the transmission accuracy for optimizing electromagnetic clutch 1, setting are as follows: both the outer barrel 2, inner cylinder 3 are coaxial.
As the above coaxial specific implementation is realized, it may be configured as: further including being set to outer barrel 2 and inner cylinder 3
Between rolling bearing, the rolling bearing is used to limit the relative position of outer barrel 2 Yu inner cylinder 3.Preferably, in being set as
Cylinder 3 and outer barrel 2 all have the rolling bearing between respectively holding.
To guarantee that electromagnetic clutch 1 can transmit sufficiently large torque and move with driving spindle, be arranged are as follows: electromagnetic coil with
The maximal clearance width in the gap between outer barrel 2 is 2mm..As those skilled in the art, the above gap width can be by adopting
The relative position between inner cylinder 3 and outer barrel 2 is constrained with corresponding bearing to realize.
Ferrite material, martensitic stain less steel etc. can be used in magnetic conductive material；Non-permeable material, can be used it is nonmetallic,
Austenitic stainless steel etc..
The above content is the further descriptions made in conjunction with specific preferred embodiment to the utility model, cannot recognize
Determine specific embodiment of the present utility model to be only limited to these instructions.For the common skill of the utility model technical field
For art personnel, the other embodiments obtained in the case where not departing from the technical solution of the utility model be should be included in practical
In novel protection scope.
Claims (10)
1. safe rod drive mechanism transmission device, including electromagnetic clutch (1), the electromagnetic clutch (1) includes annular in shape
Coil windings (12), the outer barrel (2) and inner cylinder (3) being set on the inside of coil windings (12), the outer barrel (2) with it is interior
In cylinder (3) the two, one of them is as power rotor, and another one is as driven rotor, and inner cylinder (3) is embedded in outer barrel
(2) in inner hole, which is characterized in that further include connecting cylinder (7), be provided on the connecting cylinder (7) circumferential along connecting cylinder (7)
The annular groove (9) in direction, the coil windings (12) are set in the annular groove (9)；
Further include the cover board (6) being connected on connecting cylinder (7), has between the cover board (6) and coil windings (12) outside and make
For the gap of wire casing (8), the wire casing (8) is at least communicated with one end of connecting cylinder (7), and cover board (6) is as on the outside of wire casing (8)
Boundary.
2. safe rod drive mechanism transmission device according to claim 1, which is characterized in that the cover board (6) is in arc
Shape plate, the left and right both ends of cover board (6) are welded to connect with connecting cylinder (7), and cover board (6) front and rear sides is and coil windings
(12) it is fixedly connected on the outside of.
3. safe rod drive mechanism transmission device according to claim 1, which is characterized in that the cover board (6) is in circle
Tubular, the both ends of cover board (6) are welded to connect with connecting cylinder (7).
4. safe rod drive mechanism transmission device according to claim 1, which is characterized in that the inner cylinder (3)
The a plurality of second axial cord (5) is additionally provided on outside, described second axial cord (5) annular is distributed on inner cylinder (3), institute
It states and is additionally provided with a plurality of first axis cord (4) on the outside of outer barrel (2), first axis cord (4) annular is distributed in
On outer barrel (2)；
Axial direction of the extending direction of first axis cord (4) along outer barrel (2), the extension side of the second axial cord (5)
Also there is gap to the axial direction along inner cylinder (3), and between the second axial cord (5) and first axis cord (4), the
Gap between two axial cords (5) and first axis cord (4) is for avoiding inner cylinder (3) and outer barrel (2) that phase is occurring
To being touched in rotation process；
The material of the inner cylinder (3) and the second axial cord (5) is magnetic conductive material；
The outer barrel (2) is connected in series by three sections of cylinder sections, and the cylinder section of composition outer barrel (2) includes the end barrel section in both ends
(21) and in intermediate middle part cylinder section (22), the material of the end barrel section (21) is magnetic conductive material, the middle part cylinder section
(22) material is non-magnetic shape material；
The electromagnetic clutch (1) further includes coil rack, and the coil rack includes tubular inner frame (14) and dermoskeleton
Frame (13) further includes end plate (11), and the inner frame (14), outer skeleton (13), end plate (11) surround annular space, the coil
Winding (12) is installed in the annular space, and the material of the outer skeleton (13) and end plate (11) is magnetic conductive material, institute
State that inner frame (14) overall material is non-permeable material or local material is non-permeable material；
It is the part of non-permeable material is tubular every magnetic cylinder when the local material of inner frame (14) is non-permeable material
Section, and it is described between the both ends that magnetic cylinder section is connected on inner frame (14)；
The inner frame (14) be independently of connecting cylinder (7) absolute construction or be connecting cylinder (7) part.
5. safe rod drive mechanism transmission device according to claim 4, which is characterized in that the inner frame (14) is whole
Body is non-permeable material, the projection of inner frame (14) left end towards left side end plate (11) fall in left side end plate (11) edge with
Interior, the projection of inner frame (14) right end towards right side end plate (11) is fallen within end plate (11) edge of right side.
6. safe rod drive mechanism transmission device according to claim 4, which is characterized in that the annular space is close
Closed chamber body.
7. safe rod drive mechanism transmission device according to claim 4, which is characterized in that the first axis cord
(4) it is respectively positioned on end barrel section (21), and all has first axis cord (4) on two end barrel sections (21), along outer barrel
(2) circumferential direction, the first axis cord (4) on both ends cylinder section (21) is in face relationship.
8. safe rod drive mechanism transmission device according to claim 4, which is characterized in that the first axis cord
(4) the maximal clearance width in the gap between the second axial cord (5) is 3mm.
9. safe rod drive mechanism transmission device according to claim 1, which is characterized in that the outer barrel (2), interior
Both cylinders (3) are coaxial.
10. safe rod drive mechanism transmission device according to claim 9, which is characterized in that further include outside being set to
Rolling bearing between cylinder (2) and inner cylinder (3), the rolling bearing are used to limit the phase of outer barrel (2) with inner cylinder (3)
To position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920396965.5U CN209526649U (en) | 2019-03-26 | 2019-03-26 | Safe rod drive mechanism transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920396965.5U CN209526649U (en) | 2019-03-26 | 2019-03-26 | Safe rod drive mechanism transmission device |
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| Publication Number | Publication Date |
|---|---|
| CN209526649U true CN209526649U (en) | 2019-10-22 |
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ID=68232510
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|---|---|---|---|
| CN201920396965.5U Active CN209526649U (en) | 2019-03-26 | 2019-03-26 | Safe rod drive mechanism transmission device |
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| Country | Link |
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| CN (1) | CN209526649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114141395A (en) * | 2021-11-30 | 2022-03-04 | 上海第一机床厂有限公司 | Sealed shell device and control rod drive mechanism |
-
2019
- 2019-03-26 CN CN201920396965.5U patent/CN209526649U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114141395A (en) * | 2021-11-30 | 2022-03-04 | 上海第一机床厂有限公司 | Sealed shell device and control rod drive mechanism |
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| CB03 | Change of inventor or designer information |
Inventor after: Jin Fenglei Inventor after: Xia Fan Inventor after: Zheng Fulei Inventor after: Chen Shuming Inventor after: Wang Mingzheng Inventor after: Yang Kongli Inventor after: Zhang Li Inventor after: Huang Chaohui Inventor after: Chen Hui Inventor before: Zhang Li Inventor before: Huang Chaohui Inventor before: Chen Hui |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210106 Address after: 100000 Beifang, Xinzhen, Fangshan District, Beijing Patentee after: China Institute of Atomic of Energy Address before: 610000 Sichuan Chengdu Dujiangyan Sichuan Dujiangyan Economic Development Zone No. 5 Longxiang Road Patentee before: Sichuan Huadu Nuclear Equipment Manufacture Co.,Ltd. |