CN209625809U - Handle component for safe rod drive mechanism - Google Patents
Handle component for safe rod drive mechanism Download PDFInfo
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- CN209625809U CN209625809U CN201920391135.3U CN201920391135U CN209625809U CN 209625809 U CN209625809 U CN 209625809U CN 201920391135 U CN201920391135 U CN 201920391135U CN 209625809 U CN209625809 U CN 209625809U
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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 utility model discloses a kind of handle components for safe rod drive mechanism, including main shaft and are connected to multiple claws of main shaft bottom, the lower end of multiple claws surrounds the clamping gap for entrapment stick；The main shaft is hollow shaft, further includes the central axis being arranged in main shaft, and the central axis can be rotated relative to main shaft around the axis of itself；It further include the cam for being connected to central axis bottom；At least one claw is articulated on main shaft by articulated shaft；When cam is with central axis rotation, cam changes the size in the clamping gap by applying pressure to the inside of at least one claw.This programme can not only realize that safety rod forms detachable connection method in safe rod drive mechanism, while this programme also has the characteristics that structure is simple, safety rod connection reliability is high.
Description
Technical field
The utility model relates to technical field of nuclear power, more particularly to a kind of grip for safe rod drive mechanism
Part.
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.
Safe rod drive mechanism can be related to the problem of reloading of safety rod in use, such as in the prior art, generally
Removable head is installed in control rod drive mechanism, the removable head is detachably connected pass for connecting control rod and being formed
System, removable head constrain control rod generally by the mode of two valve elastic piece swellings, form swollen head, In between two valve elastic pieces
When completing the dismounting of control rod, corresponding operating is completed by way of above mentioning and pushing swollen head.
For the optimization design of removable head, those skilled in the art have done many explorations, such as application number in the prior art
Shown in the technical solution that provides of patent for 201410421200.4.It designs a kind of reliable performance, be suitable for the cold fast neutron of sodium
The handle component of reactor sealing environment is those skilled in the art's technical problem urgently to be resolved.
Utility model content
A kind of reliable performance is designed, suitable for the handgrip of the cold fast neutron reactor sealed environment of sodium for set forth above
Component, is those skilled in the art's technical problem urgently to be resolved, and the utility model provides a kind of for safety rod driving
The handle component of mechanism, this handle component can not only realize safety rod as the safety rod connector in safe rod drive mechanism
Form detachable connection method in safe rod drive mechanism, while this programme also has that structure is simple, safety rod connection is reliable
The high feature of property.
Handle component provided by the utility model for safe rod drive mechanism solves to ask by following technical essential
Topic: for the handle component of safe rod drive mechanism, including main shaft and being connected to multiple claws of main shaft bottom, multiple claws
Lower end surrounds the clamping gap for entrapment stick；
The main shaft is hollow shaft, further includes the central axis being arranged in main shaft, the central axis can relative to main shaft around
The axis rotation of itself；
It further include the cam for being connected to central axis bottom；
At least one claw is articulated on main shaft by articulated shaft；
When cam is with central axis rotation, cam changes the folder by applying pressure to the inside of at least one claw
Hold the size in gap.
In the prior art, it reloads for safety rod, generally are as follows: after main shaft and safety rod drop to bottom, main shaft must be removed
With the connection of safety rod, and in the fit form of existing main shaft and safety rod, generally by manually applying to main shaft along perpendicular
Histogram to thrust or pulling force, complete main shaft and safety rod separation or connection.And as used for the cold fast neutron reactor of sodium
Required sealed environment for the benefit of obtains closed environment or is conducive to safe operation, should not pass through the above-mentioned shape pushed or pulled on
The connection of formula completion main shaft and safety rod.And application No. is the technical solutions that 201410421200.4 patent provides also to use such as
Upper type: when adjusting seized condition of the handgrip to control rod, also there is the tapered surface relative to handgrip in drive rod axis
Line side moves upwards.And since hollow shaft can be related to above mentioning in safety rod control mechanism normal course of operation or underthrust is dynamic
Make, safety rod is moved synchronously with hollow shaft at this time, therefore to guarantee constraint of the tapered surface to handgrip seized condition, it is such as set as being driven
Bar, deceleration mechanism etc. are servo-actuated with hollow shaft, then there is power needed for central axis drives and drop with safety rod greatly or under accident condition
The big problem of moiety by weight.
In the present solution, the cam is installed on the central axis, during central axis rotation, the cam passes through
Apply pressure to the inside of claw, changes the size in the clamping gap, handle component release safety during being reloaded with realization
Stick and crawl safety rod.As cam be one when, constrained between claw at least one claw by the edge action of cam
The opening angle in gap, the elastic component being such as equipped between claw and main shaft, that is, may make the rotation by cam, so that
Gap first becomes larger to become smaller again, by changing the size in the gap, reaches and changes handle component to safety rod clamp position, reach
The purpose reloaded.Compared to the existing implementation by pushing away, drawing main shaft, since main shaft is in use only in vertical side
To move in a straight line without rotate, while the position of claw in the height direction be can it is changed, therefore use this programme, In
When specific utilization, stroke pipe can be set in the upper end of central axis, be existed for adapting to central axis with main shaft with the length of up stroke pipe
In when the displacement of vertical direction, and stroke pipe and central axis are keyed such as the upper end of central axis is in spline shaft-like, i.e. motion of main shaft
The upper end of mandrel remains the key connection relationship that torque can be transmitted with stroke pipe, when cam needs to rotate, driving trip
Pipe rotation, and stroke pipe may be configured as fixing in axial location of the respective drive mechanism on safe rod drive mechanism, this
Sample, stroke pipe and the respective drive mechanism rotated for driving trip pipe will not be to peaces in normal use for safe rod drive mechanism
Full stick above mention and underthrust generates any influence, therefore use this programme, not only can avoid facing traditional artificial operation axis and realize
The problem of release and crawl to safety rod are not suitable for confined space, while central axis rotation increases realization driving mechanism sealing
The difficulty added is small, while the drive form of claw may make for not influencing above mentioning for safety rod for the component of claw driving service
And underthrust, therefore this handle component not only realizes that crawl and release to safety rod are easily achieved, while structure is simple, to safety rod
Movement do not have an impact, the application occasion especially suitable for the cold fast neutron reactor of for example sodium.
Further technical solution are as follows:
The cam is two, and two cams are ellipticity cam, and two cams are mounted in center shaft axis not
Same position, two cams are and central axis；
Angle between the respective long axis of two cams is 90 °；
The claw be two, and two claws relative to main shaft axis axisymmetricly；
Articulated shaft on each claw is between the upper and lower end that the link position on claw is located at claw；
The upside that one of cam is located at articulated shaft is used to interact with the claw inner wall on the upside of articulated shaft, another
The downside that cam is located at articulated shaft is used to interact with the claw inner wall on the downside of articulated shaft.As those skilled in the art, with
The edge that upper ellipticity cam as completes the top view for the cam installed on safe rod drive mechanism or this handle component is in
Same size can be used in ellipticity, two above cam, also can be used different sizes, and the program is in specific use, for claw,
The edge of two cams applies constraint to two claws respectively, and the articulated shaft on each claw is the center of rotation of the claw, in
Gap is clamped when central axis, between two claws and completes opening and closing movement: when cam is with central axis rotation, for each claw, such as
The long axis side of cam on the upside of articulated shaft is pressed respectively on each claw, the short axle edge of the cam on the downside of articulated shaft with respectively with
Different claw phase separations, at this point, between the lower end of claw there is minimum clearance to be used for entrapment stick；Cam on the upside of articulated shaft
Short axle edge press when on claw, the long axis edge of the cam on the downside of articulated shaft and claw phase separation, at this point, under claw
It is used to discharge safety rod with maximal clearance between end or the upper end of safety rod is embedded between claw as entrapment stick
It is ready, and during central axis rotation, the width of the above clearance is gradual change.Using this programme, by above
Two cams constrain two claws simultaneously, so that claw has specific relative motion state, and the above opposite fortune between each other
It moves as periodic relative motion, using this programme, each claw and main shaft are hinged by articulated shaft, do not need as previously discussed
The scheme including elastic component；Use this programme simultaneously, due to cam compared to the prior art in elastomer or presented above
Elastomer be rigid body, changes that gap is clamped between claw only relies upon the rotation of cam, therefore using this programme, can also make
Obtaining this handgrip transmission chain has the characteristics that more reliable, the corresponding safe rod drive mechanism of performance has structure more simple.
It is respectively provided with flat segments on the inside of two claws, the flat segments are for realizing the clamping gap location on the claw
When the state of entrapment stick, the side of the cam and flat segments cooperate, and cam can along flat segments main shaft axis
The sliding of line direction.This programme is used, during the time it is carried out, main shaft drops to the upper end of safety rod and the lower end of central axis before lowest order
Contact, in this way, safety rod upper end insertion claw between clamp gap and in place after, safety rod to central axis generate jacking make
With, in this way, by detection device inspection center axis relative to main shaft the position on main-shaft axis, judge whether to have occurred described
Jacking, achieve the purpose that determine whether to occur false entrapment stick: when being clamped with safety rod, central axis is jacked, and is not clamped
It include the flat segments by being set as, central axis glides along flat segments and generates compared to the height jacked when having safety rod
It is poor to spend.
As noted previously, as two above cam is respectively used to the upper side and lower side of articulated shaft on two claws of constraint, therefore
Maximum grip gap between claw be it is determining, to avoid occurring when reloading because lead to the unconfined situation of central axis
Central axis drops to the gap between cam disengaging claw, setting are as follows: be provided on two claws for constraining central axis lower end
Relative to the shelves edge of main shaft position on main-shaft axis, two shelves are in face relationship along the axis relative to main shaft, in the folder
When holding state of the gap in release safety rod, the shelves are along for providing support for the lower end of center axis.Continued to use with performing
In the lower end phase separation with central axis, in the specific implementation, no matter how claw rotates under cam effect around articulated shaft, center
The downward projection in axis lower end falls in shelves along above always.The i.e. described shelves lateral center shaft axis side protrusion along as claw
Boss.
The part that the clamping dwell boundaries are used to form on the claw includes the hook-shaped portion for being in hook；
In the grasping part that the hook-shaped portion surrounds, the gap width of grasping part upper/lower terminal, which is respectively less than, accommodates sky
Between middle section gap width.Using this programme, i.e., there is the scheme of end bulb, i.e., the described hook-shaped portion for safety rod upper end
Be used for and the matched grasping part of the bulb surrounded, to realize claw to the more structurally sound constraint of safety rod.
The lower end in the hook-shaped portion is inclined-plane, and the inclined-plane is bottom towards the inclined inclined-plane of main-shaft axis.Using we
Case such as will regard the shaft shoulder on safety rod as on the downside of the bulb of safety rod, the inclined-plane in hook-shaped portion with it is described swollen
When big subordinate's side contacts, claw can be used for the chucking power of safety rod safety rod is driven to set tune in the enterprising line position of the axis of central axis
It is whole, that is, allow this handle component when grabbing safety rod with bigger the relative position error, so that this handle component can
Reliable constraint safety rod.Meanwhile when this handle component discharges safety rod, if safety rod does not bottom out at this time, in claw
During opening, allow safety rod slide downward certain distance to alleviate or avoid collision.
The utility model has the following beneficial effects:
In the present solution, the cam is installed on the central axis, during central axis rotation, the cam passes through
Apply pressure to the inside of claw, changes the size in the clamping gap, handle component release safety during being reloaded with realization
Stick and crawl safety rod.As cam be one when, constrained between claw at least one claw by the edge action of cam
The opening angle in gap, the elastic component being such as equipped between claw and main shaft, that is, may make the rotation by cam, so that
Gap first becomes larger to become smaller again, by changing the size in the gap, reaches and changes handle component to safety rod clamp position, reach
The purpose reloaded.Compared to the existing implementation by pushing away, drawing main shaft, since main shaft is in use only in vertical side
To move in a straight line without rotate, while the position of claw in the height direction be can it is changed, therefore use this programme, In
When specific utilization, stroke pipe can be set in the upper end of central axis, be existed for adapting to central axis with main shaft with the length of up stroke pipe
In when the displacement of vertical direction, and stroke pipe and central axis are keyed such as the upper end of central axis is in spline shaft-like, i.e. motion of main shaft
The upper end of mandrel remains the key connection relationship that torque can be transmitted with stroke pipe, when cam needs to rotate, driving trip
Pipe rotation, and stroke pipe may be configured as fixing in axial location of the respective drive mechanism on safe rod drive mechanism, this
Sample, stroke pipe and the respective drive mechanism rotated for driving trip pipe will not be to peaces in normal use for safe rod drive mechanism
Full stick above mention and underthrust generates any influence, therefore use this programme, not only can avoid facing traditional artificial operation axis and realize
The problem of release and crawl to safety rod are not suitable for confined space, while central axis rotation increases realization driving mechanism sealing
The difficulty added is small, while the drive form of claw may make for not influencing above mentioning for safety rod for the component of claw driving service
And underthrust, therefore this handle component not only realizes that crawl and release to safety rod are easily achieved, while structure is simple, to safety rod
Movement do not have an impact, the application occasion especially suitable for the cold fast neutron reactor of for example sodium.
Detailed description of the invention
Fig. 1 is the handle component one described in the utility model for safe rod drive mechanism specifically with embodiment
Partial schematic diagram, which is cross-sectional view, for reflecting the structure composition and matching relationship of handle component；
Fig. 2 is the cross-sectional view shown in Fig. 1 along the direction A-A.
Appended drawing reference in figure is successively are as follows: 1, claw, 2, central axis, and 3, main shaft, 4, cam, 5, flat segments, 6, shelves edge, 7,
Articulated shaft, 8, safety rod.
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 depicted in figs. 1 and 2, the handle component for safe rod drive mechanism, including main shaft 3 and it is connected to 3 bottom of main shaft
Multiple claws 1 in portion, the lower end of multiple claws 1 surround the clamping gap for entrapment stick 8；
The main shaft 3 is hollow shaft, further includes the central axis 2 being arranged in main shaft 3, the central axis 2 can be relative to master
Axis 3 is rotated around the axis of itself；
It further include the cam 4 for being connected to 2 bottom of central axis；
At least one claw 1 is articulated on main shaft 3 by articulated shaft 7；
When cam 4 is rotated with central axis 2, cam 4 changes institute by applying pressure to the inside of at least one claw 1
State the size in clamping gap.
In the prior art, it reloads for safety rod 8, generally are as follows: after main shaft 3 and safety rod 8 drop to bottom, master must be removed
The connection of axis 3 and safety rod 8, and in the fit form of existing main shaft 3 and safety rod 8, generally by manually to the application of main shaft 3
Thrust or pulling force along vertical direction complete the separation or connection of main shaft 3 and safety rod 8.And it is as anti-in being directed to the cold fast neutron of sodium
It answers heap with required sealed environment, for the benefit of obtains closed environment or be conducive to safe operation, should not be pushed away by above-mentioned
Or the form drawn completes the connection of main shaft 3 and safety rod 8.And application No. is the technical sides that 201410421200.4 patent provides
Case is also used such as upper type: when adjusting seized condition of the handgrip to control rod, also there is the tapered surface relative to handgrip
It is moved on drive rod axis direction.And since hollow shaft can be related in 8 control mechanism normal course of operation of safety rod
It mentioning or underthrust acts, safety rod 8 is moved synchronously with hollow shaft at this time, therefore to guarantee constraint of the tapered surface to handgrip seized condition,
It is servo-actuated to be such as set as drive rod, deceleration mechanism and hollow shaft, then there is central axis 2 and drive required power greatly or under accident condition
With the big problem of the moiety by weight of the tenesmus of safety rod 8.
In the present solution, the cam 4 is installed on the central axis 2, and during central axis 2 rotates, the cam 4
By applying pressure to the inside of claw 1, change the size in the clamping gap, handle component discharges during reloading with realization
Safety rod 8 and crawl safety rod 8.As cam 4 be one when, constrained at least one claw 1 by the edge action of cam 4
The opening angle in gap between claw 1, the elastic component being such as equipped between claw 1 and main shaft 3, that is, may make and pass through cam
4 rotation becomes smaller again so that gap first becomes larger, and by changing the size in the gap, reaches and changes handle component to safety rod 8
Clamp position achievees the purpose that reload.Compared to the existing implementation by pushing away, drawing main shaft 3, since main shaft 3 is using
It only moves in a straight line in the process in vertical direction without rotating, while the position of claw 1 in the height direction is to change
, therefore this programme is used, in specific use, stroke pipe can be set in the upper end of central axis 2, be used for the length of up stroke pipe
Central axis 2 is adapted to main shaft 3 in the displacement of vertical direction, and stroke pipe and central axis 2 are keyed, as the upper end of central axis 2 is in
The upper end of central axis 2 remains the key connection relationship that torque can be transmitted with stroke pipe when spline shaft-like, i.e. main shaft 3 move,
When cam 4 needs to rotate, driving trip pipe rotation, and stroke pipe in respective drive mechanism on safe rod drive mechanism
Axial location may be configured as fixing, in this way, safe rod drive mechanism stroke pipe and is used for driving trip pipe in normal use
The respective drive mechanism of rotation will not to safety rod 8 above mention and underthrust generate any influence, therefore use this programme, can not only keep away
Exempt to face the problem of traditional artificial realization of operation axis 3 is not suitable for confined space to the release and crawl of safety rod 8, while in
It is small that the rotation of mandrel 2 seals increased difficulty to realization driving mechanism, while the drive form of claw 1 may make for being claw 1
Driving service component do not influence safety rod 8 above mention and underthrust, therefore this handle component not only realize the crawl to safety rod 8 and
Release is easily achieved, while structure is simple, is not had an impact to the movement of safety rod 8, especially suitable for the cold fast neutron of for example sodium
The application occasion of reactor.
Embodiment 2:
As depicted in figs. 1 and 2, the present embodiment is further qualified on the basis of embodiment 1: the cam 4 is two,
And two cams 4 are ellipticity cam 4, two cams 4 are mounted on the different location on 2 axis of central axis, and two cams 4 are in
Mandrel 2 is coaxial；
Angle between the respective long axis of two cam 4 is 90 °；
The claw 1 be two, and two claws 1 relative to main shaft 3 axis axisymmetricly；
Articulated shaft 7 on each claw 1 is between the upper and lower end that the link position on claw 1 is located at claw 1；
The upside that one of cam 4 is located at articulated shaft 7 is used to interact with 1 inner wall of claw of 7 upside of articulated shaft, separately
The downside that one cam 4 is located at articulated shaft 7 is used to interact with 1 inner wall of claw of 7 downside of articulated shaft.As art technology
Personnel, the above ellipticity cam 4 as complete the top view for the cam 4 installed on safe rod drive mechanism or this handle component
Edge be in ellipticity, same size can be used in two above cam 4, different sizes also can be used, the program in specific use,
For claw 1, the edge of two cams 4 applies constraint to two claws 1 respectively, and the articulated shaft 7 on each claw 1 is the claw 1
Center of rotation, when central axis 2 rotates, opening and closing movement is completed in clamping gap between two claws 1: in cam 4 with central axis 2
When rotation, pressed on each claw 1 respectively for each claw 1, such as the long axis side of the cam 4 of 7 upside of articulated shaft, under articulated shaft 7
The short axle edge of the cam 4 of side from respectively with different 1 phase separations of claw, at this point, between the lower end of claw 1 have minimum clearance use
In entrapment stick 8；The short axle edge of the cam 4 of 7 upside of articulated shaft presses when on claw 1, the cam 4 of 7 downside of articulated shaft
Long axis edge and 1 phase separation of claw, at this point, having maximal clearance for discharging safety rod 8 or make between the lower end of claw 1
It is above to be ready for entrapment stick 8 between the upper end insertion claw 1 of safety rod 8, and in 2 rotation process of central axis
The width of clearance is gradual change.Using this programme, two claws 1 are constrained by two above cam 4 simultaneously, so that claw
1 has specific relative motion state between each other, and the above relative motion is periodic relative motion, using this programme, respectively
Claw 1 and main shaft 3 are hinged by articulated shaft 7, do not need scheme as described above including elastic component；Simultaneously using this
Scheme, due to cam 4 compared to the prior art in elastomer or elastomer set forth above be rigid body, press from both sides between claw 1
The change for holding gap only relies upon the rotation of cam 4, therefore uses this programme, this handgrip transmission chain also may make to have performance more
Reliably, accordingly safe rod drive mechanism has the characteristics that structure is more simple.
The inside of two claws 1 is respectively provided with flat segments 5, the flat segments 5 for realizing: between the clamping on the claw 1
When gap is in the state of entrapment stick 8, the side of the cam 4 and flat segments 5 cooperate, and cam 4 can exist along flat segments 5
The axis direction of main shaft 3 slides.Use this programme, during the time it is carried out, main shaft 3 drop to before lowest order the upper end of safety rod 8 with
The lower end in contact of central axis 2, in this way, safety rod 8 upper end insertion claw 1 between clamp gap and in place after, safety rod 8 is right
Central axis 2 generate jacking effect, in this way, by detection device inspection center axis 2 relative to main shaft 3 position on 3 axis of main shaft,
Judge whether the jacking for having occurred described, achievees the purpose that determine whether to occur false entrapment stick 8: being clamped with safety rod 8
When, central axis 2 is jacked, and includes the flat segments 5 by being set as, central axis 2 is along straight when not being clamped with safety rod 8
Section 5, which glides, to be generated compared to the difference in height jacked.
As noted previously, as two above cam 4 is respectively used to the upper side and lower side of articulated shaft 7 on two claws 1 of constraint,
Therefore the maximum grip gap between claw 1 be it is determining, to avoid occurring when reloading because to the unconfined situation of central axis 2
The tenesmus of central axis 2 to cam 4 is caused to be detached from the gap between claw 1, setting are as follows: to be provided in for constraining on two claws 1
2 lower end of mandrel relative to the position on 3 axis of main shaft of main shaft 3 shelves along 6, two shelves along 6 relative to main shaft 3 axis be in face
Relationship, when the clamping gap is in the state of release safety rod 8, the shelves are along 6 for providing branch for the lower end of center axis 2
Support.I.e. to perform along 6 for lower end phase separation with central axis 2, in the specific implementation, no matter claw 1 under the effect of cam 4 such as
What is rotated around articulated shaft 7, and the downward projection in 2 lower end of central axis falls in shelves along 6 always.The i.e. described shelves are claw 1 along 6
The boss of interior 2 axis side of lateral central axis protrusion.
The part that the clamping dwell boundaries are used to form on the claw 1 includes the hook-shaped portion for being in hook；
In the grasping part that the hook-shaped portion surrounds, the gap width of grasping part upper/lower terminal, which is respectively less than, accommodates sky
Between middle section gap width.Using this programme, i.e., there is the scheme of end bulb for 8 upper end of safety rod, i.e., it is described hook-shaped
Portion surround for the matched grasping part of the bulb, to realize claw 1 to the more structurally sound constraint of safety rod 8.
The lower end in the hook-shaped portion is inclined-plane, and the inclined-plane is bottom towards the inclined inclined-plane of 3 axis of main shaft.Using we
Case such as will regard the shaft shoulder on safety rod 8 as on the downside of the bulb of safety rod 8, the inclined-plane in hook-shaped portion with it is described
When bulb contacts-side-down, claw 1 can be used for the chucking power of safety rod 8 safety rod 8 is driven to carry out on the axis of central axis 2
Position adjustment, that is, allow this handle component when grabbing safety rod 8 with bigger the relative position error, so that this grip
Part can reliably constrain safety rod 8.Meanwhile when this handle component discharges safety rod 8, if safety rod 8 does not bottom out at this time,
During claw 1 opens, allow 8 slide downward certain distance of safety rod to alleviate or avoid collision.
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 (6)
1. be used for the handle component of safe rod drive mechanism, including main shaft (3) and it is connected to multiple claws of main shaft (3) bottom
(1), the lower end of multiple claws (1) surrounds the clamping gap for entrapment stick (8)；
The main shaft (3) is hollow shaft, further includes the central axis (2) being arranged in main shaft (3), which is characterized in that the center
Axis (2) can be rotated relative to main shaft (3) around the axis of itself；
It further include the cam (4) for being connected to central axis (2) bottom；
At least one claw (1) is articulated on main shaft (3) by articulated shaft (7)；
When cam (4) is rotated with central axis (2), cam (4) is changed by applying pressure to the inside of at least one claw (1)
Become the size in the clamping gap.
2. the handle component according to claim 1 for safe rod drive mechanism, which is characterized in that the cam (4)
It is two, and two cams (4) are ellipticity cam, two cams (4) are mounted on the different location on central axis (2) axis,
Two cams (4) are coaxial with central axis (2)；
Angle between two cams (4) respective long axis is 90 °；
The claw (1) be two, and two claws (1) relative to main shaft (3) axis axisymmetricly；
Articulated shaft (7) on each claw (1) is between the upper and lower end that the link position on claw (1) is located at claw (1)；
The upside that one of cam (4) is located at articulated shaft (7) is used to interact with the claw inner wall on the upside of articulated shaft (7),
The downside that another cam (4) is located at articulated shaft (7) is used to interact with the claw inner wall on the downside of articulated shaft (7).
3. the handle component according to claim 2 for safe rod drive mechanism, which is characterized in that two claws (1)
Inside is respectively provided with flat segments (5), the flat segments (5) for realizing: clamping gap on the claw (1) is in clamping peace
When the state of full stick (8), the side and flat segments (5) of the cam (4) cooperate, and cam (4) can be along flat segments (5) in master
The axis direction of axis (3) slides.
4. the handle component according to claim 2 for safe rod drive mechanism, which is characterized in that on two claws (1)
The shelves for constraining central axis (2) lower end relative to main shaft (3) position on main shaft (3) axis are provided with along (6), two shelves
Edge (6) is in face relationship relative to the axis of main shaft (3), when the clamping gap is in the state of release safety rod (8), institute
Shelves are stated to be used to provide support for the lower end of center axis (2) along (6).
5. the handle component as claimed in any of claims 1 to 4 for safe rod drive mechanism, feature exist
In the part for being used to form the clamping dwell boundaries on the claw (1) includes the hook-shaped portion for being in hook；
In the grasping part that the hook-shaped portion surrounds, the gap width of grasping part upper/lower terminal, which is respectively less than, to accommodate in space
The gap width of section.
6. the handle component according to claim 5 for safe rod drive mechanism, which is characterized in that the hook-shaped portion
Lower end is inclined-plane, and the inclined-plane is bottom towards main shaft (3) the inclined inclined-plane of axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920391135.3U CN209625809U (en) | 2019-03-26 | 2019-03-26 | Handle component for safe rod drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920391135.3U CN209625809U (en) | 2019-03-26 | 2019-03-26 | Handle component for safe rod drive mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN209625809U true CN209625809U (en) | 2019-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920391135.3U Active CN209625809U (en) | 2019-03-26 | 2019-03-26 | Handle component for safe rod drive mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN209625809U (en) |
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2019
- 2019-03-26 CN CN201920391135.3U patent/CN209625809U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zheng Fulei Inventor after: Xia Fan Inventor after: Jin Fenglei Inventor after: Chen Shuming Inventor after: Wang Mingzheng Inventor after: Yang Kongli Inventor after: Tang Jumei Inventor after: Chen Hui Inventor after: Chen Fengzu Inventor before: Tang Jumei Inventor before: Chen Hui Inventor before: Chen Fengzu |
|
| TR01 | Transfer of patent right | ||
| 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. |