CN117352197A - External driving device for T-shaped control rod - Google Patents

External driving device for T-shaped control rod Download PDF

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Publication number
CN117352197A
CN117352197A CN202311199257.XA CN202311199257A CN117352197A CN 117352197 A CN117352197 A CN 117352197A CN 202311199257 A CN202311199257 A CN 202311199257A CN 117352197 A CN117352197 A CN 117352197A
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China
Prior art keywords
fixedly connected
control rod
rod
outer side
disc
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Granted
Application number
CN202311199257.XA
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Chinese (zh)
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CN117352197B (en
Inventor
张振鲁
汪景新
许杰
雷伟俊
孙惠敏
周勤
肖三平
孟剑
王威
王英杰
刘平
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Huaneng Nuclear Energy Technology Research Institute Co Ltd
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Huaneng Nuclear Energy Technology Research Institute Co Ltd
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Priority to CN202311199257.XA priority Critical patent/CN117352197B/en
Publication of CN117352197A publication Critical patent/CN117352197A/en
Application granted granted Critical
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    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21CNUCLEAR REACTORS
    • G21C7/00Control of nuclear reaction
    • G21C7/06Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
    • G21C7/08Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
    • G21C7/12Means for moving control elements to desired position
    • G21C7/14Mechanical drive arrangements
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Transmission Devices (AREA)

Abstract

The invention relates to the technical field of safety protection and discloses an external driving device of a T-shaped control rod, which comprises an installation mechanism, a driving mechanism and a driving mechanism, wherein the installation mechanism comprises a bottom plate, a bottom column fixedly connected to the top end of the bottom plate, and a cylinder fixedly connected to the top end of the bottom column, a side cylinder is fixedly connected to the outer side of the cylinder, an installation block is fixedly connected to the outer side of the cylinder, a display part is arranged in the side cylinder, a speed reducing part is arranged in the side cylinder, and a measuring part is adaptively arranged at one end of the side cylinder; when equipment takes place the power supply trouble, through quick reverse carousel, drive the briquetting and promote the atress board, realize stopping board extrusion chain to make the control rod stop the gliding, and then effectively protect the control rod, and can realize the whereabouts of control rod slow indirection formula, in order to guarantee that the control rod temperature steadily falls, when having avoided later maintenance, cause the condition emergence that the control rod dropped suddenly, the practicality of again has improved equipment.

Description

External driving device for T-shaped control rod
Technical Field
The invention relates to the technical field of safety protection, in particular to an external driving device for a T-shaped control rod.
Background
High temperature gas cooled reactors are typically provided with two independent sets of reactivity control systems. The primary reactivity control system typically employs a control rod shutdown system, and the standby reactivity control system typically employs an absorption ball shutdown system. According to the structural form, the high-temperature gas cooled reactor control rod driving mechanism generally adopts the structural forms of a steel wire rope-wheel hub, a loop chain-sprocket, a lead screw-nut, a gear-rack and the like.
The primary loop of the high-temperature gas cooled reactor has high temperature, strong helium permeability and high irradiation dose, and has great influence on the operation of a control rod driving mechanism, so that the driving mechanism is frequently failed. The driving mechanism needs to be frequently opened with a loop pressure boundary for overhauling, so that the actual overhauling process is inconvenient, the whole bottom of the driving mechanism is large in occupied space, excessive space is occupied, after the driving mechanism loses power, a control rod can be caused to rapidly fall, the control rod is easy to damage, and the whole use cost of the equipment is improved.
Disclosure of Invention
The present invention has been made in view of the above-mentioned problems occurring in the prior art.
Therefore, the present invention aims to provide an external driving device for a T-shaped control rod, which aims to: the maintenance is convenient, and the control rod is protected safely.
In order to solve the technical problems, the invention provides the following technical scheme: an external driving device of a T-shaped control rod comprises,
the mounting mechanism comprises a bottom plate, a bottom column fixedly connected to the top end of the bottom plate, and a cylinder fixedly connected to the top end of the bottom column, wherein a side cylinder is fixedly connected to the outer side of the cylinder, a mounting block is fixedly connected to the outer side of the cylinder, a display part is arranged in the side cylinder, a speed reducing part is arranged in the side cylinder, and a measuring part is adaptively mounted at one end of the side cylinder;
the power mechanism comprises a motor, an output rod and a disc, wherein the motor is installed on the outer side of the installation block in an adapting mode, the output rod is fixedly connected to the output end of the motor, the disc is fixedly connected to one end of the output rod, a groove is formed in the outer side of the disc, a triggering part is arranged at one end of the disc, a storage part is installed on the outer side of the disc in an adapting mode, a transmission part is arranged in the barrel, and a limiting part is arranged in the barrel.
As a preferable scheme of the external driving device of the T-shaped control rod, the external driving device of the T-shaped control rod comprises the following components: the display part comprises a transmission rod rotatably connected with one end of the side cylinder, a first large gear fixedly connected with one end of the transmission rod, and a measuring disc fixedly connected with the other end of the transmission rod.
As a preferable scheme of the external driving device of the T-shaped control rod, the external driving device of the T-shaped control rod comprises the following components: the speed reducing component comprises a mounting frame fixedly connected to the inner wall of the side cylinder, a rotating rod rotatably connected to the inner side of the mounting frame, and a second large gear fixedly connected to one end of the rotating rod, and a first small gear is fixedly connected to the other end of the rotating rod.
As a preferable scheme of the external driving device of the T-shaped control rod, the external driving device of the T-shaped control rod comprises the following components: the measuring component comprises a shielding sleeve fixedly connected to one end of the side cylinder and a measuring probe which is adaptively arranged at the top end of the shielding sleeve.
As a preferable scheme of the external driving device of the T-shaped control rod, the external driving device of the T-shaped control rod comprises the following components: the triggering part comprises a connecting sleeve fixedly connected to one end of the disc, a rotary table fixedly connected to one end of the connecting sleeve, and a fixed rod fixedly connected to one end of the rotary table, and a second pinion is fixedly connected to the outer side of the fixed rod;
the novel rotary table is characterized in that a first spring is arranged in the connecting sleeve, one end of the first spring is fixedly connected with a pushing block, and an extrusion assembly is arranged in the rotary table.
As a preferable scheme of the external driving device of the T-shaped control rod, the external driving device of the T-shaped control rod comprises the following components: the extrusion assembly comprises a sliding block, a guide rod and a pressing block, wherein the sliding block is connected to the inner side of the turntable in a sliding mode, the guide rod is fixedly connected to the outer side of the sliding block, and the pressing block is fixedly connected to one end of the guide rod;
wherein, the outside cover of guide arm is equipped with the second spring.
As a preferable scheme of the external driving device of the T-shaped control rod, the external driving device of the T-shaped control rod comprises the following components: the storage part comprises a bottom frame fixedly connected inside the cylinder body, a chain storage barrel fixedly connected to the top end of the bottom frame, and an outer sleeve fixedly connected to the top end of the bottom frame, wherein a third spring is arranged inside the outer sleeve.
As a preferable scheme of the external driving device of the T-shaped control rod, the external driving device of the T-shaped control rod comprises the following components: the transmission component comprises an iron chain arranged on the outer side of the disc, a control rod fixedly connected to one end of the iron chain, and a connecting block fixedly connected to the other end of the iron chain, wherein a limiting disc is fixedly connected to the bottom end of the connecting block;
the third spring is arranged between the limiting disc and the top end inside the outer sleeve.
As a preferable scheme of the external driving device of the T-shaped control rod, the external driving device of the T-shaped control rod comprises the following components: the limiting component comprises a protection cylinder fixedly connected inside the cylinder body, a connecting block fixedly connected to the outer side of the protection cylinder, and a rotating shaft rotatably connected to the inner side of the connecting block;
wherein, the inside of pivot is provided with torsion spring.
As a preferable scheme of the external driving device of the T-shaped control rod, the external driving device of the T-shaped control rod comprises the following components: the limiting component further comprises a stop plate fixedly connected to the outer side of the rotating shaft, a protruding block fixedly connected to the outer side of the stop plate, and a cross rod fixedly connected to the outer side of the rotating shaft, wherein a supporting rod is fixedly connected to the top end of the cross rod, and a stress plate is fixedly connected to the top end of the supporting rod.
The invention has the beneficial effects that: when equipment takes place the power supply trouble, through quick reverse carousel, drive the briquetting and promote the atress board, realize stopping board extrusion chain to make the control rod stop the gliding, and then effectively protect the control rod, and can realize the whereabouts of control rod slow indirection formula, in order to guarantee that the control rod temperature steadily falls, when having avoided later maintenance, cause the condition emergence that the control rod dropped suddenly, the practicality of again has improved equipment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic cross-sectional view of a barrel according to the present invention.
Fig. 3 is a schematic cross-sectional view of a cylinder according to the present invention.
Fig. 4 is a schematic diagram of the power mechanism of the present invention.
Fig. 5 is a schematic view of the internal structure of the present invention.
Fig. 6 is a schematic view of a partial cross-sectional structure of the present invention.
Fig. 7 is a schematic view of the overall structure of the triggering device of the present invention.
Fig. 8 is a schematic cross-sectional view of a disk according to the present invention.
Fig. 9 is a schematic structural view of a limiting member of the present invention.
Fig. 10 is a schematic view of the structure of the reduction member of the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present invention in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Example 1
Referring to fig. 1 to 9, for a first embodiment of the present invention, there is provided an external driving device for a T-shaped control rod, the device comprising,
the mounting mechanism 100 comprises a bottom plate 101, a bottom column 102 fixedly connected to the top end of the bottom plate 101, and a cylinder body 103 fixedly connected to the top end of the bottom column 102, wherein a side cylinder 104 is fixedly connected to the outer side of the cylinder body 103, a mounting block 105 is fixedly connected to the outer side of the cylinder body 103, a display part 106 is arranged in the side cylinder 104, a speed reducing part 107 is arranged in the side cylinder 104, and a measuring part 108 is adaptively mounted at one end of the side cylinder 104;
the power mechanism 200 comprises a motor 201, an output rod 202 and a disc 203, wherein the motor 201 is adaptively arranged on the outer side of the mounting block 105, the output rod 202 is fixedly connected to the output end of the motor 201, the disc 203 is fixedly connected to one end of the output rod 202, a groove 204 is formed in the outer side of the disc 203, a trigger part 205 is arranged at one end of the disc 203, a storage part 206 is adaptively arranged on the outer side of the disc 203, a transmission part 207 is arranged in the cylinder 103, and a limiting part 208 is arranged in the cylinder 103.
Specifically, the triggering component 205 includes a connecting sleeve 205a fixedly connected to one end of the disc 203, a rotating disc 205b fixedly connected to one end of the connecting sleeve 205a, and a fixing rod 205c fixedly connected to one end of the rotating disc 205b, wherein a second pinion 205d is fixedly connected to the outer side of the fixing rod 205 c;
wherein, the inside of adapter sleeve 205a is provided with first spring 205e, and the one end fixedly connected with ejector pad 205f of first spring 205e, the inside of carousel 205b is provided with extrusion subassembly 205g.
Further, the pressing assembly 205g includes a slider 205g-1 slidably coupled to the inner side of the turntable 205b, a guide rod 205g-2 fixedly coupled to the outer side of the slider 205g-1, and a pressing block 205g-3 fixedly coupled to one end of the guide rod 205 g-2;
wherein, the outer side of the guide rod 205g-2 is sleeved with a second spring 205g-4.
Preferably, the receiving member 206 includes a bottom frame 206a fixedly coupled to the inside of the cylinder 103, a chain bucket 206b fixedly coupled to the top end of the bottom frame 206a, and a cover 206c fixedly coupled to the top end of the bottom frame 206a, and a third spring 206d is disposed inside the cover 206 c.
Further, the limiting member 208 includes a protective cylinder 208a fixedly connected to the inside of the cylinder 103, a connection block 208b fixedly connected to the outside of the protective cylinder 208a, and a rotation shaft 208c rotatably connected to the inside of the connection block 208 b;
wherein a torsion spring is provided inside the rotation shaft 208 c.
It should be noted that, the limiting component 208 further includes a stop plate 208d fixedly connected to the outer side of the rotating shaft 208c, a bump 208e fixedly connected to the outer side of the stop plate 208d, and a cross bar 208f fixedly connected to the outer side of the rotating shaft 208c, wherein a supporting rod 208g is fixedly connected to the top end of the cross bar 208f, and a stress plate 208h is fixedly connected to the top end of the supporting rod 208 g.
Preferably, the transmission member 207 comprises an iron chain 207a arranged outside the disc 203, a control rod 207b fixedly connected to one end of the iron chain 207a, and a connecting block 207c fixedly connected to the other end of the iron chain 207a, wherein a limiting disc 207d is fixedly connected to the bottom end of the connecting block 207 c;
wherein a third spring 206d is provided between the limit disk 207d and the inner top end of the outer sleeve 206 c.
The stop plate 208d is made of a rubber material.
When the chain storage bucket 206 is used, the motor 201 is started, the disc 203 at one end of the output rod 202 can be driven to rotate through the operation of the motor 201, and as the iron chain 207a is clamped in the groove 204, when the disc 203 is driven to rotate, the iron chain 207a can be driven to move in cooperation with the design of the groove 204, so that the control rod 207b at one end of the iron chain 207a can be driven to lift until the control rod 207b is lifted to a specified position, the motor 201 is stopped, and the redundant iron chain 207a after the movement can be positioned in the chain storage bucket 206 b;
when the motor 201 fails, at this moment, under the weight of the control rod 207b, the iron chain 207a is driven to reversely move, so as to drive the disc 203 to reversely rotate, the disc 203 reversely rotates, meanwhile, the connecting sleeve 205a and the rotary disc 205b are driven to reversely rotate, as the weight of the control rod 207b is relatively high, the reverse rotation speed of the disc 203 is excessively high, the rotary disc 205b is further driven to excessively high, meanwhile, strong centrifugal force is generated, under the action of the centrifugal force, the sliding block 205g-1 and the guide rod 205g-2 are driven to slide outwards in the rotary disc 205b, the sliding block 205g-1 is driven to extrude the second spring 205g-4, at this moment, the sliding block 205g-1 drives the pressing block 205g-3 at one end of the sliding block to outwards extend, the extended pressing block 205g-3 can extrude the surface of the stress plate 208h, the stress plate 208h drives the cross rod 208f to slide downwards through the supporting rod 208g, and the rotary shaft 208c is driven to rotate as a central point at this moment, the rotating shaft 208c drives the outer stop plate 208d to rotate outwards, and the sliding block 208d stops the sliding block 208b to control the sliding block 205b, thereby preventing the sliding block from damaging the rod 207b, and preventing the falling down of the chain 207b from being damaged due to the design of the control rod 207 b.
In sum, when the equipment has a power source fault, the pressing block 205g-3 is driven to push the stress plate 208h through the rotating disc 205b which is rapidly rotated reversely, so that the stop plate 208d extrudes the iron chain 207a, the control rod 207b stops sliding downwards, the control rod 207b is effectively protected, and the use cost is saved to a certain extent.
Example 2
Referring to fig. 1 to 9, a second embodiment of the present invention is different from the first embodiment in that:
when the sliding block 205g-1 receives centrifugal force and slides out, the inside of the turntable 205b is in a hollow state, and the sliding block 205f is driven to be inserted into the cavity under the elasticity of the first spring 205e, so that the sliding block 205g-1 can be limited and fixed, the sliding block 205g-1 cannot be retracted after sliding out, the pressing block 205g-3 can be kept in an extended state all the time, and the stability of the sliding block 205g-1 after limiting and fixing is ensured by the sliding block 205f due to the fact that the inner side surface of the sliding block 205g-1 is attached to the outer side surface of the sliding block 205 f;
when the stop plate 208d extrudes and limits the iron chain 207a, the iron chain 207a still receives the gravity of the control rod 207b, so that the iron chain 207a still slowly moves, the rotary table 205b is driven to slowly rotate through the slow movement of the iron chain 207a, the pressing block 205g-3 is gradually extruded to the stress plate 208h, the stop plate 208d is continuously deformed until one group of pressing blocks 205g-3 completely slips from the surface of the stress plate 208h, at the moment, the elastic force of the torsion spring in the rotating shaft drives the rotating shaft 208c to reset, the stop plate 208d is reset, the iron chain 207a is not extruded, at the moment, the iron chain 207a is rapidly slid down by the gravity of the control rod 207b, the other group of pressing blocks 205g-3 outside the rotary table 205b is driven by the iron chain 207a again to extrude and fix the iron chain 207a, the stop plate 208d is continuously extruded, the control rod 207b can be controlled to indirectly and the power source can be controlled to be reduced, and the fault source can be ensured.
The pulling block can be fixedly connected to the outer side of one end of the pushing block 205f and extends out of the connecting sleeve 205a, and after the device is triggered, the pushing block 205f can be driven to reset by pulling the pulling block, so that the device is reset integrally, and secondary use is facilitated.
In sum, when the equipment breaks down with the power source, through the carousel 205b of quick reversal, drive briquetting 205g-3 to promote atress board 208h, realize stopping board 208d extrusion iron chain 207a to make control rod 207b stop the gliding, and then effectively protect control rod 207b, and can realize the whereabouts of control rod 207b slowly indirection, in order to guarantee that control rod 207b temperature stability falls, when having avoided later maintenance, the condition that causes control rod 207b to drop suddenly takes place, has again improved the practicality of equipment.
Example 3
Referring to fig. 1 to 10, a third embodiment of the present invention is different from the second embodiment in that: the display part 106 includes a transmission rod 106a rotatably connected to one end of the side tube 104, a first large gear 106b fixedly connected to one end of the transmission rod 106a, and a measuring disc 106c fixedly connected to the other end of the transmission rod 106 a.
Further, the speed reducing member 107 includes a mounting frame 107a fixedly connected to the inner wall of the side barrel 104, a rotating rod 107b rotatably connected to the inner side of the mounting frame 107a, and a second large gear 107c fixedly connected to one end of the rotating rod 107b, and a first small gear 107d fixedly connected to the other end of the rotating rod 107 b.
Further, the measurement component 108 includes a shield 108a fixedly attached to one end of the side barrel 104, and a measurement probe 108b adapted to be mounted to the top end of the shield 108 a.
When the control rod 207b generates a pulling force on the connecting block 207c at the other end of the iron chain 207a, the third spring 206d is always extruded under the cooperation of the connecting block 207c and the limiting plate 207d, so that the stability of the control rod 207b during falling and lifting can be ensured.
When the disc 203 rotates to lift the control rod 207b, the second pinion 205d at one end of the fixed rod 205c is driven to rotate, the second pinion 205d drives the second large gear 107c to rotate, the second large gear 107c drives the first pinion 107d to rotate through the rotating rod 107b, the first small gear 107d drives the first large gear 106b to rotate, the first large gear 106b drives the measuring disc 106c to rotate through the transmission rod 106a, and the two sets of transmission modes of driving the large gears to rotate through the small gears can reduce the rotating amplitude of the disc 203 in a two-stage manner, so that only the measuring disc 106c rotates in a small amplitude, the measuring disc 106c can be detected through the measuring probe 108b, and the moving distance of the control rod 207b is obtained.
And external motor 201 and measuring probe 108b, can take place the damage back again, directly inspect it, need open barrel 103, the maintainer of being convenient for works, the whole practicality of equipment has again been improved, this equipment is whole through having adopted the design of "T" font, under the prerequisite that has guaranteed that equipment has normal use function, still can effectually reduce the space that equipment occupied land.
In summary, the measuring disc 106c is made to rotate in a small amplitude through the two-stage reduction mode, the measuring disc 106c can be detected through the measuring probe 108b, so that the moving distance of the control rod 207b is obtained, the measuring accuracy can be ensured, the external motor 201 and the measuring probe 108b can be directly inspected and maintained after being damaged, the cylinder 103 needs to be opened, the operation of an maintainer is facilitated, and the overall practicability of the equipment is improved again.
It is important to note that the construction and arrangement of the present application as shown in a variety of different exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the invention, or those not associated with practicing the invention).
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.

Claims (10)

1. An external drive arrangement of T type control rod, its characterized in that: comprising the steps of (a) a step of,
the mounting mechanism (100) comprises a bottom plate (101), a bottom column (102) fixedly connected to the top end of the bottom plate (101), and a cylinder body (103) fixedly connected to the top end of the bottom column (102), wherein a side cylinder (104) is fixedly connected to the outer side of the cylinder body (103), a mounting block (105) is fixedly connected to the outer side of the cylinder body (103), a display part (106) is arranged in the side cylinder (104), a speed reducing part (107) is arranged in the side cylinder (104), and a measuring part (108) is adaptively mounted at one end of the side cylinder (104);
the power mechanism (200) comprises a motor (201) which is installed on the outer side of the installation block (105), an output rod (202) which is fixedly connected with the output end of the motor (201), and a disc (203) which is fixedly connected with one end of the output rod (202), wherein a groove (204) is formed in the outer side of the disc (203), a triggering part (205) is arranged at one end of the disc (203), a containing part (206) is installed on the outer side of the disc (203) in an adapting mode, a transmission part (207) is arranged in the barrel (103), and a limiting part (208) is arranged in the barrel (103).
2. The external driving device for a T-shaped control rod according to claim 1, wherein: the display component (106) comprises a transmission rod (106 a) rotatably connected to one end of the side barrel (104), a first large gear (106 b) fixedly connected to one end of the transmission rod (106 a), and a measuring disc (106 c) fixedly connected to the other end of the transmission rod (106 a).
3. The external driving device for a T-shaped control rod according to claim 2, wherein: the speed reducing component (107) comprises a mounting frame (107 a) fixedly connected to the inner wall of the side barrel (104), a rotating rod (107 b) rotatably connected to the inner side of the mounting frame (107 a), and a second large gear (107 c) fixedly connected to one end of the rotating rod (107 b), and a first small gear (107 d) is fixedly connected to the other end of the rotating rod (107 b).
4. The T-bar external drive of any one of claims 1 to 3, wherein: the measuring component (108) comprises a shielding sleeve (108 a) fixedly connected to one end of the side barrel (104), and a measuring probe (108 b) which is adaptively arranged at the top end of the shielding sleeve (108 a).
5. The external driving device for a T-shaped control rod according to claim 4, wherein: the triggering component (205) comprises a connecting sleeve (205 a) fixedly connected to one end of the disc (203), a rotary disc (205 b) fixedly connected to one end of the connecting sleeve (205 a), and a fixed rod (205 c) fixedly connected to one end of the rotary disc (205 b), wherein a second pinion (205 d) is fixedly connected to the outer side of the fixed rod (205 c);
the novel rotary table is characterized in that a first spring (205 e) is arranged in the connecting sleeve (205 a), one end of the first spring (205 e) is fixedly connected with a pushing block (205 f), and an extrusion assembly (205 g) is arranged in the rotary table (205 b).
6. The external driving device for a T-shaped control rod according to claim 5, wherein: the extrusion assembly (205 g) comprises a sliding block (205 g-1) which is connected to the inner side of the rotary table (205 b) in a sliding way, a guide rod (205 g-2) which is fixedly connected to the outer side of the sliding block (205 g-1), and a pressing block (205 g-3) which is fixedly connected to one end of the guide rod (205 g-2);
wherein, the outside of guide arm (205 g-2) is overlapped and is equipped with second spring (205 g-4).
7. The external driving device for a T-shaped control rod according to claim 6, wherein: the storage component (206) comprises a bottom frame (206 a) fixedly connected inside the cylinder body (103), a chain storage barrel (206 b) fixedly connected to the top end of the bottom frame (206 a), and an outer sleeve (206 c) fixedly connected to the top end of the bottom frame (206 a), wherein a third spring (206 d) is arranged inside the outer sleeve (206 c).
8. The external driving device for a T-shaped control rod according to claim 7, wherein: the transmission component (207) comprises an iron chain (207 a) arranged on the outer side of the disc (203), a control rod (207 b) fixedly connected to one end of the iron chain (207 a), and a connecting block (207 c) fixedly connected to the other end of the iron chain (207 a), wherein a limiting disc (207 d) is fixedly connected to the bottom end of the connecting block (207 c);
wherein the third spring (206 d) is disposed between the limit disk (207 d) and the inner top end of the outer sleeve (206 c).
9. The external driving device for a T-shaped control rod according to any one of claims 6 to 8, wherein: the limiting component (208) comprises a protection cylinder (208 a) fixedly connected inside the cylinder body (103), a connecting block (208 b) fixedly connected to the outer side of the protection cylinder (208 a), and a rotating shaft (208 c) rotatably connected to the inner side of the connecting block (208 b);
wherein, torsion springs are arranged in the rotating shaft (208 c).
10. The external driving device for a T-shaped control rod according to claim 9, wherein: the limiting component (208) further comprises a stop plate (208 d) fixedly connected to the outer side of the rotating shaft (208 c), a protruding block (208 e) fixedly connected to the outer side of the stop plate (208 d), and a cross rod (208 f) fixedly connected to the outer side of the rotating shaft (208 c), wherein a supporting rod (208 g) is fixedly connected to the top end of the cross rod (208 f), and a stress plate (208 h) is fixedly connected to the top end of the supporting rod (208 g).
CN202311199257.XA 2023-09-18 2023-09-18 External driving device for T-shaped control rod Active CN117352197B (en)

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US20150325318A1 (en) * 2012-08-06 2015-11-12 Smr Inventec, Llc Fail-safe control rod drive system for nuclear reactor
CN108231217A (en) * 2018-01-23 2018-06-29 上海第机床厂有限公司 Presurized water reactor control rod drive mechanism and its assembly method
CN108922637A (en) * 2018-07-25 2018-11-30 中广核研究院有限公司 A kind of nuclear power station-service control rod drive mechanism
CN208873481U (en) * 2018-07-25 2019-05-17 中广核研究院有限公司 A kind of nuclear power station-service control rod drive mechanism
CN109994224A (en) * 2019-01-11 2019-07-09 中广核工程有限公司 Ship reactor control rod drive mechanism
CN111968761A (en) * 2020-07-31 2020-11-20 清华大学 Drive mechanism support structure and control rod drive wire
CN114913998A (en) * 2022-05-12 2022-08-16 中国科学院上海应用物理研究所 Reactor control rod drive mechanism

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150325318A1 (en) * 2012-08-06 2015-11-12 Smr Inventec, Llc Fail-safe control rod drive system for nuclear reactor
CN108231217A (en) * 2018-01-23 2018-06-29 上海第机床厂有限公司 Presurized water reactor control rod drive mechanism and its assembly method
CN108922637A (en) * 2018-07-25 2018-11-30 中广核研究院有限公司 A kind of nuclear power station-service control rod drive mechanism
CN208873481U (en) * 2018-07-25 2019-05-17 中广核研究院有限公司 A kind of nuclear power station-service control rod drive mechanism
CN109994224A (en) * 2019-01-11 2019-07-09 中广核工程有限公司 Ship reactor control rod drive mechanism
CN111968761A (en) * 2020-07-31 2020-11-20 清华大学 Drive mechanism support structure and control rod drive wire
CN114913998A (en) * 2022-05-12 2022-08-16 中国科学院上海应用物理研究所 Reactor control rod drive mechanism

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