CN112091871A

CN112091871A - Disassembling tool

Info

Publication number: CN112091871A
Application number: CN202010879169.4A
Authority: CN
Inventors: 薄涵亮; 姜胜耀; 张亚军; 王金海; 秦本科; 赵陈儒; 刘潜峰
Original assignee: Tsinghua University
Current assignee: Tsinghua University
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2020-12-18
Anticipated expiration: 2040-08-27
Also published as: CN112091871B

Abstract

The invention relates to the technical field of mechanical disassembling tools, and provides a disassembling tool, which comprises: the first adjusting part comprises an unlocking piece, a moving piece, a first clamping assembly and a driving piece, the first clamping assembly and the moving piece are arranged in the fixing part and connected, and the unlocking piece is connected with the moving piece; the driving piece is arranged to be capable of being switched among a first position, a second position and a third position, wherein in the first position, the first clamping assembly is opened to allow the shaft core to be inserted, in the second position, the first clamping assembly is folded to clamp the shaft core, and the unlocking piece is used for being inserted into the shaft assembly to unlock the clamping of the outer shaft and the shaft core; the driving piece is further arranged to drive the moving piece to move from the second position to the third position along the axial direction of the fixing part, so that the moving piece carrying the shaft core is switched between an installation state and a disassembly state. The disassembling tool provided by the invention can realize the disassembling of the control rod assembly and the driving shaft by adjusting the position of the driving piece, and has the advantages of simple and convenient operation and simple structure.

Description

Disassembling tool

Technical Field

The invention relates to the technical field of mechanical assembling tools, in particular to a disassembling tool.

Background

In the machine component mounting and dismounting process, generally, a mounting and dismounting tool is required to assist. When the shaft assembly comprises a shaft core and an outer shaft sleeved outside the shaft core, the assembly and disassembly of the shaft core and the outer shaft require the assistance of special tools.

The hydraulic driving technology of the control rod of the nuclear reactor is a built-in control rod driving technology, a driving mechanism of the hydraulic driving technology is arranged in a high-temperature, high-pressure and irradiation environment in a reactor pressure container, and three hydraulic cylinders are used for driving transmission and clamping two sets of control rod assemblies to move in sequence through lifting, transmission and clamping, so that the functions of step lifting, step lowering and rod falling of the control rod assemblies are realized. In the installation process of the control rod drive wire, how to conveniently and quickly disassemble and assemble the drive shaft to be matched with the detachable connecting mechanism becomes a problem which troubles technical personnel. And no tool suitable for disassembling and assembling the connection between the cross wing control rod assembly and the drive shaft has been found in the related art of mechanical component assembly.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the disassembly and assembly tool provided by the invention can realize the disassembly and assembly of the outer shaft and the shaft core through the position adjustment of the driving piece, is also suitable for disassembling and assembling the cross wing control rod assembly and the driving shaft, and is simple and convenient to operate and simple in structure.

The dismounting tool according to the embodiment of the invention is used for dismounting a shaft assembly comprising an outer shaft and a shaft core clamped in the outer shaft, and comprises:

the fixing part is provided with an insertion hole for inserting the shaft assembly;

the first adjusting part comprises an unlocking part, a moving part, a first clamping assembly and a first driving assembly, the first driving assembly comprises a driving part, the first clamping assembly and the moving part are both arranged in the fixed part and connected, and the unlocking part is connected with the moving part; the driving piece is arranged to be capable of being switched among a first position, a second position and a third position along the axial direction of the fixing part, the first clamping assembly is opened to allow the shaft core to be inserted into the first position, and the first clamping assembly is folded to clamp the shaft core in the second position; the unlocking piece is used for being inserted into the shaft assembly to unlock the clamping between the outer shaft and the shaft core in the first position and the second position; the driving piece is further arranged to drive the moving piece to move from the second position to the third position along the axial direction of the fixing part, so that the moving piece carries the shaft core to be switched between an installation state of fixing the outer shaft and a disassembly state of moving a preset displacement relative to the outer shaft.

According to one embodiment of the invention, the first adjusting component further comprises a resetting piece arranged in the fixed component, two ends of the resetting piece are respectively connected with the fixed component and the moving piece, and the restoring force of the resetting piece limits the moving piece to a position corresponding to the installation state.

According to one embodiment of the invention, the reset piece is a spring, the driving piece comprises a driving rod, and the spring is sleeved on the outer side of the driving rod.

In an embodiment of the present invention, the first clamping assembly includes a plurality of first clamping members, each of the first clamping members includes a first end, a second end, and a rotating portion located between the first end and the second end, the rotating portion is rotatably connected to the moving member, the unlocking member is connected to the moving member corresponding to the first end, and the first end is provided with a first clamping portion adapted to the annular groove of the shaft core on the shaft core.

In an embodiment of the present invention, the first clamping member includes a position-limiting portion, the position-limiting portion is located between the first end and the second end, the position-limiting portion is disposed to face a central axis of the moving member, the driving head of the driving member abuts against the position-limiting portion at the first position, and the driving head abuts against the second end at the second position.

The position indicating component comprises a connecting rod and an indicating head fixedly connected to the connecting rod, the connecting rod is located at one end, far away from the moving part, of the driving part, and the connecting rod is arranged to move along the axial direction of the fixing component synchronously with the driving part.

An embodiment of the present invention further comprises a guide member including a connection pipe and a guide connected to the connection pipe, the connection rod penetrating the guide.

In one embodiment of the present invention, the connection pipe is provided in plurality, and adjacent connection pipes are connected by the guide.

The second adjusting component comprises an adjusting sleeve, a second clamping component and a second driving component, the second clamping component is connected to the fixing component and provided with a clamping end used for clamping the outer shaft, the second driving component is used for driving the adjusting sleeve to move axially along the fixing component so as to switch between a fourth position where the clamping end is sleeved and a fifth position where the clamping end is not sleeved, the second clamping component is folded to clamp the outer shaft at the fourth position, and the second clamping component is unfolded to loosen the outer shaft at the fifth position.

In an embodiment of the present invention, the second clamping assembly includes a plurality of second clamping members, one end of each of the second clamping members is rotatably connected to the fixing component, and the other end of each of the second clamping members is provided with a second clamping portion adapted to the outer shaft ring groove on the outer shaft.

In one embodiment of the invention, at least one of the first drive assembly and the second drive assembly comprises a drive cylinder to which a line for supplying fluid is connected.

According to one embodiment of the invention, the first driving assembly comprises a first driving cylinder, the telescopic end of the first driving cylinder is connected with the driving piece, the second driving assembly comprises a plurality of second driving cylinders, and the telescopic ends of the second driving cylinders are connected with the adjusting sleeve;

the pipeline comprises a first pipeline communicated with the first driving cylinder and a second pipeline communicated with the second driving cylinder, the second pipeline comprises a main pipeline, a flow dividing joint and a plurality of branch pipelines communicated with the main pipeline through the flow dividing joint, and each second driving cylinder is connected with one branch pipeline in a distributed mode.

In an embodiment of the present invention, the fixing member includes a first pipe section and a second pipe section connected to one end of the first pipe section, the first clamping assembly is connected to the first pipe section, the second clamping assembly is located on the second pipe section, and the adjusting sleeve is sleeved on the outer sides of the first pipe section and the second pipe section.

In one embodiment of the present invention, one of the adjusting sleeve and the first pipe section is provided with a guide portion, and the other is provided with a positioning portion movable along the guide portion.

In an embodiment of the invention, the fixing part further comprises a guide pipe section connected to the second pipe section and forming the entrance of the insertion hole, and an end of the guide pipe section remote from the second pipe section is provided with a guide surface.

In one embodiment of the present invention, the fixing member includes a first pipe section and a second pipe section connected to one end of the first pipe section, the first clamping assembly is connected to the first pipe section, and the cross-sectional area of an opening of the second pipe section connected to one end of the first pipe section is smaller than the cross-sectional area of the outer shaft.

One or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

the dismounting tool provided by the embodiment of the invention comprises a fixing part and a first adjusting part, wherein a shaft assembly is inserted in the fixing part, an unlocking part of the first adjusting part is used for releasing the clamping relation between an outer shaft and a shaft core, the first adjusting part comprises a driving part, the first clamping assembly is used for clamping and fixing or opening the shaft core through the position adjustment of the driving part, when the first clamping assembly clamps and fixes the shaft core, the driving part drives the shaft core to move again, the moving part can drive the first clamping assembly and the shaft core to move, the shaft core and the outer shaft are dismounted, and only the driving part needs to be adjusted in the process of dismounting the shaft core and the outer shaft, so that the dismounting tool is simple and convenient to operate and has a simple structure. If the shaft core and the outer shaft need to be installed, the driving piece is reversely driven. The assembly and disassembly tool of the embodiment is suitable for assembling and disassembling the cross wing control rod assembly and the driving shaft.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a disassembly and assembly tool according to an embodiment of the present invention; the driving piece is at the first position, and the adjusting sleeve is at the fifth position;

FIG. 2 is a schematic structural diagram of a disassembly and assembly tool according to an embodiment of the present invention; the difference with respect to fig. 1 is that the drive member is in the first position and the adjustment sleeve is in the fourth position;

FIG. 3 is a schematic structural diagram of a disassembly and assembly tool according to an embodiment of the present invention; the difference with respect to fig. 1 is that the drive member is in the second position and the adjustment sleeve is in the fourth position;

FIG. 4 is a schematic structural diagram of a disassembly and assembly tool provided by an embodiment of the invention; the difference with respect to fig. 1 is that the drive member is in the third position and the adjustment sleeve is in the fourth position;

FIG. 5 is a schematic view of a portion A of FIG. 1;

FIG. 6 is a partially enlarged view of the portion B in FIG. 1;

FIG. 7 is a partially enlarged schematic view of a portion C of FIG. 1;

FIG. 8 is a partially enlarged view of the portion D in FIG. 1;

FIG. 9 is a schematic view of a portion E of FIG. 1;

FIG. 10 is an enlarged partial view of the structure at the J portion of FIG. 9;

FIG. 11 is a partial enlarged view of the portion F in FIG. 2;

FIG. 12 is a partially enlarged view of the portion K in FIG. 11;

FIG. 13 is an enlarged partial view of the structure of FIG. 3 at H;

FIG. 14 is a partial enlarged view of the portion M of FIG. 13;

FIG. 15 is a partially enlarged schematic view of the portion I in FIG. 4;

FIG. 16 is a partial enlarged view of the portion N in FIG. 15;

FIG. 17 is a schematic diagram of a second pipe section of the assembly/disassembly tool of an embodiment of the present invention;

FIG. 18 is a cross-sectional view of section P-P of FIG. 17;

FIG. 19 is a schematic view of an unlocking member of the installation and removal tool according to an embodiment of the present invention;

FIG. 20 is a cross-sectional view of section Q-Q of FIG. 19;

FIG. 21 is a schematic structural view of a moving member of the disassembling tool according to an embodiment of the present invention;

FIG. 22 is a cross-sectional view of the section R-R in FIG. 21;

fig. 23 is a schematic structural diagram of a shaft assembly suitable for being disassembled and assembled by the disassembling tool according to the embodiment of the invention.

Reference numerals:

1: a fixing member; 11: a guide pipe section; 12: a first tube section; 121: a limit screw; 13: a second tube section; 131: a first connection hole; 132: a first limit hole; 14: a second flange; 15: inserting holes;

2: a first adjustment member; 21: unlocking the lock; 211: a through hole; 22: a first clamping assembly; 221: a first clamping member; 2211: a first clamping part; 2212: a rotating part; 2213: a limiting part; 2214: a first end; 2215: a second end; 23: a first drive assembly; 231: a drive member; 2311: a drive rod; 2312: a drive head; 232: a first drive cylinder; 24: a moving member; 241: a second connection hole; 242: a second limiting hole; 25: a reset member; 26: a spring plug;

3: a second adjustment member; 31: adjusting the sleeve; 311: a first guide hole; 312: a second guide hole; 32: a second clamping assembly; 321: a second clamping member; 3211: a second clamping part; 3212: an adjustment section; 3213: rotating the hole; 3214: a connecting portion; 33: a second drive assembly; 331: a second drive cylinder; 332: a third connecting member; 333: a fourth connecting member;

4: a position indicating member; 41: a connecting rod; 42: an indicator head; 43: a first connecting member; 44: a second connecting member;

5: a guide member; 51: a connecting pipe; 52: a guide member; 53: a first flange; 54: a fixing member;

6: a pipeline; 61: a first pipeline; 62: a second pipeline; 621: a main line; 622: a branch line; 623: a tap joint; 63: a support member;

7: a shaft assembly; 71: an outer shaft; 711: an outer shaft ring groove; 72: a shaft core; 721: a shaft core ring groove; 73: expanding rings; 74: and (5) performing circular sewing.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

One embodiment of the present invention, as shown in fig. 1 to 23, provides a tool for disassembling and assembling a shaft assembly 7 including an outer shaft 71 and a shaft core 72 fastened to the outer shaft 71. The assembly and disassembly tool of the embodiment comprises: the adjusting mechanism comprises a fixed part 1 and a first adjusting part 2, wherein the fixed part 1 is provided with an inserting hole 15 for inserting the shaft assembly 7, and an outer shaft 71 is fixed in the inserting hole 15; the first adjusting part 2 comprises an unlocking part 21, a moving part 24, a first clamping assembly 22 and a first driving assembly 23, the first driving assembly 23 comprises a driving part 231, the first clamping assembly 22 and the moving part 24 are both arranged in the fixed part 1 and connected, and the unlocking part 21 is connected with the moving part 24; the driving member 231 is configured to be shifted in the axial direction of the fixing member 1 between a first position where the first clamping assembly 22 is opened for insertion of the shaft core 72, a second position where the first clamping assembly 22 is closed to clamp the shaft core 72; in the first position and the second position, the unlocking piece 21 is used for being inserted into the shaft assembly 7 to unlock the outer shaft 71 and the shaft core 72; the driving member 231 is further configured to move the moving member 24 from the second position to the third position along the axial direction of the fixed part 1, so that the moving member 24 carries the shaft core 72 to switch between an installation state of being fixed with the outer shaft 71 and a removal state of being moved by a predetermined displacement relative to the outer shaft 71.

When the shaft core 72 and the outer shaft 71 need to be switched from the mounting state to the dismounting state, the shaft core 72 and the outer shaft 71 are inserted into the insertion hole 15 of the fixing part 1 in the mounting state, meanwhile, the outer shaft 71 and the fixing part 1 are fixed, and the shaft core 72 needs to be inserted into the cavity of the moving part 24, at this time, as shown in fig. 1, 2, and 9 to 12, the driving part 231 is in the first position to open the first clamping assembly 22, and the shaft core 72 is ensured to be inserted into the moving part 24 smoothly. Before the shaft core 72 and the outer shaft 71 generate relative displacement, the shaft core 72 needs to be fixed to the moving member 24, and at this time, as shown in fig. 3, 13 and 14, the driving member 231 moves to the second position, so that the first clamping assembly 22 is folded to clamp and fix the shaft core 72, and then the outer shaft 71 is fixed to the fixing component 1, and the shaft core 72 is fixed to the moving member 24 in the fixing component 1. When the driving member 231 is at the first position and the second position (i.e. during the process of inserting the shaft core 72 into the cavity of the moving member 24), the unlocking member 21 connected to the moving member 24 is inserted between the outer shaft 71 and the shaft core 72 to release the locking relationship between the outer shaft 71 and the shaft core 72, and at this time, the shaft core 72 can be driven by the moving member 24 to move relative to the outer shaft 71. After the outer shaft 71 and the shaft core 72 are fixed and the clamping relationship is released, the driving member 231 moves from the second position to the third position, as shown in fig. 4, fig. 15 and fig. 16, in this process, the driving member 231 can drive the moving member 24 to move along the axial direction of the fixing part 1 so as to move the shaft core 72 in the direction away from the outer shaft 71 for a predetermined displacement, thereby realizing the detachment of the shaft core 72 and the outer shaft 71.

When the shaft core 72 and the outer shaft 71 need to be switched from the detached state to the attached state, as shown in fig. 4, 15 and 16, in the detached state, the shaft core 72 is at a position away from the position where the shaft core is attached to the outer shaft 71 by a preset displacement, the shaft core 72 is not in a fixed relationship with the outer shaft 71, and the driving member 231 is at the third position. The driving element 231 moves from the third position to the second position, the shaft core 72 returns to the position where the shaft core 71 is mounted with the outer shaft 71 under the driving of the moving element 24, at this time, the unlocking element 21 is inserted between the outer shaft 71 and the shaft core 72, and the outer shaft 71 and the shaft core 72 cannot be clamped and fixed by the expansion ring 73 in the outer shaft 71; the driving member 231 moves to the first position again, at this time, the first clamping assembly 22 is opened to release the fixing of the shaft core 72, then the driving member 231 moves to the second position and the third position in sequence, the driving member 231 drives the moving member 24 and the unlocking member 21 to move in the direction away from the shaft core 72, so that the expanding ring 73 clamps the outer shaft 71 and the shaft core 72, and the installation of the outer shaft 71 and the shaft core 72 is completed.

The first position, the second position and the third position are three axial positions of the fixing component 1, the first position and the second position are fixed positions matched with the first clamping assembly 22, and the third position can be a fixed position or a position range and can be adjusted according to the preset displacement of the shaft core 72 which needs to move.

In the assembly and disassembly tool of the present embodiment, the driving member 231 can be manually driven or automatically driven to move the moving member 24, and the structure is flexible and various and can be selected according to the requirement. When the driving member 231 is manually driven to move relative to the fixed part 1, no additional power equipment is needed, and the structure is simple; when the driving member 231 is moved relative to the fixing member 1 by automatic driving, such as motor driving, air cylinder driving or hydraulic cylinder driving, the automatic driving is realized, so that the assembling and disassembling process of the shaft assembly 7 is more convenient and faster.

The assembly and disassembly tools of this embodiment, through the cooperation of fixed part 1 and first adjusting part 2, realize the dismouting of axle core 72 and outer axle 71 and adjust, simple structure and easy and simple to handle, it is wide to be applicable to the scope, and the structure is nimble various, still helps improving dismouting efficiency.

Referring to fig. 1 to 4 and 23, an embodiment of a structure of a shaft assembly 7 is provided, in which the shaft assembly 7 includes an outer shaft 71, a shaft core 72 and an expander 73, when the outer shaft 71 and the shaft core 72 are fixed, the outer shaft 71 and the shaft core 72 are clamped by the expander 73, and when the outer shaft 71 and the shaft core 72 need to be detached, the expander 73 needs to be expanded so that the expander 73 enters a groove of the outer shaft 71, and the limit of the expander 73 on the shaft core 72 due to the matching of the expander 73 and the groove is removed. An annular seam 74 is formed between the outer shaft 71 and the shaft core 72, and the annular seam 74 is used for a tool to extend in so that the tool can open the expansion ring 73 and the limit of the expansion ring 73 on the shaft core 72 is released. The axle core 72 is provided with an axle core annular groove 721, and the shape of the clamping end of the first clamping component can be matched with the shape of the axle core annular groove 721, so that the first clamping component and the axle core annular groove 721 are clamped and limited. In combination with the following embodiments, the outer shaft 71 is provided with an outer shaft ring groove 711, and the shape of the clamping end of the second clamping component can be matched with the shape of the outer shaft ring groove 711, so that the clamping end and the outer shaft ring groove 711 are clamped and limited.

When the tool of the present embodiment is applied to a nuclear reactor, a description will be given of an example in which the structure of the shaft assembly 7 is taken as a drive shaft in fig. 23, and an example in which the tool is used to attach and detach the drive shaft.

Referring to fig. 1 to 4 and 9 to 16, in a nuclear reactor, a driving shaft includes a shaft core and an outer shaft, and the driving shaft and a control rod assembly are detachably mounted by detaching and mounting the shaft core and the outer shaft of the driving shaft and moving the shaft core. The outer shaft 71 and the shaft core 72 fixed through the expansion ring 73 are inserted into the fixed part 1, one end of the shaft core 72 is inserted into the cavity of the moving part 24, the outer shaft 71 is sleeved outside the shaft core 72, the other end of the shaft core 72 is connected with a coupling mechanism, the coupling mechanism is provided with a clamping structure for clamping and fixing the control rod assembly, and the shaft core 72 moves along the axial direction to drive the clamping structure to clamp or prevent loosening, so that the connection and the disassembly adjustment of the driving shaft and the control rod assembly are realized. By using the dismounting tool of the embodiment, the fixed relation between the outer shaft 71 and the shaft core 72 can be released, the shaft core 72 can be driven to move along the self axial direction, and the driving shaft and the control rod assembly can be connected or dismounted when the shaft core 72 moves, so that the dismounting tool has a simple structure and is convenient to operate, and is suitable for dismounting the driving wire of the built-in control rod assembly.

Embodiments of the first adjustment member are provided below.

In an embodiment, as shown in fig. 1 to 4 and fig. 9 to 16, the first adjusting component 2 further includes a reset element 25 disposed in the fixing component 1, two ends of the reset element 25 are respectively connected to the fixing component 1 and the moving element 24, and the restoring force of the reset element 25 limits the moving element 24 to a position corresponding to the installation state. When the driving member 231 is located at the first position, the second position or between the first position and the second position, the reset member 25 keeps the moving member 24 at the initial position, so that the moving member 24 is prevented from moving along with the driving member 231 in the process, the unlocking member is ensured to be accurately inserted between the outer shaft and the shaft core, and the first clamping assembly 22 can be ensured to be opened or closed under the action of the driving member 231.

Wherein the initial position is a position corresponding to the installation state; when the driving force of the driving member 231 overcomes the restoring force of the restoring member 25, the driving member 231 drives the moving member 24 to move to the predetermined position, which is the position after the moving member 24 moves by the predetermined displacement along the axial direction of the fixing member 1 relative to the initial position, and at this time, the driving member 231 is located at the third position. When the driving member 231 moves from the third position to the second position, the restoring force of the restoring member 25 provides an auxiliary force to the driving member 231, so that the driving force of the driving member 231 can be reduced, and the operation is more labor-saving.

The restoring member 25 is an elastic member, such as an elastic airbag or a spring, which generates restoring force through elastic deformation. The moving member 24 is in the initial position, and the elastic member is in a compressed state; during the process of moving member 24 from the initial position to the predetermined position, the resilient member continues to compress.

In one embodiment, the reset element 25 is a spring, and the driving element 231 includes a driving rod 2311, and the spring is sleeved outside the driving rod 2311. The driving rod 2311 plays a role in guiding and limiting the spring, and ensures stable telescopic adjustment of the spring.

Wherein, the reset piece 25 is arranged in the fixing part 1, in combination with the following embodiments, the driving piece 231 comprises a driving rod 2311 and a driving head 2312, the driving head 2312 is matched with the first clamping assembly 22 to drive the first clamping assembly 22 to open or close, the driving rod 2311 plays a role in power transmission, and the driving rod 2311 also plays a role in guiding the reset piece 25. The driving rod 2311 and the driving head 2312 are integrally formed or detachably connected, and the structure is various and can be selected according to requirements.

Also, the driving rod 2311 is provided to extend the length of the driving member 231 to drive the first adjusting member 2 for a long distance, thereby facilitating the long-distance unlocking of the shaft core 72 and the outer shaft 71. When the dismounting tool of this embodiment is applied to a nuclear reactor, one end of the driving element 231 of the dismounting tool, which is provided with the driving head 2312, can extend into the reactor pressure vessel, so that the dismounting tool can dismount the driving shaft and the control rod in the reactor pressure vessel outside the reactor pressure vessel.

In one embodiment, as shown in fig. 1 to 4 and fig. 9 to 16, the first clamping assembly 22 includes a plurality of first clamping members 221, and the plurality of first clamping members 221 can be mutually folded or mutually unfolded to clamp and fix the shaft core 72 or release the shaft core 72.

First holder 221 includes first end 2214, second end 2215 and is located the rotation portion 2212 between first end 2214 and second end 2215, and rotation portion 2212 rotates and connects in moving member 24, and the moving member 24 that first end 2214 corresponds is interior to connect the unlocking piece 21, and first end 2214 is equipped with the first joint portion 2211 with axle core annular 721 looks adaptation on the axle core 72. The first clamping member 221 is rotatably connected to the moving member 24 through the rotating portion 2212, the first clamping member 221 is folded or unfolded through rotation adjustment, and the adjustment process of the first clamping member 221 is simple, convenient and flexible. The rotating portion 2212 is disposed between the first end 2214 and the second end 2215, when the first clamping member 221 rotates, the first end 2214 and the second end 2215 are both rotated and adjusted, when the shaft core 72 needs to enter between the first clamping member 221, the first end 2214 is opened, the second end 2215 is folded, and when the shaft core 72 needs to be clamped and fixed by the first clamping member 221, the first end 2214 is folded, and the second end 2215 is opened. The relative position between the first end 2214 and the second end 2215 is adjusted by the driving member 231 at the first position and the second position.

As shown in fig. 21 and 22, the moving member 24 is provided with a second connecting hole 241, the rotating portion 2212 is provided with a hole structure, and the first connecting hole 131 and the rotating portion 2212 penetrate through the connecting shaft to realize the rotating connection between the first clamping member 221 and the moving member 24. Meanwhile, a second limiting hole 242 is formed in the moving member 24, and the second limiting hole 242 is a hole along the axial direction of the moving member 24, so that the first end 2214 or the second end 2215 of the first clamping member 221 can extend into or move out of the hole. Wherein, the driving member 231 is inserted into the moving member 24, three second connecting holes 241 are uniformly distributed in the circumferential direction of the moving member 24, that is, three first clamping members 221 are included corresponding to the first clamping assembly 22, and three first clamping members 221 are uniformly distributed in the circumferential direction of the moving member 24.

In one embodiment, as shown in fig. 9-16, the first clamping member 221 includes a stop 2213, the stop 2213 is located between the first end 2214 and the second end 2215, the stop 2213 is disposed toward the central axis of the moving member 24, in the first position, the driving head 2312 of the driving member 231 abuts the stop 2213, and in the second position, the driving head 2312 abuts the second end 2215. The first position of the driving head 2312 is determined through the limiting part 2213, the determination of the first position is convenient and accurate, the structure is simple, and the driving part 231 and the moving part 24 are not required to be provided with auxiliary positioning structures.

The driving member 231 is inserted into the moving member 24, the driving member 231 is at the first position, the driving member 231 abuts against the limit portion 2213 of the first clamping member 221, the first ends are mutually opened to enable the shaft core 72 to be inserted into the unlocking member 21, and the unlocking member 21 is inserted between the shaft core 72 and the outer shaft 71; in the second position of the driving member 231, the driving member 231 abuts against the second end 2215 of the first clamping member 221, so that the first ends are mutually folded, and the shaft core 72 is connected to the moving member 24 through the first clamping member, so that the shaft core 72 and the moving member 24 can move synchronously under the driving of the driving member 231.

Specifically, the driving member 231 and the moving member 24 share the same central axis, the first clamping portion 2211 and the limiting portion 2213 of the first clamping member 221 face the inner side of the moving member 24, the shape of the first clamping portion 2211 is matched with that of the shaft core annular groove 721, the shape of the limiting portion 2213 is close to that of the first clamping portion 2211, and the limiting portion 2213 is provided with an inclined guide surface, so that the driving head 2312 can accurately move to the first position. The driving head 2312 is at the first position, the second end 2215 of the first clamping piece 221 abuts against the driving rod 2311, the side wall of the first clamping piece 221 opposite to the first clamping portion 2211 abuts against the inner wall of the first pipe section 12 of the fixing part 1, and the driving rod 2311 and the inner wall of the first pipe section 12 simultaneously limit the opening range of the first end 2214 of the first clamping piece 221. When the driving head 2312 is at the second position and the third position, the first clamping portion 2211 of the first clamping member 221 is clamped in the shaft core annular groove 721, the driving head 2312 abuts against the second end 2215, and the side wall corresponding to the second end 2215 is attached to the inner wall of the first pipe section 12.

With reference to the above-mentioned embodiment and as shown in fig. 9 to 16, 21 and 22, when the moving member 24 is connected to the restoring member 25, the moving member 24 is provided with a groove, a spring plug 26 is disposed in the groove, and the restoring member 25 is fixedly connected to the spring plug 26, so as to ensure the connection stability between the restoring member 25 and the moving member 24. In the second position and the third position, the driving head 2312 is limited by the spring plug 26, so that the driving head 2312 and the moving member 24 are relatively fixed.

In one embodiment, as shown in fig. 9 to 16, 19 and 20, the unlocking member 21 is a tubular structure with one closed end, the open end of the unlocking member 21 can be used for the shaft core 72 to extend into, and the closed end of the unlocking member 21 can be used for limiting the shaft core 72, so as to ensure that the shaft core annular groove 721 accurately corresponds to the first clamping portion 2211 of the first clamping member 221. The side wall of the unlocking piece 21 is inserted between the shaft core 72 and the expansion ring 73, so that the expansion ring 73 is hidden in the groove of the outer shaft 71, and the clamping limit of the expansion ring 73 on the shaft core 72 and the outer shaft 71 is released. The side wall of the unlocking piece 21 is provided with a through hole 211, and the position of the through hole 211 corresponds to the first clamping portion 2211, so that the first clamping portion 2211 can extend into or move out of the unlocking piece 21.

The unlocking member 21 is fixed in the moving member 24 by welding or screwing.

The following provides an embodiment in which the disassembly and assembly tool further comprises a second adjustment member 3 for fixing or loosening the outer shaft 71.

In one embodiment, referring to fig. 1 to 4 and 9 to 16, the dismounting tool further includes a second adjusting part 3, the second adjusting part 3 includes an adjusting sleeve 31, a second clamping assembly 32, and a second driving assembly 33, the second clamping assembly 32 is connected to the fixing part 1, the second clamping assembly 32 includes a clamping end for clamping the outer shaft 71, the second driving assembly 33 is used for driving the adjusting sleeve 31 to move along the fixing part 1 in the axial direction, so that the adjusting sleeve 31 is switched between a fourth position for sleeving the clamping end and a fifth position for releasing the clamping end, in the fourth position, the second clamping assembly 32 is closed to clamp the outer shaft 71, and in the fifth position, the second clamping assembly 32 is opened to release the outer shaft 71. The outer shaft 71 is fixed to the fixing member 1 or released from the fixing member 1 by the second adjusting member 3.

The adjusting sleeve 31 is sleeved outside the fixing part 1, the second driving assembly 33 is used for driving the adjusting sleeve 31 to move along the fixing part 1, and the structure is simple. Wherein the second driving assembly 33 is a device that can provide linear motion power, such as a driving cylinder in the embodiments described below.

The outer shaft 71 is clamped and fixed by the second clamping assembly 32, wherein the second clamping assembly 32 can be elastically deformed under the sleeving pressure of the adjusting sleeve 31 to clamp the clamping portion on the outer shaft 71, or the second clamping assembly 32 enables the clamping end to rotate to the position where the outer shaft 71 is clamped and fixed under the sleeving pressure of the adjusting sleeve 31. The structure of the second clamping assembly 32 is various and can be selected according to the requirement.

Referring to fig. 1 and 9, the adjustment sleeve 31 is in a fifth position, the second clamping assembly 32 is open, and the outer shaft 71 is movably adjustable relative to the stationary component 1; referring to fig. 2 and 11, with the adjustment sleeve 31 in the fourth position, the second clamping assembly 32 is collapsed to clamp the fixed outer shaft 71, and the outer shaft 71 remains fixed relative to the fixing component 1.

In one embodiment, the second clamping assembly 32 includes a plurality of second clamping members 321, one end of each second clamping member 321 is rotatably connected to the fixing component 1, the other end of each second clamping member 321 is provided with a second clamping portion 3211 adapted to the outer annular groove 711 of the outer shaft 71, and the plurality of second clamping portions 3211 form a clamping end of the second clamping assembly 32. The second clamping assembly 32 is rotated to adjust the position, and the adjustment is flexible.

The structure of the second clamping member 321 is similar to that of the first clamping member 221 in the above embodiment. The second clamping member 321 further includes an adjusting portion 3212, a rotating portion 2212 and a connecting portion 3214, the rotating portion 2212 is disposed between the adjusting portion 3212 and the connecting portion 3214, and one end of the connecting portion 3214 far away from the rotating portion 2212 is connected to the second clamping portion 3211. Referring to fig. 9, when the adjusting sleeve 31 is located at the fifth position, the adjusting sleeve 31 is sleeved on the outer side of the adjusting portion 3212, and the wall surface of the adjusting portion 3212 is attached to the inner wall of the adjusting sleeve 31, at this time, the plurality of second snapping portions 3211 are opened; referring to fig. 11, when the adjusting sleeve 31 is located at the fourth position, the adjusting sleeve 31 is sleeved on the outer side of the second clamping portion 3211, the outer sidewall surface of the second clamping portion 3211 is attached to the inner wall of the adjusting sleeve 31, and the inner sidewall surface of the second clamping portion 3211 is clamped to the outer annular groove 711 of the outer shaft 71.

Referring to fig. 9, 11, 13 and 15, the adjusting sleeve 31 is further provided with a second guiding hole 312, during the moving process of the adjusting sleeve 31, the adjusting portion 3212 of the second clamping member 321 extends along the second guiding hole 312, and the second guiding hole 312 guides and limits the adjusting portion 3212.

Referring to fig. 17 and 18, the fixing member 1 includes a second pipe section 13, a second clamping member 321 is rotatably connected to the second pipe section 13, a plurality of first connection holes 131 are uniformly distributed in the circumferential direction of the second pipe section 13, a rotation hole 3213 is formed in the second clamping member 321, and the first connection holes 131 and the rotation hole 3213 penetrate through the rotation shaft, so that the second clamping member 321 is rotatably connected to the second pipe section 13. Meanwhile, the second pipe section 13 is further provided with a first limiting hole 132, the first limiting hole 132 is used for installing a second clamping member 321, and the second clamping member 321 rotates to enable the second clamping portion 3211 to penetrate through the first limiting hole 132, i.e., the second clamping portion 3211 enters or moves out of the second pipe section 13.

In one embodiment, one of the adjustment sleeve 31 and the fixing member 1 is provided with a guide portion, and the other is provided with a positioning portion movable along the guide portion. The guide part is matched with the positioning part to guide and limit the moving process of the adjusting sleeve 31 relative to the fixing part 1, so that the adjusting sleeve 31 is ensured to stably move.

In connection with the following embodiments, when the fixing member 1 includes the first pipe section 12 and the second pipe section 13, one of the adjustment sleeve 31 and the first pipe section 12 is provided with a guide portion, and the other is provided with a positioning portion movable along the guide portion. The guide part is the first guiding hole 311 of seting up in adjusting sleeve 31, and the location portion is the stop screw 121 who is fixed in first pipe section 12, and adjusting sleeve 31 removes the in-process, and first guiding hole 311 leads and spacing with stop screw 121 each other, simple structure and simple installation. And both ends of the first guide hole 311 limit the limit screw 121, thereby limiting the limit position at which the adjustment sleeve 31 moves with respect to the fixing member 1.

If the second pipe section 13 is long enough to accommodate the guiding of the adjustment sleeve 31, one of a guide or a positioning can be provided in the second pipe section 13.

Wherein, the guide part and the positioning part can be evenly distributed in a plurality of groups in the circumferential direction of the adjusting sleeve 31 and the fixing part 1 to ensure that the adjusting sleeve 31 stably moves.

Next, with reference to the above-mentioned embodiments, and with reference to fig. 1 to 4, 5, 7, and 8 to 16, embodiments of specific implementations of the first driving assembly 23 and the second driving assembly 33 are provided.

In one embodiment, at least one of the first drive assembly 23 and the second drive assembly 33 is provided as a drive cylinder to which a line 6 for supplying fluid is connected. The driving cylinder provides power for linear motion, and the structure is simple and convenient to control.

Wherein, the fluid provides driving force, and the fluid can be gas, water, oil or other liquid, namely the driving cylinder can be a cylinder or a hydraulic cylinder.

In one embodiment, as shown in fig. 1 to 4 and fig. 5 to 9, the first driving assembly 23 includes a first driving cylinder 232, a telescopic end of the first driving cylinder 232 is connected to the driving member 231, and the first driving cylinder 232 drives the driving member 231 to move between the first position, the second position and the third position, so that the adjustment of the first adjusting member 2 on the shaft core 72 is realized, the structure is simple, and the adjustment is simple and convenient.

Wherein the line 6 comprises a first line 61 communicating with the first drive cylinder 232, the first line 61 supplying the first drive cylinder 232 with drive fluid.

Referring to fig. 7 to 9, the second driving assembly 33 includes a plurality of second driving cylinders 331, the telescopic ends of the second driving cylinders 331 are connected to the adjusting sleeve 31, and the second driving cylinders 331 are uniformly distributed in the circumferential direction of the adjusting sleeve 31, so as to ensure that the adjusting sleeve 31 is uniformly stressed. The housings of the plurality of second driving cylinders 331 are connected by a third connecting member 332, and the third connecting member 332 is fixed to the guide member 5 in the following embodiments, ensuring stable fixation of the second driving cylinders 331.

Of course, the second driving cylinder 331 is not limited to be fixed to the guide member 5, and may be fixed to the fixing member 1, and may be selected according to the dimensional relationship and positional relationship of the respective components.

In the above embodiment, the pipeline 6 further comprises a second pipeline 62 communicated with the second driving cylinders 331, the second pipeline 62 comprises a main pipeline 621, a branch joint 623 and a plurality of branch pipelines 622 communicated with the main pipeline 621 through the branch joint 623, and each second driving cylinder 331 is distributed and connected with one branch pipeline 622. The driving fluid is supplied to the plurality of branch lines 622 through the main line 621 to ensure uniform driving power of the plurality of second driving cylinders 331, thereby ensuring stable movement of the adjustment sleeve 31. Wherein the tap 623 is fixed to the fixing member 1 or the guide member 5 in the embodiment described below.

The sections of the first pipeline 61 corresponding to the main pipeline 621 and the main pipeline 621 are symmetrically distributed on two sides of the guiding component 5 in the following embodiments, so as to ensure the symmetry of the assembly and disassembly tool and stabilize the structure of the assembly and disassembly tool.

The first line 61 and the second line 62 are connected by a support 63, and the support 63 can be overlapped on the device to play a role of supporting the dismounting tool in the above embodiment.

When the dismounting tool is applied to a reactor pressure vessel in a nuclear reactor, the pipeline 6 in the above embodiment can extend from the outside of the reactor pressure vessel to the inside of the reactor pressure vessel, and the moving member 24 and the adjusting sleeve 31 are driven to move by supplying fluid to the outside of the reactor pressure vessel, so that the driving shaft can be dismounted remotely, and time and labor are saved. The supporting member 63 may be overlapped with the vessel mouth of the reactor pressure vessel to provide a supporting force for the disassembling tool.

An embodiment of the fixing part 1 is provided below.

In one embodiment, as shown in fig. 9 to 16, the fixing member 1 includes a first pipe section 12 and a second pipe section 13 connected to one end of the first pipe section 12, the first clamping assembly 22 in the above embodiment is connected to the first pipe section 12, the cross-sectional area of the opening of the second pipe section 13 connected to one end of the first pipe section 12 is smaller than that of the outer shaft 71, and the second pipe section 13 serves to limit the outer shaft 71. Under the condition that the dismounting tool does not comprise the second adjusting part 3 in the above embodiment, in the process that the driving part 231 moves from the second position to the third position, the second pipe section 13 limits the outer shaft 71, and the driving part 231 drives the shaft core 72 to move, so that the outer shaft 71 and the shaft core 72 can be separated, and the structure is simpler.

When the dismounting tool comprises the second clamping assembly 32 located on the second pipe section 13, the adjusting sleeve 31 is sleeved on the outer sides of the first pipe section 12 and the second pipe section 13, and the second pipe section 13 and the second clamping assembly 32 are combined to fix and limit the outer shaft 71, so that the outer shaft 71 and the shaft core 72 are accurately and quickly dismounted.

In another embodiment, as shown in fig. 1 to 4, 9, 11, 13 and 15, the fixing component 1 further includes a guiding pipe section 11, the guiding pipe section 11 is connected to the second pipe section 13 and forms an entrance of the insertion hole 15, one end of the guiding pipe section 11 away from the second pipe section 13 is provided with a guiding surface, and the guiding surface is a tapered surface, so that an open end of the insertion hole 15 is formed into a tapered structure to guide the shaft assembly 7 to be inserted into the insertion hole 15, thereby ensuring that the shaft assembly 7 can be accurately and quickly inserted into the insertion hole 15.

In one embodiment, referring to fig. 9, 11, 13 and 15, the fixing member 1 is a multi-segment pipe splicing structure, when the fixing member 1 includes the first pipe segment 12, and when the first adjusting member 2 includes the reset member 25 in the above embodiments, the reset member 25 is disposed in the first pipe segment 12, an end of the first pipe segment 12 away from the second pipe segment 13 is connected to the second flange 14, and the second flange 14 limits the reset member 25. The second flange 14 is provided with a hole for clamping the reset piece 25, so that the reset piece 25 is convenient to fix.

Meanwhile, the driving member 231 penetrates the second flange 14 and is connected to the telescopic end of the first driving cylinder 232. The housing of the second driving cylinder 331 is fixed to the second flange 14, and the telescopic end of the second driving cylinder 331 passes through the second flange 14 to be connected with the adjustment sleeve 31.

The following provides an example in which the attaching and detaching tool further includes auxiliary structures such as the position indicating member 4 and the guide member 5.

In one embodiment, as shown in fig. 1 to 6, the disassembling tool further includes a position indicating component 4, the position indicating component 4 includes a connecting rod 41 and an indicating head 42 fixedly connected to the connecting rod 41, the connecting rod 41 is located at an end of the driving member 231 away from the moving member 24, and the connecting rod 41 is configured to move along the axial direction of the fixing component 1 synchronously with the driving member 231. The connecting rod 41 moves synchronously with the actuator 231 and the indicator head 42 on the connecting rod 41 can be used to indicate the position of the actuator.

Wherein, connecting rod 41 is equipped with many in the length direction of position indication part 4, and many connecting rods 41 connect through first connecting piece 43, and first connecting piece 43 can include pipe fitting and set screw (not being restricted to set screw, still can be for fixed pin or other structures), and the pipe fitting cup joints and fixes through set screw with connecting rod 41 mutually, and is fixed stable, and makes things convenient for the dismouting. The length of the position indication part 4 can be adjusted by adjusting the length of each connecting rod 41 or splicing, and the length adjustment of the position indication part 4 is flexible.

In the above embodiment, the connecting rod 41 may also be a pipe, which reduces the weight.

When the dismounting tool of this embodiment is applied to a reactor pressure vessel for dismounting the cross wing control rod assembly and the driving shaft, the connecting rod 41 can extend out of the reactor pressure vessel, and one end of the connecting rod 41 extending out of the reactor pressure vessel is connected with the indicating head 42, and the indicating head 42 is used for indicating the position of the driving member 231, so as to remotely monitor the position of the driving member 231, thereby facilitating the dismounting of the driving shaft by remote control.

In the above embodiment, the first driving cylinder 232 is a double-ended cylinder (e.g., a double-ended cylinder), the driving member 231 and the connecting rod 41 are respectively connected to a first telescopic end and a second telescopic end of the first driving cylinder 232, which are oppositely disposed, after fluid is introduced into the first driving cylinder 232, the first telescopic end and the second telescopic end synchronously and equidirectionally move, so that the driving member 231 and the connecting rod 41 synchronously move, and further the position of the driving member 231 can be indicated by the position of the connecting rod 41.

Referring to fig. 8, the second telescopic end is connected to the connecting rod 41 through a second connecting member 44, the second connecting member 44 is sleeved on the outer side of the telescopic end corresponding to the connecting rod 41 and the first driving cylinder 232, and is connected through a fixing screw or a fixing pin, so that the structure is simple and the connection is simple. As shown in fig. 9, the driving member 231 is connected to the first telescopic end through the fourth connecting member 333, and the fourth connecting member 333 is also sleeved outside the driving member 231 and can be connected by a fixing screw or a fixing pin, so that the structure is simple.

In one embodiment, as shown in fig. 1 to 6, the disassembling tool further includes a guide part 5, the guide part 5 includes a connection pipe 51 and a guide 52 connected to the connection pipe 51, and the connection rod 41 penetrates through the guide 52. The connecting pipe 51 is sleeved outside the connecting rod 41, so that the connecting rod 41 is protected, the connecting rod 41 is prevented from being interfered by external conditions, and the indicating precision of the connecting rod 41 is ensured. The hole of the guide 52 is matched with the connecting rod 41 in shape, and the cross section of the hole of the guide 52 is the same as that of the connecting rod 41 in shape and size, so that the guide and limit functions of the connecting rod 41 are achieved.

Referring to fig. 5 and 6, the connecting rod 41 is a round rod, the hole of the guide 52 is a round hole, and the hole diameter of the guide 52 is slightly larger than the diameter of the connecting rod 41, so that the resistance of the guide 52 to the connecting rod 41 is reduced, and the connecting rod 41 can be supported and guided to move up and down.

Referring to fig. 1 and 5, the top of the connecting pipe 51 is connected to a guide 52, the guide 52 is connected to a fixing member 54, the fixing member 54 is fixed to a first flange 53, the connecting rod 41 extends out of the fixing member 54, the indicating head 42 is located above the first flange 53, and the first flange 53 is connected to a U-shaped bolt, which can protect the indicating head 42.

In one embodiment, the length of the dismounting tool is adjusted according to actual needs, the length of the connecting rod 41 is adjustable, and the length of the guide part 5 is also adjustable. Wherein, the connecting pipe 51 is provided with a plurality of, and adjacent connecting pipe 51 passes through the guide 52 and connects, sets up guide 52 at connecting pipe 51 butt joint position, can save the connecting piece, can also stabilize direction connecting rod 41. Therefore, a plurality of guides 52 are provided along the length of the guide member 5 to connect the plurality of connection pipes 51.

Wherein, the guide piece 52 is connected with the connecting pipe 51 by screw thread connection, insertion or clamping, etc., which is convenient for disassembly and assembly.

Wherein, when the pipeline 6 in the above embodiment includes the first pipeline 61 and the second pipeline 62, the first pipeline 61 and the second pipeline 62 are symmetrically distributed on the outer side of the guide member 5.

When the embodiment is applied to a nuclear reactor, the driving shaft and the control rod assembly are clamped and fixed or opened and separated through the clamping structure of the coupling mechanism, the opening and closing of the clamping structure are related to the position of the shaft core 72 in the driving shaft, the shaft core 72 moves towards the direction far away from the control rod, then the clamping structure is opened, the driving shaft is separated from the control rod assembly, the shaft core 72 moves towards the direction close to the control rod assembly, then the clamping structure is clamped, and the driving shaft is connected with the control rod assembly. The driving shaft comprises an outer shaft 71, a shaft core 72 and an expansion ring 73 shown in fig. 23, the disassembling tool of the above embodiment is used in cooperation with the clamping structure, when the driving shaft and the control rod assembly need to be disassembled, the shaft core 72 needs to be disassembled from the outer shaft 71, one end of the driving shaft, which is far away from the control rod assembly, is inserted into the inserting hole 15 of the fixing part 1, the outer shaft 71 is fixed to the fixing part 1, the shaft core 72 is inserted and fixed into the moving part 24 of the first adjusting part 2, the unlocking part 21 releases the clamping of the expansion ring 73 on the outer shaft 71 and the shaft core 72, the driving part 231 drives the moving part 24 to move along the axial direction of the fixing part 1, so that the shaft core 72 can independently move for a preset displacement, and the shaft core 72 drives the clamping structure to be; when the driving shaft and the control rod assembly need to be fixed, the shaft core 72 needs to move reversely for a preset distance and is fixed with the outer shaft 71, at this time, the driving part 231 drives the moving part 24 reversely, and meanwhile, the shaft core 72 moves to drive the clamping structure to clamp and fix the control rod assembly and the driving shaft.

Referring to fig. 1 to 23, when the dismounting tool includes a fixing component 1, a first adjusting component 2, a second adjusting component 3 and a position indicating component 4, the driving shaft is inserted into the insertion hole 15 of the fixing component 1, the moving component 24 inserts the unlocking component 21 into the annular gap 74 at the upper end of the driving shaft under the action of the reset component 25, and expands the expanding ring 73 between the outer shaft 71 and the shaft core 72, so as to be in a shaft recognizing state; the second driving cylinder 331 works to drive the adjusting sleeve 31 to move, so that the second clamping piece 321 grasps the outer shaft ring groove 711 and is in a shaft grasping state; then the first driving cylinder 232 works to make the driving member 231 drive the first clamping member 221 to grab the shaft core annular groove 721, and the state of the first clamping member 221 and the shaft core annular groove 721 is indicated through the position of the indicating head 42; the first driving cylinder 232 is operated again to move the moving member 24 and the core 72 along the axial direction of the fixed member 1 by the driving member 231, and the position of the core 72 is indicated again by the indicating head 42, so that the coupling mechanism of the driving shaft is operated to grasp or release the control rod assembly.

The disassembling tool of the embodiment can be applied to the disassembling process of the control rod drive wire of the nuclear reactor, solves the problem of remote assembling and disassembling of the control rod assembly and the drive shaft in the installation process of the drive wire, can automatically drive the control rod assembly and the drive shaft to be disassembled and assembled, has the characteristics of simple structure and convenient operation, and can realize engineering and commercialization. The embodiment not only meets the engineering application of the control rod built-in water pressure driving technology on the advanced integrated small water reactor with the thermal power of 50-300MW, but also can be applied to the dismounting process of the middle shaft assembly 7 of other equipment.

The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.

Claims

1. The utility model provides a disassembly and assembly tool for the dismouting includes the outer axle and blocks in the axle subassembly of outer axle inner spindle core, its characterized in that includes:

the first adjusting part comprises an unlocking part, a moving part, a first clamping assembly and a first driving assembly, the first driving assembly comprises a driving part, the first clamping assembly and the moving part are both arranged in the fixed part and connected, and the unlocking part is connected with the moving part;

the driving piece is arranged to be capable of being switched among a first position, a second position and a third position along the axial direction of the fixing part, the first clamping assembly is opened to allow the shaft core to be inserted into the first position, and the first clamping assembly is folded to clamp the shaft core in the second position; the unlocking piece is used for being inserted into the shaft assembly to unlock the clamping between the outer shaft and the shaft core in the first position and the second position; the driving piece is further arranged to drive the moving piece to move from the second position to the third position along the axial direction of the fixing part, so that the moving piece carries the shaft core to be switched between an installation state of fixing the outer shaft and a disassembly state of moving a preset displacement relative to the outer shaft.

2. The assembly and disassembly tool of claim 1, wherein the first adjustment component further comprises a reset element disposed in the fixed component, two ends of the reset element are respectively connected to the fixed component and the moving element, and the restoring force of the reset element limits the moving element to a position corresponding to the installation state.

3. The disassembly and assembly tool of claim 2, wherein the return element is a spring, the driving element comprises a driving rod, and the spring is sleeved outside the driving rod.

4. The assembly and disassembly tool of claim 1, wherein the first clamping assembly comprises a plurality of first clamping members, each of the first clamping members comprises a first end, a second end, and a rotating portion located between the first end and the second end, the rotating portion is rotatably connected to the moving member, the unlocking member is connected to the moving member corresponding to the first end, and the first end is provided with a first engaging portion adapted to the annular groove of the shaft core on the shaft core.

5. The assembly and disassembly tool of claim 4, wherein the first clamping member includes a stop portion, the stop portion being located between the first end and the second end, the stop portion being disposed toward a central axis of the moving member, in the first position, the driving head of the driving member abuts the stop portion, and in the second position, the driving head abuts the second end.

6. The assembly and disassembly tool of claim 1, further comprising a position indicating member, the position indicating member comprising a connecting rod and an indicating head fixedly connected to the connecting rod, the connecting rod being located at an end of the driving member remote from the moving member, the connecting rod being configured to move in an axial direction of the fixing member in synchronization with the driving member.

7. The disassembly and assembly tool of claim 6, further comprising a guide member, the guide member comprising a connection tube and a guide connected to the connection tube, the connection rod extending through the guide.

8. The disassembly and assembly tool of claim 7, wherein the connecting pipe is provided in plurality, and adjacent connecting pipes are connected by the guide.

9. The assembly and disassembly tools of any one of claims 1 to 8, further comprising a second adjusting part, the second adjusting part comprises an adjusting sleeve, a second clamping assembly and a second driving assembly, the second clamping assembly is connected to the fixing part, the second clamping assembly is provided with a clamping end for clamping the outer shaft, the second driving assembly is used for driving the adjusting sleeve to move axially along the fixing part so as to cover a fourth position of the clamping end and release the conversion between a fifth position where the clamping end is sleeved, the fourth position where the second clamping assembly is drawn in to clamp the outer shaft, and the fifth position where the second clamping assembly is opened to loosen the outer shaft.

10. The disassembly and assembly tool of claim 9, wherein the second clamping assembly comprises a plurality of second clamping members, one end of each second clamping member is rotatably connected to the fixing part, and the other end of each second clamping member is provided with a second clamping portion matched with the outer annular groove on the outer shaft.

11. The demolition tool according to claim 9, wherein at least one of the first drive assembly and the second drive assembly comprises a drive cylinder to which a line for supplying fluid is connected.

12. The assembly and disassembly tool of claim 11, wherein the first drive assembly comprises a first drive cylinder having a telescoping end coupled to the drive member, and the second drive assembly comprises a plurality of second drive cylinders having a telescoping end coupled to the adjustment sleeve;

13. The assembly and disassembly tool of claim 9, wherein the fixed member comprises a first pipe segment and a second pipe segment connected to an end of the first pipe segment, the first clamping assembly is connected to the first pipe segment, the second clamping assembly is located on the second pipe segment, and the adjustment sleeve is sleeved outside the first pipe segment and the second pipe segment.

14. The assembly and disassembly tool of claim 13, wherein one of the adjustment sleeve and the first pipe section is provided with a guide portion, and the other is provided with a positioning portion movable along the guide portion.

15. The assembly and disassembly tool of claim 13, wherein the securing member further comprises a guide tube segment connected to the second tube segment and defining the entrance of the insertion hole, wherein an end of the guide tube segment remote from the second tube segment is provided with a guide surface.

16. The disassembly and assembly tool of any one of claims 1-8, wherein the fixing part comprises a first pipe section and a second pipe section connected to one end of the first pipe section, the first clamping assembly is connected to the first pipe section, and the cross-sectional area of an opening of the second pipe section connected to one end of the first pipe section is smaller than that of the outer shaft.