CN218226450U - Disassembling and assembling tool for shearing cover of nuclear power explosion valve - Google Patents
Disassembling and assembling tool for shearing cover of nuclear power explosion valve Download PDFInfo
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- CN218226450U CN218226450U CN202222072040.XU CN202222072040U CN218226450U CN 218226450 U CN218226450 U CN 218226450U CN 202222072040 U CN202222072040 U CN 202222072040U CN 218226450 U CN218226450 U CN 218226450U
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- shearing
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- disassembling
- shearing cover
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Abstract
The utility model relates to the technical field of nuclear power equipment maintenance, in particular to a disassembling tool for a shearing cover of a nuclear power explosion valve, which comprises a connecting piece, wherein a hoisting part is arranged on the connecting piece, and the hoisting part forms a hoisting connecting structure when the connecting piece is hoisted; the connecting bolt is used for connecting the connecting piece to the shearing cover so as to form a traction connecting structure on the shearing cover. The utility model discloses well preferred assembly and disassembly tools can be used for more conveniently, steadily tearing open/adorn explosion valve shear cap.
Description
Technical Field
The utility model relates to a nuclear power equipment overhauls technical field, more specifically says and relates to a disassembling and assembling tool of nuclear power blast valve shearing lid.
Background
The AP1000 nuclear power plant adopts 12 blasting valves in total, and comprises 4 blasting valves of 14 inches on a 4 th-level pipeline of an automatic pressure relief system, 4 blasting valves of 8 inches on a safety injection pipeline of a refueling water tank in a containment and 4 blasting valves of 8 inches on a recycling pipeline of the containment. According to the requirements of supervision tests and in-service tests, 1 disintegration check is respectively required to be extracted from each type of the blast valve in each refueling period, and whether the function of the blast valves on the pipelines of each system is normal is verified. Wherein, the shearing cover of the blasting valve is generally horizontally embedded in the valve body. And the smoothness of the whole surface of the shearing cover is not lower than Ra3.2, and the surface is flat and smooth, so that the shearing cover is difficult to remove in a clamping manner.
The Chinese invention patent application with the application number of CN201911257766.7 discloses a disassembling and assembling tool for a shearing cover of a blasting valve, which comprises an installation frame, wherein a jacking sleeve is fixed on the installation frame, the front end of the jacking sleeve is provided with a plurality of guide inclined planes with lower front parts and higher rear parts, each guide inclined plane is provided with a jacking block in sliding fit with the guide inclined plane, and each jacking block is spliced to form a ring shape matched with the inner wall of the shearing cover of the blasting valve; the inner thread of the jacking sleeve is matched with a jacking lead screw, and the front end of the jacking lead screw penetrates out of the front end of the jacking sleeve and is provided with a limiting tray matched with the front end face of the jacking block. It should be noted that: the scheme is that the inner wall of the shear cover is propped against the inner wall of the shear cover from the inside of the shear cover, and then the shear cover is driven to move by friction force for dismounting; however, when the dismounting operation is actually performed, the surface of the shear cover is smooth, so that the sliding deviation is easy to occur between the jacking block and the inner wall of the shear cover in the dismounting process, and the dismounting process is not stable.
SUMMERY OF THE UTILITY MODEL
The utility model aims at prior art's weak point, provide a dismouting instrument of nuclear power blast valve shearing lid for make things convenient for more, steadily tear open/dress to blast valve shearing lid.
The utility model discloses a technical solution measures as follows:
the utility model provides a dismouting instrument of nuclear power blast valve shearing lid for tear open/adorn the shearing lid of blasting valve body, include:
the lifting part forms a lifting connection structure when the connecting piece is lifted;
and the connecting bolt is used for connecting the connecting piece to the shearing cover so as to form a traction connecting structure on the shearing cover.
In the scheme, the connecting piece is connected to the shearing cover, a traction connecting structure which can be used for being connected with a crane is formed on the shearing cover, then the crane drives the connecting piece to move, and further drives the shearing cover to move, and the shearing cover can be detached/assembled. Adopt connecting bolt will the connecting piece is connected on shearing the lid, when guaranteeing that the connecting piece can connect firmly at shearing the lid, also be convenient for right the connecting piece is installed, is dismantled.
Preferably, one side of the connecting piece is used for being connected to the shearing cover in a matching mode, the other side of the connecting piece is provided with a connecting portion, the connecting portion forms a supporting connecting structure, and a counterweight is loaded on the supporting connecting structure to balance the weight of the shearing cover.
Preferably, when the connecting member is connected to the cutting cap, the connecting portion is positioned to be opposite to an axial position of the cutting cap.
Preferably, the connecting part is an integrally formed structure provided on the connecting member.
Preferably, the connecting part is a separate member connected to the connecting part by a screw structure.
Preferably, the connecting portion is provided with a grip portion, and the weight is formed by applying a downward urging force to the grip portion.
Preferably, the connecting part further comprises a weight member, and the weight is formed by mounting a plurality of weight members on the connecting part.
Preferably, the weight member is screwed to the connecting portion.
Preferably, the counterweight device further comprises a limit nut, the limit nut is screwed on the connecting part, and the limit nut and the connecting part jointly form a clamping structure acting on the counterweight.
Preferably, the connecting piece is connected to the shear cover through four connecting bolts, and the four connecting bolts are distributed at equal intervals.
The utility model discloses a main beneficial effect lies in:
1. aiming at the connection structure of the shearing cover on the blasting valve body, a drawable connection structure for disassembly/assembly is detachably formed on the shearing cover through a threaded connection structure, so that a crane can be connected on a connecting piece, and the shearing cover is stably driven to move through the connecting piece.
2. Set up connecting portion, and connecting portion apply the counter weight, can balance the weight of cutting the lid, right when the shearing lid is torn open/dress, can guarantee that the removal of cutting the lid is more steady.
3. The counterweight mode is diversified, and can be selected adaptively.
4. The connecting piece and the connecting part are detachably designed, so that the connecting piece and the connecting part are convenient to carry and store.
Further or more specific advantages will be described in the detailed description in connection with the specific embodiments.
Drawings
The invention will be further explained with reference to the drawings:
fig. 1 is a schematic view of the installation structure of the present invention.
Fig. 2 is a schematic view of an assembly structure of the present invention.
Fig. 3 is a schematic view of another assembly structure of the present invention.
Fig. 4 is a first schematic sectional view of the present invention.
Fig. 5 is a schematic cross-sectional view of the present invention.
Shown in the figure: the device comprises a blasting valve body 1, a shearing cover 2, a connecting piece 3, a hoisting part 301, a connecting part 302, a holding part 3021, a mounting hole 302, a connecting bolt 4, a counterweight 5 and a limiting nut 6.
Detailed Description
The following description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. In addition, the terms "vertical", "horizontal", "front", "back", and the like in the embodiments of the present invention refer to the orientation or positional relationship based on the drawings, or the orientation or positional relationship that the product is conventionally placed when in use, only for convenience of description and simplification of 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 present invention. It is further noted that, unless expressly stated or limited otherwise, terms such as "mounted," "connected," "secured," and the like are intended to be construed broadly, and thus, for example, "connected" may be fixedly, releasably, or integrally connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As an embodiment of the present invention, referring to fig. 1 to 5, a tool for disassembling and assembling a shear cover of a nuclear power explosion valve is used for disassembling/assembling a shear cover 2 of an explosion valve body 1, and specifically, on one hand, the tool is used for disassembling a shear cover 2 which is not disassembled and is still located in the explosion valve body 1 after a connecting screw between the shear cover and the explosion valve body 1 is removed; on the other hand, for mounting the shear cap 2 not mounted in the explosion valve body 1. The disassembly and assembly tool comprises: a connecting piece 3 and a connecting bolt 4, wherein the connecting piece 3 is used for connecting a hoisting device during disassembly/assembly, such as a crane; the connecting bolt 4 is used for connecting the connecting piece 3 to the shearing cover 2 so as to form a traction connecting structure on the shearing cover 2, and the mounting position of the connecting bolt 4 is preferably the screw dismounting position between the blasting valve body 1 and the shearing cover 2. Therefore, the shearing cover 2 is not required to be additionally provided with a connecting structure, and the shearing cover 2 can be stably driven to move by pulling the connecting piece 3 to implement dismounting/mounting operation.
Specifically, in this embodiment, a hoisting portion 301 is disposed on the connecting member 3, the hoisting portion 301 in this embodiment is a hoisting ring structure disposed on the connecting member 3, and the hoisting portion 301 constitutes a hoisting connection structure for hoisting the connecting member 3; specifically, the hoisting part 301 constitutes a connection structure between the connecting member 3 and a hoisting device when the connecting member 3 is hoisted, wherein the hoisting device is preferably a crane or a crane structure, and the connection between the hoisting device and the connecting member 3 is completed by binding and connecting a lifting rope to the hoisting part 301 or hanging a lifting hook to the hoisting part 301.
Specifically, in this embodiment, the connecting bolt 4 adopts a threaded connection structure to connect the connecting member 3 to the shear cover 2, so as to form the traction connection structure; specifically, the method comprises the following steps: the connecting piece 3 is installed and connected on the shearing cover 2, so that a connecting structure which can be used for connecting devices providing traction force such as a crane or a crane and the like is formed on the shearing cover 2, at the moment, a lifting appliance of the crane or the crane is connected on the connecting piece 3, the connecting piece 3 is installed and connected on the shearing cover 2, and the crane or the crane drives the shearing cover 2 to carry out traction movement by acting on the connecting piece 3. Further, in order to ensure the connection stability, the connecting member 3 is connected to the shear cover 2 through four connecting bolts 4 in this embodiment, and the four connecting bolts 4 are distributed at equal intervals.
Preferably, considering that the cutting cover 2 is horizontally installed in the explosion valve body 1, when the cutting cover 2 is directly driven by the connecting piece 3 to move, the cutting cover 2 is inclined, so that a gap between the upper end of the cutting cover 2 and the explosion valve body 1 and a gap between the lower end of the cutting cover 2 and the explosion valve body 1 cannot be kept relatively consistent, and the cutting cover 2 is easily scratched on the explosion valve body 1 in the disassembling and assembling processes. Therefore, in order to enable the shear cap 2 to be more smoothly detached/installed from the explosion valve body 1, in this embodiment, one side of the connecting member 3 is used to be fittingly connected to the shear cap 2, and the other side is provided with a connecting portion 302, and the connecting portion 302 forms a supporting connecting structure, and the supporting connecting structure bears a weight for balancing the weight of the shear cap 2.
Specifically, balancing the weight of the shear cap 2 means: referring to fig. 2, when the connecting member 3 is connected to the shear cover 2 and is lifted and pulled on the lifting part 301 by a crane; since the shear cap 2 has a greater weight, the whole body is inclined downward toward the shear cap 2 side; according to the lever principle, in order to keep the shear cover 2 horizontal in the lifted state, a counterweight needs to be applied to the other side of the lifting part 301, and the counterweight needs to be matched with the weight of the shear cover 2 to balance the weight of the shear cover 2, so that the shear cover 2 is in the lifted state which is horizontal or horizontal as much as possible; of course, when a weight is specifically applied, the position of the hanger 301 and the weight of the connection portion 302 need to be taken into consideration. According to the above description, the weight of the shear cap 2 is balanced, so that the shear cap 2 is kept in a relatively horizontal state during hoisting, the gap between the shear cap 2 and the explosion valve body 1 can be better regulated, and the shear cap 2 can be more stably detached/installed.
Preferably, there are two ways for the support connection structure to bear a weight: in the first mode, a force is manually applied to the connecting part 302 directly to form a counterweight; the second way is to install a weight 5 on the connecting part 302 to form a weight.
Specifically, the first mode is as follows: a grip portion 3021 is provided on the connecting portion 302, and the weight is formed by applying a downward force to the grip portion 3021. In this embodiment, the holding portion 3021 is disposed at an end of the connecting portion 302 away from the connecting member 3, so as to increase a force arm and facilitate application of force to form a weight.
Specifically, the second mode is: a weight member 5 is included, and the weight is formed by mounting a plurality of weight members 5 on the connecting portion 302. In this embodiment, in order to facilitate the installation and removal of the weight member 5, the weight member 5 is screwed to the connecting portion 302, that is, the weight member 5 is connected to the connecting portion 302 through a threaded connection structure, and the connecting portion 302 is preferably a connection screw structure. Further, in order to avoid the deviation of the weight member 5 on the connecting portion 302, a limit nut 6 is further provided in this embodiment, the limit nut 6 is screwed on the connecting portion 302, that is, is connected to the connecting portion 302 through a threaded connection structure, and the limit nut 6 and the connecting member 3 together form a clamping structure acting on the weight member 5.
Preferably, in both the first and second embodiments, in order to balance the weight of the shear cap 2 and avoid a misalignment biasing force, the position of the connecting portion 302 on the link 3 is required in the present embodiment, that is, when the link 3 is connected to the shear cap 2, the position of the connecting portion 302 is preferably aligned with the axial position of the shear cap 2. Specifically, for the connection 302 of a cylindrical structure, the axis thereof is preferably collinear with the central axis of the shear cap 2 of the rotary body.
Preferably, in an actual application process, the connection structure between the connection portion 302 and the connection member 3 may be designed differently according to an application scenario of the attaching and detaching tool. Specifically, when the disassembling and assembling tool is used in a specific workshop environment and does not need to be moved and carried, the connecting part 302 is preferably an integrally formed structure disposed on the connecting part 3; when the disassembling tool needs to be used in different scenes and is required to be carried frequently, the connecting part 302 is preferably an independent component, and the connecting part 302 is connected to the connecting part 3 through a threaded connection structure, so that the assembling and disassembling are convenient.
The utility model discloses in preferred nuclear power blast valve shear cap's assembly and disassembly steps as follows:
s1: removing a fixing bolt (not shown in the figure) between the shearing cover 2 and the blasting valve body 1;
s2: installing the connecting part 302 on the connecting piece 3, connecting the hoisting part 301 with a crane, and driving the connecting piece 3 to move by the crane so as to enable the connecting piece 3 to be opposite to the shearing cover 2;
s3: mounting four coupling bolts 4 by which the coupling member 3 is mounted on the shear cover 2;
s4: applying a weight on the connecting portion 302 to balance the weight of the shear cap 2;
s5: horizontally moving the crane, driving the shear cover 2 to horizontally move through the crane, and slowly detaching the shear cover 2 from the blasting valve body 1; and finishing the dismantling.
The installation process of the shear cap 2 can refer to the above steps and reverse operation, which will not be described in detail herein.
In the description of the present specification, references to the description of the terms "embodiment," "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" or the like are intended to 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 the present invention. In this specification, the schematic representations of the terms used above do not necessarily 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.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a assembly and disassembly tools of nuclear power explosion valve shearing lid for to tearing open/adorn shearing lid (2) of blasting valve body (1), its characterized in that: the method comprises the following steps:
the connecting piece (3) is provided with a hoisting part (301), and the hoisting part (301) forms a hoisting connecting structure when the connecting piece (3) is hoisted;
the connecting bolt (4) is used for connecting the connecting piece (3) on the shearing cover (2) so as to form a traction connecting structure on the shearing cover (2).
2. The tool for disassembling and assembling the shearing cover of the nuclear power explosion valve as recited in claim 1, wherein: one side of the connecting piece (3) is used for being connected to the shearing cover (2) in a matching mode, a connecting portion (302) is arranged on the other side of the connecting piece, the connecting portion (302) forms a supporting connecting structure, and a balance weight is loaded on the supporting connecting structure to balance the weight of the shearing cover (2).
3. The tool for disassembling and assembling the shearing cover of the nuclear power explosion valve as recited in claim 2, wherein: when the connecting piece (3) is connected to the shearing cover (2), the position of the connecting part (302) is opposite to the axis position of the shearing cover (2).
4. The disassembling tool for the shearing cover of the nuclear power explosion valve as recited in claim 3, wherein: the connecting part (302) is an integrally formed structure arranged on the connecting piece (3).
5. The disassembling and assembling tool for the shearing cover of the nuclear power explosion valve as recited in claim 3, wherein: the connecting part (302) is an independent component and is connected to the connecting piece (3) through a thread structure.
6. The tool for disassembling and assembling the shearing cover of the nuclear power explosion valve as recited in any one of claims 2 to 5, wherein: a grip portion (3021) is provided on the connecting portion (302), and the weight is formed by applying a downward force to the grip portion (3021).
7. The tool for disassembling and assembling the shearing cover of the nuclear power explosion valve as recited in any one of claims 2 to 5, wherein: the counterweight is characterized by further comprising a counterweight (5), and the counterweight is formed by mounting a plurality of counterweight (5) on the connecting part (302).
8. The disassembling tool for the shearing cover of the nuclear power explosion valve as recited in claim 7, wherein: the weight piece (5) is in threaded connection with the connecting part (302).
9. The disassembling and assembling tool for the shearing cover of the nuclear power explosion valve as recited in claim 8, wherein: the counterweight device is characterized by further comprising a limit nut (6), wherein the limit nut (6) is in threaded connection with the connecting part (302), and the limit nut (6) and the connecting piece (3) jointly form a clamping structure acting on the counterweight piece (5).
10. The tool for disassembling and assembling the shearing cover of the nuclear power explosion valve as recited in claim 1, wherein: through four connecting bolt (4) will connecting piece (3) are connected on shearing lid (2), and four all be equidistant distribution between connecting bolt (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222072040.XU CN218226450U (en) | 2022-08-08 | 2022-08-08 | Disassembling and assembling tool for shearing cover of nuclear power explosion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222072040.XU CN218226450U (en) | 2022-08-08 | 2022-08-08 | Disassembling and assembling tool for shearing cover of nuclear power explosion valve |
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| Publication Number | Publication Date |
|---|---|
| CN218226450U true CN218226450U (en) | 2023-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222072040.XU Active CN218226450U (en) | 2022-08-08 | 2022-08-08 | Disassembling and assembling tool for shearing cover of nuclear power explosion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218226450U (en) |
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- 2022-08-08 CN CN202222072040.XU patent/CN218226450U/en active Active
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