CN217776890U - A broken instrument of tearing open for nuclear power main pump seal chamber bolt - Google Patents
A broken instrument of tearing open for nuclear power main pump seal chamber bolt Download PDFInfo
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- CN217776890U CN217776890U CN202221588806.3U CN202221588806U CN217776890U CN 217776890 U CN217776890 U CN 217776890U CN 202221588806 U CN202221588806 U CN 202221588806U CN 217776890 U CN217776890 U CN 217776890U
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Abstract
The utility model provides a break-in tool for a nuclear power main pump seal chamber bolt, which comprises a fixing part, a fixing platform, an adjusting part and a break-in part; the lower part of the fixing platform is provided with a plurality of fixing parts, the fixing parts are arranged at the top of the main pump sealing chamber corresponding to the main pump sealing chamber bolt holes, the adjusting parts are sleeved outside the fixing parts, the bottom ends of the adjusting parts are attached to the upper side of the main pump sealing chamber, the upper ends of the adjusting parts are attached to the bottom of the fixing platform, and the breaking and dismantling parts are arranged at the middle position of the fixing platform corresponding to the main pump sealing chamber bolts; the fixing part is used for being embedded into a bolt hole of the sealing chamber of the main pump to fix the fixing platform; the fixing platform is used for fixing the breaking and dismantling part; the adjusting part is used for adjusting the height of the fixed platform; the breaking-in part is used for breaking-in the main pump seal chamber bolt. The utility model discloses control magnetic drill tool bit turning volume guarantees to implement the precision, avoids destroying the main pump seal chamber.
Description
Technical Field
The utility model relates to a broken instrument technical field of tearing open of nuclear power main pump seal chamber bolt especially relates to a broken instrument of tearing open for nuclear power main pump seal chamber bolt.
Background
The joint surface of the main pump heat shield flange and the sealing chamber adopts a static sealing technology, a basic wound gasket formed by spirally winding a stainless steel strip subjected to special heat treatment and graphite is used for sealing, and 16 sealing chamber bolts are uniformly distributed in the circumferential direction for fastening. The main pump seal chamber bolt is a rolled thread, the length of the thread is completely screwed in, and the main pump seal chamber bolt is integrally forged by alloy steel.
During the period of nuclear power unit refueling overhaul, the problem of seal chamber bolt jamming often occurs in the process of replacing ball bearings and mechanical sealing of a main pump set. Because the position is a loop pressure boundary, irreversible damage to a main pump sealing chamber and a heat shield flange can be caused by using a common broken wire taking means, so that great economic loss is caused, and a great deal of great risks such as industrial safety, radiation protection, foreign matter prevention, great equipment damage and the like are faced in the breaking and dismantling work. It is necessary to develop a special tool for breaking and disassembling the related bolt aiming at the problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a brokenly tear instrument open for nuclear power main pump seal chamber bolt, solve and to cause irreversible damage, cause great economic loss's technical problem to main pump seal chamber and heat shield flange now.
In one aspect, a break-in tool for a nuclear power main pump seal chamber bolt is provided, comprising:
the fixing part, the fixing platform, the adjusting part and the breaking and dismantling part;
the lower part of the fixing platform is provided with a plurality of fixing parts, the fixing parts are arranged at the top of the main pump sealing chamber corresponding to the main pump sealing chamber bolt holes, the adjusting parts are sleeved outside the fixing parts, the bottom ends of the adjusting parts are attached to the upper side of the main pump sealing chamber, the upper ends of the adjusting parts are attached to the bottom of the fixing platform, and the breaking and dismantling parts are arranged at the middle position of the fixing platform corresponding to the main pump sealing chamber bolts;
the fixing part is used for being embedded into the bolt hole of the sealing chamber of the main pump to fix the fixing platform; the fixing platform is used for fixing the breaking and dismantling part; the adjusting part is used for adjusting the height of the fixed platform; the breaking-in part is used for breaking-in the main pump seal chamber bolt.
Preferably, the fixing part comprises a fixing screw, a fixing nut and a fixing bolt, the fixing screw, the fixing nut and the fixing bolt are sequentially arranged between the fixing platform and the main pump sealing chamber bolt from top to bottom, and the fixing screw and the fixing nut are arranged on the upper surface of the fixing platform and connected with the top of the fixing bolt.
Preferably, the bottom of the fixing bolt is embedded in the main pump seal chamber bolt hole, and the top of the fixing bolt passes through the fixing platform.
Preferably, the fixing nut is fixed on the top of the fixing bolt, so as to fix the fixing platform on the fixing bolt.
Preferably, the fixing screw penetrates through the fixing nut and the fixing platform, and the lower end of the fixing screw is embedded into the top of the fixing bolt.
Preferably, the fixed platform is plate-shaped, fixing holes are formed in two sides of the fixed platform and used for being embedded into the fixing bolts, and a U-shaped opening is formed in one side of the middle of the fixed platform.
Preferably, the adjusting part is in a hollow column shape, the adjusting part is detachably arranged between the fixed platform and the main pump sealing chamber, and the adjusting part is penetrated by the fixed screw rod.
Preferably, the forcible entry part is detachably fixed on the upper surface of the fixed platform, and the forcible entry part is adjacently arranged on one side of the U-shaped opening.
To sum up, implement the utility model discloses an embodiment has following beneficial effect:
the utility model provides a brokenly tear instrument open for nuclear power main pump seal chamber bolt provides convenient viewing condition for the operation personnel, is favorable to controlling magnetic drill tool bit turning volume, guarantees to implement the precision, avoids main pump seal chamber and main pump heat shield flange to be destroyed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and 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 obtained from these drawings still belong to the scope of the present invention without inventive laboriousness.
Fig. 1 is a schematic diagram of a break-in tool for a nuclear power main pump seal chamber bolt in an embodiment of the present invention.
Fig. 2 is a schematic view of the fixing bolt according to the embodiment of the present invention.
Fig. 3 is a schematic view of a fixing platform according to an embodiment of the present invention.
Fig. 4 is a schematic view of a fixing platform according to an embodiment of the present invention.
Fig. 5 is a schematic view of the breaking-in portion in the embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1, it is a schematic diagram of an embodiment of a breaking-in tool for a nuclear power main pump seal chamber bolt provided by the present invention. In this embodiment, the break-in tool for the nuclear power main pump seal chamber bolt comprises:
the device comprises a fixed part 1, a fixed platform 2, an adjusting part 3 and a breaking and dismantling part 4;
the fixing platform 2 is provided with a plurality of fixing parts 1 at the lower part, the fixing parts 1 are arranged at the top of the main pump seal chamber 6 corresponding to the main pump seal chamber bolt 7 holes, the adjusting part 3 is sleeved outside the fixing parts 1, the bottom end of the adjusting part 3 is attached to the upper side of the main pump seal chamber 6, the upper end of the adjusting part 3 is attached to the bottom of the fixing platform 2, and the breaking and dismantling part 4 is arranged at the middle position of the fixing platform 2 corresponding to the main pump seal chamber bolt 7; the fixing part 1 is used for embedding a bolt 7 hole of the seal chamber of the main pump into the hole to fix the fixing platform 2; the fixing platform 2 is used for fixing the breaking and dismantling part 4; the adjusting part 3 is used for adjusting the height of the fixed platform 2; the breaking and dismantling part 4 is used for breaking and dismantling the main pump seal chamber bolt 7.
In this embodiment, the fixing portion 1 includes a fixing screw, a fixing nut, and a fixing bolt, the fixing screw, the fixing nut, and the fixing bolt are sequentially disposed between the fixing platform 2 and the main pump seal chamber bolt 7 from top to bottom, and the fixing screw and the fixing nut are disposed on the upper surface of the fixing platform 2 and connected to the top of the fixing bolt. The bottom of the fixing bolt is embedded into a bolt hole 7 of the sealing chamber of the main pump, and the top of the fixing bolt penetrates through the fixing platform 2. The fixing nut is fixed on the top of the fixing bolt, and the fixing platform 2 is fixed on the fixing bolt. The fixing screw penetrates through the fixing nut and the fixing platform 2, and the lower end of the fixing screw is embedded into the top of the fixing bolt. That is, as shown in fig. 2, the front end of the fixing bolt is provided with a screwed plug hole, the middle section of the bolt is of a polished rod structure, and the tail part of the bolt is of a threaded structure and can be screwed into a bolt hole of the sealing chamber.
In this embodiment, as shown in fig. 3 and 4, the fixing platform 2 is plate-shaped, fixing holes are formed in two sides of the fixing platform 2, the fixing holes are used for embedding the fixing bolts, and a U-shaped opening is formed in one side of the middle of the fixing platform 2. That is, two specifications are used for the broken upper end nut, the broken screw and the thread.
In this embodiment, the adjusting portion 3 is a hollow column, the adjusting portion 3 is detachably disposed between the fixed platform 2 and the main pump sealing chamber 6, and the adjusting portion 3 is penetrated by the fixing screw. That is, the structure is a hollow cylinder, and the height of the tool platform is adjusted by replacing the equal-height blocks with different heights, so that the breaking-in part 4 is located at an operation position with a proper height. And a cushion block 5 can be arranged for assisting in adjusting the height of the tool platform.
In this embodiment, as shown in fig. 5, the breaking-in portion 4 is detachably fixed on the upper surface of the fixed platform 2, and the breaking-in portion 4 is adjacently disposed on one side of the U-shaped opening.
The use of the tool is divided into two stages. The first stage is as follows: a special tool is erected at the flange of the sealing chamber 6. The working heights of the fixing platform 2 and the breaking-in part 4 are adjusted by selecting the adjusting part 3 with the height equal to 63mm and the cushion block 5, the fixing is carried out by utilizing a through bolt, and the special tool and the sealing chamber 6 are fixed through the fixing part 1. And fixing the forcible entry part 4 at the corresponding position of the tooling platform, and performing forcible entry on the bolt and nut part 7 of the clamping and sealing chamber by using the forcible entry part 4. And a second stage: and (4) lifting the flange of the sealed chamber 6 after removing the nut part of the flange bolt of the sealed chamber 6. The working heights of the fixing platform 2 and the breaking-in part 4 are adjusted by selecting the 100mm height adjusting part 3 and the cushion block 5, the fixing is carried out by utilizing through bolts, and the special tool and the heat shield flange are fixed in position by the fixing part 1. And fixing the forcible entry part 4 at a corresponding position of the tool platform, and forcible entry of the bolt screw and the threaded part of the clamping sealing chamber by using the forcible entry part 4.
To sum up, implement the utility model discloses an embodiment has following beneficial effect:
the utility model provides a brokenly tear instrument open for nuclear power main pump seal chamber bolt provides convenient viewing condition for the operation personnel, is favorable to controlling magnetic drill tool bit turning volume, guarantees to implement the precision, avoids main pump seal chamber and main pump heat shield flange to be destroyed.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, therefore, all equivalent variations of the present invention are intended to be covered by the present invention.
Claims (8)
1. The utility model provides a brokenly tear instrument open for nuclear power main pump seal chamber bolt which characterized in that includes:
the fixing part, the fixing platform, the adjusting part and the breaking and dismantling part;
the lower part of the fixing platform is provided with a plurality of fixing parts, the fixing parts are arranged at the top of the main pump sealing chamber corresponding to the main pump sealing chamber bolt holes, the adjusting parts are sleeved outside the fixing parts, the bottom ends of the adjusting parts are attached to the upper side of the main pump sealing chamber, the upper ends of the adjusting parts are attached to the bottom of the fixing platform, and the breaking-in parts are arranged at the middle position of the fixing platform corresponding to the main pump sealing chamber bolt holes;
the fixing part is embedded into a bolt hole of the seal chamber of the main pump to fix the fixing platform; the fixing platform is used for fixing the breaking and dismantling part; the adjusting part is used for adjusting the height of the fixed platform; the breaking and dismantling part is used for breaking and dismantling the main pump seal chamber bolt.
2. The break-in tool for bolts of nuclear power main pump seal chambers according to claim 1, wherein the fixing portion comprises a fixing screw, a fixing nut and a fixing bolt, the fixing screw, the fixing nut and the fixing bolt are sequentially arranged between the fixing platform and the bolts of the main pump seal chambers from top to bottom, and the fixing screw and the fixing nut are arranged on the upper surface of the fixing platform and connected with the tops of the fixing bolts.
3. The break-in tool for nuclear power main pump seal chamber bolts of claim 2, wherein the bottom of the fixing bolt is embedded in the main pump seal chamber bolt hole, and the top of the fixing bolt passes through the fixing platform.
4. The tool of claim 3, wherein the retaining nut is secured to the top of the retaining bolt to secure the mounting platform to the retaining bolt.
5. The break-in tool for the bolts of the seal chamber of the nuclear power main pump of claim 4, wherein the fixing screw penetrates through the fixing nut and the fixing platform, and the lower end of the fixing screw is embedded into the top of the fixing bolt.
6. The tool for breaking open bolts of a nuclear power main pump seal chamber of claim 5, wherein the fixing platform is plate-shaped, fixing holes are formed in two sides of the fixing platform and used for being embedded in the fixing bolts, and a U-shaped opening is formed in one side of the middle of the fixing platform.
7. The tool of claim 6, wherein the adjusting portion is hollow and cylindrical, the adjusting portion is detachably disposed between the fixing platform and the main pump seal chamber, and the adjusting portion is penetrated by the fixing screw.
8. The tool of claim 7, wherein the breaking-in portion is detachably fixed to the upper surface of the fixed platform, and the breaking-in portion is adjacently disposed on one side of the U-shaped opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221588806.3U CN217776890U (en) | 2022-06-23 | 2022-06-23 | A broken instrument of tearing open for nuclear power main pump seal chamber bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221588806.3U CN217776890U (en) | 2022-06-23 | 2022-06-23 | A broken instrument of tearing open for nuclear power main pump seal chamber bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217776890U true CN217776890U (en) | 2022-11-11 |
Family
ID=83936117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221588806.3U Active CN217776890U (en) | 2022-06-23 | 2022-06-23 | A broken instrument of tearing open for nuclear power main pump seal chamber bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217776890U (en) |
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2022
- 2022-06-23 CN CN202221588806.3U patent/CN217776890U/en active Active
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