CN208845549U - Reactor coolant pump bolt tension conversion equipment - Google Patents
Reactor coolant pump bolt tension conversion equipment Download PDFInfo
- Publication number
- CN208845549U CN208845549U CN201821135024.8U CN201821135024U CN208845549U CN 208845549 U CN208845549 U CN 208845549U CN 201821135024 U CN201821135024 U CN 201821135024U CN 208845549 U CN208845549 U CN 208845549U
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- China
- Prior art keywords
- bolt
- nut
- jointing
- waisted
- fixed disk
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Abstract
The utility model relates to a kind of reactor coolant pump bolt tension conversion equipment, the pump shaft (1) of core main pump and lower half a coupler (4) need to be fastened with fixed disk (5) by waisted bolt (2) and nut (3) when installing.Nut (3) installation site is located in the counterbore of fixed disk (5), it needs to be coupled with jointing (6) and notch on nut (3), waisted bolt (2) opens up craft thread and connect with bolt tensioning jack (7), after bolt tensioning jack (7) elongates waisted bolt (2), it is realized to nut (3) by the circular hole on jointing (6) closing, achievees the purpose that installation.The utility model is simple for structure and convenient for disassembly and assembly, strong applicability, and after solving tensile bolt, nut (3) is closing inconvenient problem in counterbore.Similar structures suitable for different magnitude core main pump units.
Description
Technical field: the utility model relates to reactor coolant bolt tension conversion equipments.
Background technique: million millions reactor coolant pump shaft couplings are the key links that core main pump keeps stable operation
One of, play the role of to the safety and reliability that main pump and motor operate in nuclear power station vital.For in shafting
The installation of upper and lower shaft coupling is all made of waisted bolt and the structure of nut connection in fixed disk counterbore.As shown in Fig. 2, fixed disk
Counterbore having a size of φ 52mm, and as shown in figure 4, the outer diameter of nut be 49mm；Conjunction nut is mostly used torque spanner by traditional structure,
Operating space is small, closing difficult and easily scratching counterbore inner face, frequently results in workpiece and scraps and cause economic loss；If cannot be reached closing
It then will affect the stable operation of main pump to defined pretightning force.
Summary of the invention:
The purpose of this utility model is to disclose a kind of installation letter reactor coolant bolt tension succinct, easy to use to turn
Changing device.The technical solution of the utility model is: a kind of reactor coolant pump bolt tension conversion equipment, lower half a coupler
(4) inner cylinder lower part is equipped with pump shaft (1), and fixed disk (5) is fitted on the boss on lower half a coupler (4) inner cylinder top, waisted bolt
(2) counterbore passed through on fixed disk (5) is installed on pump shaft (1), and nut (3) is equipped with waisted bolt (2) and tightens together；Spiral shell
8 uniformly distributed notches are provided on female (3), jointing (6) lower part is evenly equipped with 8 teeth and the notch of nut (3) forms cooperation, on
The circular hole that portion is provided with 8 φ 8mm is used to reverse jointing；Jointing (6) is installed to nut (3) by tooth socket fit
On, bolt tensioning jack passes through the craft thread matched together of jointing (6) and waisted bolt (2).
Utility model works principle: the pump shaft (1) of core main pump and lower half a coupler (4) need to use fixed disk when installing
(5) it is fastened by waisted bolt (2) and nut (3).As shown in figure 3, the installation screw thread of waisted bolt (2) is M30, top is opened up
The craft thread of M20；As shown in figure 4, being provided with 8 uniformly distributed slots on nut (3)；The installation site of nut (3) is located at fixed disk
(5) it in counterbore, needs to be coupled with jointing (6) as shown in Figure 5 and notch on nut (3), waisted bolt (2) is opened
If craft thread is connect with bolt tensioning jack (7), after bolt tensioning jack (7) elongates waisted bolt (2), pass through jointing
(6) circular hole on is realized to nut (3) closing, and achievees the purpose that installation.The utility model can be used for different heap-type core masters
Pump bolt tension device.
The beneficial effects of the utility model are:
(1) notch is opened up on nut, while it is matched to increase toothed jointing, and circle is provided on jointing
Dedicated round bar insertion circular hole torsion can be used to make nut tightening to transmit torque for hole.It does not need to reuse spanner and protrude into counterbore
Nut is tightened, solves the problems, such as that operating space is insufficient, easily scratches workpiece.
(2) it the screw thread of conjunction is M30 that fixed disk counter bore hole diameters, which are φ 52, nut and waisted bolt, in waisted bolt M30 spiral shell
Line upper end opens up the craft thread of M20 again, saves space for installation bolt tensioning jack, while jointing is covered and stretched in screw thread
Outside device, waisted bolt can directly pass through jointing tightening nut after elongating.Not needing demounting bolt stretcher can be achieved with spiral shell
Female installation.
Detailed description of the invention
Fig. 1 is core main pump bolt tension conversion equipment sectional arrangement drawing
Fig. 2 is core main pump fixed disk (5) topology view
Fig. 3 is waisted bolt (2) topology view
Fig. 4 is nut (3) topology view
Fig. 5 is jointing (6) cross-sectional view
Specific embodiment
A kind of reactor coolant pump bolt tension conversion equipment as shown in Figure 1, pump shaft 1 and lower half a coupler 4 are installed
When need to be fastened with fixed disk 5 by waisted bolt 2 and nut 3.As shown in Fig. 2, 5 counterbore of fixed disk is having a size of φ 52mm；Such as
Shown in Fig. 3, the installation screw thread of waisted bolt 2 is M30, and top opens up the craft thread of M20；As shown in figure 4, the outer diameter of nut 3
For 49mm, top is provided with 8 uniformly distributed notches；3 installation site of nut is located in the counterbore of fixed disk 5, needs with jointing 6
It is coupled with notch on nut 3.As shown in figure 5, the notch formation that 6 lower part of jointing is evenly equipped with 8 teeth and nut 3 is matched
It closes, the circular hole that top is provided with 8 φ 8mm is used to reverse jointing.The craft thread and bolt tensioning jack 7 of waisted bolt connect
It connects, after bolt tensioning jack 7 elongates waisted bolt 2, is realized to nut 3 by the circular hole on jointing 6 closing, reached
The purpose of installation.
The utility model is convenient for disassembly and assembly, applied widely, can be used for the different heap-type core masters such as ACP1000MW, CPR1000MW
Pump, and it is convenient for safeguarding, reliable for operation, safe handling degree is high.
Claims (1)
1. a kind of reactor coolant pump bolt tension conversion equipment, it is characterized in that: armored pump is matched in lower half a coupler (4) inner cylinder lower part
Axis (1), fixed disk (5) are fitted on the boss on lower half a coupler (4) inner cylinder top, and waisted bolt (2) passes through on fixed disk (5)
Counterbore be installed on pump shaft (1), nut (3) and waisted bolt (2) are equipped to tighten together；Nut is provided with uniformly distributed 8 on (3)
A notch, jointing (6) lower part is evenly equipped with 8 teeth and the notch of nut (3) forms cooperation, and top is provided with the circle of 8 φ 8mm
Hole is used to reverse jointing；Jointing (6) is installed on nut (3) by tooth socket fit, bolt tensioning jack, which passes through, to be connected
The craft thread matched together of connector (6) and waisted bolt (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821135024.8U CN208845549U (en) | 2018-07-18 | 2018-07-18 | Reactor coolant pump bolt tension conversion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821135024.8U CN208845549U (en) | 2018-07-18 | 2018-07-18 | Reactor coolant pump bolt tension conversion equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208845549U true CN208845549U (en) | 2019-05-10 |
Family
ID=66353318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821135024.8U Active CN208845549U (en) | 2018-07-18 | 2018-07-18 | Reactor coolant pump bolt tension conversion equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208845549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730310A (en) * | 2018-07-18 | 2018-11-02 | 哈尔滨电气动力装备有限公司 | Reactor coolant pump bolt tension conversion equipment |
-
2018
- 2018-07-18 CN CN201821135024.8U patent/CN208845549U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730310A (en) * | 2018-07-18 | 2018-11-02 | 哈尔滨电气动力装备有限公司 | Reactor coolant pump bolt tension conversion equipment |
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