CN207824799U - The quick plug-in for being exclusively used in nuclear pressure container flange bolt stretcher stretches nut - Google Patents
The quick plug-in for being exclusively used in nuclear pressure container flange bolt stretcher stretches nut Download PDFInfo
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- CN207824799U CN207824799U CN201820223651.0U CN201820223651U CN207824799U CN 207824799 U CN207824799 U CN 207824799U CN 201820223651 U CN201820223651 U CN 201820223651U CN 207824799 U CN207824799 U CN 207824799U
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- nut
- stretching
- pressure container
- conical surface
- exclusively used
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Abstract
The utility model is related to be exclusively used in the quick plug-in of nuclear pressure container flange bolt stretcher to stretch nut, belong to nuclear power generating equipment technical field.Main technical schemes are as follows：Including conical surface sleeve, it is slidably connected with stretching nut on the inside of the conical surface sleeve, the interior side-lower fixed locating stud of the conical surface sleeve, the stretching nut top is rigidly connected with limited block, the stretching nut is that more valves stretch nut, passes through connection pin connection between the stretching nut.The stretching nut is that pintongs stretches nut.The utility model provides a kind of quick plug-in stretching nut being exclusively used in nuclear pressure container flange bolt stretcher, kingbolt quickly can be clamped and be taken out by it, it avoids the screw thread time of rotation in the prior art length, be easily damaged the problem of screw thread, it is short that pintongs stretches the nut clamping time, and easy to process, use easy to produce.
Description
Technical field
The utility model belongs to nuclear power generating equipment technical field, is specially exclusively used in nuclear pressure container flange bolt stretcher
Quick plug-in stretch nut.
Background technology
Currently, the kingbolt of nuclear pressure container flange and the connection type of bolt tensioning jack, that is, stretch nut and main spiral shell
Bolt is connected mainly by being threadedly coupled, and with the raising of safety coefficient, bolt quantity is more and more, revolves the time of screw thread increasingly
It is long, the time of operating personnel's raying is increased, thread, therefore the drawing that this rotation is threadedly coupled also are easily damaged in rotary course
It stretches nut and has been unable to meet requirement.
Utility model content
When generating rotation screw thread to solve to be threadedly coupled between existing nuclear pressure container kingbolt and bolt tensioning jack
Between it is long and the problem of be easily damaged screw thread, the utility model offer is exclusively used in the quick of nuclear pressure container flange bolt stretcher
Plug-in stretches nut.The technical solution of the utility model is as follows：
The quick plug-in for being exclusively used in nuclear pressure container flange bolt stretcher stretches nut, including conical surface sleeve, institute
It is slidably connected with stretching nut on the inside of the conical surface sleeve stated, the interior side-lower fixed locating stud of the conical surface sleeve, the drawing
It stretches and is rigidly connected with limited block above nut, the stretching nut is that more valves stretch nut, is led between the stretching nut
Cross connection pin connection.
Further, the stretching nut is that pintongs stretches nut.
Further, the stretching nut is that five valves stretch nut.
The beneficial effects of the utility model are as follows：The utility model provides one kind and being exclusively used in nuclear pressure container flange spiral shell
The quick plug-in of bolt stretcher stretches nut, can quickly kingbolt is clamped and be taken out, avoided and revolve in the prior art
The screw thread time is long, is easily damaged the problem of screw thread, and the pintongs stretching nut clamping time is short and easy to process, use easy to produce.
Description of the drawings
Fig. 1 is the quick plug-in stretching nut that the utility model is exclusively used in nuclear pressure container flange bolt stretcher
Use state sectional view.
Wherein：1, cylinder body, 2, piston, 3, kingbolt, 4, spring, 5, gasket, 6, positioning pin, 7, connecting pin, 8, stretch spiral shell
Mother, 9, limited block, 10, conical surface sleeve.
Specific implementation mode
The utility model is described further With reference to embodiment：
As shown in Figure 1, the quick plug-in for being exclusively used in nuclear pressure container flange bolt stretcher stretches nut, including cone
Surface sleeve 10,10 inside of conical surface sleeve are slidably connected with nut 8 is stretched, and the interior side-lower of the conical surface sleeve 10 is fixed
Positioning pin 6,8 top of stretching nut are rigidly connected with limited block 9, and the stretching nut 8 is that more valves stretch nut, institute
It is connected by connecting pin 7 between the stretching nut 8 stated.The stretching nut 8 is that pintongs stretches nut.
When the utility model is used, quick plug-in stretching nut is integrally placed on pedestal, 10 lower section of conical surface sleeve
Contact pins 5, pintongs stretch nut and are placed in the gap between kingbolt 3 and piston 2, use hydraulic pressure, pneumatic or side manually
Formula pulls down conical surface sleeve 10, since the joint face that 10 inside of conical surface sleeve stretches nut with pintongs is the conical surface, is mounted on
The positioning pin 6 of 10 inside of conical surface sleeve can be such that pintongs stretching nut mutually gathers downwards along the direction of the conical surface, allow in this way
Kingbolt 3 stretches nut holding card simultaneously with pintongs, and pintongs stretches nut and is clamped with 3 screw thread of kingbolt by the buffering of spring 4, and
Do not destroy thread.
After stretching terminates, conical surface sleeve 10 is pulled upwardly using hydraulic pressure, pneumatic or manual mode, due to conical surface set
The joint face that 10 inside of cylinder stretches nut with pintongs is the conical surface, and the positioning pin 6 for being mounted on 10 inside of conical surface sleeve can be along the conical surface
Direction make pintongs stretch nut upwards to be separated from each other generation radial displacement, allow for kingbolt 3 and pintongs in this way and stretch nut
It is separated from.
Pintongs is connected between stretching nut by connecting pin 7, nut, so that it is generated radial displacement and is unlikely to completely disengage out.
The inside of piston 2 stretches nut with pintongs certain gap, ensure that axial direction during being clamped or being detached from kingbolt 3 and
Accuracy.The clamping time that three valves of comparison, pintongs, five valves and six valves are analyzed by calculating, when three-clove style stretches the clamping of nut
Between it is obviously more than the clamping time of pintongs, five valves and six valves, and pintongs, five valves and six flap-type stretch the clamping time phase difference of nut
Seldom, valve number more multi-processing difficulty is higher, and error is bigger, and final choice pintongs, which stretches nut, precisely can quickly snap fit onto master
On bolt 3, and the screw thread of kingbolt 3 is not destroyed.
After hydraulic pump exports 150MPa ultrahigh-pressure hydraulic oil, piston 2 jacks, and pintongs is made to stretch nut and kingbolt 3 simultaneously
Jacking is played the role of stretching kingbolt 3.
Claims (3)
1. the quick plug-in for being exclusively used in nuclear pressure container flange bolt stretcher stretches nut, which is characterized in that including cone
Surface sleeve (10), the conical surface sleeve (10) inside are slidably connected with nut (8) is stretched, the inside of the conical surface sleeve (10)
Lower section fixed locating stud (6), the stretching nut (8) top are rigidly connected with limited block (9), the stretching nut (8)
Nut is stretched for more valves, is connected by connecting pin (7) between the stretching nut (8).
2. the quick plug-in as described in claim 1 for being exclusively used in nuclear pressure container flange bolt stretcher stretches nut,
It is characterized in that, the stretching nut (8), which is pintongs, stretches nut.
3. the quick plug-in as described in claim 1 for being exclusively used in nuclear pressure container flange bolt stretcher stretches nut,
It is characterized in that, the stretching nut (8), which is five valves, stretches nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820223651.0U CN207824799U (en) | 2018-02-08 | 2018-02-08 | The quick plug-in for being exclusively used in nuclear pressure container flange bolt stretcher stretches nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820223651.0U CN207824799U (en) | 2018-02-08 | 2018-02-08 | The quick plug-in for being exclusively used in nuclear pressure container flange bolt stretcher stretches nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207824799U true CN207824799U (en) | 2018-09-07 |
Family
ID=63397550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820223651.0U Active CN207824799U (en) | 2018-02-08 | 2018-02-08 | The quick plug-in for being exclusively used in nuclear pressure container flange bolt stretcher stretches nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207824799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083490A (en) * | 2022-01-25 | 2022-02-25 | 江苏华恩机械科技有限公司 | Hydraulic stretcher with intelligent calibration function and method thereof |
-
2018
- 2018-02-08 CN CN201820223651.0U patent/CN207824799U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083490A (en) * | 2022-01-25 | 2022-02-25 | 江苏华恩机械科技有限公司 | Hydraulic stretcher with intelligent calibration function and method thereof |
| CN114083490B (en) * | 2022-01-25 | 2022-04-12 | 江苏华恩机械科技有限公司 | Hydraulic stretcher with intelligent calibration function and method thereof |
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