CN202402435U - Bolt-nut structure for high-temperature high-pressure shielding electric pump - Google Patents
Bolt-nut structure for high-temperature high-pressure shielding electric pump Download PDFInfo
- Publication number
- CN202402435U CN202402435U CN2011205530824U CN201120553082U CN202402435U CN 202402435 U CN202402435 U CN 202402435U CN 2011205530824 U CN2011205530824 U CN 2011205530824U CN 201120553082 U CN201120553082 U CN 201120553082U CN 202402435 U CN202402435 U CN 202402435U
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- China
- Prior art keywords
- bolt
- nut
- hole
- pump
- stator flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a bolt-nut structure for a high-temperature high-pressure shielding electric pump. The bolt-nut structure consists of a screw cap, a nut, a sleeve, a long bolt, a stator flange, a through hole, a sealing ring and a pump body. The screw cap and the nut are screwed on the long bolt; the through hole is formed in the long bolt; the long bolt is arranged in the sleeve, penetrates through the stator flange and is arranged on the pump body; and the sealing ring is arranged between the stator flange and the pump body. The bolt-nut structure is simple in structure and reasonable in design and adopts a bolt lengthened structure; the through hole is drilled in the center of the bolt, the lengthened bolt can ensure that the deformation of the bolt is in an elastic limit when the temperature rises and drops; and the through hole in the middle can be used for measuring the elongation of the bolt, and through measurement, the pre-tightening force of the bolt can be accurately calculated, so that uniform pre-tightening under large pre-tightening force can be realized, and the reliability of the high-temperature high-pressure shielding electric pump is improved.
Description
Technical field
The utility model relates to a kind of bolt nut structure that is used for the HTHP shielded electric-pump.
Background technique
The sealing reliability of HTHP shielded electric-pump is had relatively high expectations; Increase day by day along with HTHP shielded electric-pump number of applications; Temperature, pressure are increasingly high, need further to improve sealing pretightening force and long term reliability, and make pretightening force be convenient to apply and detect.The bolt that existing HTHP shielded electric-pump is used is difficult to realize the even pretension of bolt owing to can't accurately measure the amount of deformation of bolt, therefore, can cause poorly sealedly, even causes that medium reveals.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned shortcoming; A kind of bolt nut structure that is used for the HTHP shielded electric-pump is provided; It has mainly solved the bolt that existing HTHP shielded electric-pump uses owing to can't accurately measure the amount of deformation of bolt, is difficult to realize the problems such as even pretension of bolt.The purpose of the utility model be achieved in that a kind of bolt nut structure that is used for the HTHP shielded electric-pump by: nut, nut, sleeve, stay bolt, stator flange, through hole, seal ring, the pump housing constitute.Nut, nut are screwedly mounted on the stay bolt, are provided with through hole in the stay bolt, and stay bolt is contained in the sleeve, and pass the stator flange and be installed on the pump housing, and seal ring is installed between the stator flange and the pump housing.This product structure is simple; Reasonable in design, it adopts the bolt elongate structure and is drilled with through hole at the bolt center, and the bolt of lengthening can make bolt when heating and cooling deformation is in elastic limit; Middle through hole can be measured the elongation of bolt; Through measuring the pretightening force that can calculate bolt more accurately, can realize even pretension under the big pretightening force, improved the reliability of HTHP shielded electric-pump.
Description of drawings
Accompanying drawing is a kind of structural representation that is used for the bolt nut structure of HTHP shielded electric-pump of the utility model.
1-nut 2-nut 3-sleeve 4-stay bolt 5-stator flange
The 6-through hole 7-seal ring 8-pump housing
Embodiment
Specify the most preferred embodiment of the utility model below in conjunction with accompanying drawing, a kind of bolt nut structure that is used for the HTHP shielded electric-pump by: nut 1, nut 2, sleeve 3, stay bolt 4, stator flange 5, through hole 6, seal ring 7, the pump housing 8 constitute.Nut 1, nut 2 are screwedly mounted on the stay bolt 4, are provided with through hole 6 in the stay bolt 4, and stay bolt 4 is contained in the sleeve 3, and pass stator flange 5 and be installed on the pump housing 8, and seal ring 7 is installed between the stator flange 5 and the pump housing 8.
Claims (1)
1. bolt nut structure that is used for the HTHP shielded electric-pump; It is made up of: nut (1), nut (2), sleeve (3), stay bolt (4), stator flange (5), through hole (6), seal ring (7), the pump housing (8); It is characterized in that: nut (1), nut (2) are screwedly mounted on the stay bolt (4), are provided with through hole (6) in the stay bolt (4), and stay bolt (4) is contained in the sleeve (3); And pass stator flange (5) and be installed on the pump housing (8), seal ring (7) is installed between the stator flange (5) and the pump housing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205530824U CN202402435U (en) | 2011-12-27 | 2011-12-27 | Bolt-nut structure for high-temperature high-pressure shielding electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205530824U CN202402435U (en) | 2011-12-27 | 2011-12-27 | Bolt-nut structure for high-temperature high-pressure shielding electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202402435U true CN202402435U (en) | 2012-08-29 |
Family
ID=46700085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205530824U Expired - Lifetime CN202402435U (en) | 2011-12-27 | 2011-12-27 | Bolt-nut structure for high-temperature high-pressure shielding electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202402435U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141667A (en) * | 2013-05-07 | 2014-11-12 | 中国北车集团大同电力机车有限责任公司 | Thread connection elastic sleeve and thread connection structure |
| CN108361202A (en) * | 2018-03-12 | 2018-08-03 | 浙江同心力机电科技有限公司 | A kind of self priming centrifugal pump |
| CN112850492A (en) * | 2021-02-05 | 2021-05-28 | 华南理工大学 | Monitoring control system for luffing halter anti-drop bolt of movable arm tower crane |
| CN115962145A (en) * | 2022-12-21 | 2023-04-14 | 佳木斯电机股份有限公司 | Pressure-bearing sealing gasket dismounting protection structure |
-
2011
- 2011-12-27 CN CN2011205530824U patent/CN202402435U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141667A (en) * | 2013-05-07 | 2014-11-12 | 中国北车集团大同电力机车有限责任公司 | Thread connection elastic sleeve and thread connection structure |
| CN108361202A (en) * | 2018-03-12 | 2018-08-03 | 浙江同心力机电科技有限公司 | A kind of self priming centrifugal pump |
| CN112850492A (en) * | 2021-02-05 | 2021-05-28 | 华南理工大学 | Monitoring control system for luffing halter anti-drop bolt of movable arm tower crane |
| CN115962145A (en) * | 2022-12-21 | 2023-04-14 | 佳木斯电机股份有限公司 | Pressure-bearing sealing gasket dismounting protection structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |