CN205703188U - A kind of bolt tensioning jack nut automatic fastening and backing mechanism - Google Patents
A kind of bolt tensioning jack nut automatic fastening and backing mechanism Download PDFInfo
- Publication number
- CN205703188U CN205703188U CN201620400331.9U CN201620400331U CN205703188U CN 205703188 U CN205703188 U CN 205703188U CN 201620400331 U CN201620400331 U CN 201620400331U CN 205703188 U CN205703188 U CN 205703188U
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- CN
- China
- Prior art keywords
- tensioning jack
- bolt tensioning
- nut
- seat bottom
- support seat
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- Expired - Fee Related
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Abstract
This utility model provides a kind of bolt tensioning jack nut automatic fastening and backing mechanism, including bolt tensioning jack, also include supporting seat bottom lid, it is arranged on and supports the support seat top cover of end on seat bottom lid, it is arranged on the hydraulic motor supporting seat bottom cover ends, No. two axles being connected with hydraulic motor outfan, No. two gears being arranged on No. two axles, it is arranged on the axle supporting seat bottom lid and supporting between seat top cover, the gear being arranged on an axle, No. two gears and a gear engagement, the end of No. two axles is fixed with crank, the seat that supports of bolt tensioning jack is arranged on the other end supporting seat bottom lid, the target nut of bolt tensioning jack is provided with reduction nut spanner, and reduction nut spanner is positioned at the support seat of hydraulic elongator, it is provided with tooth-shape structure on reduction nut spanner, described tooth-shape structure and a gear engagement.This utility model can be saved manual operation, improve work efficiency, auxiliary operation person hydraulic bolt tensioning jack can be made in axial and circumferential flexible motion.
Description
Technical field
This utility model relates to fastening and the dismounting operation of connecting bolt, particularly relates to a kind of bolt tensioning jack nut automatic fastening and backing mechanism, belongs to marine device installing area under water.
Background technology
Nearly ten years, China develops rapidly in terms of Offshore Oil Industry.In order to cost-effective, it is necessary for legacy platform to be maximally utilized.
Along with developing rapidly of CNPC in the last few years and natural gas extraction industry, abundant oil-gas bearing prospect is contained in the particularly sequence of deposition basin of China Seas and vicinity, and offshore oil and gas production platform is built increasing.Many newly-built oil-gas mining platforms are nearly all PROCESS FOR TREATMENT and the oil-gas gathering and transportation systems relying on original platform, this just requires to lay corresponding submarine pipeline and cable on the original basis, and standpipe and the installation of a cable protecting tube and dismounting always technical difficult point, many existing methods are the most not fully up to expectations, for these problems, various mount schemes and pipe clamp design are constantly proposed and are inquired into, and wherein the fastening of pipe clamp bolt uses hydraulic elongator.
The pretension of bolt hydraulic tensioning is the pretension to bolt completed by hydraulic elongator.Hydraulic elongator is a kind of FA tools for bolts ' pretension with novelty and the teardown of engine.Domestic China Nuclear Power Engineering Co., Ltd. discloses a kind of bolt tensioning jack of CN2012205969709, can be with used aloned, it is also possible to packet carries out using (series connection and parallel connection).Multiple stretchers are used in parallel, not only work efficiency is high, but also can ensure that the pretightning force size that multiple bolt bears is almost equally, comparing wide applicability and versatility so having, can use in every field.
Due to the particularity of working condition, traditional stretcher is improved by the design.It is mainly characterized by reset wrench mechanism and contributes to locking in time target nut in drawing process repeatedly, improve installation effectiveness；Automatic rollback function is realized by hydraulic motor operating.
Summary of the invention
The purpose of this utility model is to lock target nut in time, improves installation effectiveness and provides a kind of bolt tensioning jack nut automatic fastening and backing mechanism.
The purpose of this utility model is achieved in that and includes bolt tensioning jack, it is characterized in that: also include supporting seat bottom lid, it is arranged on and supports the support seat top cover of end on seat bottom lid, it is arranged on the hydraulic motor supporting seat bottom cover ends, No. two axles being connected with hydraulic motor outfan, No. two gears being arranged on No. two axles, it is arranged on the axle supporting seat bottom lid and supporting between seat top cover, the gear being arranged on an axle, No. two gears and a gear engagement, the end of No. two axles is fixed with crank, the seat that supports of described bolt tensioning jack is arranged on the other end supporting seat bottom lid, the target nut of bolt tensioning jack is provided with reduction nut spanner, and reduction nut spanner is positioned at the support seat of hydraulic elongator, it is provided with tooth-shape structure on described reduction nut spanner, described tooth-shape structure and a gear engagement.
Compared with prior art, the beneficial effects of the utility model are: this utility model can be saved manual operation, improve work efficiency, uses this clamp device, auxiliary operation person hydraulic bolt tensioning jack can be made in axial and circumferential flexible motion；Reset wrench mechanism of the present utility model contributes to locking in time target nut in drawing process repeatedly, improves retention efficiency；Stroke of the present utility model is big, and once mounting can be repeatedly to target screw rod tightening tension, especially when straining such as backpack clamp fastening part.
Accompanying drawing explanation
Fig. 1 is the structural representation of automatic fastening of the present utility model and backing mechanism；
Fig. 2 is the real work installation diagram of bolt tensioning jack of the present utility model and automatic rollback mechanism；
Top view when Fig. 3 is utility model works.
nullIn figure: 1、Crank，2、Deep groove ball bearing 618/5，3、Support seat top cover，4、Second sleeve，5、No. two gears，6、Key 2x2x8，7、No. two axles，8、3rd sleeve，9、Shaft coupling，10、Bolt M3x20，11、Hydraulic motor，12、A number gear，13、Deep groove ball bearing 618/4，14、First sleeve，15、A number axle，16、Spring washer M5，17、Support seat bottom lid，18、End ring，19、Bolt M3x8，20、Deep groove ball bearing 61814，21、Target nut，22、4th sleeve，23、Reduction nut spanner，24、Support seat，25、Sealing ring 1，26、Sealing ring 2，27、Hoisting nut，28、Piston，29、Oil cylinder，30、A number axle bearing lid，31、Bolt M1.6x3，32、Bolt M3x8，33、Bolt M5x10.
Detailed description of the invention
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, the concrete installation process of this utility model is, first the support seat 24 of stretcher mechanism is fixed on support seat bottom lid 17 by bolt M3x8, support internal need of seat 24 and place reduction nut spanner 23, there is the 4th sleeve 21 between itself and reduction nut spanner 23 and guide effect is provided, between the 4th sleeve 21 and support seat 24 inwall, place two groups of deep groove ball bearings 20 to bear part radial load and axial load.
Fixed supporting by circumferentially distributed screw between seat 24 and oil cylinder 29 the most again, piston 28 is placed at oil cylinder 29 interior grooves, positioned by shoulder between piston 28 and hoisting nut 27, by No. two gears 5 and this group gear pair transmitting movement of gear 12 between No. two axles 7 and reduction nut spanner 23, hydraulic motor 11 is connected by shaft coupling 9 with No. two axles.
Specific works process is, first hoisting nut 27 is screwed in nut, until it contacts with target nut 21, then input hydraulic pressure oil, control piston 28 to move upward, positioned by shoulder, thus drive hoisting nut 27 to move upward, owing to hoisting nut 27 has screwed in bolt and contacts with target nut 21, therefore drive bolt and target nut 21 entirety to move up, then by hydraulic motor 11 work strip moving gear secondary motion, thus reduction nut spanner 23 rotates, target nut 21 is screwed in downwards, until fastening.So far, complete the automatic fastening motion of bolt tensioning jack, otherwise motion then realizes the rollback motion of nut.
Agent structure of the present utility model is mainly made up of hollow hydraulic cylinder, hoisting nut, support seat and base thereof, reduction nut spanner, crank, gear pair etc..
Crank of the present utility model and No. two between centers drive No. two axles to rotate by internal draw-in groove locking, the other end of No. two axles is connected with hydraulic motor also by shaft coupling simultaneously, No. two axles and a between centers are rotated by gear pair, support bottom and be divided into two parts, after gear supporting with it for two axles is positioned over support bottom inside, the two parts supporting bottom are connected by screw fixing, two axial ends portion is all by supporting seat top cover (boiling in a covered pot over a slow fire lid) and deep groove ball bearing sealing, and supports and fixed by screw between a top cover (stewing lid) and support bottom.
This utility model need with existing stretcher with the use of, it it is the general mechanism composition of stretcher on the left of Fig. 2, support and be bolted between seat bottom seat and support seat, support seat to be connected by side screw with oil cylinder, oil cylinder boring places hoisting nut, and hoisting nut places piston with oil cylinder inner wall gap；In order to ensure that ideal nut can be smooth near pedestal after bolt tension, then hoisting nut lower end disposes a reset spanner；In order to bear radial and axial load, place deep groove ball bearing between reset spanner and support seat inside, and play guide effect by sleeve；And reset and be connected by gear pair between spanner with hydraulic motor, it is achieved automatic rollback function.
In the course of the work, it uses location pedestal to be positioned by stretcher, behind location, hoisting nut is screwed in bolt, until hoisting nut contacts with target nut, is reached fixing purpose by controlling hydraulic cylinder hoisting nut drive bolt.Last hydraulic motor driven gear coordinates, and location base interior reset spanner rotates, target nut is near to metallic plate rotation, it is achieved to automatically reset, meanwhile, in order to preferably control precession speed, it would however also be possible to employ crank manually resets.
This utility model relates generally to fastening and the dismounting operation of connecting bolt in large ocean device, belongs to marine device installing area under water.Specific design is its automatic fastening of bolt tensioning jack connected and backing mechanism, complete auto-reset function, avoid traditional structure to splice under water, para-position, fastening difficult problem, reduce risk under water, reduce underwater performance mating operation amount, seek a kind of light type of attachment, the problem solving to install and dismantle difficulty under water.
Claims (1)
1. bolt tensioning jack nut automatic fastening and a backing mechanism, including bolt tensioning jack, it is characterised in that: also include propping up
Support seat bottom lid, be arranged on the support seat top cover of end on support seat bottom lid, the hydraulic motor being arranged on support seat bottom cover ends and liquid
Pressure motor outfan connect No. two axles, No. two gears being arranged on No. two axles, be arranged on support seat bottom lid with support seat top cover
Between an axle, a gear being arranged on an axle, No. two gears and a gear engagement, the end of No. two axles is connected
Having crank, the seat that supports of described bolt tensioning jack is arranged on the other end supporting seat bottom lid, on the target nut of bolt tensioning jack
It is provided with reduction nut spanner, and reduction nut spanner is positioned at the support seat of hydraulic elongator, and described reduction nut spanner sets
It is equipped with tooth-shape structure, described tooth-shape structure and a gear engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620400331.9U CN205703188U (en) | 2016-05-05 | 2016-05-05 | A kind of bolt tensioning jack nut automatic fastening and backing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620400331.9U CN205703188U (en) | 2016-05-05 | 2016-05-05 | A kind of bolt tensioning jack nut automatic fastening and backing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205703188U true CN205703188U (en) | 2016-11-23 |
Family
ID=57303759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620400331.9U Expired - Fee Related CN205703188U (en) | 2016-05-05 | 2016-05-05 | A kind of bolt tensioning jack nut automatic fastening and backing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205703188U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750897A (en) * | 2016-05-05 | 2016-07-13 | 哈尔滨工程大学 | Automatic nut tightening and returning mechanism with bolt stretching machine |
| CN109333430A (en) * | 2018-11-30 | 2019-02-15 | 安庆市睿霞机械有限公司 | A kind of hydraulic bolt tightening device |
| WO2021093112A1 (en) * | 2019-11-14 | 2021-05-20 | 四川腾菲克科技有限公司 | Bolt tightening method and bolt tightening system |
-
2016
- 2016-05-05 CN CN201620400331.9U patent/CN205703188U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750897A (en) * | 2016-05-05 | 2016-07-13 | 哈尔滨工程大学 | Automatic nut tightening and returning mechanism with bolt stretching machine |
| CN109333430A (en) * | 2018-11-30 | 2019-02-15 | 安庆市睿霞机械有限公司 | A kind of hydraulic bolt tightening device |
| WO2021093112A1 (en) * | 2019-11-14 | 2021-05-20 | 四川腾菲克科技有限公司 | Bolt tightening method and bolt tightening system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 |