CN202545517U - Bolt tensioner nut - Google Patents
Bolt tensioner nut Download PDFInfo
- Publication number
- CN202545517U CN202545517U CN2012201295016U CN201220129501U CN202545517U CN 202545517 U CN202545517 U CN 202545517U CN 2012201295016 U CN2012201295016 U CN 2012201295016U CN 201220129501 U CN201220129501 U CN 201220129501U CN 202545517 U CN202545517 U CN 202545517U
- Authority
- CN
- China
- Prior art keywords
- nut
- bolt
- tensioning jack
- bolt tensioning
- bolt tensioner
- 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 - Fee Related
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The utility model discloses a bolt tensioner nut. The bolt tensioner nut comprises a cylindrical part and a hexangular head part positioned on the lower part of the cylindrical part, wherein one or more shifting holes are distributed uniformly on the circumference of the side face of the cylindrical part. The bolt tensioner nut is suitable for a bolt tensioner, and adapts to the disassembling and assembly of an ordinary bolt assembly and disassembly tool, so that the problem of incapability of assembling and disassembling a circular nut with an ordinary bolt assembly and disassembly tool without a bolt tensioner is solved, and the problem of incapability of assembling and disassembling an ordinary hexagonal nut with a bolt tensioner under the condition that the bolt tensioner cannot be used for tightening without a tool, the installation position is tense and a tool position does not exist is solved.
Description
Technical field
The utility model relates to the nut field, particularly a kind of bolt tensioning jack nut.
Background technique
At present the bigger bolt on the big-block engine connects the general bolt tensioning jack that adopts and tightens, this method tightens no torsional shear and lateral force, to the surface of contact not damaged of connection, can tighten, tighten the efficient height simultaneously by a plurality of bolts.
Bolt tensioning jack generally is made up of oil hydraulic pump, high pressure hose, pressure gauge and extrusion.Wherein oil hydraulic pump is a power source, the delivery pressure of pressure gauge reflected pump, and high pressure hose connects oil hydraulic pump and extrusion.Extrusion is to realize the executive component of bolt tension.Mainly form by piston cylinder, piston, supporting bridge and stretching nut.During work, the high pressure oil of power source output is delivered to piston cylinder through high pressure hose, moves on the piston in the piston cylinder under pressure, drives the stretching nut and moves up.The stretching nut connects with the work bolt thread; Thereby the work of elongation bolt; Make bolt elongate reach desired amount of deformation, Deformation control is within regime of elastic deformation, and the nut dial hole that stretches into the work bolt through other driving lever then carries out pretension or field-strip; Mode through fluid power or mechanical return makes the work bolt reply original shape at last, fulfils assignment.
The nut that adopts bolt tensioning jack to tighten is generally the round nut of band dial hole or with the hex-head nut (being with dial hole on the frock) of frock; But there be not to adopt under the situation of bolt tensioning jack the plain bolt mounting or dismounting tools can't dismounting when adopting round nut to tighten; As adopt the conventional hexagonal-head nut to use bolt tensioning jack to tighten and must adopt frock to use, particularly under the situation of mounting point anxiety owing to there not being the frock position just can't use bolt tensioning jack that the conventional hexagonal-head nut is installed and removed.
The model utility content
The technical problem that the utility model solves provides a kind of not only suitable bolt tensioning jack but also adapts to the bolt tensioning jack nut of plain bolt mounting or dismounting tools dismounting.
For achieving the above object, according to the utility model a kind of bolt tensioning jack nut is provided, comprising: columnar portion and the hexagon-head that is positioned at the columnar portion bottom are evenly equipped with one or more dial holes on the side circumference of columnar portion.
Further, be evenly equipped with ten dial holes on the side circumference of columnar portion.
Further, dial hole passes through the nut center along the radial centre lines of bolt tensioning jack nut.
Further, dial hole is through hole or groove.
Further, hexagon-head comprises: hexagon head and the flanged surface that is arranged on the hexagon head lower end.
Technological scheme according to the utility model; Because this bolt tensioning jack nut not only is suitable for bolt tensioning jack but also adapts to the dismounting of plain bolt mounting or dismounting tools; Solved round nut can't adopt the mounting or dismounting of plain bolt mounting or dismounting tools when not having bolt tensioning jack problem, also solved adopt the conventional hexagonal-head nut must adopt frock could use bolt tensioning jack to tighten and in the mounting point anxiety, do not have the problem that just can't use bolt tensioning jack that the conventional hexagonal-head nut is installed and removed under the situation of frock position.
Description of drawings
Fig. 1 is the broken section structural representation according to the bolt tensioning jack nut of the utility model;
Fig. 2 is the plan structure schematic representation according to the bolt tensioning jack nut of the utility model.
Reference character:
The 1-columnar portion, 11-dial hole, 2-hexagon-head, 21-hexagon head, 22-flanged surface.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the utility model is described in detail, but the protection domain that is to be understood that the utility model does not receive the restriction of embodiment.
Referring to Fig. 1 and Fig. 2, this bolt tensioning jack nut comprises: superposed columnar portion 1 and the hexagon-head 2 that is positioned at this columnar portion 1 bottom.Be evenly equipped with ten dial holes 11 on the side circumference of columnar portion 1, this dial hole 11 is the groove that does not connect perhaps along radially connecting of this bolt tensioning jack nut, stirs certain angle when conveniently being used for the bolt tensioning jack dismounting.Hexagon-head 2 comprises: hexagon head 21 and the flanged surface 22 that is arranged on this hexagon head lower end, and convenient with the dismounting of plain bolt dismantling device.
When adopting bolt tensioning jack to tighten this bolt tensioning jack nut, bolt tensioning jack extend into through driving lever and stirs the certain angle of nut in the dial hole 11 of columnar portion 1 on this nut and reach the purpose that tightens or pull down the work double-screw bolt back that stretches.Simultaneously, can adopt plain bolt mounting or dismounting spanner to install and remove through hexagon-head 2.
This bolt tensioning jack nut not only is suitable for bolt tensioning jack but also adapts to the dismounting of plain bolt mounting or dismounting tools; Solved round nut can't adopt the mounting or dismounting of plain bolt mounting or dismounting tools when not having bolt tensioning jack problem, also solved adopt the conventional hexagonal-head nut must adopt frock could use bolt tensioning jack to tighten and in the mounting point anxiety, do not have the problem that just can't use bolt tensioning jack that the conventional hexagonal-head nut is installed and removed under the situation of frock position.
More than a disclosed specific embodiment that is merely the utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into the protection domain of the utility model.
Claims (5)
1. a bolt tensioning jack nut is characterized in that, comprising: columnar portion and the hexagon-head that is positioned at said columnar portion bottom are evenly equipped with one or more dial holes on the side circumference of said columnar portion.
2. bolt tensioning jack nut according to claim 1 is characterized in that, is evenly equipped with ten dial holes on the side circumference of said columnar portion.
3. bolt tensioning jack nut according to claim 1 is characterized in that, said dial hole passes through the nut center along the radial centre lines of said bolt tensioning jack nut.
4. bolt tensioning jack nut according to claim 3 is characterized in that, said dial hole is through hole or groove.
5. according to each described bolt tensioning jack nut in the claim 1 to 4, it is characterized in that said hexagon-head comprises: hexagon head and the flanged surface that is arranged on said hexagon head lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201295016U CN202545517U (en) | 2012-03-30 | 2012-03-30 | Bolt tensioner nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201295016U CN202545517U (en) | 2012-03-30 | 2012-03-30 | Bolt tensioner nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545517U true CN202545517U (en) | 2012-11-21 |
Family
ID=47166158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201295016U Expired - Fee Related CN202545517U (en) | 2012-03-30 | 2012-03-30 | Bolt tensioner nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202545517U (en) |
-
2012
- 2012-03-30 CN CN2012201295016U patent/CN202545517U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20121121 Termination date: 20180330 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |