CN208443304U - The arc length calibration tool of hot tight bolt - Google Patents
The arc length calibration tool of hot tight bolt Download PDFInfo
- Publication number
- CN208443304U CN208443304U CN201821318021.8U CN201821318021U CN208443304U CN 208443304 U CN208443304 U CN 208443304U CN 201821318021 U CN201821318021 U CN 201821318021U CN 208443304 U CN208443304 U CN 208443304U
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- Prior art keywords
- arc length
- heat
- tight bolt
- calibration tool
- piece
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Abstract
The utility model discloses a kind of arc length calibration tools of the tight bolt of heat comprising two operating sticks, two cross bars and measurement piece.The middle position of two operating sticks is connected with rotational structure, and one end of two operating sticks is measurement end, and the other end is operating side；The middle position of two cross bars is separately fixed in the measurement end of two operating sticks；The both ends of measurement piece are separately positioned on two cross bars；The operating side for wherein operating two operating sticks is close to or measures elongating or shortening for piece far from can control.The arc length calibration tool of the tight bolt of the heat of the utility model can solve in hot tight bolt heating process and be unable to measure arc length problem.
Description
Technical field
The utility model is the arc length calibration tool about a kind of tight bolt of heat.
Background technique
When normal operation, the equipment such as high temperature, the cylinder body of high-pressure medium, valve body, container, the spiral shell at flange faying face are included
Bolt is only fastened in the case where not being filled with the cold conditions of medium, and with the raising of temperature, pipeline or vessel flange, gasket and fastening bolt are all
It accordingly to expand, axial expansion then will lead to the release decline of bolt clamp force, cause dielectric leakage, and the tight bolt metal of heat solves this
One problem, but there are certain difficulty, no specific purpose tool, feelings of the calibration in the presence of inaccuracy for the calibration of the fastening arc length of the tight bolt of heat
Condition.Therefore a kind of tool that can solve the above problem is urgently developed.
The information disclosed in the background technology section is intended only to increase the understanding to the general background of the utility model, and
It is not construed as recognizing or implying in any form that information composition is already known to those of ordinary skill in the art existing
Technology.
Utility model content
The purpose of this utility model is to provide a kind of arc length calibration tools of the tight bolt of heat, are able to solve the tight bolt of heat
Arc length problem is unable to measure in heating process.
To achieve the above object, the utility model provides a kind of arc length calibration tool of tight bolt of heat comprising two
Operating stick, two cross bars and measurement piece.The middle position of two operating sticks is connected with rotational structure, one end of two operating sticks
For measurement end, the other end is operating side；The middle position of two cross bars is separately fixed in the measurement end of two operating sticks；Measurement
The both ends of piece are separately positioned on two cross bars；The operating side for wherein operating two operating sticks, is close to or far from can control
System measurement piece elongates or shortens.
In a preferred embodiment, measurement piece uses the soft foil with resilient nature to be made.
In a preferred embodiment, measurement piece is made of heat-resisting material.
In a preferred embodiment, two cross bars are wherein provided with scroll spring on one, and the one of scroll spring
It holds on a fixed cross bar wherein, the other end and the one end for measuring piece are affixed, measure the another of the other end of piece and two cross bars
One affixed.
In a preferred embodiment, measurement piece includes the first scale and the second scale, and the setting of the first scale is being surveyed
The upper at of piece is measured, the second scale is arranged at the lower edge of measurement piece.
In a preferred embodiment, the first scale uses metric length scale, and the second scale is using long scale made in Great Britain
Ruler.
In a preferred embodiment, separate scrollwork bullet of the reset of the first scale and the second scale in measurement piece
One end of spring.
In a preferred embodiment, rotational structure uses hinge or pivot.
In a preferred embodiment, rotational structure includes locking device, after rotational structure is locked device locking,
Measurement piece is in a regular length.
In a preferred embodiment, two operating sticks and two cross bars are made of refractory metal material.
Compared with prior art, the arc length calibration tool of the tight bolt of the heat of the utility model has the advantages that
1. solving the problems, such as to be unable to measure arc length in bolt heating process；
2. the tool is adapted to the bolt of various specifications, can the tight arc length of real-time monitoring bolt heat；
3. the measurement of bolt arc length precisely reaches design value, avoid because bolt is tight caused by demarcating bring error by hand
Gu torque is not in place or excessive, guarantee to ensure bolt service life while fastening effect.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram according to the arc length calibration tool of the tight bolt of heat of one embodiment of the utility model.
Fig. 2 is the partial enlargement signal according to the arc length calibration tool of the tight bolt of heat of one embodiment of the utility model
Figure.
Fig. 3 is the solid according to the working condition of the arc length calibration tool of the tight bolt of heat of one embodiment of the utility model
Schematic diagram.
Fig. 4 is facing according to the working condition of the arc length calibration tool of the tight bolt of heat of one embodiment of the utility model
Schematic diagram.
Fig. 5 is the vertical view according to the working condition of the arc length calibration tool of the tight bolt of heat of one embodiment of the utility model
Schematic diagram.
Main appended drawing reference explanation:
1- operating stick, the operating side 11-, 12- measurement end, 2- rotational structure, 3- cross bar, 4- measurement piece, the first scale of 41-,
The second scale of 42-, the tight bolt of 5- heat, the initial position A-, B- final position, 10- arc length calibration tool.
Specific embodiment
With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail, it is to be understood that this is practical
Novel protection scope is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in Figure 1 to Figure 2, Fig. 1 is the arc length calibration tool according to the tight bolt of heat of one embodiment of the utility model
Stereoscopic schematic diagram.Fig. 2 is the partial enlargement according to the arc length calibration tool of the tight bolt of heat of one embodiment of the utility model
Schematic diagram.According to a kind of arc length calibration tool 10 of the tight bolt of heat of the preferred embodiments of the present invention comprising two behaviour
Make 1, two cross bar 3 of bar and measurement piece 4.
In some embodiments, two structures in long strip of operating stick 1, every operating stick all have operating side 11 and survey
End 12 is measured, with the connection of rotational structure 2, rotational structure 2 can be using the rotation of hinge or pivot in the middle position of two operating sticks 1
Turn mode, the utility model is not limited thereto.Rotational structure 2 further includes locking device, when rotational structure 2 be locked device lock
When tight, the rotational structure 2 of two operating sticks 1 is fixed and cannot rotate, and measures piece 4 at this time and is in a regular length.
The locking device of the utility model can be suitable for the locking form of the prior art of the application, e.g. spiral lock using all
Tightly, i.e., the axial distance of rotational structure 2 is clamped by screw thread and make its locking.Two structures in long strip of cross bar 3, two cross bars
3 middle position is separately fixed in the measurement end 12 of two operating sticks 1, and two operating sticks 1 and two cross bars 3 use high temperature resistant
Metal material is made, and the connection type between operating stick 1 and cross bar 3 can be using welding or some other suitable connection side
Formula, the utility model is without limitation.
In some embodiments, the flake structure in long strip of piece 4 is measured, the both ends of measurement piece 4 are separately positioned on two
On cross bar 3.Measuring piece 4 and using has resilient nature, and soft foil resistant to high temperature is made.Wherein the one of two cross bars 3
It is provided on root scroll spring (not being painted), on the fixed cross bar 3 wherein in one end of scroll spring, and scroll spring is another
One end and the one end for measuring piece 4 are affixed, and another for measuring the other end and two cross bars 3 of piece 4 is affixed.Wherein operate two behaviour
The operating side 11 for making bar 1 is close to or measures elongating or shortening for piece 4 far from can control.As the behaviour of two operating sticks 1
Make end 11 it is close when, measurement piece 4 be located on a wherein cross bar 3 and shorten in the tension force effect last volume with scroll spring, when two
The operating side 11 of root operating stick 1 far from when, measurement piece 4 overcome the tension of scroll spring under the effect of external force and extend.
Please be in detail referring to Fig.2, in some embodiments, measurement piece 4 includes the first scale 41 and the second scale 42, the
The upper at of measurement piece 4 is arranged in one scale 41, and the second scale 42 is arranged at the lower edge of measurement piece 4.First scale 41 uses
Metric length scale, e.g. millimeter, the second scale 42 is using length scales made in Great Britain, e.g. inch.First scale 41 and
The zero position of two scales 42 is in the fixing end for measuring piece 4, that is, one end of not set volute spring.Piece 4 is measured selecting
Soft metal piece carry out scale design when, be considered as the metal heated coefficient of expansion, the metal that the coefficient of expansion should be selected small, otherwise
Measurement error will be brought.
As shown in Figures 3 to 5, Fig. 3 is the arc length calibration tool according to the tight bolt of heat of one embodiment of the utility model
Working condition stereoscopic schematic diagram.Fig. 4 is the arc length calibration tool according to the tight bolt of heat of one embodiment of the utility model
Working condition schematic elevation view.Fig. 5 is the arc length calibration tool according to the tight bolt of heat of one embodiment of the utility model
Working condition schematic top plan view.In some embodiments, the arc length calibration tool of the tight bolt of heat of the utility model
Application method is as follows:
Step 1: the calibration arc length of setting measurement piece 4；The preload rotation angle of the tight bolt 5 of heat provided according to producer or
Person rotates the setting value of arc length, and the operating side 11 of adjustment operating stick 1 makes the length for measuring piece 4 be equal to the setting value that producer provides,
Then the locking device of rotating mechanism is locked.
Step 2: confirmation uses initial position；Hot tight bolt 5 and nut are first preloaded on the workpiece fastened (example
Flange in this way), later on the nut check end face of hot tight bolt 5 and on flange, with bow pen or paint dotting pen positioning heat
The initial position A that the arc length calibration tool 10 of tight bolt uses, the initial position A on nut and flange is overlapping at this time, so
Upper final position B is drawn along the setting value of the arc length calibration tool 10 of hot tight bolt on flange again afterwards, removes hot tight bolt
Arc length calibration tool 10, the arc length between initial position A and final position B is the arc length calibration tool 10 of the tight bolt of heat at this time
Setting arc length；
Step 3: hot fastening bolt 5 is heated, starting during tightening hot fastening bolt 5, in hot fastening bolt 5
It is to reach preload to require when position A rotates through the final position B on flange.(final position B similarly, can not also be delimited,
After in initial position, A is pulled, the arc length calibration tool 10 of the tight bolt of heat is placed on that original place is motionless, and rotating nuts make on nut at this time
When initial position A reaches the other end of the arc length calibration tool 10 of the tight bolt of heat, as reaches preload and require.)
As stated above, the arc length calibration tool of the tight bolt of the heat of the utility model compared with prior art, has following excellent
Point:
1. solving the problems, such as to be unable to measure arc length in hot tight bolt heating process；
2. the tool is adapted to the tight bolt of heat of various specifications, can the tight bolt of real-time monitoring heat the tight arc length of heat；
3. the arc length measurement of hot tight bolt is precisely, avoid because the tight bolt of heat is tight caused by demarcating bring error by hand
Gu torque is insufficient or excessive phenomenon, guarantee the service life that hot tight bolt has been ensured while fastening effect.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model
And its practical application, so that those skilled in the art can be realized and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (10)
1. a kind of arc length calibration tool of the tight bolt of heat characterized by comprising
The middle position of two operating sticks, two operating sticks is connected with rotational structure, and one end of two operating sticks is
Measurement end, the other end are operating side；
Two cross bars, the middle position of two cross bars are separately fixed in the measurement end of two operating sticks；With
And
Piece is measured, the both ends of the measurement piece are separately positioned on two cross bars；
Wherein, the operating side for operating two operating sticks is close to or described measures stretching for piece far from can control
Long or shortening.
2. the arc length calibration tool of the tight bolt of heat as described in claim 1, which is characterized in that the measurement piece, which uses, has bullet
The soft foil of property property is made.
3. the arc length calibration tool of the tight bolt of heat as claimed in claim 2, which is characterized in that the measurement piece uses high temperature resistant
Material is made.
4. the arc length calibration tool of the tight bolt of heat as described in claim 1, which is characterized in that wherein the one of two cross bars
Scroll spring is provided on root, one end of the scroll spring is installed on a wherein cross bar, the other end and the survey
The one end for measuring piece is affixed, and another of the other end and two cross bars of the measurement piece is affixed.
5. the arc length calibration tool of the tight bolt of heat as claimed in claim 4, which is characterized in that the measurement piece included the first quarter
The upper at of the measurement piece is arranged in degree and the second scale, first scale, and second scale is arranged in the survey
At the lower edge for measuring piece.
6. the arc length calibration tool of the tight bolt of heat as claimed in claim 5, which is characterized in that first scale uses metric system
Length scales, second scale is using length scales made in Great Britain.
7. the arc length calibration tool of the tight bolt of heat as claimed in claim 6, which is characterized in that first scale and described the
The reset of two scales is in one end far from the scroll spring of the measurement piece.
8. the arc length calibration tool of the tight bolt of heat as described in claim 1, which is characterized in that the rotational structure uses hinge
Or pivot.
9. the arc length calibration tool of the tight bolt of heat as claimed in claim 8, which is characterized in that the rotational structure includes locking
Device, after the rotational structure is locked by the locking device, the measurement piece is in a regular length.
10. the arc length calibration tool of the tight bolt of heat as described in claim 1, which is characterized in that two operating sticks and institute
Two cross bars are stated to be made of refractory metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821318021.8U CN208443304U (en) | 2018-08-15 | 2018-08-15 | The arc length calibration tool of hot tight bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821318021.8U CN208443304U (en) | 2018-08-15 | 2018-08-15 | The arc length calibration tool of hot tight bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208443304U true CN208443304U (en) | 2019-01-29 |
Family
ID=65086337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821318021.8U Active CN208443304U (en) | 2018-08-15 | 2018-08-15 | The arc length calibration tool of hot tight bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208443304U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501231A (en) * | 2019-08-29 | 2019-11-26 | 中广核核电运营有限公司 | Nuclear steam turbine cylinder bolt stress and strain test macro |
-
2018
- 2018-08-15 CN CN201821318021.8U patent/CN208443304U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501231A (en) * | 2019-08-29 | 2019-11-26 | 中广核核电运营有限公司 | Nuclear steam turbine cylinder bolt stress and strain test macro |
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