CN206945196U - A kind of calibration system of disc type circumference rod fastening rotor pull bar pretightning force - Google Patents
A kind of calibration system of disc type circumference rod fastening rotor pull bar pretightning force Download PDFInfo
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- CN206945196U CN206945196U CN201720807572.XU CN201720807572U CN206945196U CN 206945196 U CN206945196 U CN 206945196U CN 201720807572 U CN201720807572 U CN 201720807572U CN 206945196 U CN206945196 U CN 206945196U
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- China
- Prior art keywords
- pull bar
- wheel disc
- pretightning force
- calibration system
- nut
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Abstract
It the utility model is related to disc type circumference rod fastening rotor mounting technology field,A kind of specifically calibration system of disc type circumference rod fastening rotor pull bar pretightning force,Including pull bar,Wheel disc,Nut,Force application mechanism,Pressure sensor,Circumferentially distributed some tie rod holes are provided with each wheel disc,Wheel disc is axially stacked on the basis of the position of tie rod hole,Form the multistage wheel disc passed through for pull bar,Running through in tie rod hole on multistage wheel disc has at least one pull bar,The both ends of pull bar pass multistage wheel disc and are provided with nut respectively,One end of pull bar is provided with pressure sensor,Different torque values are applied to produce pretightning force to nut by force application mechanism,So that pressure sensor correspondingly gathers the pressure value of pull bar,So as to be accurately obtained the relational expression of moment of torsion and pull bar pretightning force,The size for the moment of torsion that apply when applying pretightning force to nut is conveniently found out when being assembled so as to rod fastening rotor,Calibration system assembling process is easy,It is easy to use,Reliably,It is easily achieved.
Description
Technical field
Disc type circumference rod fastening rotor mounting technology field is the utility model is related to, specifically a kind of disc type circumference pull bar
The calibration system of rotor pull bar pretightning force.
Background technology
Heavy duty gas turbine structure is sufficiently complex, including multiple parts such as rotor, blade and casing, wherein, rotor is
The key of gas turbine global design, distributed rod fastening rotor is because its is easy to process, is easy to cooling duct to design and extensive use
In gas turbine field, and the size of pull bar pretightning force will directly affect the globality of rod fastening rotor, and pretightning force is too small to be influenceed
The normal connection of rotor, pretightning force, which crosses conference, causes each parts Strength Safety deposit of rod fastening rotor to reduce, therefore, pull bar pretension
The accurate application of power is always a ring particularly important in distributed rod fastening rotor assembling process.
Utility model content
The purpose of this utility model is：For disc type circumference rod fastening rotor assembling provide it is a kind of it is convenient, be reliable, easy to reality
Existing pull bar pretightning force calibration system.
In order to solve the above-mentioned technical problem, the utility model employs following technical scheme：
A kind of calibration system of disc type circumference rod fastening rotor pull bar pretightning force, including pull bar, wheel disc, nut, force application mechanism,
Pressure sensor, is provided with circumferentially distributed some tie rod holes on each wheel disc, described wheel disc using the position of tie rod hole as
Reference axial direction is laminated, the multistage wheel disc that formation passes through for pull bar, and running through in the tie rod hole on multistage wheel disc has at least one pull bar,
The both ends of the pull bar pass multistage wheel disc and are provided with nut respectively, and one end of pull bar is provided with pressure sensor, by applying
Force mechanisms apply different torque values to nut and produce pretightning force, so that pressure sensor correspondingly gathers the pressure value of pull bar.
In some embodiments of the present utility model, also pad is provided with the pull bar between multistage wheel disc and nut
Gasket assembly.
In some embodiments of the present utility model, gasket assembly includes plain washer and spring washer, plain washer
Being set with directional pad of the spring washer successively from multistage wheel disc towards nut on pull bar, described plain washer is close to wheel disc setting,
Described spring washer is close to nut setting.
In some embodiments of the present utility model, pressure is equiped with multistage wheel disc in the pull bar and is passed
Sensor.
In some embodiments of the present utility model, tie rod hole using wheel disc central shaft as axle center on wheel disc with 45
Spend angular spacing distribution.
Running through in some embodiments of the present utility model, on described wheel disc has 8 pull bars.
In some embodiments of the present utility model, pressure sensor is equiped with respectively on each pull bar.
In some embodiments of the present utility model, calibration system also includes display module and processing module, institute
The processing module stated is connected with pressure sensor and display module respectively, and processing module enters the pressure value that pressure sensor gathers
Row processing, and through the pressure Value Data of display module display pull bar.
In some embodiments of the present utility model, pressure sensor is diaphragm type pressure sensor.
In some embodiments of the present utility model, described force application mechanism is Digital Electronic Torque Wrench.
The utility model is allowed to compared with prior art, have the following advantages that and accumulate due to using above technical scheme
Pole effect：
1. calibration system of the present utility model utilize pull bar, wheel disc and nut composition Simple tension rod rotor structure, and
Pressure sensor is set on pull bar, applies the moment of torsion of determination value to nut by force application mechanism, it is corresponding to read pressure value, so as to
The relational expression of moment of torsion and pull bar pretightning force is accurately obtained, it is pre- that application can be conveniently found out when being assembled so as to gas turbine pull rod rotor
The size for the moment of torsion that apply during clamp force to nut, calibration system assembling process is easy, it is easy to use, be reliable, easy to realize,
With extensive future in engineering applications；
2. setting the gasket assembly of plain washer and spring washer composition between multistage wheel disc and nut, reduce calibration system
Friction between middle nut and wheel disc, the influence for avoiding friction from bringing pull bar pretightning force calibration result, so that calibrated and calculated
It is more accurate；
3. being uniformly laid with wheel disc for the tie rod hole through pull bar, and pressure sensor is set on each pull bar,
So as to easily be demarcated respectively to each pull bar.
Brief description of the drawings
Fig. 1 is the attachment structure schematic diagram of the utility model calibration system；
Fig. 2 is the utility model and display module and the connection diagram of processing module；
Symbol description：
1. the pressure sensor of 5. nut of pull bar 2. wheel disc, 3. plain washer, 4. spring washer 6..
Embodiment
Below in conjunction with the drawings and specific embodiments to the utility model proposes technical scheme further description.According to
Explanation and claims, advantages and features of the present utility model will become apparent from below.It should be noted that accompanying drawing is using very
Simplified form and non-accurately ratio is used, be only used for conveniently, lucidly aiding in illustrating the mesh of the utility model embodiment
's.
Calibration system of the present utility model utilizes the composition Simple tension rod rotor structure of pull bar, wheel disc and nut, and is drawing
Pressure sensor is set on bar, applies the moment of torsion of determination value to nut by force application mechanism, it is corresponding to read pressure value, so as to essence
The relational expression of moment of torsion and pull bar pretightning force really is obtained, can be found out when being assembled so as to gas turbine pull rod rotor according to the relational expression
The size for the moment of torsion that apply when applying pretightning force to nut, calibration system assembling process is easy, is reliable, easy to realize.With
Under this calibration system is specifically described in conjunction with the accompanying drawings and embodiments.
Embodiment 1
Referring to Fig. 1, the calibration system of the disc type circumference rod fastening rotor pull bar pretightning force in the utility model includes pull bar
1st, wheel disc 2, nut 5, force application mechanism (not shown), pressure sensor 6, it is provided with each wheel disc 2 circumferentially distributed
Some tie rod holes, wheel disc 2 is axially stacked on the basis of the position of tie rod hole, forms the multistage wheel disc passed through for pull bar 1.More step cones
Through there is at least one pull bar 1 in tie rod hole on disk, the both ends of pull bar 1 pass multistage wheel disc and are provided with nut 5 respectively, draw
One end of bar 1 is provided with pressure sensor 6, applies different torque values to nut 5 by force application mechanism to produce pretightning force, so as to
Make the pressure value of the corresponding collection pull bar 1 of pressure sensor 6.
Also pad is provided with gasket assembly on pull bar 1 between multistage wheel disc and nut 5, and gasket assembly includes the He of plain washer 3
Spring washer 4, plain washer 3 and spring washer 4 are set from multistage wheel disc towards the directional pad of nut 5 successively on pull bar 1, plain washer
3, which are close to wheel disc 2, is set, and spring washer 4 is close to nut 5 and set.Plain washer 3 is for reducing rubbing between nut 5 and wheel disc 2
Wipe, spring washer pad 4 is used for preventing nut loosening.In bolt-connection, only appropriate pretightning force just can guarantee that bolt is reliable
Connection, and pull bar pretightning force is then to put on screw-down torque or the corner of pull bar by control to realize indirectly, still, pull bar
Corresponding relation between pretightning force and screw-down torque is seriously influenceed by friction condition, on the one hand friction is that screw thread self-locking is prevented
The necessary condition of pine, on the other hand friction can consume a large amount of screw-down torques (energy), so as to influence pull bar pretightning force.
Therefore, it is the calibration process of the further frictional influence pull bar pretightning force between reduction nut 5 and wheel disc 2, this reality
With the new gasket assembly by adding plain washer 3 and spring washer 4, not only the friction between nut 5 and wheel disc 2 is subtracted
Small, more loosen for pull rod screw self-locking of screw-down torque (energy) so applied when tightening nut 5 (is converted into pull bar
Pretightning force)；And it can also prevent nut 5 from turning round during tightening to cause the pretightning force of pull bar 1 to decline.In addition, can also be
Brushing lubricating oil on pull bar 1, to reduce the friction torque between nut 5 and pull bar 1.
Tie rod hole of the present utility model is to be distributed using wheel disc central shaft as axle center with 45 degree of angular spacings on wheel disc 2, therefore,
8 tie rod holes are provided with wheel disc 2, corresponding, can at most run through on the wheel disc 2 in the utility model has 8 pull bars 1, certainly,
The number of the upper connecting rod 1 of wheel disc 2 can be selected as needed, be not specifically limited here.
For convenience of measure pretightning force, it can all be equiped with pressure sensor 6 respectively on each pull bar 1, pressure can also be used
Sensor 6 measures the pretightning force on each pull bar 1 successively.For the accuracy of nominal data, typically pressure sensor 6 is filled
Pull bar is located at multistage wheel disc.Pressure sensor 6 typically then selects diaphragm type pressure sensor, and other types also can be selected
Pressure sensor, be not specifically limited herein, by can realize the pretightning force on pull bar 1 measure be defined.
In addition, the calibration system in the utility model may also include display module and processing module, as shown in Fig. 2 processing
Module is connected with pressure sensor 6 and display module respectively, at the pressure value that processing module gathers pressure sensor 6
Reason, and through the pressure Value Data of display module display pull bar, further, also moment of torsion and pressure value are entered using processing module
Row calculates, and to obtain the relational expression of more accurate moment of torsion and pull bar pretightning force, enters for example, model MSP340 single-chip microcomputers can be selected
Row processing.
In the present embodiment, force application mechanism is from energy Digital Electronic Torque Wrench, because Digital Electronic Torque Wrench can be accurately shown to spiral shell
The moment of torsion that mother applies, facilitate the calibrated and calculated process of pull bar.
When needing to be demarcated, more pull bars 1 are each passed through tie rod hole, multistage wheel disc 2 is sequentially passed through, passes through pull bar
1 is together in series multistage wheel disc 2, and pressure sensor 6 is installed at the pull bar 1 close to wheel disc 2, then at the both ends of pull bar 1 point
The nut 5 that both ends spindle nose is tightened after gasket assembly Dian not be set, so every piece independent wheel disc 2 is pre- caused by nut 5 by tightening
Clamp force and constitute rod fastening rotor pretightning force calibration system.
When applying the moment of torsion of setting to nut 5 using Digital Electronic Torque Wrench, pressure directly acts on pressure sensor 6
On diaphragm so that diaphragm produces the micro-displacement directly proportional to pressure medium, so that the resistance value of sensor changes, pressure
Force snesor exports this corresponding pressure value after internal circuit is handled, so, you can obtains pressure corresponding to setting value moment of torsion
Value, the setting torque value being applied to by change on nut, just obtains different pressures value corresponding to different torque values, so as to count
Calculate the relational expression for obtaining tightening nut torque and pull bar pretightning force.
Those skilled in the art should be understood that the utility model can be realized without de- with many other concrete forms
From spirit or scope of the present utility model, disclosed above is only the utility model preferred embodiment.Preferred embodiment does not have
All details of detailed descriptionthe, it is only described embodiment also not limit the utility model.Obviously, according to this specification
Content, can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is to preferably explain
Principle and practical application of the present utility model, so that one of ordinary skill in the art can utilize the utility model well.This reality
Only limited with new by claims and its four corner and equivalent, those skilled in the art can be such as appended power
Make and changing and modifications within the spirit and scope of the utility model that sharp claim defines.
Claims (10)
- A kind of 1. calibration system of disc type circumference rod fastening rotor pull bar pretightning force, it is characterised in that including pull bar, wheel disc, nut, Force application mechanism, pressure sensor, circumferentially distributed some tie rod holes are provided with each wheel disc, described wheel disc is with tie rod hole Position on the basis of it is axially stacked, the multistage wheel disc passed through for pull bar is formed, through having at least in the tie rod hole on multistage wheel disc One pull bar, the both ends of the pull bar pass multistage wheel disc and are provided with nut respectively, and one end of pull bar is provided with pressure sensing Device, different torque values are applied to produce pretightning force, so that pressure sensor correspondingly gathers pull bar to nut by force application mechanism Pressure value.
- A kind of 2. calibration system of disc type circumference rod fastening rotor pull bar pretightning force according to claim 1, it is characterised in that Also pad is provided with gasket assembly on pull bar between multistage wheel disc and nut.
- A kind of 3. calibration system of disc type circumference rod fastening rotor pull bar pretightning force according to claim 2, it is characterised in that Gasket assembly includes plain washer and spring washer, and plain washer and spring washer are on pull bar successively from multistage wheel disc towards nut Directional pad is set, and described plain washer is close to wheel disc setting, and described spring washer is close to nut setting.
- 4. a kind of calibration system of disc type circumference rod fastening rotor pull bar pretightning force according to claim 1 or 2, its feature exist In being equiped with pressure sensor at multistage wheel disc in the pull bar.
- A kind of 5. calibration system of disc type circumference rod fastening rotor pull bar pretightning force according to claim 1, it is characterised in that Tie rod hole is distributed on wheel disc using wheel disc central shaft as axle center with 45 degree of angular spacings.
- 6. a kind of calibration system of disc type circumference rod fastening rotor pull bar pretightning force, its feature exist according to claim 1 or 5 In running through on described wheel disc has 8 pull bars.
- A kind of 7. calibration system of disc type circumference rod fastening rotor pull bar pretightning force according to claim 6, it is characterised in that Pressure sensor is equiped with respectively on each pull bar.
- A kind of 8. calibration system of disc type circumference rod fastening rotor pull bar pretightning force according to claim 1, it is characterised in that Calibration system also includes display module and processing module, described processing module respectively with pressure sensor and display module phase Even, processing module is handled the pressure value that pressure sensor gathers, and the pressure Value Data of pull bar is shown through display module.
- A kind of 9. calibration system of disc type circumference rod fastening rotor pull bar pretightning force according to claim 1, it is characterised in that Pressure sensor is diaphragm type pressure sensor.
- 10. a kind of calibration system of disc type circumference rod fastening rotor pull bar pretightning force according to claim 1, its feature exist In described force application mechanism is Digital Electronic Torque Wrench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720807572.XU CN206945196U (en) | 2017-07-05 | 2017-07-05 | A kind of calibration system of disc type circumference rod fastening rotor pull bar pretightning force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720807572.XU CN206945196U (en) | 2017-07-05 | 2017-07-05 | A kind of calibration system of disc type circumference rod fastening rotor pull bar pretightning force |
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| Publication Number | Publication Date |
|---|---|
| CN206945196U true CN206945196U (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720807572.XU Expired - Fee Related CN206945196U (en) | 2017-07-05 | 2017-07-05 | A kind of calibration system of disc type circumference rod fastening rotor pull bar pretightning force |
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| CN (1) | CN206945196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131993A (en) * | 2017-07-05 | 2017-09-05 | 上海应用技术大学 | The scaling method and calibration system of a kind of circumferential rod fastening rotor pull bar pretightning force of disc type |
-
2017
- 2017-07-05 CN CN201720807572.XU patent/CN206945196U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131993A (en) * | 2017-07-05 | 2017-09-05 | 上海应用技术大学 | The scaling method and calibration system of a kind of circumferential rod fastening rotor pull bar pretightning force of disc type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180130 Termination date: 20190705 |