CN202228519U - Craft gasket and device for testing torque coefficients of high strength bolt - Google Patents
Craft gasket and device for testing torque coefficients of high strength bolt Download PDFInfo
- Publication number
- CN202228519U CN202228519U CN2011203824819U CN201120382481U CN202228519U CN 202228519 U CN202228519 U CN 202228519U CN 2011203824819 U CN2011203824819 U CN 2011203824819U CN 201120382481 U CN201120382481 U CN 201120382481U CN 202228519 U CN202228519 U CN 202228519U
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- gasket
- strength bolt
- craft
- hole
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a craft gasket for testing torque coefficients of a high strength bolt, which comprises a gasket body, wherein a through hole is arranged on the gasket body, and the surface state of one surface of the gasket body is identical to that of an actual installation surface of a nut of a high strength bolt connecting pair. A device for testing the torque coefficients of the high strength bolt is further disclosed. The device comprises the craft gasket and a bolt supporting device with a through hole, the craft gasket is fixedly connected with a nut installation surface on the bolt supporting device, and the through hole of the craft gasket is in coaxial communication with the through hole of the bolt supporting device. The craft gasket and the device for testing the torque coefficients of the high strength bolt can eliminate inaccuracy of test value of the torque coefficients of the bolt caused by different states of the nut installation surface, thereby improving accuracy of bolt construction torque and guaranteeing reliability of a wind driven generator set, especially reliability of a tower.
Description
Technical field
The utility model relates to the high-strength bolt Detection range, particularly, relates to the test of blower fan high-strength bolt torque coefficient with technology pad and device.
Background technique
State's inner blower high-strength bolt torque coefficient test at present is on the torque coefficient testing apparatus of customization, to carry out; The nut of bolt auxiliary connection (band pad) attachment face is confirmed; And be reusable; There are very big-difference in its material and surface state and actual blower fan nut (band pad) attachment face, and the nut attachment face is one of the key factor that influences the measured load degree of accuracy of torque coefficient.And the mensuration of bolt torque coefficient departs from actual value, excessive or too smallly all can cause potential safety hazard.The torque coefficient test value is less than actual value, surpasses 10%, can cause in the work progress bolt to owe stubborn, causes bolt pretightening not enough, be easy to generate loosening, and fatigue fracture; The torque coefficient test value is greater than actual value, surpasses 10%, can cause in the work progress bolt stubborn excessively, causes bolt that the surrender fracture takes place.So the accuracy of blower fan high-strength bolt torque coefficient is directly connected to the reliability of blower fan, particularly tower tube bolt, after inefficacy, can cause collapsing of whole blower fan, causes serious accident and economic loss.
The model utility content
The purpose of the utility model is to overcome the shortcoming and defect of above-mentioned existing technology; Provide a kind of high-strength bolt torque coefficient test with technology pad and device; This technology pad and device can be eliminated the difference that causes because of the nut attachment face, thereby improve the test accuracy of torque coefficient.
The utility model solves the technological scheme that its technical problem adopted:
The technology pad is used in the test of high-strength bolt torque coefficient, comprises shim body, and said shim body is provided with through hole, and the surface state on a surface of shim body is identical with the surface state of the as installed face of the nut of high-strength bolt auxiliary connection.
Further, said shim body is provided with a plurality of lock pin aperture.
Further, said technology pad adopts the as installed flooring of the nut of high-strength bolt auxiliary connection.
High-strength bolt torque coefficient testing apparatus; Comprise the bolt support device that contains through hole; Comprise that also above-mentioned test uses the technology pad, said technology pad is fixedly connected with nut attachment face on the bolt support device, and the through hole coaxial communication of the through hole of said technology pad and bolt support device.
Further, said technology pad is fixedly connected through stop pin with the bolt support device.
Compared with prior art, the utlity model has following beneficial effect:
The utility model is used the technology pad to different blower fan high-strength bolt installation positions according to actual nut attachment face state processing test.This craftwork pad sheet material select for use and surface treatment and actual blower fan nut attachment face in full accord, thereby the difference of eliminating because of nut attachment face state causes the inaccurate of torque coefficient test.This technology pad can be confirmed profile according to the testing machine concrete condition of each bolt producer, and is simple in structure, easy for installation.The testing apparatus that utilization contains this technology pad carries out the torque coefficient test, can improve the torque coefficient degree of accuracy, thereby guarantees the reliability of wind-powered electricity generation unit.
Through accompanying drawing and embodiment, the technological scheme of the utility model is done further detailed description below.
Description of drawings
Fig. 1 is a technology pad outline drawing;
Fig. 2 is that A-A among Fig. 1 is to view;
Fig. 3 is a wind-powered electricity generation unit high-strength bolt torque coefficient test set-up schematic representation.
Embodiment
Describe below in conjunction with the preferred embodiment of accompanying drawing, should be appreciated that preferred embodiment described herein only is used for explanation and explains the utility model, and be not used in qualification the utility model the utility model.
The utility model is to tower tube bolt and other the high-strength connecting bolt torque coefficient tests of wind-powered electricity generation unit; Because the measured load of blower fan high-strength bolt torque coefficient can be because there be great difference in the difference of nut attachment face state; In order to improve the test accuracy of torque coefficient; Basis is practical to provide a kind of high-strength bolt torque coefficient test with technology pad and testing apparatus, can eliminate the difference that causes because of the nut attachment face.Nut attachment face in the utility model is meant the attachment face of the nut that contains actual pad.
Like Fig. 1, shown in 2; The technology pad is used in the high-strength bolt torque coefficient test of the utility model; Comprise shim body 1a, shim body 1a is provided with through hole 1b, and the surface state of the surperficial 1d of shim body 1a is identical with the surface state of the as installed face of the nut of high-strength bolt auxiliary connection; Shim body 1a is provided with 3 lock pin aperture 1c.This craftwork pad sheet material select for use and surface treatment and actual blower fan nut attachment face in full accord.The concrete profile of this technology pad also can be changed by matching test equipment, and present embodiment is merely the outline drawing of certain type test equipment designs of coupling.
As shown in Figure 3; The high-strength bolt torque coefficient testing apparatus of the utility model; Comprise the bolt support device 6 that contains through hole; Also comprise technology pad 1, technology pad 1 is fixedly connected through stop pin 5 with nut attachment face on the bolt support device 6, and the through hole coaxial communication of the through hole of technology pad 1 and bolt support device 6.Assembly method when utilizing this testing apparatus that blower fan high-strength bolt torque coefficient is tested is: in the through hole with bolt 4 inserting bolt support devices 6 to be measured, assemble actual pad 2 and nut 3 successively near the technology pad 1 on the bolt support device 6.Through actual pad 2 is installed on the technology pad 1; Guarantee the state and the as installed state consistency of nut attachment face (containing actual pad 2); Thereby got rid of the big test error that causes, the degree of accuracy that improves the torque coefficient test value owing to the difference of nut attachment face state.
What should explain at last is: the above is merely the preferred embodiment of the utility model; Be not limited to the utility model; Although the utility model has been carried out detailed explanation with reference to previous embodiment; For a person skilled in the art, it still can be made amendment to the technological scheme that previous embodiment is put down in writing, and perhaps part technical characteristics wherein is equal to replacement.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. the technology pad is used in the test of high-strength bolt torque coefficient; It is characterized in that; Comprise shim body, said shim body is provided with through hole, and the surface state on a surface of shim body is identical with the surface state of the as installed face of the nut of high-strength bolt auxiliary connection.
2. the technology pad is used in test according to claim 1, it is characterized in that, said shim body is provided with a plurality of lock pin aperture.
3. the technology pad is used in test according to claim 1 and 2, it is characterized in that, said technology pad adopts the as installed flooring of the nut of high-strength bolt auxiliary connection.
4. high-strength bolt torque coefficient testing apparatus; Comprise the bolt support device that contains through hole; It is characterized in that; Comprise that also the technology pad is used in each described test among the claim 1-3, said technology pad is fixedly connected with nut attachment face on the bolt support device, and the through hole coaxial communication of the through hole of said technology pad and bolt support device.
5. testing apparatus according to claim 4 is characterized in that, said technology pad is fixedly connected through stop pin with the bolt support device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203824819U CN202228519U (en) | 2011-10-10 | 2011-10-10 | Craft gasket and device for testing torque coefficients of high strength bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203824819U CN202228519U (en) | 2011-10-10 | 2011-10-10 | Craft gasket and device for testing torque coefficients of high strength bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228519U true CN202228519U (en) | 2012-05-23 |
Family
ID=46079106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203824819U Expired - Lifetime CN202228519U (en) | 2011-10-10 | 2011-10-10 | Craft gasket and device for testing torque coefficients of high strength bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228519U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109477765A (en) * | 2016-06-30 | 2019-03-15 | 株式会社华尔卡 | Device is practiced in fastening, method is practiced in fastening, program is practiced in fastening and fastening practice system |
-
2011
- 2011-10-10 CN CN2011203824819U patent/CN202228519U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109477765A (en) * | 2016-06-30 | 2019-03-15 | 株式会社华尔卡 | Device is practiced in fastening, method is practiced in fastening, program is practiced in fastening and fastening practice system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NATIONAL ELECTRIC NEW ENERGY TECHNOLOGY INSTITUTE Effective date: 20130628 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130628 Address after: 100000 Beijing City, Zhongguancun, South Street, building B, building No., level 56, level 16 Patentee after: Guodian United Power Technology Co., Ltd. Patentee after: Guodian New Energy Technology Institute Address before: 100000 Beijing City, Zhongguancun, South Street, building B, building No., level 56, level 16 Patentee before: Guodian United Power Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |