JPH0270938U - - Google Patents
Info
- Publication number
- JPH0270938U JPH0270938U JP14967888U JP14967888U JPH0270938U JP H0270938 U JPH0270938 U JP H0270938U JP 14967888 U JP14967888 U JP 14967888U JP 14967888 U JP14967888 U JP 14967888U JP H0270938 U JPH0270938 U JP H0270938U
- Authority
- JP
- Japan
- Prior art keywords
- nut
- strain gauge
- axial force
- bolt
- view
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Description
第１図ａ、ないしｄ、ないし第３図は本考案の
実施例で、第１実施例の第１図ａないしｄにおい
て、ａおよびｃは摩擦式ひずみゲージ押付軸がそ
れぞれＯＦＦおよびＯＮの状態の側面図、ｂおよ
びｄはそれぞれａおよびｃのＡ矢視図およびＢ矢
視図、第２図ａ，ｂは第２実施例で、ａおよびｂ
はそれぞれナツトがセツトされていない状態およ
びセツトされている状態の側面図、第３図は第３
実施例の側面図、第４図はナツト締付時のナツト
側面部のひずみ分布図、第５図はナツト側面ひず
みとボルト締め付け軸力の関係図、第６図ａおよ
びｂは鉄鋼構造物のボルト継手を示す平面図およ
び側面図、第７図ａ，ｂおよび第８図ａ，ｂは従
来のボルト締付軸力管理装置で、第７図ａ，ｂは
締付トルクによる方式で、ａは側面図、ｂは平面
図、第８図ａ，ｂはナツトの回転角による方式の
平面図で、ａは回転前、ｂは回転後の状態を示す
。
１：ナツト、２：座金、３：ボルト、４：被締
付物、５：ナツト締付ソケツト兼ボルト軸力管理
装置、６：アーム、７：摩擦式ひずみゲージ、８
：摩擦式ひずみゲージ押付け力調整材、１０：軸
力表示装置、１１：配線、１２：ナツトと摩擦式
ひずみゲージ押付け力調整材のねじによるかみ合
い部、１３：被締付物検出棒、１４：スプリング
、１５：主板、１６：添接板。
Figures 1 a to 3 show embodiments of the present invention. In Figures 1 a to d of the first embodiment, a and c are states in which the friction type strain gauge pressing shaft is OFF and ON, respectively. , b and d are A and B views of a and c, respectively, Figure 2 a and b are the second embodiment, and a and b
3 is a side view of the state in which the nut is not set and the state in which it is set, respectively.
A side view of the example, Fig. 4 is a strain distribution diagram of the nut side surface when the nut is tightened, Fig. 5 is a relationship diagram between nut side strain and bolt tightening axial force, and Figs. 6 a and b are diagrams of the steel structure. A plan view and a side view showing a bolt joint, FIGS. 7a, b, and 8a, b show a conventional bolt tightening axial force management device, and FIGS. 7a, b show a method using tightening torque, 8 is a side view, b is a plan view, and FIGS. 8a and 8b are plan views of the method according to the rotation angle of the nut, where a shows the state before rotation and b shows the state after rotation. 1: Nut, 2: Washer, 3: Bolt, 4: Tightened object, 5: Nut tightening socket and bolt axial force control device, 6: Arm, 7: Friction type strain gauge, 8
: Friction type strain gauge pressing force adjustment material, 10: Axial force display device, 11: Wiring, 12: Screw engagement part between nut and friction type strain gauge pressing force adjustment material, 13: Tightened object detection rod, 14: Spring, 15: main plate, 16: attachment plate.
Claims (1)
せる手段を備えた部材と、該部材のナツト側面当
接部に設けた摩擦式ひずみゲージと、該ひずみゲ
ージのナツトへの押付力調整部材と、前記ひずみ
ゲージの出力をボルトの軸力に演算表示する手段
とを備えたことを特徴とするボルト締付軸力管理
装置。 a member that is removably attached to a nut and has a means for rotating the nut; a friction strain gauge provided on a side surface of the member that abuts the nut; and a member that adjusts the pressing force of the strain gauge to the nut; A bolt tightening axial force management device comprising means for calculating and displaying the output of the strain gauge as an axial force of a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14967888U JPH0270938U (en) | 1988-11-18 | 1988-11-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14967888U JPH0270938U (en) | 1988-11-18 | 1988-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0270938U true JPH0270938U (en) | 1990-05-30 |
Family
ID=31422130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14967888U Pending JPH0270938U (en) | 1988-11-18 | 1988-11-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0270938U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010230542A (en) * | 2009-03-27 | 2010-10-14 | Minebea Co Ltd | Applied pressure detector |
-
1988
- 1988-11-18 JP JP14967888U patent/JPH0270938U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010230542A (en) * | 2009-03-27 | 2010-10-14 | Minebea Co Ltd | Applied pressure detector |
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