Xwm thiab Txoj Cai Ua Haujlwm ntawm Threaded Fasteners

Threaded fasteners yog cov txheej txheem kev siv tshuab uas siv lub hauv paus ntsiab lus ntawm lub helix (xov) kom detachably koom nrog ob lossis ntau qhov chaw. Los ntawm kev koom nrog cov xov sab hauv thiab sab nraud, lawv hloov cov torque hloov mus rau hauv qhov tseem ceeb axial clamping quab yuam, yog li muab kev sib txuas txhim khu kev qha, kho, thiab sealing; lawv yog cov feem ntau siv cov khoom siv hauv kev lag luam niaj hnub no.

Lub hauv paus ntawm ib tug threaded fastener yog cov xov khub. Nws txoj hauv kev ua haujlwm yog ua raws li cov neeg kho tshuab ntawm lub dav hlau helical inclined: raws li lub bolt (los yog cov ntsia hlau) tig, lub helix lub kaum sab xis ntawm cov xov converts rotational motion rau hauv linear motion raws lub axis, generating preload quab yuam. Qhov no preload tsim compressive kev sib txhuam ntawm qhov sib koom ua ke, ua rau lawv tuaj yeem tiv taus cov khoom sab nraud xws li shear rog, kev co, thiab kev cuam tshuam.