Sab qhov tsim ntawm cov txiv ntoo txuas ntxiv yog ua raws li kev suav tseeb ntawm kev cuam tshuam kev sib raug zoo ntawm lub qhov txoj hauj lwm thiab cov xov (feem ntau lub qhov taub yog 1/3-1/2 lub xov kab, piv txwv li, M12 txiv ntseej sib haum rau lub qhov 4-6 hli). Qhov no ua kom cov txiv ntseej lub zog tswj hwm (lub zog tensile tswj qib 8.8 lossis 10.9 tus qauv) thaum tseem ua tiav cov haujlwm hauv qab no:
- Anti-loosening function: The side hole can be inserted with a cotter pin or wire lock, suitable for vibrating environments (e.g., when fixing agricultural machinery shafts, anti-loosening efficiency is increased by 60% at vibration frequencies >15 Hz).
- Lubrication channel: Hauv cov tshuab mining, lub qhov sab ua haujlwm yog qhov chaw nres nkoj roj (pom zoo rau cov roj txhaj tshuaj siab ntawm 0.2-0.5MPa), txuas xov lub neej ntau dua peb zaug.
Khoom siv thiab kev ua haujlwm
Cold heading (accuracy ±0.1mm) or CNC machining (costlier but suitable for special materials such as titanium alloys) are used. The surface is galvanized (thickness 5-8μm) or Dacromet-treated (salt spray resistance >500 h). II. Cov xwm txheej ntawm daim ntawv thov thiab xaiv cov lus qhia
1. Cov khoom siv hnyav
- Cua turbine ntauwd ntsia liaj qhov rooj sib txuas: Siv M30 txuas ntxiv txiv ntoo (6 hli sab qhov) nrog cov hydraulic tensioner, lub preload tuaj yeem ncav cuag 450kN (xa mus rau IEC 61400-6).
- Rail rail fasteners: Sab lub qhov tsim tso cai rau kev ntxig rau sab nraud ntawm tus pin elastic, ua rau kev hloov pauv sab nraud los ntawm 40%.
Qhov zoo piv rau cov tsoos txiv ntoo
1. Muaj nuj nqi Scalability
Thaum cov txiv ntoo ib txwm cia siab rau kev sib txhuam kom tsis txhob xoob, cov txiv ntoo txuas ntxiv siv lub tshuab xauv (xws li, tus pin) kom txo tau qhov kev pheej hmoo ntawm loosening.<1% (laboratory vibration table test results).
2. Kev tu yooj yim
Hauv kev sib txuas ntawm cov roj flange flange, sab qhov tsim tso cai rau cov roj ncaj qha thiab ntxuav yam tsis muaj kev cuam tshuam cov txiv ntoo, txuag ntau dua 50% lub sijhawm tu.