Bilya vintlari dastgoh asboblari va nozik mashinalarda eng ko'p ishlatiladigan uzatish komponentlari hisoblanadi. Uning asosiy vazifasi aylanish harakatini chiziqli harakatga aylantirish yoki momentni eksenel takrorlanuvchi kuchga aylantirishdir. Shu bilan birga, u yuqori aniqlik, qaytariluvchanlik va yuqori samaradorlik xususiyatlariga ham ega.
Eksantriklik: Ruxsat etilgan tomon va qo'llab-quvvatlovchi tomon o'rtasidagi markazning og'ishiga ishora qiladi.
Inclination: In addition to eccentricity, the installation error caused by the parallel error (up, down, left, and right) or vertical error of the screw nut mounting part between the screw shaft and the guide (LM guide, etc.).
Installation accuracy reference: Refer to the table for the reference value of the installation accuracy of the ball screw. The data in the table is for reference only. Please minimize installation errors. The installation accuracy of the motor support and coupling affects the walking and positioning accuracy of the workbench, so attention should be paid to the ball screw.
Unpacking: Be careful not to hit the nut and end thread. When disassembling the nut, you can manually rotate the nut from one end of the effective thread to the other end. Check whether the resistance is consistent and whether there is obvious bending. Be careful not to disengage the nut screw from the effective thread. Wipe off the surface anti-rust oil and apply lubricating oil.
Maintenance: When the linear speed is less than or equal to 30m/min, grease can be used for lubrication. According to the working conditions, grease should be injected every 300 to 600 working hours. It is recommended that oil lubrication be 30-60m / min, va majburiy yog 'tumanini moylash 60 deb hisoblanishi mumkin-100m/min. Bo'shliq vintni buyurtma qilish va majburiy sovutish va moylashni qabul qilish tavsiya etiladi. Ish muhitini toza tuting va chang va boshqa aralashmalarning poyga yoki yong'oqqa kirishiga yo'l qo'ymang. Vaziyat yaxshi bo'lmasa, vintlardek himoya qopqog'ini qo'shishni o'ylab ko'ring.
Ball screws are usually used where precise positioning is required. The ball screw has high mechanical efficiency, low transmission torque and almost zero axial clearance, making it an important device in tool positioning and aileron drive applications. However, the resistance and heat generated by continuous operation may cause large friction and positioning errors. Increasing the design coefficient of the ball screw friction will also increase the torque, which in turn affects the positioning accuracy. When the ball is pressed between the ball screw nut and the screw shaft, the wedge effect is a potential source of friction. When rotating in the forward direction, the ball is usually pressed on the nut; on the contrary, the ball is squeezed on the screw shaft. Since the sliding friction coefficient is much larger than the rolling friction coefficient ({{0}}.1-0.3 when there is no movement, 0.001-0.003 when rolling), the wedge effect greatly increases the torque.
Ball screw drive has the following advantages:
①Yuqori uzatish samaradorligi. Bilye vintlarini uzatishning uzatish samaradorligi odatda 20,92 ni tashkil qiladi-10 foiz va oddiy toymasin vida uzatishning uzatish samaradorligi 20,20-0.40.
②Yuqori uzatish aniqligi, barqaror harakat va emaklash hodisasi yo'q. Bilyali vintli haydovchi asosan aylanma ishqalanishdir, kichik ishqalanish qarshiligiga ega va ishqalanish qarshiligi harakat tezligiga deyarli hech qanday aloqasi yo'q.
③Bo'shashmasdan teskari vitesda ishlash. Bilyali vint va gaykani-oldindan mahkamlangandan so'ng, eksenel bo'shliqni yo'q qilish mumkin. Shu tarzda, qarama-qarshi yo'nalishda o'lik zona yo'q va eksenel uzatishning aniqligi va qattiqligi yaxshilanadi.
④U qayta tiklanadigan. Bilya vintining ishqalanish yo'qolishi kichik bo'lgani uchun uni aylanma harakatdan chiziqli harakatga aylantirish mumkin, shuningdek, chiziqli harakatdan aylanma harakatga aylantirilishi mumkin. Qo'rg'oshin vinti ham, gayka ham haydovchi yoki izdosh sifatida ishlatilishi mumkin.
⑤Uzoq xizmat muddati. Rolling ishqalanishning kichik ishqalanish yo'qolishi tufayli xizmat muddati uzoq.
As a precise and labor-saving transmission mechanism, the ball screw is widely used in precision machine tools and CNC machine tools due to the above advantages.
Why not give us a linear challenge?
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