Ntau yam khoom siv yuav tsum yog qhov tseeb, yog li lawv muaj txiaj ntsig. Txawm li cas los xij, thaum lub pob ntsia hlau ua haujlwm, qhov kub thiab txias yuav cuam tshuam rau qhov tseeb ntawm cov khoom siv, tshwj xeeb tshaj yog qee qhov siab - cov tshuab ua haujlwm. Thiab yam twg yuav ua rau qhov kub thiab txias ntawm lub pob ntsia hlau?
The elements of temperature rise are basically these three types: 1. Pre-pressure 2. Smooth 3. Pre-tensioning
1. The influence of pre-pressure
In order to prevent any loss of step of the mechanical transmission system, it is important to improve the rigidity of the nut. However, to improve the rigidity of the nut, it is necessary to make the preload of the nut reach a certain level. Applying pre-pressure to the nut will increase the conflicting torque of the screw and increase the temperature rise during operation.
HIWIN tawm tswv yim hais tias qhov nruab nrab thiab hnyav preload yog 8 feem pua ntawm cov dynamic load; qhov nruab nrab preload yog 6 mus rau 8 feem pua; qhov nruab nrab thiab lub teeb preload yog 4 feem pua rau 6 feem pua; Lub teeb preload yog qis dua 4 feem pua, thiab qhov hnyav tshaj preload yuav tsum tsis pub tshaj 10 feem pua Lub dynamic load kom tau txais lub neej zoo tshaj plaws thiab txo qhov kub thiab txias.
2. The effect of smoothness
The selection of smooth oil directly affects the temperature rise of the ball screw. HIWIN ball screw must be smoothed with oil or grease. Generally, it is recommended to use bearing lubricating oil as ball screw lubricating oil, and for grease, it is recommended to use lithium soap-based grease. The choice of oil viscosity is based on operating speed, operating temperature and load conditions.
It is best to choose low-viscosity oil when the working condition is high speed and low load; when low speed and high load, it is recommended to use high viscosity oil. Generally speaking, it is recommended to use the viscosity index scale of 32-68 CST (ISO VG 32-68) (DIN 51519) thaum cov roj lubricating yog 40degree; Kev them nyiaj yug yog ua los ntawm ua ntej- rub; thiab lub hom phiaj tus nqi ntawm ua ntej- rub nyiaj them yog qhov tsis zoo T tus nqi qhia ntawm daim duab. Ntau dhau pretension yuav hlawv cov kabmob txhawb nqa, yog li HIWIN cov neeg txhawb nqa siv tus nqi pretension tsawg dua 5degree, tab sis nws tsis haum rau pretension yog hais tias tus ntsia hlau txoj kab uas hla tshaj 50 hli; ib tug loj ntsia hlau txoj kab uas hla yuav tsum tau ib tug loj pretension quab yuam, uas ua rau kev txhawb nqa lub bearing yog overheated thiab hlawv tawm.
Tiv tauj peb
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