How does machinery reduce the noise of gear in hardware treatment?

Decelerate machine cannot check through leaving factory, one of reasons are loud noise of intermittence of decelerate plane existence. Through relapsing test, analysis is mixed improve an experiment, the conclusion that reach is must undertake be administeringed integratedly to each link of production, ability reduces the noise of positive drive effectively.
1, the precision that controls gear wheel: The main demand of gear precision: Via carrying out test and verify, gear precision must be controlled in GB10995 - 887~8 class, gear of 20m/s of linear velocity prep above, jumpy public errand, teeth directional public errand must stabilize radial of circle of pitch extreme deviation, tine achieve 7 class precision. Below the condition that obtains gear of 7 class precision, tine ministry should pour shuttle, want to take strict precautions against stage of tine root protruding.
2, the quality that controls raw material: High quality raw material is the premise condition that produces high quality product, the material 40Cr with my company the biggest dosage makes gear with 45 steel. Why to no matter pass,plant way, after raw material reachs a plant, want to pass strict chemical composition to examine, brilliant granuality determines, chasteness spends assess. Its purpose is to adjust heat treatment in time to be out of shape, raise tooth form to machine medium quality.
3, prevent heat treatment to be out of shape: Tine base is in forging of essence of rough machining epigenesis, undertake normalizing or move qualitative processing, in order to achieve:
(1) bate steel so that undertake cutting is machined;
(2) eliminate leftover stress;
(3) refine grain, improvement organizes the mechanical function with raising steel;
(4) the preparation of good to can be handled finally textural. What should notice is, in qualitative processing of normalizing or attune, must maintain temperature of the chamber of a stove or furnace even, and employ worker worker implemental, make workpiece heats equably reach refrigeration, forbidden pile up together.
Need bore to reduce the gear of weight, should arrange bore order undertake after heat treatment. The final heat treatment of gear is used make the spare parts is out of shape lesser tooth flank is high frequency quench; High frequency the tooth flank that after quenching, gets has high intensity, hardness, wearability and fatigue limit, and the plasticity that core still maintains enough and tenacity. Be out of shape to decrease. Tooth flank is high frequency quench should use quench temperature is mixed inferiorly shorter heat time, even heat, slow refrigeration.

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