Luoyang Yujie Industry&Trade Co., Ltd is one of the most experienced manufacturers and suppliers of large gear ring for ball mill in China. Please feel free to buy cheap large gear ring for ball mill for sale here from our factory. All customized products are with high quality and competitive price.
Products Description
Large Ring Gear for ball mill or Girth Gear are the main component of rotary kiln and ball grinding mill which is required to be operated in a long time. These gears are one of the highest cost components in the entire drive assembly. The girth gears have a very big diameter and high precision finish. The girth gears have a high efficiency and its overall life depends upon the proper lubrication and alignment.
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Advantages
•Products with Customers' Designs
•Strong Machining & Heat Treatment Abilities
•Strict Quality Control
•Prompt Delivery
•Experience in Cooperation with Fortune 500 Companies
machinery processing of large ring gear for ball mill
Rough machining
Use CNC vertical lathe to rough turn the gear ring blank, process the outer circle, inner hole, and end face, leave machining allowance, lay the foundation for subsequent processes, and roughly mill the tooth shape to remove most of the allowance.
Heat treatment
Perform quenching and tempering treatment, heat to 840-860℃ quenching, and temper at 580-620℃ to give the gear ring good comprehensive mechanical properties and enhance the hardness of the tooth surface and the toughness of the core.
Finishing
Fine turning the outer circle, inner hole, and end face to achieve the dimensional accuracy and surface roughness required by the drawing; use a hobbing machine or a gear shaping machine to fine mill the tooth shape, strictly control the tooth shape and tooth direction errors, and ensure the meshing accuracy; grind or polish the tooth surface to reduce the surface roughness and improve the transmission stability.
Gear milling
The large ring gear for ball mills are mostly cast steel split components, characterized by large dimensions, high module, and high residual stress. Machining utilizes floor-type boring machines and large gantry milling machines as core equipment, supplemented by gear hobbing machines for finishing. The blank undergoes aging treatment to eliminate internal stress, followed by roughing and finishing of the inner and outer diameters, end faces, and mating surfaces. A layered, segmented, symmetrical gear milling method is employed, suitable for conditions with large tooth depths and large cutting allowances. Heavy-duty carbide tools are selected to reduce cutting vibration and thermal deformation. Floor-type boring machines and gantry milling machines offer large strokes and high rigidity, meeting the requirements for clamping and forming milling of ultra-large diameter gear rings. Gear hobbing machines are used for subsequent tooth profile finishing, correcting tooth direction and pitch errors. After machining, deburring and flaw detection are performed to ensure heavy-load meshing accuracy and operational reliability.
Applications
--Mining
--Metallurgy
--Power Generation
--Sugar Industry
--Cement Plant
--Port Machinery
--Oil and natural
--Paper making
--OEM gear case
--General Industrial
Test for large Ring Gear for ball mill
•QA DOC: Chemical Composition Report, Mechanical Properties Report, UT Report, Heat Treatment Report, Dimensions Check Report
•The data on chemical composition report and mechanical properties report are approved by third party, Luoyang Ship Material Research Institute,
CSIC.
•UT test: 100% ultrasonic test according to EN10228-3, SA388, Sep 1921 C/c etc.
•Heat Treatment Report: provide original copy of heat treatment curve/time table.
Contact Us
Do you have any specific questions about the Large Dia Gear Ring? Contact Yogie! Our sales engineers will work with you from start to finish to ensure that your project is completed to your requirements.
Mobile/WhatsApp: +86-15036387078 (Sara)
Email: sales@yujieindustry.com
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