Customizable Rotary Kiln And Mill Girth Gear Ring Gear Pinion Gear
1. Technical requirements of large gear ring for mill girth gear
(1) The surface pretreatment before quenching is normalized, and the hardness should be HB210~250; Mechanical properties are strength limit Rb690MPa, yield limit Rs490MPa, elongation d511%, area reduction w25%, impact toughness value Ak30J. Tooth induction hardening, hardness of HRC50~55; Effective hardening depth 3~5mm.
(2) Ultrasonic inspection shall be carried out on the whole, and the internal quality shall meet the secondary requirements stipulated in GB7233-87 standard; Gear tooth and transition fillet magnetic particle inspection, quality should meet GB/T9444-88 standard requirements.
(3) Uncast rounded corners R5~R10.
(4) Chamfering of both ends and edges along the tooth width. Big gear ring by two half gear ring connected with high strength bolts into a whole gear ring, the joint surface must be in the center of the tooth bottom.
Mill Girth Gear
2. Product parameters of big ring for mill girth gear
| The big gear ring | ⑴GS42CrMo4 alloy cast steel (enterprise standard) HB 220 ~ 240 The half structure, Y type plate. (3) oblique tooth. (4) Reasonable sealing and alignment structure. | ⑴ Outside refining of molten steel furnace (argon blowing and R-H vacuum treatment). (2) The special cold mold sand hanging technology is adopted to ensure the density of casting and tooth. (3) Normalizing treatment (proprietary technology) to ensure tooth surface hardness. (4) After rough hobbing, release aging, repair the joint surface, and then fine rolling ⑸ homemade hob precision hobbing. | ⑴ Mechanical properties and chemical composition of casting blank (internal control standard). (2)The ultrasonic crack detection after rough machining. ⑶ half finishing, finishing ultrasonic inspection and magnetic particle inspection. (4) Tooth surface magnetic particle inspection, hardness inspection. ⑸ Check tolerance of tooth profile. ⑹ No-load test of general assembly before delivery, check the meshing accuracy of large and small gears. |
Mill Girth Gear
Mill Girth Gear Ring Gear Pinion Gear
Company Information Luoyang Zhongtai Industrial Co., Ltd. is located in Luoyang National University Science Park, Longyu Road, Jianxi District, Luoyang City, Henan Province. It is a professional company integrating development, design, installation, commissioning, sales and technical services of mining machinery products. Business scope includes: mining equipment, metallurgical equipment, construction equipment, construction machinery, power machinery, stone chemical equipment, electrical equipment, agricultural machinery, hydraulic equipment and accessories, refractory materials, warehouse color, casting and forging sales, mechanical equipment, energy-saving and environmental protection equipment technology research and development, consultation, installation, maintenance, project contracting. Our company has independent legal personality and foreign trade import and export business qualification, engaged in import and export business of goods and technology.
Mill Girth Gear
Depending on our company's strong scientific research ability and production and sales ability, relying on advanced and mature production technology in Luoyang mining machinery industry cluster area, we have cooperated with major well-known enterprises at home and abroad to provide technical services and complete sets of equipment for key projects in national mining, metallurgy, building materials, lifting, electric power, non-ferrous metals, environmental protection, chemical industry, petroleum and other industries. Spare parts. Relying on innovative technology, new products and perfect after-sales service, the company has won the trust and support of more and more domestic and foreign customers.
Mill Girth Gear Ring Gear Pinion Gear
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