Wear-Resistant, Low-Noise Rotary Kiln Large Gear Ring Large Industrial Accessory
Product Introduction
The ball mill gear, also known as the large gear ring, is usually installed on the end cover of the ball mill. According to its structure, the ball mill gear can be divided into three types: full gear ring, half gear ring and quarter gear ring.
Technical requirements
1) The pretreatment before surface quenching is normalizing treatment, and the hardness should be HB210~250; the mechanical performance indicators are strength limit Rb690MPa, yield limit Rs490MPa, elongation D511%, cross-sectional shrinkage W25%, and impact toughness value Ak30J; the gear teeth are induction hardened, and the hardness is HRC50~55; the effective hardened layer depth is 3~5mm.
2) The whole is subjected to ultrasonic flaw detection, and the internal quality should meet the secondary requirements specified in GB7233-87 standard; the gear teeth and transition fillets are subjected to magnetic particle flaw detection, and the quality should meet the secondary requirements specified in GB/T9444-88 standard.
3) The large gear ring is composed of two half gear rings connected by high-strength bolts to form an integral gear ring, and the joint surface must be at the center of the tooth bottom.
Structure and Function
The large gear of the ball mill is located in the rotating part of the ball mill. It meshes with the small gear and transmits power to the ball barrel through the transmission shaft to make it rotate. The large gear bears large torque and axial force, and its quality and strength are crucial. If there is a problem with the large gear, it may cause the ball barrel to not rotate normally, thus affecting production efficiency and product quality.
Product Display
Product Parameters
| (1) GS42CrMo4 alloy cast steel (Enterprise Proprietary standard) HB 220-240 | (1) Ladle refining of molten steel (argon blowing and R-H vacuum treatment) | ⑴ Mechanical properties and chemical composition of casting blanks (internal control standards) |
| ⑵ Half-length structure, Y-shaped sheet | ⑵Use the exclusive cold mold sand hanging technology to ensure the density of castings and teeth | ⑵ Ultrasonic flaw detection after rough machining |
| (3)helical tooth | ⑶ Normalizing treatment (proprietary technology) ensures the hardness of the tooth surface | ⑶ Ultrasonic flaw detection and magnetic particle flaw detection after semi-finishing and finishing |
| ⑷ Reasonable sealing and alignment structure | ⑷ After rough hobbing, loosen the gear, repair the joint surface, and then fine hobbing | ⑷ Magnetic particle flaw detection and hardness inspection of tooth surface |
| | (5) Specialized self-made hob precision gear hobbing | ⑸ Tooth profile tolerance inspection |
| | | ⑹ No-load test run before delivery to check the meshing accuracy of large and small gears |
Q&A
Q: Why we believe in luoyang zhongtai industries co., ltd:
A: 1. More than 30 years experience.
2.We are the leading professional supplier of mining machinery, construction machinery, machines casting and forged parts.
3. All products achieved ISO9901:2000 quality management certificate and CE, ROHS certificates.
Q:Delivery time?
A: Parts lead time 1-2months, machines 2-3months.
Q:Payment terms?
A: Accept payment type: T/T, L/C, Western union,Cash.
30% deposit when signed contract. Full payment paid before shipping
Q: Quality warranty?
A: Guarantee time: one year for main machinery. If something wrong we will provide the technical advice and find solution immediately. For those wearing parts we guarantee high quality parts for long-term supply.
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Wear-Resistant, Low-Noise Rotary Kiln Large Gear Ring Large Industrial Accessory Images
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