Classification
Grinding roller hub (roller core assembly / grinding roller housing)
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Product details
I. Product Positioning
This piece is the core main bearing cast steel component of the vertical roller mill, also known as the grinding disc base. It is the basic supporting component for the power transmission and material grinding of the entire machine. The upper end is equipped with the grinding disc liner, and the lower end is connected to the output shaft of the main reducer, bearing all the grinding pressure and material impact loads.
II. Structural Features
1. Top Precision Flange Head The CNC precision machined cylindrical main shaft and ring-shaped bolt flange are used for positioning and fixing the grinding disc liner, with high coaxiality accuracy, ensuring smooth rotation and avoiding vibration during operation.
2. Conical Reinforcement Shell The integrated casting of thickened radial ribs throughout the body, in a lower-wide-upper-narrow conical structure, significantly enhances the overall rigidity, dispersing the huge alternating stress generated by the grinding rolls, and preventing cracking and deformation.
3. Bottom Connecting Flange The precision machined bottom flange is rigidly connected to the output end of the main reducer, completely transmitting the motor-driven torque, achieving uniform rotation of the grinding disc.
III. Core Materials
It uses high-strength alloy cast steel (ZG35CrMo, ZG42CrMo), which undergoes annealing to relieve stress and quenching and tempering heat treatment, possessing high toughness, anti-fatigue, and anti-shock properties, suitable for long-term heavy-load continuous production conditions.
IV. Main Functions
1. Power Transmission: Accepting the torque from the reducer, driving the entire grinding disc to rotate, completing the grinding and powdering of the materials;
2. Load Bearing and Buffering: Bearing all the pressure of the grinding disc liner, materials, and grinding rolls, buffering the impact of large pieces of ore;
3. Assembly Base: Serving as the
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Working principle: Integrating mechanical, hydraulic, electrical, automation and other technologies, the horizontal shaft is driven by an electric motor to rotate, and the eccentric sleeve is driven by gears to rotate, thereby driving the dynamic cone to make circular oscillations, achieving continuous extrusion and crushing of materials. The crushing chamber is optimized in design, and the crushing effect is not affected by liner wear.
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Smelting equipment (blast furnace, converter, electric furnace supporting equipment)
Core positioning: The core equipment for coarse crushing of large materials is mainly used at the front end of the crushing production line to crush large raw materials (with a maximum feed particle size of 1200mm) to ≤ 80mm, laying the foundation for subsequent crushing processes. It is an essential front-end equipment for cement and mining production lines. Working principle: Adopting the principle of squeezing and crushing, the large pieces of material falling between the fixed jaw plate and the moving jaw plate are squeezed and crushed through the reciprocating biting motion of the two jaw plates, achieving coarse crushing processing. It is divided into two types: single elbow plate and double elbow plate. The single elbow plate model has higher production capacity and is suitable for high-yield demand scenarios. Core advantages: simple structure, convenient operation, long service life of wear-resistant parts, large crushing ratio, stable output, suitable for high hardness materials (such as limestone and iron ore), low maintenance cost, suitable for various types of production lines from small to large. Adaptation scenarios: coarse crushing of raw materials in cement production lines, coarse crushing in mining, raw material crushing in sand and gravel yards, coarse crushing in construction waste recycling, etc. Corresponding images (high-definition without watermark, available for direct image search): actual photos of the entire jaw crusher, close-up shots of the jaw crusher feed inlet, jaw crusher mining site, and details of the jaw crusher transmission device.
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