Gear / Pinion
Our Services
1.Before sales, we will fully understand the customer's working conditions and recommend the most appropriate material selection to the customer.
2.Provide customers with drawings based on their machine models, spare parts dimensions, etc.
3.After sales, we will continue to pay attention to the usage of the product and provide timely help.
4.Ensure that the quality of the purchased components is impeccable, and the technical parameters absolutely meet national standards.
5.Provide free quotation, worldwide sales, short delivery cycle, low price.
In the spare parts system for sand makers (especially large Vertical Shaft Impact (VSI) crushers and cone crushers), the gear and pinion are the core components of the transmission system. They usually appear as a pair, commonly referred to as a "gear set." Their primary function is to efficiently and accurately transfer the rotational power from the motor to the main shaft or eccentric mechanism, thereby driving the rotor or crushing wall to rotate at high speeds for crushing operations.
1. Core Functions: The "Hub" of Power Transmission
Power Conversion and Transmission: The pinion is connected to the motor or gearbox via a drive shaft, transferring power to the meshing gear (main gear). The gear then drives the main shaft or eccentric bushing of the sand maker, generating the powerful crushing force.
Changing the Direction of Transmission: In certain equipment, the gear system (such as spiral bevel gears) is used to convert horizontal rotational power into vertical rotational power, accommodating the structural requirements of vertical sand makers.
Precise Control of Speed and Torque: Through the gear ratio (the ratio of teeth between the gear and pinion), the system achieves speed reduction and torque multiplication, ensuring the sand maker has sufficient crushing torque under heavy-duty operating conditions.
2. Common Types and Material Selection
Common Types:
Spiral Bevel Gears: The most widely used type in sand makers. Featuring curved teeth, they offer a high contact ratio during meshing, resulting in smooth operation and low noise. They can withstand extreme impact loads, making them perfectly suited for the high-speed, heavy-duty conditions of sand making.
Straight Bevel Gears: Relatively simple in structure but tend to generate more noise during high-speed operation. They are typically used in scenarios with lower requirements for operational smoothness.
Material Requirements:
Sand maker gears are usually made of high-quality low-carbon alloy steel (e.g., 20CrMnTi, 17CrNiMo6) or medium-carbon alloy steel (e.g., 40Cr, 42CrMo). After special heat treatment, these materials achieve a "hard exterior and tough interior" characteristic—extremely high tooth surface hardness for wear resistance, while the tooth core maintains toughness to withstand impact without fracturing.
3. Core Machining and Heat Treatment Processes
The quality of the gears directly determines the service life of the sand maker, making the manufacturing process extremely rigorous:
Precision Tooth Profile Machining: Processes such as gear hobbing, shaping, or high-precision gear grinding are typically employed (achieving precision levels of GB 5 or above). This ensures uniform meshing clearance and prevents localized overloading.
Heat Treatment Strengthening: This is the soul of gear manufacturing. Common processes include carburizing and quenching, high-frequency induction hardening, or nitriding. After carburizing and quenching, the tooth surface hardness typically reaches 58-63 HRC, significantly enhancing fatigue resistance and wear performance.
100% Quality Inspection: Before leaving the factory, gears must undergo strict testing, including tooth surface contact pattern tests, meshing inspections, and hardness flaw detection, to ensure there are no internal cracks or machining defects.
Relevant parts
Toggle Plate Seat, Toggle Seat, Toggle Pad
- Categories : Jaw Crusher
- Customization Available : Yes
Service Process
The company's sales network covers all major cities across China, while our R&D and manufacturing products have reached numerous countries and regions in Southeast Asia, the Middle East, Africa, Europe, and beyond, earning widespread acclaim from customers worldwide.
FAQs
We have 30+ years of industry experience, a professional team of engineers, strong production strength and mature equipment.
The company has a complete accessory system to provide you with reliable and fast accessory services, complete models, high-quality and durable accessories.
Engineers personally go to the site for technical training in installation, operation and maintenance to help you solve installation and operation problems.
We provide lifelong service for the equipment we sell, including post-maintenance services.
We have professional technical experts and service teams to tailor solutions for each customer.
The mainframe is designed for continuous heavy-duty operation. Wear parts such as jaw plates, liners and blow bars are made of high-manganese steel or alloy materials, and their service life depends on the material hardness and working hours.
Every machine goes through material inspection, machining inspection, assembly and a full no-load test run before shipment. Inspection records and test videos are provided to customers.
Warmly welcome. You can visit our manufacturing base in person, and remote video inspection is also available for customers from overseas.
Yes. Package orders of a full line or multiple machines usually receive a more favorable price and priority in the production schedule.
Large mainframes are shipped by sea in containers or bulk vessels; smaller machines and spare parts go by container, air freight or international express, with full packaging for moisture and rust protection.