Characteristics and application scope of hard tooth surface reducer

Hard tooth surface reducers mainly include parallel axis series and vertical axis series. Parallel axis reducers are produced according to the national standard (JB/T8853-200.1) and are classified into four series: ZDY (single-stage), ZLY (two-stage), ZSY (three-stage), and ZFY (four stage). Vertical axis reducers are produced according to the national standard (GB/T9002-1999) and are used as transmission devices with input and output shafts arranged vertically.

1、 Characteristics of Hard Gear Reducer:

1. The main parameters such as center distance and transmission ratio have been optimized and designed.

2. The gears are made of high-quality alloy steel that has been carburized and quenched. The tooth surface hardness reaches 54-62HRC.

3. Light weight, small size, high precision, large load-bearing capacity, high efficiency, long lifespan, high reliability, smooth transmission, and low noise.

4. Generally, oil pool lubrication is used Natural cooling. When the thermal power cannot be met, circulating oil lubrication or a fan with a cooling coil can be used for cooling.

2、 Application scope of hard tooth surface reducer:

1. The input speed is generally n, ≤ 1500r/min.

2. The circumferential speed of gear transmission shall not exceed 20mis.

3. The working environment is -40-50 ℃. For environments below 0 ℃, the lubricating oil should be preheated to above 0 ℃ before starting. Hard toothed reducers can operate in both forward and reverse directions.

4. Hard tooth surface reducers are widely used in industries such as metallurgy, mining, chemical engineering, building materials, lifting, transportation, textiles, papermaking, instrumentation, plastics, rubber, construction machinery, and energy.

Characteristics of Hard Gear Reducer
1. Material and process advantages
High strength material: The gears are made of high-strength low-carbon alloy steel (such as 20CrMnTi) that has undergone carburizing and quenching treatment. The tooth surface hardness can reach HRC54-62, significantly improving wear resistance and fatigue resistance.

Precision machining: using CNC gear grinding technology, the gear accuracy reaches international standard level 6, the tooth surface contact is good, the transmission efficiency is as high as 95% -98%, the operation is smooth and the noise is low by 1310.

2. Optimize design and performance
Computer optimized design: Gear parameters and structure are optimized by computer, and priority number systems are used for center distance, transmission ratio, etc. to ensure standardization and interchangeability.

High carrying capacity: The carrying capacity reaches the international advanced level in the 1990s, and the theoretical maximum transmission power can reach 50000kW, suitable for heavy-duty scenarios.

Modular design: supports flexible combinations, facilitates adaptation to different device requirements, reduces costs, and shortens production cycles by 410.

3. Structure and maintenance convenience
Compact and lightweight: Small in size and lightweight, suitable for industrial environments with limited space.

Easy to install and maintain: adopting standardized interface design, easy to disassemble and replace parts, and some wear can be repaired by electroplating (such as shaft hole key groove wear).

4. Environmental adaptability
Wide temperature range operation: Suitable for environmental temperature range of -40 ℃ to 45 ℃, lubricating oil needs to be preheated to above 0 ℃ in low-temperature environments.

Multiple lubrication methods: default oil pool splash lubrication, can switch to circulating oil or install cooling device 67 when high temperature or high load.

 
Application scope of hard tooth surface reducer
1. Heavy industry sector
Metallurgy and Mining: Used for power transmission of equipment such as rolling mills, ore crushers, and hoists, capable of withstanding high loads and continuous operations.

Lifting and Transportation: Widely used in bridge cranes, port loading and unloading equipment, and belt conveyors, the QY/QJY series is designed specifically for cranes, supporting frequent start stop and high torque demands.

2. Construction and building materials industry
Cement production: Drive equipment such as ball mills and rotary kilns to adapt to harsh environments with high dust and large temperature differences.

Construction machinery, such as concrete mixers and tower crane transmission systems, rely on their high reliability and long lifespan.

3. Chemical and Light Industry
Chemical equipment: used for reactor stirring, pump transmission, corrosion-resistant design to meet the requirements of chemical environment.

Textile and Printing and Dyeing: Drive spinning machines and printing and dyeing rollers, with low noise characteristics to ensure a working environment in the workshop.

4. Other fields
Pharmaceutical and food processing: Small gearboxes that meet hygiene standards are used for filling lines and packaging machinery.

Energy and Transportation: Applied in special scenarios such as wind power variable pitch systems and ship power transmission