Precision gears for oil pump distribution motors are vital components that ensure high performance and reliability. Made from high-strength alloy steel and treated for enhanced durability, these gears feature optimized involute profiles and high manufacturing precision. They offer high efficiency, low noise, and long service life, with radial and face runout controlled within 0.01 mm and surface roughness below 0.4 µm. Suitable for various industrial hydraulic systems, including construction, agricultural, and mining machinery, they operate reliably under high pressure and load. Proper lubrication and sealing further enhance their stability and efficiency.

Detailed Description of Precision Gears for Oil Pump Distribution Motor

Precision gears for oil pump distribution motors are crucial components, and their design and manufacturing precision significantly impact the overall performance, efficiency, and reliability of the motor. Below is a detailed description of these precision gears, including their structure, functions, performance characteristics, and a parameter table.

1. Structure and Function

• Gear Material: Typically made from high-strength, high-toughness alloy steel, such as 20CrMnTi or 42CrMo. These materials offer excellent mechanical properties and wear resistance, capable of withstanding high loads and frequent start-stop operations. The gear surface is treated with carburizing and quenching, achieving a hardness of HRC 58-62 to enhance wear resistance and fatigue strength.
• Gear Design: The gear profile is precisely calculated and optimized, employing an involute tooth profile to ensure smooth and efficient transmission during operation. The gear module usually ranges from 1.5 to 2.5, with the number of teeth determined by specific application requirements, typically between 18 and 28. The manufacturing process includes precision forging, heat treatment, grinding, and fine machining to ensure dimensional accuracy and surface finish.
• Support Structure: The gear is typically mounted on high-precision bearings, such as deep groove ball bearings or cylindrical roller bearings, to ensure stability and precision during operation. The bearing accuracy grade is usually P5 or P6, capable of withstanding high speeds and loads.
• Lubrication and Sealing: Proper lubrication is essential for the gear during operation, usually achieved through splash lubrication or pressure lubrication. Additionally, the gear housing is equipped with sealing devices, such as skeleton oil seals or labyrinth seals, to prevent lubricant leakage and the ingress of external contaminants.

2. Performance Characteristics

• High Precision: The manufacturing precision of precision gears ensures the efficient operation and precise control of the oil pump distribution motor. The radial runout and face runout of the gears are controlled within 0.01 mm, with a surface roughness (Ra) value of less than 0.4 µm.
• High Efficiency: The design and manufacturing of precision gears enhance the hydraulic, mechanical, and volumetric efficiency of the oil pump distribution motor. By optimizing the gear profile design and manufacturing processes, energy losses during operation are minimized, improving transmission efficiency.
• Low Noise: The optimized gear profile design and manufacturing processes ensure low noise levels during operation. The meshing noise of the gears is kept below 70 dB, providing users with a quieter working environment.
• High Reliability: The material and manufacturing processes of precision gears ensure their reliability under high load and frequent operation conditions. The service life of the gears can exceed 10,000 hours, meeting the long-term stable operation requirements of industrial hydraulic systems.

3. Applications

Precision gears for oil pump distribution motors are widely used in industrial hydraulic systems, such as construction machinery, agricultural machinery, construction equipment, and mining machinery, to meet the demands for high pressure and high flow hydraulic power transmission. Their main applications include:

• Construction Machinery: Such as excavators, loaders, and bulldozers, used to drive hydraulic pumps and motors to provide hydraulic power.
• Agricultural Machinery: Such as combine harvesters and tractors, used to drive hydraulic systems to achieve functions like hydraulic lifting and steering.
• Construction Equipment: Such as concrete pump trucks and tower cranes, used to drive hydraulic systems to transport materials and lift equipment.
• Mining Machinery: Such as hydraulic supports and rock drills, used to drive hydraulic systems for mining extraction and material transportation.

Parameter Table