1. Core Functions and Applications
Power Transmission: Through gear meshing, pressure is generated to convert mechanical energy into hydraulic energy, providing a continuous and stable pressure oil source for the hydraulic control system of the compressor.
Flow and Pressure Control: According to the compressor's operating conditions, it provides matching hydraulic flow and pressure to ensure the precise execution of key actions such as intake valve regulation, oil-gas separator discharge, and bearing lubrication.
System Integration: Usually, it is combined with hydraulic oil tanks, filters, relief valves, etc., to form a complete hydraulic circuit, ensuring the cleanliness of the hydraulic oil and the safety of the system.
2. Performance Characteristics
The high-performance gear hydraulic pump of Atlas Copco is designed for the harsh operating conditions of industrial compressors and has the following features:
High Reliability: Precision-machined gears and bearings, combined with wear-resistant materials (such as high-strength alloys or surface hardening treatment), can withstand long-term high pressure and high-frequency operation, reducing the risk of faults.
High Efficiency: Optimized gear tooth profiles and clearances reduce internal leakage and improve volumetric efficiency, reducing energy loss.
Anti-pollution Capacity: Some models are equipped with built-in filters or compatible with high-precision hydraulic oil filters, adapting to possible trace impurities in industrial environments.
Low Noise Operation: Through optimized gear meshing and shock absorption structure design, it reduces operating noise and is suitable for scenarios where noise in the working environment is sensitive.
Wide Operating Condition Adaptability: It can operate stably within a wide temperature range (usually -20°C to above 100°C) and pressure range, matching the variable operating conditions of the compressor.
3. Maintenance and Replacement Key Points
Regular Inspection:
Monitor the pump body temperature, vibration, and noise. Abnormal increases may indicate gear wear or bearing failure.
Check the hydraulic oil level, oil quality (whether it is emulsified, contaminated, or aged), and replace the hydraulic oil in a timely manner according to specifications (usually anti-wear hydraulic oil, such as ISO VG 46).
Clean or replace the hydraulic oil filter to prevent impurities from entering the pump and exacerbating wear.
Replacement Guidelines:
Prioritize the use of Atlas Copco original gear hydraulic pumps to ensure compatibility with the hydraulic system parameters of the compressor model (such as GA, GR, ZR series), including pressure rating, flow specification, interface size, etc.
During replacement, thoroughly clean the hydraulic circuit to avoid contamination of the new pump by residual impurities, and simultaneously check the seals (such as O-rings) and replace them to prevent oil leakage.
After installation, perform an Exhaust operation to avoid cavitation damage to the pump body.
