Which Type of Hydraulic Pump Used in Excavator? | Kyotechs
Which Type of Hydraulic Pump Used in Excavator: A Comprehensive Guide
In the ever-evolving field of construction machinery, the hydraulic pump plays a pivotal role, especially in excavators. These powerhouses transform mechanical power into hydraulic energy, enabling the various functionalities of excavators from movement to digging. we delve into the various types of hydraulic pumps used in excavators and how Kyotechs provides unparalleled solutions for your machinery needs.
Introduction to Hydraulic Pumps in Excavators
Hydraulic systems are the lifelines of excavators, and at the core of these systems are hydraulic pumps. These pumps convert mechanical power from the engine into hydraulic energy, which powers the movement of the excavator's arm, boom, and attachments. The right choice of hydraulic pump is critical for efficient operation, influencing both performance and durability.
Types of Hydraulic Pumps Used in Excavators
Understanding the types of hydraulic pumps can guide operators in making informed decisions about maintenance and replacements. Here are the main types commonly used in excavators:
1. Gear Pumps: Simple and robust, gear pumps are known for their durability and ease of maintenance. They consist of two gears meshing together to create a flow of hydraulic fluid. While they are cost-effective, their efficiency is generally lower compared to other types. Gear pumps are suitable for low-pressure applications.
2. Vane Pumps: Vane pumps are often used for medium-pressure applications. They consist of vanes mounted on a rotor, which spins inside the cavity. The movement of the vanes creates a vacuum that helps in drawing and pushing the fluid. These pumps offer better efficiency than gear pumps but aren’t as robust.
3. Piston Pumps: Known for high efficiency and versatility, piston pumps cater to high-pressure operations. They use multiple pistons moving in a cylinder to create pressure and flow. Although more expensive, they provide the best performance and are often used in high-demand excavators.
Each type has its specific use case, determined by the unique demands of the excavation task at hand. Selecting the appropriate hydraulic pump ensures that your excavator operates at optimal performance levels.
Why Choose Kyotechs for Your Excavator Needs?
Established in 2009, Kyotechs has swiftly risen to become a leader in the excavator parts industry. We provide a full range of replacement parts for various brands, such as Hitachi, Sany, Kawasaki, Volvo, Hyundai, Doosan, Komatsu, Caterpillar, Case, and Kobelco. Our product line includes:
- Engine Assemblies and Parts: Ensure your excavator runs smoothly with our reliable engine components.
- Hydraulic Pumps and Parts: State-of-the-art hydraulic pumps to match any operational need.
- Hydraulic Motor Assemblies and Parts: High-performance motor assemblies for efficient power transfer.
- Control Valve Assemblies and Parts: Precision engineering for effective control and operation.
- Cylinder Assemblies and Seal Kits: Comprehensive kits for maintenance and repair.
- Driving Cabin Assemblies and Inside Parts: Enhance operator comfort and control with High-Quality cabin parts.
- Electric Parts, Undercarriage Parts, Mini Excavator Solutions: Full-fledged solutions for every aspect of the excavator's operational lifespan.
With our "One-Stop Excavator Software Solution," "One-Stop Engine Repair Solution," and "One-Stop Hydraulic Repair Solution," Kyotechs ensures that customers receive complete support for their machinery needs, from procurement to maintenance.
Conclusion
In the realm of excavators, the type of hydraulic pump utilized profoundly affects productivity, efficiency, and operational costs. By understanding gear, vane, and piston pumps, operators can make better-informed decisions suitable for their specific machinery demands. Kyotechs stands as a trusted partner, offering top-notch parts and solutions, ensuring your excavators function optimally and efficiently.
FAQs
Q1: What types of hydraulic pumps are best for high-pressure operations in excavators?
A1: Piston pumps are best suited for high-pressure operations due to their efficiency and capability to handle high demands.
Q2: What are the advantages of using gear pumps in excavators?
A2: Gear pumps are favored for their simplicity, robustness, and cost-effectiveness in low-pressure applications.
Q3: How can Kyotechs assist with hydraulic pump replacement?
A3: Kyotechs provides a comprehensive range of hydraulic pumps and repair solutions for various excavator brands, ensuring optimum performance.
Experience seamless operations and superior quality with Kyotechs—your go-to source for reliable excavator parts and solutions.
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FAQS
Digging powerlessness is one of the typical faults of excavators
Digging powerlessness can be divided into two situations: one is digging powerlessness, the engine does not hold back, and the load feels very light; the second is digging powerlessness, when the boom or dipper stick is extended to the bottom, the engine is seriously held back or even stalled.
①, digging powerlessness but the engine does not hold back. The magnitude of the digging force is determined by the output pressure of the main pump, and whether the engine holds back depends on the relationship between the oil pump absorption torque and the engine output torque. The engine does not hold back, indicating that the oil pump absorption torque is small and the engine load is light. If the working speed of the excavator is not obviously abnormal, the maximum output pressure of the main pump, that is, the system overflow pressure, should be checked in particular. If the overflow pressure measurement value is lower than the specified value, it indicates that the overload overflow valve setting value of the hydraulic circuit of the mechanism is incorrect, resulting in premature overflow of the mechanism and powerlessness. The machine can be adjusted by turning the adjustment screw.
②, digging powerlessness, engine holding back. The engine holding back indicates that the absorption torque of the oil pump is greater than the engine output torque, causing the engine to overload. This fault should first check whether the engine speed sensing system is normal, and the inspection method is similar to the engine inspection method described above. After the above detailed inspection and troubleshooting, the engine speed sensing system will resume normal function, the engine stalling phenomenon will disappear, and the digging force will return to normal.
Why should I change the engine oil regularly?
Regularly changing the engine oil helps maintain the lubrication performance of the engine, prevent wear and extend the service life.
What is the maintenance frequency of the hydraulic pump?
The maintenance frequency of the hydraulic pump is usually performed every 1000 to 2000 hours of operation or once a year according to the manufacturer's recommendations.
What are the reasons that may cause the excavator engine to emit blue smoke?
Blue smoke when starting a cold car: It is normal for a cold car to emit blue smoke and disappear after the car is heated, because a small amount of oil will invade the engine combustion chamber after the shutdown. Continuous blue smoke after starting:
1. The diesel filter is clogged, check whether the oil type is correct;
2. The engine piston ring and valve oil seal are worn, affecting the oil in the intake or exhaust pipe, which causes the excavator to emit blue smoke;
3. The clearance between the piston and the cylinder liner is too large, causing blue smoke;
What are the common causes of failure of hydraulic pump control valves?
Common causes of control valve failure include internal wear, seal damage, contamination and valve blockage.
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