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After-sales Service: | One Year |
Warranty: | One Year |
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Concrete Mixer Truck PV110 Hydraulic Pump for Danfoss: A Detailed Account
I. Introduction
The PV110 hydraulic pump in concrete mixer trucks within the Danfoss system is an essential device that provides the necessary power for the operation of the mixing drum. It ensures the smooth and efficient mixing of concrete during transportation, playing a crucial role in the construction process.
II. Design and Construction
A. Housing
The housing of the PV110 pump is built to be robust and durable. It is made from high - quality materials that are resistant to corrosion, as it is often exposed to harsh environments including moisture, dust, and chemicals at construction sites. The structure of the housing is designed to withstand the mechanical stress generated by the truck's movement and the vibration of the mixing drum. It has carefully designed connection ports and mounting points for easy integration into the truck's hydraulic system. These ports and points are precisely engineered to ensure proper alignment and connection with other hydraulic components.
B. Internal Components
1. Pistons
The pistons of the PV110 pump are precision - machined components. They are usually made from hardened steel or specialized alloys with excellent wear - resistance properties. The design ensures a snug fit within the cylinders, minimizing the leakage of hydraulic fluid. The surface of the pistons is highly polished to reduce friction during their reciprocating motion. This not only improves the efficiency of the pump but also extends the lifespan of the pistons. Their size and shape are optimized to generate the required pressure and flow rate for the mixer truck's hydraulic system. The pistons are also carefully balanced to ensure stable operation under high - pressure conditions.
2. Cylinders
The cylinders of the PV110 hydraulic pump are crafted with great precision. They are made from materials capable of withstanding high - pressure environments. The inner walls of the cylinders are machined to very tight tolerances and often have special coatings or surface treatments. These treatments enhance the smoothness of the walls, reducing friction and providing an effective seal with the pistons. The cylinders support the pistons throughout their stroke, enabling efficient transfer of hydraulic fluid during both the compression and expansion phases of the pump's operation.
3. Valve System
The valve system of the PV110 pump is a complex and vital part of its design. It consists of inlet valves, outlet valves, and pressure - control valves. The inlet valves are responsible for allowing the hydraulic fluid to enter the pump from the reservoir. They are designed to open smoothly and without obstruction, ensuring a continuous and laminar flow of fluid. Special features are incorporated to prevent air from being drawn into the system through the inlet valves. The outlet valves direct the pressurized fluid from the pump to the hydraulic motor that drives the mixing drum. These valves are built to withstand high - pressure conditions and open and close with great precision to control the flow of fluid. The pressure - control valves constantly monitor the pressure within the pump and adjust the flow of fluid as needed to prevent over - pressure or under - pressure situations, protecting the pump and other components of the hydraulic system from potential damage.
III. Operating Principle
A. Intake Stroke
During the intake stroke of the PV110 hydraulic pump, the pistons move in a direction that creates a low - pressure area within the cylinders. This pressure differential causes the hydraulic fluid from the reservoir to flow into the pump through the inlet valves. The design of the pump ensures that the fluid intake is a seamless process. The pistons and inlet valves are carefully coordinated to prevent any disruptions in the flow of fluid. Additionally, the intake system is designed to minimize the introduction of air bubbles into the hydraulic fluid. This is achieved through features such as optimized valve sizing and a carefully designed fluid path within the pump.
B. Compression and Discharge
Once the hydraulic fluid has entered the cylinders, during the compression stroke, the pistons move towards each other, reducing the volume of the fluid within the cylinders. This results in an increase in pressure. The pressurized fluid is then forced out through the outlet valves and directed towards the hydraulic motor of the mixing drum. The pressure generated by the pump is sufficient to overcome the resistance of the mixing drum, which includes factors such as the weight of the concrete, friction within the drum bearings, and any external forces acting on the drum during operation. The compression and discharge process is precisely controlled by the design of the pistons, cylinders, and valve system.
Model NO. | PV110 | Model | PV110 |
Performance | Same as Original | Pressure | 36MPa |
Lead Time | 5 Days | Transport Package | Standard Export Wooden Case |
Colour | as Your Request | Usage | Concrete Mixer |
Weight | 85KG | Specification | 52*36*36 |
Trademark | Bodeke | Origin | China |
HS Code | 8413503190 | Production Capacity | 100 Sets/Month |
Frame Size | mm/Dimensions[mm] | ||||||||||
L | L1 | L2 | L3 | L4 | L5 | L6 | L7 | L8 | L9 | L10 | |
PV110 | 394 | 320 | 270 | 118 | 127 | 49 | 17.5 | 327 | 91 | 77.8 | 95.25 |
Frame Size | /Prots | ||
P1,P2,R | Z1,M1,M2 | ||
PV110 | 7/8-14 UNF-2B | 7/16-20 UNF-2B |
Technical data of Mixer hydraulic pressure | |||||
Model | Units | PV110 | Model | Units | PV110 |
Maximum displacement per revolution | cm³ | 110 | Maximum control pressure | MPa | 3.5 |
Pump displacement per revolution | cm³ | 18.03 | Filling pressure | MPa | 0.8-2.0 |
Maximum pressure | MPa | 35 | Maximum shell pressure | MPa | const0.25,Peak value0.5 |
Rated pressure | MPa | 21 | +Maximum revolution | min-1 | 2590 |
The dynamic viscosity range of the working liquid activate turn Optimum state |
mm²S-1 | 1000 12-300 25-35 |
Minimum revolution | min-1 | 500 |
Type of working fluid | Mineral oil | Rated revolution | min-1 | 1500 | |
Operating temperature | ºC | -40~+50 | Shaft steering | clockwise or anticlockwise | |
Maximum operating temperature in the tank | ºC | 80 | Maximum swash plate inclination | ° | ±18° |
Working fluid purity | μm | 10 | Weight(About) kg | KG | 78 |
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