Customization: | Available |
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After-sales Service: | One Year |
Warranty: | One Year |
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Concrete Mixer Truck PV23 Hydraulic Pump for Danfoss: A Technical Analysis
I. Introduction
The PV23 hydraulic pump designed for concrete mixer trucks within the Danfoss system is an integral part of the vehicle's hydraulic system. It is responsible for providing the necessary power to drive the mixing drum, ensuring the proper mixing of concrete during transportation. This pump is designed with precision to meet the demanding requirements of the construction industry.
II. Design and Construction
A. Housing
The housing of the PV23 pump is a robust structure that provides protection and support to the internal components. It is made from high - quality materials, such as corrosion - resistant alloys, to withstand the harsh conditions of a construction site. The housing is designed to endure exposure to dust, moisture, and chemicals, as well as the mechanical stress from the truck's movement and the vibration of the mixing drum. It features carefully designed mounting points and connection ports for seamless integration into the truck's hydraulic system.
B. Internal Components
1. Pistons
The pistons of the PV23 pump are precision - machined components. They are typically made from hardened steel or specialized alloys with excellent wear - resistance properties. The design ensures a tight fit within the cylinders to minimize internal leakage of hydraulic fluid. The surface of the pistons is finished to a high level of smoothness, reducing friction during their reciprocating motion. This not only improves the efficiency of the pump but also extends the lifespan of the pistons. The size and shape of the pistons are optimized to generate the required pressure and flow rate for the mixer truck's hydraulic system.
2. Cylinders
The cylinders of the PV23 hydraulic pump are crafted with great precision. They are made from materials that can withstand high - pressure environments and maintain their structural integrity over time. The inner walls of the cylinders are machined to very tight tolerances and are often treated with 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 are designed to support the pistons throughout their entire 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 PV23 pump is a complex and crucial 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. To prevent air from being drawn into the system, the inlet valves are engineered with features that minimize the risk of cavitation. 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 play a vital role in maintaining the stability of the hydraulic system. They constantly monitor the pressure within the pump and adjust the flow of fluid as needed to prevent over - pressure or under - pressure situations, thereby protecting the pump and other components of the hydraulic system from potential damage.
Model NO. | PV23 | Model | PV23 |
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 | |
PV23 | 394 | 320 | 270 | 118 | 127 | 49 | 17.5 | 327 | 91 | 77.8 | 95.25 |
Frame Size | Prots | ||
P1,P2,R | Z1,M1,M2 | ||
PV23 | 7/8-14 UNF-2B | 7/16-20 UNF-2B |
Technical data of Mixer hydraulic pressure | |||||
Model | Units | PV23 | Model | Units | PV23 |
Maximum displacement per revolution | cm³ | 89 | 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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P3301 reducer / gearbox | PMP8.0R140 reducer / gearbox | Eaton 6423-279 pump | Eaton 6433 motor |
P4300 reducer / gearbox | PMP9YR140 reducer / gearbox | PV22 pump | MF22 motor |
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P7300 reducer / gearbox | PMP7.5R135 reducer / gearbox | SPV22 pump | SMF22 motor |
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PLM-9 reducer / gearbox | PMP6sp reducer / gearbox | PV070 pump | MF070 motor |
CML-10 reducer / gearbox | PMP 6.5sp reducer / gearbox | PV089 pump | MF089 motor |
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P4300 reducer / gearbox | PMP 6.5cp reducer / gearbox | SPV110 pump | SMF110 motor |
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PMB6R100 reducer / gearbox | 577L reducer / gearbox | SPV090 pump | SMF090 motor |
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PMB7aspR120 reducer / gearbox | 575S3W reducer / gearbox | A4VTG90 pump | TMM089 motor |
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PMB7YR120 reducer / gearbox | 580S3W reducer / gearbox | 90A pump | AA2FM80/A2FM90/62W Piston Motor |
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PMB7.1R130 reducer / gearbox | PM61.2 reducer / gearbox | PMP P110 pump | 90M75 motor |
PMB7.5R130 reducer / gearbox | PM71.2 reducer / gearbox | PMP P90 pump | 90M100 motor |
PMB7.8R140 reducer / gearbox | TMG51.2 reducer / gearbox | PMH P110 pump | MSF85 motor |
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ZTS P68 reducer / gearbox | ZHP P75S reducer / gearbox | A4VG180HD1MT1/32R-NSF02F021-S PISTON pump | 8708919000 |
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