In fact, every product has a certain purpose when it is manufactured, it just varies in quantity. Today, the product we want to introduce is the ROP-203HA oil pump, which is a model with a small flow rate in the 2HA series. It is not used on many platforms.
Compared with the ROP-203HA oil pump, the ROP-204HA oil pump is used more frequently, which may also be related to the production equipment requirements of customers. Over the years of development, the Weiliang brand has gradually become known to people.
However, we must also keep innovating and optimizing products continuously, so that customers' trust will be higher. According to requirements, accessories such as motors or pressure regulating valves can be matched. If you need a pre-filter, we also have it.
We sincerely hope our products can meet your needs. Let's work together to move towards tomorrow.
The ROP-203HA oil pump is a core power component that converts mechanical energy into hydraulic energy or pressure energy, and realizes the transportation, pressurization or circulation of liquids (such as engine oil, fuel, hydraulic oil, etc.). It is widely used in fields such as automobiles, machinery manufacturing, aerospace, petrochemical industry. Its characteristics need to be comprehensively analyzed in combination with working principles, performance indicators, structural design and differences between different types, and it can be specifically divided into the following core dimensions:
Common core characteristics
No matter what type of oil pump, it has the following basic characteristics, which are the key to realizing its function of "liquid transportation and pressurization":
Essence of energy conversion
Its core function is to convert the mechanical energy (rotational or reciprocating motion) of power sources such as motors and engines into the pressure energy of liquid, and promote the liquid to flow in the pipeline by establishing a pressure difference (for example, the automobile fuel pump pressurizes the low-pressure fuel in the fuel tank and then transports it to the engine fuel injector).
Extremely high sealing requirements
The interior of the oil pump (such as the pump cavity, the mating surface between the piston/rotor and the housing) must be strictly sealed. If there is leakage, it will directly lead to pressure drop, insufficient flow, or even failure to work normally. Therefore, the material (oil resistance, high temperature resistance) and assembly accuracy of sealing parts (such as sealing rings, gaskets) are core design indicators.
Dependent on liquid medium for lubrication
Most oil pumps do not have an independent lubrication system, and need to rely on the conveyed liquid (such as engine oil, hydraulic oil) to lubricate internal moving parts (such as gears, bearings, plungers). If the medium is missing or polluted, it is easy to cause parts wear, sticking and shorten the service life.
Performance is greatly affected by medium characteristics
The viscosity, cleanliness and temperature of the conveyed liquid directly affect the efficiency of the oil pump:
Excessively high viscosity: The liquid flow resistance is large, the starting load of the oil pump increases, and "air suction" (inability to suck oil) is prone to occur;
Excessively low viscosity: The sealing effect decreases, the leakage increases, and it is difficult to build up pressure;
Medium containing impurities: It will scratch the moving surface and block the oil passage, causing faults (for example, the fuel pump needs to be used with a fuel filter).
Working principle: Convert the mechanical energy output by the motor into hydraulic energy through a pair of meshing gears. When the gears rotate, their teeth mesh with each other, causing changes in the volume of the pump cavity, thereby realizing the oil suction and pressure oil processes, and providing hydraulic energy with a certain flow rate and pressure in the hydraulic system of machine tools or other machinery.
Structural characteristics of the ROP-203HA oil pump: It is mainly composed of parts such as pump body, gears, front cover, rear cover, bearings, and skeleton oil seals. The pump body, front cover and rear cover are made of gray cast iron, the gears are made of high-quality powder metallurgy, the pump shaft is made of 40Cr steel and quenched, the bearings are SF-1 oil-free lubrication bearings or needle roller bearings, and the seal is double-lip rubber. It has the advantages of simple structure, small volume, light weight and convenient maintenance.
Performance parameters: The flow rate range is 2.5-125L/min, the pressure is 2.5MPa, the speed is usually 1450r/min, and the power is 0.1-1.5kw.
Advantages: It has good self-priming performance and does not need to be filled with oil when starting. It is convenient to install and use, has good adaptability to impact loads, operates smoothly, has low noise, is reliable in work and has a long service life.
Application fields: It is widely used in hydraulic systems of machine tools, textile machinery and other small and medium-sized machinery, as energy sources for hydraulic systems and lubricating oil sources. It can also be used for oil transfer in oil depots, oil tanks, oil drums, etc.
| Machinery & Equipment/General Mechanical Parts/Pumps | |
