News
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Why is vane pump widely used?
When the rotor of vane pump rotates, under the action of centrifugal force and pressure oil, the tip of vane clings to the inner surface of stator. In this way, the working volume formed by the two blades, the rotor and the inner surface of the stator first absorbs oil from small to large and then discharges oil from large to small. When the blades rotate for one circle, the oil absorption and discharge are completed once. 1、 Working principle of single acting vane pump The pump is composed of r... Read More
21-01-2020 Industry News -
Main principles of selecting hydraulic pump
The primary criterion for selecting a hydraulic pump is the condition demand of the centering system, and on this basis, the output, operating pressure and structural type of the pump are determined. (1) To determine the flow of the extra flow pump of the pump, the highest speed demand of the element shall be implemented satisfactorily. Therefore, the output flow QP of the pump shall be determined according to the maximum flow and the leakage required by the system, that is, QP ≥ kqmax, QP Th... Read More
18-01-2020 Industry News -
How many kinds of common hydraulic pumps are there
How many kinds of common hydraulic pumps are there? Expand the definition of all hydraulic pumps: a machine that can change mechanical energy into hydraulic energy by changing the closed working volume to achieve liquid suction and pressure. Types of commonly used hydraulic pumps: 1. According to whether the flow can be adjusted, it can be divided into variable displacement pump and fixed displacement pump. The output flow can be adjusted according to the needs is called variable pump, and the f... Read More
11-01-2020 Industry News -
Requirements of hydraulic oil for plunger pump
In the daily working environment, the plunger pump can not avoid inspection and maintenance, which also has certain quality requirements for hydraulic oil.The following are the quality requirements of the plunger pump for the hydraulic oil Quality requirements of plunger pump for pressure oil1. Proper viscosity and good viscosity temperature performance, so that the hydraulic components can be well lubricated, cooled and sealed under the condition of changing working pressure and temperature.2. ... Read More
03-01-2020 Industry News -
What is the theoretical flow of hydraulic pump
What is the theoretical flow of hydraulic pumpExpand all theoretical flow refers to the volume of oil output by the hydraulic pump in unit time without considering the leakage loss of the hydraulic pump. It is commonly expressed in QT, and the unit is L / min (L / min). The relationship between displacement and theoretical flow is: where n - rotation speed of hydraulic pump (R / min); Q - displacement of hydraulic pump (ml / R) actual flow Q refers to the volume of oil actually output by hydraul... Read More
28-12-2019 Industry News -
What are the common faults of vane pump?
1、 Determination of common faults of vane pump: 1. Grinding pump (burning plate): cause: the oil is too dirty, improper installation, water enters the oil, and there are iron chips in the oil (new machine market occurs). 2. High oil temperature or insufficient parts manufacturing accuracy. 3. High noise of vane pump: especially large a. Air leaks at the oil inlet. (O-ring seal failure, screw too long or flange too thin) b. The filter is blocked and the oil flow is insufficient. c. The viscosity ... Read More
20-12-2019 Industry News -
What is the function of the hydraulic pump
What is the function of the hydraulic pump? The function of hydraulic pump is to convert the mechanical energy of power machine (such as motor and internal combustion engine) into the pressure energy of liquid. The hydraulic pump is a kind of pump, which is driven by engine or motor, sucks oil from the hydraulic oil tank, forms pressure oil to discharge, and sends it to the actuator. There are many factors that affect the service life of the hydraulic pump. In addition to the design and manufact... Read More
14-12-2019 Industry News -
Difference between hydraulic pump and hydraulic motor
1. Different output modes. The hydraulic pump is a conversion device that converts the mechanical energy of the motor into the hydraulic energy, and outputs the flow and pressure, hoping the volume efficiency is high; the hydraulic motor is a conversion device that converts the pressure energy of the liquid into the mechanical energy, hoping the mechanical efficiency is high. Therefore, the hydraulic pump is the energy device, and the hydraulic motor is the actuator. 2. The output shaft turns di... Read More
06-12-2019 Industry News -
Plunger pump cleaning pipeline operation
Plunger pump is an important device of hydraulic system. It relies on the reciprocating movement of the plunger in the cylinder block to change the volume of the sealing working chamber to complete oil absorption and pressure. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency and convenient flow conditioning. As you know, a lot of pipes are used in industrial consumption to transport all kinds of liquid, gas, solid-liquid mixture and other substances ... Read More
29-11-2019 Industry News -
Do you know these techniques? Safety operation technology of high pressure oil pump!
1. It is necessary to ground the power supply and the enclosure. The test can be carried out only after the insulation of the line is checked. 2. Before the high-pressure oil pump works, loosen the regulating valves of each oil circuit, and then start the oil pump. After the empty load works normally, lock the oil return valve, gradually screw in the oil valve rod, increase the load, and pay attention to whether the pointer of the pressure gauge is normal. 3. When the oil pump stops working, the... Read More
23-11-2019 Industry News -
How many kinds of hydraulic pumps do you know?
What do you know about the type of hydraulic pumpThe pressure pump is the power component of the hydraulic system, which is driven by the initiator or motor, sucks the oil from the hydraulic oil tank, forms the pressure oil to expel, and sends it to the implementation component.Type of hydraulic pump1. Gear pump: small in size and approximate in structure, not strict in oil cleanliness and low in price; the pump shaft is severely worn due to unbalanced force and large leakage.2. Vane pump: it ca... Read More
15-11-2019 Industry News -
Advantages and disadvantages of bidirectional compound gear pump
What are the advantages of this equipment? The presentation of this equipment does bring us great convenience, but no matter what product is double-sided, it has its own advantages and disadvantages. It is impossible to say that a product is not picky. What are the advantages and disadvantages of this device? The advantages of the equipment are much more than the defects. The first is the power to weight ratio. This means that a lighter equipment weight can produce a larger output force or torqu... Read More
09-11-2019 Industry News
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