How to calculate the pressure of the hydraulic oil circuit, how to calculate the oil supply pressure

Summary. f=p*s, this is the most fundamental principle, you see, the motor drives the oil pump to produce 10MPa hydraulic oil, the hydraulic oil enters another container, the size of the force generated is related to the surface area, as shown in the figure, there is a difference between S1 and S2 on both sides, and the force of S1 can be calculated by the formula F=PS, and the force of S1 and S2 is the same, then P2=F1 S2, the greater the difference between S1 and S2, the greater the force of F2, and that's it. Soul painter, please don't mind.

f=p*s, this is the most fundamental principle, you see, the motor drives the oil pump to produce 10MPa hydraulic oil, the hydraulic oil enters another container, the size of the force generated is related to the surface area, as shown in the figure, there is a difference between S1 and S2 on both sides, and the force of S1 can be calculated by the formula F=PS, and the force of S1 and S2 is the same, then P2=F1 S2, the greater the difference between S1 and S2, the greater the force of F2, and that's it. Soul painter, please don't mind.

What does p and s mean?

1. Pressure f=p*s, p is the pressure, s is the force area. 2. Pressure p=f s, f is the pressure, s is the force area. 3. In liquid, p= *g*h, p is the pressure at a certain point in the liquid, is the density of the liquid, g is the gravitational constant n kg, h is the height from a certain point in the liquid to the liquid level.

4. The pressure of the container on the desktop p=f s=(g liquid + g capacity) s, g liquid is the weight of the liquid in the container, g capacity is the weight of the container, and s is the stress area.

p=f a, a is the area, f is the pressure, a=pi 4*d 2, d is the diameter of the cylinder,

The calculation of the working pressure of the hydraulic cylinder involves factors such as the parameters of the hydraulic system, the properties of the fluid, and the design of the cylinder. The following is a basic method for calculating the working pressure of a simple hydraulic cylinder:

1.Understand the hydraulic system parameters: First of all, you need to understand the working parameters of the hydraulic system, including the output flow rate of the hydraulic pump (q, in liters minutes or cubic meters), the working pressure of the hydraulic system (p, in bar or pascal), the effective working area of the hydraulic cylinder (a, in square meters), etc.

2.*Use Basic Hydraulic Formula:**The working pressure of a hydraulic cylinder can be calculated using the following basic hydraulic formula:

p = frac$$

where p is the working pressure, f is the output force or required force of the hydraulic cylinder, and a is the effective working area of the hydraulic cylinder.

3.Calculate the required force: If you need to calculate the force required for a hydraulic cylinder, it can be determined based on the specific application and operating conditions. For example, if you know the required thrust (force), then you can substitute it directly into the above formula.

4.*Calculation of hydraulic cylinder area: **The effective working area of the hydraulic cylinder a can be calculated according to the design and size of the hydraulic cylinder. For hydraulic cylinders with circular cross-sections, the area can be calculated using the following formula:

a = frac$$

Where, d is the effective diameter of the hydraulic cylinder.

Note that the above formula assumes that the liquid is incompressible and does not take into account factors such as energy loss, friction, etc. in the hydraulic system. In practical applications, it is also necessary to consider the safety factors of the system to ensure that the working pressure is within the rated parameters of the system and the cylinder.

In conclusion, the calculation of the working pressure of a hydraulic cylinder involves several factors of the hydraulic system, including the output force, the flow rate of the hydraulic pump, the area of the hydraulic cylinder, etc. Correct calculation of the working pressure is important to ensure the proper operation and safety of the hydraulic system. If complex hydraulic system design is involved, it is advisable to seek the help of a professional hydraulic engineer.

The pressure of the cylinder is determined by the load, and the pressure of the physical force is equal to the force divided by the area of action (i.e. p=f s).

If you want to calculate the output force of the cylinder, you can calculate it according to the following formula:

Let the radius of the piston (i.e., the cylinder barrel) be r (unit mm) and the radius of the piston rod be r (unit mm).

The pressure level p (in MPa) during operation

Then the thrust of the cylinder fpush= (unit n).

The pulling force of the cylinder f-pull= (unit n).

The pressure of the hydraulic system is determined as follows:

According to the design requirements, the Zen match is determined from the pressure gauge. For example, if the hydraulic system is used to push the piston to lift heavy objects, the input pressure value should be calculated according to the piston area.

The pressure of the hydraulic system is determined by the external load within the allowable working pressure range and the accompanying range, and the greater the load, the greater the pressure.

When the pressure is high enough to be equal to the set pressure of the relief valve, the system pressure will no longer increase and will remain constant at the set pressure value of the relief valve. The setting pressure of the relief valve also depends to a certain extent on the maximum pressure value that the hydraulic pump can output, because the setting pressure of the relief valve must be less than the maximum output pressure of the hydraulic pump in order to play a role in safety protection.

The pressure of the hydraulic cylinder p=f a, the thrust is known, the appropriate pressure is selected, and the area is calculated. Or the structural design selects the appropriate cylinder bore and calculates the pressure.

The pump pressure is equal to the pressure + loss of the pressure cylinder, determine the system composition, estimate the loss of each component, calculate the pressure required by the system, and leave some margin to select the pump.

Hydraulic cylinder area (cm2) a = d2 4 d: effective piston diameter of hydraulic cylinder (cm) hydraulic cylinder speed (m min) v = q a q: flow rate (l min) flow rate required by hydraulic cylinder (l min) q=v a 10=a s 10t v:

Speed (m min) s: cylinder stroke (m) t: time (min).

The tonnage divided by the area inside the cylinder is equal to MPA (pressure).

Projects.

Public. Symbolic Meaning.

Hydraulic cylinder area (cm2).

a =πd2/4

d: Effective piston diameter of hydraulic cylinder (cm).

Cylinder speed (m min).

v = q / a

Q: Flow rate (l min).

The flow rate required for the hydraulic cylinder (l min).

q=v×a/10=a×s/10t

v: speed (m min).

s: Hydraulic cylinder stroke (m).

t: time (min).

Hydraulic cylinder output (kgf).

f = p × a

f = (p × a)－(p×a)

When there is back pressure).

P: Pressure (kgf cm2).

Pump or motor flow rate (l min).

q = q × n / 1000

Q: Geometric displacement of the pump or motor (cc rev).

n: rotational speed (rpm).

Pump or motor speed (rpm).

n = q / q ×1000

Q: Flow rate (l min).

Pump or motor torque (

t = q × p / 20π

Hydraulic power required (kw).

p = q × p / 612

Flow velocity in the tube (m s).

v = q × / d2

d: Tube inner diameter (mm).

Pressure drop in the tube (kgf cm2).

p=u: viscosity of the oil (cst).

s: the specific gravity of the oil.

l: Length of the tube (m).

Q: Flow rate (l min).

d: Inner diameter of the tube (cm).

The pressure of the cylinder is determined by the load, and the pressure of the physical force is equal to the force divided by the area of action (i.e. p=f s).

If you want to calculate the output force of the cylinder, you can calculate it according to the following formula:

Let the radius of the piston (i.e. the cylinder barrel) be r

unit mm) The radius of the piston rod is r

unit mm) when working, the pressure level p

unit MPA).

then the thrust of the cylinder.

f push = (unit n).

The pulling force of the cylinder.

F-pull = (unit n).