Q:The main difference between hydraulic circuit and pneumatic circuit

The hydraulic movement position is accurate, the barometric pressure because the compression movement is inaccurate, the hydraulic pressure general movement is slower, the barometric pressure is quicker. Hydraulic power source is generally hydraulic pump, pressure source is generally compressor. Hydraulic force is greater, the pressure is relatively small.

Q:Compared with hydraulic cylinder and cylinder, what are the advantages of electric cylinder?

Electric cylinder can be compact, light and fast, but the electric cylinder also has disadvantages. He has no hydraulic tonnage

Q:This is the model of a hydraulic buffer tank used on an oil rig. Who can explain the meaning of this model to me, especially the meaning of 550*905, and also provide the best drawings

HSG--- double acting single piston hydraulic cylinder, piston type K--- card key, 01--- for the Y type sealing ring, 160/110E--- bore diameter is 110, 160, a pressure of 16MPa, 5221---5 said the cylinder head or cylinder middle flange connection, 2 piston rod end thread, 2 (second 2) the cylinder head end buffer 1 oil port internal thread; 550 stroke, 905 for the minimum installation distance.

Q:Application of hydraulic and pneumatic in industry

Hydraulic pay attention to heavy planting and stability, pneumatic attention to dexterity and speed and environment, pneumatic can be used in the pharmaceutical, food industry, each has advantages

Q:Master, I want to make a set of hydraulic equipment for hydraulic piston and cylinder head with us how to adjust the tolerances. (H refers to the tolerance zone of the hole, f refers to the tolerance zone of the shaft, right? What does H7F8 mean?) I do not understand these written knowledge, it is best to say that the size of the piston head and cylinder bore how to fit, and can take specific figures for example, the best, the more detailed the better. To install the piston ring high speed heating will do, how to solve it, large caliber and long trip for us.

2, the piston head and cylinder matching, in operation is to rely on oil sealing ring to seal the cylinder cavity.

Q:Multi axis drilling hydraulic system design of a horizontal cylinder in the machining production line (conditions: positioning, clamping hydraulic control, machine tool positioning clamping action sequence: - - - - - feeding slide fast forward rewind - stop - release - pull pin fixture, machine work axial cutting force 25000N, acceleration deceleration inertia force 500N 1500N, static friction resistance, friction resistance 850N, fast forward, rewind speed is 100mm/S and the feeding speed of 833mm/min, fast travel 0.1M of 0.04m. Worktable adopts flat guide rail)Tasks and requirements:Determine component specifications and complete hydraulic system loop diagram 1;2. Design the assembly drawing of the hydraulic cylinder 1;3, according to the prescribed format to complete the design, calculation manual 1.

The design has to be replaced by moneyChange the design with a reward, dream!In addition, the use of hydraulic pressure to feed the power, can not guarantee a stable speed bar, careful processing tool was cracked

Q:What's the difference between an electric hydraulic and a pneumatic jack?

The two are the same: the executing agencies are hydraulic piston rod. The difference between the two is: electric hydraulic motor drives the oil pump, so that oil into the hydraulic cylinder, push the piston rod to work. Pneumatic hydraulic jack is two cylinder: the smaller cross-sectional area of the cylinder and the area of the cylinder when the cylinder gas of large capacity into small capacity, will produce several times, even ten times of pressure on the small cylinder, the output of small cylinder piston rod increases greatly, this method is called "liquid booster". Also called the cylinder pressure cylinder.Here is a very simple introduction, the actual structure is more complex, the principle will not be repeated, please refer to the relevant information.

Q:machinery and components, such as cylinders, cylinders and so on, whether the pressure vessel ah? Does the relevant manufacturer need relevant qualifications? FiveThere are two entirely different answers to the question. Which one is right? Hope that professionals pointing. Thank you

Pressure is the airtight equipment that contains gas or liquid and carries certain pressureLiterally, the cylinders, cylinders, and hydraulic components are not airtight, with A, P and so on.. So it doesn't belong to the pressure vessel.

Q:After running in, the upper cylinder head, the hydraulic jacking rod and the rocker arm are also arranged in the original position, and the cylinder head is not provided with a valve body without gaps

I. valve clearance: when the valve is completely closed, the gap between the end of the valve stem and the component of the valve train is called the valve clearance. Two, the valve clearance is necessary: when the engine works, the valve will be due to temperature expansion, if the valve and its transmission parts, in the cold when no gap or clearance is too small, in the hot state, and the transmission of the thermal expansion valve will cause the valve is not tightly closed, causing the engine leakage in the power stroke in compression and the power down, don't even start easily when serious. In order to eliminate this phenomenon, the valve clearance is usually used in the cold assembly of the engine to compensate for the expansion after the valve is heated. Some engines use hydraulic tappet, the length of tappet can change automatically, and the thermal expansion of the valve is compensated at any time, so there is no need to reserve the valve clearance. Three, the valve clearance is too large and too small damage, the size of the valve clearance by the engine manufacturer, according to the test to determine. Generally in cold state, the clearance of intake valve is 0.25mm~0.35mm, and the clearance of exhaust valve is 0.30mm~0.35mm. 1, too small: if the valve clearance is too small, the engine in hot state may be due to valve closed lax and leak, leading to power down, or even valve burned.

Q:Apart from the way they are installed, are their sensors universal? That is, can the induction switches used on the A model cylinder be used on the B model cylinders?!Some cylinders use large ones, but others are very small. Are they interchangeable? That is, if the big induction switch is broken, can it be replaced with a small one?

Are you talking about the magnetic induction switch, only the cylinder with magnetic band can be used?