This article mainly introduces:

Austria hydraulic cylinder,road paving machine hydraulic cylinder manufacturer,road paving machine hydraulic cylinder

(Austria road paving machine hydraulic cylinder,produced by Hengyu Hydraulic Cylinder Factory）

road paving machine hydraulic cylinder are widely used in Austria，because of excellent fatigue and impact resistance，no need for deceleration device，long service life.So our company has designed road paving machine hydraulic cylinder for customers from Austria.

Introduction to road paving machine hydraulic cylinder:

Classification of road paving machine hydraulic cylinder: according to the mode of movement it can be divided into linear reciprocating movement type and rotary swing type; According to the effect of liquid pressure, it can be divided into single acting type and double acting type. According to the structure, it can be divided into piston type, plunger type, multistage telescopic sleeve type, pinion and rack type, etc. According to the installation form can be divided into rod, earring, foot, hinge shaft and so on; According to the pressure grade can be divided into 16Mpa, 25Mpa, 31.5Mpa and so on.

road paving machine hydraulic cylinder seal leakage causes and countermeasures: a. Loose tie rod nut will cause leakage, tighten the tie rod nut according to the torque requirements of tie rod nut, test no leakage can continue to use. b. Pressure exceeding the limit will also cause leakage. Replace the road paving machine hydraulic cylinder seal and re-tighten the tie rod nut to reduce the pressure to the nominal pressure range of the road paving machine hydraulic cylinder. c. The road paving machine hydraulic cylinder seal is extruded, if the O-ring is obviously extruded at the road paving machine hydraulic cylinder seal, replace the road paving machine hydraulic cylinder seal.

road paving machine hydraulic cylinder is the most important part of construction machinery, the traditional processing method is: broaching road paving machine hydraulic cylinder block - fine boring road paving machine hydraulic cylinder block - grinding road paving machine hydraulic cylinder block. The rolling method is: broaching road paving machine hydraulic cylinder block - fine boring road paving machine hydraulic cylinder block - rolling road paving machine hydraulic cylinder block, the process is 3 parts, but the time is compared: grinding 1 meter of the road paving machine hydraulic cylinder block is about 1-2 days, rolling 1 meter of the road paving machine hydraulic cylinder block is about 10-30 minutes. Input comparison: grinding machine or quilting machine (tens of thousands - millions), rolling knife (ten thousand - tens of thousands). After rolling, the surface roughness of the hole decreases from RA3.2-6.3 μm before rolling to Ra0.4 ~ 0.8μm, the surface hardness of the hole increases by about 30%, and the fatigue strength of the inner surface of the road paving machine hydraulic cylinder increases by 25%. If the road paving machine hydraulic cylinder life is only considered, it is increased by 2 to 3 times, and the boring and rolling process is 3 times more efficient than the grinding process In particular, if you want to make high-quality road paving machine hydraulic cylinders, you must take the rolling production process. After the road paving machine hydraulic cylinder is rolled, there is no sharp tiny edge on the surface, and long-term motion friction will not damage the seal ring or seal, which is particularly important in the hydraulic industry.

The difference between the plunger road paving machine hydraulic cylinder and the piston road paving machine hydraulic cylinder is that the piston in the road paving machine hydraulic cylinder is replaced by a shaft plunger, which is used in hydraulic transmission requiring a long mechanical stroke, and can only input pressure oil from one direction, pressurize in a single direction, and form a thrust to push the plunger to move. The return trip of the plunger depends on the plunger itself to fall, and some rely on the spring to push back to the original position. Usually used plunger type road paving machine hydraulic cylinder, its inner hole does not need mechanical finishing, as long as the plunger round grinding can be assembled.

Answers to some questions about road paving machine hydraulic cylinder:

Can one hydraulic pump with two cylinders work?
A hydraulic pump with two cylinders will work. Commonly used hydraulic pump types: 1, according to whether the flow can be adjusted can be divided into: variable pump and quantitative pump. The output flow can be adjusted according to the needs of the variable pump, the flow can not be adjusted called quantitative pump. 2, according to the pump structure commonly used in the hydraulic system is divided into: gear pump, vane pump and plunger pump 3 kinds. Gear pump: small volume, simple structure, the cleanliness of the oil requirements are not strict, the price is cheaper; However, the pump shaft is subjected to unbalanced force, serious wear and leakage. Vane pump: divided into double acting vane pump and single acting vane pump. The pump has uniform flow, smooth operation, low noise, higher pressure and volumetric efficiency than gear pump, and more complex structure than gear pump.

How to limit cylinder push rod rotation?
In general, the push-rod rotation can be limited after the push-rod is connected to the pushed mechanism. For example, the push rod is hinged with the push mechanism, or the push mechanism itself is guided, which can limit the rotation of the push rod.