This article mainly introduces:

Austria hydraulic cylinder,steering power cylinder manufacturer,steering power cylinder

(Austria steering power cylinder,produced by Hengyu Group）

steering power cylinder are widely used in Austria，because of simple structure and reliable operation，excellent temperature resistance，no transmission clearance.So our company has designed steering power cylinder for customers from Austria.

Introduction to steering power cylinder:

When the steering power cylinder is repaired, its inner and outer diameter and roundness should be accurately measured. If the inner hole of the steering power cylinder is badly worn, it can be repaired by grinding the mandrel or honing on the boring machine. If the piston is worn, it can be repaired by electroplating, and serious wear should be replaced.

The piston rod of the steering power cylinder has two kinds of solid rod and hollow rod, and one end of the hollow piston rod needs to be set aside for welding and heat treatment. The solid piston rod material is 35, 45 steel, and the hollow piston rod material is 35, 45 seamless steel pipe. After rough machining, the piston rod is conditioned to 229~285HB in India, and if necessary, the hardness is 45~55HRC after high-frequency quenching.

If it is found that the steering power cylinder lubrication is poor or the steering power cylinder bore processing is abnormal, it is necessary to feedback the situation to the manufacturer, because the piston and the steering power cylinder, the guide rail and the piston rod have relative movement, if the lubrication is poor or the steering power cylinder bore is abnormal, it will aggravate the wear and reduce the straightness of the steering power cylinder center line. In this way, when the piston works in the steering power cylinder, the friction resistance will be large and small, resulting in slip or crawling. The solution is to repair and grind the steering power cylinder first, and then prepare the piston according to the matching requirements, repair and grind the piston rod, and configure the guide sleeve.

The viscosity of the working oil used in the steering power cylinder is 29~74mm2/S, and ISO VG46 anti-wear hydraulic oil is recommended. Working oil temperature within the range of -20~80. C. When the ambient temperature and service temperature are low, the oil with lower viscosity can be selected.

Answers to some questions about steering power cylinder:

What is the safety factor of 25MPa cylinder wall thickness?
Safety factor n can take 3 cylinder material allowable stress [s]=sb/n δ/D=0.08 ~ 0.3 cylinder wall thickness δ=PMAX*D/ (2.3[s]-3PMAX) δ/D≤0.08 cylinder wall thickness δ=PMAX*D/2[s] P < 16MPa, Pmax=1.5Pn; P > 16MPa, Pmax=1.25Pn cold-drawn tube or honing tube is better!

What is the meaning of dead volume in hydraulic cylinder?
Closed volume, also known as dead zone volume Positive displacement pump is dependent on the change of sealing working volume to achieve suction and pressure oil, in order not to make the suction and pressure oil cavity interworking, there is an oil sealing area between the suction and pressure oil cavity, when the sealing working volume passes through the oil sealing area, neither pressure oil cavity nor oil suction cavity communication, forming a closed sealing volume. The unloading groove is opened, and the grooving principle is that the sealing volume decreases and the oil pressure chamber is communicated, and the sealing volume increases and the oil suction chamber is communicated.