This article mainly introduces:

Switzerland hydraulic cylinder,stroke adjustable cylinder manufacturer,stroke adjustable cylinder

(Switzerland stroke adjustable cylinder,produced by Hengyu Group）

stroke adjustable cylinder are widely used in Switzerland，because of excellent temperature resistance，no transmission clearance，powerful torque.So our company has designed stroke adjustable cylinder for customers from Switzerland.

Introduction to stroke adjustable cylinder:

Analysis of commonly used seals: The wear ring and slip ring commonly used on the stroke adjustable cylinder are generally made of polytetrafluoroethylene + graphite, because pure polytetrafluoroethylene is easy to produce plastic creep, which is only suitable for low pressure and low wear resistance conditions. If the sealing ring used is a composite material formed after adding graphite filler, the performance can be effectively improved, the ability to resist plastic creep is increased by 2 to 3 times, the initial deformation caused by the load is reduced by 30 to 60% : the rigidity is increased by 2 to 3 times: the dimensional stability under heat is increased by 2 times, and the hardness is increased by l0 to 15%.

stroke adjustable cylinder body inspection: The inner surface of the stroke adjustable cylinder and the piston seal are the main factors causing the leakage in the stroke adjustable cylinder, if the stroke adjustable cylinder has a longitudinal tensile mark, even if the new piston seal is replaced, it can not effectively eliminate the fault, the inner surface of the stroke adjustable cylinder mainly checks whether the dimensional tolerance and shape and position tolerance meet the technical requirements, there is no longitudinal tensile mark, and measures the depth of the longitudinal tensile mark, in order to take the corresponding solution.

Disassembly stroke adjustable cylinder: When disassembly stroke adjustable cylinder, strictly prevent damage to the screw thread at the top of the piston rod, the screw thread of the stroke adjustable cylinder head and the surface of the piston rod. It should also be noted that the piston cannot be played out from the stroke adjustable cylinder.

stroke adjustable cylinder is the most important part of construction machinery, the traditional processing method is: broaching stroke adjustable cylinder block - fine boring stroke adjustable cylinder block - grinding stroke adjustable cylinder block. The rolling method is: broaching stroke adjustable cylinder block - fine boring stroke adjustable cylinder block - rolling stroke adjustable cylinder block, the process is 3 parts, but the time is compared: grinding 1 meter of the stroke adjustable cylinder block is about 1-2 days, rolling 1 meter of the stroke adjustable 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 stroke adjustable cylinder increases by 25%. If the stroke adjustable 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 stroke adjustable cylinders, you must take the rolling production process. After the stroke adjustable 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.

Answers to some questions about stroke adjustable cylinder:

How does the clamping cylinder work?
Hydraulic transmission principle: oil as the working medium, through the change of the sealing volume to transfer movement, through the internal pressure of the oil to transfer power. 1. The power part - converts the mechanical energy of the prime mover into the pressure energy of the oil (hydraulic energy). For example: hydraulic pump. 2, The executive part - the hydraulic pump input oil pressure energy into the mechanical energy to drive the working mechanism. For example: hydraulic cylinder, hydraulic motor. 3, The control part - used to control and adjust the oil pressure, flow and flow direction. For example: pressure control valve, flow control valve and direction control valve. 4, The auxiliary part - the first three parts are connected together to form a system, which plays the role of oil storage, filtration, measurement and sealing.

What are the four cylinders of the truck crane?
The four cylinders of the truck crane generally refer to the telescopic cylinder of the boom (to adjust the length of the boom), the variable amplitude cylinder of the boom (to adjust the elevation Angle of the boom), the horizontal telescopic cylinder of the support leg and the vertical cylinder of the support leg.