Release time：2023-11-26 09:49:38 Hits： Current position: Home > News
This article mainly introduces:
India hydraulic cylinder,road paving machine hydraulic cylinder manufacturer,road paving machine hydraulic cylinder
(India road paving machine hydraulic cylinder,produced by Hengyu Hydraulic Co., Ltd）
road paving machine hydraulic cylinder are widely used in India，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 India.
When installing the road paving machine hydraulic cylinder, the axial ends of the road paving machine hydraulic cylinder cannot be fixed. Due to the effect of liquid pressure and thermal expansion in the road paving machine hydraulic cylinder, there is axial expansion. If the two ends of the road paving machine hydraulic cylinder are fixed, all parts of the road paving machine hydraulic cylinder will be deformed. When disassembling the road paving machine hydraulic cylinder, it is strictly forbidden to hammer the road paving machine hydraulic cylinder and the piston surface, such as the road paving machine hydraulic cylinder hole and the piston surface is damaged, do not allow sandpaper grinding, to use a fine oil stone carefully grinding. The clearance between the guide sleeve and the piston rod should meet the requirements.
road paving machine hydraulic cylinder spool stuck or valve hole blocked How to solve: When the flow valve or direction valve spool stuck or valve hole blocked, the road paving machine hydraulic cylinder prone to misoperation or action failure. At this time, the contamination of the oil should be checked; Check whether dirt or colloidal deposits are stuck in the spool or blocking the valve hole; Check the wear of the valve body, clean and replace the system filter, clean the fuel tank, and replace the hydraulic medium.
road paving machine hydraulic cylinder and hydraulic station selection: Select the type and structure of the road paving machine hydraulic cylinder according to the operation requirements of the main engine. According to the external load force borne by the road paving machine hydraulic cylinder, such as gravity, friction force of the external mechanism, inertia force and working load, determine the load change law of the road paving machine hydraulic cylinder in each stage of the stroke and the power value that must be provided. Determine the diameter of the piston and piston rod according to the working load of the road paving machine hydraulic cylinder and the selected oil working pressure. the flow rate of the hydraulic pump is determined according to the movement speed of the road paving machine hydraulic cylinder, the diameter of the piston and the piston rod.
When the road paving machine hydraulic cylinder is installed, the piston and the road paving machine hydraulic cylinder head and other parts have large mass, large size and large inertia, even if there is a lifting equipment auxiliary installation, because the specified clearance is small, no matter how hard it will be put into, therefore, the end of the piston or the road paving machine hydraulic cylinder head boss is easy to cause scars when it hits the inner surface of the road paving machine hydraulic cylinder wall. The solution to this problem: for a large number of small products, the use of autocratic assembly oriented tools during installation; For heavy, thick and large large and medium-sized road paving machine hydraulic cylinders, only careful and careful operation can be avoided.
100 tons press, the cylinder diameter is 250, how much pressure?
100 tons hydraulic press, if it is a single acting hydraulic cylinder, the required oil pressure is the nominal force divided by the cross-sectional area of the cylinder piston. One hundred tons of its pressure is 1000 kN (1000000N), the diameter of the cylinder is 250 mm, its area is the circular rate multiplied by the square of the radius, is 49062.5 square mm, and then the pressure divided by the area of the oil pressure is 20.38MPa. Therefore, a hydraulic pressure of 20.38 mpa is required for a 250 diameter cylinder to obtain 100 tons of pressure.
What kind of seal ring we should choose for 120Mpa hydraulic cylinder?
The sealing rings used in mining machinery are high pressure, which can reach 150MPa. It is generally composed of three parts, the guide ring, the sealing body and the elastomer. It's not a special structure. It's more mature. Usually said mountain circle, bud circle.
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