Ming Yang teach you to use the cylinder precautions
Anti-rust: After the cylinder is installed on the body, if the piston rod is placed in the extended condition, the exposed part of the piston rod must be coated with grease.
Speed: The general rules of the cylinder, when the speed exceeds 2m/s, its service life will be affected. When 0.3m/s is used as a stroke end, it is recommended that no buffer mechanism be installed in order to protect the mechanism and safety. In addition, when using the oil return volume of the cylinder, special attention should be paid to the circuit design. Operation at a low speed of 0.5m/min or less will affect the operability (especially vibration). Therefore, at low-speed operation, negotiations should be conducted.
Installation: When installing, ensure that the direction of the piston rod's advanced connector should be consistent with the direction of the cylinder head, earring (or intermediate hinge axis), and ensure the straightness of the entire piston rod during advance and retreat to prevent the occurrence of rigid interference, resulting in no Necessary damage.
Exhaust: After starting the hydraulic pump, adjust the system pressure to about 1.0 MPa. Separately control the reversal of the solenoid valve so that oil can be circulated to each branch, and the exhaust valve provided on the pipe can be turned to discharge the gas in the pipe. When the oil continuously overflows, close the exhaust valve. When the hydraulic cylinder exhausts, the exhaust valve on the extended side of the hydraulic pump piston rod can be opened, the solenoid valve is activated, the piston rod moves to discharge air, and when the piston reaches the top dead center, the exhaust valve is closed. Open the other side exhaust valve so that the hydraulic cylinder descends the air in the rodless chamber. Repeat the appeal exhaust method until the air in the hydraulic cylinder is drained. Without the exhaust valve, loosen the hose fitting on the hydraulic cylinder one-third. After two more cylinder movements, the air was discharged and the cylinders were drained. If air is left in the cylinder, an abnormality occurs due to turbidity when it is rapidly pressurized.
Lubrication: When the cylinder is mounted on the main machine, after checking the oil leakage in the piping part and the guide sleeve in the running experiment, the earring and the intermediate hinge bearing part should be buttered.
Safety: The hydraulic cylinder cannot be used as an electrode ground to avoid electric shock to the piston rod.
The longitudinal seam between the color steel plate and the color steel plate and the roof seam between the roof and the roof are mainly made of structural waterproofing, and the material is supplemented by waterproofing. The water in the crevice only does not appear in the case of structural waterproofing, but weather in the wind and rain increases. Between the flanging of the color steel plate and the side wall of the grooving part on the color plate, due to parts processing, construction and installation, etc., it is impossible to completely match. The surface of the color steel plate is very smooth, the friction coefficient is very small, and the rainwater obliquely recoils often. phenomenon. It is necessary for Caigang Machinery to waterproof materials.
The transverse seam between the color steel plate and the color steel plate is lapped by water, and the method of material sealing overlaps. The material is not less than 120 mm in length and has the effect of preventing the corrosion of the sealing steel plate in addition to the waterproof function. The connection between the color steel plate and the purlins is usually through the roof connection. This method is simple and easy to construct. However, holes must be made in the roof. The connection points are exposed to the atmosphere and are often exposed to wind and rain and atmospheric erosion. Therefore, in the construction of the roof, it is recommended to adopt the “concave†concealed connection method. The roofs formed by the color steel plate have different structural nodes that are generated according to the shape of the roof. It is not possible to list them one by one here, and the main results can be obtained by flexibly processing with reference to the above principles.