Processing method for hydraulic oil tank cylinder barrel of lifter

Abstract

The invention discloses a processing method for a hydraulic oil tank cylinder barrel of a lifer. The method comprises the following steps: selecting the material of No.35 or No.45 steel to process the cylinder barrel, adopting No.35 steel with better welding performance when the cylinder barrel, a cylinder cover, a hanging connector and other components are welded together, and modulating after rough processing; adopting a rubber seal ring structure for the cylinder barrel and a piston, adopting H9 / f8 for the matching of the cylinder barrel and the piston, adopting H7 / g6 for the matching if a piston ring is used for sealing, and grinding the inner diameter of the cylinder barrel; and applying a metal chromium coating with the thickness of 30 to 35mMu to the inner surface of the cylinder barrel, and polishing the inner surface of the cylinder barrel after chromeplating; and setting the errors of roundness and cylindricity of the inner diameter of the cylinder barrel to be not greater than a half of the diameter tolerance. The invention has the benefits that the processing method facilitates the improvement on the working effect of an oil tank, is good in safety, can be used in various different occasions, and facilitates the improvement on the operation controllability and the energy-saving effect.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to a method for processing a hydraulic oil tank cylinder of an elevator. Background technique [0002] The hydraulic system has the advantages of large power, good adjustability of working pressure and flow, heat can be brought back to the oil tank, etc. The elevator is a kind of cargo lifting mechanism with good lifting performance and wide application range. It can be used for cargo transportation between equipment with height difference in the production line, material on-line and off-line, lifting of components during common assembly, and loading of large hangars. , blanking, warehousing and loading and unloading, and other places, it is used in conjunction with forklifts and other vehicles and fast loading and unloading of goods. It uses a hydraulic system device that can generate more power than other devices. Under the same power, the hydraulic device is small in size, lig...

AI Technical Summary

Problems solved by technology

Of course, there are still many disadvantages in the hydraulic technology used for elevators. For example, the hydraulic pressure has more energy loss during the transmission process, and the hydraulic transmission is easy to leak. Motion stability and correctness; sensitive to oil temperature changes, high manufacturing precision requirements for hydraulic components, high cost, and difficult to find the cause of failure. Therefore, in practical applications, it is necessary to take effective measures to reduce disadvantages in all aspects one by one. Influenced by factors, especially the volume of the oil tank should be able to ensure that when the system has a large amount of oil supply but no oil return, the minimum liquid level should be above the inlet filter to ensure that no air will be sucked in, including the cylinder barrel and cylinder head the design of