Points to consider when selecting hydraulic oil for a hydraulic press:
Due to the different design structures of hydraulic suspension systems in various machines, the methods and specifications for oil usage also vary.
Key points to maintain cleanliness of hydraulic oil in a cutting machine:
Maintaining the cleanliness of hydraulic oil is crucial for ensuring the normal operation of the hydraulic suspension system and reducing component wear. The following points should be noted:
1. The oil can and funnel used must be clean. When refilling, do not add dirty oil to the hydraulic oil tank or transmission box.
2. When changing hydraulic oil, attention should be paid to the operating procedure. If hydraulic oil needs to be changed, first drain the oil while the hydraulic system is operating and the oil temperature is high, and impurities have not yet settled. Move the handle to the "down" position to drain the oil from the cylinder. Then clean the hydraulic system with a cleaning solution before adding clean hydraulic oil.
Points to consider during repair or maintenance of the hydraulic suspension system:
During disassembly and assembly work, the following points should be considered to prevent damage to components and ensure proper assembly:
1. Before disassembly, understand the structure of the hydraulic suspension system, especially the connection between component assemblies.
Working principle of single-acting vane pump:
The pump consists of components such as a rotor, stator, vanes, distribution plate, and end cover. The inner surface of the stator has a cylindrical hole. There is an eccentricity between the rotor and stator. The vanes can slide flexibly in the slots of the rotor. When the rotor rotates, under the centrifugal force and the pressure oil entering the root of the vanes, the top of the vanes tightly adheres to the inner surface of the stator. This forms sealed working chambers between adjacent vanes, the distribution plate, stator, and rotor.
Synchronization schemes for two hydraulic cylinders in a cutting machine:
There are various synchronization schemes, such as mechanical rigid synchronization, series-connected hydraulic cylinder synchronization, double-displacement hydraulic motor synchronization, equal oil supply synchronization with dual hydraulic pumps, flow divider synchronization, and synchronization using hydraulic proportional flow control valves with mechanical feedback control. This article introduces the synchronization scheme for a bending machine using a hydraulic synchronization valve with mechanical feedback control. This type of hydraulic synchronization valve with mechanical feedback control can precisely control the synchronous movement of two hydraulic cylinders in both directions.
Flow control valve for a cutting machine, also known as a 400X flow control valve, is a multifunctional valve that controls flow using high-precision pilot control. It is suitable for pipelines where flow and pressure control are required, maintaining a constant predetermined flow and limiting excessive flow to a predetermined value while appropriately reducing the upstream high pressure, even if the pressure upstream of the main valve changes, it will not affect the downstream flow.
Selection of flow control valve for a cutting machine:
Selection can be based on the pipe diameter. It can also be based on the maximum flow and the flow range of the valve.
Working principle of flow control valve for a cutting machine:
The digital flow control valve for a cutting machine consists of an automatic valve core, a manual valve core, and a display unit. The display unit consists of the flow valve core, sensor transmitter, and electronic calculator display.
The structure of the oil cylinder in a cutting machine is simple, and its working principle is not complex. It converts hydraulic energy into mechanical energy, enabling linear reciprocating or oscillating motion. Its advantages are that it eliminates the need for a deceleration device during movement and has no transmission gaps, resulting in smoother motion. Therefore, it is widely used in various hydraulic systems.
