When the hydraulic valve was in the distribution room,it was found that the mating surface became black with scratches and small pits,which is a phenomenon of cavitation.
Cavitation occurs because when the oil pressure is lower than the oil-gas separation pressure,the gas dissolved in the oil will form a ‘cavity’ in the oil.When the pressure reaches a certain value again,These bubbles burst immediately under the action of pressure,resulting in high temperature and high pressure.When they act on the surface of the part,the part will be damaged.Due to the high precision of the hydraulic components of the hydraulic waste paper baler and the small fit gap between the relative moving parts,the mating surface will become black and even small pits will appear after the cavitation occurs,which will cause the Min core to jam and the pressure will be out of adjustment.
During the operation of the waste paper baler,the component that has the ability to "perceive" objects approaching it-displacement sensor,uses the sensitive characteristic of the displacement sensor to approach the object to achieve the purpose of controlling the switch on or off.When an object moves to displacement When the sensor is close to a certain distance,the displacement sensor will "sense" and the switch will act. This distance is usually called the "detection distance",but the detection distance of different proximity switches is also different.The closing of the door is achieved by the proximity switch to close the hydraulic door.
Summary:The application of the travel switch in the waste paper baler is to start and stop the movement of the oil cylinder.The displacement sensor opens and closes the hydraulic door in the waste paper baler,so the travel switch and the displacement sensor are in The waste paper baler has an indispensable role.
The size of the oil tank capacity is related to factors such as the temperature rise of the oil in the working cycle of the hydraulic system,the fluctuation of the liquid level in operation,the oil filling of the pipeline and the actuator during debugging and maintenance,the circulating oil volume,and the life of the hydraulic oil.The capacity of the fuel tank can be calculated according to the empirical formula,but for the sake of reliability,a fuel tank with a slightly larger capacity should be selected within the range of the mechanism's capacity.
The top structure of the fuel tank depends on the components installed on it.For example,if the hydraulic pump is arranged below the liquid level inside the tank,the top of the tank should be or should have a removable cover.All openings such as box lids and pipe outlets must be properly sealed.When installing the hydraulic pump set on the top of the tank,the thickness of the top plate should be four times the thickness of the side plate to avoid vibration.Vibration isolation pads should be installed between the hydraulic pump set and the top of the box.In order to facilitate the layout and maintenance,sometimes the oil return filter installed on the top of the tank is used.
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3.In the process of pressure adjustment,there may be no pressure in the system of the hydraulic baler or the pressure rise cannot reach the adjusted value.At this time,the pump should be stopped and checked carefully,and the adjustment should be continued after troubleshooting.The reason must be rigid adjustment.
4.The size of the pressure adjustment is adjusted according to the design requirements or the pressure value required by the actual use,and should not exceed the specified pressure value.
Many users' aluminum and copper balers have been used for a long time and have not been well maintained.They are not repaired until a problem occurs,which causes a great loss of mechanical performance.Many customers don’t know how to clean and maintain the bearing of the briquetting press roller.First, open the press roll and remove the bearing.Use clean gasoline or kerosene to clean the sludge on the bearing.This is a mechanical maintenance problem.When maintaining the bearing of the press roller of the briquetting machine,install the bearing back to the press roll and evenly apply high temperature resistant grease.When purchasing the metal baler,the engineer of Nick Machinery will explain it,and finally install the bearing cover.The bearings of various briquetting presses have always been cleaned and maintained in this way,that is,they should be opened and cleaned every once in a while after use,which can extend the service life of the scrap aluminum and copper baler.
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5.Move the slide plate back and forth to see if it is smooth.If you need to adjust the right guide rail,adjust the left guide rail.
6.Add a little sewing oil or lighter lubricating oil between the gap between the sliding plate and the left and right guide rails.