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Working principle of gear pump brake valve
2020-12-17 562
(1) when the valve control lever is neutral, the oil pressure at port P is equal to that at port R. When the oil pressure of port P increases, the pressure area of plunger, the pressure of port P, the elasticity of tension spring and the pressure of chamber G are balanced, so the valve starts to operate. When the piston moves, the pressure of chamber g changes, so the safety pressure is affected by the tension spring and piston. Because the piston moves, the safety pressure increases from P1 to
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Methods of waterproof scale for gear fittings of excavator
2020-12-17 558
We should all have seen excavators, so do you know how to prevent the scale of excavator accessories? Today, we specially invited modern excavator accessories manufacturers to tell us the methods of modern excavator accessories anti scaling. Let's follow Xiaobian to have a look! (1) magnetize the water quality. Some small magnets are placed in the engine structure system. The magnetic field generated by these magnets magnetizes the cooling water. The magnetized water can reduce the scale composi
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How to maintain gear parts of Jiangmen excavator?
2020-12-17 489
The rotary table of excavator accessories plays an important role in the daily work, because the bad working environment or improper operation of the excavator will cause a series of failures of the rotary table, such as wear aggravation, abnormal noise, oil seal replacement and so on. When encountering these problems, first of all, open the cover plate around the boom mounting base, and investigate the amount of grease in the big gear ring and the wear condition of the gear ring. Because of the
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How to change gear oil for rotary motor reducer?
2020-12-17 525
Oil change time: after the oil change cycle is reached, the new gear oil must be replaced. After the excavator stops working for half an hour, the gear oil is at the bottom of the reducer, and the oil temperature is not too high or too low. The old oil can be drained as much as possible. After the old oil is drained, tighten the oil drain screw, and then add new gear oil from the gear oil filling port. Pay attention to the adjustment at this moment Check the travel scale to avoid too little or t
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Jiangmen excavator gear tells you how to install bearings?
2020-12-17 492
The equipment and disassembly method of excavator gear bearing shall be determined according to the structure, size and cooperation with bearing parts of excavator. How to install the gear bearing of excavator? (1) the shift equipment is not adjusted properly. If the mechanical manual shifting method is selected for the transmission of this type of excavator, if the shift lever, vertical axis, horizontal axis and vertical fixing screws are loose, the transmission can also jump;. The external loa
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What are the measures to prevent gear failure?
2020-12-17 458
The measures to prevent gear failure are to select the appropriate gear data. The gear is a part of power transmission and works under alternating load, so the gear data should have certain touch fatigue strength and zigzag fatigue strength. There is a large sliding friction on the tooth surface during gear transmission, which requires the gear data to have enough hardness and wear resistance. In addition, the selected material should have a certain impact toughness, and meet the requirements of
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Working principle of gear pump
2020-12-17 501
The inlet oil is filled in the rotating gear groove and extruded along the inner surface of the casing to the outside of the gear. The oil between the output side and the suction side can only be discharged when the two gears are meshed. The output pressure is set at 5.2kpa, and the compressed oil is delivered to the main pump and pilot circuit. 1. Structure and principle of rotary motor assembly (1) structure of rotary motor assembly the rotary motor assembly includes valve cover part, rotary m