Year1
- 型号：
- 2CY-7.5/2.5
Purpose of gear pump:
Suitable for transporting lubricating oil or other liquids with properties similar to lubricating oil that do not contain solid particles and fibers, are non-corrosive, have a temperature not higher than ℃, and a viscosity of -~./ For use in hydraulic turning systems.
Application scope of gear pump:
In all industrial fields, it can be used as lubricating oil pump, in petroleum system transmission, it can be used as transmission, booster pump, and in fuel system, it can be used for transportation, pressurization and injection. A fuel pump that can be used to provide hydraulic power in a hydraulic transmission system
Structural features of gear pumps:
This series of gear pumps mainly include gears, shafts, pump bodies, pump covers, bearing sleeves, and shaft ends Seal and other components. Installed together with the shaft and run in a replaceable bushing. The lubrication of all parts in the gear pump is automatically achieved by using the transport medium when the pump is working.
Adjust the gear oil pump transmission device
When the gear oil pump transmission device is reassembled after disassembly and inspection, first make the teeth of the movable claw coupling and the fixed claw coupling in the full tooth meshing position, and then When the two fixing bolts of the positioning plate are loosened but not unscrewed, insert the positioning pin on the joint lever assembly into the hole on the rear side of the gear pump on the positioning plate. If the long slotted hole on the positioning plate has been turned to the limit and the positioning pin still cannot be inserted into the hole, it is necessary to reinstall the joint lever assembly and change its spline matching position. After adjustment, tighten the two positioning plate fixing bolts and Engage the lever assembly retaining bolt. Finally, the engagement lever assembly should be pulled repeatedly several times, and the movable claw coupling should slide freely. Observed from the inspection hole, the teeth of the two couplings should be fully engaged in the engagement position, and should be disengaged in the separation position.
Wear failure of series gear pumps
Wear of internal parts of gear pump
Wear of internal parts of oil pump will cause internal leakage. Among them, the leakage area between the floating sleeve and the gear end face is large, which is the main part causing internal leakage. This part of the leakage accounts for about ~ of the total internal leakage. The volumetric efficiency of a gear pump with wear and internal leakage decreases, and the output power of the oil pump is much lower than the input power. All its losses are converted into heat energy, thus causing the oil pump to overheat. If the joint plane is pressed tightly, the floating bushing will move a little during operation and cause wear. As a result, the agricultural tool will be slowly lifted or cannot be lifted. Such floating bushing must be replaced or repaired.
, Gear oil pump
The wear of the casing
It is mainly the wear of the floating sleeve hole (the normal gap between the gear shaft and the sleeve is .~., and the maximum shall not exceed .). The gear works under the influence of pressure oil. The tip of the gear is close to the oil pump housing and wears the low-pressure chamber part of the pump body. Another kind of wear is the circumferential wear of the working surface in the casing. This kind of wear is mainly caused by the impurity of the added oil, so oil without impurities must be added.
Series gear pump performance parameter table
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b Speed
b Discharge pressure
b Necessary steam
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b Efficiency
b Electric motor
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b power
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