The reason why the oil pressure of the hydraulic pump is high

The reason why the oil pressure of the hydraulic pump is high

Hydraulic machine gear pump noise, although it will not occur oil oil, but accompanied by the temperature rise caused by the phenomenon of this phenomenon or the intake of air, but into the earthworm air less, the intake of the site is also different. There are also mechanical reasons.
   ① hydraulic machine with the above intake slightly better.
   ② in the high pressure gear pump inlet position and intake reasons. The gear pump shown as an example, easy to intake of the location of the figure in the c, h, etc., mostly screws are not tightened, the two joint surface processing, flatness and surface roughness does not meet the requirements, Sealed i missing or damaged and other reasons, can be identified to be excluded.
   ③ hydraulic machine due to the use of dirt or dirt into the pump caused by gear, pump pump cover, floating sleeve, side panels and other parts of the movement between the surface wear and tear, etc., issued mechanical friction sound, this time Should be replaced by the liquid, strengthen the filter. Remove the pump before the oil, training the movement with the surface, damage or wear can not be repaired to be replaced before the assembly, before cleaning.
   ④ pump and motor installation is not heart, the coupling between the two coaxial degree requirements shall not be greater than the values ​​in Figure 3-45. In addition the coupling of flexible parts such as nylon columns, rubber rings and other damage should be replaced, the lack of make up.
   ⑤ due to the quality of gear processing problems such as gear tooth profile error and week error R, the two gears are bad, tooth surface roughness is not good, the length of the public line is too poor, the tooth backlash is too small, The contact area of ​​the gear is not in the middle of the tooth width and the height of the teeth. This is mainly the quality of the manufacturer's gear.