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Gear pump reduces performance
#1

应当指出的是,旋转叶片和凹槽之间的间隙太大而不能降低性能。因此,有必要确保合理的公差配合以及形状和位置公差值,注意旋转叶片的热膨胀,避免旋转叶片和凹槽的粗糙度,注意油的冷油粘度,并设计旋转叶片足够的弹力。使用圆弧分隔时,转子中心的附加偏心率不应太大。否则,如果旋转叶片穿过两个圆弧,它将趋于在相交点处脱离气缸壁,这将引起撞击声。通常,小型齿轮泵的尺寸为0.20〜0.25mm,大型齿轮泵可以适当增大。排气死区中有压力油的声音,剩余容积中有压力油的声音。当齿轮泵达到极限压力时,两种压力油在与真空室连接时会高速注入真空室,与转子和气缸壁碰撞产生声音。两个体积的大小和位置与噪声有关。

The impact noise of the valve plate on the valve seat and the support part sucks a large amount of gas
The more circulating oil of the gear pump, the greater the valve noise, the higher the valve jump, the larger the valve area, the greater the noise of the valve, and the material of the valve has a certain influence. The noise of the rubber valve disc should be better than that of the steel sheet or laminate. For this reason, it is necessary to control the oil intake, and the valve flap must be closed in time and tightly. Pay attention to the selection and structure of the valve.
This noise will increase when the echo and bubble burst sound in the box increase.
Therefore, this noise will increase significantly when the gas ballast is turned on or when the atmosphere is vented. If the amount of gas ballast is adjustable, the amount of gas ballast can be adjusted reasonably.
The noise made when a large amount of gas and oil is discharged and hits the oil baffle and other parts
If the parts are not rigid enough or not fastened, vibration and collision will occur, which will increase the noise. Therefore, the oil baffle should not only have sufficient rigidity and be fastened, but also, when it needs to contact other parts (such as the fuel tank), the method of clamping rubber can avoid the collision noise caused by vibration and improve the oil blocking effect.
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#2
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