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                                            液壓機>>新聞中心
                                            液壓機柱塞泵噪聲怎么會變大
                                            發布者:admin  日期:2019-09-18  點擊:808
                                            小易為你介紹一下液壓機柱塞泵噪聲變大的原因。
                                            (1)檢查液壓機柱塞泵進油管是否吸進空氣,造成泵噪聲大、振動和壓力波動大。要防止泵因密封不良,吸油管阻力大(如彎曲過多,管子太長)引起吸油不充分、吸進空氣的各種情況的發生。
                                            (2)查泵和發動機(或電動機)同軸度是否超差:泵和發動機安裝不同心,使泵和傳動軸受徑向力,重新調整同軸度。
                                            (3)查伺服活塞與變量活塞運動不靈活,出現偶爾或經常性的壓力波動;如果是偶然性的脈動,多是因油臟、污物卡住活塞的原因所致,污物沖走可恢復正常,此時可清洗和換油。如果是經常性的脈動,則可能是配合件拉傷或別勁,此時應拆下零件研配或予以更換。
                                            (4)對于變量泵,可能是由于變量斜盤的偏角太小,使流量過小,內泄漏相對增大,因此不能連續對外供油,流量脈動引起壓力脈動。此種情況可適當增大斜盤的偏角,消除內泄漏。
                                            (5)前述的松靴,即柱塞球頭與滑靴配合松動產生噪聲、振動和壓力波動大,可適當鉚緊。
                                            (6)半球套磨損或破損時予以更換
                                            (7)經平磨修復后的配油盤,三角眉毛槽變短,產生困油引起比較大的噪聲和壓力波動,可用什錦三角銼將三角槽適當修長。
                                            英文:
                                            Xiaoyi will introduce to you the reason why the noise of the plunger pump of hydraulic press increases.

                                            (1) Check whether the intake pipe of the plunger pump of the hydraulic press sucks air or not, resulting in large noise, vibration and pressure fluctuation of the pump. It is necessary to prevent pump from inadequate oil suction and air suction due to poor sealing and high resistance of suction pipe (such as too much bending and too long pipe).

                                            (2) Check whether the coaxiality of the pump and engine (or motor) is out of tolerance: the pump and engine are installed in different concentricity, so that the pump and transmission shaft are subjected to radial force, and the coaxiality is readjusted.

                                            (3) The motion of servo piston and variable piston is not flexible, and occasional or frequent pressure fluctuations occur. If the impulse is accidental, it is mostly caused by oil dirt and dirt stuck on the piston. The dirt can be washed away and returned to normal. At this time, the oil can be cleaned and changed. If it is a regular pulsation, it may be a pull or other strength of the fittings. At this time, the parts should be dismantled and matched or replaced.

                                            (4) For variable displacement pumps, it may be that the deflection angle of the variable inclined plate is too small, the flow rate is too small, and the internal leakage is relatively increased, so the pump can not continuously supply oil to the outside world, and the flow fluctuation causes pressure fluctuation. In this case, the deflection angle of the inclined plate can be increased appropriately to eliminate the internal leakage.

                                            (5) The aforementioned loose boots, i.e. the loose combination of the plunger ball head and sliding boots, produce large noise, vibration and pressure fluctuation, and can be riveted properly.

                                            (6) Replacement of hemispheric sleeve in case of wear or breakage

                                            (7) The trigonometric eyebrow groove becomes shorter after repairing by smooth grinding, which results in bigger noise and pressure fluctuation caused by oil trapping. The trigonometric groove can be appropriately lengthened with a Shijin triangular file.
                                            文章來源:http://www.kougasha.net/news.asp?lt=307
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