Main parameters and common problems of hydraulic pump

创建于04.25

Main parameters and common problems of hydraulic pump

1.6.8 መዋቅር የውሃ ግፊት መዋቅር

Mu pump ya hydraulic, kazhinji rimwe divi rine kudzvanywa kwepamusoro, rimwe divi rine kudzvanywa kwepasi, saka ichagadzira simba rehydraulic risingaenzaniswi. Simba iri rinobata pa rotor, bearing uye mamwe makomponendi akakodzera, izvo zvinowedzera kupfeka, kupfupisa hupenyu hwebasa hwepump uye kuparadza basa rakajairika. Naizvozvo, kudzvanywa kwehydrostatic kunofanirwa kushandiswa kuenzanisa. Nzira yekuenzanisa inosiyana nezvivakwa zvepump. Semuenzaniso, pump yegear yekunze inotora chimiro chekuenzanisa simba re radial chinotungamira mafuta ekudzvanywa kwepamusoro kumatunhu ekudzvanywa kwepasi, kana chimiro chekuti chiteshi chekuburitsa mafuta chiri chidiki kupfuura chiteshi chekupinza mafuta; pump ye vane inotora chimiro chinotora kuenzanisa simba re radial re rotor nekugadzirisa mahwindo ekutora uye ekuburitsa mafuta mumapairi. Kune mamwe mapump e hydraulic (senge axial piston pump) ayo masimba anokonzerwa nemafuta ekudzvanywa kwepamusoro uye kwepasi haakwanisi kuenzaniswa, zvinofanirwa kugadziriswa nekushandisa thrust bearing, izvo zvinowedzera saizi yechivakwa chepump.

1.6.9 umphakeli wokuhlangana kanye nezinyathelo zokuthuthukisa ukumelana nokugqoka kwawo

(1) Iitlhopho le mekgwa e amanang le mekgwa ya mekgwa ya friction, stator, rotor le squeezer ke likarolo tse tharo tse ka sehloohong tsa pompo ea hydraulic e nang le phetoho e ntle. Ha pompo ea hydraulic e sebetsa, squeezer e tsamaea ka hare ho stator, 'me rotor e tsamaea ho latela squeezer le stator; kapa squeezer e tsamaea ka hare ho rotor, 'me squeezer le rotor li tsamaea ho latela stator hammoho. Kahoo, sehlopha sa mekgwa ya friction se thehoa pakeng tsa likarolo tse peli tse nang le motsamao o amanang. Ho gear pump, joalo ka meno le meno, qhama le sebopeho, gear le lehlakore; ho vane pump, joalo ka lehlaka le rotor, rotor le port plate, lehlaka le stator; ho swash plate axial piston pump, joalo ka plunger le cylinder bore, cylinder le port plate, slipper le swash plate; ho screw rod pump, joalo ka thapo le thapo, screw le sebopeho, ke mefuta e fapaneng ea mekgwa ya friction.

Njengoba izingxenye ezisemqoka zalawa ma-friction pairs ngokuvamile zisesimweni sokuhlangana sokushesha okuphezulu kanye nengcindezi yokuxhumana ephezulu, ukungqubuzana kwazo nokugqwala kuthinta ngqo ukusebenza kwevolumu, ukusebenza kwemishini, ingcindezi yokusebenza kanye nezimpilo zesevisi zephampu, ngakho-ke zinezimfuneko ezijwayelekile ezilandelayo.

① It has good sealing performance to ensure no leakage or small leakage and improve the volumetric efficiency of the pump.

② Dlala indima yokusekela, transfera inani elithile lamandla.

③ E sebetsa ka tshepo mo motseng, ka borai bo bo kgethegileng, bo botle ba borai le bophelo bo boholohali.

④ Low heat, low noise, no cavitation and impact resistance.

(2) Iizizathu eziyinhloko zokugqoka kwephedi yokucindezela ziwukugqoka kokunamathela nokugqoka kokugaya.

① Adhesive wear refers to the wear between friction pairs without complete lubrication. The mechanism of this kind of wear is that the two metal surfaces are uneven and the contact area is very small, so the contact specific pressure is large enough to exceed the yield limit of the material and cause plastic deformation, which makes the concave and convex metal surfaces adhere. When the two metal surfaces slide relatively, the concave and convex surfaces with lower shear strength are cut off and cause wear.

主要减少粘附磨损和提高耐磨性的措施如下：选择不易相互粘附的金属对，例如铁银或铁锡对，甚至铁和塑料对形成摩擦对，磨损很小（例如，使用zqai-4青铜缸体和38CrMoAl阀板形成摩擦对，磨损非常小）；当铁铁或铁锰对形成摩擦对时，磨损很小。为了减少摩擦，在金属表面形成低剪切强度的薄膜，例如氧化、磷化和氮化，这些在生产中常用，以防止腐蚀并减少摩擦；表面粗糙度降低，但适当的粗糙度也有利于润滑油膜的形成；硬度提高。

② Abrasive wear refers to the wear caused by hard abrasive particles such as metal particles, dust or other impurities such as oxides, fibers and resins. This kind of wear occurs in almost all friction pairs, especially in those with a certain oil film thickness. The wear particles will aggravate the surface wear, worsen the performance and shorten the service life of the friction pair.

Izi zinyathelo eziyinhloko zokunciphisa noma ukuvimbela ukugqokwa okubukhali ukuqinisa ukuhlinzwa nokuvimbela imithombo ye-hydraulic ekungcolisweni. Usayizi ojwayelekile wezimbobo ze-filter kufanele ube ngaphansi kwendawo yokuhlangana okufanele ivikelwe.

In addition, proper lubrication should be ensured for all friction pairs. As we all know, friction pairs such as gear mesh of gear pump, between rotor and valve plate of vane pump, between plunger and cylinder bore of swash plate axial piston pump all have self lubrication performance, which is one of the advantages of hydraulic technology. However, some components in the pump, such as bearings, universal hinges, need to take certain structural measures to achieve lubrication.

Shiya imininingwane yakho futhi
sizokuthinta.

Phone

WeChat