齿轮泵设计课程设计.doc

齿轮泵设计课程设计
齿轮油泵设计
中文摘要
齿轮泵是用两个齿轮互啮转动来工作,对介质要求不高。一般的压力在6MPa以下,流量较大。齿轮油泵在泵体中装有一对回转齿轮,一个主动,一个被动,依靠两齿轮的相互啮合,把泵内的整个工作腔分两个独立的部分。A为吸入腔,B为排出腔。齿轮油泵在运转时主动齿轮带动被动齿轮旋转,当齿轮从啮合到脱开时在吸入侧
(A)就形成局部真空,液体被吸入。被吸入的液体充满齿轮的各个齿谷而带到排出侧(B),齿轮进入啮合时液体被挤出,形成高压液体并经泵排出口排出泵外。
齿轮油泵广泛应用于石油、化工、船舶、电力、粮油、食品、医疗、建材、冶金及国防科研等行业。齿轮油泵适用于输送不含固体颗粒和纤维,无腐蚀性、温度不高于150℃、粘度为5~1500cst的润滑油或性质类似润滑油的其它液体。试用各类在常温下有凝固性及高寒地区室外安装和工艺过程中要求保温的场合。
English abstract
Gear pump with two gears meshed rotating to work, no high requirement for medium General pressure below 6MPa, the larger flow. Gear pumps in the pump body with a pair of rotary gear, a drive, a passive, rely on the two gears mesh with each other, the whole work within the pump chamber in two
separate parts. A is a suction chamber, for discharging cavity B. Gear pumps in operation when the passive gear driven rotary gear, when the gear was torn off from the mesh to the suction side ( A ) on the formation of partial vacuum, the liquid is sucked into the. The liquid was aspirated with gear each tooth Valley and take to the discharge side ( B ), into gear meshing liquid is formed by extrusion, high pressure liquid pump outlet and discharged out of the pump.
Gear pumps are widely used in petroleum, chemical, electric power, shipping, oil, food, medical, building materials,
metallurgy and defense industry and scientific research. Gear pump is applicable to transport so