齿轮泵

It is the micro-external gear pump that the key component of the system, which the speed may reach 3,700 Rpm, the instantaneous pressure may reach 35 MPa as well as the addendum circle diameter only has 14 mm.

系统中的心脏和动力源就是微型外啮合齿轮泵，它的转速可达3700 Rpm，瞬时工作压力可达35 MPa，其中齿轮的齿顶圆直径只有14 mm，同时它也是影响该系统合格率的重要部件之一。

Overseas low-pressure gear pump gear often used square structure,水力控制阀, that is the tooth width is equal to addendum circle diameter.

国外低压齿轮泵的齿轮常采用方形结构，即齿轮的齿宽等于齿顶圆直径。

Pitch circle diameter: d = mz = 3X12 = 36 Tooth crown heights: ha = m (f0 + x)= 3X (l +0.5)= 4.5 Tooth High: hf = m (f0 + cx)= 3X (l +0.25-0.5)= 2.25 Tooth full height: h = ha + hf = 4.5 +2.25 = 6.75 Addendum circle Chemical pumps diameter: Da = d +2 ha = 36 +2 X4.5 = 45 Fixed string tooth thickness: Sxn = m (π/ 2 * cos2a + xsin2a)= 3X (1.387 +0.6428 X0.5)= 5.125 Fixed string of high gear tooth thickness measurement: hxn = m (π/ 8 * sin2a + xsin2a)= 3X (0.7476X0.117X0.5)= 2.42 Modulus coefficient x0.5 m3 O20 ° pressure angle tooth thickness Sxn5.12 fixed string Addendum Coefficient string f1 fixed gear tooth thickness measurement most high hxn2.42 Teeth z12 2, shaft wear and tear maintenance: Axis gear pump wear is mainly because with the support roller shaft at both ends between the friction and wear, so that smaller shaft diameter.

分度圆直径：d=mz=3X12=36 齿顶高：ha=m（f0+x）=3X（l+0.5）=4.5 齿根高：hf=m（f0+c-x）=3X（l+0.25-0.5）=2.25 齿全高：h=ha+hf=4.5+2.25=6.75 齿顶圆直径：Da=d+2ha=36+2X4.5=45 固定弦齿厚：Sxn=m（π/2*cos2a+xsin2a）=3X（1.387+0.6428X0.5）=5.125 固定弦齿厚测量用齿高：hxn=m（π/8*sin2a+xsin2a）=3X（0.7476X0.117X0.5）=2.42 模数m3变位系数x0.5 齿形角o20°固定弦齿厚Sxn5.12 齿顶高系数f1固定弦齿厚测最齿高hxn2.42 齿数z12 2、轴的磨损维修：齿轮泵中轴的磨损主要是因为轴两端与支撑滚针间的摩擦磨损，使轴径变小。

The water hydraumic internal gear pump with anti-leaking and anti-wear and anticorrosive abilities is studied.

水液压内啮合齿轮泵是直接以自来水为工作介质的水液压系统的重要动力源。

There are ram pumps, piston pumps, gear pumps, diaphragm pumps, lift pumps, centrifugal pumps, etc., each having its own place in the sun--or under Fluoroplastic Single-Stage Single Suction Centrifugal Pump the ground, as the case might be.

有冲压泵，柱塞泵，齿轮泵，隔膜泵，电梯泵，离心泵等，各有其自身在阳光的地方-或在地面，视情况可能。

Colfax Pump Group, the United States focus on system-screw pump Colfax Pump Group, the United States focus on system-screw pump Colfax Pump Group, the United States is the world's leading industrial pumps and fluid control systems manufacturer, products include three screw pump, screw pump, screw pump, centrifugal pumps, gear pumps and fluid control systems, has The product brands include well-known in the industry Allweiler, ImoPump, Houttuin, Warren and Zenith, in the United States, Germany, Sweden, the Netherlands, France, China and India has manufacturing plants.

Colfax Pump Group， the United States focus on system-screw pump ；是由上海泰丰泵业制造有限公司提供的阀门新闻，中文译文仅供参考(上海泰丰泵业制造有限公司还生产真空泵消防泵化工泵排污泵离心泵及液下泵，料浆泵，胶体磨，试压泵，卫生泵，深井泵，计量泵，更多水泵欢迎您的选购。)美国科尔法泵业集团专注系统螺杆泵美国科尔法泵业集团，是世界领先的工业泵和流体控制系统制造商，产品主要包括三螺杆泵，双螺杆泵，单螺杆泵，离心泵，齿轮泵及流体控制系统，拥有的产品品牌包括在业内著名的Allweiler，ImoPump，Houttuin，Warren和Zenith，在美国、德国、瑞典、荷兰、法国、中国和印度等设有制造工厂。

My agent is currently the main product has: Japan Yuken of the vane pump, variable piston pumps, proportional valves, direction valves Switzerland Wandfluh Various proportional valve, direction valves, Cartridge Valves, micro - valves, special purpose valves Taiwan DINGZING of high-quality polyurethane oil seal, dust-laden Sweden CEJN vibration-resistant pressure gauges, various Express connectors, UHP Products USA PARKER of hose , joints, pipe, card sets of joints and seals Italian CARCO the large, heavy-duty hydraulic and rotary seal (size 10 ~ 2000mm) Italian Walvoil multi-way valves and control components Italian Marzocchi high-pressure gear pump and high pressure gear motors Italian intermot motors JAPAN Sumitomo QT Internal Gear Pump, Pressure Switch JAPAN ACT Italian combination of letters POLYPAC rubber, covered with dust, Georgia to circle Sri Lanka special closure, wearable ring Japan NOK sealed polyurethane high temperature oil seal, seal ERIS Netherlands, Germany COG various O-ring on the Japanese Osaka Hydraulic Sealing Products Germany B + S: DAS, DSM portfolio of sealing, a variety of high-pressure sealing rubber cloth Italian ATS: cell to circle sturt closure,dust ring, rotated grid to love circle Shenzhen Lihua Industrial Co., Ltd. Chongqing Office has officially set up to welcome friends from all walks of life call consultative letter.

我公司目前代理的主要产品有：◆日本Yuken的叶片泵、变量柱塞泵、比例阀、方向阀◆瑞士Wandfluh各种比例阀、方向阀、插装阀、微型阀、特殊用途阀◆台湾DINGZING的高品质聚氨脂油封，尘封◆瑞典CEJN的耐振压力表、各种快速接头、超高压产品◆美国PARKER的胶管、接头、钢管、卡套接头及密封件◆意大利CARCO的大型、重载液压及旋转密封（尺寸 10～2000mm）◆意大利Walvoil多路阀及控制元件◆意大利Marzocchi高压齿轮泵和高压齿轮马达◆意大利intermot马达◆日本SumitomoQT内啮合齿轮泵，日本ACT压力开关◆意大利POLYPAC橡胶组合封、尘封、格来圈、斯特封、耐磨环◆日本NOK密封、耐高温聚氨脂油封，荷兰ERIS骨架油封，德国COG各种O型圈◆日本坂上液压密封产品◆德国B+S：DAS、DSM组合密封、各种夹布橡胶高压密封◆意大利ATS：格来圈、斯特封、特康防尘圈、旋转格来圈深圳爱力华实业有限公司重庆办事处已正式成立，欢迎各界朋友们来电来函咨询。

With the piston pump, diaphragm and gear pumps is different is that single-screw pump can be used for pharmaceutical filling and measurement.

和齿轮泵相比，单螺杆泵可输送高粘度的物质。与柱塞泵、单螺杆泵及齿轮泵不同的是，单螺杆泵可用于药剂填充和计量。

The multi-gear pump ultimately solves some important problems such as unbalanced radial force and high flow pulsation of the common gear pump.

多齿轮泵部分地解决了普通齿轮泵径向力不平衡及流量脉动大等问题。

The multi-gear pump is a new type hydraulic power component based on the theory of the common external gear rotary pump.

多齿轮泵是在普通外啮合齿轮泵理论基础上发展起来的新型液压动力元件。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。