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发明申请
US20120003105A1 DRY VACUUM PUMP 有权
干真空泵

DRY VACUUM PUMP
摘要：
The invention pertains to a dry-type vacuum pump comprising: at least one pumping stage (2), at least one rotary shaft (3) supported by a lubricated support bearing (7a, 7b) at least one lubricant deflector (12) and one ring seal (13) mounted on the rotary shaft, the ring seal (13) being mounted between the lubricant deflector (12) and the pumping stage (2), the lubricant deflector being mounted between the lubricated support bearing (7a, 7b) and the ring seal, a first reservoir (28) containing a first reserve of liquid lubricant (16a), said first reservoir (28) being in communication with the lubricated support bearing (7a, 7b) in a first volume (V1), a lubricant splashing unit mounted on the rotary shaft (3) in the first reservoir (28), one end of the lubricant splashing unit being bathed in the first reserve of liquid lubricant (16a), The vacuum pump has a second reservoir (15) comprising a second reserve of liquid lubricant (16b), the second reservoir (15) being separated from the first reservoir (28) by a separation wall (20) having a communication aperture (34) that puts the first and the second reserves of liquid lubricant (16a, 16b) into communication. A lubricant return channel (17) having one inlet (18) situated so as to be facing said lubricant deflector (12) opens into the second volume (V2) of the second reservoir above the second reserve of liquid lubricant (16b).
摘要（中）：

本发明涉及一种干式真空泵，包括：至少一个泵送级（2），至少一个由润滑支承轴承（7a，7b）支撑的旋转轴（3），至少一个润滑油导流器（12）和一个 安装在旋转轴上的环形密封件（13），环形密封件（13）安装在润滑剂导流器（12）和泵送级（2）之间，润滑剂偏转器安装在润滑的支承轴承（7a，7b）和 所述环形密封件，包含第一储存液体润滑剂（16a）的第一储存器（28），所述第一储存器（28）在第一容积（V1）中与所述润滑的支承轴承（7a，7b）连通，润滑剂 飞溅单元安装在第一储存器（28）中的旋转轴（3）上，润滑剂飞溅单元的一端被沐浴在第一储备液体润滑剂（16a）中。真空泵具有第二储存器（15） 液体润滑剂的第二储备（16b），所述第二储存器（15）与所述液体润滑剂分离 第一储存器（28）通过具有连通孔（34）的分隔壁（20），所述连通孔（34）将第一和第二液体润滑剂储存器（16a，16b）置于连通状态。 具有位于面向所述润滑剂偏转器（12）的一个入口（18）的润滑油返回通道（17）通向第二储液器的第二容积（V2），在第二液体润滑剂储备（16b）之上。

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