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Invention Grant
US08642922B2 Welding torch with a torch housing and drive for welding rod transport 有权
焊枪带有割炬外壳和驱动用于焊条输送

Welding torch with a torch housing and drive for welding rod transport
Abstract:
In a welding torch including a torch housing (28) and, preferably, a tube bend (29) capable of being fastened thereto, wherein a drive unit (30) for feeding a welding wire (13) is arranged in the torch housing (29) and the drive unit (30) is formed by at least one pair of rollers, in particular a drive roller (31) and a pressure roller (32), as well as a drive motor, a part of the torch housing (28) is designed as a component of the drive unit (30). A rotor (45), in particular a motor shaft (46), of the drive motor (33) is fastened to the torch housing (28) via a bearing, in particular via bearings (43, 44), to stabilize and position the rotor (45). In a welding wire feed drive motor including bearings (43, 44), a rotor (45), in particular a motor shaft (46) and a rotor winding (49) or rotor magnets, and a stator pack, in particular stator winding (47) or stator magnets, at least a part of the motor shaft (46), in particular the retention zone of a drive roller (31), is electrically insulated from the housing, in particular stator housing (65) or base body (37).
Abstract(Chinese):

在包括割炬壳体（28）的焊枪中​​，优选地，能够固定在其上的管弯头（29），其中，用于供给焊丝（13）的驱动单元（30）布置在所述炬壳体（29） ）和驱动单元（30）由至少一对辊，特别是驱动辊（31）和压力辊（32）以及驱动电动机（torch壳体）的一部分形成， 被设计为驱动单元（30）的组件。 驱动马达（33）的转子（特别是马达轴46）通过一个轴承，特别是通过轴承（43,44）固定到割炬壳体（28）上，以稳定和定位 转子（45）。 在包括轴承（43,44），转子（45），特别是电动机轴（46）和转子绕组（49）或转子磁体的定子组中，特别是定子绕组 47）或定子磁体，电动机轴（46）的至少一部分，特别是驱动辊（31）的保持区域与壳体，特别是定子壳体（65）或基体（37）电绝缘 ）。

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