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山东线材厂制作的预应力环形电杆的张拉夹具很有实用价值,它不但能自动张拉、卸荷,而且使用简便、工作可靠,受到工人的欢迎。现将该夹具介绍于下: 一、结构该夹具主要由拉爪(4)、张头(5)与顶盘(7)等另件组成(见张拉夹具组装图)。张头装在定位杆(13)上,通过六根穿过拉盘(16)孔的螺杆(18)与支承盘组装;拉爪用销子均布在拉盘圆周上,拉盘再与油缸轴(10)
The tension fixtures of prestressed annular poles made by Shandong Wire Factory are of practical value. They can not only be automatically tensioned and unloaded, but also easy to use, reliable, and welcomed by workers. The fixture is described below: First, the structure The fixture is mainly composed of pulling claw (4), flat head (5) and top plate (7) and other parts (see drawing fixture assembly drawing). The head is mounted on the positioning rod (13) and is assembled with the support disc through six screws (18) passing through the hole of the disc (16); the claw is uniformly distributed on the circumference of the disc with the pin, and then the disc is connected with the cylinder shaft. (10)