The blowout prevention box used in the oilfield pumping machine processed by our factory in large quantities, the ball seat is the key part in the blowout prevention box assembly, and the inner arc surface roughness value is low and the precision is high. For this reason, we designed The special tool shown in the figure. Working principle: The main body 6 is placed on the lathe tail cone of the lathe, and the hook head wedge key 7 is matched with the sleeve keyway, and is fastened by the screw 8. After the good knife is fixed, the tension shaft 11 is fixed on the square knife holder, according to Automatic feeding in the retracting direction, pulling the rack 9 through the tension shaft 11 to rotate the gear 3, so that the turning tool 1 rotates around the mandrel 10, and when the second knife is processed, the screw is loosened
Solar Charging System uses advanced glass encapsulation materials and multi-layers lamination for better battery performance, longer service life, anti-reflective and high transparency. It including Solar Panel and Portable Power Station, this system can satisfy 8 devices charging at the same time.
Portable Solar Power Station,New Energy Solar Panel,Portable Seam Fold Solar Panel
Henan Idui Import and Export Trade Co., Ltd , https://www.acesunraylight.com