2results about How to "Avoid rubbing against each other" patented technology

The embodiment of the utility model discloses a direct-connection type range extender and a hybrid electric vehicle, and the direct-connection type range extender comprises an engine which comprises a crankshaft; the generator comprises a generator housing, which is provided with a centering shaft; the rotor bracket is in transmission connection with the crankshaft and sleeves the periphery of the centering shaft; one of the crankshaft and the centering shaft is provided with a positioning hole, and the other one is provided with a positioning part; and the positioning hole is matched with the positioning part in shape, so that the positioning part is embedded in the positioning hole. According to the utility model, the centering degree among the crankshaft, the generator shell and the rotor bracket is improved in the installation process, the precision requirement of installation equipment is reduced, and the installation difficulty of the generator on an engine is reduced.

The utility model discloses a dry quenching boiler pipeline isolation device, including first sheath, connecting plate, second sheath and third sheath, the first sheath right side low position is equipped with second sheath, the first sheath left side low position is equipped with third sheath, the first sheath, second sheath and third sheath structure are same, and first sheath, second sheath and third sheath top all weld and have connecting shell, the both ends of connecting shell all are open structure, and the both sides bottom of first sheath, second sheath and third sheath all weld and have connecting sleeve. The utility model through being equipped with a plurality of sheaths, and the bolt installation and dismounting between sheath and connecting plate can be selectively installed and used according to the demand, can isolate the pipeline, avoids a large number of circulating air volume and washes the pipe wall to make the shaking, the clearance smaller elbow place rubs each other, makes the pipe wall thin and the pressure strength reduction to the security of pipeline installation is increased.