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[CN 201721226500.2] Built-in oil supply device for crankshaft of cold heading machine
[CN 201721226500.2] Title of a built-in oil supply device for the crankshaft of a cold heading machine: Application number of a built-in oil supply device for the crankshaft of a cold heading machine: CN 201721226500.2 Applicant: Huangshan Shengrui Jinggong Machinery Co., Ltd. Application date: 2017-9-23 Patent type: Utility model This utility model discloses a built-in oil supply device for the crankshaft of a cold heading machine, including a crankshaft, both ends of which are rotatably connected on a rotating seat, the shaft body of the crankshaft is connected with an output rod through a bushing. The crankshaft has a first oil injection hole in the crankshaft along its axis. The first oil injection hole extends to the other end surface of the crankshaft along the axial direction of the crankshaft. The end of the oil injection hole is sealed by the crankshaft, and the whole of the first oil injection hole is in the shape of a blind hole; the first oil injection hole is provided with a second oil injection hole connected with the bushing at the connecting position of the bushing, the oil outlet end of the second oil injection hole is provided with a hole edge, the hole edge is connected with the crankshaft as a whole, the bushing is provided with an oil collecting groove matching the hole edge at the hole edge, and the depth of the oil collecting groove is the same as the hole edge The height is the same, and an oil passage leading to the inside of the bushing is provided in the bushing, and the oil passage is connected with the oil collecting groove. The utility model can avoid the problem that the oil pipe is easily worn and broken with the movement of the output rod, and ensures the safety and stability during oil supply.
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