High-speed self-balancing spindle oil dividing structure of inertia friction welding machine

Abstract

The invention discloses a high-speed self-balancing spindle oil dividing structure of an inertia friction welding machine. The high-speed self-balancing spindle oil dividing structure comprises a spindle and an oil dividing component, and an oil inlet connector and an oil return connector are formed in the oil dividing component. An oil inlet channel and an oil return channel extending in the axial direction of the spindle are arranged on the spindle. The oil dividing component is composed of an oil dividing ring of an annular structure, the oil dividing ring is rotationally arranged on the spindle through rolling bearings at the two ends, and a dynamic pressure bearing matching structure is formed between the oil dividing ring and the spindle and is located between the bearings at the twoends. The oil inlet channel and the oil return channel communicate with the corresponding oil inlet connector and oil return connector correspondingly through tow radial oil channels. The high-speedself-balancing spindle oil dividing structure has the advantages that hydraulic power can be reliably provided, spindle safety can be guaranteed through a ceaseless oil pressure self-balancing high-speed high-pressure oil film self-sealing structure, and a thrust bearing is allowed to be provided with a large end play; mounting difficulty is reduced, and damping is reduced; and the high-speed self-balancing spindle oil dividing structure is long in service life, and is especially suitable for high-speed heavy-load operation environments of 6000 r / min or above.

Description

technical field [0001] The invention relates to inertial friction welding equipment, in particular to an oil separation structure for a high-speed self-balancing main shaft of an inertial friction welding machine. Background technique [0002] Inertial friction welding is a type of friction welding in which the energy required for welding is mainly provided by the rotational kinetic energy stored on the welding machine. In inertia welding, one of the workpieces is attached to the flywheel while the other is not allowed to rotate. Accelerate the flywheel to a predetermined speed to store the required energy, then disengage the drive motor and press the workpiece together with friction, so that the two joint surfaces rub against each other under pressure. As the speed of the flywheel decreases, the kinetic energy stored on the rotating flywheel is converted into heat energy generated by the friction between the welding surfaces and dissipated. The workpiece rotating with the...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a high-speed self-balancing main shaft oil separation structure for an inertia friction welding machine in order to solve the shortage of poor sealing life of the connection part of the oil separation structure on the main shaft in the existing inertial friction welding equipment. structure, and form a rotating fit structure with the main shaft to match the rolling bearing and the dynamic pressure bearing, and use the high-speed and high-pressure oil film between the high-speed rotating main shaft and the oil separator ring to form a self-sealing structure, so that there is no need to set a seal between two relatively rotating components components for significantly longer service life

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