Double-branch combined plunger pump provided with built-in oil path, and riveting tool

Abstract

A double-branch combined plunger pump provided with a built-in oil path, and a riveting tool, relating to the technical field of riveting tools. In a first aspect, the double-branch combined plunger pump provided with the built-in oil path comprises a pump body (1); a plunger is arranged in the pump body (1); a plunger cavity allowing the plunger to move is formed on the pump body (1); and an oil inlet (2) configured to be communicated with a crankshaft cavity (18) on a main body (17) is formed on the wall surface of the pump body (1) where an outlet of the plunger cavity is located. In a second aspect, the riveting tool comprises the main body (17); an oil tank (20) and the crankshaft cavity (18) are arranged in the main body (17); the oil tank (20) is communicated with the crankshaft cavity (18); a plunger port (19) allowing the plunger to move is formed on a side surface of the main body (17); the double-branch combined plunger pump provided with a built-in oil path is sealingly connected to the wall surface of the main body (17) where the plunger port (19) is located; and the oil inlet (2) is communicated with the crankshaft cavity (18). The device does not require an oil pipe to enable the oil tank to be communicated with the combined plunger pump, so that oil leakage can be effectively reduced, thereby effectively prolonging the service life of the riveting tool and reducing the maintenance frequency.

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