Fast hydraulic power pack structure

Abstract

The invention discloses a fast hydraulic power pack structure and belongs to hydraulic driving devices. The fast hydraulic power pack structure comprises a valve body, an oil storage cylinder, an air pump and an oil pump, wherein a large pump plunger shaft cavity and a small pump plunger shaft cavity are formed by the oil pump, an oil pump oil conduit is formed in the oil pump, oil inlet conduits, oil outlet conduits and oil returning holes are formed in the valve body, each set of oil inlet conduit comprises an air pump oil inlet conduit, a first large pump oil inlet conduit, a second large pump oil inlet conduit and a small pump oil inlet conduit, each set of oil outlet conduit comprises an air pump oil outlet conduit, a large pump oil outlet conduit, a small pump oil outlet conduit and a pressure release oil conduit, each set of oil returning hole comprises an air pump oil returning hole, a large pump oil returning hole, a small pump oil returning hole and a pressure release oil returning hole, oil inlet valves are arranged on the air pump oil inlet conduit, the first large pump oil inlet conduit, the second large pump oil inlet conduit and the small pump oil inlet conduit respectively, an oil outlet valve is arranged at one end of the air pump oil outlet conduit, a returning oil pressure adjusting valve is arranged at the other end of the air pump oil outlet conduit, an oil outlet valve is arranged at one end of the large pump oil outlet conduit, a returning oil pressure adjusting valve is arranged at the other end of the large pump oil outlet conduit, an oil outlet valve is arranged at one end of the small pump oil outlet conduit, a returning oil pressure adjusting valve is arranged at the other end of the small pump oil outlet conduit, and a pressure release valve is arranged on the pressure release oil conduit. The fast hydraulic power pack structure has the advantages of being labor-saving in operation, high in working efficiency, good in working state selectivity, low in probability of failure, and long in service life.

Description

technical field [0001] The invention belongs to the technical field of hydraulic drive devices, and in particular relates to a fast hydraulic pump station structure. Background technique [0002] The fast hydraulic pump station mentioned above is mainly but not limited to be used on the jack hydraulic press to provide hydraulic oil for the dive device of the jack hydraulic press (commonly known as the workstation, the same below), so that the cylinder column of the cylinder of the dive device Machining the workpiece on the workpiece plate bracket (the workpiece plate bracket is installed on the jack hydraulic press and corresponds to the lower part of the cylinder column), such as punching or bending the workpiece, etc. [0003] The jack hydraulic press mentioned above is a special machine that can play a role in filling gaps compared with large hydraulic presses (also known as hydraulic presses), because large hydraulic presses have high investment costs, large volume and t...

AI Technical Summary

Problems solved by technology

However, as a jack hydraulic press, labor-saving, fast, efficient operation and flexible selection (such as choosing between pneumatic and manual) are important factors. Specifically, if the cylinder column of the aforementioned diving device cannot Rapid extension under the stroke state will undoubtedly affect the processing efficiency of the workpiece, and the operator will work harder in the process of manually driving the oil pump to pump oil; and if the cylinder column of the oil cylinder of the dive device contacts the workpiece Finally, the oil pump cannot be used to supply oil to the oil cylinder with a small amount of oil and a large pressure, so the operator's manual operation of the oil pump is difficult for ordinary people to bear, and it also affects the processing efficiency of the workpiece; also, if the structure of the valve body itself has problems If it is unreasonable, it will cause the volume of the entire hydraulic pump station to increase and there may be an undesired high probability of failure during use

These technical problems have not given any technical enlightenment that can be used for reference in the aforementioned patent documents cited

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