One-to-three pump transmission transfer box

Abstract

The invention discloses a one-to-three pump transmission transfer box which comprises a transfer box shell, a power input end arranged in the shell and provided with an input gear, and three spline output shafts with output gears. The one-to-three pump transmission transfer box is characterized in that a high-elasticity coupler is connected with a power shaft of an engine, the input gear is respectively meshed with the output gears and an idler wheel, power of the engine is transferred to the three output gears through the input gear and the idler wheel, and the three output gears are used for transferring power of the engine to the three output shafts at different rotating speeds and rotating directions. A lubricating oil pool and a lubricating oil tube are arranged on the shell, and a heat-radiating rib plate is arranged outside the shell. The one-to-three pump transmission transfer box has the advantages of simple structure, small volume, easiness in manufacture and low cost, one path of power input, three paths of power output at different rotating speeds and rotating directions, good lubricating effect of bearings and long service life because the lubricating oil pool and the lubricating oil tube are arranged on the shell, good heat radiating effect and small operation temperature rise because the heat-radiating rib plate is arranged outside the shell, and good safety and reliability because a pressure limiting valve is arranged on a rear shell.

Description

technical field [0001] The invention relates to the field of engineering technology, in particular to a one-to-three pump transmission transfer case of a large-tonnage all-terrain crane and a crawler crane. Background technique [0002] When large-tonnage cranes, especially truck cranes over 350 tons, are working, in order to meet the power requirements of each hydraulic system, it is necessary to distribute power through a transfer case to drive multiple different hydraulic pumps to work at the same time. Although the existing transfer case also has the form of "one split three", the output steering and speed are the same. To realize the power output of different steering and speed, three hydraulic pumps are needed; or a peripheral reversing box is used to The power output of different steering and speed will lead to a large installation space, which will also increase the cost and complexity of the equipment; in addition, the existing transfer case uses an external oil pum...

AI Technical Summary

Problems solved by technology

Although the existing transfer case also has the form of "one split three", the output steering and speed are the same. To realize the power output of different steering and speed, three hydraulic pumps are needed; or a peripheral reversing box is used to The power output of different steering and speed will lead to a large installation space, which will also increase the cost and complexity of the equipment; in addition, the existing transfer case uses an external oil pump to provide lubrication for the bearings, which will also increase the cost of the equipment. Complexity and cost; the external reversing box and external oil pump, the installation and connection of the transfer case are complicated, which reduces the reliability and safety of the transfer case

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