Jack-up differential gearbox

Abstract

A jack-up differential gearbox comprises a box, two parallel planetary differential gear trains identical in tooth number, multiple gears and two input shafts. The two parallel planetary differentialgear trains are each composed of a sun gear, an inner gear ring, a bearing, a planet carrier and a planet wheel. The two planet carriers are supported and mounted on the box. The inner gear rings aresupported on the two planet carriers through the bearings, and can freely rotate around the planet carriers. The planet carriers are supported and mounted on the box and serve as output of the gearbox. The planet wheels are mounted in pin holes in the planet carriers. The input shafts divide power to the two sun gears through the gears. The input shafts are engaged with outer teeth of the inner gear rings through the gears. According to the jack-up differential gearbox, the reliability and maintainability of the equipment are improved, the structural weight of a crane is reduced, and cost is reduced; meanwhile, the operation speed is increased, and efficiency is high; the gearbox is compact in structure and small in appearance size, and the manufacturing cost is reduced; and due to the fact that high-performance materials are selected, and an advanced process is adopted, the reliability of the gearbox is improved, the service life of the gearbox is prolonged, maintenance is easy, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of gearbox design, in particular to a lifting differential gearbox. Background technique [0002] When the port gantry crane is working, there are two directions of movement: lifting and translation. In the traditional design, two sets of independent transmission systems are completed separately, and the motor gearbox for lifting movement is installed on the trolley; some of the running transmission systems of the trolley are arranged on the trolley, or in the machine room on the column, through the wire rope, traction The trolley runs. The hoist is the main drive, and the load is heavy, requiring a high-power motor and a large-sized gearbox. The motor and the gearbox are heavy, and the running trolley and the main beam need to be strengthened, resulting in a substantial increase in the weight of the overall structure and an increase in cost. At the same time, due to the heavy weight of the trolley and the...

AI Technical Summary

Problems solved by technology

Lifting is the main drive, and the load is heavy. It requires a high-power motor and a large-sized gearbox. The motor and the gearbox are heavy, and it is necessary to strengthen the running trolley and the main beam, resulting in a substantial increase in the overall structure weight and increase the cost.

At the same time, due to the heavy weight of the trolley, the motor on it, and the reducer, it is not conducive to fast operation and improving the efficiency of loading and unloading operations, and the energy consumption is relatively high.

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