A ship lift and its reducer

Abstract

The invention discloses a speed reducer of a ship lift. The speed reducer comprises a box and a horizontal synchronous shaft arranged in the box. The speed reducer is further provided with a first-stage speed reduction mechanism arranged on the outer wall of the box. The first-stage speed reduction mechanism comprises a speed reducer input shaft, a planetary gear speed reducer and a gear shaft. The gear shaft is connected with an output shaft of the planetary gear speed reducer, and the gear shaft penetrates through the outer wall of the box. Transmission between the gear shaft and the horizontal synchronous shaft is achieved through a gear pair with the transmission ratio being 1:1. According to the speed reducer of the ship lift, the speed reduction ratio of the first-stage speed reduction mechanism is high, an extra speed reduction mechanism does not need to be arranged in the box, and accordingly the size of the box can be correspondingly arranged; besides, transmission between the gear shaft and the horizontal synchronous shaft is achieved through the gear pair with the speed ratio being 1:1, and the appearance size of the speed reducer can be reduced as much as possible under the situation that the center distance is the same. The invention further discloses the ship lift comprising the speed reducer, and the preceding advantages are achieved.

Description

technical field [0001] The invention relates to the fields of mechanical engineering and process engineering, in particular to a speed reducer of a ship lift. The present invention also relates to a ship lift comprising the above speed reducer. Background technique [0002] With the development of China's machinery industry, various machinery and equipment have been widely used. [0003] Taking the ship lift as an example, the ship lift is a mechanical device that uses the power of a mechanical device to lift or lower a ship, overcome the concentrated water level drop on the channel, and make the ship pass the dam smoothly. The hoisting system of the ship lift is mainly composed of 4 winch hoists connected to each other through a ring-shaped closed synchronous shaft system. Each hoist lifts a group of hull lifting points, and one or two reducers are respectively installed in each hoist, and the reel is driven by the reducer to run. [0004] The drive system of the ship li...

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Problems solved by technology

[0007] However, due to the high speed requirements of the synchronous shaft (less than 120rpm), the transmission ratio of the input stage reduction is required to be large (generally greater than 6.3), so the large gear in the single-stage gear mechanism will have to increase its own modulus. In this way, it will easily interfere with the adjacent gear shaft and cause accidents; and in order to avoid the large gear in the input stage reduction gear from interfering with the adjacent gear shaft due to its oversized size, in the prior art, it is often It is solved by increasing the center distance, but this will lead to a corresponding increase in the overall size of the reducer, which is not conducive to reducing the size of the reducer

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