Hydraulic-drive stepless speed changing gearbox for crawler-type spraying machine

Abstract

The present invention relates to a hydraulic-drive stepless speed changing gearbox for a crawler-type spraying machine. The gearbox comprises a reduction gearbox and a hydraulic progressive transmission connected in an abutted manner with an input end of the reduction gearbox, wherein the reduction gearbox comprises a box body and a reduction gear set disposed inside the box body, the box body is an integrally-formed cuboid and is horizontally arranged, one end of the box body bends downwards, the reduction gear set comprises nine transmission shafts installed inside the box body in turn from an input end to an output end of the box body, and contacting parts of the transmission shafts and the box body are all provided with bearings. The gearbox is advantageous in that the reduction gearbox is horizontally arranged, so the height is greatly reduced; the reduction box body is integrally formed, and thus is high in strength and not easy to damage; a rotating speed of 2800-3200 r / min output by an engine is reduced to 160-200 r / min through the reduction gear set of the reduction box, a walking requirement is achieved; and a rotating speed section is ensured through the progressive transmission, thereby enabling a walking speed to be adjustable.

Description

technical field [0001] The invention relates to a gearbox, in particular to a hydraulically driven inorganic variable speed gearbox for a crawler sprayer. Background technique [0002] my country's fruit planting ranks first in the world in terms of variety and area. In recent years, with the implementation of the land transfer policy, orchards with standardized and large-scale planting models have developed rapidly. Due to the differences in fruit varieties, soils and climate conditions in various regions , the requirements for the sprayer for spraying are also different. For example, in the water-dense rice garden, the original soil moisture content is very high. The soil is wet, especially when spraying is urgently needed after the rain. The wheeled sprayer cannot enter the garden for spraying, but the crawler sprayer can overcome it, but the crawler sprayer needs a large power drive, and the fan And the speed of the drug pump needs to be kept stable, but the walking speed ...

AI Technical Summary

Problems solved by technology

[0003] At present, the speed of the engine on the sprayer is constant at 2800-3200r / min, which can meet the working power of the fan and the drug pump, and the walking needs stepless speed change to change the speed range, so the gearbox is used to reduce the output speed of the engine and The use of inorganic variable speed and gearbox to meet the walking requirements, but most of the engines that meet the requirements of the gearbox on the market are installed vertically and are assembled in half, which cannot meet the requirements of low height and high strength of the sprayer. Therefore, it is There is an urgent need to develop a low-height and high-strength crawler sprayer with a hydraulically driven inorganic variable speed reduction box. After searching, no technical solution identical or similar to the present invention has been found.

Images