Mechanical type automatic transmission

Abstract

The invention discloses a mechanical type automatic transmission. The automatic transmission provided by the invention comprises a cylindrical shell, a front end cover, a rear end cover, a power input shaft arranged in the cylindrical shell through the front end cover, a power input gear, a gearshift driven gear, a gearshift motor, a worm, a worm wheel and a gearshift driving gear, wherein the power input gear and the gearshift driven gear are arranged at the two ends of the power input shaft; a shaft sleeve (105) is sleeved on the power input shaft (1) and connected with a crank (106), and a carrier gear shaft is fixedly connected with the other end of the crank; the power input gear (200) is connected with input gears (201-209) on the periphery of the power input gear (200) through a carrier gear (108), and the gear shafts of the input gears are coaxially provided with the respective output driving gear (301-309); and output driven gears (401-409) arranged on a power output shaft (4) are respectively meshed with the respective output driven gears, and the input end of each of Hall approach switches (K21-29) is abutted against a neodymium iron boron magnetic steel. The automatic transmission provided by the invention has the advantages of convenience in use, high transmission efficiency and small power loss.

Description

technical field [0001] The invention relates to an automatic transmission, in particular to a mechanical automatic transmission based on an electromagnetic clutch, which belongs to the technical field of electromechanical equipment. Background technique [0002] In the field of agricultural machinery and agricultural product processing, due to agronomic requirements or the needs of agricultural product processing technology, the speed of its working parts often needs to be adjustable, and the speed adjustment range of the working parts also determines the adaptability of the machine; The passing performance also requires the gearbox to have more speeds to choose from. For the speed adjustment of the working parts of field machinery, the speed is often adjusted by replacing the gear or sprocket. For example, the speed adjustment of the seeding shaft of the seeder, random The tool must carry multiple sets of gears or sprockets, which causes inconvenience in work, increases aux...

AI Technical Summary

Problems solved by technology

[0002] In the field of agricultural machinery and agricultural product processing, due to agronomic requirements or the needs of agricultural product processing technology, the speed of its working parts often needs to be adjustable, and the speed adjustment range of the working parts also determines the adaptability of the machine; The passing performance also requires the gearbox to have more speeds to choose from. For the speed adjustment of the working parts of field machinery, the speed is often adjusted by replacing the gear or sprocket. For example, the speed adjustment of the seeding shaft of the seeder, random Tools must carry multiple sets of gears or sprockets, causing inconvenience in work, increasing auxiliary time, and reducing work efficiency

For the field of agricultural product processing, it is possible to design a multi-gear gearbox, but the cost is high, which affects the economy of use; there is also a variable frequency motor for speed regulation. Although the speed adjustment is convenient, it is generally only suitable for light-load occasions, otherwise it will Reduce the life of the frequency converter; automatic transmissions in the fields of automobiles and tractors, the automatic transmission technology based on hydraulic torque converters has matured, but it has problems such as low efficiency, power loss, and high cost. In terms of mechanical efficiency, its power loss is higher than that of mechanical gearboxes

Images