Variable speed input and constant speed output device with double adjustment of hydraulic pressure and servo motor

Abstract

The invention discloses a variable-input and constant-output device adopting hydraulic and servo motor double regulation. The variable-input and constant-output device comprises a primary differential gear train, a secondary differential gear train, a hydraulic system, a servo motor, a rotating speed sensor, an ordinary gear train step transmission box and a reversing system. Hydraulic and mechanical double power flow transmission is adopted, and output power is large. In a double constant speed regulating scheme, the hydraulic system is used as a main executing system of constant-speed regulation to finish the regulation of large-range rotating speed variation caused by sudden load change, and the small-power servo motor is used as an auxiliary regulation executing system of constant-speed output to rapidly regulate small-range rotating speed fluctuation. In a single constant-speed regulating scheme, the small-power servo motor is used as an executing system of constant-speed regulation to rapidly regulate small-range fluctuating rotating speed. The three functions of constant speed output, stepless transmission and step transmission are creatively combined by the device to meet the requirements of different organizations and different work condition environments on a transmission device.

Description

technical field [0001] The invention belongs to the field of construction machinery and manufacturing equipment, and specifically relates to a constant-speed and divided differential gear train combined with a hydraulic pressure and a servo motor, double adjustment of the hydraulic pressure and the servo motor, and a combination of stepless speed regulation and stepped speed regulation. The output device of stepless speed regulation. Background technique [0002] In the automatic flow production line, there are speed changes caused by changes in the load on the conveyor belt, and the positioning of the mechanical arm is not accurate due to the change in the speed of the transmission belt. , the change of the output speed will affect the machining accuracy; in the process of construction machinery operation, there is a problem of sudden load change. In order to ensure the accuracy of the operation, a constant speed and a wide range of speed adjustment are required. [0003] ...

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Problems solved by technology

[0005] In order to solve many shortcomings of the constant speed output device in the prior art, such as complex structure, low efficiency, and inability to withstand the impact of sudden load changes, the present invention adopts hydraulic and mechanical dual power flow transmission, the output power is relatively large, and the continuously variable speed control is flexible, convenient, and reasonable. The unique transmission design makes the split ratio of the hydraulic power small, and the efficiency of the system is improved. At the same time, it is perfectly combined with the mechanical stepped speed change, which can realize segmental speed regulation, and optimize the transmission ratio to realize full-range speed regulation.

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