Direct-connected multi-piece friction power take-off

Abstract

The invention provides a direct-connected multi-piece friction power take-off, and belongs to the technical field of machineries. The problem of low transmission efficiency of an existing friction power take-off is solved. The direct-connected multi-piece friction power take-off comprises a cylinder-shaped shell, wherein an input opening and an output opening are formed in the two ends of the shell correspondingly; an input shaft is arranged in the shell in a penetrating mode, and one end of the input shaft extends out of the input opening; an output shaft is arranged in the shell in a penetrating mode and one end of the output shaft extends out of the output opening; an internal spline connection part coaxially sleeving the end of the input shaft is arranged at one end of the output shaft; an external spline connection part corresponding to the internal spline connection part is arranged on the circumferential outer side of the input shaft, and a friction plate unit is arranged between the internal spline connection part and the external spline connection part; and a piston which translates along the inner wall of the shell sleeves the end, away from the output shaft, of the inputshaft and is located in the shell. The direct-connected multi-piece friction power take-off reduces friction between the piston and the input shaft when the piston moves, and the transmission efficiency is higher.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a direct-connected multi-plate friction power take-off. Background technique [0002] A power take off (Power Take Off, abbreviated as PTO) is one or more sets of transmission gears, also known as a power output device, which is generally composed of a gearbox, a clutch, and a controller, and is output with the low-grade gear of the gearbox or the auxiliary box. Shaft connection to output power to external working devices, such as lift pumps, etc. [0003] Chinese patent literature discloses a power take-off with a friction plate [application number: 201620971177.0], which includes: a cylinder, an output shaft is supported by a bearing inside the cylinder; the output shaft is a hollow structure and the hollow structure is output by The middle part of the shaft extends to the end of the output shaft to form an opening, and an air inlet hole is also opened on the cylinder body at a...

AI Technical Summary

Problems solved by technology

[0006] 1. The overall internal structure is complex and takes up a lot of space, which is not conducive to assembly and has higher sealing requirements

[0007] 2. The power take-off is driven by the input shaft, transmission gear and output gear, so the internal energy consumption is high and the transmission efficiency is low

[0008] 3. The air intake hole is set at the end of the power take-off, which increases the lateral space occupied by the power take-off and does not use the installation of the power take-off

[0009] 4. PTO production uses a lot of materials and high cost

[0010] 5. When the pneumatic piston is in operation, it will always generate a certain force on the input shaft, resulting in high rotational friction of the input shaft and poor transmission efficiency

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