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Nutation disc infinitely variable speed transmission

A technology of stepless speed change and transmission, which is applied in the direction of transmission, transmission parts, friction transmission, etc., can solve the problems of complex process and low transmission efficiency, and achieve complex mechanism, reduce impact and noise, and reasonable design Effect

Inactive Publication Date: 2019-04-16
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This device not only solves the shortcomings of similar continuously variable transmissions such as low transmission efficiency, complicated process, and no overload protection, but also prevents shock and noise when changing speeds. It can be widely used in engines of automobiles and helicopters, and has broad application prospects

Method used

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  • Nutation disc infinitely variable speed transmission
  • Nutation disc infinitely variable speed transmission
  • Nutation disc infinitely variable speed transmission

Examples

Experimental program
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Embodiment Construction

[0031] see figure 1 — Figure 11 , a nutating disc type continuously variable transmission device, which has four main functional modules: the main transmission module (input shaft, output shaft, combined offset shaft end, tapered roller bearing, first friction ring, second Friction ring, torus key, torus key tightening spring, limit nut, compression sleeve, spring sliding sleeve, disc spring and compression sleeve, etc.), power generation module (big friction cone, set nut , transmission shaft, limit nut, friction cone return spring, gasket, flat key, small friction cone, ring magnet, fixed buckle, solenoid and generator), power storage and management module (battery and controller), Speed ​​regulation module (stepper motor, a pair of speed regulation bevel gears, threaded sleeve, transmission sleeve, limit nail, limit nail tightening spring, limit nail sleeve and first friction ring).

[0032] The input shaft 8 adopts a structure supported by double fulcrums to increase it...

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Abstract

The invention belongs to a speed reducer, and in particular, relates to a nutation disc infinitely variable speed transmission. The nutation disc infinitely variable speed transmission is characterized by consisting of an input shaft, a nutation disc, a spherical surface key, a pressing disc, a speed adjusting bevel gear, an output shaft, a friction cone, a generator, a battery and a stepper motor; the nutation disc is inserted in the input shaft, and can slide and rotate relative to the input shaft; the stepper motor drives the speed adjusting bevel gear mounted on a bearing sleeve cup, and drives a friction surface to axially move to achieve a speed change purpose; and the friction cone intermittently works through an electromagnetic axial clutch, and drives the generator to generate electricity only when the electric quantity of the battery is insufficient. Through a mode of changing a deflected angle of a deflected shaft section, the infinite speed change of the transmission is realized; and the transmission is reasonable in design, novel and unique, and solves the defects of low efficiency, speed change impact and no overload protection in similar infinitely variable speed transmissions.

Description

technical field [0001] The invention belongs to the field of continuously variable transmissions, in particular to a nutating disk type continuously variable transmission device. Background technique [0002] In the helicopter transmission system, according to the different flight states and missions of the helicopter, choosing an appropriate rotor speed can make the main rotor work in a better state. Existing helicopter transmission systems are transmission systems with a fixed transmission ratio, and the main rotor speed can only be realized by adjusting the engine speed. However, when the speed of the turboshaft engine changes greatly, its fuel consumption rate will increase sharply. Therefore, in order to give full play to the advantages of main rotor speed change, the adoption of continuously variable speed technology in the helicopter transmission system will help meet the fuel economy requirements of future helicopters. The total transmission ratio of the traditional...

Claims

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Application Information

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IPC IPC(8): F16H15/50F16H57/023F16H57/08F16H61/664
CPCF16H15/50F16H57/023F16H57/08F16H61/664
Inventor 王三民崔渊博程辉朱慧玲赵凯周启航
Owner NORTHWESTERN POLYTECHNICAL UNIV
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