Slipper deformable tooth stepless meshing adjustable gear

Abstract

A vibration transporter for harvesting fruit which includes an inclined platform that receives falling fruit at an upper end and delivers the fruit to a lower end. The platform vibrates to move the fruit from the upper end to the lower end and is coupled to an orbiting shaft eccentrically mounted to a driven shaft. The speed of rotation of the driven shaft is selected to be commensurate with the vertical displacement of the platform so that the fruit bounces toward the lower end of the platform during upward travel of the vibrating platform.

Description

technical field [0001] The invention belongs to the technical fields of gear transmission and mechanical stepless transmission design and manufacture. Background technique [0002] Gear transmission is the most widely used transmission mechanism in machinery at present. It has the following advantages: it can ensure a constant ratio of instantaneous angular velocity between the two gears; The peripheral speed range is relatively large, from very low to as high as 300m / s; the transmission efficiency is high, and the primary transmission efficiency is as high as 98-99%; the service life is relatively long. However, its manufacturing precision and installation precision are high, and more importantly, its transmission ratio is a fixed value, which cannot realize stepless speed change. At present, a large number of mechanical continuously variable transmissions use friction transmission, which generally has the following defects: 1. It is difficult to obtain ultra-low speed out...

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Problems solved by technology

However, its manufacturing precision and installation precision are high, and more importantly, its transmission ratio is a fixed value, which cannot realize stepless transmission

At present, a large number of mechanical continuously variable transmissions use friction transmission, which generally has the following defects: 1. It is difficult to obtain ultra-low speed output, and the speed range is relatively narrow; 2. There are defects such as small transmission torque and low transmission power; 3. Carrying capacity Low, poor overload resistance and impact resistance; 4. High requirements for parts processing and lubrication, short life, complex structure and process, high manufacturing cost; 5. Large sliding rate, low mechanical efficiency; some still have pulsating output and power flow discontinuities

However: the current pulsating continuously variable transmission has several fatal weaknesses, which restrict its development in a wider field: 1. The pulsation of the output makes it impossible to be used in occasions that require high output uniformity. And the auxiliary of the overrunning clutch cooperates with the optional flow filter to reduce the pulsation, and because of the inertia factor of the entire operating system and the overrunning effect of the overrunning clutch, the pulsation at the output end will be significantly smaller than the theoretical value, but this is only an appearance phenomenon, the actual The power flow transmission is still output in the form of pulse intervals according to the theoretical value. The discontinuity of this power flow is a major factor causing the low efficiency of the pulsating continuously variable transmission; The vibration caused by the unbalanced inertial force and inertial moment will be obviously intensified at high speed, and the dynamic load generated by it is still an important reason for the low mechanical efficiency; 3. The overrunning clutch as the output mechanism is the only one in the whole body. The friction transmission components also have a series of corresponding defects of friction transmission. They are the weak link in the power chain of the whole mechanism. Aspects of development

4. The multi-phase structure set up to reduce the pulsation will cause too many repeated constraints in the system, which will cause the machine to be sensitive to errors and working environments, reduce efficiency, increase dynamic load, and increase the number of phases. , The debugging and installation process is complicated, the failure rate increases, and the cost increases

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