Large-starting-torque carbon-free trolley driver

Abstract

The invention discloses a large-starting-torque carbon-free trolley driver. A driving part is composed of a winding reel, a wire hanging disc, a starting disc, a right stopping ring and a left stopping ring. The winding reel is a cylinder or a cone, and a pull wire is wound around the winding reel to perform traveling transmission. The wire hanging disc is used for hanging and hindering the pull wire, and the outer edge face of the starting disc can be a circumference face of which the radius is kept unchanged in the circumferential direction or can be a curve face of which the radius is increased in the circumferential direction, wherein the minimum radius of the starting disc is larger than the maximum radius of the winding reel. At least one wire hanging tooth or at least one wire hanging notch is distributed in the outer edge of the wire hanging disc, and the bottom ends of the wire hanging notches or the roots of the wire hanging teeth are flush with the outer edge face of the starting disc. The right stopping ring is located at the right end of the winding reel, the radius of the right stopping ring is larger than the radius of the right end of the winding reel, the left stopping ring is located at the left end of the starting disc, and the radius of the left stopping ring is smaller than that of the starting disc. A transmission shaft is sleeved with a through hole in the driving part, the pull wire first acts on the outer edge face of the starting disc, and because the radius of the starting disc is larger than that of the winding reel, the starting torque is larger than traveling driving torque.

Description

technical field [0001] The invention relates to a rotary power conversion device, in particular to a driver for converting a rope pulling force into a rotary power torque. Background technique [0002] "Carbonless trolley" is a mechanical device that converts the potential energy of a heavy hammer with a certain mass and a certain height into rotational kinetic energy through a winding driver to drive the trolley to walk and turn. This kind of car design has become one of the major competitions for scientific and technological innovation of college students across the country. The designs of various participating cars emerge in endlessly, among which the design of the torque output driver that converts the tension of the rope into rotational power is also diverse, and there are some designs with unique effects, such as Chinese patents, the publication numbers are CN203158933U, CN203220759U and other designs. However, during the competition, it is required that the trolley c...

AI Technical Summary

Problems solved by technology

However, during the competition, it is required that the trolley cannot exert any external force when it is started. In order to make the trolley run smoothly and travel a long distance, the radius of the driving bobbin should not be made too large. It is difficult to start, and even sometimes there is a situation that it cannot be started at all, and the designs of the above-mentioned drives have not solved the problem of starting such a car

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