Design method of steel ball safety coupling

Abstract

The invention discloses a design method of a steel ball safety coupling which is used for connection between shafts of a mechanical transmission part and takes an effect on torque transfer, belonging to the manufacture field of calculating the contour dimension of a steel ball chamber of the coupling, the number of steel balls and the like. The method comprises the following steps of: firstly, determining the specification number of the safety coupling, determining the contour dimension and the dimension of a rotor chamber and estimating the effective inner diameters of the steel balls according to the power and the rotating speed of a motor; drafting a graph with AUTOCAD, and automatically calculating the sectional area and the centroid radius of the chamber; inputting each parameter into an MATHCAD program, and calculating through a series of formulae by the program to obtain transmitted power or protection torque; contrasting with input requirements, revising the effective inner diameters of the steel balls and recalculating the transmitted power; and repeatedly revising to finally obtain the weight of the steel balls required to be filled. By using an auxiliary program to which the invention relates, design calculation is fast and the accuracy is high, and the accurate control of the transmitted power and the protected torque of the safety coupling can be realized.

Description

Technical field [0001] The invention discloses a scientific design of a steel ball type safety coupling product used for the connection between the shaft and the shaft of the mechanical transmission part of the metallurgy, mining, shipbuilding, papermaking and heavy machinery industries, and plays the role of transmitting torque. , It belongs to the manufacturing field of designing steel ball cavity, section shape, size, steel ball quantity and other systems of steel ball type safety coupling. Background technique [0002] The steel ball type safety coupling utilizes the centrifugal force generated by the high-speed rotating steel ball to generate frictional force on the coupling housing to transmit torque. The transmitted torque increases with the increase of speed. Therefore, it has the characteristics of realizing soft start, and can realize automatic overload safety protection, and automatically resume transmission when the load returns to normal. Since the starting characte...

AI Technical Summary

Problems solved by technology

Since the starting characteristics of the steel ball coupling are closely related to the shape and size of each part, the number of steel balls, etc., its calculation principle has high complexity

In the past, when designing and manufacturing products, the cavity, cross-sectional shape, manufacturing size and number of steel balls could only be calculated by hand or calculator. It is difficult for the coupling to meet the performance of the product such as accurate transmission torque and protection torque

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