Novel rigid coupling capable of being used for high-speed rotary connection and preparation method thereof

Abstract

The invention discloses a novel rigid coupling capable of being used for high-speed rotary connection and a preparation method thereof. The novel rigid coupling comprises a left connecting flange, a connecting shaft and a right connecting flange, and a first regular hexagon inner hole is formed in the center of the end face of the left connecting flange in a penetrating mode. A plurality of first threaded holes and first counter bores are formed in the end face of the left connecting flange with the first regular hexagon inner hole as the center in a circumferential array mode, and the left connecting flange is arranged on the left end portion b of the connecting shaft in a matched and sleeved mode through the first regular hexagon inner hole. In order to protect important parts of a transmission system from being damaged, the connecting shaft can play a role of a fuse by forming an annular notch groove in the radial position of the connecting shaft, when the relative torque between a driving shaft and a driven shaft exceeds the designed maximum value, the connecting shaft will be broken. Therefore, important transmission parts on the driving shaft and the driven shaft are protected from being damaged, and the connecting shaft is replaced after troubleshooting.

Description

technical field [0001] The invention specifically relates to the technical field of shaft couplings, in particular to a novel rigid shaft coupling that can be used for high-speed rotary connections and a preparation method thereof. Background technique [0002] Coupling is a general-purpose component in the field of mechanical transmission. It is mainly used for the connection between the driving shaft and the driven shaft. At present, the coupling is divided into two categories: rigid and flexible. Due to the low sensitivity of the flexible coupling, small torque transmission, The installation space is large, so rigid couplings are increasingly used in some high-precision and high-torque motion situations. The ultra-low inertia and high sensitivity characteristics of rigid couplings can play an excellent role in servo motion systems. performance, but the existing rigid couplings have high requirements on the symmetry accuracy of the axis, especially in the environment of hi...

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Problems solved by technology

[0002] Coupling is a general-purpose component in the field of mechanical transmission. It is mainly used for the connection between the driving shaft and the driven shaft. At present, the coupling is divided into two categories: rigid and flexible. Due to the low sensitivity of the flexible coupling, small torque transmission, The installation space is large, so rigid couplings are increasingly used in some high-precision and high-torque motion situations. The ultra-low inertia and high sensitivity characteristics of rigid couplings can play an excellent role in servo motion systems. performance, but the existing rigid couplings have high requirements on the symmetry accuracy of the axis, especially in the environment of high-speed movement, the small relative displacement between the shafts is easy to damage the coupling, and then make the shaft, bearing and other moving parts Therefore, how to realize a safe and reliable rigid coupling in the high-speed and high-torque motion mode is a technical problem in the field of mechanical transmission at present.

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