Automatic ball serving device for tennis training

Abstract

The invention discloses an automatic ball serving device for tennis training, which comprises a rack and a ball barrel arranged on the rack, a plurality of tennis balls are contained in the ball barrel, a rotating ball falling mechanism for sorting the tennis balls out of the ball barrel one by one is arranged at the bottom of the ball barrel, a sliding groove allowing the tennis ball to freely slide down is obliquely formed under the rotating ball falling mechanism, a shooting mechanism is arranged close to the tail end of the sliding groove and comprises an acceleration wheel mechanism and a friction wheel mechanism which are distributed up and down, and the acceleration wheel mechanism comprises a second motor and an acceleration wheel driven by the second motor; the friction wheel mechanism comprises a third motor and a friction wheel driven by the third motor. The acting force applied to the tennis ball falling from the sliding groove by the shooting mechanism is asymmetric, so that the shot tennis ball has rotation change.

Description

Technical field [0001] The present invention relates to a sports training equipment, in particular a automatic tee for tennis training. Background technique [0002] Tennis is a sports, common one-to-one single and two-to-two double hits, against the two sides, with a racket to hit tennis to the other side, the goal is to make the other party can't hit the ball back to me site. [0003] Tennis game is carried on a rectangular site. The tennis field is used to draw the boundary. The standard tennis court has a length of 23.77 meters (78 feet). The racket width of the single game is set to 8.23 ​​meters (27 feet), and the double game is 10.97 meters (36 feet). The lines of the left and right sides of the stadium are called "single-way lines" or "double-edge line". The white lines at both ends of the racket are called "bottom lines". The middle of the two bottom lines is marked with a short median point. The spheres are parallel to the bottom line of the stadium, through the entire ...

AI Technical Summary

Problems solved by technology

But the inventor found that, similar to the above-mentioned patent application, the tennis ball machines in the prior art can only make tennis balls be shot at high speed to simulate a flat serve, but they cannot handle topspin and side spin. good simulation

This makes the training process mechanically tedious, and the trainer can easily adapt to the serving habit of the serving machine in a short period of time, but this is not the real sense of receiving and serving training, but just a kind of mechanical repetition or practice makes perfect

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