A Pneumatic Automatically Controlled Tennis Ball Throwing Machine

Abstract

The invention discloses an air pressure type automatic control tennis ball throwing machine, which comprises: a launching tube, a first stepping motor, an air pump, a third stepping motor and a lead screw all arranged on a mobile platform; The upper opening is connected with the upper ball frame through a hose; the slider is arranged in the launch tube, and the rear end of the slider is connected with the drive shaft of the first stepping motor through a crank linkage mechanism, which can be moved by the first stepping motor It slides back and forth in the launch tube under the drive of the crank linkage mechanism; the spherical high-pressure nozzle is set at the front end of the slider, and the spherical high-pressure nozzle is connected to the air pump through the pipeline; the driving shaft of the third stepping motor is connected to the lead screw, and the nut is set on the lead screw. The rod can move back and forth along the lead screw, and the nut is connected with the rear end of the launch tube through the connecting rod mechanism, so that the pitch angle of the launch tube can be adjusted. The tennis ball tossing machine is easy to use, can send and throw balls in different directions and heights, and meets the needs of various types of serving balls in tennis training.

Description

technical field [0001] The invention relates to the field of tennis training equipment, in particular to a pneumatic automatic control tennis ball throwing machine. Background technique [0002] At present, there are single-wheeled tennis ball machines and mobile tennis training machines for tennis training. Among them, the single-wheel tennis ball machine is simple in structure, low in cost, adjustable in serving speed, and serves by a single friction wheel, such as the Chinese utility model patent "single-wheel tennis ball machine" disclosed in Patent No. CN201110008642.2. Program. However, the single-wheel tennis ball machine has poor controllability of the ball speed, and it is also difficult to control the ball path and the ball landing point. It cannot automatically move the ball and adjust the ball direction. Training action, poor practicality. Simultaneously, serving tennis is one of the most difficult techniques for players to master, and the single-wheel tennis ...

AI Technical Summary

Problems solved by technology

[0004] Based on the problems existing in the prior art, the purpose of the present invention is to provide a pneumatic automatic control tennis ball throwing machine, which can solve the problem that the existing tennis training machine cannot automatically move the ball, cannot automatically adjust the direction of the ball, and cannot be used for difficult games. Backhand training, and the problem that it does not have the function of tennis ball throwing and cannot be used for player throwing training

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