TO SUBSTANTIATE THE DESIGN PARAMETERS OF THE APPARATUS FOR ARTIFICIAL INSEMINATION OF COWS

Abstract

Devices for artificial insemination of cows of both domestic and foreign production are equipped only with devices for seed dosing, illumination and mini-video cameras. There is no heating of the working part to ensure comfortable operation in winter conditions in these devices. The aim of the study is to develop a device that has heating of the working part, the possibility of visual control of the place of seed insertion in the cervix of the animal. The constructive and technological scheme of the apparatus for artificial insemination of cows is proposed. The device for artificial insemination contains a housing, a SHO-3M syringe, a device for fixing the syringe, a device for heating and maintaining the set temperature of the working part of the device, a mini-video camera with backlight. The image from the mini-video camera is continuously displayed on the screen of a mobile phone mounted on the bracket of the device body. The main design parameters of the apparatus for artificial insemination of cows are: the diameter of the tube, the length of the tube, the departure of the tip of the syringe beyond the tube, the heater power of the working part of the apparatus. As a result of the study, the design parameters of the working part of the apparatus for artificial insemination of cows were determined: the length of the inserted part of the tube is 40 cm, the tip of the syringe extends relative to the tube cut-off is 50 mm, the tube diameter is 0.02 m, the required heater power during its continuous operation is 7.72 watts. The heat transfer coefficient of the heater surface is determined using criterion equations.