| 摘要 |
FIELD: machine building.SUBSTANCE: automatic combined microprocessor temperature controller of a thermal machine with a mechanical drive of a fan comprises a thermal relay with a temperature sensor of a thermal machine connected to an electric pneumatic valve, the output shaft of the thermal machine is connected with the input shaft of an angular gear reducer by means of a planetary gear box, in the body of which there is an input shaft, an output shaft and a four-link planetary mechanism, which comprises: two central solar geared wheels and three coupled satellites, connected accordingly as follows: the first satellite - with the first annular ring, the second satellite - with a ring gear, and the third satellite - with the second central annular ring, and a cage; besides, the input shaft of the box is connected with the ring gear by means of the first blocking friction clutch, and the same time the input shaft has the possibility of connection with the help of the first free-wheel mechanism with the first central annular ring; at the same time the cage is stopped with a braking friction clutch; the central annular gear ring and the output shaft are connected with the help of the second blocking friction clutch; the output shaft of the gear box is connected with the central annular gear ring by means of the second free-wheel mechanism; friction clutches are connected with three control elements, which create a control device, comprise pneumatic spring single-sided mechanisms and electric pneumatic valves; the planetary gear box and the angular reducer create a fan drive, which is connected with the control device; a controller comprises a temperature sensor of the thermal machine, a capacity sensor of the thermal machine and a temperature sensor of cooling air, besides, the temperature sensor of the thermal machine is connected to the first comparing device, the capacity sensor of the thermal machine and the cooling air temperature sensor are connected with the second and third comparing devices by means of the first and second devices of correction of static sensor characteristics; the first, second and third devices are connected accordingly with the first, second and third setting devices and with a summation device connected in its turn to a control device of the fan drive, the program of operation of which contains a logic of operation of a combined relay six-way microprocessor temperature controller.EFFECT: increased reliability of a mechanical drive of a cooling fan, radiators and a thermal machine, reduced fuel consumption by a thermal machine.9 dwg |
