Diaphragm-type pneumatic proportional pressure reducing valve of edge cam driven by servo motor directly
A technology of servo motor and end face cam, which is applied in the direction of lifting valve, valve detail, safety valve, etc., can solve the problems of poor linearity, high cost, poor oil and water pollution ability, etc., and achieve improved dynamic performance, compact structure, and precision Adjustment effect
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[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0013] refer to figure 1 , a diaphragm type pneumatic proportional pressure reducing valve directly driven by a servo motor, including a casing 8, the servo motor 1 is fixed on the upper end cover 3 connected to the top of the casing 8, the output shaft of the servo motor 1 is connected to the sun gear of the planetary reducer 2 Through the clearance fit of the first key 32, the planetary gear 4 of the planetary reducer is connected to the upper end cam 10 through the bushing 5 and the pin shaft 6, driving the upper end cam 10 to rotate, and the outer ring and inner ring of the tapered roller bearing 7 are respectively formed by The ring gear 31 and the upper end face cam 10 are positioned, the outer ring and the inner ring of the deep groove ball bearing 29 are respectively positioned by the upper valve body 13 and the upper end face cam 10, and the upper pa...
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