A bulkhead vibrator comprises a bed plate, a frame, a buffering power accumulator, an exciter, a motor, a motor bedplate, a damping pad, a belt pulley, a triangular belt, a main shaft, a self-aligning bearing, a nozzle tip, a bearing seat press cover, an end cover and eccentric blocks. Owing to the addition of the buffering power accumulator and the damping pad, non-direct vibration of the motor and independent lubricating system ensuring the bearing lubrication, the inventive vibrator completely overcomes the disadvantages of short life time, high damage ratio, etc. of the electromagnetic vibrator and the vibrating motor vibrator. The main shaft is provided with three eccentric blocks, and the relative position of the eccentric blocks can be changed according to the material characteristics so as to adjust the exciting force to obtain higher and adjustable exciting force. The inventive vibrator can eliminate the friction between the material and the bulkhead and the relative stability among materials, so that the material can be smoothly discharged from the bulk opening. The inventive vibrator can be widely applied in preventing the storage bulk from blocking among industries including metallurgical industry, chemical industry, building materials, thermal power, coal, food, cement, pharmacy, fertilizer foodstuff, foundry, ceramics and grinding material.