37results about How to "Increase output thrust" patented technology

A motor which uses a permanent magnet is provided in which output thrust is improved by increasing a magnetic saturation limit and preventing reduction in magnetic flux and generation of heat is reduced by inhibiting generation of an eddy current in a magnetic pole. An N magnetic pole is formed such that its width increases as the distance from a stator increases on a side of an N pole magnetic yoke and an S magnetic pole is formed such that its width increases as the distance from the stator increases on a side of an S pole magnetic yoke. With this structure, a saturation limit of magnetic flux at an entrance of yoke which is a connection section between the N magnetic pole and the N pole magnetic yoke is increased and motor thrust is improved.

A cylindrical linear magnetic resistance motor of horizontal magnetic flow relates to the motor field, which overcomes uneven distribution of exciter field in the prior cylindrical mixed horizontal magnetic motor structure and eddy current loss caused by the parallel of the part of flux path and the motor axial direction. The invention includes a casing (6), an armature core (1), an armature winding (2), a rotor tooth (3), a spaced ring (4) and a shaft (5), wherein each phase of armature core (1) is fixed closely to an internal wall of the casing (6), the rotor tooth (3) and the spaced ring (4) are fixed and jacketed in sequence on the shaft (5) in an alternative arrangement way, 2n numbers of teeth are set on each armature core (1), n is a natural number, each phase of armature core (1) is staggered by an angle of 360degrees / 2mn in the peripheral direction, m is a phase number of the motor, the coil winding direction of the armature winding (2) on adjacent tooth of each phase of armature core (1) is reverse, and all coils on the same phase armature winding (2) are series-connected together. The invention can replace the prior cylindrical mixed horizontal resistance motor.

The invention relates to a mechanical thrust device, particularly to a thrust augmentation device. The thrust augmentation device comprises a support, at least one group of transmission devices, a driving device and a conveying belt connected with the driving device. According to the thrust augmentation device, on the premise that the driving device drives the conveying belt to operate to produce the thrust, a rocking bar connected with the conveying belt swings according to the trajectory of the conveying belt and drives a third transmission bar fixedly connected with the rocking bar to swing. The third transmission bar drives the transmission devices, the transmission devices augment the output thrust according to a lever principle, the augmented thrust is output by sixth ejection bars of the transmission devices, and different augmented thrust can be produced by the aid of the ejection bars with different lengths as required, so that the thrust strength is guaranteed effectively while the consumed energy is reduced.

The invention discloses a composite flexural vibration sandwich type double-foot linear ultrasonic motor vibrator, and belongs to the technical field of piezoelectric ultrasonic motors. The vibrator solves the problem that the output thrust of a motor is affected by inconsistent vibration properties of two driving feet of the conventional flexural vibration modal beam type linear ultrasonic motor vibrator. Eight flexural vibration piezoelectric ceramic chips are sleeved on a stud of the vibrator, two end covers are respectively screwed at two ends of the stud to compact the eight flexural vibration piezoelectric ceramic chips, an electrode plate is respectively arranged between the adjacent flexural vibration piezoelectric ceramic chips and between the contact faces of the flexural vibration piezoelectric ceramic chip and the big end face of the end cover, insulating bushes are arranged between the contact faces of all the flexural vibration piezoelectric ceramic chips and the stud and between the contact faces of all the electrode plates and the stud, two thin-wall beams are symmetrically arranged at two sides of the big end face of each end cover, a mounting seat is fixed at the outer side of each thin-wall beam, a driving foot is arranged on the small end face of each end cover, and the driving feet are blocks, the sections of which are in the same shape as the small end faces. The vibrator is suitable for an ultrasonic motor.