48results about How to "Large output thrust" patented technology

The invention relates to a novel pressure-accumulation underwater moving object attitude control system which is provided with a main stream pipe, wherein the front, back, left and right surfaces of the main stream pipe are respectively provided with a water-absorbing hole matrix; the lower part of the main stream pipe is connected with one end of a pressure line, and the other end of the pressure line is connected with a pressure-accumulation bin; the pressure line is sequentially provided with a pressure pump and a one-way valve from the main stream pipe to the pressure-accumulation bin; the pressure pump is connected with a pressure differential controller; the pressure-accumulation bin is provided with a plurality of expansion ports; the expansion ports connect actuating mechanisms with the pressure-accumulation bin through rubber hoses; each actuating mechanism comprises a control actuator and a ceramic valve; and each control actuator is provided with a synchronous motor and a synchronous motor controller. The quantity, mounting positions and mounting directions of the actuating mechanisms can be changed to control the degree of freedom of any dimension, and thus, the system has the advantages of high generated thrust, accurate attitude control and the like. The system has small structural volume, and can satisfy the demands of underwater moving object attitude control for miniaturization and integration.

The invention discloses a pulse signal acquisition device and method imitating the traditional Chinese medicine pulse diagnosis method. The acquisition device includes a wrist rest, a position adjustment mechanism, a through-axis motor, a transmission mechanism, a pulse sensor, a signal preprocessing circuit, a single-chip microcomputer and a computer; The method of locating the off-position pulse sensor first, and then locating the inch-position and scale-position sensors is adopted, which completely imitates the finger-distributing method of pulse diagnosis in traditional Chinese medicine, and it is easier and more accurate to locate the pulse sensors at the three positions of the inch, close, and ruler at the same time; The pulse signal amplitude judges the validity of the pulse signal collection, so that the pulse signal collection can be automatically started and ended without human intervention. On the basis of accurate positioning, the present invention controls the through-axis motors one by one through the control algorithm, sequentially adjusts the pressing depth of the pulse sensor at the three parts of Cun Guan Chi, realizes the pulse diagnosis technique of "alternating fingers and fingers", and completely simulates the pulse diagnosis of traditional Chinese medicine "Three Departments and Nine Marquises" technique of pulse detection.

The invention discloses a quasi-sinusoidal winding linear motor and belongs to the technical field of linear motors. The quasi-sinusoidal winding linear motor aims to solve the problems that due to the mutual intersection of the ends of coils of all phases of windings, existing panel type three-phase linear permanent magnet synchronous motors are high in copper consumption, high in manufacturing cost and large in thrust ripple. According to the quasi-sinusoidal winding linear motor, a primary winding is an m-phase winding, wherein m is the phase of the motor; m winding coils are sequentially and closely arranged in the relative movement direction within each polar distance range of a primary iron core, each winding coil is rectangular and is wound around the outer surface of the primary iron core, the cross section of each winding coil in the winding direction is a parallelogram, and a quasi-sinusoidal structure is formed on the air gap side of the primary iron core; the arranging methods, within all the polar distance ranges of the primary iron core, of the m winding coils are the same, and all the winding coils on the primary iron core form an m-phase winding. The invention discloses the linear motor.

The invention discloses an axial plunger buoyancy pump, which comprises a drive mechanism and a ball screw driven by it, and is characterized in that the drive mechanism drives a sleeve to rotate, and the sleeve is sleeved on the ball screw The two are fixed on the nut, the front end of the sleeve is supported by a thrust ball bearing, the rear end of the sleeve is supported by an angular contact ball bearing, and the middle part of the sleeve is supported by a deep groove ball bearing. The contact ball bearing, the deep groove ball bearing and the thrust ball bearing are all installed in the bearing housing; the front end of the screw of the ball screw is fixed with a plunger, and the plunger is sealed and installed in the plunger cylinder. An end cover is fixedly connected to the front end of the plunger cylinder, and an outer oil bag is fixedly connected to the front end of the end cover, and the outer oil bag, the end cover, the plunger cylinder and the plunger constitute a A sealed cavity, hydraulic oil is injected into the sealed cavity, and the rear end of the plunger cylinder is fixedly connected with the front end of the bearing seat. The invention has large pressure bearing capacity and high working efficiency.

The inertial piezoelectric motor, control method and scanning probe microscope of the present invention include a driving piezoelectric body, a slide bar, and a spring sheet, and are characterized in that they also include an auxiliary piezoelectric body, and the spring sheet connects the two sides of the slide bar. The end and the deformed two ends of the auxiliary piezoelectric body are elastically pressed together, and the auxiliary piezoelectric body or slide bar is fixed to one end of the deformed two ends of the driving piezoelectric body. When the motor is at rest, the gripping force on the slide bar is a large static friction force, the motor has strong anti-interference ability and high stability; The friction resistance decreases, and at this time, a large part of the inertial force generated by the rapid deformation of the driving piezoelectric body is transferred to the output thrust, and the motor steps powerfully. The present invention retains the advantages of simple structure, high precision, large working temperature range, and low processing precision requirements of the inertial piezoelectric motor, but solves its shortcomings of low rigidity, low compactness, and small output thrust, and is suitable for low temperature, ultrahigh Work under extreme conditions such as vacuum and strong magnetic field.