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134results about How to "High rigidity" patented technology

Manufacturing method of carbon fiber composite material rectangular hollow pipe for mechanical arm

ActiveCN103587124APrecise porosity controlReduce porosityTubular articlesFiberThermal expansion
The invention provides a manufacturing method of a carbon fiber composite material rectangular hollow pipe for a mechanical arm, and the obtained rectangular hollow pipe. A carbon fiber composite material serves as a raw material and is carbon fiber prepreg; the prepreg comprises one-way and fabric prepregs and the rectangular hollow pipe is manufactured by a mould pressing inflation forming method. According to the manufacturing method of the carbon fiber composite material rectangular hollow pipe, a rectangular thin-walled hollow pipe is manufactured by performing mould pressing inflation combined forming on the carbon fiber prepreg serving as the raw material. Compared with the prior art, the invention has the advantages that the carbon fiber composite material rectangular hollow pipe has high bearing capacity, high rigidity and light weight; during operation, the arm is more stable in action and moves and stops more quickly; the arm can be quickly positioned by the vibration damping characteristic of the carbon fiber composite material; the carbon fiber composite material is applicable to precision equipment due to the zero thermal expansion coefficient; equipment investment is small; a mould is simple to manufacture; production energy consumption is low; production period is short; automatic production is realized.
Owner:HENGSHEN

Spatial redundant drive swinging experiment table with two degrees of freedom

The invention discloses a spatial redundant drive swinging experiment table with two degrees of freedom, which comprises a static platform at the bottom, wherein an upright post is fixed at the center of the static platform; the upright post is connected with a movable platform through a first Hooke joint; two second Hooke joints are arranged at one end below the movable platform in symmetrical positions and are respectively connected with a first drive hydraulic cylinder; the lower end of each first drive hydraulic cylinder is connected with the static platform through a third Hooke joint; the center line of the other end below the movable platform is connected with a second drive hydraulic cylinder through a fourth Hooke joint; the distance between the center of the fourth Hooke joint and the movable platform is equal to the distance between the center of the first Hooke joint and the movable platform; the lower surface of the second drive hydraulic cylinder is connected with the static platform through a fifth Hooke joint; each first drive hydraulic cylinder drives the swinging experiment table to swing transversely and longitudinally; and the second drive hydraulic cylinder cooperates with each first drive hydraulic cylinder to drive the swinging experiment table to swing transversely and longitudinally. By innovation of a mechanism and a drive method, the invention can meet the requirements of heavy load and high accuracy for the swinging experiment table in a ship simulation process and has the advantages of simple mechanism and convenient operation.
Owner:TIANJIN UNIV

All-around multifunctional climbing robot

The invention discloses an all-around multifunctional climbing robot, and belongs to the technical field of automatic control. The all-around multifunctional climbing robot solves the technical problems that in the prior art, the cleaning efficiency is low, the cleaning is incomplete, the cleaning is not adapted to an un-flat wall surface, and accidents easily happen. The all-around multifunctional climbing robot comprises a cleaning mechanism, a front compartment body, a rear compartment body, a steering engine, a plurality of cyclone type vacuum suckers, a turbine, a steering mechanism, a drive system and a caterpillar band mechanism, wherein the turbine is fixedly connected in the front compartment body; the steering engine is fixedly connected with the front compartment body and the rear compartment body respectively; the cleaning mechanism comprises a watering mechanism and a cleaning plate which are connected with the front compartment body and the rear compartment body respectively; the caterpillar band mechanism is connected with the front compartment body and the rear compartment body respectively; the cyclone type vacuum suckers are uniformly distributed on the front compartment body and the rear compartment body; each cyclone type vacuum sucker is in spherical hinge connection with the front compartment body or the rear compartment body; the steering mechanism is distributed in the front compartment body; the drive system is distributed in the front compartment body and the rear compartment body; the turbine is connected with each cyclone type vacuum sucker through a pipeline, and used for providing air pressure to each cyclone type vacuum sucker.
Owner:CHANGCHUN UNIV OF SCI & TECH

Single-piston-rod damper

ActiveCN106641084ATo achieve the effect of anti-shock and vibration reductionLarge damping forceSpringsLiquid based dampersSnubberCylinder block
The invention discloses a single-piston-rod damper and belongs to the technical field of structural vibration control devices. The single-piston-rod damper comprises a cylinder which is divided into a working chamber and a compensation chamber, the working chamber and the compensation chamber are separated from each other through a floating piston which is sealed together with the cylinder, and the working chamber is filled with shear thickening fluid (STF); one end, with the tip being connected with a working piston, of the piston rod is arranged in the working chamber in the cylinder, and the other end of the piston rod is arranged outside the cylinder and connected with an upper connecting part; and an elastic part is arranged in the compensation chamber, one end of the elastic part is connected with the floating piston, and the other end of the elastic part is connected to a rubber piston arranged at the end of the cylinder. When the shearing rate is high and the instantaneous vibration velocity in the working chamber is high, shear thickening of the STF occurs to generate damping force, so that the anti-impact vibration-reduction effect of engineering structures is achieved; and when the shearing rate is low and the instantaneous vibration velocity in the working chamber is low, the elastic part in the compensation chamber elastically compensates for the initial rigidity of the damper, so that vibration reduction and energy dissipation of the engineering structures are achieved. The single-piston-rod damper is provided with the elastic compensation chamber to provide appropriate compensation rigidity, and the anti-impact vibration-reduction effect of the damper is achieved.
Owner:SHENYANG JIANZHU UNIVERSITY
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