41results about How to "Adjust the damping force" patented technology

The invention relates to a double-barrel-structure magneto-rheological shock absorber based on a flow mode. The double-barrel-structure magneto-rheological shock absorber comprises an outer cylinder barrel and an inner cylinder barrel which is installed in the outer cylinder barrel, wherein a gap is formed between the outer cylinder barrel and the inner cylinder barrel, the upper end and the lower end of each of the outer cylinder barrel and the inner cylinder barrel are respectively sealed to a base through an end cover, through holes are formed in the circumferential wall of the lower end of the inner cylinder barrel, an inner cavity of the inner cylinder barrel is communicated with the gap between the inner cylinder barrel and the outer cylinder barrel through the through holes, a piston is arranged in the inner cavity of the inner cylinder barrel, the piston is fixedly connected with a piston rod, one end of the piston rod is fixedly connected with the piston, the other end of the piston rod stretches out of the end cover, a through hole which is used for the piston rod to run through is formed in the end cover, the space between the piston and the base in the inner cavity of the inner cylinder barrel is filled with magneto rheological liquid, a magnetic field adjusting device is fixed on the base, and a conducting wire of the magnetic field adjusting device is led out from a leading-out hole formed in the base. By adopting the double-barrel-structure magneto-rheological shock absorber, the working stroke of the shock absorber is increased, the application range of the shock absorber is enlarged, and the dissipation of the working heat of the shock absorber in long time can be facilitated.

The invention discloses a guided warm-up device for physical training, which comprises a bracket, wherein the bracket is in the shape of a gantry, on which there are guide rails, and two stretching assemblies are symmetrically connected under the guide rails; the guide rails Two damper assemblies are arranged symmetrically in the brackets at both ends, and the damper assembly is connected with the tension assembly near one side by a stay rope so that the tension assembly can slide with damping in the guide rail, and the damper assembly The damper assembly can adjust the size of the damping through the expansion and contraction of the servo telescopic rod provided on one side. Compared with the prior art, the present invention uses personnel and there is no reaction force in the stretching process, prevents injuries due to mistakes, hand slipping or loss of force, and can adjust the damping force of pulling the pull cord.

The invention discloses an oscillating type magnetorheological damper which is formed by the means that a damping rod is arranged in a damping pipe, wherein the damping pipe is combined and fixed into a whole by the means that N+1 ring-shaped damping fins and N spacer rings are concentrically overlapped with one another one by one in the plane; each ring-shaped damping fin consists of a ring-shaped electromagnet and magnetorheological elastomers, wherein at least three pairs of magnetic poles of the ring-shaped electromagnet are uniformly distributed at the inner periphery, and the nagnetioreological elastomers with the same thickness are respectively fixed on the end surface of each magnetic pole of the ring-shaped electromagnet; each spacer ring is made from non-magnetic permeability material, the outer diameters of the spacer rings are as the same as those of the ring-shaped damping fins, and the inner diameters of the spacer rings are not less than those of the magnetic poles of the ring-shaped electromagnets; and the damping rod is in the shape of a cylinder which is made from high-magnetic permeability material, and the length of the damping rod is not less than that of the damping pipe.

The invention relates to the technical field of vehicle energy saving and emission reduction, in particular to a hydraulic energy storage damping adjustment semi-active suspension system, which includes a spring arranged between the vehicle body and the wheels, a damping device is arranged between the vehicle body and the wheels, and the damping device It includes the piston rod fixed on the wheel and the piston cylinder fixed on the vehicle body. The piston rod is fixed with a piston that matches the piston rod; the rod chamber and the rodless chamber of the piston cylinder are connected in parallel with vibration-absorbing oil circuit and damping oil. There is a first one-way valve on the vibration-absorbing oil circuit to allow the oil to flow from the rodless chamber to the rod chamber, and a hydraulic motor and a second one-way valve to allow the oil to flow from the rod chamber to the rodless chamber on the damping oil circuit. , The hydraulic motor is connected with a generator, the generator is connected with a load regulating circuit, the load regulating circuit is provided with a load resistance and a resistance regulating device, and the electricity generated by the generator is stored through the battery. The invention realizes the adjustment of the damping force of the suspension, has a simple structure, is convenient to control, is beneficial to realization, and can effectively improve the running comfort of the automobile.

The invention provides a multiform mechanical vibration damper. The multiform mechanical vibration damper comprises a torsional vibration vibration-absorption mounting flange, a four-leg chuck, an upper box body, a sector-shaped piston, a linear vibration vibration-absorption mounting rod and a lower box body, wherein the sector-shaped piston is mounted in the upper box body and the lower box body; the upper box body is fixedly connected with the lower box body; the torsional vibration vibration-absorption mounting flange is mounted on the four-leg chuck; the linear vibration vibration-absorption mounting rod is mounted on the sector-shaped piston by the lower box body; the four-leg chuck is mounted in the sector-shaped piston and penetrates through the linear vibration vibration-absorption mounting rod. The multiform mechanical vibration damper realizes the vibration-absorption effects of two vibration forms including linear vibration and torsional vibration, and has the advantages of simple structure, high energy absorption efficiency, wide application range, strong flexibility, convenience for installation and the like.