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

The invention provides a damper with energy recovery, comprising sleeve, piston, magnet and coil. There are two said magnets, which are fixed on the inner wall of sleeve respectively and the N pole of one magnet is opposite to the S pole of the other magnet. Said piston is set in the magnetic field formed by magnet in the sleeve. Said coil is round the outer of piston evenly. The invention also provides a vehicle suspension system with energy recovery, comprising damper unit, control cell and battery. Said damper unit comprises multiple dampers with energy recovery provided in the invention. The damper with energy recovery provided in the invention can realize the generation of energy recovery voltage by the principle of DC line generator so as to transform the mechanical vibration energy into electrical energy. The vehicle suspension system with energy recovery provided in the invention can realize adaptive control to damper and the control is relatively simple. The energy usage is improved.

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 cylindrical electromagnetic damper which comprises a centre shaft, wherein n groups of annular permanent magnet stacks with opposite same polarities are sequentially arranged along an axial direction on the outer wall of the centre shaft; n is an integer more than or equal to 2; ferromagnetic gaskets are arranged among the annular permanent magnet stacks; the two ends of the annular permanent magnet stacks along the axial direction of the centre shaft are locked on the centre shaft through a first lock nut and a second lock nut; outer thin wall cylinders are arranged outside the annular permanent magnet stacks, and a gap a gap is arranged between the outer thin wall cylinders and the annular permanent magnet stacks, and a first cover body and a second cover body are fixed on the two ends of the outer thin wall cylinders and in the radical direction of the outer wall of the centre shaft. Preferably, inner thin wall cylinders are arranged between the annular permanent magnet stacks and the outer thin wall cylinders, wherein the inner thin wall cylinders are fixed with the two ends of the inner thin wall cylinders and the center shaft; a plurality of lug bosses at equal intervals are arranged on the outer walls of the inner thin wall cylinders in the axial direction, and a magnetic coil is wound among the lug bosses. By adopting the structure of the cylindrical electromagnetic damper disclosed by the invention, higher electromechanical coupling characteristics as well as vibration isolating and buffering characteristics are provided, and the advantages of simple structure, large operation force, convenience for use, low cost and wide application range are achieved.

The invention relates to the technical field of shock absorbers, in particular to a piston mechanism and a hydraulic shock absorber. The piston mechanism comprises a piston rod, an electromagnetic valve assembly, a sliding valve and a rebuilt valve system, the piston rod is inserted into a working cylinder of the hydraulic shock absorber, the two ends of the electromagnetic valve assembly are connected with the piston rod and the rebuilt valve system respectively, the rebuilt valve system divides the working cylinder into a rod cavity and a rodless cavity, the sliding valve is located in a containing cavity formed by the rebuilt valve system and the electromagnetic valve assembly and divides the containing cavity into a first cavity and a second cavity, when the electromagnetic valve assembly is electrified, a first valve port and a second valve port of the electromagnetic valve assembly communicate, so that the first cavity communicates with the rod cavity through the electromagnetic valve assembly, a second through hole used for communicating the second cavity with the rod cavity is formed in the side wall of the second cavity, and the slide valve can shield the second through hole. The pressure of the first cavity is adjusted by adjusting the opening degree of the electromagnetic valve assembly so that the opening degree of the sliding valve can be adjusted, and then the damping force generated when oil passes through the rebuilt valve system can be adjusted.

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 provides a turbine damper used for blocking drones, belonging to the technical field of drone blocking, comprising: a turbine damper body; a brake pulley, which is connected to the turbine damper body and used for winding the brake strip; , set on the brake pulley, used to pull out one end of the brake belt towards the outside of the brake pulley, and by pulling the brake belt in or out from the pull-out slot, to adjust the brake belt that can be placed on the brake pulley. Length; by adjusting the length of the brake belt on the brake pulley, the winding radius on the brake pulley is changed, and the damping force on the brake belt can be adjusted under different working conditions, so that the turbine damper can be applied to different working conditions. The blocking of drones; when the brake belt is wound and pulled out, the pull-out seam plays a fixed role to prevent slippage between the brake belt and the brake pulley; in special cases, the excess brake belt can be drawn in again through the pull-out seam Avoid the danger of deadlifting the drone.

The invention provides an impeller washing machine and an adjustable damping suspender thereof. The adjustable damping suspender comprises a suspender part and a sleeve, a first magnetic component and a second magnetic component, wherein a top installing base is arranged at the top end so that the suspender part can be suspended on a suspending base at the top of a shell of the impeller washing machine, the bottom end of the suspender part is sleeved with the suspender part in a sliding mode, the first magnetic component is arranged on the suspender part, the second magnetic component is arranged on the sleeve, and the first magnetic component and the second magnetic component are arranged at an interval so that mutual magnetic force between the first magnetic component and the second magnetic component can change along with relative motion displacement between the sleeve and the suspender part in the axial direction. According to the adjustable damping suspender, action force corresponding to the distance between the first magnetic component and the second magnetic component is exerted on the first magnetic component and the second magnetic component according to the relative motion displacement between the sleeve and the suspender part in the axial direction to adjust damping force of the adjustable damping suspender.

The invention provides an underwater energy dissipation and seismic mitigation device with double umbrella surfaces symmetrical in the horizontal direction, and belongs to the technical field of structural vibration control. The underwater energy dissipation and seismic mitigation device is mainly applied to vibration control of an ocean platform. The underwater energy dissipation and seismic mitigation device comprises a piston rod, a damping cylinder body, a cover plate, a piston, a damping medium, a hinge device, a strut fixing device, a strut and a square blade plate. The energy dissipation and seismic mitigation device is provided with a plurality of energy dissipation systems, when an external structure connected with the energy dissipation and seismic mitigation device vibrates horizontally, the damping cylinder body is fixed, so that when the piston rod moves, the strut fixing device is driven to move, so that the strut is driven to move, the square blade plate is driven by thestrut to slide in water, and certain damping force is provided through counter-acting force provided by the water. In addition, the external structure vibrates to drive the piston rod of the device to axially move, so that the piston is driven to slide in the cylinder body, and viscous damping force is generated. The underwater energy dissipation and seismic mitigation device has good underwaterenergy dissipation capacity, and is flexible and efficient.

The invention relates to a clamping device having mechanical damping for a traction engine drive, having a fixed, bowl-shaped base part (6) and a clamping roller carrier (1) having at least one clamping roller (2) and rotatably supported by a sliding bearing (4) on a centrally disposed bearing spindle (5) by means of a hub-shaped bearing part (3), wherein the clamping roller carrier (1) is pretensioned against the base part (6) by means of a torsional spring (9) disposed in the ring space (8) formed between the inner contour of the wall (7) of the bowl-shaped base part (6) and the hub-shaped bearing part (3) of the clamping roller carrier (1) and concentrically encompassing the bearing part (3). Furthermore, according to the invention, the torsional spring (9) in said clamping device is designed as a tabless spring on at least one end thereof, and supports itself by means of the at least one tabless spring end on a first frictional element (11) in the form of a brake shoe, and by means of the other spring end on a bowl-shaped base part (6) of the clamping device, wherein the first frictional element (11) is pivotally supported on the clamping roller carrier (1) by means of a lever arm (12) extending in turn through a cutout (13) in the wall (7) of the base part (6) and is pressed by the spring force by means of the torsional spring (9) against the inner contour of the wall (7) of the bowl-shaped base part (6).

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.

The invention discloses an energy recovery damping stepper in the technical field of fitness equipment and its use method. A housing with an accommodating cavity is rotatably connected, a rack is rotatably connected below the end of the foot pedal facing the rear, the rack is slidably connected in the housing, and a connecting shaft is rotatably connected to the housing below the rack. and the connecting shaft two, the connecting shaft one is connected with the boss gear one and the boss gear two arranged at intervals in the axial direction, the connecting shaft two is connected with the boss gear three, and the boss gear two and the boss gear three mesh , Boss gear 1 and boss gear 3 mesh with the rack respectively, boss gear 1 is connected to connecting shaft 1 via one-way bearing 1, boss gear 2 is connected to connecting shaft 1 via one-way bearing 2, and boss gear 3 is connected to connecting shaft 1 via one-way bearing 1. The one-way bearing three is connected with the connecting shaft two; the invention can reduce energy loss.

The application relates to a shock absorber with variable damping according to the strength of the road surface, belonging to the technical field of automobile shock absorbers, including: a working cylinder with a piston and a piston rod inside, and the piston divides the working cylinder into an upper chamber and a lower chamber One end of the piston rod is connected with the piston and drives the piston to reciprocate in the working cylinder; the plunger rod moves inside the piston rod, the piston rod is provided with a first channel, and the plunger rod is provided with a second channel, when the plunger When the rod moves to a set position in the piston rod, the upper chamber and the lower chamber communicate through the first passage and the second passage. In the shock absorber of the present application, a plunger rod is added in the piston rod, and the plunger rod moves adaptively in the piston rod according to different road conditions and driving states of the vehicle to adjust the damping force of the shock absorber. The plunger rod of the present application is a passive adjustment element, which can adaptively adjust the damping force of the shock absorber without external control, improves the reliability of the shock absorber, and reduces the manufacturing cost.