434results about How to "Good shock absorption" patented technology

The invention discloses an environmental protection restoration device for municipal landscaping soil, which comprises a processing box, the processing box is a cylindrical body, a feeding pipe is arranged at the upper left end of the processing box, a feeding hopper is arranged at the upper end of the feeding pipe, and a feeding hopper is arranged at the upper end of the feeding pipe. There is a crushing roller in the bucket, a crushing motor is fixed in the middle of the upper end of the processing box, a crushing shaft is set at the output end of the crushing motor, movable crushing knives are arranged symmetrically on both sides of the crushing shaft, and several fixed crushing knives are arranged in an array inside the processing box. The knives, the fixed pulverizing knives and the movable pulverizing knives are distributed at cross intervals. The structure of the invention is simple and reasonable, the shock absorption effect is good, and it is easy to carry. The size of the soil particles when mixed with the remediation fluid helps to ensure the remediation effect of the soil, and the unqualified soil will enter the collection box, and then be sent back by the lifting cylinder, so as to realize the circular crushing of the soil, which has strong practicability.

The invention discloses an anti-shock damping safety seat. The both sides at the bottom of a seat main body are connected with a supporting plate through damping rods; the back surface of the seat main body is in sliding connection with a back plate through a damping connecting piece; the damping connecting piece comprises a connecting block, a damping spring group, a silica gel layer and a sliding block; one side of the connecting block is fixedly connected with the back surface of the seat main body, while the other side of the connecting block is connected with the silica gel layer through the damping spring group; one side of the silica gel layer is connected with the sliding block; a sliding chute in fit with the sliding block is formed in the back plate; a fixing base is coated with a first anti-collision bag; the first anti-collision bag is filled with a buffer material; a buffer bag is arranged in the fixing base and filled with a buffer gas generating material; second anti-collision bags are arranged on the back surface and the bottom surface of the seat main body and are filled with an energy absorbing material; arc-shaped rubber layers are arranged on the outer sides of the second anti-collision bags. The anti-shock damping safety seat, disclosed by the invention, is better in shock resistance, good in buffering and damping effect, capable of automatically recovering within a certain range, and good for protecting human body.

The invention relates to the technical field of power equipment, and discloses an industrial boiler with a shock absorbing function, comprising a boiler body, a driver is arranged on one side of the boiler body, the bottom of the boiler body is fixedly connected to the top of a support frame, The bottom of the support frame is fixedly connected to the top of the extruding plate, the bottom of the extruding plate is fixedly connected to the top end of the first shock absorbing spring, and the other end of the first shock absorbing spring is connected to the bottom of the shock absorbing groove. The connection is fixed, the shock absorbing groove is provided on the upper surface of the support seat, and the support seat is provided with an empty groove on the upper surface of one side of the shock absorbing groove. The industrial boiler with shock-absorbing function, through the setting of empty slots, sliding rods, sliding sleeves, swing rods, movable shafts, fixed blocks and second shock-absorbing springs, the industrial boiler can better absorb shocks when it is in use. It solves the problem that the existing industrial boilers do not have the shock absorption function, and avoids the problem that the parts on the boiler will become loose under long-term shaking.

The invention discloses a deformed caterpillar robot which comprises a robot stand and a robot body, wherein robot body is installed on the robot stand; both sides of the robot stand are respectively provided with a set of deformed caterpillar running mechanism; each deformed caterpillar running mechanism comprises a traveling drive shaft, a caterpillar deformed drive shaft, a caterpillar and a deformed oscillating bar mechanism; each traveling drive shaft and each caterpillar deformed drive shaft are arranged on the robot stand in parallel; one end of each deformed oscillating bar mechanism is fixedly connected with each caterpillar deformed drive shaft, and the other end is supported on each traveling drive shaft by a bearing; a drive caterpillar wheel is installed on each traveling drive shaft; driven caterpillar wheels are both arranged on each caterpillar deformed drive shaft and each deformed oscillating bar mechanisms; and each drive caterpillar wheel and all driven caterpillar wheels are meshed with each caterpillar. The deformed caterpillar robot has steady running, high obstacle crossing and climbing capability, simple structure, stable working and reliable control.

The invention provides a compressor base, and relates to the field of compressors. The compressor base comprises a supporting plate, the top of the supporting plate is fixedly connected with the bottom of a compressor body, shock absorbers are fixedly installed at the four corners of the bottom of the supporting plate, holes are formed inside the shock absorbers, and pressing blocks are arranged inside the holes. According to the compressor base, a first spring, the pressing blocks, a pressing rod, hydraulic oil, a piston, a buffer rod, a guide rod, a second spring and a third spring are arranged, and the surface of the guide rod is sleeved with the second spring and the third spring, so that the supporting plate moves under the effect of the pressing rod and the pressing blocks, the effect of the buffer rod and the piston and the effect of the second spring and the third spring, well buffering and damping on the compressor body are achieved, the compressor body is not likely to loosen, noise increase cannot be caused, the working performance of the compressor body is not influenced.

The invention discloses a light-curable adhesive with shock absorption property, which is characterized by comprising the following raw materials based on proportioning by weight: 25-70% of polybutadiene-based polyurethane modified polyacrylate oligomer, 25-70% of acrylic reactive diluent, 3-7% of light triggers and 0-10% of addition agents. The light-curable adhesive can improve the shock absorption properties of common light-curable adhesives, ensures that cured materials have excellent flexibility, is especially suitable for manufacturing high-quality electroacoustic components like buzzers, alarms, speakers, small speakers, micro speakers, receivers, microphones and the like, ensures that the electroacoustic products have good response curves under the conditions of high power and flat frequency so as to give out high-quality chord rings, and gives attentions to the requirements of modern multimedia products on tonal quality, frequency and size.

The invention provides an SMA spring-STF viscous damper which comprises a first connecting component, a piston rod, a left end cover, a first damping cavity, a damping cylinder, a piston, a second damping cavity, two SMA springs, a right end cover and a second connecting component, wherein the left end cover is arranged at one end of the damping cylinder; the right end cover is arranged at the other end of the damping cylinder; the interior of the damping cylinder is divided by the piston into the first damping cavity and the second damping cavity; the SMA springs which sleeve the piston rod are correspondingly arranged in the first damping cavity and the second damping cavity; the first damping cavity and the second damping cavity are filled with an STF shearing thickener; when the pistonmoves towards one side, the SMA spring on one side is compressed, and the SMA spring on the other side is restored towards the trend of the original length; and due to the different expansion and contraction degrees of the SMA springs on both sides, the resistance difference is produced, and the damping force is provided for the viscous damper. The SMA spring-STF viscous damper provided by the invention has the effects of improving the energy consumption under low-frequency loads and causing limiting resistance to the structural excessive displacement; furthermore, the self-resetting effect can be achieved after unloading; and the SMA spring-STF viscous damper has the advantages that the structure is simple and the space is saved.

The invention provides a suspension type sports wood floor system and a construction method thereof. The system comprises a levelling floor mat, a bottom keel, a shock pad, an upper keel, a subfloor, a sound-muffling and moisture-proof isolation layer and a surface floor. The levelling floor mat is arranged under the bottom keel, and is paved on the ground. The upper keel is vertically placed on the upper end of the bottom keel, the shock pad is arranged at the junction portion of the upper keel and the bottom keel and the three parts are fixedly connected, and the subfloor is fixedly arranged on the upper keel. The sound-muffling and moisture-proof isolation layer is paved on the subfloor. The surface floor is positioned on the sound-muffling and moisture-proof isolation layer and fixed on the subfloor. The construction method comprises the steps of paving and levelling the bottom keel, amounting the shock pad, the upper keel, the subfloor, the sound-muffling and moisture-proof isolation layer, the surface floor and the like. According to suspension type sports wood floor system and a construction method thereof, the floor system is good in the performances of sports, stability, moisture-proof and the like, small in deformation, long in service life and free of abnormal sound during use; the construction method is simple, and saves work-period.

Disclosed herein is footwear. The footwear includes a midsole, a shock absorbing means, and an outsole. The midsole has on an upper surface thereof an air passage. At least one insertion recess is provided in a lower surface of the midsole and communicates with the air passage. The shock absorbing means is made of an elastic material and movable up and down by flow of air present in the shock absorbing means. The upper end of the shock absorbing means is opened and secured to the insertion recess of the midsole, and the lower end of the shock absorbing means is closed and protrudes downwards. The outsole functions to secure the shock absorbing means to the midsole. The present invention provides footwear having a shock absorbing means having a simple structure and a superior shock absorbing function, thus having high durability.

The invention discloses a metal pipe processing punch with a damping function. The metal pipe processing punch comprises a base; supporting plates are arranged at the left side and the right side of the top of the base; the top of the supporting plate at the left side is fixedly connected with the bottom of a punching device; opposite surfaces of the supporting plates are sequentially equipped with first slide rails and fixed blocks from top to bottom; upper and lower slide blocks are connected in the first slide rails in a sliding mode; sides, away from the first slide rails, of the upper and lower slide blocks are fixedly connected with the end part of a storage plate and the end part of a buffer plate separately; and a damping device is arranged between the storage plate and the buffer plate. By improving the metal pipe processing punch and enabling the supporting plates, the first slide rails and the slide blocks to match for use, the storage plates are buffered under action of force; and damping sponge, a first plate block, a second plate block and a damping spring are arranged, so that damping is further carried out during metal pipe processing punching, and therefore, damping effect is further achieved.

The invention discloses a stall fruit selling vehicle with a damping function. The stall fruit selling vehicle comprises first sliding devices. A damping device is fixedly connected to the top end of each first sliding device and comprises a shell. A telescopic rod is arranged in each shell. The surface of each telescopic rod is sleeved with a spring. The top end of each telescopic rod is fixedly connected with a first fixing rod. The top of each first fixing rod is fixedly connected with a sliding board. A storage basket is fixedly connected to the top ends of the sliding boards. One end of each first fixing rod is fixedly connected with a second sliding device. The end, away from the first fixing rod, of each second sliding device is movably connected to the inner wall of the corresponding shell. By the adoption of the stall fruit selling vehicle with the damping function, through the common effect of the springs and the telescopic rods, vibration is eliminated, so that the selling vehicle walks smoothly, fruits in the storage basket are not impacted and are perfect without damage, and therefore a seller does not need to worry about the situation that the sale volume of the fruits is affected by collisions among the fruits.

A hydraulic unit support structure includes a bracket (40) having a slot (50) and seat surfaces formed around the slot, and a shock-absorbing member (70) attached to the hydraulic unit (10). The shock-absorbing member (70) is fitted into the slot (50) of the bracket so that the hydraulic unit is supported on the bracket by the shock-absorbing member. The shock-absorbing member has a small-diameter portion (74) inserted into the slot of the bracket and large-diameter portions (76, 78) making contact with the seat surfaces of the bracket around the slot. The slot of the bracket has an insertion-fit region (52) formed at one end of the slot in the long-axis direction and a reduced width region formed at a position spaced apart from the one end in the long-axis direction by a distance substantially equal to the diameter of the small-diameter portion.

The invention belongs to the technical field of floor, in particular to a novel composite floor, a die and a processing method thereof. The substrate of the composite floor is a plastic-wooden plate, the surface layer of the composite floor is a solid wood plate, and an elastic layer is arranged between the substrate and the surface layer. When the composite floor is processed, raw materials such as PVC resin and so on are mixed and extruded to obtain a PVC plastic-wooden plate; the PVC plastic-wooden plate taken as the substrate and the solid wood plate taken as the surface layer are placed into the die respectively, and polyurethane foam materials are injected to a space enclosed by the solid wood plate, the PVC plastic-wooden plate and the die through a passage on a base of the die, and is foamed; and the composite floor is pressed by a press machine after the polyurethane foam materials are foamed fully. The invention has simple processing and manufacturing, high production efficiency and low production cost; and the obtained composite floor is safe, environment-friendly, moistureproof, waterproof and mothproof, has soft and comfortable foot feeling, good temperature insulating effect and high service performance, and has good effect of vibration reduction and sound insulation because the polyurethane foam materials play a role of vibration reduction in the middle layer.

The invention discloses a diesel generator with a vibration reducing function. The diesel generator comprises a support frame; the inner bottom wall of the support frame is fixedly connected with a support block; an accommodating cavity is formed in the inner top wall of the support block; the inner bottom wall of the accommodating cavity is fixedly connected with first vibration reducing springs arranged at equal intervals; two symmetric accommodating tanks are formed in the inner side wall of the accommodating cavity; second vibration reducing springs are fixedly connected to the inner bottom walls of all the accommodating tanks; clamping grooves are respectively formed in the inner side walls of all the accommodating tanks; a movable plate is placed in the accommodating cavity, and two ends of the movable plate are respectively clamped in the two accommodating tanks; and the top ends of each first vibration reducing spring and each second vibration reducing spring are both fixedly connected with the bottom of the movable plate. The diesel generator with the vibration reducing function can effectively and slowly release up-down vibration force and left-right vibration force generated during working, is excellent in vibration reducing function, effectively prevents sliding and tilting, and is high in safety coefficient.

The invention discloses an adjustable damping seat. The adjustable damping seat comprises a cover plate and a soleplate, wherein a damping component is arranged between the cover plate and the soleplate and comprises a pair of shear type connecting rod mechanisms which are symmetrically arranged; a first connecting rod and a second connecting rod of the shear type connecting rod mechanisms are hinged in the middle; corresponding ends of the first connecting rod and the second connecting rod are rotationally arranged on the lower surface of the cover plate and the upper surface of the soleplate through a first connecting shaft and a second connecting shaft respectively; corresponding other ends of the first connecting rod and the second connecting rod are movably arranged on the upper surface of the soleplate and the lower surface of the cover plate respectively; the soleplate in the middle of the second connecting shaft is provided with a propulsion device; the other end of the propulsion device is connected with a spring expansion device; and the lower surface of the cover plate is also provided with an adjusting device capable of driving the shear type connecting rod mechanisms to rotate around the middle of the adjusting device to adjust a height between the cover plate and the soleplate. The problems of troublesome height adjustment and poor damping effect, driving comfort of a driver and fatigue resistance existing in a currently used seat are solved.

The invention belongs to the technical field of epoxy resin, and especially relates to a high-performance epoxy resin and a preparation method thereof. The high-performance epoxy resin comprises a curing agent and is prepared from the following components in parts by weight: 50-80 parts of an epoxy resin polymer, 1-5 parts of a diluent, 1-5 parts of epoxy polyhedral oligomeric silsesquioxane, 1-5parts of a flame retardant, 30-60 parts of filler and 0.1-2 parts of an auxiliary agent, the curing agent is prepared from the following components in parts by weight: 3-12 parts of amino polyhedral oligomeric silsesquioxane, 0-5 parts of curing accelerator and 6-50 parts of amino curing agent. The epoxy resin provided by the invention has high mechanical strength, heat resistance and flame retardance after being cured.

The invention discloses a hanging structure of a clay plate curtain wall, comprising a hanging piece mounted on a transversal keel of a curtain wall. A concave notch for fastening a clay plate is arranged at the front end of the hanging piece and internally provided with an elastic fastener to top-press the clay plate, the mounting stability of the clay plate is improved, the clay plate can not beloosened even if being impacted by external force or the hanging piece is lightly deformed; and meanwhile, the body structure of the hanging piece is improved by arranging an arc convex structure onthe hanging piece to enhance the hanging strength of the hanging structure and prolong the service life.

The invention discloses a robot damping device good in damping effect. The robot damping device comprises a bottom plate. Four first sliding grooves are formed in the upper surface of the bottom plate, and located in the four corner positions of the upper surface of the bottom plate correspondingly. The first sliding grooves are internally in sliding connection with first sliding blocks. The leftside faces of the first sliding blocks are fixedly connected with the left side faces of the inner walls of the first sliding grooves through elastic devices. According to the robot damping device good in damping effect, through the arrangement of the elastic devices, when a robot vibrates, the robot moves downwards to drive a connecting plate to move downwards, the elastic force of the four firstsprings can relieve downward impact force of the connecting plate at the time, and accordingly vibration reducing is conducted on the robot. Meanwhile, the connecting plate moves downwards, and second springs are downwards compressed through fixing plates; and under the action of the second springs, the second springs can relieve the downward impact force of the connecting plate, and accordinglyrobot damage due to vibration is further relieved.

The invention discloses a power device having a damping function. The power device having the damping function comprises a base and a device body. The base is located below the device body. The top of the base is provided with a sliding groove. The top of the base is provided with two symmetrical fixed rods. The tops of the two fixed rods are each provided with a protective cap. A buffer board is arranged above the base. The bottom of the buffer board is fixedly connected with two symmetrical supporting legs. The other end of each supporting leg is provided with a rolling wheel matched with the sliding groove. The two rolling wheels are both arranged in the sliding groove. One side face of each supporting leg is fixedly connected with a first spring. The power device having the damping function has more variable damping functions, effective guarantees the stability of a machine, effectively avoids wear of the machine and achieves a good damping effect, normal use of the device is guaranteed, and the power device having the damping function is high in safety performance and longer in service life.

The invention discloses a drill bit for oil and gas field investigation, which comprises a first casing, a first cavity is arranged inside the first casing, and slide grooves are arranged on opposite side walls of the first cavity, so that The chute communicates with the first cavity, the chute is provided with a first sliding rod, and the two ends of the first sliding rod are fixedly connected with the opposite side walls in the chute, and the upper sleeve of the first sliding rod Two clamping blocks are connected, both ends of the two clamping blocks pass through the hollow groove, two rotating shafts are arranged in the first cavity, and the opposite side walls in the first cavity are provided with There is a groove corresponding to the rotating shaft, and the two ends of the rotating shaft are respectively slidably connected with the two grooves, and a first rotating rod and a second rotating rod are rotationally connected on the two rotating shafts, and the first rotating rod and the second rotating rod are connected in rotation. One end of the second rotating rod is provided with a limit block. The drilling bit for oil and gas field exploration has good shock absorption effect, simple replacement operation, adjustable length, and can meet the investigation work of different depths.

The invention discloses a building piling machine. The building piling machine comprises two first support plates. The upper ends of the two first support plates are each provided with two support rods, wherein every two support rods are symmetrical in the front-back direction and are fixedly connected. A same annular frame is fixedly connected among the four support rods through connecting rods.Two symmetrical arc-shaped clamping plates are fixedly connected to the inner side of the annular frame through multiple springs. Multiple limiting rods are fixedly and uniformly connected to the side, close to the annular frame, of each arc-shaped clamping plate. The multiple limiting rods at each side penetrate the surface of the annular frame through through holes formed in the surface of the annular frame and are fixedly connected with the corresponding arc-shaped clamping plate. According to the building piling machine, a pile is hammered into the ground through the impact force generatedby the gravity of a pile hammer; labor force is saved; a pile body does not need to be held by hands, and piling can be achieved; labor efficiency is improved; and in addition, the problem that accidents are caused in the piling process that the pile body is held manually, so that people are injured is avoided.

The invention provides a hydraulic wheel retracting device for an amphibious vehicle. The hydraulic wheel retracting device comprises a frame, a steering section mounted in the middle of a wheel, and a driving oil cylinder. A piston rod of the driving oil cylinder is connected with the lower part of the steering section through a lower spherical hinge; the top of the front end of the cylinder body of the driving oil cylinder is fixedly connected with the middle part of a supporting rod; the front end and the back end of the supporting rod are respectively fixedly connected with the outer end of a pull rod; two pull rods are arranged on left and right sides; the inner ends of the two pull rods are respectively mounted on the frame by using rotary pin shafts; the two rotary pin shafts and a rotating shaft are concentrically arranged; the upper part of the steering section is connected with the outer end of a wheel supporting frame through an upper spherical hinge; the inner end of the wheel supporting frame is connected with a tension transmission casing pipe in clearance fit; and the tension transmission casing pipe is connected with the frame by more than one bearing base. The hydraulic wheel retracting device for the amphibious vehicle, provided by the invention, has the advantages of simple and compact structure, good buffering and damping effects, safe and reliable properties, low fault rate, low manufacturing price and capability of greatly improving the height of the wheel.

The invention discloses an industrial robot chassis with a good damping effect. The industrial robot chassis comprises a base, the outer wall of the bottom of the base is connected with an electric sleeve through a bolt, and a groove is formed in the outer wall of the bottom of the electric sleeve; the inner wall of the groove is slidably connected with a telescopic rod, and a bottom plate is arranged on the outer wall of the bottom of the telescopic rod; supporting legs are welded to the four corners of the outer wall of the bottom of the base correspondingly, and the outer walls of the bottoms of the supporting legs are connected with universal wheels through fastening bolts; and four vertical columns are arranged on the outer wall of the top of the base, supporting plates are welded tothe outer walls of the tops of the vertical columns, and damping springs are arranged on the outer walls of the tops of the supporting plate. The industrial robot chassis has the great damping function, robots of different sizes can be fixed, the using flexibility of the industrial robot chassis is improved, the situation that operation executing of the robots is affected due to the unstable bottom can be avoided, and the stationarity of a chassis base is improved.

A hydraulic unit support structure includes a bracket (40) having a slot (50) and seat surfaces formed around the slot, and a shock-absorbing member (70) attached to the hydraulic unit (10). The shock-absorbing member (70) is fitted into the slot (50) of the bracket so that the hydraulic unit is supported on the bracket by the shock-absorbing member. The shock-absorbing member has a small-diameter portion (74) inserted into the slot of the bracket and large-diameter portions (76, 78) making contact with the seat surfaces of the bracket around the slot. The slot of the bracket has an insertion-fit region (52) formed at one end of the slot in the long-axis direction and a reduced width region formed at a position spaced apart from the one end in the long-axis direction by a distance substantially equal to the diameter of the small-diameter portion.

The invention discloses an intelligent garden weeding robot. The intelligent garden weeding robot comprises four wheels, four first stepping motors, four first servo motors, four first telescopic cylinders, a hinge joint, a hinging seat, four first electric cylinders, a first bottom plate, a second bottom plate, a rotating frame, four mechanical arms, four mechanical clamps, a first gear, a second servo motor, a cone barrel, a crushing assembly, a feeding barrel, blades and a second stepping motor. The weeding robot has the advantages that the first bottom plate and the second bottom plate are connected through swivels and the electric cylinders so that the balance of a machine body can be constantly guaranteed on ramps, low-lying areas and other severe geographical environments, and a good damping effect is achieved to enable the weeding robot to walk freely in various geographical environments; the four independent mechanical arms and mechanical clamps are adopted for weeding so that the efficiency is high, the degree of freedom is high, and a good weeding effect can be achieved for the weeds which are relatively short and relatively tall; and the weeds are crushed and blown out by the crushing assembly, and the crushed weeds subjected to microbial decomposition become waste materials, so that the weeding robot is more energy-saving and environment-friendly.

A disk drive having a remarkably improved shock resistance and conforming to a standard form factor is disclosed. A hard disk drive capable of detachably combined with a PC card is formed by assembling separate component parts including a functional unit 10 including a disk 11, a base plate 32 holding the functional unit 10, a frame bumper 30 disposed in a middle part of the assembly and serving as a shock-absorbing member, a card assembly 20 provided with a connector 22 to be connected to the slot of a PC card, and a top cover 33 covering the functional unit 10 held on the base plate 32. The frame bumper 30 receives lateral shocks that act on the side surfaces of the hard disk drive.

The invention discloses an anti-collision smartphone, comprising a phone body, wherein through holes are formed at four corners of the front surface of the phone body; an air bag is arranged in each through hole; an air generator, a controller, a gravity sensor and a gyroscope are arranged in the phone body; the air bags are connected with the air generator by air pipes; the air generator is connected with the controller via a circuit; and the controller is connected with the gravity sensor and the gyroscope via circuits. In the case of not affecting the appearance of the phone, the smartphone can deal with fall collision from any direction, the screen and frame of the smartphone are protected against damage, the protective air bags are prone to recycle and replace after usage, the economic benefit is good, and the security is high.

The invention discloses a novel inversion constant-current integrated solar LED street lamp control device which comprises a mounting seat, wherein a box body is arranged on the mounting seat; a wiring terminal is arranged on the box body; a circuit board electrically connected with the wiring terminal is arranged in the box body; an inverter driver, a micro processor and a constant-current driving module which are electrically connected in sequence are arranged on the circuit board; an insertion slot is formed in the inner wall of the box body; the circuit board is inserted into the insertion slot; a shock absorption spring is arranged between the inner wall of the insertion slot and the circuit board; a plurality of heat dissipation sheets are arranged on the lower surface of the circuit board; a heat dissipation fan connected with the micro processor is arranged at a position, below the circuit board, in the box body; heat dissipation holes are formed in the box body; ventilating pipes connected with the heat dissipation holes are arranged in the box body; drying agents are arranged in the ventilating pipes. The novel inversion constant-current integrated solar LED street lamp control device has the beneficial effects of good shock absorption and heat dissipation effect and long service life.

The invention provides a torsional vibration isolator, which is used in engine crankshafts and the like, and can effectively solve the problem that crankshaft torsional vibration is transferred to an accessory gear train, thereby improving automotive ride comfort. The torsional vibration isolator comprises a driving disc, a driven disc hub and an elastic damping unit, wherein the elastic damping unit is composed of a circular guide rail and a plurality of elastic components uniformly distributed on the guide rail; a bulge is formed at the middle part of the driving disc; a through hole is formed at the middle part of the bulge, and a bearing is pressed and mounted at the periphery of the bulge; a plurality of shifting yokes are uniformly distributed on the driving disc, and each of the shifting yokes is respectively provided with a first groove at the same side; rib plates are arranged in the driven disc hub, both the number and the positions of the rib plates are corresponding to those of the shifting yokes, and each of the rib plates is respectively provided with a second groove; the first grooves and the second grooves are opposite to each other; the periphery of the bearing ispressed and mounted in the through hole at the center of the driven disc hub, the guide rail of the elastic damping unit is mounted in the first grooves and the second grooves, and the elastic components are distributed between the shifting yokes and the rib plates.

The invention relates to a shock absorption device, and in particular to an electric damping shock absorber. The electric damping shock absorber disclosed by the invention comprises a moving structural member, a static structural member and an elastic component, wherein the elastic component is arranged between the moving structural member and the static structural member; the electromagnetic static member of a linear electric mechanism is arranged on the static structural member, the electromagnetic moving member of the linear electric mechanism is arranged on the moving structural member, and the electromagnetic static member is in electromagnetic fit with the electromagnetic moving member; or the electromagnetic static member of a rotary electric mechanism is arranged on the static structural member, the electromagnetic moving member of the rotary electric mechanism is driven by the moving structural member, and the electromagnetic static member is in electromagnetic fit with the electromagnetic moving member. According to the electric damping shock absorber disclosed by the invention, redundant shock is reduced by virtue of damping generated by the interaction of the electromagnetic static member and the electromagnetic moving member, thus a better shock absorption is achieved; a part of energy in shock can also be recovered in a structure provided with an inductive unclosed coil, thus a great effect is also achieved in the aspect of energy saving.