35results about How to "Good cushioning and energy absorption" patented technology

The invention relates to a buffer energy absorption device based on magneto-rheological materials. The buffer energy absorption device comprises a double-sleeve structure and a magnet exciting coil used for generating a magnetic field. The double-sleeve structure is composed of an outer sleeve and an inner sleeve. One end of the double-sleeve structure is fixedly connected with a base, and the other end of the double-sleeve structure is fixedly connected with a sealing end cover. The double-sleeve structure is filled with the magneto-rheological materials. A gap is reserved between the outer sleeve and the inner sleeve of the double-sleeve structure and serves as an annular fluid channel. A piston is arranged in an inner cavity of the inner sleeve. A spring is arranged between the piston and the base. The piston and the inner wall of the inner sleeve are in sliding fit. The piston is fixed to a piston rod which extends out of the double-sleeve structure through the sealing end cover. A buffer head is arranged at the extended end of the piston rod. An opening is formed in the end, close to the base, of the inner sleeve to enable the inner cavity of the inner sleeve to be communicated with the annular fluid channel. A communication pipe is arranged at the end, close to the sealing end cover, of the double-sleeve structure to enable the annular fluid channel to be communicated with the inner cavity of the inner sleeve. According to the buffer energy absorption device based on the magneto-rheological materials, the damping force of a buffer device is adjusted in real time according to the magnitude of external impact force, and therefore the optimal buffer energy absorption effect is achieved.

The invention relates to the technical field of composite materials, in particular to a carbon fiber honeycomb structure; comprising a plurality of honeycomb sub-pieces having a continuous semi-hexagonal shape, the plurality of honeycomb sub-pieces are arranged in sequence and coated on overlapping bonding surfaces. The cloth adhesive is fixed and bonded to form a hexagonal honeycomb structure in cross section. The honeycomb parts are made of carbon fiber prepreg with a carbon content of more than 90% through an autoclave process or a molding process; The bonding agent adopts epoxy resin adhesive or adhesive film; compared with the existing honeycomb core material, the comprehensive performance is outstanding, and at the same time, it has light weight, high specific strength, good impact resistance, and obvious buffering and energy-absorbing effect; the present invention At the same time, it also provides a preparation method of the carbon fiber honeycomb structure, which overcomes the disadvantage of complicated preparation procedures of the carbon fiber honeycomb structure in the past.

The invention relates to the field of energy absorption, in particular to a honeycomb structure buffering and energy absorbing device capable of resisting multidirectional impact, which is formed by matching a shell and a multidirectional bearing honeycomb filling structure, the internal multidirectional bearing honeycomb filling structure is formed by linearly arraying novel multidirectional bearing honeycomb cells, and each honeycomb cell is formed by connecting a rectangular thin plate and an arch-like bent thin plate in a crossed distribution and coplanar mode, thereby forming an outer framework, the outer framework and the inner bow-like bent thin plates are connected in a common-edge mode to form the regular triangle inner framework, the coplanar direction bearing capacity of the cell structure is improved, the honeycomb cell structure has certain bearing energy absorption capacity for loads at any angle in multiple directions, the application environment is wider, and the buffering energy absorption effect is better. And the buffering and energy-absorbing requirements under the action of multi-directional uncertain loads are met.

The invention provides an oil pan of an automobile engine, and belongs to the technical field of automobiles. The oil pan solves the technical problem that an existing engine oil pan does not have good buffering or energy absorption effect. The oil pan of the automobile engine comprises a flexible shell connected to the lower end of an engine cylinder body, the upper end of the shell is fixedly connected with the lower end of the engine cylinder body, and a supporting structure capable of supporting the bottom of the shell is further arranged between the bottom of the shell and the engine cylinder body. The oil pan of the automobile engine has the advantages of having good buffering and energy absorption effects while being impacted and the like.

The invention belongs to the technical field of EPS foaming, and particularly relates to a high-strength composite EPS foam heat preservation box. The heat preservation box is obtained by splicing EPS composite boards, and the EPS composite boards are prepared through a two-step method. The method comprises the steps that (1) a layer of tensile fiber net is flatly laid at the bottom of a forming mold, the mold is filled with an EPS foaming raw material, heating foaming forming is conducted, and a semi-finished plate is obtained; (2) the semi-finished plate is placed in another mold, the face, provided with the tensile fiber net, of the semi-finished plate faces downwards, another layer of tensile fiber net is laid on the semi-finished plate, and the mold is filled with an EPS foaming raw material for form the EPS composite boards. According to the high-strength composite EPS foam heat preservation box provided by the invention, the boards are manufactured through twice foaming, the outer-layer foaming material is high in density, hardness and strength, and the tensile fiber nets integrally wrap the two sides of the outer-layer foaming material, so that good impact resistance is realized; and the inner-layer foaming material is low in density and moderate in hardness and strength, and excellent buffering and energy-absorbing effects are realized.

The invention discloses a leg-type combined buffer for a recoverable rocket landing mechanism, and relates to the field of aerospace. The leg-type combined buffer for the recoverable rocket landing mechanism solves the problem that an existing landing buffer mechanism only adopts a metal honeycomb structure as buffer material resulting in relatively low impact energy absorbed per unit volume and non-satisfaction of the requirements of rocket landing recovery. In the leg-type combined buffer for the recoverable rocket landing mechanism, a buffer outer case is of a hollow cylindrical structure;a buffer cavity and a base are sequentially arranged in the buffer outer case from top to bottom; the base is fixed at the bottom of the buffer outer case; the buffer cavity is fixed on the base; thebuffer cavity is of a hollow cylindrical structure; a first piston push rod, a low-density metal honeycomb, a second piston push rod and a high-density metal honeycomb are sequentially arranged in thebuffer cavity from top to bottom; and the stiffness of the low-density metal honeycomb is less than the stiffness of the high-density metal honeycomb. The leg-type combined buffer for the recoverablerocket landing mechanism improves the buffer energy-absorption performance, thereby satisfying the requirements of rocket landing recovery.

The invention relates to a graded metal fragment recovery device for a ballistic test, and belongs to the technical field of ballistic tests. The recycling device comprises a bottom plate, a movable side plate and recycling structure units, the n recycling structure units are arranged in the length direction of the bottom plate with the length direction of the bottom plate as the front-back direction and the width direction of the bottom plate as the left-right direction, and the lower ends of fixed steel plates of the recycling structure units are fixedly connected with the bottom plate. The two movable side plates are symmetrically installed on the left side and the right side of the bottom plate, and the upper ends of the movable side plates are connected with the fixed steel plate through hinges. The layered recovery structure unit composed of the aramid fiber layer, the liquid layer and the PE layer is adopted to effectively intercept the metal fragments, secondary deformation of the metal fragments in the recovery process is avoided, the number of the recovery structure units is adjusted and controlled, recovery of the metal fragments under different speed conditions can be achieved, and the recovery efficiency is improved. And the recovery device is easy to search and recover the metal fragments.

The invention discloses an engine cover inner plate structure. The engine cover inner plate structure comprises an engine cover inner plate body, a rib beam and a protruding structure are arranged onthe engine cover inner plate body, a rib beam installation space is defined by the rib beam and the interior of the protruding structure, and buffering holes used for absorbing energy are formed in the protruding structure. The buffering holes in the inner plate of the engine hood can achieve a good buffering and energy-absorbing effect when the head of a pedestrian collides with the engine hood,and the injury degree of the head of the pedestrian is reduced.

The invention discloses a harvester not going to the field. The harvester comprises a telescopic tube, a fixed disk is installed at the bottom of the telescopic tube, a gear ring is sleeved in the fixed disk, a steering motor is mounted at the top of one end of the fixed disk, the steering motor is connected with a gear, the gear meshes with the gear ring, the bottom of the gear ring is connectedwith a plurality of hydraulic rods, the push rod ends of the hydraulic rods are connected with damping mechanisms, the damping mechanisms are connected with mounting seats, harvesting heads are installed at the bottoms of the mounting seats, conveying mechanisms are installed between the harvesting heads and the telescopic tube, and a grain suction hose is installed in the telescopic tube. The steering motor drives the gear to rotate so as to enable the gear ring to rotate, the gear ring drives the hydraulic rods and the damping mechanisms to drive the mounting seats to rotate, so that the orientation of the harvesting heads is adjusted, a vehicle body can conveniently harvest when moving back and forth, the efficiency is improved, the energy is saved, harvested grains are transported to the telescopic tube through the conveying mechanisms, so that the grain suction hose can suck the grains to a vehicle for storage conveniently, during a harvesting process, the damping mechanisms can have a good buffering and energy absorption effect on the mounting seats, and thus the vibration of the harvesting heads is avoided.

The invention discloses a crushing deformation type rear-end crash seat energy-absorbing structure. An energy-absorbing connecting structure consisting of an energy-absorbing plate, an upper end boltconnecting structure and a lower end bolt connecting structure is taken as a second connecting structure so as to connect the rear end part of an angle adjuster connecting plate and the rear part of acushion side plate, so that, when a rear-end crash occurs for a vehicle using the structure, the impact force of a passenger on a seat backrest can be transferred to the cushion side plate through the upper end bolt connecting structure, the energy-absorbing plate and the lower end bolt connecting structure in sequence by the angle adjuster connecting plate. A concave-convex structure is arrangedon the energy-absorbing plate that a two-force rod structure is formed by the connecting structure, buffering energy absorption of impact force on the automobile seat backrest in the rear-end crash process of a passenger can be realized, and the structure has the advantages that the cushioning energy-absorbing process is extremely stable, the design and optimization difficulty is low, the cushioning energy-absorbing effect is extremely high, the structure is simple and the cost is low.

The invention provides an efficient buffer energy absorption device for automobiles. The efficient buffer energy absorption device comprises a first connecting plate, a second connecting plate and a shell body, wherein the first connecting plate and the second connecting plate are arranged at the two ends of the shell body respectively, a porous aluminum alloy section and a hard rubber section arefilled in the shell body, a group of large hole transverse grooves and a group of small hole transverse grooves are formed in the porous aluminum alloy section, and the large hole transverse groovesand the small hole transverse grooves are sequentially arranged at intervals. The distances between every two adjacent large hole transverse grooves are equal, the distances between every two adjacentsmall hole transverse grooves are equal, and it is ensured that when the efficient buffer energy absorption device is stressed, all the parts are stressed uniformly.

The invention provides an oil pan of an automobile engine, and belongs to the technical field of automobiles. The oil pan solves the technical problem that an existing engine oil pan does not have good buffering or energy absorption effect. The oil pan of the automobile engine comprises a flexible shell connected to the lower end of an engine cylinder body, the upper end of the shell is fixedly connected with the lower end of the engine cylinder body, and a supporting structure capable of supporting the bottom of the shell is further arranged between the bottom of the shell and the engine cylinder body. The oil pan of the automobile engine has the advantages of having good buffering and energy absorption effects while being impacted and the like.

The invention relates to a solid-liquid two-phase energy dissipating fender and a manufacturing method thereof. The solid-liquid two-phase energy dissipating fender comprises a shell and hollow pipes arranged in the shell. The shell is provided with an impact bearing face. The hollow pipes and the shell are integrally formed. Every two adjacent hollow pipes are in face contact. A part of the hollow pipes are hollow, and the other hollow pipes are filled with liquid. The manufacturing method of the solid-liquid two-phase energy dissipating fender comprises the steps that formed pipes are used as pipe molds for manufacturing the hollow pipes; the pipe molds are covered with fiber cloth; then, a VIP technology is adopted, the pipe molds and the fiber cloth form the hollow pipes in an integrated mode, and the hollow pipes and a shell mold are integrally formed. The hollow pipes and the shell are of an integrated structure, a part of the hollow pipes are filled with liquid, and cost is low; during an impact, the liquid can be sprayed by through holes or prestress holes to dissipate energy, energy conversion can be achieved, and the buffering effect and the energy absorbing effect are good; every two adjacent hollow pipes are independent of each other, after a part of the hollow pipes are cracked due to an impact, the remaining hollow pipes can still be used repeatedly.

The invention provides left and right front suspension brackets of automobile engines, relates to the technical field of engine bracket equipment, and solves the problem that during the use of the existing suspension brackets, due to the four-corner independent bearing mode, its load-bearing capacity is reduced, and the load generated by itself is relatively large. Large, so that the energy-absorbing mechanism is always at a lower limit position, causing the energy-absorbing mechanism to lose its energy-absorbing effect, and the suspension bracket often breaks during use, causing the engine to suddenly fall and cause damage, including the upper bracket ; The lower end of the upper bracket is hinged with the lower bracket below through a shock absorbing spring; the upper brackets of the left and right groups are connected to each other through load-bearing links. In the present invention, since the upper end of the reinforced hanging mechanism is horizontally and vertically fixed with a shaft sleeve, it can cooperate with the load-bearing connecting rod to provide a stronger bearing capacity, and has a good buffering and energy-absorbing effect, and the arched lifting arm has a stronger supporting force.

The invention discloses a coupled bionic anti-explosion energy-absorbing board, which comprises multi-layer substrates sequentially arranged at intervals along the thickness direction of the energy-absorbing board, a plurality of energy-absorbing unit cells arranged between every two adjacent layers of substrates, and Filling in the cavity formed between the energy-absorbing unit cell and two adjacent substrates, each energy-absorbing unit cell includes a first contour line and a second contour line, and each energy-absorbing unit cell has In the central plane, the first contour line is arranged symmetrically with respect to the central plane, and the second contour lines are arranged symmetrically on opposite sides of the central plane, and the energy-absorbing unit cell also includes the second contour line and the first contour line respectively connected on both sides The transition curve between the ends of the line, the first contour line satisfies the curve equation y = -0.021x 2 +0.113x+25.31, the second contour line satisfies the curve equation y=‑2.315x 2 +3.722x+6.398. The coupled bionic anti-explosion energy-absorbing plate has a simple structure, and the cross-sectional profile of the energy-absorbing unit cell is similar to the shape of a pine cone, and has a good buffering and energy-absorbing effect, thereby ensuring the safety of the protected vehicle, equipment inside the vehicle and occupants.

The invention provides a gas explosion-proof partition plate for downhole. The gas explosion-proof partition plate comprises an explosion-proof partition plate body and a plurality of sets of unit bodies; each set of unit body comprises a base and a basic micro element structure matched with the base; the basic micro element structures are mounted into U-shaped bases to constitute U-shaped unit bodies, and the basic micro element structures are mounted into corresponding U-shaped structures of H-shaped structures to constitute H-shaped unit bodies; and in the length direction, the H-shaped unit bodies and the U-shaped unit bodies are alternately distributed, the U-shaped unit bodies are located in the middle, and the upper U-shaped unit bodies and the lower U-shaped unit bodies are symmetrically distributed at intervals, the two sides of the U-shaped unit bodies abut against the H-shaped unit bodies through first buffering rods, and the basic micro element structures in the U-shaped unit bodies make contact with the upper inner wall and the lower inner wall of a corresponding explosion-proof cavity. According to the gas explosion-proof partition plate for the downhole, explosion detonation wave is buffered and absorbed, firstly, the explosion detonation wave is blocked and buffered through a protecting plate, then energy is transmitted to foamed concrete, second rubber rods andceramic base structures in the explosion-proof partition plate body and consumed, and the buffering energy-absorbing effect is achieved.

The present invention relates to an automobile variable-section upper side beam with longitudinally segmented filling material and its use method and manufacturing method. For the automobile variable-section upper side beam with longitudinally segmented filling material of the present invention, the upper side beam shell (1 ); filling material; structural glue (2), the filling material is composed of multi-segment energy-absorbing material (3) and rigid structural material (4). For the use method of the present invention, the energy-absorbing material at the front end absorbs energy, the rigid structural material in the middle section maintains the structural strength of the upper longitudinal beam, the energy-absorbing material in the middle section continues to absorb the collision energy, and the rigid structural material in the rear end maintains the structural strength of the upper longitudinal beam. Collision force for blocking. The manufacturing method of the present invention specifically includes the following steps: S1: manufacturing the upper stringer shell; S2: coating structural glue; S3: filling the upper stringer shell with energy-absorbing materials and rigid structural materials. The invention better induces gradual crush deformation of the upper longitudinal beam through the energy-absorbing and rigid structural materials filled inside.

The invention discloses a pipeline geological disaster protection device and an installing and using method thereof. The device comprises a supporting base, a lateral buffering wall, pipeline fixing clamps and a buffering layer. The supporting base comprises a sliding rail structure, a first base, a plurality of pressure springs, a plurality of stable pull rods I, a plurality of stable pull rods II and a second base. The lateral buffering wall comprises an L-shaped steel plate and a plurality of pressure springs. Through the arrangement of the compressible supporting base and the sliding railstructure, the lateral buffering wall and the pipeline fixing clamps on the supporting base, when a pipeline is mostly subjected to inclined impact force from landslide and falling stone, sliding in the horizontal and vertical direction can be achieved within the pipeline deformation extreme range, the supporting base and the lateral buffering wall are used for bearing component force in the horizontal direction and the vertical direction and absorbing energy, good pipeline landslide and falling stone impact preventing effects are achieved, meanwhile, cost is low, arrangement is flexible, andconstruction is convenient.

The invention provides a buffer energy-absorbing material for filling an automobile energy-absorbing box. The buffer energy-absorbing material is prepared from the following raw materials in parts by weight: 100 parts of bisphenol A epoxy resin, 5-25 parts of fly ash hollow microspheres, 1-15 parts of paper pulp lignin fibers, 2-5 parts of a silane coupling agent, 10-50 parts of a curing agent, 1-3 parts of an accelerant, 10-35 parts of a diluent and 3-5 parts of a defoaming agent. The invention further discloses a preparation method of the buffering energy-absorbing material for filling the automobile energy-absorbing box. The buffer energy-absorbing material for filling the automobile energy-absorbing box has the advantages of light weight, good buffer energy-absorbing effect, low manufacturing cost, high and low temperature resistance and good stability, can be used for filling the automobile front-end energy-absorbing box, realizes a better energy-absorbing effect, reduces the weight, reduces the production and later maintenance cost, is simple in preparation method, and is suitable for industrial production. The raw materials are cheap, easy to obtain, environment-friendly and renewable, and the composite material is a novel composite material suitable for large-scale industrial production, has a wide application prospect and can be widely applied to vehicle energy absorption parts.

The invention relates to a buffer energy-absorbing device based on magnetorheological materials, which includes a double-tube structure composed of an outer sleeve and an inner sleeve and an excitation coil for generating a magnetic field. One end of the double-tube structure is fixedly connected to the base, and the other One end is fixedly connected with the sealing end cap, and the double-tube structure is filled with magnetorheological materials. There is a gap between the outer sleeve and the inner sleeve of the double-tube structure as an annular flow channel, and the inner cavity of the inner sleeve is equipped with a piston. , there is a spring between the piston and the base, the piston is slidingly matched with the inner wall of the inner sleeve, the piston is fixed on the piston rod, the piston rod protrudes out of the double-barrel structure through the sealing end cover, the outer end of the piston rod is provided with a buffer head, and the inner The end of the sleeve close to the base is provided with an opening, which communicates with the inner cavity of the inner sleeve and the annular flow channel, and the end of the double-tube structure close to the sealing end cap is provided with a connecting pipe, which communicates the annular flow channel with the inner cavity of the inner sleeve . It adjusts the damping force of the buffer device in real time according to the magnitude of the external impact force to achieve the optimal buffer energy absorption effect.

The invention discloses an elevated railway roadside protection device which comprises a corrugated beam and a reinforced concrete wall installed in a roadbed in an embedded mode, a plurality of standcolumns which extend upwards from the top face of the reinforced concrete wall and are sequentially arranged at intervals are embedded in the reinforced concrete wall, and all the stand columns are connected with the corrugated beam through energy absorption boxes. The elevated railway roadside protection device is good in buffering and energy absorption effect, high in protection performance andcapable of effectively preventing secondary accidents caused by overturning or derailing of a derailed train and greatly reducing the damage degree of the train.

The invention discloses a fast-assembling expressway buffer guardrail, which comprises: a plurality of bases, which are evenly spaced and arranged on both sides of the expressway; a baffle; a plurality of uprights, which are set in one-to-one correspondence with a plurality of bases; a plurality of elastic buffer tubes, which are hollow cylinders with openings at both ends, and a plurality of elastic buffer tubes are sleeved on the plurality of uprights in one-to-one correspondence; and The guardrail board is horizontally hung on the outer wall of multiple elastic buffer tubes on the side facing the road surface of the expressway. The present invention realizes the rapid assembly of highway buffer guardrails through rationally arranged multiple bases, multiple pillars, multiple elastic buffer tubes and guardrail panels, and the structure of multiple elastic buffer tubes and guardrail panels has a good buffering and energy-absorbing effect .

The invention relates to a multi-directional bearing honeycomb structure buffer energy-absorbing device, comprising: a housing and a honeycomb filling structure; the honeycomb filling structure is installed inside the housing and connected to the housing; the honeycomb filling structure is a plurality of honeycomb filling structures An array structure composed of cells; the honeycomb cell includes a hollow regular hexahedron sheet, a hollow cuboid rectangular sheet and two intersecting single-sided sheets; the hollow regular hexahedron sheet constitutes the outer contour of the honeycomb cell, The hollow cuboid rectangular thin plate is embedded in the hollow regular hexahedron thin plate; the two single-sided thin plates are embedded in the hollow rectangular rectangular thin plate in a diagonal form. The present invention has a higher longitudinal bearing capacity, and has a certain load-bearing and energy-absorbing capacity for multi-directional and arbitrary angle loads. Compared with the traditional honeycomb structure, the multi-directional bearing capacity is improved, the applicable environment is wider, and the buffering and energy-absorbing effect is better. .