425results about How to "Play the role of shock absorber" patented technology

The invention provides a spirally driven walking robot in a pipe, which consists of a power-driven device, a walking guide device and a universal joint (8) connecting the power-driven device and the walking guide device; the power-driven device is formed by a motor (1) driving a circular rotor (5); the outer wall of the circular rotor (5) is respectively provided with three groups of symmetrically distributed wheel carriers (2); each group of wheel carrier (2) is provided with two wheels (3), and the rotating axes of the two wheels forms an acute elevation angle with the axes of the rotor (5); the walking guide device consists of three groups of symmetrically distributed guide wheel carriers (12) which are arranged on the outer wall of a cylinder or a cylindrical body (11); each group of guide wheel carrier (12) is provided with two wheels (10), and the rotating axes of the two wheels is vertical to the axes of the cylindrical body (11); and the wheel carriers (2) on the rotor (5) of the power-driven device and the guide wheel carriers (12) on the cylinder or the cylindrical body (11) of the walking guide device are all floating bodies, and certain radial dilation generated by a spring (9) is used to make all wheels on the wheel carriers (2) and the guide wheel carriers (12) always attach to the inner wall of the pipe. The motor drives the walking robot in the pipe to advance or retreat along the axes direction of the pipe.

The invention discloses a medical medicinal material grinding device with noise reduction function, which comprises a base, a piston cylinder, a piston ball, a shear thickening liquid, a grinding box, a driving motor, a runner, a feeding device, a grinding motor, a grinding wheel and Material receiving device, the inside of the piston cylinder is filled with shear thickening liquid; several groups of elastic steel plates are fixedly installed on the left and right sides of the support seat. The upper end of the elastic steel plate is rotated by a bearing to install a pulley, and the pulley is slidably installed inside the slide rail; A feeding device is connected to the lower side of the feeding port. According to the change of the descending speed of the piston ball, the shear thickening fluid can produce different resistances to improve the shock absorption effect of the device when it is working. The two sides move to press the elastic steel plate downward to play the role of shock absorption and buffering. Through the joint action of the above two kinds of shock absorption and buffering, the noise generated during the grinding process can be effectively reduced.

The invention provides a preparation method of a smart impact-resisting material. The preparation method comprises the steps of taking a silicone rubber foam material as a base body and adding a foaming agent, and taking energy-absorption gel as a filler, so as to prepare a damping shielding material with high buffer performance. When the energy-absorption gel is impacted, the energy-absorption gel changes into a hard state from a soft state automatically, the energy is absorbed during the process, so as to effectively realize a protective effect, the silicone rubber foam material is used as the structural base body, when being impacted, foam holes deform to absorb a part of impacting energy, and the base body and the filler act at the same time to play a role in damping and buffering.

The invention relates to an automatic spraying equipment for round hot-rolled seamless steel pipes, which includes a bottom plate, a lifting adjustment device is installed on the bottom plate, an internal fixing device is installed in the middle of the upper end of the lifting adjustment device, and a spraying device is arranged outside the lifting adjustment device. The invention can solve the problem that the round steel pipe needs to be manually fixed during the spraying process of the round steel pipe, and the deformed position of the steel pipe needs to be sprayed manually, and the fixing of steel pipes of different specifications requires manual adjustment of the clamp position, and the operation is complicated. According to the round steel pipe spraying The location needs to be sprayed manually with the help of spraying tools, which takes a long time. The irritating gas in the spraying process affects the health of the staff. The manual fixing of steel pipes has problems such as poor stability, high labor intensity and low work efficiency. The function of automatic spraying of rolled seamless steel pipes.

The invention discloses a robot walking outside a pipeline, which consists of a power driving device, a walking guide device and an elastic element assembly (11) connected with the walking guide device. The power driving device is a rotary body consisting of a cylindrical body (1) and a cylindrical driving main body (4) through a rolling bearing (3), the inner wall of the cylindrical body (1) is fixedly provided with more than one motor (2), and a motor shaft is parallel to the axis of the cylindrical body (1) and is provided with a gear (6); one end of the inner wall of the cylindrical driving main body (4) is fixedly provided with an annular gear (5) which is engaged with the gear (6), the inner wall of the cylindrical driving main body (4) is provided with a group of driving wheels (8), and the rotating axes of the driving wheels (8) and the cylindrical driving main body (4) form an acute angle; and the inner wall of a cylindrical guide main body (12) of the walking guide device is provided with at least more than two groups of guide wheels (14), and the rotating axes of the guide wheels (14) are mutually vertical to the axis of the cylindrical guide main body (12). Both a mounting frame (7) and a guide wheel carrier (13) are floating bodies, and an elastic element (15) is used for producing a certain radial expansion amount so that the driving wheels (8) and the guide wheels (14) are attached to the outer wall of the pipeline (10) all the time. After the driving of the motor, the motor can advance or retract along the axis direction of the pipeline, and can be used for operations such as outer pipe quality detection, maintenance, repair and the like of various pipelines and stayed bridge cables.

The invention discloses a seasonal permafrost region self-thermoregulation returning energy-consuming slope supporting structure and a construction method and belongs to the technical field of seasonal permafrost anchor-plate retaining. The seasonal permafrost region self-thermoregulation returning energy-consuming slope supporting structure comprises a lattice beam, an anchor rod, a spring and a thermal insulation structure and is characterized in that the anchor rod is punched into a slope, anchoring slurry is injected with pressure, the anchor rod is anchored in a stable soil layer, a thermal insulation structure and a geogrid are sequentially paved from the slope surface to the exterior, a mortar surface layer is sprayed, a gird beam is constructed on the slope surface, the anchor rod penetrates a cross position of the gird beam, a base plate and a spring sequentially sleeve the anchor rod, the anchor rod is anchored on gird beam through an anchorage device, vertical water discharging channels are horizontally arranged with the interval of certain distance along the slope surface, a intercepting ditch is arranged at the slope top, and a drainage channel is constructed at a slope toe. The seasonal permafrost region self-thermoregulation returning energy-consuming slope supporting structure has self-thermoregulation thermal protection and heat insulation, expansion and shock reduction and self-returning supporting performances, timely discharges moisture, effectively solves slope instability caused by frost heaving thaw collapse disasters. The construction method is simple, strong in feasibility, quick in construction and low in cost.

The invention discloses a high-temperature gas cooled reactor new fuel element conveying and storing container in the field of nuclear power facilities. The container comprises a conveying container barrel body, a conveying container cover, a storing container barrel body, a storing container cover and a bundled pipe component, wherein the conveying container cover is used for sealing the top of the conveying container barrel body, the bundled pipe component is arranged in the storing container barrel body, and the storing container cover is used for sealing the top of the storing container barrel body; the space between an inner barrel body and an outer barrel body of the conveying container barrel body is filled with a barrel buffer layer, the top of the barrel buffer layer is sealed through an annular top flange, a top buffer rib plate is arranged on the outer circumference around the top surface of the top flange, and the outer barrel body surrounding the conveying container barrel is provided with an out-of-barrel buffer rib plate; the conveying container cover comprises a conveying container cover body and a cover body buffer layer which is arranged in the conveying container cover body; the storing container barrel body comprises a hanging basket barrel body, and an annular hanging basket barrel body, a neutron absorption plate and a protection plate which are radially arranged from the outside to the inside in sequence, and a bottom supporting plate is used for sealing the bottom of the hanging basket barrel body.

The invention provides an electrical control equipment cabinet having damping function. The electrical control equipment cabinet comprises a cabinet body; a first support plate is fixedly arranged at the bottom inside the cabinet body; a second support plate is arranged above the first support plate; and a first damping unit is arranged between the first support plate and the second support plate. A rubber gasket is fixedly connected above the second support plate; a plurality of cavities are formed in the rubber gasket; and second damping units are arranged in the cavities. When a downward acting force is applied to control equipment, a first buffer spring is compressed and a first sleeve moves downwardly; and in reverse, the first buffer spring has a downward buffering force to realize a certain buffering and damping effect; after a downward acting force is applied to the second support, a connecting post is driven a separation board to move downwardly; and when the separation board moves downwardly, hydraulic oil below the separation board flows through through holes slowly and thus a certain buffering force is generated by declining of the sepration board, so that the buffering and damping effects can be improved.

The invention provides an injection mold with an efficient heat dissipation function, and relates to the field of molds. The mold comprises an upper mold plate, a fixing base and a lower mold plate, and is characterized in that side rods are fixed on two sides of the top of the fixing base, an upper positioning plate and a lower positioning plate are arranged between the two side rods, and the upper positioning plate is positioned right above the lower positioning plate. According to the mold, a refrigerating sheet is arranged in the upper mold plate, a circulating water pipe is paved below the refrigerating sheet, and cold water is injected into the circulating water pipe through a water inlet pipe so that the refrigerating sheet can refrigerate water in the water pipe, generated cold aircan be used for cooling the mold between the upper mold plate and a lower mold groove, and the mold is cooled from the inside of the mold; meanwhile, a fan is arranged, and cold air generated throughthe fan can be blown to the mold groove through an air outlet, so that the mold in the mold groove is externally cooled; and through such arrangement, the rapid cooling of the mold can be accelerated, the heat dissipation performance is good, the working time is saved, and the working efficiency is improved.

The invention relates to a polyurethane damping material and a preparation method thereof. The preparation method for the polyurethane damping material comprises the following steps: uniformly mixing a shear thickening gel with a compatilizer, and then adding into a mixed polyurethane elastomer and mixing till being uniform, thereby obtaining the polyurethane damping material. According to the preparation method for the polyurethane damping material, the traditional method for forming the polyurethane elastomer is adopted; the process is simple; the cost is low; the performance is stable; and the process is simple and convenient. When the shear thickening gel is impacted, the polyurethane damping material automatically changes from soft state to hard state and can absorb energy, so that the protection function can be achieved; when the polyurethane elastomer as a structure matrix is impacted, a polyurethane skeleton structure has a support function and has a damping buffering function together with the padding; the use temperature scope is widened and the damping energy-absorbing capacity is promoted; the shear thickening gel can excellently disperse in the polyurethane matrix on the basis of the method of adding the compatilizer.

The invention discloses a fixed installation structure of a drainage pipeline. In the fixed installation structure, a main fixing plate is adsorbed and fixed through cooperation of a rotating magnet and a fixed magnet, and a sliding block and a sliding groove are matched and slid to correspondingly stretch and contract when the drainage pipeline expands in hot and contracts in cold. A rotary knobis rotated to change the magnetic pole direction of the rotating magnet to be matched with the fixed magnet to fix the drainage pipe, screw fixing is not needed, and convenience and rapidness are achieved. The fixed installation structure is characterized in that a connecting plate is fixedly arranged at the bottom of a fixing seat, the length of the connecting plate is larger than that of the fixing seat, a plurality of connecting grooves are formed in the position, close to one end, of the connecting plate, a plurality of connecting grooves are formed in the position, close to the other end,of the connecting plate, two fixing grooves are symmetrically formed in the top of the fixing seat, the fixing grooves are rectangular grooves, and two long clamping plates are arranged in the fixinggrooves and fixedly connected with the two sides of the fixing grooves correspondingly through springs.

The invention discloses a hydraulic engineering construction device. The hydraulic engineering construction device comprises an engine body. A feeding box is arranged at the left end of the upper side. A feeding hopper is arranged on the upper side of the feeding box. The bottom end of the feeding box is connected with a feeding port formed in the engine body through a blanking pipe. A premixing device is arranged inside the engine body. A driving motor is arranged on the upper side of the engine body. An output shaft of the driving motor penetrates through the upper surface of the engine bodyand is fixedly connected with a first gear. The invention further discloses an application method for the hydraulic engineering construction device. According to the hydraulic engineering construction device, the premixing device is arranged; the dispersing and buffering functions of a V-shaped plate are utilized, and effective premixing is conducted on raw materials and raw material additives; follow-up stirring mixing efficiency is effectively improved; on the one hand, a stirring shaft is driven to rotate by a driving motor, and on the other hand, under drive of a toothed rail, the stirring shaft conducts revolution around the axis of the engine body; stirring mixing is conducted on materials; stirring efficiency is improved greatly, and stirring is more thorough; and generation of bubbles when the materials are mixed can be effectively avoided.

The invention discloses a stem cell transportation box. A main box body is included and internally provided with a liquid nitrogen cavity. An inner box body is arranged in the liquid nitrogen cavity.The outer end of the inner box body and the inner wall of the liquid nitrogen cavity are elastically connected through damping springs, and the four sets of damping springs are arranged and achieve the damping function. Stand bars symmetrically arranged left and right are fixedly arranged at the bottom end of the main box body. A liquid nitrogen box plate is arranged at the bottom end of the mainbox body and tightened to the bottom end of the main box body through screws in a threaded manner. A liquid nitrogen box located in the liquid nitrogen cavity is fixedly arranged at the top end of theliquid nitrogen box plate and can volatilize liquid nitrogen, and heat preservation is achieved for the inner box body. A stem cell transportation box opening mechanism is provided with passwords, itcan be guaranteed that the transportation box cannot be opened at will, and a storage and taking mechanism facilitates storage and taking of stem cell test tubes. The device is good in damping and buffering function, a transmission structure of the device is simple, and faults are not likely to happen.

The invention relates to the technical field of photovoltaic microgrid, and discloses a switchgear for photovoltaic microgrid with heat dissipation function, including a cabinet body and a base, the top of the cabinet body is fixedly connected with a top plate, and the top of the cabinet body is connected with a A through pipe, the top of the through pipe runs through and extends to the top of the top plate, the top of the through pipe is fixedly communicated with an exhaust device located on the top of the top plate, the exhaust device includes a fixed plate, and the outer side of the fixed plate is fixed Blades are connected, and bearings are fixedly connected to the bottom of the blades. The photovoltaic microgrid switchgear with heat dissipation function, through the setting of the exhaust device, uses the natural wind speed of nature to drive the turbine to rotate, and uses the centrifugal force and negative pressure effect to convect the air inside and outside the cabinet, which can quickly discharge the hot air inside the cabinet. The effect of heat dissipation is achieved, and the exhaust device does not need electricity, has no noise, and can run for a long time, thereby achieving the effect of energy saving and environmental protection.

The invention discloses a high-temperature-resistant wall plate and a preparation method. The high-temperature-resistant wall plate comprises a substrate layer, a moisture absorption layer, a quick lime plate, a waterproof layer, a damp-proof plate, a sound-insulation layer, a heat-insulation layer, glass fibers, a high-temperature-resistant layer, a ceramic fiber board, a first cavity, a heatingand dehumidifying mechanism, heat-dissipation holes, a through hole, a sound-insulation plate, a first sound absorbing plate, a second sound absorbing plate, a spring, a buffer cavity, a sound absorbing hole, sound absorbing cotton, a spring hole, a second cavity, a first metal plate, a second metal plate and a heat-conduction rod, wherein the moisture absorption layer is arranged at one end of the substrate layer and consists of the quick lime plate; the waterproof layer is arranged at one end of the moisture absorption layer and consists of the damp-proof plate; the sound-insulation layer isarranged; and because the outermost layer of the sound-insulation layer is a second sound absorbing plate, sound successively penetrates through the second sound absorbing plate, the buffer cavity and the first sound absorbing plate, noises are gradually reduced and absorbed, and meanwhile, under cooperation of the spring and the sound absorbing cotton, damping and buffering effects can be achieved effectively when the wall plate is impacted.

The invention discloses an intelligent low-voltage integrated distribution box, include an outer case, An upper surface of that out box body is provided with a protective device, The left side surfaceand the right side surface of the outer box body are provided with evenly distributed ventilation holes, the side surface of the outer box body corresponding to the ventilation holes is provided withan arc plate, the lower surface of the outer box body is provided with a dust removing device, the inner upper end surface and the lower end surface of the outer box body are provided with a third shock absorber, and the third shock absorber is fixedly connected with the inner box body at one end away from the outer box body. The intelligent low-voltage integrated distribution box, the position of the mounting plate can be adjusted and fixed, easy to adjust the position of the electric device, The utility model can effectively improve the space utilization rate of the inner box body, can alsoprotect the outer box body through the protective device, and can improve the shock absorption effect of the inner box body through the third shock absorber, and can improve the dust removal and heatdissipation effect of the whole distribution box through the dust removal device, thereby prolonging the service life of the distribution box and being convenient to use.

The pneumatic gear shifting apparatus includes one casing with one executing mechanism; and one driving cylinder beside the casing and comprising one cover plate, one large cylinder body, one connecting seat, one small cylinder body, one support cover and one cylinder cover. The large cylinder body and the connecting seat enclose one large cavity with one large piston ring inside it; and the connecting seat, the small cylinder body and the support cover enclose one small cavity with one small piston ring inside it. The present invention has the advantages of simple structure and accurate gear shifting.

The invention discloses an automatic winding welding device comprising a winding machine table, a welding machine table, an eight-axis synchronous winding and an up-and-down needle drawing mechanism.A wire discharging frame is mounted on one side of the winding machine table. An loading water circulation device is mounted in the winding machine table, a winding device is mounted at one end of thetop of the winding machine table through a support, a winding machine head left-right mechanism is mounted on the support on one side of the winding device, the welding machine table is mounted at one end of the winding machine table, and universal wheels are mounted at four corners at the bottom of each of the welding machine table and the winding machine table, a laser welding host is mounted at the top of the welding machine table, and a computer host is mounted at one end of the welding machine table far away from the winding machine table. According to the automatic winding welding device, by installation of a damping gasket, the stability of the whole device is improved, to achieve the effect of vibration reduction, and the influence on work progress and winding welding effects caused by vibration in work is avoided.

The invention discloses a diesel engine with a base provided with a shock absorber and an installation method of the diesel engine. The diesel engine comprises an installation seat. Shock absorption pillars are symmetrically arranged at the bottom of the installation seat. A shock absorption groove is formed in the top of the installation seat. A base is arranged in the shock absorption groove. First movable shafts are symmetrically arranged on the base, and supporting rods are movably connected to the first movable shafts. The ends, away from the first movable shafts, of the supporting rods are arranged on second movable shafts in a sleeving manner, and the second movable shafts are fixed to sliding blocks. The sliding blocks are arranged on the outer sides of sliding rods in a sleeving manner. One ends of the sliding rods are fixedly connected with the inner wall of the shock absorption groove, and the other ends of the sliding rods are fixedly connected with baffles. The baffles arefixed to the bottom of the shock absorption groove. First shock absorption springs are arranged at the positions, located between the baffles and the inner walls of the shock absorption grooves in asleeving manner, on the outer sides of the sliding rods. A shock absorption mechanism is arranged between the bottom of the base and the bottom of the shock absorption groove. A shock absorber cushionplate is arranged on the top of the base, and a shock absorber base is arranged on the top of the shock absorber cushion plate. The diesel engine has the beneficial effects that the shock absorptioneffect is obvious, meanwhile, the labor strength of installation is also lowered, the installation period is shortened, and the production efficiency is improved.

The invention discloses a fixture for new energy automobile parts, and relates to the field of automotive technology. The fixture comprises a first U-shaped frame, wherein a motor box is fixedly connected to one side of the first U-shaped frame, and a motor is fixedly connected to the top of an inner cavity of the motor box; an output shaft of the motor is fixedly connected to a bidirectional leadscrew through a coupling, and the end, away from the motor, of the bidirectional lead screw sequentially penetrates through the motor box and the first U-shaped frame and extends to the inner wall ofthe first U-shaped frame; and the end, extending to the inner wall of the first U-shaped frame, of the bidirectional lead screw is rotatably connected to one side of the inner wall of the first U-shaped frame by a bearing. According to the fixture of the new energy automobile parts, the automobile parts are clamped tightly to avoid the automobile parts to be damaged, the safety of the automobiledriving is increased, users are prevented from accidents, the maintenance rate of an automobile is reduced, and the users can use more conveniently; and a shock absorber plays roles of shock absorbingand buffering on the automobile parts, and a anti-skid plate prevents the automobile parts from slipping off to enable the automobile parts more stable when operating.

The invention provides a preparation method of a high temperature-resistant intelligent energy absorbing material. A damping and protecting material with a high buffering performance is prepared with energy absorbing gel as a filler and a silicone rubber foamed material as a base body. The energy absorbing gel spontaneously becomes hard from soft when being impacted, and absorbs energy in the becoming process in order to realize an effective protection effect, and the silicone rubber foamed material used as the structure base body also can absorb parts of impact energy through cell deformation when being acted, so the base body and the filler are simultaneously used to realize damping and buffering effects.

The invention relates to the field of bridge construction, in particular to a bridge guardrail telescopic device. The bridge guardrail telescopic device comprises two guardrail plate assemblies, a damping frame assembly and a linkage rack assembly. Each guardrail plate assembly comprises a guardrail plate body, a driving anti-falling plate, multiple rebars and multiple positioning plates. The driving anti-falling plates are connected to the upper ends of the guardrail plate bodies in a sliding fit mode. The rebars are evenly welded to the outer ends of the guardrail plate bodies, and the positioning plates are welded to the outer ends of the rebars respectively. The two ends of the damping frame assembly are connected to the two guardrail plate bodies on the inner sides of the two guardrail plate assemblies respectively. When a bridge deforms or vibrates, the damping plate assembly in the device can achieve the effects of damping and buffering; when a gap exists in the bridge, the damping frame assembly can drive the driving anti-falling plates in the guardrail plate assemblies to slide inwards through the linkage rack assembly, thus, the gap generated by the bridge is blocked, andvehicles or pedestrians running on the bridge are prevented from falling off the bridge.

The invention discloses intelligent bodybuilding sports equipment convenient for control and operation. The intelligent bodybuilding sports equipment comprises a base, side plates, a bottom plate, a transverse plate, a cushion and a handle bar, the side plates are longitudinally welded on two sides of the middle top end of the base, a bottom plate in horizontal arrangement is welded on one side ofthe bottom of the base, and the transverse plate in horizontal arrangement is welded on one side of the top of the base. A guide rod is longitudinally connected at each of two ends of the top of a fixing seat, a plurality of counterweights are mounted outside the guide rods in a sleeved manner, a buffering structure is connected at each of two ends of the counterweights in a threaded manner, a roller is mounted at each of two ends of each counterweight, a threaded hole is formed in one side, close to the corresponding roller, of each of the two ends of each counterweight, two penetrating holes are formed between each two threaded holes, and each counterweight is mounted outside the corresponding guide rod through the corresponding penetrating hole. The equipment is convenient and quick inadjusting and comfortable in use and is less prone to wear, high in safety, long in service life and less prone to being damaged when in use. Assisted bodybuilding is realized through a hydraulic column, so that convenience is brought to control, and intelligent degree is high.

The invention discloses a psychological consultation diagnosis device using VR technology, and belongs to the technical field of medical diagnosis equipment. The psychological consultation diagnosis device using VR technology comprises a support base that is fixedly connected with a circular protrusion. The upper part of the circular protrusion is provided with a mounting base. A support spring isfixedly connected between the mounting base and the support base. The upper part of the mounting base is fixedly connected with a mounting cover of which the inner wall is fixedly connected with a VRdisplay screen. The both sides of the VR display screen are provided with monitoring recording cameras that are fixedly mounted on the inner wall of the mounting cover. The mounting base is also provided with a shock absorbing base of which the upper end is connected with a folding seat mechanism. The folding seat mechanism is connected with a massage mechanism. The psychological consultation diagnosis device of the invention effectively solves the problem that existing designs do not combine with the VR technology, resulting in the VR technology unavailable to psychiatric patients for psychological consultation and diagnosis well and the existing designs can not assist to relax patients in treatment process of the patients.

The invention discloses an earth surface rock breaking multi-position rotary drill machine for oil exploitation. The earth surface rock breaking multi-position rotary drill machine includes a fixed plate, a movable groove, a first fixing strip and an embedding groove. A supporting rod is fixedly welded to the outer wall of the fixed plate, a sliding block is mounted on the inner wall of a slidinggroove, a driving motor is mounted at the tail end of a movable rod, the output end of the driving motor is in flange connection with a rotating shaft, the first fixing strip is fixedly welded to thetail end of the fixed plate, a first mounting strip is mounted below the first fixing strip, the lower end of the first mounting strip is in screw connection with an anti-collision strip, the inner wall of the anti-collision strip is provided with a damping pad, and the embedding groove is disposed on the edge of the inner wall of the first mounting strip. The supporting rod in the earth surface rock breaking multi-position rotary drill machine for oil exploitation has a stabilizing and balancing function, the effect of fixedly supporting the whole machine can be achieved, and because a hydraulic pump and the driving motor generate a certain amplitude during the working process, a damping rod can have effects of damping on the amplitude.

The invention discloses a novel unpowered environment-friendly energy-saving vibrating screen which comprises a box. A first sieve plate and a second sieve plate are connected to the interior of the box from left to right in sequence through a sliding groove in a sliding mode. The two ends of the first sieve plate and the second sieve plate are each fixedly provided with a connecting rod. One side of each connecting rod is connected with an inner cam through a sliding wheel in a sliding mode, wherein the sliding wheel is rotationally connected with one side of the connecting rod. The invention relates to the technical field of mechanical devices. According to the novel unpowered environment-friendly energy-saving vibrating screen, the inner cams are driven by a motor to rotate, by means of elliptic grooves inside the inner cams, the sliding wheels drive the connecting rods to reciprocate up and down, the first sieve plate and the second sieve plate are driven indirectly to reciprocate up and down, and therefore vibration is formed; a filter net with the large mesh size is fixedly installed inside the first sieve plate, and a filter net with the small mesh size is fixedly installed inside the second sieve plate, so that materials are subjected to classified screening, and the practicability and the screening efficiency of the vibration screen are improved.

The invention relates to a ship additional device capable of resisting shock, preventing overturning and converting wave energy. The ship additional device comprises wing tanks arranged on two sides of a ship body, wherein outer plates fixed on the ship body are arranged on the wing tanks; the outer plates and ship walls form a space structure of which the top end is closed and the bottom end is opened; the upper part of the space structure is divided into a plurality of sealed air cabin chambers by the space structure through baffles, and the lower part of the space structure is divided into corresponding unit cabin chambers through vertical baffles or slant baffles the unit cabin chambers are positioned under the corresponding air cabin chambers, the bottoms of the unit cabin chambers are opened, and the upper parts of the unit cabin chambers communicate with the corresponding air cabin chambers through an one-way air inlet valve; besides, the unit cabin chambers communicate with outer spaces over a water surface through air ducts; the air cabin chambers are positioned over a load water line of the ship body; the air outlet ends of the air cabin chambers are connected with air accumulation equipment or air exhaust equipment on the ship through air transmission pipelines; the air outlet ends of the air cabin chambers are separately controlled by separate gas valves.