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43results about How to "Prevent sudden drop" patented technology
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Auxiliary weightlifting frame preventing drop of barbell
The invention relates to an auxiliary frame, in particular to an auxiliary weightlifting frame preventing drop of a barbell. The auxiliary weightlifting frame preventing the drop of the barbell can clamp the barbell, prevent injuries of weightlifting personnel due to the drop of the barbell and avoid smash of a floor. The auxiliary weightlifting frame preventing the drop of the barbell comprises abase, a frame body, a support plate, a bearing pedestal, a rotating shaft, a ratchet wheel and a volute spring, wherein the frame body is fixedly connected with the front side and the rear side of the top of the base symmetrically; a guide hole is formed in the middle of the top of the frame body; the support plate is fixedly connected with the left side of the outer top of the frame body; and the bearing pedestal is fixedly connected with the upper part of the support plate in an embedded manner. According to the auxiliary weightlifting frame, an arc sleeve and an arc rod are fixed on the barbell; a ratchet is matched with the ratchet wheel, so that the sudden drop of the barbell can be avoided; the injuries of the weight-lifting personnel are also avoided; the barbell can move down moreslowly to be contacted with the floor through a buffering device, so that the smash of the floor is also avoided.
Owner:义乌市泽宣科技有限公司
Dynamic rotating speed protection method and system for virtual inertia frequency modulation of doubly-fed fan
ActiveCN110890765AReduce speedOutput power dipSingle network parallel feeding arrangementsPower oscillations reduction/preventionVirtual inertiaControl theory
The invention discloses a dynamic rotating speed protection method and system for virtual inertia frequency modulation of a doubly-fed fan. The method comprises the steps that an MPPT curve power reference value is obtained according to the rotating speed of the fan; performing virtual inertia control on the deviation between the actual frequency and the rated frequency to obtain an additional active reference signal added on the basis of the MPPT curve power reference value; performing dynamic rotation speed protection on the fan electromagnetic power actually output at the previous moment, the rotation speed of the fan and the product of delta f and the virtual inertia control differential coefficient to obtain output power; According to the power reference value, the extra active powerreference signal and the output power, obtaining the electromagnetic power output by the fan at the current moment. The output power of the fan can slowly drop to the maximum power tracking curve according to the change of the rotating speed of the rotor in the frequency modulation process, excessive reduction of the rotating speed of the fan is avoided, the fan can automatically recover to the original maximum power point after frequency modulation is finished, and therefore the stability and economical efficiency of the fan in the frequency modulation process are guaranteed.
Owner:SHANDONG UNIV +2
Spare tire protection and lifting fixing device
ActiveCN103241297APrevent sudden dropReduce weightSpare wheel arrangementsArchitectural engineeringSpare tire
The invention relates to the automobile spare tire external support field, particularly to a spare tire protection and lifting fixing device. The spare tire protection and lifting fixing device comprises a mounting support assembly, a transmission mechanism assembly, a pallet assembly and a steel wire rope. The mounting support assembly comprises a large support, a small support and a transmission pipe, wherein the large support and the small support are fixedly connected to an automobile body and fixedly connected through the transmission pipe; the transmission mechanism assembly is fixedly mounted on the large support, a main shaft in the transmission mechanism assembly is drivingly connected with a transmission disk which is connected with an inner gear disk through gear transmission, and the outside of the inner gear disk is provided with a wire slot; and one end of the steel wire rope is connected with the pallet assembly, the other end of the steel wire rope penetrates through the transmission pipe and is connected with the wire slot of the inner gear disk in a winding mode, and the disk piece of the inner gear disk is provided with lightening holes. According to the spare tire protection and lifting fixing device, the transmission mechanism is reasonable, the weight of moving parts can be lightened through the lightening holes, and labor-saving operation and smooth and stable transmission are achieved.
Owner:SAIC MOTOR
Pole climbing machine
A pole climbing machine belongs to the climbing machine field; the pole climbing machine consists of a concave chassis, a pole climbing frame, a clamping mechanism and a guide claw mechanism; the concave chassis is connected with the pole climbing frame in a welding manner to form a groove-shaped space; a column is fixed in the groove-shaped space; the clamping mechanism is provided with two 90-degree arranged sliding rails; when the clamping mechanism clamps the column, a dead point exists, and the machine can be prevented from falling off through the dead point; a gear train structure of thechassis can move on the plane in all directions; the pole climbing machine is novel in structure, easy to operate and more stable in pole climbing, and the danger is reduced.
Owner:WEIFANG UNIV OF SCI & TECH
Jack with brake device
The invention relates to a jack with a brake device. The jack with the brake device comprises a base and left and right wallboard parts arranged on the left side and the right side of the base respectively, a lifting arm part and an oil pump device are arranged between the left and right wallboard parts, the rear part of the lifting arm part is movably connected with a piston rod of the oil pump device, a stop part and a pedal part for controlling the stop part are further arranged between the left and right wallboard parts, the stop part comprises a stop arm, the rear end of the stop arm is pivoted to the left and right wallboard parts, a non-slip part is arranged at the front section of the stop arm, the rear portion of the lifting arm part is matched with the non-slip part, the pedal part is pivoted to the left and right wallboard parts, the non-slip part of the stop arm can be separated from a connecting shaft by treading on the pedal part, a reset mechanism is arranged between thestop arm and the left and right wallboard parts, and the reset mechanism applies upward acting force to the stop arm, so that the non-slip part is matched with the connecting shaft. The brake deviceprevents the jack from suddenly falling when a hydraulic system breaks down, thereby playing a role in protecting.
Owner:安徽蒂森五金工具有限公司
Air pressure meter belt type watch
ActiveCN109875194AAccurately match the circumferenceImprove air tightnessBraceletsWrist-watch strapsEngineeringAtmospheric pressure
Owner:东莞市明晖精密金属有限公司
Water conservancy gate with emergency treatment function capable of rising and falling with water level
InactiveCN111809575APrevent sudden dropAvoid pollutionBarrages/weirsTreatment involving filtrationWater storageEmergency treatment
The invention discloses a water conservancy gate with an emergency treatment function capable of rising and falling with water level. The water conservancy gate with the emergency treatment function capable of rising and falling with the water level includes a water storage body; and an impounding reservoir with a leftward opening is arranged in the water storage body. The invention discloses a water conservancy gate which is mainly used in water conservancy and hydropower and can be discharged in time, which can drive up and down sliders to rise and fall through the height of the water levelin the process of water storage, so as to affect and drive the rise and fall of the lifting gate; meanwhile, the rotation of water flow blades and an abutment mechanism are used for realizing the abutment between an auxiliary inclined block and a main inclined block, which can avoid sudden drop when the lifting gate is open; the waste can be filtered and processed through a filter plate, which prevents the waste from continuing to pollute the water source; and meanwhile, the drainage in emergency situations can be realized through an active rod, so that the water storage and drainage work canbe carried out more safely.
Owner:缙云普层泵阀科技有限公司
Noise reduction device for reducing noise in steel pipe transportation process
PendingCN114694623AReduce steel pipe lossReduce manufacturing costSound producing devicesPackaging machinesSteel tubeSteel plates
The invention provides a noise reduction device for reducing noise in a steel pipe transportation process, which comprises a drying pit pipe placing area noise reduction module, a passivation pipe placing area noise reduction module and a packaging area noise reduction module, and is characterized in that a steel pipe is firstly conveyed to the drying pit pipe placing area noise reduction module by a steel pipe conveying device; and then, the pipe is conveyed to the passivation pipe placing area noise reduction module through a chain conveying belt, and finally, the pipe is conveyed to the packaging area noise reduction module through a roller way. The steel pipe conveying device has the beneficial effects that the noise reduction module can conduct blocking between two steel pipes or between the steel pipe and a steel plate, large noise caused by collision is avoided, the quality of each steel pipe can be guaranteed to a certain degree, and the situation that the outer portions of the steel pipes are damaged due to collision in the conveying process is avoided.
Owner:TIANJIN YOUFA STEEL PIPE GRP CO LTD
Card connector
InactiveCN1707865AReduced depth sizeSmall sizeConveying record carriersCoupling device detailsRange of motionEngineering
A card connector (1), wherein a cam mechanism (50) is composed of a heart-shaped cam groove (42) that is formed in a slider (40), and a cam rod (51) that is shaft-supported by a housing (10) and that swings along the cam groove (42). A locking member (60) has a cantilever form one end of which is fastened to the slider (40), and the mobility range of the free end at the other end overlaps with the cam groove (42).
Owner:TYCO ELECTRONICS JAPAN GK
Boosted engine system of a motor vehicle
ActiveCN107975417AMeet torque requirementsIncrease electricity demandElectrical controlInternal combustion piston enginesMobile vehicleHigh torque
The invention relates to a boosted engine system of a motor vehicle. Methods and systems are provided for a boosted engine system having an engine arranged to receive boosted air from a variable geometry turbocharger and an electrically powered compressor arranged in parallel with the turbocharger. During temporary high torque demands above a predefined level, the electrically powered compressor may be used to supplement the flow of boosted air from the turbocharger. Additionally, a recirculation circuit around the electrically powered compressor may be provided to build up pressure in the electrically powered compressor before it is connected to the engine so as to minimize fluctuations in engine boost pressure upon start-up of the electrically powered compressor.
Owner:FORD GLOBAL TECH LLC
Folding easy-maintenance street lamp
InactiveCN106051566AGuaranteed safe foldingPrevent sudden dropMechanical apparatusLighting support devicesEngineering
The invention relates to a folding easy-maintenance street lamp. A lamp post is in a long hollow cylindrical tubular shape, and an opening and closing folding door is arranged on the middle upper part of the side wall of the lamp post; a core column is arranged in the lamp post, the core column is designed into three sections, two adjacent sections of the core column are hinged end to end, and the length of the three sections of the core column after vertical unfolding is greater than that of the lamp post; a lamp body is fixed to the top end of the core column, a rain cover is arranged below the lamp body, and the inside diameter of the rain cover is greater than the outside diameter of the lamp post. According to the folding easy-maintenance street lamp, the lamp post of the street lamp can be conveniently folded and lowered, a special vehicle with a lifting platform is not needed, the maintenance cost is low, and the danger that maintenance personnel possibly fall off is avoided; and in addition, the street lamp can be maintained in time in case of a failure without waiting for the special vehicle, and only the lamp post of the street lamp needs to be supported by a long post, so that the street lamp can be maintained in time, and normal road lighting for urban residents cannot be influenced.
Owner:俞翠燕
A combined double-layer switch cabinet and its combination method
ActiveCN112103784BSmooth liftReduce wearSubstation/switching arrangement cooling/ventilationSubstation/switching arrangement casingsFixed frameSwitchgear
The invention discloses a combined double-layer switch cabinet, which comprises a main cabinet body, two symmetrical cabinet doors are arranged on the front of the main cabinet body, a PLC controller is arranged on the side of the main cabinet body, and the main cabinet body Two symmetrical limit blocks are fixedly installed on the bottom wall of the body, and installation grooves are movably connected between the adjacent sides of the two limit blocks. An adjustment plate is fixedly installed on the top of the slide rail, an installation frame is fixedly installed on the top of the adjustment plate, and a fixed frame is fixedly installed on the top of the installation frame. The invention can control the lifting and lowering of the regulating plate while the regulating plate is rising or falling, and the limiting rollers on both sides receive the limiting action of the limiting plate, so that the rising and falling of the regulating plate is more stable. The friction between them is rolling friction, which reduces the wear and tear between equipment parts.
Owner:雷朋电气集团有限公司
A kind of screw-type bulldozing sample device and bulldozing sample method
Owner:SHANDONG UNIV OF SCI & TECH
Supporting scaffold for bridge construction
ActiveCN114808749AEnsure connection tightnessImprove lifting stabilityBridge erection/assemblyHydraulic cylinderFalsework
The invention belongs to the field of bridge construction, relates to a construction equipment technology and aims to solve the problem that an existing scaffold is not provided with a corresponding anti-falling mechanism to provide anti-falling protection, in particular to a supporting scaffold for bridge construction and an operation system of the supporting scaffold, the supporting scaffold comprises a supporting box body, and a jacking mechanism and a pulling detection mechanism are arranged in the supporting box body; the jacking mechanism comprises a bearing plate slidably connected between the inner side walls of the bearing box body, two symmetrical hydraulic cylinders are fixedly installed between the bottom of the bearing plate and the inner bottom wall of the bearing box body, the hydraulic cylinders are used for jacking up the bearing plate to support the bearing columns and the balance arms, the evenly-distributed bearing columns are fixedly installed on the top of the bearing plate, and the balance arms are fixedly installed on the top of the bearing plate. The top of the supporting column penetrates through the inner top wall of the supporting box body and extends to the outside of the supporting box body; according to the working platform, the steel cable penetrates through the first wrapping hole and the locking ring to lock the balance plate, so that the connection tightness of the balance plate and the supporting box body is guaranteed, and the lifting stability of the working platform is improved.
Owner:SHANXI LINFEN MUNICIPAL ENG GRP CO LTD
a lifting device
ActiveCN104355265BAchieve liftingLifting stroke lengthServomotorsLifting framesHydraulic cylinderControl system
The invention relates to a lifting device which comprises a lifting mechanism connected with a hydraulic control system, wherein the lifting mechanism comprises more than one group of lifting units; each lifting unit comprises a lower supporting plate, an upper lifting platform and multilayer supporting devices; each-layer supporting device comprises two supporting arms arranged in an X-shaped cross manner and hinged through a pin shaft; the upper ends of the two supporting arms are correspondingly hinged to the lower ends of two supporting arms of the upper-layer supporting device; the bottom end of a supporting arm of the lowest-layer supporting device is hinged to the lower supporting plate, and a lower idler wheel which rolls in a lower track on the lower supporting plate is mounted at the bottom end of the other supporting arm of the lowest-layer supporting device; the top end of a supporting arm of the uppermost-layer supporting device is hinged to the bottom of the upper lifting platform, and an upper idler wheel which rolls in an upper track on the upper lifting platform is mounted at the top end of the other supporting arm of the uppermost-layer supporting device; the fixed end of a hydraulic cylinder is hinged to the lower section of one supporting arm of the lowest-layer supporting device; the stretching end of the hydraulic cylinder is hinged to the lower section of one supporting rod of the uppermost-layer supporting device.
Owner:TAIXING TALI MACHINERY MFG
Special equipment for tipping and replacing large slab crystallizers in the aluminum processing industry
Owner:HENAN ZHONGFU ALUMINUM ALLOY
a chain hoist
The invention discloses a chain hoist, which comprises a casing, a left wallboard, a right wallboard, a long shaft, an upper hook, a lower hook, a lifting device arranged in the casing, and a hand pull device for driving the lifting device to go up and down ; It is characterized in that: the hand chain hoist makes the hand chain wheel rotate through the hand chain, and then drives the lifting chain wheel to rotate through the interlocking parts to complete the lifting of the lower hook. The invention has the advantages of anti-jamming chain, anti-dropping and the like.
Owner:ZHEJIANG GUANLIN MACHINERY
Card connector
InactiveCN100530841CReduced depth sizeSmall sizeConveying record carriersCoupling device detailsRange of motionCam
A card connector (1), wherein a cam mechanism (50) is composed of a heart-shaped cam groove (42) that is formed in a slider (40), and a cam rod (51) that is shaft-supported by a housing (10) and that swings along the cam groove (42). A locking member (60) has a cantilever form one end of which is fastened to the slider (40), and the mobility range of the free end at the other end overlaps with the cam groove (42).
Owner:TYCO ELECTRONICS JAPAN GK
Mechanical connecting element, electrical contact device and electrical connector
InactiveCN109994846APrevent sudden dropAvoid sudden failureMultiple conductors connectorFastening/insulating connecting partsElectricityElectrical connector
Owner:TE CONNECTIVITY GERMANY GMBH
Dynamic speed protection method and system for double-fed fan virtual inertia frequency modulation
ActiveCN110890765BReduce speedOutput power dipSingle network parallel feeding arrangementsPower oscillations reduction/preventionClassical mechanicsEngineering
The invention discloses a dynamic rotating speed protection method and system for virtual inertia frequency modulation of a doubly-fed fan. The method comprises the steps that an MPPT curve power reference value is obtained according to the rotating speed of the fan; performing virtual inertia control on the deviation between the actual frequency and the rated frequency to obtain an additional active reference signal added on the basis of the MPPT curve power reference value; performing dynamic rotation speed protection on the fan electromagnetic power actually output at the previous moment, the rotation speed of the fan and the product of delta f and the virtual inertia control differential coefficient to obtain output power; According to the power reference value, the extra active powerreference signal and the output power, obtaining the electromagnetic power output by the fan at the current moment. The output power of the fan can slowly drop to the maximum power tracking curve according to the change of the rotating speed of the rotor in the frequency modulation process, excessive reduction of the rotating speed of the fan is avoided, the fan can automatically recover to the original maximum power point after frequency modulation is finished, and therefore the stability and economical efficiency of the fan in the frequency modulation process are guaranteed.
Owner:SHANDONG UNIV +2
Balance weight anti-falling device and balance weight mechanism
ActiveCN113357311ASimple structureGuaranteed uptimeCounterweightsPipeline systemsMachine toolMechanics
The invention relates to the technical field of balance weight devices, in particular to a balance weight anti-falling device and a balance weight mechanism. The balance weight anti-falling device comprises a shell, the shell comprises an inlet and an outlet, a pipeline is arranged in the shell, the inlet communicate with the outlet through the pipeline, the inlet is used for communicating with an air supply source, and the outlet is used for communicating with a balance weight air cylinder; and the balance weight anti-falling device further comprises a control valve, and the control valve is connected to the pipeline, wherein the pipeline comprises a first pipeline and a second pipeline, the first pipeline communicates with the inlet and the control valve, the second pipeline communicates with the balance weight air cylinder and the control valve, and the control valve can be automatically closed when gas is cut off or power is cut off, so that gas is blocked in the second pipeline. The balance weight anti-falling device can enable the balance weight air cylinder to be kept at an original position during emergency power failure or air failure, and the situation that equipment such as a machine tool and an elevator falls suddenly and damages products or parts is avoided.
Owner:BOZHON PRECISION IND TECH CO LTD
Combined double-layer switch cabinet and combination method thereof
ActiveCN112103784ASmooth liftReduce wearSubstation/switching arrangement cooling/ventilationSubstation/switching arrangement casingsStructural engineeringMechanical engineering
The invention discloses a combined double-layer switch cabinet which comprises a main cabinet body, two symmetrical cabinet doors are arranged on the front face of the main cabinet body, a PLC is arranged on the side face of the main cabinet body, two symmetrical limiting blocks are fixedly installed on the inner bottom wall of the main cabinet body, an installation groove is movably connected between the close side faces of the two limiting blocks, first electric push rods are fixedly mounted on the inclined faces of the two mounting blocks correspondingly, an adjusting plate is fixedly mounted at the top of the sliding rail, a mounting frame is fixedly mounted at the top of the adjusting plate, and a fixing frame is fixedly mounted at the top of the mounting frame. A lifting adjusting plate of the adjusting plate can be controlled to ascend or descend, meanwhile, limiting rollers on the two sides are limited by the limiting plates, ascending and descending of the adjusting plate aremore stable, meanwhile, friction between the limiting rollers and the inner wall of the sliding groove is rolling friction, and abrasion between equipment parts is reduced.
Owner:雷朋电气集团有限公司
Ecological water pollution treatment system
PendingCN111333218AOxygen dropGuaranteed survivalWater treatment parameter controlSpecific water treatment objectivesEngineeringEnvironmental engineering
The invention discloses an ecological water pollution treatment system. The device structurally comprises a floating plate, a water circulation treatment mechanism, connecting frames, floating bodiesand aerators, the floating plate is horizontally installed at the lower end of the water circulation treatment mechanism, the floating bodies are installed at the upper end of the water circulation treatment mechanism, the connecting frames are fixedly installed on the two sides of the upper end of the water circulation treatment mechanism, and the aerators are vertically embedded into the left side of the water circulation treatment mechanism; the water circulation treatment mechanism comprises a water inlet, a pollution treatment mechanism, a circulation pump body and a water outlet, and thepollution treatment mechanism is arranged on the right side of the circulation pump body, so that blue-green algae in a water body can be treated, sudden reduction of oxygen in the water body is prevented, survival of aquatic organisms is guaranteed, and the water quality is better protected; the mobile structure is arranged on the right side of the additive release structure, treatment can be conducted according to the amount of blue-green algae in the water body and can be conducted in a targeted mode, the green tide phenomenon is reduced, oxygen in the water body is increased, survival oforganisms in the water body is guaranteed, and overall deterioration of the water body is prevented.
Owner:郑芳
Jacking device used for mounting of steel structure net rack and using method of jacking device
ActiveCN112479075AReduce work stressIncrease the feeding speedSafety devices for lifting equipmentsResourcesWorking pressureIndustrial engineering
The invention belongs to the field of net rack mounting, and relates to the technology of jacking equipment, in particular to a jacking device used for mounting of a steel structure net rack and a using method of the jacking device. The jacking device comprises a jacking mechanism, the jacking mechanism comprises a base, rolling wheels, a jacking component, a top plate and two side plates, the twoside plates are fixedly mounted on the two sides of the top face of the base correspondingly, the jacking component is arranged between the two side plates, the top plate is fixedly mounted between the tops of the two side plates, and a material bin is arranged on the top face of the top plate. The material bin is hinged to a mounting seat, and a first electric push rod is arranged in a groove ofthe mounting seat, the material bin can automatically rotate and incline for discharging after being jacked to a mounting platform, and therefore manual discharging is not needed after the material bin is jacked to the mounting platform, the working pressure of workers is reduced, and the discharging speed can be increased.
Owner:安徽盛世开元装备科技有限公司
Hydraulic valve controller for heavy construction installation
InactiveCN1284933CPrevent sudden dropEasy to operateServomotor componentsServomotorsHydraulic pumpActuator
Prevent the sudden drop of the actuator by discharging high-pressure hydraulic fluid into the channel on the liquid supply side of the actuator when the actuator is lowered, and provide a device installed on the channel between the hydraulic pump and the actuator and control the drive of the actuator The main spool shaft barrel, a poppet valve installed on the channel between the main spool shaft barrel and the actuator to prevent the actuator from descending, and a spool shaft barrel installed between the back pressure chamber and the return path of the poppet valve. When connecting the back pressure chamber and the channel on the discharge port of the main valve core shaft barrel, and a liquid flow reduction channel connecting the back pressure and the return flow channel when the valve core shaft barrel is switched, so as to reduce the hydraulic fluid discharged from the actuator.
Owner:SAMSUNG HEAVY IND CO LTD
Air pressure watchband type watch
PendingCN111802756AAccurately match the circumferenceImprove convenienceBraceletsWrist-watch strapsEngineeringMechanical engineering
Owner:倪婷
A wall-climbing robot system for hull paint removal
ActiveCN110949636BReduce loadEasy crawlVessel cleaningHullsStructural engineeringMechanical engineering
The invention relates to a ship body paint-removing wall-climbing robot system in the technical field of environment-friendly paint removing. The ship body paint-removing wall-climbing robot system comprises a robot body which is remotely controlled to automatically climb on the wall face of a ship body and a hoisting component for hoisting the robot body. The robot body includes: a robot frame; two pairs of walking wheels which are rotationally arranged on the left and right sides of the robot frame respectively; a walking driving mechanism whchi is mounted on the robot frame and used for driving the two pairs of walking wheels to roll on the wall surface of the ship body; a spray washing mechanism which is mounted on the robot frame and used for washing old paint on the wall surface of the ship body; a sewage recycling mechanism whcih is arranged on the robot frame and is used for recycling sewage, wherein the sewage discharge end of the sewage recovery mechanism is communicated witha sewage recovery container which is independently arranged relative to the robot main body. Old paint on the wall face of the ship body is rapidly removed in a relatively environment-friendly mode,time is saved for rapid coating of the ship body, efficiency is improved, and safety guarantee is provided for operators.
Owner:上海宝冶工程技术有限公司 +1
Spare Wheel Protection and Lifting Fixtures
ActiveCN103241297BPrevent sudden dropReduce weightSpare wheel arrangementsGear wheelArchitectural engineering
The invention relates to the automobile spare tire external support field, particularly to a spare tire protection and lifting fixing device. The spare tire protection and lifting fixing device comprises a mounting support assembly, a transmission mechanism assembly, a pallet assembly and a steel wire rope. The mounting support assembly comprises a large support, a small support and a transmission pipe, wherein the large support and the small support are fixedly connected to an automobile body and fixedly connected through the transmission pipe; the transmission mechanism assembly is fixedly mounted on the large support, a main shaft in the transmission mechanism assembly is drivingly connected with a transmission disk which is connected with an inner gear disk through gear transmission, and the outside of the inner gear disk is provided with a wire slot; and one end of the steel wire rope is connected with the pallet assembly, the other end of the steel wire rope penetrates through the transmission pipe and is connected with the wire slot of the inner gear disk in a winding mode, and the disk piece of the inner gear disk is provided with lightening holes. According to the spare tire protection and lifting fixing device, the transmission mechanism is reasonable, the weight of moving parts can be lightened through the lightening holes, and labor-saving operation and smooth and stable transmission are achieved.
Owner:SAIC MOTOR
A lifting hydraulic control system
ActiveCN104355266BAchieve liftingLifting stroke lengthServomotor componentsServomotorsHydraulic cylinderFour-way valve
The invention relates to a lifting hydraulic control system which comprises an oil tank, a hydraulic pump and a hydraulic control circuit, wherein an input end of the hydraulic pump is connected with the oil tank via a pipeline; the lifting hydraulic control system is characterized in that an output end of the hydraulic pump is connected with the P port of a three-position four-way valve; the T port of the three-position four-way valve is connected with the oil tank via a pipeline; the A port of the three-position four-way valve is connected with an input end of a balance valve; each of the two input ends of the balance valve is connected with an input end of each of two hydraulic control valves; the B port of the three-position four-way valve is divided into two branches, and each of the two branches is connected with the other input end of each of the hydraulic control valves; the output ends of the hydraulic control valves are connected with the input ends of corresponding hydraulic cylinders; electromagnetic valve reversing valve branches are arranged on pipelines between the hydraulic control valves and the input ends of the hydraulic cylinders; input ends of electromagnetic reversing valves are connected with the input ends of the hydraulic cylinders; two output ends of the electromagnetic reversing valves are connected with the oil tank via pipelines respectively; the hydraulic pump, a three-way electromagnetic valve and the electromagnetic reversing valves are connected with the control circuit.
Owner:TAIXING TALI MACHINERY MFG
Dredging equipment
InactiveCN108672005ARealize automatic crushing workEasy discharge collectionRotary stirring mixersTransportation and packagingBiochemical engineeringElectric control
The invention discloses dredging equipment, which comprises a lower base body and an upper base body, wherein the lower base body and the upper base body are integrated, support columns are fixed on the periphery of the bottom portion of the lower base body, the upper base body is positioned at the left end of the top portion of the lower base body, a stirring chamber is embedded in the right endsurface of the top portion of the lower base body, a frame rod is arranged at the right end of the top portion of the lower base body, a discharge hole communicated to the stirring chamber is arrangedat the right end surface of the lower base body, a first electric control valve is arranged in the discharge hole, a crushing chamber is arranged in the upper base body, and a funnel groove communicated to the crushing chamber is arranged on the top end surface of the upper base body. According to the present invention, the dredging equipment has characteristics of simple overall structure, simple and convenient operation and substantially reduced input cost, can perform the integrated operation of automatic crushing and automatic stirring on debris, can effectively crush the large objects indebris, can reduce the debris treatment cost, can simplify the river course debris treatment step, and is suitable for popularization and use.
Owner:毛建锋
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