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38results about How to "Great driving force" patented technology

Disconnected frame and mine truck

ActiveCN224241103USimple and reasonable structureimprove integrityUnderstructuresAxle unitsTransfer caseVehicle frame
The utility model provides a disconnected type vehicle frame and a mine truck, the disconnected type vehicle frame comprises a front vehicle frame and a rear vehicle frame, a slewing bearing is arranged between the front vehicle frame and the rear vehicle frame, the outer ring of the slewing bearing is fixedly connected to the rear end part of the front vehicle frame, and the inner ring of the slewing bearing is fixedly connected to the front end part of the rear vehicle frame; and the inner ring and the outer ring of the slewing bearing are rotationally connected. Compared with an existing integral frame vehicle, the front frame and the rear frame adopting the slewing bearing can rotate in a small range in the advancing direction, so that an axle can be in better contact with the ground, the driving force of the vehicle is increased, and the cross-country performance of the vehicle is improved; compared with an existing articulated truck that a power assembly and a transfer case are both installed on a front truck, the power assembly of the disconnected truck frame adopting the slewing bearing is installed on the front truck frame, the transfer case is installed on the rear truck frame, the size of a front overhang and a wheel base of the whole truck is small, the length of the whole truck is reduced, applicability is improved, and wide application and popularization prospects are achieved.
Owner:INNER MONGOLIA IRIDIUM MOLYBDENUM ZHIHUI TECH CO LTD

A stator coil structure for a magnetic levitation planar motor and a magnetic levitation planar motor

PendingCN122512735AIncrease slot fill rateImprove space utilizationElectrical conductorElectric machine
The present application relates to a kind of stator coil structure and magnetic levitation plane motor for magnetic levitation plane motor.The stator coil structure includes multiple groups of shaping coils and multiple groups of long strip coils, each group of shaping coils and corresponding group of long strip coils form a group of coil combination units;Multiple groups of coil combination units are arranged according to predetermined coil period, for interacting with the mover permanent magnet array located above or below when energized, generate horizontal direction driving force and / or vertical direction suspension force;Each group of shaping coils and long strip coils are arranged alternately, and the shaping coil is used to fill the space gap formed by the arrangement of long strip coil, to improve the effective conductor ratio and coil slot fill factor in stator plane.The present application increases the effective conductor area involved in electromagnetic force under the premise that the heat dissipation condition and thermal power remain basically unchanged, so as to improve the output force density of magnetic levitation plane motor.
Owner:NANJING UNIV OF SCI & TECH

A locking and releasing device for 4D-printed small satellites based on SMA

This invention discloses a locking and release device for a 4D-printed small satellite based on SMA (Super-Magnetic Atomizing) technology, belonging to the fields of aerospace and biomimetic 4D printing technology. The device consists of a main supporting shell 1, a launch platform 2, an auxiliary drive device 3, a locking lever 4, a locking and release spring assembly 5, and an energy storage spring assembly 6. The auxiliary drive device 3 controls the downward movement of the locking mechanism through temperature changes of the inner and outer springs, thereby compressing the energy storage spring assembly 6 and heating it to achieve autonomous energy storage. The launch platform 2 supports the satellite at its upper end and is tightly connected to the energy storage springs at its lower end. The locking and release spring assembly 5 is used to lock the satellite and drive its release. In summary, this invention provides a locking and release device for a 4D-printed small satellite based on SMA, making the failure modes of the satellite launch device effectively controllable and improving the device's adaptability to the extreme environment of space.
Owner:JILIN UNIVERSITY

Monorail personnel transportation device for coal mine tunnel

ActiveCN224211054UFlexible disassemblyFlexible ones stretchPassenger carriagesLocomotive transmissionsHydraulic motorBrake
The monorail personnel transportation device for the coal mine tunnel comprises a rail assembly and a transportation vehicle advancing on the rail assembly, the transportation vehicle comprises a driving part, a cabin and a bearing trolley, the rail assembly comprises a rail, the driving part comprises a hydraulic motor and a friction wheel, the friction wheel can roll on the rail, and the cabin is arranged on the rail. Through driving of the hydraulic motor and friction wheels on the two sides, the running speed is increased, the driving force is larger, the gradeability is higher, running is more stable, a rail is clamped through a brake block of a brake assembly, rapid braking can be achieved, the transport capacity of a single train can be improved according to the needs of personnel through the modular marshalling design, and the situation that the train does not need to turn around to go back and forth is achieved through the two-way cockpit configuration; the air spring damping and rotation structure enables operation to be more stable, the track structure supports rapid extension, and the narrow fuselage design enables the device to be suitable for a complex narrow roadway network of a mine.
Owner:SHANDONG YANCOAL BLACK PANTHER MINING EQUIP CO LTD

Heavy duty desert tire inflation control system and method

ActiveCN117698342BGreat driving forceIncrease ground ratio
The present application belongs to the technical field of vehicle control, and specifically provides a heavy desert tire inflation and deflation control system and method, which comprises an inflation and deflation control module, a tire inflation and deflation control assembly, a left tire pressure sensor, a right tire pressure sensor, a left axle load measurer, a right axle load measurer, a left axle ground clearance detector, a right axle ground clearance detector, a gravity centroid sensor, an inter-wheel differential lock and an inter-axle differential lock; the present application acquires corresponding vehicle state data of the vehicle through the left tire pressure sensor, the right tire pressure sensor, the gravity centroid sensor, the left axle load measurer, the right axle load measurer, the left axle ground clearance detector and the right axle ground clearance detector; in addition, the present application increases the tire-ground contact ratio by deflating the tire, reduces the tire rolling radius to increase the driving force of the vehicle, and engages the inter-axle differential lock and the inter-wheel differential lock, thereby effectively helping the vehicle to drive out of the sunken road surface in the desert.
Owner:SINOTRUK GRP JINAN SPECIAL VEHICLE CO LTD

A kind of saline-alkali soil experimental cultivation device

The application relates to a kind of salt alkali land experimental ploughing devices, belong to agricultural equipment technical field.A kind of salt alkali land experimental ploughing device includes mounting bracket, drive mechanism, harrowing assembly and first elastic member.Drive mechanism is arranged in mounting bracket, drive mechanism has multiple first protrusions protruding from the outer circumferential side of drive mechanism.Harrowing assembly is coaxially rotatably sleeved outside drive mechanism, and harrowing assembly has multiple second protrusions protruding from the inner circumferential side of harrowing assembly.Multiple first protrusions and multiple second protrusions are sequentially spaced along the circumference of drive mechanism. Along the circumference of drive mechanism, first elastic member is located between first protrusion and second protrusion, and the two ends of first elastic member respectively abut against first protrusion and second protrusion. Drive mechanism rotates around rotation axis to compress first elastic member and drive harrowing assembly to rotate.
Owner:SHANGHAI ACAD OF AGRI SCI

Lens driving device

PendingCN122043839ASmall installation sizeGreat driving forcePrintersProjectorsMaterials scienceMagnet
The invention belongs to the technical field of optical imaging equipment, and particularly relates to a lens driving device which comprises a base, a support, a frame and a carrier. A first direction coil and a second direction coil are respectively arranged on the base; the frame is arranged on the support, a first-direction magnet is arranged on one side of the bottom end of the frame, and after the first-direction coil is powered on, the frame and the carrier can move in the first direction relative to the support; the support is arranged on the base, a second-direction magnet is arranged on one side of the bottom end of the support, and after the second-direction coil is powered on, the support, the frame and the carrier can move in the second direction relative to the base. According to the invention, the power supply of the OIS coil is directly supplied by the built-in circuit of the base, the power supply wiring difficulty is reduced, and when the carrier moves in the first direction, the thrust of the OIS anti-shake action required by the carrier is smaller, so that the installation size of the magnet can be obviously reduced or the thrust of the OIS anti-shake action can be increased, and the lens can realize a larger-angle anti-shake effect in the first direction.
Owner:HENAN HOZEL ELECTRONICS CO LTD KUNSHAN BRANCH OFFICE

Sound production monomer and sound production module

The utility model discloses a sounding monomer and a sounding module, and relates to the technical field of sound energy conversion, the sounding monomer comprises a magnetic conductive yoke and a magnetic circuit unit arranged on the magnetic conductive yoke, the magnetic circuit unit comprises a central magnetic circuit and a side magnetic circuit arranged on the periphery of the central magnetic circuit, the central magnetic circuit and the side magnetic circuits are arranged at intervals and a magnetic gap is formed therebetween; the vibration system comprises a vibrating diaphragm, a voice coil and a magnetic piece arranged on the voice coil, the voice coil is located in the magnetic gap, one side of the voice coil is connected with the vibrating diaphragm, the other side of the voice coil is connected with the magnetic piece, the magnetic conductive yoke is provided with an avoiding hole used for avoiding the magnetic piece, and the magnetic gap is communicated with the avoiding hole; the magnetic piece can provide acting force opposite to the restoring force of the vibrating diaphragm for the voice coil; the driving force of the voice coil to the vibrating diaphragm is effectively increased, and the performance of the sounding monomer is improved.
Owner:GOERTEK INC

A method and apparatus for the continuous production of artificial muscle fibers

PendingCN122503986AAchieve continuous high twistachieve preparation
The application provides a continuous preparation method of artificial muscle fiber and a device used in the method. The device comprises a wire releasing unit for independently releasing original fibers, a guiding unit for gathering the original fibers into ply fibers, a twisting unit for twisting the ply fibers into twisted fibers, and a wire collecting unit for collecting the twisted fibers; and further comprises a tension monitoring unit for detecting a tension value, a merging point monitoring unit for detecting a merging point position of the fibers, and a master control unit for adjusting wire releasing parameters to maintain the tension value within a preset tension interval, and for adjusting a matching relationship between the rotating speed of the twisting unit and the wire collecting unit to maintain the merging point position within a preset area. The application provides a device suitable for continuously twisting a plurality of fibers under closed-loop tension control, which can realize continuous high-twist plying of the plurality of fibers, further insert twisted fibers with high twist to form a plurality of yarn artificial muscle fibers with a spiral structure, so as to realize preparation of an artificial muscle fiber bundle and increase driving force.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI +1

Wheel-track composite omnidirectional mobile platform

PendingCN122232757AGreat driving forcepass smoothlyMotor depositionEndless track vehicles
This invention belongs to the field of automated mobile platform technology, specifically a wheeled-tracked composite omnidirectional mobile platform. Four swing arms are symmetrically mounted on the vehicle body, with the left and right swing arms structurally mirror-image. Four Mecanum wheels on the four swing arms are diagonally mounted. The rotation of the tracked drive wheels and Mecanum wheels, as well as the pitching motion of the swing arms, are achieved through a drive system mounted on them and a pitching system within the vehicle body. The mobile platform can switch between tracked, omnidirectional wheeled, and legged movement modes through the pitching motion of the four swing arms. The drive motors of the drive system are installed inside the Mecanum wheels, resulting in a relatively smaller vehicle body size and increased space utilization of the entire robotic mobile platform. This invention provides a mobile platform for robotic patrol and reconnaissance work, particularly suitable for various complex unstructured environments, and features modularity, compactness, flexible movement, and wide adaptability.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Sweeping machine

ActiveCN224639652Ueliminate tiltImprove work efficiency
The application specifically relates to the technical field of household appliances, and particularly relates to a sweeper, which comprises a base provided with a rolling brush cavity and a battery cavity on a side close to the ground, the rolling brush cavity and the battery cavity are adjacently arranged along a first direction; a rolling brush mechanism is movably installed in the rolling brush cavity; an installation cavity is arranged on a side of the base far from the ground and between the rolling brush cavity and the battery cavity; the installation cavity is in communication with the rolling brush cavity; a driving mechanism is arranged in the installation cavity; a driving end of the driving mechanism extends into the rolling brush cavity and is connected with the rolling brush mechanism; under the driving effect of the driving mechanism, the rolling brush mechanism moves along a third direction. The driving mechanism is directly arranged in the installation cavity, the space of the base is fully utilized, the space utilization rate is improved, and the overall volume of the transmission mechanism can be reduced. The volume of the driving motor and the transmission mechanism is large, the compact layout of the sweeper in the longitudinal height can be reduced, and the thickness of the sweeper can be controlled within a certain range.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Lens drive device

PendingCN122085472AGreat driving forcereduce thrust
This invention belongs to the field of optical imaging equipment technology, specifically relating to a lens driving device, including a base, a frame, a carrier, and a circuit board. An AF position sensor is disposed on the outer wall of the frame and cooperates with an AF magnet disposed on the base to monitor the movement position in a third direction. The circuit board is disposed on the frame and located below the carrier. Two OIS position sensors are disposed on the circuit board and cooperate with two OIS magnets disposed on the carrier to monitor the movement position in a first direction and a second direction, respectively. An elastic connection portion is disposed on one side of the circuit board. One end of the elastic connection portion is connected to the base and electrically connected to the base's internal wiring or an external circuit. The monitoring signals from the two OIS position sensors and the AF position sensor are all output through the elastic connection portion. In this invention, the monitoring signals from all three position sensors are output through the elastic connection portion of the circuit board, facilitating position monitoring.
Owner:河南皓泽电子股份有限公司昆山分公司

Bone conduction vibrator and electronic device

ActiveCN224356250USmall stiffness coefficientGreat driving forceElectrical transducers
This utility model discloses a bone conduction vibrator and electronic device, relating to the field of acoustic technology. The bone conduction vibrator includes a housing assembly, a permanent magnet circuit system, two coils, a magnetic guide plate assembly, and a reset assembly. The permanent magnet circuit system is disposed within the housing assembly and includes an iron edge assembly and two sets of magnet assemblies. Each set of magnet assemblies includes two magnets with opposite poles. The two coils are disposed within the housing assembly and are located on opposite sides of the permanent magnet circuit system. The magnetic guide plate assembly includes two magnetic guide plates that pass through the two coils and extend between the two magnets of the magnet assembly. The adjacent ends of the two magnetic guide plates are not directly magnetically connected. The reset assembly is connected between the magnetic guide plate assembly and the permanent magnet circuit system and includes a spring for providing elasticity. The spring has a suspended portion disposed opposite to the coil. The effective width of the suspended portion of at least part of the spring is smaller than its width, which helps to reduce the spring stiffness coefficient and improve the low-frequency effect.
Owner:ZHONGKE SOUND TEMEI (SUZHOU) ACOUSTICS TECH CO LTD

Robotic arm, robot, control method and control device

The application provides a mechanical arm, a robot, a control method and a control device, and belongs to the technical field of robots. The mechanical arm comprises a shoulder module, an elbow module, a wrist module and an execution module; the shoulder module comprises a first driving assembly and a second driving assembly, the first driving assembly is used for driving a first degree of freedom of rotation of the rest of the shoulder module relative to a base piece, and the second driving assembly is used for driving a second degree of freedom and a third degree of freedom of rotation of the elbow module relative to the shoulder module; the elbow module comprises a third driving assembly, the third driving assembly is used for driving a fourth degree of freedom and a fifth degree of freedom of rotation of the wrist module relative to the elbow module; and the wrist module comprises a fourth driving assembly, the fourth driving assembly is used for driving a sixth degree of freedom and a seventh degree of freedom of rotation of the execution module relative to the wrist module. The mechanical arm of the application can realize seven degrees of freedom movement, has better flexibility, and can meet the work requirements of various different scenes.
Owner:TENCENT TECHNOLOGY (SHENZHEN) CO LTD

A method for preparing sodium glutamate directly from glutamic acid fermentation broth by cation displacement dialysis

ActiveCN117820147BIncrease migration fluxGreat driving forceMonosodium glutamateAqueous solution
The present application relates to monosodium glutamate clean production technology field, specifically to a kind of method for preparing sodium glutamate directly from glutamic acid fermentation liquor using cation replacement dialysis, the method comprises: glutamic acid fermentation liquor is passed into cation replacement dialysis device and sodium ion aqueous solution carry out ammonium ion and sodium ion cation replacement dialysis, finally obtain sodium glutamate and ammonia water or ammonium salt, wherein, the main component of glutamic acid fermentation liquor is ammonium glutamate.The method can realize the direct conversion from ammonium glutamate to sodium glutamate, and the method has the advantages of few process steps, simple flow, environment-friendly and low energy consumption.
Owner:INSTITUTE OF PROCESS ENGINEERING CHINESE ACADEMY OF SCIENCES

Inching type flow adjusting device

The utility model discloses an inching type flow regulating device, which comprises a hydraulic control valve, a flow regulating valve and a flow regulating valve, the first electromagnetic valve is connected with the liquid inlet end of the first proportional valve and a control cavity on one side of the hydraulic control valve, and the liquid outlet end of the first proportional valve is connected with the liquid inlet end on one side of the hydraulic control valve through a pipeline; the second electromagnetic valve is connected with the liquid inlet end of the second proportional valve and a control cavity on the other side of the hydraulic control valve, and the liquid outlet end of the second proportional valve is connected with the liquid inlet end on the other side of the hydraulic control valve through a pipeline; two liquid outlet ends of the hydraulic control valve are respectively connected to the controlled valves through pipelines; a first piston and a second piston are respectively arranged in the first proportional valve and the second proportional valve; the bottom of the first piston is connected with a first spring, and the bottom of the second piston is connected with a second spring. Mounting cylinders are arranged at the bottom ends of the first proportional valve and the second proportional valve, sealing plugs are in threaded connection with the interiors of the mounting cylinders, and stop columns are fixed to the sealing plugs. The problems that in the prior art, a common driving mode is poor in control precision, low in reliability and small in driving force are solved.
Owner:SHAANXI KONGTIAN POWER RES INST CO LTD

Earthquake-temperature self-adaptive viscous damper with large bearing capacity and simulation calculation method

ActiveCN121723560BReduce technical riskEnsure design safetyGeometric CADDesign optimisation/simulationElement modelVirtual displacement
The present application relates to the technical field of finite element simulation analysis, and specifically discloses a large bearing capacity earthquake-temperature self-adaptive viscous damper and a simulation calculation method, which comprises the following steps: S1: establishing a three-dimensional solid model of a temperature deformation joint and a viscous damper with a stiffness adjusting valve; S2: obtaining a finite element model of the three-dimensional solid model; S3: obtaining a critical speed and a load working condition speed of the viscous damper, and establishing a multi-state self-adaptive stiffness adjusting model of the viscous damper based on the ratio of the load working condition speed to the critical speed; S4: obtaining a time difference value of the stiffness adjusting valve from the start of closing to the complete closing, and establishing a virtual displacement quantification model; S5: adding the multi-state self-adaptive stiffness adjusting model and the virtual displacement quantification model to the finite element model; and S6: performing mechanical simulation analysis on the finite element model. The present application can accurately simulate the complex mechanical behavior of the damper under the conditions of multi-state switching, virtual displacement effect and bidirectional earthquake reciprocating action.
Owner:CHONGQING UNIV +1

Telescopic transverse folding airfoil and unfolding and locking mechanism

ActiveCN121990156AReduce outer envelopereduce closureCosmonautic vehiclesAircraft controlFlight vehicleMechanical engineering
The invention discloses a telescopic transverse folding airfoil and an unfolding and locking mechanism, and relates to the technical field of aerospace. The airfoil specifically comprises an airfoil body, the airfoil body comprises a first airfoil and a second airfoil, the first airfoil is rotationally matched with the second airfoil through a torsion bar assembly, when the airfoil body is unfolded, the side face of the second airfoil is flush with the side face of the first airfoil, and when the airfoil body is folded, the second airfoil is perpendicular to the first airfoil; the telescopic end of the unfolding locking mechanism is connected with the bottom of the first wing surface; the baffle assembly is arranged on the outer side of the telescopic end of the unfolding locking mechanism in a sleeving mode and makes contact with the bottom of the first wing face. The first airfoil and the second airfoil are transverse folding airfoils, the airfoil body is folded in the circumferential direction of the aircraft, the space outside the aircraft is reasonably utilized, and the appearance envelope of the airfoil body is further reduced when the aircraft is loaded.
Owner:BEIJING MECHANICAL EQUIP INST +1

Compressor with movable connecting rod

The invention relates to a movable connecting rod compressor which is mainly composed of a left novel movable connecting rod front portion, a movable connecting pin, a left novel movable connecting rod rear portion, a right novel movable connecting rod, a swing rod, a swing rod installation structure and the like. The problem that abrasion is difficult to eradicate due to the poor lubricating condition of the crosshead pin is solved, a threaded connection structure is replaced with the movable connecting pin technology, the problem that stress of threads at the end of a piston rod is seriously concentrated inevitably is solved, the problem of fatigue crack damage of the threaded connection position is solved, energy is saved, and the service life of a compressor is prolonged. And the significant progress of the compressor technology is achieved.
Owner:罗戏花 +1

A composite rod magneto-electro-mechanical antenna and its fabrication method

This invention proposes a composite rod-type magneto-electro-mechanical antenna and its fabrication method, belonging to the field of mechanical antenna technology. It solves the problems of low power capacity, weak radiation capability, and short communication distance commonly found in existing magneto-electro-mechanical antennas. It comprises a magnetostrictive layer, two transition layers, two sets of driving layers, and two sets of tail mass blocks. The magnetostrictive layer is located at the center, with the transition layer, driving layer, and tail mass blocks arranged sequentially from the center to both ends on either side. Each driving layer is composed of multiple piezoelectric ceramic rings and multiple electrode sheets stacked alternately. Each tail mass block consists of mass block one, a disc spring, and mass block two connected sequentially. The length of this composite rod-type magneto-electro-mechanical antenna is comparable to that of a traditional three-layer magneto-electro-electric antenna. When the antenna adopts the first-order longitudinal mode, it can operate in the very low frequency band. Depending on different application requirements, the composite rod-type magneto-electro-mechanical antenna of this invention can adopt the second-order longitudinal mode or operate in other frequency bands.
Owner:QINGDAO INNOVATION & DEV CENT OF HARBIN ENG UNIV

Low cost, multi-scale twinning coordinated deformation superplasticity in medium-heavy alloys and method of making same

PendingCN122326991AGreat driving forceMany nucleation pointsMetallic materialsIngot
This invention belongs to the field of advanced metallic materials and powder metallurgy technology, specifically relating to a low-cost, multi-scale twinned synergistic deformation superplastic medium-heavy alloy and its preparation method. The preparation method includes melting the medium-heavy alloy using vacuum induction melting technology, then casting the molten medium-heavy alloy into an ingot and machining electrodes; preparing the electrodes into powder of a predetermined particle size; loading the powder into a casing, and after compaction, heating and degassing the casing until the required vacuum level is met, followed by sealing the casing; hot isostatic pressing of the sealed casing, and finally machining to remove the casing, yielding the superplastic medium-heavy alloy material. The superplastic medium-heavy alloy material prepared by this invention possesses multi-scale twins and an FCC matrix, with the FCC matrix accounting for more than 95% of the alloy, both ensuring good plasticity of the medium-heavy alloy material.
Owner:SINO EURO MATERIALS TECH OF XIAN CO LTD

Magnetizing permanent magnet assembly device and assembly method

ActiveCN116237725BGreat driving forceImprove repeatability efficiencyMechanical engineeringPhysics
The application provides a magnetized permanent magnet assembling device and assembling method, comprising a permanent magnet suspension track unit, the assembling device further comprises a top plate, a plurality of positioning strips and a feeding mechanism, one end of the permanent magnet suspension track unit is provided with a top plate capable of moving left and right, the top plate is provided with at least one groove and a stop block, a plurality of positioning strips are arranged in the permanent magnet suspension track unit, part of the positioning strips in the corresponding position of the groove can pass through the groove, and the other part of the positioning strips is limited in the permanent magnet suspension track unit through the stop block, the permanent magnet suspension track unit is provided with a feeding area at the other end in the length direction, the feeding area is provided with a permanent magnet, and the feeding mechanism pushes the permanent magnet into the channel. The application provides a magnetized permanent magnet assembling device and assembling method, which replaces the defects of manual assembly in the prior art, realizes automatic assembly, is high in working efficiency, and is more reliable and stable than manual work.
Owner:GANZHOU FORTUNE ELECTRONICS

Power transmission and steering connecting structure of tractor transport unit

The utility model discloses a kind of power transmission and steering connecting structure of tractor transport unit, including traction outer frame, traction inner frame, fork type drawbar, double ball cage constant velocity universal joint, transmission shaft, drawbar sleeve, double cross universal joint, transmission assembly and transmission shaft universal joint, fork type drawbar includes fork type end and drawbar, the traction outer frame is hinged with traction inner frame, and is connected with tractor head's transmission case, the traction inner frame is hinged with the fork type end of fork type drawbar, double ball cage constant velocity universal joint is installed in the cavity formed by traction inner frame and fork type end, between the transmission shaft and transmission assembly is connected by double cross universal joint. The utility model passes through using double ball cage constant velocity universal joint, can make tractor group more safe when turning angle is larger;By increasing shift mechanism, tractor group can have greater driving force.
Owner:CHENGDU JIYOU AGRI MASCH CO LTD

Slewing device driven by double hydraulic cylinders

A slewing device driven by double hydraulic cylinders relates to the technical field of engineering machinery and comprises a rack, a slewing bearing is mounted on the rack, a rotary table is mounted on the slewing bearing, hinge seats are mounted on the left side and the right side of the rotary table, a fixed hinge seat is mounted at the top of the rack, and a driving oil cylinder is mounted on the fixed hinge seat in a hinged manner. The slewing device driven by the double hydraulic cylinders is large in driving force, higher in impact bearing capacity and more stable in cantilever crane slewing, the phenomenon that the cantilever crane shakes due to factors such as scale side gaps and impact is reduced, and the slewing device driven by the double hydraulic cylinders is more stable in cantilever crane slewing. And the structure is simple, the maintenance is easy, and the damage risk is reduced.
Owner:HENAN GENGLI ENG EQUIP CO LTD

Mixer truck with concrete slump detection device

The invention discloses an agitating lorry with a concrete slump detection device, and relates to the technical field of concrete detection, the agitating lorry comprises a cylinder, the whole body is of a split structure, the cylinder comprises a plurality of same sub-cylinder parts which are distributed in a surrounding manner, and every two adjacent sub-cylinder parts are in sealed connection through a connecting part; an elastic interlayer covers the inner wall of each sub-cylinder part, a closed cavity is formed between the elastic interlayer and the inner wall of the corresponding sub-cylinder part, gas is injected into or discharged from the closed cavity, and the elastic interlayer can expand and protrude out of the plane of the inner wall of the sub-cylinder part or contract and cling to the inner wall of the sub-cylinder part; the bottom end of each sub-cylinder part can swing outwards relative to the top of the sub-cylinder part so that the cylinder body can be diverged and expanded from the bottom, and locking assemblies in one-to-one correspondence with the sub-cylinder parts are arranged on the periphery of the bottom of the cylinder body and used for limiting the swing action of the sub-cylinder parts. The concrete slump test device has the effect of improving the accuracy of the concrete slump test result.
Owner:HUBEI STONE SPECIAL VEHICLE CO LTD

Power-level two-way hydraulic control main valve

The invention relates to the technical field of valves, in particular to a power-level two-way hydraulic control main valve which comprises a main valve body, a valve sleeve is arranged in the main valve body, a valve element is arranged in the valve sleeve, the valve element is connected with a two-way hydraulic control device, the two-way hydraulic control device controls the valve element to act, the valve is controlled through high-pressure oil, and the valve is stable in state and good in anti-seismic effect. The action speed of the valve can be controlled, the valve is driven to act through high-pressure oil under the small driving power of the electromagnetic valve, then the driving force of the valve is increased, and the corresponding speed of the valve is increased.
Owner:河南航天流体控制技术有限公司

Method for producing a composite dielectric elastomer membrane and dielectric elastomer membrane actuator

The application provides a preparation method of a composite dielectric elastomer film and a dielectric elastomer film actuator. The preparation method comprises the following steps: step 1: mixing BTRU@CDs giant electro-rheological particles with an electro-rheological liquid dispersion phase to obtain a suspension; step 2: uniformly mixing silicone rubber with the suspension to obtain a composite dielectric elastomer prepolymer, wherein the mass ratio of the silicone rubber to the suspension is 15:1 to 1:1, and the mass ratio of the BTRU@CDs giant electro-rheological particles in the composite dielectric elastomer prepolymer is 5-40%; and step 3: film forming is performed on the composite dielectric elastomer prepolymer to obtain a composite dielectric elastomer film. The composite dielectric elastomer film prepared by the preparation method of the composite dielectric elastomer film has better actuating performance, better mechanical performance and better cycle stability than traditional rubber elastomers. The problems of high driving voltage, large pre-stretching ratio, limited actuating strain, poor fatigue resistance and easy breakdown of existing dielectric elastomer materials are solved.
Owner:SHANGHAI UNIV +1

Vibration sound production device and electronic equipment

The invention discloses a vibration sound production device and electronic equipment, and relates to the technical field of electroacoustic transduction, and a first vibration system and a second vibration system of the vibration sound production device are located at two sides of a magnetic circuit system along a first direction. A common magnetic part, two side magnetic parts and two central magnetic parts of the magnetic circuit system extend along a second direction perpendicular to the first direction, the first vibration system vibrates along the first direction, two voice coils of the first vibration system are arranged in parallel and are connected with the diaphragm assembly, and the second vibration system vibrates along a third direction perpendicular to the first direction and the second direction and is connected with the diaphragm assembly. The two long sides of a driving coil of the second vibration system are arranged corresponding to the two center magnetic parts respectively, the two side magnetic parts and the two center magnetic parts are magnetized in the first direction, the magnetizing directions are opposite, and the common magnetic part is magnetized in the third direction. According to the vibration sound production device, the loudspeaker and the motor are integrated, so that the integration level is improved, and the occupied space in electronic equipment is saved.
Owner:GOERTEK INC