17results about How to "Great driving force" patented technology

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.

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.

This utility model discloses a bending device, comprising: a frame, on which a drive mounting part and a bending part are provided, wherein the number of drive mounting parts is three, and the three drive mounting parts are evenly distributed on the frame, and each drive mounting part is provided with a drive device; and a bending mechanism, the bending mechanism comprising a side plate, a lifting plate, a pressure plate, and a pressure block, wherein the side plate is disposed on the bending part, the lifting plate is disposed on the bending part, the pressure plate is drivenly connected to the drive device, and the pressure block is movably disposed on the pressure plate, the position of the pressure block corresponding to the position of the lifting plate. This utility model can improve the processing range of the bending machine.

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.

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.

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.

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.

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.

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.

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.

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.

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.

This application provides a 550kV vertical structure insulated metal-enclosed switchgear, belonging to the technical field of enclosed switchgear. The technical solution is a 550kV vertical structure insulated metal-enclosed switchgear, including an insulating bushing electrically connected to an isolating grounding switch. A vertical tank for closing resistors is located outside the isolating grounding switch, containing a closing resistor. Two parallel vertical tanks for vacuum interrupters are located outside the closing resistor tank, each containing a 252kV vacuum interrupter, and each 252kV vacuum interrupter is connected in parallel with a capacitor. The moving contacts of the two 252kV vacuum interrupters are connected in series via a connecting conductor. A driving mechanism is located at the bottom of both the closing resistor tank and the vacuum interrupter tank, enabling synchronous opening and closing of the closing resistor and the 252kV vacuum interrupters. The beneficial effect is that it ensures synchronous closing of the 252kV vacuum interrupters connected in series.

The utility model discloses a kind of bone conduction vibrator and electronic equipment, it is related to acoustic technical field, bone conduction vibrator includes shell assembly, permanent magnetic circuit system, two coils, magnetic conductive plate assembly and reset component. Shell assembly is made of magnetic conductive material;Permanent magnetic circuit system is located in shell assembly, permanent magnetic circuit system includes two groups of magnet component and iron component, and each group of magnet component includes two magnets of opposite poles and is arranged;Two coils are located in shell assembly, and two coils are respectively located at the two sides of permanent magnetic circuit system;Magnetic conductive plate assembly includes two magnetic conductive plates respectively and is arranged in two coils;Reset component includes two connecting plates and spring piece connected with permanent magnetic circuit system, connecting plate is connected between spring piece and magnetic conductive plate, and spring piece includes suspended portion between permanent magnetic circuit system and connecting plate, can make full use of the internal space of shell assembly, increase the length of suspended portion of spring piece, to reduce the stiffness coefficient of spring piece, improve low frequency effect.

A high-pressure laser filler wire welding method based on laser power modulation is disclosed. In this method, under a high-pressure environment of not less than 400 kPa, the welding wire is maintained at a predetermined distance from the surface of the object to be welded. A laser with instantaneous power varying in a rectangular wave is used to perform laser filler wire welding on the welding wire, allowing molten droplets to enter the object to be welded and generate a continuous weld. This method utilizes a large instantaneous peak power to rapidly heat the welding wire, forming large-sized molten droplets, increasing the driving force for droplet droplet fall and promoting droplet transfer. Simultaneously, a small instantaneous trough power provides sufficient time for plasma and metal vapor to dissipate, reducing the shielding effect of plasma and metal vapor on the laser beam and promoting the absorption of laser energy by the welding wire in the next cycle. Based on these two aspects, this method can significantly promote droplet transfer in high-pressure environment laser filler wire welding, effectively solving the problem of poor weld continuity in high-pressure environment laser filler wire welding.

The utility model belongs to the technical field of toy gun, especially a leak clamp release mechanism, aiming at the problem that the leak clamp release mechanism of existing M1 garand rifle becomes unstable and is prone to failure after being transplanted to the toy gun due to poor quality of toy gun parts, low machining precision and poor material performance, the following scheme is presented, it includes empty cartridge hanging machine body, pull machine handle connecting rod, leak clamp tenon, ammunition cabin and leak clamp, the empty cartridge hanging machine body includes first arm, second arm and cross bar, the first arm and second arm are located at the right side and left side of ammunition cabin respectively, in the utility model, the thrust of pull machine handle connecting rod is used to drive the leak clamp release mechanism when the empty cartridge is hung, the mechanism driving force is big and the transmission force performance is good, the operation is stable and reliable, the part shape is relatively simple, the small structure on the part is less, so the high material performance and machining quality are not needed.

This invention discloses a linear displacement actuator based on a single-pass shape memory alloy, comprising a housing, within which a movable cam is disposed. An auxiliary spring and a shape memory alloy spring are respectively disposed on opposite sides of the movable cam. Electrode plate I and electrode plate II are respectively disposed at both ends of the shape memory alloy spring. An output rod is connected to the movable cam via rollers. This invention solves the problem of difficulty in achieving high-precision deformation control in existing actuators due to the nonlinear deformation characteristics of shape memory alloys.