23results about How to "Increase thrust" patented technology

The invention relates to a cooling structure for an ultraprecise linear motor and belongs to the technical field of linear motors. The cooling structure solves the problem of proneness to heat exchange with environment caused by high side temperature of two-side surface-mounted cooling structures of existing linear motors. The cooling structure comprises a winding supporting portion, a winding and a heat conductive portion, wherein the winding is fixed on the surface of the winding supporting portion, the heat conductive portion is arranged on the surface on the outer side and fixedly connected with the winding supporting portion, the heat conductive portion is a copper foil ring which fits the outer profile of the winding and is sleeved and fixed on the surface on the outer side of the winding, or the heat conductive portion is a copper foil heat conductive ring formed by arraying multiple copper foil sections in a dispersed manner, the copper coil heat conductive ring fits the outer profile of the winding, and each copper coil section is fixed on the surface on the outer side of the winding. The cooling structure for the ultraprecise linear motor is suitable for cooling of linear motors.

The utility model provides an LED lamp bead and a display module, and the LED lamp bead comprises a light-emitting chip, a connecting column, a lamp base and a wire. The external threads arranged on the side wall of the periphery of the connecting column of the LED lamp bead can be matched with the mounting holes, with the internal threads, of the substrate or other mounting carriers, and compared with traditional welding connection, the threaded connection structure can remarkably improve the bonding strength between the LED lamp bead and the substrate or other mounting carriers. When the LED lamp bead is subjected to external vibration or impact, the threaded connection structure can provide larger pulling resistance through the threaded connection matching effect so as to enhance the thrust of the LED lamp bead, the service life of the LED lamp bead is effectively prolonged, and the working stability of the LED lamp bead is effectively improved.

The invention provides a ducted thruster thrust testing device and testing method. The thrust testing device comprises an air duct type mounting base, an axial linear moving platform, a ducted fan, an air inlet pipe, an air outlet pipe, an auxiliary fan and a pull pressure sensor assembly. The ducted fan comprises a ducted shell and a core assembly, the core assembly comprises a supporting guide vane, an impeller and a motor assembly, a linear cylindrical guide rail assembly is arranged between the supporting guide vane and the ducted shell, and the thrust value of the core assembly can be independently measured through the arrangement of the linear cylindrical guide rail assembly. The thrust value of the core assembly is compared with the overall thrust value of the ducted fan, and the influence of the ducted shell on the thrust is evaluated; if the overall thrust value is larger than the thrust value of the core assembly, it is indicated that the thrust of the ducted shell is increased; if the overall thrust value is smaller than the thrust value of the core assembly, it shows that the duct shell causes energy loss.

The present application relates to a method for cooperative control of a single propeller of an underwater snake robot based on reinforcement learning, comprising establishing a structural model of the underwater snake robot, constructing a motion control and decision model of the underwater snake robot, defining state space and action space, and integrating the multi-joint wave propulsion of the snake body and the thrust output of the tail propeller from the central pattern generator into the control decision framework, designing a composite reward function with path tracking error, heading deviation and propulsion efficiency as targets, training the motion control and decision model of the underwater snake robot based on a reinforcement learning algorithm, generating an optimal underwater snake robot cooperative control strategy to execute a multi-waypoint path tracking task of the underwater snake robot, so that the cooperative control strategy of the joint waveform parameters and the propeller thrust is autonomously learned without relying on an accurate hydrodynamic model, thereby realizing stable and high-precision path tracking of a hyper-redundant underwater snake robot under multi-path constraints including turning sections.

This utility model discloses a boxed filter rod sorting device, including a needle sleeve with a picking chamber, a picking needle disposed within the picking chamber, and an air blowing assembly surrounding the needle sleeve. The needle sleeve has an air guide hole, and the air blowing assembly introduces air into the picking chamber through the air guide hole to push the picking needle to move within the needle sleeve. The picking needle pierces the interior of the filter rod to grasp it. This utility model uses the air blowing assembly to drive the picking needle to pierce the interior of the filter rod to grasp it from the box, thereby ensuring that no non-picking objects are carried away when the grasped filter rod is removed from the box, improving the filter rod sorting efficiency.

The application discloses a kind of automobile parts laser intelligent welding systems, it is related to intelligent welding system technical field, including device shell and the turnover support, buffer intercept mechanism, positioning mechanism, welding mechanism being arranged in device shell;Turnover support, positioning plate is rotationally arranged thereon, and first component, second component to be laser welded are arranged on positioning plate;Buffer intercept mechanism, it drives first component, second component rotation and carries out elastic buffering, deceleration, intercept to rotating first component, second component;Positioning mechanism, it is connected to turnover support and carries out orientation to first component, second component;Welding mechanism, it carries out welding fixed operation to first component, second component.The present application can solve the problem that existing automobile parts welding intelligent welding system is used when component is prone to sudden change of thrust, acceleration effect and occurs shaking, welding place misplacement, the situation that welded position is disconnected, in turn, affects welding quality.

The application discloses a primary-secondary double-side cooperative hybrid excitation linear motor, which comprises a primary mover and a secondary stator, and an electromagnetic air gap is formed between the primary mover and the secondary stator; the primary mover comprises a primary iron core, a primary permanent magnet and a primary armature winding, the primary permanent magnet and the primary armature winding are arranged on the primary iron core; the secondary stator comprises a secondary permanent magnet, a secondary excitation winding and a back iron, the secondary permanent magnet and the secondary excitation winding are arranged on the back iron. Compared with a conventional permanent magnet linear motor, the structure can significantly improve the air gap magnetic flux density under the same excitation current, enhance the overall magnetic field coupling strength of the motor and improve the material utilization, which not only greatly improves the thrust of the motor, but also further improves the suspension stability of the magnetic levitation vehicle. The performance gain is derived from the magnetic circuit superposition effect generated by the double-side cooperative excitation, rather than the traditional simple magnetic circuit regulation mechanism.

This application relates to a multi-pipe chimney, belonging to the field of chimney technology. It includes a flue, with at least two pairs of connecting rods fixedly installed on the inner wall of the flue. A base is fixedly installed inside the flue, and a central rod is installed on the top wall of the base, fixed to the connecting rods. A partition assembly is provided between the central rod and each pair of connecting rods. The partition assembly includes a driving part and a partitioning part, with the partitioning part located between the central rod and the driving part. The driving part drives the partitioning part to unfold, thereby dividing the flue into at least two independent channels. This application has the advantages of wide applicability of the chimney and reduced floor space.

The utility model relates to drilling auxiliary device technical field discloses a kind of electric hammer drilling operation auxiliary devices, including fixed pipe, the outside of fixed pipe is movably sleeved with moving pipe, the top of moving pipe is provided with electric hammer body, further include the drilling auxiliary assembly for the drilling operation auxiliary of the electric hammer body, the mutual cooperation of fixed pipe, electric hammer body, fixed column, rotating plate and linkage plate being used by being set, electric hammer body can be reached the effect of drilling auxiliary operation, the upthrust of electric hammer body is improved by the left and right setting down pressure handle force, compared with the single down pressure handle of prior art, the upthrust of electric hammer body is improved, and left and right stress is balanced, so that moment is symmetrically applied to both sides of fixed pipe, the deformation of fixed pipe is reduced, the lateral rigidity bearing force of fixed pipe is reduced, avoid affecting drilling operation, facilitate some difficult hole drilling operation, facilitate use, more practical.

The application discloses a guide rail embedded type linear motor module, which comprises a guide rail and a sliding block; a groove is arranged on the inner surface of the sliding block and on the two sides of the guide rail, a rolling body raceway made of carbon steel or stainless steel is embedded in the groove, a return hole is arranged in the sliding block, return end covers are fixedly installed on the left and right ends of the sliding block, a rotary groove is arranged in the return end cover, the rolling body raceway, the return hole and the rotary groove form a rolling circulation rotary channel, and a rolling body made of stainless steel is installed in the rolling circulation rotary channel; the return hole is located above the rolling body raceway; a magnetic grating ruler or an optical grating ruler is arranged on the guide rail, and an optical grating reading head is arranged on the sliding block; a linear motor stator is installed on the guide rail, a linear motor rotor corresponding to the linear motor stator is arranged on the sliding block, and the motor rotor is communicated with a power supply. The application ensures that the rolling body does not pass through the magnetic induction line range when rotating, guarantees that the rolling body is not magnetized, and guarantees the smoothness of the rolling body rotation.

The application relates to the field of aerospace technology, in particular to a high-Mach number ramjet engine with an afterburner. The high-Mach number ramjet engine with the afterburner comprises an aircraft body, an engine lower wall surface and an air inlet; the aircraft body is internally provided with a fuel tank; an isolation section, a first combustion chamber and a nozzle section are arranged between the aircraft body and the engine lower wall surface; the side, away from the first combustion chamber, of the isolation section is provided with the air inlet; the high-Mach number ramjet engine with the afterburner further comprises a powder fuel injection assembly and a second combustion chamber; the powder fuel injection assembly is arranged on the aircraft body, and the second combustion chamber is formed between the first combustion chamber and the nozzle section; the powder fuel injection assembly can inject metal fuel into the second combustion chamber; the metal fuel can be subjected to secondary combustion with combustion products in the second combustion chamber; and the energy generated by the secondary combustion is used to improve the thrust of the aircraft.

The invention provides a double-section flapping wing structure capable of independently controlling the folding angle of an outer-section wing and a control method of the double-section flapping wing structure. The flapping wing structure comprises a brushless motor, a planetary reduction gearbox, a fuselage bracket, a crank, a connecting rod, a rocker with a gear, a rotation angle sensor, an inner-section wing rod group, a digital steering engine, a steering engine fixing frame with a limit and an outer-section wing rod group. The independent control of the folding angle of the outer section wing can switch a double-section wing mode into a single-section wing mode by one key, a high-lift and high-load mode in a take-off stage is switched into a high-thrust and high-speed mode in a cruise stage, gliding flight can be carried out in the single-section wing mode, and more bionic, flexible and efficient flight is realized. The aircraft disclosed by the invention has the characteristics of bionic flight attitude, strong visual confusion, low flight noise and high efficiency, can be used in task scenes such as outdoor close-range reconnaissance, high-altitude long-endurance monitoring and reconnaissance, close-range camera shooting when wild birds fly and the like, and has important significance and value in the future.

The invention provides a propeller blade and a ship propeller, relates to the technical field of propellers, and solves the problems that the working efficiency of the propeller blade is reduced, the energy consumption of a ship engine is increased by increasing the length of the propeller blade to improve the efficiency, and the collision risk is high. The propeller blade comprises a small blade structure and a blade body with an upstream blade surface and a blade following edge, the small blade structure is only fixedly arranged at the blade tip end of the blade body, or the small blade structure is only fixedly arranged at the blade tip end of the blade body and a connecting section of the blade following edge and the blade tip end; the small paddle structures extend in the direction away from the water facing blade surface; a non-zero included angle is formed between the upstream face of the small paddle structure and the upstream surface of the paddle body, so that a container structure for containing water flow is formed. Water flow is held under the action of centrifugal force and is fully accelerated in the container structure, and under the condition that the size of the propeller is kept unchanged, the propelling efficiency is effectively improved, the energy consumption is reduced, and the risk of colliding with underwater obstacles is reduced.

The utility model discloses an all-in-one LED display structure, which relates to the technical field of LED display and comprises a connecting plate, a plurality of display units symmetrically arranged at two ends of the connecting plate, a fixing seat connected with the connecting plate, and four pins symmetrically arranged on two sides of the connecting plate. The push force between the pins and the circuit board can be improved, the stability of connection between the LED display unit and the circuit board is enhanced, the circuit connection mode is simplified, independent work and convenient replacement of the LED display unit are achieved, and the use and maintenance cost is reduced.

The unmanned sailboat wing sail with the telescopic and windward area changing functions comprises a fixed sailboard, a movable sailboard, a linear driving module, an opening and closing blade and a blade adjusting mechanism, the fixed sailboard and the movable sailboard are hollow wing-shaped boards, and the movable sailboard is vertically arranged on the inner side of the fixed sailboard in a sliding mode. The linear driving module drives the movable sailboard to ascend or descend, so that the movable sailboard extends out of or retracts into the inner side of the fixed sailboard. A square window is formed in the movable sailboard, and the multiple opening and closing blades are sequentially arranged on the inner side of the square window from top to bottom and are in running fit with the movable sailboard. The blade adjusting mechanism drives the opening and closing blades to rotate synchronously in the same direction, so that the square window is opened or closed. The height and the windward area of the wing sail are adjusted by introducing the structure of the liftable movable sailboards and the opening and closing blades, so that different wind speeds, sea conditions and sailing requirements are met, the sailing performance of the unmanned sailboat is optimized, the sailing thrust is precisely controlled, and the stability and the safety are improved.

This utility model provides a marine monitoring buoy with controllable sail movement, relating to the field of monitoring buoy technology. It includes: a lower compartment; a rotating shaft, vertically arranged and rotatably connected to the lower compartment at its lower end; three sails, each fixedly connected to the rotating shaft and evenly spaced around it, each sail equipped with a wind sensor; a motor located within the lower compartment and connected to the rotating shaft; and a processor located within the lower compartment, connected to the wind sensors and the motor to obtain the current wind direction and control the motor to rotate the rotating shaft, thereby rotating each sail so that each sail forms a set angle with the current wind direction. The processor controls the motor to drive each sail to rotate, changing the direction of the wind force and generating a specific thrust to move the lower compartment along the direction required to reach the target position, thus solving the problem of the buoy's inability to control its movement direction.

This utility model relates to the field of oil extraction, specifically to a sealing and isolating device; it includes an upper connecting unit, a desealing unit, a sealing unit, a lower connecting unit, and an anti-backflow unit; one end of the desealing unit is connected to the upper connecting unit, and the other end is connected to the sealing unit; the sealing unit is connected to both the lower connecting unit and the anti-backflow unit; and the lower connecting unit is connected to the anti-backflow unit. This device has a reasonable structure and is easy to operate. It greatly simplifies the construction process for renovating old wells in oil fields, reduces labor intensity, lowers operational risks, and reduces construction costs.

The utility model belongs to the technical field of optical reflector assembly accessories, and provides an optical reflector supporting structure which comprises a tool base and a reflector support. A mounting groove is formed in the middle of the tool base, a reflecting mirror support is inserted into the mounting groove, a reflecting mirror is arranged at the top of the reflecting mirror support, and a filling gap is reserved between the reflecting mirror support and the reflecting mirror; the reflector support is of an inverted U-shaped structure, and the shape of the mounting groove is matched with the shape of the reflector support. The filling gap is filled with UV glue; the area of a point is improved into the area of a surface, so that the bonding area of the UV glue is effectively increased; the point curing area is improved into the surface curing area, so that the ultraviolet irradiation area is effectively increased; the bonding area of the two points is optimized and improved to be the bonding area of the whole face, and the overall thrust is effectively improved by 2.5 times.

The invention discloses a high-thrust ion thruster integrating an emitting electrode and a receiving electrode. The high-thrust ion thruster comprises an integrated electrode integrating the emitting electrode and the receiving electrode, an insulating bracket and a high-voltage power supply module, the integrated electrode is arranged on the insulating bracket; according to the ion thruster, the problem that the thrust of the ion thruster is small can be solved.

The utility model discloses a kind of vacuum cavity gate valves of continuous feeding and discharging production, involve vacuum cavity valve technical field.The utility model includes cylinder, the lower portion of cylinder is provided with valve cavity, the output end of cylinder is installed with valve block, one group of valve link assembly is arranged in the both sides of valve block, two groups of valve link assembly are installed with sealing plate, the distance of sealing plate and valve block is adjustable;The both sides of valve cavity bottom are provided with guide assembly, limit block is installed in the bottom of valve cavity, limit bearing is installed in the both sides of limit block, sealing plate is located when bottom and limit bearing rolling connection in lowest position;Valve cavity is close to the side of sealing plate and is provided with vacuum cavity butt joint O ring, vacuum cavity butt joint O ring middle part is provided with vacuum cavity feeding and discharging passageway.The utility model is connected by multiple valve link assembly by valve block and sealing plate, realizes the continuous automatic feeding and discharging control function of valve, and can freely adjust the control of valve opening and closing speed when feeding and discharging.

This invention discloses an engine attitude trajectory control mechanism, relating to the field of attitude trajectory control technology, to solve the problem of difficulty in achieving continuous adjustment of nozzle thrust in existing technologies. The engine attitude trajectory control mechanism of this invention includes a gas passage, a housing, a control component, and a nozzle. The gas passage and the nozzle are connected to the housing. The control component is disposed within the housing and is used to control the area of ​​the nozzle throat. The control component includes a servo motor and a drive gear, with the servo motor connected to the drive gear. This invention enables continuous adjustment of nozzle thrust, has a simple structure, and is easy to operate. The thrust of the nozzle can be effectively controlled by controlling the servo motor.

The invention provides a laser processing system, a processing method and a circuit board assembly. When the laser processing system acts on the circuit board, the first laser beam emitted by the laser source can ablate the covering film layer of the outer ring without generating a carbonization layer, and the second laser beam emitted by the laser source can ablate the covering film layer located in the center without damaging the bottom copper structure, so that the effects of high precision and no generation of the carbonization layer are achieved. According to the circuit board assembly, the bottom of the opening of the circuit board is provided with the groove, and the contact area of the welding flux is increased through the groove, so that the welding strength of the welding flux can be improved, the thrust of the electronic element is improved, and the connection stability between the electronic element and the circuit board is enhanced.