124results about How to "High degree of freedom of adjustment" patented technology

A golf club 2 is provided with a head 4, a shaft 6, a grip 8, a head cavity body 10 mounted to the head, a grip cavity body 40 mounted to the grip 8, a head weight 12 attachable to/detachable from the head cavity body 10, and a grip weight 12 attachable to/detachable from the grip cavity body 40. A material of the grip cavity body is a polymer. A material of the head cavity body is a polymer. Preferably, the head weight 12 is attachable to/detachable from the grip cavity body 40. Preferably, the grip weight 12 is attachable to/detachable from the head cavity body 40. Preferably, in the golf club 2, a club mass can be adjusted without substantially changing a club balance.

The invention discloses a fractional-order adaptive inverse fuzzy sliding mode control method for a microgyroscope. The method comprises a step of establishing a dimensionless dynamic equation mathematical model and a reference trajectory model of a microgyroscope system, and a step of constructing an inversion adaption fuzzy sliding mode controller based on a fractional order. According to the method, the real-time tracing of a target by the microgyroscope can be achieved, the robustness of the system is increased, and good performance still can be maintained under the condition of external interference. A fractional order adaptive law is designed based on a fractional order sliding mode surface, a self-adaptive identification method is designed based on a Lyapunov stability criterion, various unknown system parameters of the microgyroscope is estimated in an online way in real time, compared with an integer order, adjustable items are added, and a control effect and a parameter estimation effect are improved. A fuzzy system approaches upper bound values of a parameter uncertainty and an external disturbance total number, through the fuzzy approximation of the upper bound values,switching terms in the sliding mode controller can be continuous, and buffeting can be greatly reduced.

The invention discloses a micro-gyroscope fractional order self-adaptive fuzzy neural inversion terminal sliding mode control method. The method includes the steps of establishing a dimensionless kinetic equation mathematical model and a reference trajectory model of a micro-gyroscope system, and establishing a fractional-order-based inversion terminal sliding mode controller. By means of the method, a micro-gyroscope can track a target in real time, so that errors are converged to zero within limited time; the robustness of the system is enhanced, and good performance is still kept under thecondition that external interference exists; a fractional order adaptive law is designed according to a fractional order terminal sliding mode surface, a self-adaptive identification method is designed on the basis of a Lyapunov stability criterion, and various unknown system parameters of the micro-gyroscope are estimated online in real time; compared with an integer order, adjustable items are added, so that the control effect and the parameter estimation effect are improved.

The invention discloses an automatic clamping and positioning device for a PCB. The automatic clamping and positioning device comprises a U-shaped base and a sliding block. A damping layer is arrangedat the surface of the bottom of the U-shaped base; and a damping spring is arranged inside the damping layer. Telescopic rods are arranged at the surfaces of the sides of the U-shaped base; a slidingblock is arranged at one end of each telescopic rod in a pushing manner; a sliding rail is arranged at the bottom of the sliding block; and sliding pulleys are arranged at one side of the sliding block inside the sliding rail in a sliding manner. According to the invention, the telescopic rods arranged at the two sides of the U-shaped base push the sliding blocks to slide in the sliding rail; andclamping blocks are driven by the sliding blocks to clamp and fix a PCB. Moreover, infrared on-off calibration sensors are used for carrying out automatic on-off calibration; if fine adjustment is needed, rotary knobs are adjusted to screw fine-adjustment screw rods to carry out fine adjustment, so that the adjustment freedom of the PCB is improved substantially and automatic clamping is realized; and the precision of PCB clamping is improved.

The invention discloses a three-dimensional printing apparatus. The three-dimensional printing apparatus comprises a main frame, a discharge printing head and a forming printing bedplate located within the main frame, and further comprises a printing head displacement adjusting mechanism for driving the discharge printing head to move so as to change the position of the discharge printing head; the discharge printing head is provided with a printing head feed end for inputting printing raw materials; a discharge channel communicating with the printing head feed end is arranged in the discharge printing head; a bedplate adjusting cylinder is arranged blow the forming printing bedplate, and comprises a cylinder block, a piston in sliding fit with the cylinder block, and a piston rod connected with the piston; the piston rod of the bedplate adjusting cylinder is above the cylinder block; moreover, the piston rod of the bedplate adjusting cylinder is vertical and the upper end of the piston rod is connected to a bottom surface of the forming printing bedplate. The three-dimensional printing apparatus has the beneficial effects as follows: the structure is reasonable and a large degree of freedom of adjustment is achieved; simultaneously adjustment of relative heights and positions of the discharge printing head can be effectively realized, and a comprehensive adjusting speed and printing efficiency can be improved substantially.

The invention discloses a Bi-LSTM electrical load prediction method based on deep learning, belongs to the technical field of electrical load prediction, and aims to solve the technical problems of low electrical load prediction efficiency and an overfitting phenomenon in the prior art and perform normalization preprocessing on an electrical load data sample. The method comprises: designing a multilayer Bi-LSTM deep neural network; inputting the preprocessed electrical load data into a neural network model for training; and performing reverse normalization processing on the prediction result.The multi-layer Bi-LSTM effectively increases the depth of the model, improves the adjustment freedom degree of electrical load parameters, carries out the extraction of a part of features of the inputted data, and improves the efficiency of a neural network model. In order to prevent overfitting of the training model caused by excessive layers of the network model, dropout is added into the model, and the overfitting phenomenon is reduced.

The invention discloses a fractional order adaptive rapid terminal sliding mode control method of a micro-gyroscope. The method comprises steps of establishing a dimensionless kinetic equation mathematical model and a reference trajectory model of a micro-gyroscope system; and constructing a fractional order-based adaptive rapid terminal sliding mode controller. According to the invention, an objective of real-time tracking of the micro-gyroscope can be achieved; errors can be rapidly converged into zero in the limited time; robustness of the system is enhanced; under the condition that thereis external interference, good performance can be kept; according to a fractional order adaptive rapid terminal sliding mode surface, a fractional order adaptive rule is designed; based on the Lyapunov stability criterion, an adaptive identification method is designed; all kinds of unknown system parameters of the micro-gyroscope are estimated in an online real-time manner; compared with an integer order, adjustable items are added, so control effects and parameter estimation effects are improved; and by use of the adaptive control method, system non-determinacy and parameters of the upper bound of the external disturbance sum are estimated, and automatic tracking of manufacturing errors and external disturbance is achieved.

The invention relates to the technical field of welding, in particular to an arc automatic welding machine. The machine comprises two symmetric cylinder frame bodies, rotating cylinders are arranged in the cylinder frame bodies in a fit manner, the rotating cylinders are rotatably connected with the cylinder frame bodies, the sides, close to each other, of the two rotating cylinders are provided with clamping assemblies, a driving assembly for driving the two rotating cylinders to rotate at the same time is arranged on the bearing plate, one side of the bearing plate is fixedly provided with avertical supporting frame, a transverse arm is fixedly connected to the upper end of the vertical supporting frame, a welding head is arranged on one side of a sliding rail, the welding head is connected with the sliding rail through a vertical moving assembly, the machine can be used for welding operation of arcs and pipelines, according to needs, a welding head is adjusted, the adjusting freedom is higher, the machine can adapt to different conditions, meanwhile, two parts used for welding are rotated synchronously, welding effect is ensured, for a long pipeline, an auxiliary supporting assembly is mounted, auxiliary supporting is carried out on the premise of not affecting the rotation action, the welding effect is ensured, and the deviation appearing in the welding process can be avoided.

This invention provides a method for manufacturing a component for a speaker by papermaking, which is large in freedom of regulation of properties and sound quality and is high in productivity. This method can be realized by adopting a blasting step as a step of defibrating a papermaking material. Alternatively, this method may be realized by comprising a step of mixing a papermaking material with a liquid, a step of size-reducing the material by applying pressure to the mixed liquid provided by the mixing step, passing the pressurized mixed liquid through an orifice, and then allowing the mixed liquid to collide with a vessel wall, and a step of papermaking involving the size-reduced material.

A carrier bar is provided, capable of enabling suitable assembly work of the stay and improving freedom in adjustment of stay assembly position relative to carrier bar, disclosed is a carrier bar having shell formed along longitudinal direction and hollow zones in cross-sectional structure so as to be assembled to stay by using a clamp mechanism having a head and a constricted portion to form a base carrier. Shell has assembly and positioning openings extending toward the longitudinal end of shell by using assembly opening as a basal end and having a terminated end formed by longitudinal end of shell. Assembly opening has an opening width and an opening length into which the head of clamp mechanism is insertable. Positioning opening has an opening width narrower than that of assembly opening, along which the constricted portion is slidable, and an opening length longer than that of assembly opening.

The embodiment of the invention relates to the technical field of electronic product accessories, and provides a mobile phone support which comprises a base, a sleeve, a threaded rod and a clamping plate which are sequentially connected. The sleeve is vertically installed on the upper surface of the base, internal threads matched with the external threads of the threaded rod are arranged on the inner wall face of the sleeve, the lower end of the threaded rod is connected to the sleeve in a screwed mode, the clamping plate is installed at the upper end of the threaded rod, and the clamping plate is used for clamping a mobile phone. According to the mobile phone support, through the rotary connection of the threaded pipe and the sleeve, the up-and-down adjustment of the mobile phone supportin the height direction is realized, the degree of freedom of rotation adjustment of the mobile phone support in the horizontal direction is provided, and the mobile phone support is suitable for various electronic products such as various mobile phones and tablet personal computers. The mobile phone support is high in degree of freedom of adjustment, high in universality, wide in application range, simple in structure and convenient to use.

A speaker diaphragm or a dust cap formed by injection molding a mixture at least containing a resin material and a fiber material. The speaker diaphragm or the dust cap combines the advantages of both a paper diaphragm and a resin diaphragm. The advantage of a paper diaphragm is a large degree of freedom in setting physical properties. The advantages of a resin diaphragm are being excellent in moisture resistance reliability, strength, external appearance, productivity and dimension stability.

A circuit board connecting system is characterized by comprising a circuit board device (9) and a circuit board socket device (8), the circuit board device (9) comprises a first circuit board component (91), a second circuit board component (92), a middle connecting part (90), a third circuit board component (93) and a fourth circuit board component (94) which are sequentially longitudinally connected from the top down, a first thin positioning pin (19) is arranged on the left side of the upper portion of the first circuit board component (91) and horizontally extends along the left direction, the lower end of the first circuit board component (91) is detachably connected to the upper end of the second circuit board component (92), a contact pin set is arranged under the first thin positioning pin (19) on the left side of the first circuit board component (91) and horizontally extends along the left direction, and the extending length of the contact pin set is less than that of the first thin positioning pin (19).

The invention relates to a device of adjusting bypass ratio of a turbofan engine continuously, in particular to a self-driven outer duct contrarotating annular fan blade compressing device. The self-driven outer duct contrarotating annular fan blade compressing device comprises an inner duct of the engine. A duct arranged on the outer side of the inner duct is a third outer duct, two rows of contrarotating members are arranged between an inlet guide vane and a stator vane in the third outer duct, the two rows of contrarotating members are separately upstream rotating members and downstream rotating members, and the upstream rotating members and downstream rotating members are arranged on a duct cartridge receiver of the third outer duct through a turntable bearing, separately. By adoptingthe two rows of contrarotating annular fan structures, the rotating speed of a rotor structure is reduced effectively and the dimension of the third outer duct is decreased effectively on the condition that the pressure ratio and the flow of the third outer duct are the same, so that the noise, the electric power consumption and the design difficulty are reduced, the working range of the turbofanengine is expanded greatly, and a variable cycle advantage of the engine is exerted to a greater extent.

The invention provides a camera and a mobile terminal. The camera comprises a lens and a light ray refracting-reflecting mechanism assembled on the lens; the light ray refracting-reflecting mechanismcomprises a first side and a second side arranged oppositely; a first refracting surface and a first reflecting surface are arranged on the first side of the light ray refracting-reflecting mechanism;the first reflecting surface is arranged in the middle region of the first side; the first refracting surface is arranged around the first reflecting surface; a second refracting surface and a secondreflecting surface are arranged on the second side of the light ray refracting-reflecting mechanism; the second refracting surface is arranged in the middle region of the second side; the second reflecting surface is arranged around the second refracting surface; the second refracting surface faces the lens; and external light ray comes from the first refracting surface to the light ray refracting-reflecting mechanism and goes out of the second refracting surface. By virtue of the light ray refracting-reflecting mechanism, the light ray path propagating direction can be converted from a Z direction into an XY direction, so that a smaller field angle can be obtained under the same camera height condition, thereby improving the telescoping effect of the camera.

The invention discloses a carbon nanotube array thruster, and belongs to the technical field of space propulsion. The carbon nanotube array thruster comprises a carbon nanotube unit array, a metal grid electrode, a power supply, a working medium storage box, a protective layer, a fixing plate and a micro-treatment element, wherein the protective layer comprises a front portion and a rear portion,the middle of the front portion and the middle of the rear portion are connected in a communicating mode, the fixing plate is arranged at the front end of the front half portion, the carbon nanotube unit array is distributed on one side of the fixing plate in an array mode, the working medium storage box is arranged on the other side of the fixing plate, the micro-treatment element and the power supply are arranged above the outer surface of the rear half portion, the metal grid electrode is round and is fixed in the rear half portion of the protective layer, when the thruster works, the carbon nanotube unit array is electrified, an argon working medium enters the carbon nanotube unit array from the working medium storage box through the fixing plate, the micro-treatment element controls the working mode of the carbon nanotube unit array, and controls the potential of the metal grid electrode to correspond to the working mode of the carbon nanotube unit array, so that the two working states are achieved. According to the carbon nanotube array thruster, the performance parameters of the thruster can be precisely adjusted, and the size and the mass of the thruster can be effectivelyreduced.

The invention discloses a touch gesture identification motor speed adjustment method. The method comprises the following steps of S101, performing gesture capture: capturing a gesture action of a userthrough a gesture identification circuit, transmitting a gesture action signal to a main control chip in real time by the gesture identification circuit, and calculating out a motor gear position control signal or a motor rotating speed control signal corresponding to the gesture action signal according to preset logic by the main control chip; and S102, performing motor speed adjustment: controlling a gear position or a rotating speed of a motor in real time according to the motor gear position control signal or the motor rotating speed control signal by the main control chip. The rotating speed and the gear position of the motor are adjusted in a touch way, so that the adjustment is high in degree of freedom, flexible and reliable.

The invention relates to a dual-adjusting type feeding supporting device which comprises a base, a supporting seat and a lifting mechanism. The lifting mechanism comprises a box body, a supporting frame and a conveying mechanism, wherein the supporting frame and the conveying mechanism are arranged in the box body. The supporting seat is fixed to the top face of the box body and driven by the lifting mechanism to ascend and descend. The supporting frame comprises two supporting legs which are movably installed in a crossed mode. One ends of the two supporting legs are both movably installed on the top face of the box body. The other end of the first supporting leg is movably installed on the bottom face of the box body. The other end of the second supporting leg is arranged on a conveying belt of the conveying mechanism and abuts against a limiting block fixed to the conveying belt. A handle is arranged on the limiting block. The supporting frame is provided with a butterfly-shaped locking nut capable of keeping the current state of the supporting frame in a locking mode at the joint of the two supporting legs. At least one positioning pile is fixed to the top face of the box body. The feeding supporting device further comprises at least one stud corresponding to the positioning piles. The supporting seat is positioned above the top face of the box body through the studs, and the distance between the supporting seat and the base is adjusted by rotating the studs.

The invention provides a novel tobacco sheet and a production method thereof. Tobacco stalk and bottom tobacco which are homologous with the tobacco are used as materials, wood pulp or bamboo fiber pulp prepared by a chemical method is not used, miscellaneous gas does not exist, the compatibility is good, and compared with the existing tobacco sheet, the sensor effect, the bulk density, the filling rate, the flammability and the like are all improved; not only is the tobacco sheet quality improved, but also the plasticity is strong, manual regulation can be conducted on physical and chemical indicators according to practical demand, cigarette formulating regulation is high in free degree, and cigarette quality is improved conveniently; the problems that the tobacco sheet production raw materials are in urgent shortage and the tobacco stalk and the bottom tobacco are abandoned are solved, the cost of the tobacco sheet is significantly reduced, and the production method has high economic benefits and a profound social meaning.

The invention provides a tobacco sheet and a production method thereof. Waste tobacco stems, tobacco bifurcations, tobacco ends and bottom tobacco are used as raw materials, tobacco leaves and tobacco skeletons are respectively subjected to NCRMP and high-consistency pulping, then pulp mixing operation is carried out, and coating liquid is prepared through tobacco leaf extraction liquid, so that chemical residues and miscellaneous gas of chemical wood pulp are removed completely, good compatibility is realized, bulk density and flammability are improved, a filling rate is increased, and the quality of the tobacco sheet is improved, therefore, quality stabilization is facilitated; plasticity is high, physical properties and internal chemical indexes of the sheet can be regulated manually according to actual demands, the freedom degree for regulating a cigarette formula is high and improvement of quality of cigarette is facilitated; the problems of shortage of raw materials for producing the tobacco sheet and tobacco stem waste are solved, meanwhile, the cost of the tobacco sheet is reduced greatly and profound social significance and extremely high economic benefits are realized.

The invention discloses an upper crane part of a formwork grabbing and hoisting alignment machine. The upper crane part comprises a base, a big arm hinged to the base, a telescopic boom slidably connected with the big arm, a small arm and a rotating arm. The telescopic boom, the small arm and the rotating arm are sequentially connected end to end. The small arm and the rotating arm are connected through a rotating arm slewing bearing. The plane where the rotating arm slewing bearing is located is kept perpendicular to the plane formed by the small arm and the telescopic boom all the time. Graspers are arranged at the tail end of the rotating arm, and the rotating arm is connected with each grasper through a grasper slewing bearing. The included angle between the slewing center of each grasper and the rotating arm is zero. According to the upper crane part of the formwork grabbing and hoisting alignment machine, the machine has multiple purposes, the labor cost is lowered, work efficiency is improved, and work quality is improved.

The invention discloses an automatic counterglow orientator of a satellite solar array. The automatic counterglow orientator of the satellite solar array comprises a light-shading cantilever beam and the like, wherein an upright column is mounted on a solar array frame; the solar array is rotatably fixed at the lower end of the solar array frame; the light-shading cantilever beam is fixed at the top end of the upright column; three hinges are hinged to each of a first cylindrical hinge shaft, a second cylindrical hinge shaft, a third cylindrical hinge shaft and a fourth cylindrical hinge shaft; the first cylindrical hinge shaft and the second cylindrical hinge shaft are respectively fixed at two ends of the light-shading cantilever beam; and the third cylindrical hinge shaft and the fourth cylindrical hinge shaft are fixed on the solar array. A receiving angel of the satellite solar array to solar energy can be adjusted. The automatic counterglow orientator of the satellite solar array is stable and reliable in structure and high in adjustment degree of freedom.

The invention discloses a positioning and guiding device for neurosurgery diagnosis and treatment. The positioning and guiding device comprises a base, a support, a head fixing device and a support arm, wherein fastening bolts are arranged on two sides of the base; two vertical telescopic arms are fixed at the middle part of the upper surface of the base; the lower surface of the head fixing device is fixed at the tops of the vertical telescopic arms; the head fixing device consists of a head support, screws, rotating handles and clamping plates; the screws are symmetrically arranged on two sides of the head support; one rotating handle is arranged at one end of the outer side of each screw; one clamping plate is arranged at one end of the inner side of each screw; the support is fixed on the upper surface of the base and is arranged on the right side of the head fixing device; a limiting ring is fixed on the upper surface of the support; a sliding sleeve is arranged at the upper part of the limiting ring. The positioning and guiding device for the neurosurgery diagnosis and treatment is simple in structure, more convenient and freer in positioning and guiding, has high adjustability and practicality and is worthy of being popularized.

The invention discloses a camera clamping and object supporting device for binocular vision shooting, comprises a support rod I, a support rod II, a support rod III and a support rod IV, wherein the support rod and the electric push rod are connected with each other through an angle iron, the support rod and the electric push rod are connected with each other through screws, and the rotating rod is connected with an electric motor embedded in the electric push rod through a shaft sleeve. The camera clamping structure is fixed on the support rods II and IV through clips, and the two ends of thelead screw guide rails are respectively fixed on the ends of the clips. The sliding table is connected with a roller screw, the camera is connected with a camera sleeve, the camera sleeve is connected with a camera clamping bracket, the motor is connected with the camera sleeve through a hole in the camera clamping bracket, and the camera clamping bracket is connected with a motor embedded in thesliding table. The invention can realize the movement of the photographed object along the horizontal and vertical directions, as well as the adjustment of the rotation and the pitch angle, simultaneously can realize the movement and the pitch angle adjustment of the binocular vision camera along the horizontal and the vertical directions, and flexibly adjusts the relative position and the angleof the photographed object and the camera. The invention can be applied to the quality detection of the object surface and the three-dimensional reconstruction of the object surface.

The invention relates to the field of helicopter maintenance, in particular to a mechanical lifting device for helicopter repair and maintenance. In order to solve the technical problem, the mechanical lifting device for helicopter repair and maintenance is provided. According to the technical scheme, the mechanical lifting device for helicopter repair and maintenance comprises a fixed lifting unit, a component lifting assembly, a support table, a wheeled movable chassis, a master control console, a first side ladder, a second side ladder, an auxiliary control console and an extension tripod. The mechanical lifting device is automatically attached to a helicopter fuselage so that the helicopter fuselage is clamped, fixed and lifted, and large displacement of the helicopter in the maintenance process is avoided; other components, such as rotor wings and engines, can be lifted and conveyed; in addition, a micro-angle adjusting component is added, and therefore the rotor wing mounting work is higher in adjusting freedom degree; and the rotor wing mounting flexibility of maintenance personnel is improved.