29results about How to "Control speed" patented technology

This utility model relates to the field of feed feeding technology, providing a feeding device suitable for the initial feeding of fish fry in factory-farmed aquaculture. The device includes a base, a feed storage bin, a spotlight, a conduit, a suction pump, and a particle detector. The feed storage bin is located on the base and holds the feed; the spotlight has a through-hole; the first end of the conduit connects to the feed storage bin, and the second end of the conduit connects to the spotlight through the through-hole; the suction pump is located in the conduit and is used to draw feed to the through-hole; the particle detector is located in the conduit and is used to detect the amount of feed flowing through. This utility model, by setting up a feed storage bin and a spotlight connected by a conduit, allows feed to flow through the conduit to the through-hole; the suction pump in the conduit regulates the flow rate of the feed to control the feeding speed; and the particle detector accurately detects the amount of feed flowing through, improving feeding accuracy and benefiting the fry rearing stage; it can control the feeding speed and quantity, reduce labor costs, make operation more convenient, and improve the survival rate of fry rearing.

This utility model discloses a magnetically speed-regulated pipe cleaning nozzle, comprising: a central shaft, a nozzle seat, a base, and a magnetic speed-regulating assembly. One end of the central shaft has a connecting port, and the other end is fitted with a sealing ring. The nozzle seat has several spray holes, and a sliding ring is rotatably mounted on the outer wall of the nozzle seat. The base is fitted onto the outside of the central shaft, and its outer wall is threadedly connected to a first mounting hole. The base contains a first mounting cavity and a second mounting cavity. The second mounting cavity is rotatably connected to the central shaft via several bearings. The magnetic speed-regulating assembly includes a magnetic ring, which is fixedly mounted on the central shaft. Several magnets are mounted on the magnetic ring, and a magnetic ring sheath is fitted around the magnetic ring. A copper ring is fixedly mounted on the inner wall of the first mounting cavity. This utility model can limit the nozzle's rotational speed, thereby preventing the nozzle from becoming uncontrollable due to excessive speed, and can also reduce the wear rate of the central shaft, extending the nozzle's service life.

This application relates to the field of flexible plate testing technology, and in particular to a flexible plate testing device, including a fixed plate, a sliding plate, a follower plate, and a driving mechanism. The top surface of the fixed plate is suitable for connection to one end of the flexible plate. The top surface of the follower plate, at the end away from the sliding plate, is suitable for connection to the other end of the flexible plate. The driving mechanism is connected to the sliding plate and is used to drive the sliding plate to perform linear reciprocating motion, thereby driving the follower plate to perform linear reciprocating motion. During this process, the position of the crease in the middle of the flexible plate continuously changes. The fixed plate, sliding plate, and follower plate cooperate with each other to realistically simulate the bending and stretching states of the flexible plate in actual use. The gap between the top surface of the fixed plate and the bottom surface of the follower plate can be adjusted according to the thickness and bending radius of the flexible plate being measured to meet the testing requirements of various working conditions, greatly improving versatility.

The invention relates to a constructional engineering material conveying device, and relates to the technical field of conveying devices, the constructional engineering material conveying device comprises a conveying pipe, a material distributing structure is mounted on the conveying pipe, a feeding structure is mounted on the material distributing structure, circulating structures which are symmetrically distributed are mounted in the material distributing structure, and a stirring structure is mounted in the feeding structure; according to the constructional engineering material conveying device, the extrusion inlets distributed in an array mode are formed in the connecting pipe, and the extrusion plate sliding up and down is matched, so that a concrete mixture enters the connecting pipe through the extrusion inlets in an extrusion mode of the extrusion plate; abrasion between the concrete mixture and the threaded rotary valve is avoided; the automatic feeding device is completely driven by high-pressure gas injected into the conveying pipe, so that the threaded rotary valve rotates, and the threaded rotary valve is matched with the circulating structure to drive the extrusion plate to slide up and down, so that the automatic feeding effect is achieved, and the situation that high-pressure gas in the conveying pipe vibrates, the conveying pipe and the feeding device vibrate, and feeding of concrete mixtures is affected is avoided.

The utility model discloses a cable sheath extrusion equipment, including the processing platform, the top right -hand member of processing platform is fixedly installed with the feed pipe, the inside fixed mounting of feed pipe has the screen, the top left -hand member of processing platform is fixedly installed with L type board, one side fixed mounting of L type board has servo motor, and the output of servo motor is fixedly installed with small belt pulley, and one side of small belt pulley is connected with large belt pulley through belt drive, and the top one side edge of large belt pulley is fixedly installed with the scraper, and the other end of scraper extends to the inside of feed pipe and is contacted with the surface of screen connection, and large belt pulley is rotatably connected with the top right -hand member of processing platform. The utility model servo motor drives the end of scraper to slide on the surface of screen smoothly, effectively controlled the speed of screen blanking, ensured the uniformity of blanking, and simultaneously, it also prevented the blockage of screen surface to the stability of cable sheath extrusion process, ensured the processing progress.

This application relates to an intelligent toilet seat soft-close device, including a drive module, a first switch module, and a second switch module. The drive module includes a drive source connected to a first semiconductor element. The first switch module is used to conduct the circuit between the drive source and the first semiconductor element and a first consumable element, and a ground terminal. A first terminal of the first switch module is connected to the first consumable element, and a second terminal of the first switch module is grounded. The second switch module is used to control the circuit of the first switch module to cut off when power is available, allowing the drive source to drive the toilet seat normally. In the absence of mains power, the device uses the first switch module to conduct the current loop between the drive source and the ground terminal, hindering the descent of the toilet seat, thereby achieving the effect of slow descent of the toilet seat when there is no mains power. The grounding loop effectively protects the circuit components from damage caused by high back electromotive force. When power is available, the device can also more effectively control the rotation speed and descent speed of the drive source.

The present application relates to the technical field of bellows preparation, and particularly relates to a cathode device for preparing an electrodeposited bellows and a preparation method, which comprises a frame body, a core mold assembly, a cathode wire assembly and a power transmission assembly. The frame body is internally provided with the core mold assembly, part of the cathode wire assembly and the power transmission assembly. The inner wall of the cylindrical groove of the frame body is provided with annular sawteeth. The core mold assembly comprises a horizontal connecting rod and a core mold body, the other end of the core mold body extends into the frame body, and each aluminum alloy core mold of the core mold body is detachably connected with a nylon external gear meshing with the annular sawteeth at the end away from the horizontal connecting rod. The present application can effectively control the rotating speed of a single core mold during the electrodeposition process, ensure the stable and uniform rotation of the core mold in the circumferential direction, thereby improving the imbalance of the circumferential current density and ion transmission conditions during the electrodeposition process, and ensuring that the prepared single-layer or multi-layer bellows has a uniform wall thickness in the circumferential direction.

The application relates to the field of tire dismounting, in particular to a tire stripping machine driving device which comprises a mounting table, a supporting plate, a fastening platform, a speed reducer and a servo motor, the supporting plate is fixedly connected to the lower end of the mounting table, one side of the fastening platform is fixedly connected with a rotating column, the mounting table is provided with a rotating opening, the rotating column is rotationally connected to the inner wall of the rotating opening around the axis of the rotating column, the shell of the speed reducer is fixedly connected to the lower end of the mounting table, the output shaft of the speed reducer is coaxially fixedly connected to the rotating column, the motor shell of the servo motor is fixedly connected to the mounting table, and the motor shaft of the servo motor is coaxially fixedly connected to the input shaft of the speed reducer. Stepless speed regulation and real-time torque control are realized, tire damage is reduced, the service life of the equipment is prolonged, and the user is facilitated.

The utility model discloses a community afforestation maintenance weed pruning device relates to community afforestation maintenance weed pruning field, including the car body, both sides of car body all are symmetrically provided with the wheel, the car body bottom is equipped with the pruning assembly, the car body top is equipped with the cleaning assembly, can make the weed trimmer adhere to the grass clippings on the inner wall of baffle and clean simultaneously to the weed pruning through the setting cleaning assembly, has reduced the wear and tear of grass clippings to the machine, has prolonged the service life of machine, has reduced the number and time of manual cleaning of maintenance personnel, thereby improved the overall efficiency of pruning work, through setting adjusting assembly can be aimed at the operator of different height, carries out handle height automatic regulation, ensures all can find the operation height suitable for oneself, the handle of adjusting to the suitable height can also make the operator more easily control the direction and speed of cart, thereby more comfortably operates, thereby improves work efficiency.

The application provides a speed control system of a weak magnetic method stress on-line detector and a control method thereof. The detector speed control system is used for detecting a component to be detected. The detector speed control system comprises a control structure and a control module. The control structure and the control module are signal connected. The control structure comprises an inner shell, an outer shell, a driving motor, a blade, a first flow hole, a second flow hole and a speed measuring sensor. The inner shell is arranged in the outer shell. The first flow hole is arranged between the inner shell and the outer shell. The driving motor is arranged in the inner shell. The output end of the driving motor is connected with a rotating rod. One end of the rotating rod which is arranged to pass through the side wall of the inner shell is connected with the blade. A plurality of second flow holes are arranged on the side wall of the outer shell which is close to the blade. The first flow hole is connected with the second flow hole. The problems that the existing nondestructive detection device cannot control the running speed when working in the pipeline, the detection precision is poor, the detection time is increased and the detection efficiency is reduced are solved.

The utility model relates to the technical field of grinding, and disclose a raw material grinding equipment of controllable hydraulic pressure degree. This raw material grinding equipment of controllable hydraulic pressure degree, include: crushing structural assembly, the upper end left side of crushing structural assembly is installed with hydraulic pressure adjusting assembly, the upper end of hydraulic pressure adjusting assembly is installed with driving gear, the left side of driving gear is installed with hydraulic motor, the left side of hydraulic motor is installed with proportional valve, the upper end of proportional valve is installed with receiver, the front end of crushing structural assembly is installed with control structural assembly, the inside of control structural assembly is installed with APC controller, the lower extreme of APC controller is installed with OPC communication structure, possess effective prevention traditional ball mill control form and adopt motor drive, but when operating in the environment of big pollution degree, motor can frequently have the failure, lead to the follow -up maintenance cost is higher and influence overall work efficiency.

The utility model relates to the technical field of joule heat high temperature synthesis equipment discloses a rotatable joule heating device, include: the two sides inner wall of heating bin are connected with the clamping piece opposite rotation, and the pivot of one clamping piece is worn out heating bin, reaction pipe is arranged in the heating bin, and the both ends of reaction pipe are respectively clamped on two clamping pieces, and carbonaceous heating carrier is equipped in reaction pipe, and carbonaceous heating carrier is used for under the action of electric current instantaneous heat generation to heat the material in reaction pipe, the output shaft of rotary drive part is equipped with magnetic coupler, and magnetic coupler is connected with the pivot of clamping piece worn out heating bin, is used for driving reaction pipe to rotate through clamping piece, this device can overcome the defect that traditional heater heating rate is low, heating time is long and limit temperature is not high, can help high temperature synthesis material even in the heating test process is heated, and better control synthesis material's collective appearance, prevent the problem that synthesis material appearance is uneven.

This utility model discloses an ultrasonic atomizing coating head, relating to the field of fabric dyeing technology. It includes a housing, a filter, and an ultrasonic driver. The housing has a cavity, a liquid inlet channel, an air inlet channel, and an outlet channel. The cavity is simultaneously connected to the liquid inlet channel, the air inlet channel, and the outlet channel. The cavity includes an air chamber, a liquid storage chamber, and an atomization chamber. The ultrasonic driver is fixed within the cavity. The housing includes an upper cover, a lower cover, and a gasket. The gasket is sandwiched between the upper and lower covers. The upper cover, lower cover, and gasket are detachably connected as a single unit. The outlet channel is formed by the upper and lower covers. It also includes a nozzle plate disposed within the outlet channel, with multiple equidistantly distributed nozzle holes. This utility model enables control over the atomized dye liquor outlet process.

This invention relates to the field of shale oil and gas reservoir research technology, specifically to a method for fabricating a capillary model for studying the wetting regulation of shale oil reservoirs. The method includes the following steps: mask fabrication, glass slide cleaning, chromium-coated topcoat spraying, pre-baking (hardening), exposure, development, hardening, chromium layer etching, glass slide etching, topcoat and chromium removal, thermal bonding, and wettability modification. By preparing capillaries with micron-nanometer diameters and modifying their wettability, capillary models with an aspect ratio of approximately 1:2, etching precision of 500 nm, and maximum pressure resistance of 10 MPa can be fabricated. Combined with a microfluidic image acquisition module and pressure acquisition module, the fluid flow patterns within the non-uniform wetting micropores of the reservoir can be visualized for research.

This invention discloses a construction method for reinforcing tunnels across faults using corrugated steel plates. The method involves processing corrugated steel plates into a shape similar to tunnel lining and installing them inside the tunnel as a reinforcement. Its main features include the corrugated steel plate portion and the base support portion. Due to the waist-shaped holes on the corrugated steel plates and connectors, this invention significantly improves the tunnel's resistance to large fault deformations while ensuring good waterproofing and seepage prevention between the corrugated steel plates. The invention uses grouting bags to fill the gaps behind the corrugated steel plates, effectively controlling the grouting speed and area, greatly improving the grout retention rate in the grouting area behind the plates, preventing bulging of the corrugated steel plates at the joints due to excessive grout injection in a short time, and ensuring the grouting reinforcement effect. The support rods and beams allow the corrugated steel plates to be applied to more tunnel cross-sectional forms while meeting the tunnel's clearance requirements, solving the engineering problem of the inability to quickly repair tunnels after fault displacement.

This utility model relates to a high-efficiency granulation and molding equipment for oyster shell fertilizer, including a storage box with several extrusion ports. Each extrusion port is equipped with a shearing mechanism. The distance between the rotation axis of any extrusion port and the shearing mechanism is the same. The shearing mechanism includes several shear blades evenly arranged around its rotation axis, with the distance between any part of any shear blade and the rotation axis of the shearing mechanism being the same. The movement trajectory of the shear blade intersects the axis of the extrusion port. The fact that the rotation axis of the shearing mechanism and any extrusion port are the same, and that the distance between any part of any shear blade and the rotation axis of the shearing mechanism is the same, ensures that the material is cut at the same time at the discharge port, thereby ensuring the uniformity of the granulated particles and avoiding inconsistent particle size. This method is simple, efficient, safe, and reliable.

The application provides a fan control method and system, comprising the following steps: S1, detecting the pull-up resistance of the ALERT pin and the FANFAIL pin during power-on and the clock generation circuit, and obtaining the period and duty cycle of the fan PWM signal during power-on according to the resistance value; S2, waiting for the host computer to configure the FanDCYReg register, and being in the initial state if the FanDCYReg register is not configured; S3, after the host computer configures the FanDCYReg register, the duty cycle of the fan PWM signal is determined by the FanDCYReg register, and the period is determined by the PWMFreqReg register, and the state is the normal state; S4, monitoring whether the heartbeat line of the host computer is abnormal, and if the heartbeat line is abnormal, the fan drive control mode is switched to the takeover state, otherwise, the state is the normal state; meanwhile, the pulse counting circuit directly gives the RPM speed value of the fan, and the bit width is 16, and the division operation of the host computer is not needed. The application can provide the speed RPM of the fan in real time, reduce the software resource cost of the host computer, reduce the cable between the fan and the host computer, and reduce the system cost.

The utility model relates to the technical field of egg -laying hen breeding equipment discloses a kind of egg picking device of laminated egg -laying hen breeding equipment, including base, left support, right support, angle adjusting assembly, three collecting grooves, three anti-collision conveying components, transmission component one, transmission component two, vertical conveying component, multiple receiving grooves, material guide box and support frame.The utility model has the following advantages and effects:it can effectively improve egg picking efficiency, reduce the damage caused by manual operation, and simultaneously, the angle of collecting groove can be flexibly adjusted according to actual demand, so as to optimize the rolling speed and direction of eggs, and further reduce the risk of egg breakage caused by collision during transmission process, and the eggs collected by collecting groove can be transferred from different collecting grooves to material guide box, ensuring that the entire egg picking process is more smooth and efficient, and can well adapt to the space characteristics of laminated breeding environment, providing an ideal solution for large-scale egg -laying hen farm.

This invention discloses a device for applying sudden unbalanced loads to a simulated rotor, comprising a wheel, a high-temperature ceramic heating element, a strong magnetic block, an unbalanced mass block, an unbalanced mass compensation block, a strong magnetic block fixing screw, a conductive slip ring, a support frame, a rotating shaft, and bearings. The high-temperature ceramic heating element, the strong magnetic block, and the unbalanced mass block (or unbalanced mass compensation block) are sequentially installed radially from the inside out in a rectangular groove on the wheel, and the high-temperature ceramic heating element is powered through a conductive slip ring mounted on the rotating shaft. By controlling the temperature of the strong magnetic block, the magnetic attraction force on the unbalanced mass block or the unbalanced mass compensation block is indirectly controlled, thereby achieving the sudden application or compensation of unbalanced loads on the rotor. This invention makes the application of unbalanced loads highly accurate and wide-range, allows for compensation of residual unbalance after application, and makes the repeated testing process more convenient and faster.

This invention discloses a method for applying attention mechanisms and reinforcement learning to AI server heat dissipation. The method uses hardware temperature as input data and normalizes the input data. An attention network is constructed based on a multilayer perceptron, using GPU temperature as input for training, and outputting an attention weight vector 'a'. Weighted GPU temperature, CPU temperature, memory temperature, and hard drive temperature are used as input features for an Actor network, which then outputs a predicted fan speed. These same weighted temperatures are also used as input features for a Critic network, which outputs a state-action Q-value estimate. A DDPG model is embedded within the BMC (Browser Controlled Controller), and input data is periodically fed back to the DDPG model within the BMC. The DDPG network adaptively adjusts its strategy, and the BMC transmits the required fan speed control output to the fan via I2C to adjust the fan speed. This method enables more precise control of server fan heat dissipation, resulting in energy savings.

A superconducting magnetically levitated weft insertion jib loom includes a jib, an electromagnetic shuttle-throwing device, a magnetically levitated weft insertion device, an electromagnetic shuttle-controlling device, and a three-axis moving suction cup. The electromagnetic shuttle-throwing device includes a first permanent magnet array track and a first electromagnetic coil array track, with the first electromagnetic coil array track positioned on both sides of the first permanent magnet array track. The electromagnetic shuttle-controlling device includes a second permanent magnet array track and a second electromagnetic coil array track, with the second electromagnetic coil array track positioned on both sides of the second permanent magnet array track. The magnetically levitated weft insertion device includes a third permanent magnet array track. The jib includes a shuttle body and a Dewar container. Permanent magnet arrays are symmetrically installed on both sides of the shuttle body. A weft clamp is installed inside the shuttle body. The Dewar container is filled with liquid nitrogen, and a superconductor is inserted into the bottom of the Dewar container. This design not only achieves controllable jib weft insertion speed but also improves the applicability of jib weft insertion.

This invention discloses an axial flow fan assembly and its control method. The axial flow fan assembly includes a fan shroud, fan blades disposed within the fan shroud, a fan motor driving the fan blades to rotate, and a pressure balancing device. The pressure balancing device includes a housing, a piston, and a pressure balancing motor. Both the housing and the pressure balancing motor are detachably fixed to the outer wall of the fan shroud. The piston is slidably disposed within the housing, dividing the inner cavity of the housing into a first chamber and a second chamber. Both ends of the first and second chambers have openings facing away from each other, with the openings of the first and second chambers respectively facing the fan blades. The pressure balancing motor is driven by the piston, driving the piston to move along the length of the housing within the inner cavity. The pressure balancing device can balance the high and low air pressures generated on the surface of the fan blades during rotation. Therefore, this axial flow fan assembly has the advantage of good noise reduction performance.

This utility model relates to the technical field of paper feeding and processing, and discloses an adjustable pressure feeding mechanism for an automatic feeding flatbed machine. It includes two parallel supports, with an adjusting rod between the lower parts of the supports. A sleeve is provided on one side of each support facing each other, and a connecting shaft is provided on one side of each sleeve. The connecting shaft passes through the supports and has an adjusting structure at its end for adjusting the rotational resistance of the sleeve. This utility model adjusts the rotational resistance of the connecting shaft through the adjusting structure, thereby adjusting the rotational speed of the sleeve. The adjusting structure works by rotating a threaded sleeve, which, through a compression spring, presses against a compression sleeve, causing the compression sleeve to abut against a fixed seat. This increases the resistance of the sleeve, reducing the power transmitted to the connecting shaft, thus limiting the rotational speed of the sleeve and preventing stacking.

The utility model relates to concrete production technical field, concretely for adjustable feeding equipment of discharge gate, including bottom plate, the bottom all around of bottom plate is installed with locking type universal wheel, the top one side fixedly connected with support of bottom plate, the one side fixedly connected with handle of support, the outside installation of handle has protective sleeve, the inside installation of support has device body, the outside one end installation of device body has quick -release assembly. The improved feeding equipment, is additionally provided with adjusting assembly, so that can corresponding adjustment of the height and angle of discharge hopper is carried out, and then can effectively adjust the conveying path of material, ensure that material can accurately, smoothly send into mixer or other receiving equipment, and can corresponding adjustment of the opening and closing size of discharge hopper, thereby can control the flow when material unloading, is additionally provided with quick -release assembly, so that can open the shell cover quickly, and then so that the staff can carry out cleaning work in the shell interior.

The utility model relates to oil mother shale dry distillation technical field, and disclose oil mother shale dry distillation feeder, including the connecting pipe, the lower extreme of connecting pipe is provided with transmission structure, and the lower extreme of transmission structure one end is provided with connecting structure, the transmission structure includes transmission pipe, motor, baffle, rotating rod and spiral plate, and transmission pipe fixed connection is established in the outer surface of connecting pipe lower extreme. The utility model discloses through starting motor, can drive rotating rod and rotate, simultaneously drive spiral plate and rotate, can make the blocky oil shale inside transmission pipe continuously transmit outward, simultaneously through the control motor can control the speed of spiral plate rotation, thereby can be convenient for the speed of oil shale transmission control, avoids the condition that oil shale transmission effect is not good, improves the practicality of equipment to a certain extent.

This utility model relates to a material feeding device in fracturing operations, including a base and a fixed column. A movable column is slidably inserted into the fixed column, and a rack is embedded in the movable column. An L-shaped plate is formed on the front of the fixed column, and a gear is slidably inserted into the L-shaped plate. The gear is connected to a motor and meshes with the rack. A fixed plate is fixed to the top of the movable column, and a connecting column is fixed to the top of the fixed plate. A placement plate is fixed to the top of the connecting column, and a feeding plate is hinged to one side of the placement plate. Sliding grooves are formed on both sides of the connecting column, and an L-shaped column is slidably inserted into the grooves. The L-shaped column is located above the fixed plate. An electric push rod is installed on the back of the L-shaped column, and a connecting block is hinged to one side of the L-shaped column. The end of the connecting block away from the L-shaped column is fixedly connected to one end of the placement plate. This utility model allows for adjustment of the operating height and facilitates adjustment of the feeding angle, thereby ensuring uniform dispersion of materials in fracturing fluid.

This invention discloses an intelligent reinforcement device and method for FPC boards, relating to the field of FPC board reinforcement technology. The intelligent reinforcement device and method for FPC boards includes a chassis and an attachment mechanism installed within it. The attachment mechanism includes a support, with FPC board strips with attached FPC boards and reinforcement board strips with attached reinforcement boards respectively transported on both sides of the support. FPC board brackets and reinforcement board brackets are fixedly connected to both sides of the support to support the FPC board strips and reinforcement board strips. The FPC board and reinforcement boards are simultaneously attached to the paper strips and transported, with multiple reinforcement boards for one FPC board attached to different paper strips. The transfer attachment mechanism can simultaneously pick up and move multiple reinforcement boards to the FPC board to complete the attachment. Its internal sliding negative pressure seat cooperates with the positioning groove, allowing for independent movement and rearrangement of reinforcement positions, resulting in high efficiency and accuracy. Furthermore, the mechanism features a modular design, allowing for structural replacement as needed, and can be used for different FPC board reinforcement positions, improving versatility.

The utility model discloses a dry granulator with heat protection function, and a plurality of cooling cavities are arranged along the long axis direction of the compression roller inside the compression roller, one end of the compression roller is provided with a water inlet cavity in communication with one end of the cooling cavity, the other end of the compression roller is provided with a water outlet cavity in communication with the other end of the cooling cavity, a thermometer is arranged on the compression roller body to detect the temperature of the side of the compression roller close to the water outlet end, the surface of the compression roller is provided with an air cooling cleaning mechanism to clean the adhesive on the surface of the compression roller, the thermometer detects the temperature of the side of the compression roller close to the water outlet end, which avoids the high temperature of the compression roller close to the water outlet end and the easy occurrence of the adhesive phenomenon, and the water inlet amount and speed can be controlled conveniently, so that the compression roller has a good cooling heat protection effect.