10results about How to "Accurate parking" patented technology

The utility model relates to the field of hoisting machines, in particular to a movable hoisting machine. Comprising a steel structure, a shear fork device, a traveling crane lifting appliance and a running mechanism, the shear fork device, the traveling crane lifting appliance and the running mechanism are all installed in the steel structure, the shear fork device comprises a first supporting pipe and a second supporting pipe, and the first supporting pipe and the second supporting pipe are connected with the steel structure; an upper support and a lower support are installed at the upper end and the lower end of the first supporting pipe and the upper end and the lower end of the second supporting pipe respectively, a guide cone is installed on the upper surface of the lower support, a plurality of second screws are connected to the lower end of the guide cone in a threaded mode, the guide cone is connected with the lower support through the second screws, and a cone barrel is slidably connected to the arc face of the guide cone. A plurality of arm plates are installed between the first supporting pipe and the second supporting pipe. The movable hoisting machine provided by the utility model has the advantage that the movable hoisting machine can be integrated and simplified.

The utility model discloses an LED screen opposite-opening device for a stage. The LED screen opposite-opening device comprises a guide rail, a plate hanging vehicle, an LED screen frame body, a driving mechanism and a transmission mechanism. The left LED screen frame body and the right LED screen frame body are hung on the guide rails through the left hanging plate trolley and the right hanging plate trolley respectively, the driving mechanism is installed in the middle of the guide rails through the transmission mechanism, and the hanging plate trolleys are connected with the transmission mechanism through the buffering mechanism. The driving mechanism drives the transmission mechanism to perform opposite opening and closing actions so as to drive the buffer mechanism to move, and then the two LED screen frame bodies perform opposite opening and closing actions. According to the LED screen oppositely-opening device for the stage, the gear is driven by the single gear motor to simultaneously drive the two racks to do synchronous relative movement, so that oppositely-opening operation of the two LED screen frame bodies is achieved, the structure is exquisite, the design is reasonable, the electrical control cost is low, and the equipment manufacturing cost is low; and gear and rack transmission is adopted, so that the operation of the two LED screen frame bodies is stable, the anti-pinch light curtains are integrated on the LED screen frame bodies, people or objects are prevented from being hurt when the screen bodies are closed, and the equipment safety is improved.

The invention discloses a precise parking method for an electric locomotive in an underground coal mine. A model of the braking torque of the electric locomotive is established and combined with a double closed-loop vector control model. The model of the braking torque of the electric locomotive and the real-time load of the electric locomotive, the real-time track slope, the real-time distance between the electric locomotive and the end point, the real-time speed of the electric locomotive, and the calculated value of the braking torque of the electric locomotive collected by the double closed-loop vector control model are used as sample sets to train a single hidden layer feedforward neural network model. The trained single hidden layer feedforward neural network model is introduced into a double closed-loop vector regulation system of a permanent magnet synchronous motor of the electric locomotive. The double closed-loop vector regulation system controls the permanent magnet synchronous motor of the electric locomotive to generate a braking torque, so as to achieve precise parking of the electric locomotive, reduce parking errors, and improve production efficiency.

The utility model relates to an unmanned plane technical field especially is related to a quick -mounting type unmanned plane landing gear charging communication adaptation device, solved unmanned plane landing gear recovery kit installation complex or need to carry out the irreversible structural modification to landing gear, reduce the technical problem of structural stability, it includes T type unmanned plane landing gear assembly, charging communication module, landing gear transverse stiffener group and landing gear wheel body assembly. Through the modularization quick -mounting design, the device need not to carry out destructive processing to unmanned plane original landing gear, can realize the efficient integration of charging and communication function. The present application can significantly improve the installation convenience, keep landing gear original mechanical strength, satisfy the demand of quick deployment and nimble replacement in unmanned plane automatic operation, ensure accurate positioning and stable charging communication simultaneously, provide reliable technical support for unmanned plane hangar and other automatic equipment.

The embodiment of the application provides a kind of electronic hydraulic brake and electronic parking brake collaborative control method of unmanned vehicle, this method includes: when electronic hydraulic brake unit is used to brake vehicle, according to the current state signal of vehicle, it is judged whether vehicle enters effective zero speed state;When vehicle enters effective zero speed state, send clamping trigger instruction to electronic parking brake unit, to make electronic parking brake unit start to execute clamping action;In the whole process that electronic parking brake unit starts to execute clamping action to clamping force reaches target clamping force, electronic hydraulic brake unit maintains current brake pressure unchanged, to make vehicle keep still;When it is detected that the clamping force of electronic parking brake unit reaches target clamping force, electronic hydraulic brake unit starts to release pressure with preset pressure relief slope, until the brake pressure of electronic hydraulic brake unit drops to target pressure relief pressure.Using this method, smooth braking, accurate parking and reliable parking of vehicle are realized.

An intelligent liquid feed feeding device comprises a rack, a driving wheel and a guide wheel, the driving wheel and the guide wheel are arranged at the bottom of the rack, the guide wheel is supported on a rail, the driving wheel is driven by a walking motor to rotate, a feed bin is arranged on the rack, the bottom of the feed bin is communicated with a feeding port through a pump body, and powerful cylindrical magnetic nails are arranged on one side of the rail at intervals. And a magnetic control switch for sensing the powerful cylindrical magnetic nail is arranged at the bottom of the rack. According to the utility model, the driving wheel is matched with the guide wheel positioned on the track to move, so that the reliability of the system is improved, and the control is simpler; the powerful cylindrical magnetic nail serves as a landmark sensor, the magnetic nail undertakes the tasks of turning speed reduction and target station recognition, provides position information for a control system, guarantees normal operation and accurate parking of the parking system, achieves automatic address recognition, positioning and accurate parking, meanwhile avoids turning over or material scattering in the advancing process, and improves the working efficiency of the parking system. And section speed regulation control is carried out in the driving process of the feeding vehicle.

The utility model relates to the field of electrical engineering, in particular to an electric porcelain insulator electric detection assembly line device. The utility model provides an electric porcelain insulator electric inspection assembly line device, which comprises a rack, a plate chain type conveyor, placing dies, electric inspection equipment and the like, the plate chain type conveyor is arranged in the rack, a plurality of placing dies are connected to a plate chain of the plate chain type conveyor, and the electric inspection equipment is arranged on the upper side of the rack. Through the arrangement of the motor, the full gear and the missing gear, the output shaft of the motor drives the missing gear to rotate, and in the periodic meshing and separating process of the missing gear and the full gear, starting and stopping of the connecting shaft and the plate chain type conveyor are controlled, so that precise stepping conveying of a placement mold and an electric porcelain insulator on the placement mold is achieved; the automation degree of the detection process is effectively improved, it is ensured that each row of electric porcelain insulators can be accurately stopped under electric detection equipment, and reliable mechanical transmission guarantee is provided for efficient and accurate electric performance detection.

The invention discloses a two-wheeled vehicle garage buffer mechanism and a two-wheeled vehicle garage, and relates to the technical field of two-wheeled vehicle garages. The device comprises a bottom plate, a grating frame, a fence and a rain shelter are sequentially fixed to the top of the bottom plate, the grating frame is located on the inner side of the fence, controllers are fixed to the two sides of the fence, a sliding rail is arranged on the outer wall of the lower portion of the grating frame, and a plurality of sliding plates are slidably mounted in the sliding rail; driving assemblies are arranged in a plurality of grids of the grid frame, vehicle carrying plates are fixed to the moving ends of the driving assemblies and the outer walls of the sliding plates, and front wheel brackets are fixed to the tops of the vehicle carrying plates. Through the arrangement of the buffer device, under the action of the elastic force of the buffer spring corresponding to the U-shaped inclined plate, the buffer spring can effectively reduce the impact pressure of a vehicle on the U-shaped inclined plate and other parts of the garage, the damage and abrasion of the garage structure are reduced, and the service life of the garage is prolonged.

The present invention relates to the technical field of winding devices, specifically a flexible film winding device with damping, which is intended to solve the technical problems in the background technology. The following technical scheme is adopted: it includes an inflatable shaft, one end of the inflatable shaft is extended with a mounting shaft section, the mounting shaft section is a hollow shaft structure and a rotary sealing joint is installed on the outer end, a flange bearing, a drive wheel bearing, and a torque bearing are installed on the mounting shaft section in sequence in the direction away from the inflatable shaft, a mounting flange is mounted on the flange bearing, a drive wheel is mounted on the drive wheel bearing, a torque bearing seat is mounted on the torque bearing, a torque seat is provided between the torque bearing seat and the drive wheel, the torque seat is a circular structure formed by circumferential splicing of the first half circle and the second half circle, the axial ends of the first half circle are respectively fixed to the torque bearing seat and the drive wheel, and the second half circle is screwed on the first half circle by bolts, and a C-shaped damping sleeve is placed between the torque seat and the mounting shaft section.

The application provides a precise parking auxiliary control method and device for an electric vehicle and a medium, and belongs to the technical field of wireless charging of electric vehicles. After detecting that an electric vehicle enters a parking place, a charging parking space matched with the charging system of the electric vehicle is screened, a parking instruction carrying target charging parking space information is received, and target charging parking space information, target center point coordinates at a standard parking position of the target charging parking space, and target edge angle point coordinates are sent to the electric vehicle. In the process of the electric vehicle driving into the target charging parking space position, current edge angle point coordinates and current center point information of the electric vehicle are acquired in real time, and it is determined whether the electric vehicle is parked in the middle position of the target charging parking space. If not, the steering angle of the electric vehicle is adjusted, the electric vehicle is controlled to enter the middle position of the target charging parking space based on the adjusted steering angle, precise parking is finally realized, and the charging efficiency of the electric vehicle is improved.