28 results about "Hinge angle" patented technology

The invention discloses a pole climbing robot for a wind power tower pole, which is characterized in that the robot mainly comprises a robot body, 4-8 pole climbing mechanisms, a snake-shaped swing arm and a movable studio, wherein the snake-shaped swing arm and the movable studio are mounted on one side of the robot body; the robot body is an annular body formed by combining two semicircular cambered bodies or three equal cambered bodies; the diameter of an internal ring of the circular body is matched with the diameter of the wind power tower pole; the pole climbing mechanisms mainly comprise upper foot wheels, lower foot wheels, connecting arms, driving gears, thrust screw rods, nut gears and supporting seats; the upper foot wheels are connected with the lower foot wheels by the connecting arms through wheel shafts; the connecting arms are connected with the thrust screw rods by connecting pin shafts on the connecting arms, and form movable hinges; the 4-8 pole climbing mechanisms are distributed in the circular robot body uniformly; the snake-shaped swing arm consists of three swing arm parts, namely a large arm, a middle arm and a small arm; and the movable studio comprises two paralleled linear guide rails, a walk driving device and an operation room.

This utility model relates to a novel anti-passage barrier device, comprising two upright posts with a scissor-shaped connecting rod between them. A hinge is installed on the right upright post, comprising a first part, a second part, a rotating shaft, and a limiting locking mechanism. The limiting locking mechanism includes a rotating plate and a friction plate. The first part includes a first bushing, and the second part includes a second bushing. Both the first and second bushings are fitted onto the rotating shaft with a gap between them. The thickness of the friction plate is the same as the gap width. When the rotating plate rotates, it can cause the friction plate to engage with or disengage from the gap. When not in use, this utility model can be rotated to be close to a base without affecting passage near the base. The hinge angle is locked to prevent the upright posts and the scissor-shaped connecting rod from being manually rotated, thus achieving a good passage barrier effect. The telescopic rod is inserted into the positioning hole on the scissor-shaped connecting rod, which can also prevent the upright posts and the scissor-shaped connecting rod from being manually folded.

Described herein are methods and systems for determining a relative position of different portions of a hinged device. Motion sensor data from sensor assemblies of each portion is fused to relate the device portions to a world frame. An angular orientation between the device portions is determined with respect to the hinge axis and accumulating sensor measurement errors are compensated by constraining determined axes of the sensor assemblies using the motion sensor data and known relationships between physical axes of the sensor assemblies and the mechanical hinge, such that the determined axes of the sensor assemblies are aligned along the hinge axis.

The utility model relates to the technical field of hinges, and provides a multi-gear adjusting hinge which comprises a sliding rod, one end of the sliding rod is hinged with a hinging part, the hinging part comprises a limiting shaft and a shell, the limiting shaft is connected with the sliding rod in a clamped mode, the shell is arranged in the limiting shaft in a sleeved mode, the limiting shaft is connected with the shell in a rotating mode, and the shell is connected with the sliding rod in a clamped mode. A ratchet wheel and a small tooth block are arranged in the shell, the ratchet wheel is connected with the limiting shaft in a clamped mode, the ratchet wheel is provided with a first ratchet part, the small tooth block is provided with a second ratchet part, and the first ratchet part and the second ratchet part are connected in a one-way mode. According to the foot-pad hinge, when a user adjusts the angle of the foot-pad hinge, the first ratchet part and the second ratchet part are unidirectionally jointed, so that the foot-pad hinge can be accurately positioned on a preset gear in each adjustment. Due to the fact that the first ratchet part occupies more than one half of the circumferential surface of the ratchet wheel, rich gear choices are provided, and accuracy and stability of adjustment are guaranteed.

According to the three-axle two-compartment trackless train braking force optimization method considering both stability and maneuverability, if the current three-axle two-compartment trackless train is in the linear braking state, the risk level of the current three-axle two-compartment trackless train is evaluated based on the vehicle speed, the hinge angle of the front compartment and the rear compartment, the change rate of the hinge angle of the front compartment and the rear compartment and the braking strength; optimal braking forces of the front axle, the middle axle and the rear axle are optimally distributed based on different risk levels; if the current three-axle two-compartment trackless train is in the steering braking state, the steering stage of the current three-axle two-compartment trackless train is judged according to the hinge angle of the front compartment and the rear compartment and the change rate of the hinge angle, and the optimized braking force of the front axle, the middle axle and the rear axle is optimally distributed on the basis of different steering stages. Therefore, the stability and maneuverability of the three-shaft two-compartment trackless train under different braking working conditions are balanced.

Proposed is a trailer anti-sway system including a front camera, a front and side radar, a tow truck IMU, a hinge angle sensor configured to measure a hinge angle between the tow truck and a trailer, a rear camera configured to photograph a rear side of the trailer, a rear and side radar configured to monitor the rear and side of the trailer, a trailer IMU mounted to the trailer, and a controller configured to receive a signal of at least one of the front camera, the front and side radar, the tow truck IMU, the hinge angle sensor, the rear camera, the rear and side radar, the trailer IMU, predict the possibility of the sway occurrence to warn a driver of the possibility of the sway occurrence, and perform stability control for the tow truck and the trailer by stages according to a predetermined reference condition.

The present disclosure is directed to hinge angle detection for electronic devices in a sleep state. An example method includes determining, during a sleep state of a device, whether the device is in an activity condition or an inactivity condition; and responsive to determining that the device is in the activity condition—causing a first sensor unit and a second sensor unit to operate in an operating mode, and determining an angle based on the first orientation and the second orientation determined during the operating mode. Both sensor units include an accelerometer and a gyroscope, and are configured to, during the operating mode, determine an orientation based on measurements by accelerometer and gyroscope.

This application discloses a navigation control method and related apparatus for an articulated vehicle, relating to the field of autonomous driving control. The method includes: acquiring real-time navigation information of the articulated vehicle; calculating the steering curvature error based on the navigation information and a preset discrete error tracking model; calculating the expected value of the steering curvature based on the steering curvature error and a reference value of the steering curvature; calculating the expected value of the hinge angle based on the expected value of the steering curvature; and generating a steering drive command to control the steering motor to drive the hinge angle to change to the expected value of the hinge angle. The discrete error tracking model describes the linear relationship between the discrete pose tracking error vector and the steering curvature error. The pose tracking error consists of X-axis tracking error, Y-axis tracking error, and heading angle tracking error. This method introduces an intermediate quantity, steering curvature, based on the motion characteristics of the articulated vehicle, linearizing the motion state model of the articulated vehicle and improving the control accuracy of the articulated vehicle's curve tracking.

The utility model belongs to the technical field of steel structures, and particularly relates to a steel structure corner connecting prefabricated part. Comprising a first steel body and a second steel body and further comprises a first connecting plate arranged on the surface of the first steel body and a second connecting plate arranged on the surface of the second steel body. A first hinge seat is arranged on the first connecting plate, and a second hinge seat is arranged on the second connecting plate; the first connecting plate is hinged to the second connecting plate; the two ends of the supporting assembly are hinged to the first hinge base and the second hinge base correspondingly. The supporting assembly is provided with a telescopic structure used for adjusting the distance between the two ends. According to the device, a triangular supporting structure with the hinged position of the first connecting plate and the second connecting plate, the first hinged base and the second hinged base as vertexes is constructed, and the hinged angle and the telescopic length of the supporting assembly can be adjusted through manual operation of constructors; the prefabricated part can be used as a universal prefabricated part to adapt to the connection of steel structure corners with various non-standard angles.

The invention discloses a steering column assembly, a steering system and a vehicle, and belongs to the technical field of vehicles. The steering column assembly comprises a mounting support, a column mechanism, a first adjusting mechanism and a second adjusting mechanism. Wherein the mounting bracket is mounted on an upper bottom plate of a cab. The tubular column mechanism comprises a tubular column support, a tubular column sleeve and a directional tubular column. Wherein the tubular column bracket is hinged to the mounting bracket. The tubular column support is rotationally connected with a tubular column sleeve through a bearing, a direction tubular column is axially arranged in the tubular column sleeve in a sliding mode, and one end of the direction tubular column extends out of the tubular column sleeve. The tubular column mechanism can be adjusted front and back by rotating the tubular column support around a hinge point, and the first adjusting mechanism is connected with the mounting support and the tubular column mechanism and used for unlocking or locking the hinge angle of the tubular column mechanism and the mounting support. The vertical position of the steering wheel can be adjusted by sliding the direction tubular column, and the position of the direction tubular column in the tubular column sleeve can be unlocked and locked through the second adjusting mechanism.

The utility model relates to the technical field of illustration copyboards. The assembled illustration copyboard comprises a mounting plate, suction cups are fixedly connected to the four corners of the lower end of the mounting plate, a hinged plate is hinged to the outer surface of one side of the upper end of the mounting plate, an adjusting structure is arranged in the surface of the side, close to each other, of the mounting plate and the hinged plate, and a disassembling structure is arranged in the hinged plate. By upwards hinging and rotating the hinging plate, the supporting plate is driven to automatically and downwards hinging and rotate, and the interior of the clamping groove is clamped with the outer surface of the rectangular clamping plate on the adjusting plate, so that the hinging angle of the hinging plate can be positioned; and meanwhile, the hinge plates continue to be upwards hinged and rotated, so that the clamping grooves are clamped to the outer surfaces of the rectangular clamping plates on the other sets of adjusting plates, the hinge angle of the hinge plates can be adjusted, therefore, the equipment can be conveniently adjusted according to different actual scenes or different habits of users in the using process, and the usability of the equipment is improved to a certain degree.

An operation method of a tank truck anti-rollover system based on a hinge angle comprises the steps that an equivalent simple pendulum model is established, liquid lateral shaking force and shaking torque are set, and the model is combined with Fluent to confirm the effectiveness of the model; the method comprises the following steps: creating a six-degree-of-freedom dynamic model in a Simnlink of MATLAB (matrix laboratory); a semitrailer model is established in the Trucksim; performing data intercommunication between the Tricksim and the Simulink, inputting the created equivalent simple pendulum model into an MATLAB platform, and forming a tank truck model with the created six-degree-of-freedom dynamic model; the size change of a hinge angle in the tank truck model is monitored, a PID controller and an LQR controller are adopted, and appropriate additional yawing moment is distributed to specific wheels for control through differential braking; the change of the LTR is detected, and anti-rollover early warning is carried out; changes of a hinge angle and a transverse load transfer rate are detected through monitoring software, an anti-rollover strategy is selected, and the tank truck is prevented from rollover by reasonably distributing torque through differential braking. According to the invention, the risk of rollover of the tank truck caused by too large or too small hinge angle is greatly reduced.

A zero-gravity sofa iron frame, comprising: a support base (1); an iron frame body (2), the iron frame body (2) being hinged to the support base (1); a backrest assembly (3), the backrest assembly (3) being hinged to the iron frame body (2); a leg extension assembly (4), the leg extension assembly (4) being hinged to the iron frame body (2); and a main driving member (5), the main driving member (5) being configured to adjust the hinge angle between the iron frame body (2) and the support base (1), and the main driving member (5) adjusting the hinge angle between the iron frame body (2) and the support base (1) within the range of 6° to 25°.

The invention relates to the technical field of agricultural equipment, and discloses a pressure-adjustable corn compacting device and an adjusting method.The pressure-adjustable corn compacting device comprises an integrated bearing frame, and a hinge linkage structure is formed by a front light connecting frame and a rear external movable frame through a first self-adaptive pressure adjusting assembly; the double-wheel cooperative pressing system comprises a pre-pressing wheel which is vertically hung at the bottom of the front end of the lightweight connecting frame through a second self-adaptive pressure adjusting assembly, and the surface of a wheel body of the pre-pressing wheel is provided with a spiral flow guide rib and a variable eccentric counterweight assembly; the pre-press wheel serves as a front end component, and the segmented floating structure (controlled by the floating connecting mechanism) of the pre-press wheel can actively adapt to ground fluctuation, so that suspension or impact caused by uneven terrain is avoided; the main press wheel responds to displacement feedback of the pre-press wheel in real time through hinge angle adjustment (controlled by the first self-adaptive pressure adjusting assembly), it is ensured that stable grounding pressure can be maintained in soft or hard soil areas, and the uniformity and adaptability of press operation are remarkably improved.

The invention discloses a non-contact measurement method, device and system for a hinge angle of a rodless aircraft traction system, and the method comprises the steps: installing an industrial photogrammetry camera on a central axis of a tractor, guaranteeing the camera to be horizontal with the ground, employing the camera to shoot the rotation characteristics of an aircraft in a traction operation process, and obtaining a non-contact measurement result through pre-training a YOLOv8n-seg neural network; the method comprises the following steps: performing mask segmentation on an aircraft in an image, performing graying processing after type conversion to output the image, applying an edge detection operator to obtain specific coordinate information of an aircraft contour, performing Gaussian filtering and abnormal edge processing to obtain optimized contour coordinates, and performing ellipse fitting to obtain measured hinge angle information. By combining an advanced image processing technology and a machine learning algorithm, non-contact high-precision measurement of the hinge angle of the aircraft traction system is realized, and the method has the advantages of visual and convenient measurement result reading and high automation degree, and is suitable for an automatic and intelligent aircraft traction operation environment.

The invention discloses a bridge displacement measuring system and method. The system comprises a base, a vertical displacement measuring device and two horizontal displacement measuring devices which are arranged orthogonally. The vertical displacement measuring device directly measures the vertical displacement of the bridge through a sliding insertion rod with scales. Each horizontal displacement measuring device comprises a spherical hinge assembly and a connecting assembly, a sliding connector at the top end of the connecting assembly is clamped into a guide groove in the specific direction of the bottom face of the bridge, so that the combined displacement of the bridge is decoupled, each spherical hinge only responds to the horizontal displacement in the single direction, and the displacement angle is directly indicated through angle scales on the spherical face of the spherical hinge. According to the method, by means of the system, the vertical displacement of the bridge and the horizontal displacement information in the two orthogonal directions are synchronously obtained by reading the changes of the scales of the insertion rod and the spherical hinge angle. Synchronous and visual measurement of three-dimensional displacement of the bridge is achieved through a pure mechanical structure, external energy is not needed, and the device is firm, reliable, low in cost and suitable for long-term monitoring.

The invention relates to the technical field of secondary back ridge formworks, in particular to a bridge and culvert chamfering secondary back ridge formwork preparation method which comprises the steps that the target hinge angle of a first secondary back ridge and a second secondary back ridge is determined, and a hinge is installed; the theoretical overlapping length is calculated, and the notch position on the haunch angle section of the secondary dorsal arris is preliminarily determined; determining the compensation amount of the overlapping length; a notch is formed in the haunch angle section according to the actual overlapping length; the haunch angle sections of the secondary back ridges are hinged according to the actual overlapping length; the spliced secondary back ridges and the main back ridges are assembled; initial supporting prestress is applied to the back arris framework; according to the difference quantity of the gap values of the two ends of the haunch angle sections, the back plate assembling mode is determined, the pressurizing acceleration of the pressure for back plate assembling is adjusted, or the assembling and fastening sequence of the haunch angle sections is determined according to the difference direction of the gap values; and the back arris framework and the phenolic aldehyde laminated plywood are assembled according to a back plate assembling mode to form the bridge and culvert steel-wood combined formwork. The stable supporting capacity of the haunch structure is improved.

The present application relates to a kind of active hinged angle tracking control method based on sinusoidal trajectory of articulated vehicle, belong to vehicle intelligent control field.It aims to solve the problem of insufficient tracking accuracy caused by the step change of articulated angle when traditional articulated vehicle turns, the influence of nonlinear friction of hydraulic system and the risk of vehicle instability.The present application proposes: through path planning and cubic spline interpolation to generate smooth trajectory, the expected articulated angle is calculated through coordinate system conversion and kinematics model;Adopt Fourier series to decompose articulated angle into N order sine component, construct continuous and smooth bionic trajectory, eliminate step mutation;Based on articulated angle-hydraulic cylinder piston geometric constraint model, design adaptive tracking differentiator, robustly extract displacement high-order derivative through dynamic parameter adjustment mechanism, inhibit noise interference;Develop time-varying sliding mode controller, combine ATD output signal with asymmetric hydraulic cylinder model, use saturation function to suppress nonlinear friction buffeting, realize high-precision tracking of piston displacement.

The utility model discloses a one-piece hinge corner connector which comprises an upper hinge piece and a lower hinge piece, and the upper hinge piece and the lower hinge piece are rotationally connected through a hinge axis. The upper hinge piece is connected with an upper connecting plate, the lower hinge piece is connected with a lower connecting plate, and the upper hinge piece, the lower hinge piece, the upper connecting plate and the lower connecting plate are all provided with mounting holes; the upper connecting plate and the upper hinge piece are fixed to the bottom of the box cover through the mounting holes, the lower connecting plate and the lower hinge piece are fixed to the top of the box body through the mounting holes, a stable connecting foundation is provided, the multiple mounting holes are evenly distributed, stress is dispersed, looseness caused by too large single-point stress is avoided, the connecting reliability is enhanced, the stress of the axis of the hinge is more uniform through the staggered structure, and the service life of the hinge is prolonged. The bearing capacity and stability of the hinge are improved, the contact area between the hinge pieces and the box cover / box body is increased through the extension plates, the connection stability and torsion resistance are improved, the overall rigidity and impact resistance of the corner connector are improved, and the hinge is suitable for heavy box bodies or frequently-used box bodies.

The application discloses a kind of hinge type vehicle side slip angle measuring device and method, it is related to vehicle technical field, measuring device includes: inertial navigation system, first optical fiber gyroscope, angle acquisition unit and processing unit;Wherein, the gravity acceleration component of inertial navigation system is obtained to hinge type vehicle and angular velocity, the rotational angular velocity of first optical fiber gyroscope is obtained to rear vehicle body, angle acquisition unit obtains the hinge angle between front vehicle body and rear vehicle body, and processing unit is indirectly measured according to the gravity acceleration component, angular velocity, rotational angular velocity and hinge angle, and the centroid side slip angle of hinge type vehicle is obtained;Solve the current mine hinge type vehicle centroid side slip angle difficult problem of acquisition.

The present application relates to the technical field of agricultural equipment, and discloses a corn compacting device with adjustable pressure and a regulating method, which comprises an integrated bearing frame, a front lightweight connecting frame and a rear outer movable frame are connected through a first self-adaptive pressure regulating component to form a hinged linkage structure, and a double-wheel cooperative compacting system, the double-wheel cooperative compacting system comprises a pre-compacting wheel which is vertically hung at the bottom of the front end of the lightweight connecting frame through a second self-adaptive pressure regulating component, and the surface of the wheel body of the pre-compacting wheel is provided with spiral flow guide ribs and a variable eccentric counterweight component, the pre-compacting wheel as a front end component has a segmented floating structure (controlled by a floating connecting mechanism) which can actively adapt to ground undulation, so that suspension or impact caused by uneven terrain is avoided, and the main compacting wheel can respond to displacement feedback of the pre-compacting wheel in real time through hinged angle adjustment (controlled by the first self-adaptive pressure regulating component), so that stable ground pressure can be maintained in soft or hard soil areas, and the uniformity and adaptability of compacting operation are significantly improved.

The present disclosure provides a tailgate hinge gusset. An assembly includes a cross-beam, a post positioned adjacent one end of the cross-beam, and a reinforcement plate associated with the cross-beam. The reinforcing plate includes an extension portion. The assembly also includes a column bracket associated with the column, a corner plate associated with the column bracket, and a hinge bracket attached to the column bracket.

The application relates to a sewing device with a discharging traction device and belongs to the technical field of sewing devices. The sewing device comprises a rack, a traction belt, a first connecting arm and a second connecting arm, one end of the first connecting arm is hinged to one end of the second connecting arm, the other end of the first connecting arm is connected to the rack, and the other end of the second connecting arm abuts against a sewing material; the traction belt is sleeved on the outer peripheral walls of the first connecting arm and the second connecting arm, the first connecting arm is provided with a driving piece for driving the traction belt to rotate; and the first connecting arm is provided with an adjusting mechanism for adjusting the hinged angle between the first connecting arm and the second connecting arm. The application adjusts the distance between one end of the second connecting arm away from the first connecting arm and a sewing table through the adjusting assembly, so that the traction belt can conveniently traction the sewing materials with different thicknesses on the sewing table, the flexibility of the sewing device is effectively improved, and the quality of the sewing products is improved.

The utility model discloses a hinge with a rotary positioning function, which belongs to the field of hinges, and comprises a hinge component, a jacking component, a stabilizing component and a buffering component, the hinge component comprises a hinge upper part, the upper end of the hinge upper part is fixedly connected with a first hinge shaft, and one end of the first hinge shaft is provided with a hinge hole; a hinge lower part is hinged to the upper end of the hinge upper part, two second hinge shafts are fixedly connected to the upper end of the hinge lower part, a hexagonal hole is formed in one end of each second hinge shaft, a hexagonal block is clamped in each hexagonal hole, a positioning shaft is fixedly connected to one end of each hexagonal block, and the side surface of each positioning shaft is sleeved with a plurality of positioning sleeves; the hinge assembly is matched with the jacking assembly, the stabilizing assembly and the buffering assembly, so that the positioning effect after the angle of the hinge is adjusted can be remarkably improved, the use convenience is improved, and meanwhile the installation stability and the protection effect of the hinge are improved conveniently through mutual matching of the structures; and the practicability of the hinge can be enhanced.

The utility model relates to the technical field of brickwork carrying, and discloses a structural brickwork construction carrying tool which comprises two clamp handles connected to the outer side of a brickwork, the outer walls of the two clamp handles are fixedly connected with thickening sleeves, the centers of the two thickening sleeves are rotationally connected with a center shaft, and the center shaft is fixedly connected with the two clamp handles. The two ends of the center shaft are both slidably connected with inserting rods. The thickening sleeve, the side ring blocks, the inserting rods and the inserting grooves are arranged in a matched mode, the center shaft and the side ring blocks at the two ends can not rotate relatively, then the thickening sleeve and the handle are limited and fixed through the center shaft, the multiple inserting grooves are arranged, and the multi-angle limitation after brickworks with different thicknesses and clamp handles are rotated can be achieved; the limiting range can be limited according to different hinge angles of the carrying tool, and the limiting device is simple in structure, convenient to operate and high in practicability.

The invention relates to a universal robust path tracking control method and device for a multi-section trailer, and the method comprises the steps: selecting a proper angle sensor and a proper force sensor, measuring a hinge angle and a hinge force, and estimating a trailer pose and a trailer pose through a parameter estimation strategy facing a trailer system; and inputting a reference path, and calculating a course error and a lateral error of each unit by using a path tracking error model in combination with the current trailer and trailer poses. Based on the path tracking error, an improved sliding mode surface is constructed, and finite time convergence characteristics are obtained; the chattering phenomenon is attenuated by using a self-adaptive super-distortion algorithm; a self-adaptive state observer is used for accurately estimating concentrated interference including external interference and parameter uncertainty, measuring noise is restrained, and robustness and tracking precision of a controller are improved; and a state observer and a super-distortion algorithm are combined to construct an adaptive composite path tracking controller, the steering angle of each unit is calculated, and a reference path is accurately tracked.

The invention discloses an improved underground carry-scraper automatic driving reference path development method. According to the method, a geometric model of the carry-scraper, performance parameters of the carry-scraper and a kinematic model of the carry-scraper are combined, the hinging angle and the hinging angular speed of the carry-scraper when the carry-scraper runs on a reference path are estimated through a nonlinear optimization method, and then the minimum distance between a carry-scraper body and a roadway wall is estimated. According to the method, the number of reference paths needing real vehicle verification is effectively reduced by excluding the reference paths with the hinge angle or the hinge angular speed exceeding the performance of the carry-scraper and the distance between the vehicle body and the roadway wall smaller than the safety distance, and the development efficiency of the reference paths is greatly improved. Furthermore, a visual path analysis method with an interaction function is adopted in the method, the method is simple and visual, and the requirements for the technology and experience of operators are reduced.

The present application belongs to the technical field of vehicle steering control, and relates to a van semi-trailer steering synchronization angle closed-loop test calibration system. First, a static steering test is performed on an empty combined vehicle to construct a mapping reference table of the saddle space position and the ideal hinged angle. Then, a multi-condition dynamic steering test is performed on a loaded combined vehicle, and frame deformation data is collected in real time. The deformation data is converted into a hinged angle compensation value through a pre-trained deformation mechanics model, and selective correction of the measured hinged angle is performed based on a deformation compensation threshold value, so as to generate a calibration target to inversely analyze the target saddle position, effectively solving the problem that the prior art fails to fully consider and distinguish the elastic structure deformation that necessarily occurs in the actual dynamic load condition of the van semi-trailer and the real mechanical steering asynchronization fault. Subsequently, multi-condition driving verification data is collected to iteratively update the deformation mechanics model parameters and the compensation threshold value generation strategy, so as to realize closed-loop optimization.