714 results about "Mecanum wheel" patented technology

A mobile robot configured to be widely versatile in its use. For example, the mobile robot can be configured for being used on a wide assortment of surfaces, regardless of the orientation and/or shape of the surfaces. Alternatively or in combination, the mobile robot can be configured for effective and efficient movement on the surfaces it traverses. In some cases, the mobile robot is configured with two or more component units. In some cases, the component units are configured with magnets and a control system for orientating the magnets. In some cases, one or more component couplings join the component units. In some cases, the mobile unit is configured with Mecanum wheels.

The invention discloses an omni-directional automatic forklift and a 3D stereoscopic vision navigating and positioning method. The 3D stereoscopic vision navigating and positioning method comprises the following steps: acquiring information of a 3D coordinate in the working environment of the automatic forklift; generating a 3D map; acquiring real-time images and positioning an initial position according to the 3D map; determining a target position; navigating to the target position and judging whether encountering barriers; scanning and identifying two-dimensional codes on a goods shelf; judging whether the automatic forklift is over against the goods and is aligned with the goods; enabling the automatic forklift to insert into a goods shelf tray and completing taking the goods and putting the goods. The omni-directional automatic forklift and the 3D stereoscopic vision navigating and positioning method have the benefits that the 3D map of the working environment is built by a plurality of binocular stereo cameras, the automatic forklift is capable of effectively and accurately positioning, taking the goods and putting the goods with combination of a speedometer, a laser radar and a front camera, three-freedom-degree omni-directional movement on the plane is implemented by Mecanum wheels, the automatic forklift is capable of taking the goods and putting the goods on the same goods shelf without steering, any barriers in the working environment can be effectively avoided in tine by the laser radar and an infrared sensor, and the automatic forklift can be automatically charged by communication between an upper computer and a charging box.

The invention discloses an omni-directional intelligent electric wheel chair, which comprises a chassis frame and a seat, wherein the two sides below the chassis frame are respectively hinged with an actuating arm of which the left and the right correspond; the actuating arm is connected with Mecanum wheels which can be used for forming a pair of front wheels and a pair of rear wheels; the two sides below the seat, the front part of the seat and the upper parts of the front wheels are respectively provided with an ultrasonic sensor; the outer sides of the Mecanum wheels are respectively provided with an infrared sensor; a handle of the seat is provided with a control box and an operating handle; the actuating arm is also provided with a drive control board; and a drive control board circuit is connected with a digital signal processor (DSP). Compared with the conventional two-wheeled rear-drive electric wheel chair, the omni-directional intelligent electric wheel chair provided by the invention has omni-directional moving abilities, such as lateral direction, slant direction and the like, and has larger movement flexibility; and environment around the wheel chair can be detected through the ultrasonic sensor and the infrared sensor, so as to provide a rider with information of a barrier which can hinder the wheel chair to move, realize that the rider can automatically avoid the barrier when driving the wheel chair or can brake the wheel chair, improve use safety of the wheel chair.

The invention discloses an all-round automatic transport vehicle, which can realize the automatic process of picking up and loading goods in a narrow space. The omnidirectional automatic transport vehicle includes an omnidirectional movement mechanism, a lifting mechanism, a telescopic mechanism and a control system; the omnidirectional movement mechanism consists of four omnidirectional mecanum wheels; the lifting mechanism consists of a bevel gear mechanism, a ball screw pair and a scissor mechanism Composition; telescopic mechanism is composed of electric push rod, roller slideway and connecting rod support structure. The control system drives the mecanum wheel to realize the forward and backward movement, left and right movement, oblique movement and zero-radius turning of the transport vehicle; the movement of the bevel gear transmission mechanism makes the scissors move to realize the lifting of the platform; the movement of the electric push rod makes the platform extend and reach retract.

The invention discloses a carrying and docking assembly for large-size heavy-load cylindrical workpieces, comprising a carrying platform, a posture adjusting and docking assembly and a support assembly, wherein the carrying platform comprises a Mecanum wheel omni-directional platform and an air cushion platform which are connected with each other by a connecting assembly and can displace up and down; the posture adjusting and docking assembly comprises four groups of triaxial mobile locating devices, a bracket, laser distance measuring sensors, a controller and a bracket; the three laser distance measuring sensors in triangular arrangement are arranged on the bracket; three target balls are arranged on the support assembly; and the controller is used for receiving data measured by scanning the target balls with the laser distance measuring sensors and controlling the triaxial mobile locating devices to act to achieve butt joint of an active butt joint workpiece and a passive butt joint workpiece. The docking device is suitable for mobile carrying and assembly butt joint of large-size heavy-load cylindrical workpieces by utilizing flexibility of the Mecanum wheel omni-directional platform and loading characteristics of the air cushion platform and simplifying the setting of the sensors by adopting a method of determining a plane with three points.

The invention relates to a Mecanum wheel omni-directional mobile inspection robot. The Mecanum wheel omni-directional mobile inspection robot comprises a movable chassis, a movable vehicle body, a monitoring device and a remote control device, wherein the movable chassis comprises a driving device, a navigation positioning device, a control device, a power supply and a charging device, the driving device comprises vehicle wheels and a transmission device, the navigation positioning device comprises a magnetic field sensor and a radio frequency identification reader-writer, the control device comprises a control mainboard and a communication device, the power supply is electrically connected with the control device and used for supply power to the movable chassis, the charging device is electrically connected with the power supply and used for charging the power supply; the movable vehicle body is fixed on the movable chassis; the monitoring device is arranged on the movable vehicle body and comprises a video monitoring device and a monitoring sensing device. The Mecanum wheel omni-directional mobile inspection robot can achieve actions such as start and stop or track transformation according to the set requirements in any position so that the comprehensive inspection of electrical equipment within the inspection range can be achieved.

The invention relates to a ventilation pipeline cleaning robot with a variable structure. The ventilation pipeline cleaning robot comprises a car body, a walking driving device, a pipe diameter self-adaption adjustment device, a cleaning device, a detecting device, a walking assisting device and a main control box. The main control box is in line connection with the walking driving device, the pipe diameter self-adaption adjustment device, the cleaning device, the detecting device and the walking assisting device and controls the walking driving device, the pipe diameter self-adaption adjustment device, the cleaning device, the detecting device and the walking assisting device to move. The ventilation pipeline cleaning robot has the beneficial effects that a cleaning range is increased through a cleaning arm with multiple degrees of freedom; a cloud platform is favorable for rotation of a camera, so that a visual range is increased; Mecanum wheels are independently driven, so that moving in any direction is realized, and the flexibility and obstacle avoidance ability of the robot are improved; by arranging the self-adaption adjustment device, the ability of adapting to pipe diameter change of the robot is improved, and the walking assisting device mounted on the car body in a matched mode more effectively guarantees the stability of walking; and a vision sensor and a distance measuring sensor guide the robot to complete detection and cleaning tasks, so that the intellectualization degree is high.

The invention discloses a railless automatic transfer butt joint platform. The railless automatic transfer butt joint platform comprises a transfer platform, a gesture adjusting mechanism a, a gestureadjusting mechanism b, a linear guide rail a and a rack; the rack and the linear guide rail a are mounted in parallel; the gesture adjusting mechanism a and the gesture adjusting mechanism b are mounted on slide blocks on the linear guide rail a; the transfer platform is driven by adopting multiple pairs of Mecanum wheels; the gesture adjusting mechanism a comprises a front-back moving mechanism,a lifting mechanism, a left-right translation mechanism, a gap elimination rolling mechanism and a diameter adjusting tool; the front-back moving mechanism comprises a motor a, a clutch a, speed reducer a and a straight gear a; when a motor of the gesture adjusting mechanism a moves front and back, the clutch a is closed, and the motor a drives the speed reducer a through the clutch a, so that the straight gear a is rotated and engaged with a rack of the transfer platform to drive the gesture adjusting mechanism a to advance along the linear guide rail a; and when the gesture adjusting mechanism a manually advances, the clutch a is off, and the gesture adjusting mechanism a is manually pushed to advance.

The invention discloses a nursing robot and a motion control system. The nursing robot comprises a hardware platform and the motion control system. The hardware platform comprises an omni-directional moving chassis, a body skeleton structure, an autonomous charging module, a binocular vision module, a mechanical arm module and a display screen module. According to the motion control system, a generalized matrix is used for conducting positive and athwart kinematics analysis on the moving chassis with four Mecanum wheels being distributed in a rectangular mode, and closed-loop control and feedback of the center speed of the chassis are achieved; obstacle avoidance control over the chassis is achieved based on ultrasonic sensors in the four directions of the chassis and a speed value linear mapping set threshold value. The motion control system achieves the functions of flexible omni-directional movement, autonomous obstacle avoidance, autonomous charging and the like of the nursing robot. The nursing robot is an intelligent indoor moving robot, and the diversified demands for life assisting of the old are met.

The invention discloses a pickup truck type vehicle-mounted unmanned aerial vehicle intelligent take-off and landing and autonomous endurance system and belongs to the technical field of unmanned aerial vehicle design. The system comprises three parts of a lifting platform device, an unmanned aerial vehicle automatic charging device and algorithms of the landing algorithm and the omnidirectional positioning algorithm, wherein the landing algorithm and the omnidirectional positioning algorithm are based on the visual sense and Mecanum wheels. The four Mecanum wheels are installed at the bottomof an undercarriage of an unmanned aerial vehicle, and the purpose of omnidirectional movement of the unmanned aerial vehicle on a platform can be achieved through cooperation with a visual camera ofthe unmanned aerial vehicle and an omnidirectional movement algorithm based on the Mecanum wheels. Through a mechanical transmission principle, the lifting platform is designed to be of a space connecting rod lifting structure with sliding rails, and the structure can achieve conversion between rotating motion on the plane and rectilinear motion perpendicular to the plane. Only driven by gear motors, a lower rotating face rotates at a certain angle, the unmanned aerial vehicle landing platform can be correspondingly lifted up or lowered, rotation of the rotating face is then locked through thegear motors, and therefore it can be guaranteed that the height obtained after adjustment is unchangeable.

The invention provides a Mecanum wheel omnidirectional mobile vehicle and a working method of the Mecanum wheel omnidirectional mobile vehicle, relates to an omnidirectional mobile vehicle provided with a Mecanum wheel and a working method of the omnidirectional mobile vehicle which are particularly applicable to realizing omnidirectional movement of the vehicle in a narrow space, and provides the Mecanum wheel omnidirectional mobile vehicle with four wheels uniformly grounded and having capability of keeping a frame horizontal to the greatest extent and the working method of the Mecanum wheel omnidirectional mobile vehicle. The Mecanum wheel omnidirectional mobile vehicle comprises a frame, a power supply, a controller and Mecanum wheels, wherein the Mecanum wheels are connected to the bottom of the frame through an air bag suspending device; the air bag suspending device comprises a damper, an air bag, an air supply, an air valve and a height adjusting device; tops of the damper andthe air bag are fixedly connected to the bottom of the frame; an axle of the Mecanum wheels is connected to the bottom ends of the damper and the air bag; and the air bag is connected with the air supply through the air valve. According to the Mecanum wheel omnidirectional mobile vehicle, closed-loop control is performed over the horizontality of the frame and the distance from the frame to the wheels, so that the wheels provided by the invention are adaptable to the application requirements of special industry.

The invention discloses an electric omnidirectional mobile lift. The lift comprises an omnidirectional mobile chassis, a lift platform which is arranged on the omnidirectional mobile chassis through a lift system and used for carrying people or cargo; and four independent driving Mecanum wheel assemblies are arranged at the bottom of the omnidirectional mobile chassis. The electric omnidirectional mobile lift has higher flexibility, maneuverability and accurate positioning capability, and can be applied to butt assembly of large and important equipment and special application situations so as to save at least half the time.

The invention discloses a heavy-load automated guided vehicle. Mecanum wheel drive mechanisms are installed on the bottom of a frame and drive the frame to move in an all-dimensional mode; a lifting mechanism is installed on the frame, and a work table is installed on the lifting mechanism; a magnetic navigation sensor is installed on the bottom of the frame, detects ground magnetic stripes and drives the frame to drive along the magnetic stripe; an RFID landmark sensor is installed on the bottom of the frame, recognizes the landmark information for obtaining the position coordinates and implements the starting action, the stopping action and the turning action according to commands; a vehicle-mounted power source supplies power to the Mecanum wheel drive mechanisms, the lifting mechanism, the magnetic navigation sensor, the RFID landmark sensor and a PLC, and the PLC controls the Mecanum wheel drive mechanisms, the lifting mechanism, the magnetic navigation sensor and the RFID landmark sensor to work. The heavy-load automated guided vehicle can transfer material efficiently, accurately and flexibly, realizes logistics automation, improve the production efficiency and lower the production cost.

The invention discloses an omnidirectional mobile platform for Mecanum wheels. The omnidirectional mobile platform comprises a frame, the Mecanum wheels, independent suspension modules, power transmission devices, a master control box and a battery pack. Each Mecanum wheel is arranged below the frame through the corresponding independent suspension module. The master control box can cooperatively control the rotation speeds and steering of all the Mecanum wheels. Each independent suspension module comprises two cantilevers arranged in parallel, a connecting board fixedly connecting the two cantilevers and a damper; one end of each damper is connected with the corresponding connecting board, and the other end of each damper is connected with the frame; and one end of each of every two cantilevers is connected with a transmission shaft through bearings with seats, wherein each transmission shaft is sleeved with the corresponding Mecanum wheel. After the structure is adopted, the omnidirectional movement can be flexibly achieved in the plane, the structure is simple and reliable, the overall bearing capacity is high, it can be guaranteed that the Mecanum wheels can make full contact with the ground, and the operation stability and control accuracy of the mobile platform are improved; and meanwhile the mobile platform has the beneficial effects of being compact in structure, high in applicability and suitable for popularization.

The invention discloses an omni-directional mobile transportation robot. The omni-directional mobile transportation robot comprises a shear type lifting mechanism and a car body, wherein the shear type lifting mechanism is fixed on the car body and comprises a transportation table, a screw sliding table, a stepping motor and a shear type support, and the stepping motor drives the screw sliding table to move and then controls the transportation table to lift and drop; the car body comprises a frame, a walking mechanism and a lower panel; the walking mechanism comprises Mecanum wheels, wheel motors, suspensions and motor mounting plates; a storage battery, a control panel, a brushless DC motor drivers, a Bluetooth expansion board, a voice sensor, an obstacle avoidance sensor and a stepping motor driver are fixed on the lower panel; tracking sensors are arranged on the walking mechanism. The transportation robot can realize omni-directional movement, transports objects flexibly, has a transportation table lifting function and can select and switch a control mode according to different working environments and transportation requirements, and therefore, adaptability and working efficiency of the transportation robot can be improved.

The invention discloses an error model predictive control method based on kinematics modeling of omnidirectional mobile robots. The error model predictive control method comprises the following stepsthat S11, a velocity constraint kinematics model is established between FM-OMR four Mecanum wheels; S12, a tracking error kinematics model of a FM-OMR is established; S13, aiming at the trajectory tracking problem of the FM-OMR and the tracking error kinematics model, an error model predictive controller combined with a velocity constraint equation is designed; and S14, according to the error model predictive controller, effective trajectory tracking parameters between the omnidirectional mobile robots are controlled so as to enable tracking errors between the omnidirectional mobile robots toremain unchanged. According to the error model predictive control method based on the kinematics modeling of the omnidirectional mobile robots, the error model predictive control method based on the trajectory tracking error kinematics modeling is provided aiming at the omnidirectional mobile robots with the four Mecanum wheels, the non-holonomic constraint problem of the effective trajectory tracking control is solved, and the accuracy and the validity are realized.

The invention discloses an omnidirectional mobile platform with a shock absorbing device, which belongs to the field of omnidirectional mobile platforms. The omnidirectional mobile platform with a shock absorbing device includes a vehicle frame, a mecanum wheel and a motor drive mechanism. The frame is provided with a motor seat for fixing the motor drive mechanism, and the output end of the motor drive mechanism is provided with a hub for fixing the mecanum wheel, and it is characterized in that the frame and the motor seat A shock absorber is arranged between them, and the shock absorber includes a damping spring and a pair of shock absorbers installed symmetrically with respect to the damping spring. The invention can passively adapt to uneven terrain, ensure that all mecanum wheels can touch the ground and share the load of the omni-directional mobile platform, improve the controllability and obstacle-surpassing ability of the omni-directional mobile platform, and at the same time reduce the Vibration during exercise.

A width variable structure of a moving and transport means using mecanum wheels is provided, which includes a plurality of mecanum wheels, a plurality of links connecting the mecanum wheels, and motors mounted on the mecanum wheels to transfer driving forces to the links, respectively. Since the width of the moving and transport means in the horizontal and vertical directions can be adjusted using the driving forces of the mecanum wheels, components such as actuators are omitted from the present invention in the overall assembly.

The invention discloses an aeroengine installation vehicle which comprises a bottom platform, a lifting mechanism, a transverse-vertical sliding platform, an installation support, a posture adjusting mechanism and an aeroengine support. Multiple Mecanum wheels are arranged under the bottom platform; the lifting mechanism is located between the transverse-vertical sliding platform and the bottom platform; the transverse-vertical sliding platform is provided with a support part and a sliding part located over the support part, and the sliding part can slide along the support part towards the transverse and vertical direction of the bottom platform; the installation support is fixed above the transverse-vertical sliding platform, and the posture adjusting mechanism is arranged between the installation support and the aeroengine support. The installation vehicle is convenient to operate.

The invention discloses a Mecanum-wheel-driven type spherical mobile robot. The robot comprises a rigid spherical shell, four automotive pneumatic rods serving as struts, a rack, two Mecanum wheels, hub motors inside the Mecanum wheels, a power supply module, a wireless charging device of the power supply module, and a main control module. The two Mecanum wheels provide two perpendicular driving forces by being symmetrically fixed on the rack and being orthogonally arranged; one ends of the four struts are fixedly connected with the rack and the other ends of the four struts are in contact with the inner surface of the spherical shell; moreover, the four pneumatic rods are uniformly distributed in the same plane vertical to the plane where the wheels are positioned and a six-point stable supporting structure is formed by the four pneumatic rods and the two wheels. The control module, a battery and the other devices are all fixed on the rack and the integral internal structure is simplified to the greatest extent. According to the invention, the internal structure of the spherical robot is simplified and energy loss of contact drive is reduced.