10results about How to "Steering precision" patented technology

The invention relates to the technical field of medical instruments, in particular to a piezoelectric driving miniature optical probe for cerebrovascular interventional imaging, which comprises a glass tube base body, a single piezoelectric ceramic piece and the like, and is characterized in that the glass tube base body is of a hollow cylindrical structure, and an inclined groove is formed in the axial center of the glass tube base body; the single piezoelectric ceramic piece is fixed on the outer side of the glass tube base body. Through a hollow rod type stator structure composed of a single piezoelectric ceramic piece and a glass tube base body with a 10-degree inclined groove, mode conversion from longitudinal vibration to longitudinal-torsional coupling vibration is achieved, an elliptical motion track is formed at the position of a miniature magnetic ring at the front end of the stator, 360-degree optical scanning is achieved through friction driving of a rotor, and the mechanical property of the motor is improved. Compared with a traditional far-end miniature probe with the diameter usually larger than 1.5 mm, the whole outer diameter of the probe is reduced to 0.4 mm, and smooth navigation and passing in tortuous and narrow brain middle artery (the diameter is usually smaller than 0.5 mm) are easier.

The utility model discloses a multi-directional climbing device for a transmission tower, which comprises a multi-directional climbing module and a base. The multi-directional climbing module includes a clamping mechanism, a climbing mechanism and a steering mechanism. Among them, the clamping mechanism and the climbing mechanism are connected through the steering mechanism. The clamping mechanism is used to clamp or loosen the tower during climbing; the climbing mechanism adopts a screw drive mechanism, and transmits the power of the rotating motor to the ball screw through a synchronous pulley assembly, so as to drive the ball screw platform to complete longitudinal movement; the steering mechanism is used to cooperate with the movement of the clamping mechanism during climbing, so that the device can smoothly turn when reaching the cross arm of the tower. The device of the utility model can climb and cross obstacles, is applicable to transmission towers of different structural types including main material angle steel and cross arms, has a strong load capacity, and can carry maintenance equipment to complete maintenance tasks.

This utility model belongs to the field of photovoltaic cleaning robot technology, and discloses a fixed-point steering device, a photovoltaic cleaning robot, and a photovoltaic cleaning robot system. The suction cup assembly of the fixed-point steering device includes a suction cup, a connecting tube, and a gas adapter. The suction cup has suction holes, one end of the connecting tube is connected to the suction cup, and the gas adapter is rotatably connected to the other end of the connecting tube. The gas adapter is used to connect a vacuum pump. The lifting drive assembly is located on the chassis frame and includes a drive component and a floating lifting component. The drive component is located on the chassis frame, and the floating lifting component is connected to the output end of the drive component. The floating lifting component is movably connected to the connecting tube and is used to drive the connecting tube to rise and fall along its own axis. The connecting tube is configured to move relative to the floating lifting component along its own axis. The above-mentioned connecting tube will not drag the drive component when adapting to the concave area of ​​the walking surface, reducing the risk of damage to the drive component, reducing air leakage from the suction cup, and improving steering stability and accuracy.

The present application relates to a control system and method for a steering device of a rear wheel of a vehicle, the system comprising: a first magnet mounted to a steering application mechanism; a second magnet mounted to a rotor of a motor; a first magnetic sensor detecting a first magnetic field intensity of the first magnet and a change speed thereof to generate a first detection value of a linear displacement; a second magnetic sensor detecting a second magnetic field intensity of the second magnet and a change speed thereof to generate a detection value of a rotational displacement; and a control unit acquiring the first detection value of the linear displacement from the first magnetic sensor, acquiring the detection value of the rotational displacement from the second magnetic sensor, determining a second detection value of the linear displacement based on the detection value of the rotational displacement, determining an output value of the linear displacement based on the first detection value and the second detection value of the linear displacement to represent a steering angle of the rear wheel of the vehicle, and controlling an energization state of the rotor of the motor based on an offset distance of the output value of the linear displacement with respect to a reference zero position. The system and method of the present application are accurate and safe.

The invention discloses a multifunctional electric skateboard luggage case, and relates to the technical field of electric skateboard luggage cases, the multifunctional electric skateboard luggage case comprises a skateboard assembly, and the skateboard assembly is composed of a bottom plate, a middle shell and a top plate in sequence from bottom to top. A driving assembly, a clutch assembly and a closing assembly are arranged in the machine shell assembly, an auxiliary assembly is arranged outside the machine shell assembly, and a detachable box body assembly is arranged on the top plate. The driving assembly drives a middle plate to ascend and descend through a three-stage electric cylinder, then the rollers are controlled to stretch out and retract, and sliding power and direction control are provided through a double-shaft motor and a motor respectively. The clutch assembly and the closing assembly are used for locking the moving plate and closing the square hole correspondingly, the rolling wheel is protected, and sundries are prevented from entering. And the box body assembly is quickly connected and locked with the top plate through the plug pin and the lock pin, so that luggage is convenient to carry. And the accessory assembly comprises a telescopic pull rod and a pedal, so that the use convenience and comfort are improved. The multifunctional luggage carrier integrates sliding and luggage carrying, and is diversified in function, easy and convenient to operate and suitable for various scenes.

The utility model discloses an electric welding vehicle, which comprises a vehicle frame, a closed partition plate arranged at the front end of the vehicle frame, a lifting device arranged at the outer side of the closed partition plate, and a gas cylinder placed on the lifting device. The lifting device comprises a pulley block, a winding drum and an extension support. The upper end of the extension support and the pulley block are both fixed on the closed partition plate. The lower end of the extension support is provided with a steel wire rope. The steel wire rope is connected with the winding drum through the pulley block. The winding drum is driven by a winding handle. The extension support is provided with a locking hole. The extension support is locked at different extension lengths by a locking pin. The bottom of the vehicle frame is provided with an electric power driving walking system for driving the welding vehicle to move. The problems of gas cylinder carrying and fixing difficulty, equipment tool storage disorder and wire feeding machine winding are solved.

This utility model discloses a double-sided cable trench trolley, belonging to the technical field of cable trench trolleys. This double-sided cable trench trolley includes a main body, a moving mechanism, and a steering mechanism. The main body includes a cable trench trolley body, with a pair of movable slots at both ends. A sliding sleeve is installed at the bottom of each movable slot, and a moving block is slidably installed inside each sliding sleeve. The steering mechanism includes four steering boxes, the upper ends of which are rotatably fitted onto the bottom ends of the moving blocks. A steering wheel is rotatably connected to the bottom end of each steering box. The moving mechanism includes a pair of moving boxes, respectively located on both sides of the bottom end of the cable trench trolley body. Several driven wheels are rotatably connected to one side of the moving box, and a drive wheel is rotatably connected to the other side. This utility model effectively improves the practicality of the double-sided cable trench trolley and has high practical value.

The application discloses a structure of a pneumatic driving continuum robot with asymmetric stiffness, comprising: a bone joint, a plurality of groups of bone joints are arranged, and the bone joints are sequentially connected in series to form a robot main body structure; a direction changing assembly is arranged between adjacent bone joints, the direction changing assembly comprises two groups of symmetrically arranged pneumatic half bellows, and the two groups of pneumatic half bellows are symmetrically arranged between the adjacent bone joints; a penetrating module is arranged, and the plurality of groups of bone joints are connected in series through the penetrating module; a pneumatic module is connected with the pneumatic half bellows and drives the pneumatic half bellows to deform; wherein, the adjacent bone joints are connected through a mortise and tenon structure. The application has different motion characteristics in different directions, can adapt to complex and changeable working environments, and improves the environmental adaptability of the robot. The two groups of symmetrically arranged pneumatic half bellows in the direction changing assembly combine the asymmetric stiffness characteristics, so that the robot turns more flexibly and accurately, and can complete a complex motion trajectory.