6results about How to "Quick and accurate" patented technology

The invention provides a continuous knotting test bench for multiple knotters, comprising a rope pulling system I, a rope releasing device II, a main shaft transmission system III for a knotter, a motor drive system IV, a control system V, a frame VI and a rope pre-tightening force adjusting device VII; the rope pre-tightening force adjusting device VII is used for clamping the rope and tightening it, the control system V controls the motor drive system IV so that the rope needle of the main shaft transmission system III of the knotter sends the rope to the knotter, the rope pulling system I forms a rope loop to be knotted with the rope, the motor drive system IV drives the main shaft transmission system III of the knotter so that the knotter completes the knotting action, and the rope releasing device II brushes the knotted rope loop off the rope pulling system I; the continuous knotting process of multiple knotters under the condition of grass bale rebound can be simulated, the knotting speed can be controlled by adjusting the rotation speed of the motor drive system, and the continuous knotting of multiple knotters can be automatically realized at the same time, thereby reducing the time consumed in the test process, improving the test efficiency and the knotting quality, and reducing the failure rate.

This utility model discloses a gripping and rotating coordinated apple-picking end effector, installed at the end of a picking robotic arm, comprising a cylindrical housing, a linear motor, a transmission mechanism, and a gripper assembly. The transmission mechanism converts the linear motion output by the linear motor into linear and rotational motions. The gripper assembly opens and rotates via an upward motion, and closes and rotates in the opposite direction via a downward motion to twist and break the fruit stem. The transmission mechanism uses a pin sleeve in cooperation with a central groove shaft, and achieves step-by-step movement through a spiral groove and a limiting groove structure. The gripper assembly completes clamping and twisting through a guide ridge and a hinge seat. This design simplifies the drive structure, reduces costs, improves reliability and picking efficiency, and is suitable for apple picking scenarios with short stems and dense branches.

The utility model discloses a CT self-power-taking protection device, and belongs to the technical field of power relay protection. The device comprises a fault current detection loop, a CT power taking loop and a self-protection module. The fault current detection loop is composed of a phase current detection device, a zero-sequence current synthesis detection device and an over-current fuse device and is used for detecting an inter-phase and zero-sequence over-current fault, and the over-current fuse device is fused when the fault occurs; the CT power taking loop is provided with a rectifier bridge, a CT opening voltage storage capacitor, a high-voltage trigger conduction diode and an output loop, CT opening energy can be obtained through the voltage storage capacitor and the diode, and the output loop drives a trip coil to trip off a circuit breaker to cut off a fault loop; the self-protection module comprises an overvoltage protection loop and an overcurrent protection loop, is composed of a current-limiting resistor, and can clamp and discharge abnormal high voltage and overcurrent in the loop. The device adopts a full-analog circuit design, has the advantages of quick response, high reliability, strong interference resistance and the like, can quickly and accurately act in a complex electromagnetic environment, and effectively guarantees the safety of a power system.

The invention discloses a shield rapid deployment and retraction mechanism, comprising a shield rotation mechanism, a shield flipping mechanism and a shield translation mechanism; the shield rotation mechanism is mounted on a chassis, the shield flipping mechanism is mounted on the shield rotation mechanism, and the shield translation mechanism is mounted on the shield flipping mechanism; the shield rotation mechanism comprises a rotation frame, and the rotation frame can rotate relative to the chassis; the shield flipping mechanism comprises a flipping frame and a flipping electric push rod; the shield translation mechanism comprises an upper shield and an upper shield buffer frame; the upper shield and the upper shield buffer frame can rotate relative to the flipping frame. The shield rapid deployment and retraction mechanism designed by the invention has a simple structure, a high degree of automation, and can quickly realize the automatic deployment and retraction of the shield. After deployment and retraction, space can be saved, and three actions of rotation, flipping and translation can be performed simultaneously. The action is rapid and accurate, manpower is reduced, reliability is high, and the safety of personnel in dangerous environments is improved. It can be widely used in urban anti-terrorism, security protection, training exercises and other occasions.

The present invention belongs to the technical field of aerial work equipment, and discloses a rocker automatic centering device and a design method. The rocker automatic centering device includes: a fixed seat, provided with a through hole and an annular groove, the annular groove is concentric with the through hole, and the bottom of the annular groove is an arc shape; a rocker body, which is penetrated in the through hole and is installed with a spacer ring; a wear-resistant sleeve, which is sleeved on the rocker body, and the bottom of the wear-resistant sleeve is in contact with the bottom of the annular groove; a centering spring, which is sleeved on the rocker body, and the two ends are respectively against the wear-resistant sleeve and the spacer ring; the rocker body includes an initial position and a maximum deflection position, and the centering spring is used to drive the rocker body to switch from the maximum deflection position to the initial position; a connecting assembly, which is installed on the fixed seat and hinged with the rocker body, and the connecting assembly is used to ensure that when the rocker body is in the initial position, the central axis of the rocker body coincides with the center line of the through hole. The rocker automatic centering device according to the embodiment of the present invention has a simple structure and good stability, and can ensure the rapid and accurate centering of the rocker body.

The invention belongs to the technical field of automatic parking. The invention provides an automatic parking path planning method and system, a medium, a product, equipment and a vehicle, and is used for lateral parking of a rectangular parking space, so that the vehicle enters the rectangular parking space along a parking path, and the parking path sequentially comprises a first clothoid, a first circular curve, a second clothoid, a first straight line, a third clothoid and a second circular curve. The vehicle is controlled to walk along an adjusting path to complete final parking, the adjusting path comprises a forward road section and a backward road section, the forward road section sequentially comprises a fourth clothoid, a fifth clothoid, a third arc curve, a sixth clothoid, a seventh clothoid, a fourth arc curve and an eighth clothoid, and the backward road section is a second straight line; according to the method, the clothoid, the straight line and the circular curve are combined for planning, smooth transition between paths with different curvatures is achieved, and accurate and automatic lateral parking under the condition of small parking spaces is achieved.