6results about How to "Prevent forward movement" patented technology

The invention relates to the technical field of logistics sorting, in particular to an intelligent sowing wall sorting device which comprises a sowing frame and a plurality of material lattices formed in the sowing frame and distributed in a matrix mode, sliding ways are fixedly connected to the inner sides of the material lattices, and replacing mechanisms for replacing baskets are installed in the material lattices. And a conveying mechanism is jointly mounted on the front sides of the material grids in the same row. Baskets are replaced through linkage cooperation of the temporary storage assembly, the pushing assembly, the upward moving assembly and the conveying mechanism, after the baskets on the supporting plate are filled with commodities, the pushing assembly is used for pushing the empty baskets temporarily stored on the temporary storage assembly to move forwards to replace the filled baskets, and the baskets filled with the commodities are pushed forwards to the conveying mechanism; the conveying mechanism is used for conveying the baskets filled with the commodities to be packaged, people do not need to walk to the baskets to replace the baskets, and the basket replacing efficiency is improved.

The application discloses an injection molding part production and processing crusher and relates to the related field of plastic processing technology, which comprises a crushed material box and a crushed material roller, the crushed material roller is movably installed in the crushed material box, a plurality of groups of rotary hoppers and moving knives are annularly distributed on the surface of the crushed material roller, the rotary hoppers and the moving knives are alternately arranged, fixed knives are fixedly installed on the two sides of the crushed material roller in the crushed material box, a pushing rod is movably installed on the inner side of the rotary hopper, the cross section of the pushing rod is in a rhombic structure, a feeding chute is arranged at the upper end of the crushed material box, an elastic baffle is movably installed on one side of the upper end of the crushed material box, which is located at the feeding chute, and a feeding push plate is movably installed on the other side of the upper end of the crushed material box, which is located at the feeding chute.

This invention discloses an airborne tree branch cutting control method based on force feedback, relating to the fields of power line channel maintenance and aerial robot contact operation control technology. The method includes collecting contact force component data, armature current data, and feed acceleration data during the cutting process; obtaining an estimated environmental equivalent stiffness using an environmental stiffness observation model; outputting the tree branch fracture probability using a fracture prediction model; mapping desired damping and desired stiffness using an adaptive impedance control architecture; and calculating adaptive position commands for the flight platform and torque limiting commands for the cutting motor. This invention uses the environmental stiffness observation model and fracture prediction model to perceive the tree branch's flexible deformation and fracture trend in real time. It uses the adaptive impedance control architecture and admittance control law to suppress the flight platform's forward momentum at the moment of tree branch fracture and uses current energy spectral density to identify micro-flutter spectrum characteristics in advance to adjust torque and prevent jamming, achieving precise and safe cutting in unstructured high-altitude environments.

A hydraulic support thrust mechanism service life test device comprises a frame, a damping jack, a damping valve group, a tested hydraulic support, a liquid supply pump station and a control system. The damping jack is hinged between the frame and a push rod of the tested hydraulic support, and the damping jack is passively telescopic and used for generating resistance. The damping valve group is respectively connected with upper and lower cavities of the damping jack; the tested hydraulic support is placed on the frame and is limited to move by a limiting structure arranged on the frame; the liquid supply pump station is connected with the damping jack and the tested hydraulic support pushing mechanism through a hydraulic loop and used for supplying liquid to the damping jack and supplying liquid to the pushing jack and the bottom lifting jack of the tested hydraulic support. The control system is in signal connection with the tested hydraulic support pushing mechanism. The actual stress condition and the action sequence of the underground thrust mechanism can be truly simulated, and the whole service life of the hydraulic support thrust mechanism can be tested.

The invention discloses a fixing device for a ro-ro passenger ship vehicle, and relates to the technical field of ro-ro passenger ships, the fixing device comprises a frame body and a panel fixedly connected to the upper surface of the frame body, the frame body is used for positioning the device in the ro-ro passenger ship, when the fixing device is used, a groove is formed in the surface of the ro-ro passenger ship, the frame body is arranged in the groove body, and only the panel is exposed out of a ship body; the extrusion device is arranged, after the riding tires move to the upper surface of the panel, the extrusion device starts to work, so that the extrusion device enables the blocking device to protrude out of the panel, the automobile tires on the upper surface of the panel are blocked, and the effect that the blocking device protrudes out of the panel is achieved; the extrusion device is provided with a mechanism with a hydraulic function, a connecting frame fixedly connected to the outer surface of the extrusion device and a blocking device slidably connected to an inner cavity of the extrusion device, and the effect that an automobile is tightly connected with the ro-ro passenger ship together in the stormy wave environment is achieved.

The invention discloses a photovoltaic power station capable of preventing sand dunes from moving forwards in a desert region, which comprises a plurality of first upright posts, a plurality of second upright posts, a photovoltaic panel and a plurality of turbulent flow columns, and is characterized in that the plurality of first upright posts are arranged at intervals along a first direction, and the plurality of second upright posts are arranged at intervals along the first direction; the first stand column and the second stand column are arranged in a spaced mode in the second direction, and the first stand column is higher than the second stand column; the photovoltaic panel is obliquely arranged on the first stand column and the second stand column; the multiple turbulent flow columns are arranged on the side, away from the first stand column in the second direction, of the second stand column at intervals, each turbulent flow column comprises a column body and multiple turbulent flow rods, and the multiple turbulent flow rods are arranged on the peripheral face of the column body at intervals. According to the photovoltaic power station, the undercutting phenomenon and the sand dune forward moving phenomenon can be avoided in the desert region, the structural stability of the stand columns is greatly improved, and the photovoltaic power station has the advantage of being high in use safety.