7results about How to "Low driving power" patented technology

The utility model relates to a kind of single-motor clutch type power head of trenchless drilling rig, including box, hydraulic motor is provided outside box;It further includes spline shaft, first spline gear, second spline gear, double spline sleeve, push rack, inner shaft and outer shaft;The number of hydraulic motor is only one, first spline gear is located on spline shaft, inner shaft and outer shaft are rotatably connected with box;Inner shaft is driven gear and first spline gear transmission connection;Second spline gear is rotatably connected with box, double spline sleeve is movably arranged on spline shaft, push rack can drive double spline sleeve along spline shaft to engage or separate second spline gear, outer shaft is driven gear and second spline gear transmission connection.The utility model reduces two hydraulic motors to one under the premise of realizing the common drive and separate drive of inner drill rod and outer drill rod of inner and outer drill rod, reduce the weight of double drive power head, simplify the hydraulic system of trenchless drilling rig.

The application discloses a front light guide plate for a reflective display device and a manufacturing method thereof, comprising a light guide plate body with an incident light surface and an exit light surface oppositely arranged; a plurality of light guide dots formed on the exit light surface for guiding light from the incident light surface to a display surface of the reflective display device; wherein the light guide dots are conical or pyramidal; when the light guide dots are conical, the ratio of the bottom width A to the depth B is less than 0.1; when the light guide dots are pyramidal, the included angle between the inclined surface and the bottom surface is between 55 degrees and 70 degrees. The application optimizes the shape parameters of the dots, so that the light is more efficiently guided to the display surface, thereby significantly improving the overall display brightness under the same light source conditions.

This utility model discloses a coal mine transportation and pushing device, specifically relating to the field of coal mine transportation technology. It includes a conveyor platform, with a support and adjustment device fixedly connected to the lower end of the conveyor platform. A base plate is fixedly connected to the lower end of the support and adjustment device. A fixed frame is fixedly connected to the upper right side of the conveyor platform, and a dust collection and filtering device is fixedly connected to the upper end of the fixed frame. The coal mine transportation and pushing device of this utility model can be flexibly adjusted by tilt angle, enabling the coal mine transportation equipment to combine high efficiency, safety, and economy. Coal mine roadways have varying slopes; the adjustable tilt angle allows the equipment to quickly match the roadway undulations, avoiding material accumulation or slippage due to incompatible slopes. The same equipment can adapt to different transportation needs through angle adjustment, reducing equipment model dependence. An appropriate tilt angle can accelerate the descent of materials using their own weight, reducing conveyor belt drive power and saving energy consumption. The tilt angle also helps materials flow smoothly, improving transportation continuity.

The utility model discloses a multi-motor driving type compact shelving moving column, a compact shelving moving column chassis is provided with at least two driving motors, at least two motor driving output shafts and at least two compact shelving chassis rollers, and the motor driving output shaft of each driving motor is respectively provided with a corresponding compact shelving chassis roller; when the two driving motors are adopted, the two driving motors, the corresponding motor driving output shafts and the compact shelving chassis rollers are respectively distributed at two end head areas close to the length direction of the compact shelving moving column; and when more than two driving motors are adopted, except that the two driving motors are respectively distributed and mounted at two end head areas close to the length direction of the movable column of the compact shelving, the other driving motors, the corresponding motor driving output shafts and the compact shelving chassis rollers are uniformly distributed and arranged at a position area between the two driving motors. Driving power of the driving motor can be reduced, working intensity of the driving motor is reduced, and working stability of the compact shelving moving column is improved.

The invention discloses a permanent magnet rotary pressurizing liquid metal conveying pump set which comprises a pipeline and at least two rotating mechanisms, each rotating mechanism comprises a rotor and a plurality of permanent magnets fixedly arranged on the periphery of the rotor, the permanent magnets are evenly distributed in the circumferential direction of the rotor, and N poles and S poles of the permanent magnets alternately point to the center of the rotor; the axes of the rotors of the at least two rotating mechanisms are parallel and arranged at intervals, the pipeline sequentially bypasses the permanent magnets of the rotating mechanisms, and the center line of the pipeline is located in a plane perpendicular to the axes of the rotors. Acting force is applied to liquid metal in the pipeline through the multiple rotating mechanisms, so that the pressurizing effect is achieved, and the problem of large-flow and large-lift conveying of the liquid metal is solved; meanwhile, a plurality of rotating mechanisms are combined with a pipeline winding mode, so that the driving power required by each stage of rotating mechanism is reduced, the efficiency is improved, a yoke can be omitted, the overall size of the device can be reduced, and the eddy current loss is reduced; and finally, the requirements of energy consumption, high pressure and large flow are met.

The application discloses an atomizing device with a phonon lattice microstructure, which comprises a piezoelectric substrate, an interdigital transducer arranged on the surface of the piezoelectric substrate and a phonon lattice microstructure. The phonon lattice microstructure is arranged in front of the propagation direction of the surface acoustic wave emitted by the interdigital transducer. The phonon lattice microstructure comprises a plurality of lattice micro-units arranged in a lattice mode and a lattice micro-channel connected with the lattice micro-units. The lattice micro-units are uniformly arranged in the longitudinal and transverse directions along the propagation direction of the surface acoustic wave. The lattice micro-units are arranged as pits recessed on the surface of the piezoelectric substrate or bosses protruding from the surface. The lattice micro-channel and the lattice micro-units are both made of porous materials for permeating, transporting and storing atomized liquid. When the surface acoustic wave propagates to the phonon lattice microstructure, resonance is generated in the lattice micro-units. The surface of the lattice micro-units forms a liquid film and is further atomized. The surface acoustic wave can form resonance on the lattice micro-units, so that the energy of the surface acoustic wave is more efficiently coupled into the atomized liquid.

This invention discloses an upper sealing assembly and an annular cooler, relating to the field of annular cooler technology. Its main purpose is to avoid sealing deformation and leakage problems caused by the water tank's inability to hold enough water due to the movement of the trolley sideboard. The main technical solution of this invention is as follows: The upper sealing assembly is used in an annular cooler, which includes a sealing cover, a trolley sideboard, and a rotating frame. The sealing cover is disposed above the trolley sideboard, and the trolley sideboard is fixed relative to the rotating frame. The upper sealing assembly includes a water tank and an insert plate. The water tank is disposed on the side wall of the sealing cover, and the insert plate is fixed relative to the trolley sideboard, with at least a portion of the insert plate inserted into the water tank.