4results about How to "Improve deceleration efficiency" patented technology

The invention relates to an electromagnetic retarding system based on a pneumatic conveying pipeline and an application method. The system comprises the pneumatic conveying pipeline, an electromagnetic retarding container, an electromagnetic slow blowing steel pipe and an electromagnetic speed reduction assembly, and the electromagnetic retarding container comprises an inner container and a conductive shell arranged on the surface of the inner container in a sleeving mode; the inlet end of the electromagnetic slow blowing steel pipe communicates with the pneumatic conveying pipeline, the electromagnetic slow speed assembly comprises a pair of baffle rings and an electromagnetic speed reduction spiral set, the electromagnetic slow blowing steel pipe is sleeved with the baffle rings at intervals, and the electromagnetic speed reduction spiral set is wound between the baffle rings in the axial direction of the electromagnetic slow blowing steel pipe. The electromagnetic speed reduction spiral group is electrified to generate a first magnetic field for decelerating the electromagnetic speed reduction container, and the speed reduction effect of the first magnetic field is controlled by changing the current of the electromagnetic speed reduction spiral group or the number of electrified spiral lines; the speed reduction efficiency and the speed reduction force of the container can be independently designed according to the weight and the abrasion degree of the container, and different speed reduction effects are shown, so that the defects of an existing reverse airflow speed reduction technology are overcome.

The utility model discloses an automobile display screen self-locking turnover device which comprises a motor body, a reduction gear box and a self-locking mechanism, the reduction gear box comprises a sun gear, an inner gear ring, planet carrier assemblies, an upper end cover assembly and a lower end cover, and the planet carrier assemblies are connected in series and installed in the inner gear ring to achieve multi-stage large-transmission-ratio speed reduction. The self-locking mechanism comprises an output disc, a brake ring, a roller, a brake disc and an output shaft, disc protrusions are arranged on the outer side face of the output disc, disc protrusion grooves and roller grooves which are used for being matched with the disc protrusions and the roller are formed in the brake disc, the output disc and the brake disc are concentrically installed, the disc protrusions of the output disc are correspondingly clamped into the disc protrusion grooves of the brake disc, and the roller protrusions of the output disc are clamped into the roller grooves of the brake disc. The pin rollers are arranged in the pin roller grooves and located on the two sides of the disc protrusions, brake rings are installed on the peripheries of the brake disc and the output disc, and brake teeth are evenly distributed on the outer sides of the brake rings and used for being clamped into the tooth grooves of the inner gear ring. The device is compact in structure, high in efficiency, low in cost and capable of achieving speed reduction and providing larger self-locking force.

The invention relates to the technical field of hand wheel machines, and discloses a hand wheel machine assembling mechanism which comprises a hand wheel and a shell, a cavity is formed in the shell, a threaded rod is rotatably connected in the cavity, one end of the threaded rod is rotatably connected in the shell, and the other end of the threaded rod is fixedly connected with a sliding rod. One end of the sliding rod is fixedly connected with the threaded rod, the other end of the sliding rod is fixedly connected with a limiting plate, the end, close to the threaded rod, of the sliding rod is fixedly connected with a transmission wheel, the transmission wheel is arranged on the outer side of the sliding rod in a sleeving mode, the transmission wheel is fixedly connected with the sliding rod, the sliding rod is sleeved with a sliding wheel, and a penetrating hole is formed in the middle of the sliding wheel. According to the device, the purpose of rotating the hand wheel to drive the transmission wheel to rotate is achieved by rotating the hand wheel, pressing the sliding wheel to be close to the transmission wheel, forming tooth openings in the sliding wheel and the transmission wheel and meshing the sliding wheel with the transmission wheel, and the transmission wheel is fixedly connected with the sliding rod and the threaded rod, so that the threaded rod rotates.

The utility model provides a hollow bearing seat configuration structure of double one-way clutch of middle motor of electric bicycle, it contains: a hollow bearing seat and two one-way transmission devices with two different diameters, there is a flange outside the hollow bearing seat to combine with the chain tooth disc frame of pedal shaft, the hollow bearing seat is sleeved on the pedal shaft, and the smaller end of its diameter supports the first one-way transmission device, the one-way transmission device is directly integrated in the outer cover of motor, and the outer diameter of one end is sleeved with the planetary gear seat of motor reduction mechanism, the first one-way transmission device, on one hand, transmits the electric power of motor to the chain tooth disc frame of bicycle, and on the other hand, the rider's riding without electric power will not be affected by the magnetic hysteresis effect in the motor.