5results about How to "Realize start-stop control" patented technology

The utility model relates to the technical fields of afforesting and mowing device, concretely is a kind of self-adapting afforestation mower head, including machine cover, cutter and cutter driving part, the cutter is located below machine cover, and cutter driving part is connected with cutter and is arranged on the upper side of machine cover;It further includes detection rod;Supporting leg is symmetrically arranged on the left and right sides of the machine cover, the left and right ends of the detection rod respectively pass through first baffle and second baffle arranged on supporting leg, and buffer portion is arranged between first baffle and second baffle;The buffer portion includes reset spring that is sleeved on detection rod, one end of reset spring is on second baffle, the other end is on the blocking ring of detection rod, and the tail end of detection rod passes through second baffle;Cutter start-stop switch is arranged in the rear of second baffle.The utility model can trigger cutter start-stop switch in time, realize the start-stop control of cutter, effectively avoid the damage of protruding foreign matter to cutter.

This utility model relates to the field of power machinery technology and discloses a centrifugal mechanical power enhancer, including a support frame with a symmetrical support structure. One end is fixed with a reinforcing part, and the other end is rotatably connected to a second gear disk. The middle section supports a drive device. The drive device, using a motor structure, is located at the lower part of the support frame and is connected to the drive shaft via a chain to provide initial rotational power. The reinforcing part, the core power enhancement unit, includes: a first gear disk, coaxially connected to a connecting shaft, with an inner gear ring meshing with a drive gear, and circumferentially distributed mounting positions for the iron-throwing parts on the outer side; a positioning disk, coaxially arranged with the gear disk and maintaining a distance, rotatably connected to the support frame via bearings, providing a reaction force fulcrum for the iron-throwing parts; and three symmetrically arranged iron-throwing parts, each containing a 24 kg iron-throwing body. This utility model features a compact structure, efficient transmission, and enhanced power through the cooperation of the iron-throwing parts and gear disks. The electrical control cabinet allows for precise adjustment, adapting to different loads and exhibiting strong stability.

The utility model relates to an acid discharge metering system. The acid discharge metering system comprises an acid discharge pipe arranged between an acid storage tank and an acid vehicle; the flow meter is mounted on the acid discharging pipe; the electric switch valve is mounted on the acid discharge pipe and is positioned at the downstream of the flow meter; the electric control valve is mounted on the acid discharge pipe and is positioned at the downstream of the electric switch valve; the flow meter, the electric switch valve and the electric adjusting valve are all electrically connected with a controller. The automatic acid discharge metering system composed of the acid storage tank, the acid discharge pipe, the flow meter, the electric switch valve, the electric control valve and the controller is used for replacing a manual acid discharge metering mode, the electric switch valve and the electric control valve form a coarse adjustment and fine adjustment control mode, and accurate control over the acid discharge amount is ensured; the control precision and stability of the acid discharge metering system are improved through the cooperative working mode, so that the acid discharge error is reduced, and overload or air loss of an acid vehicle is avoided.

The invention provides a water quality sampler for environmental monitoring, and relates to the technical field of water quality sampling, the water quality sampler comprises a servo motor, the lower end surface of the servo motor is detachably connected with a connecting cylinder; three groups of pressure control water inlet mechanisms are arranged up and down at equal intervals, each pressure control water inlet mechanism comprises a mounting frame, four groups of water storage boxes up and down are arranged in the mounting frame, multiple groups of extrusion strips are arranged in the water storage boxes, two groups of fixing rings are coaxially arranged on the mounting frame, and the side walls of the fixing rings are fixedly connected with the side walls of the water storage boxes; the uppermost fixing ring is fixedly connected with the inner side wall of the connecting cylinder; three sampling mechanisms are further included, the three sampling mechanisms correspond to the pressure control water inlet mechanisms and comprise sampling discs, the sampling discs are rotationally connected into the mounting frame, and the outer surfaces of the sampling discs abut against the water storage box and the lower end face of the extrusion strip. The water quality sampler for environmental monitoring realizes unified collection of water samples at different depths in the same time period and water samples at the same depth and in different time periods.

This disclosure provides a ventilation system, control method, device, and related equipment for hydrogen-powered locomotives, relating to the field of hydrogen-powered locomotive technology. The ventilation system includes: a ventilation device for ventilating the hydrogen storage compartment of the hydrogen-powered locomotive; a time-delay switch circuit connected between a first power supply circuit of the hydrogen-powered locomotive and a second power supply circuit of the ventilation device, used to switch from an open state to a closed state when the first power supply circuit is on, and then switch back to an open state after a preset duration, wherein the second power supply circuit is on when the time-delay switch circuit is on; and a control device connected to the second power supply circuit, used to control the second power supply circuit to be on or off after the time-delay switch circuit switches from a closed state to an open state. This disclosure, through the proposed ventilation system, reduces the risks and hazards caused by hydrogen leakage in hydrogen-powered locomotives, providing a reliable guarantee for the safe operation of hydrogen-powered locomotives.