3results about How to "Avoid work accidents" patented technology

According to the magnetic steel assembling hydraulic device, the assembling efficiency is improved, the labor intensity is reduced, and industrial accidents are prevented. According to the technical scheme, a plunger pump set is adopted in a hydraulic system, and it is guaranteed that the oil cylinder assembling speed is high, and thrust is large; the hydraulic system is provided with a stacked hydraulic control one-way valve and a stacked one-way throttle valve, it is guaranteed that the oil cylinder can be reliably locked at any position of the whole stroke when magnetic steel is pressed, and the operation speed of the oil cylinder can be adjusted. An air cooling cooler is installed on an oil return way of the hydraulic system to cool hydraulic oil of the system, and a temperature and liquid level sensor is installed on the hydraulic system to guarantee that the oil temperature and the oil level of the hydraulic system are monitored in real time. The hydraulic system is provided with an overflow valve and a pressure sensor, so that the magnetic steel is prevented from being crushed due to overhigh pressure in the magnetic steel pressing process; the use environment is located in the north, a hydraulic system is provided with a heater, hydraulic oil is heated in winter, and the situation that a plunger pump cannot suck oil due to low temperature and high viscosity of the hydraulic oil is prevented; the hydraulic system is provided with an oil suction filter and an oil return filter to ensure that the cleanliness of the hydraulic system reaches the standard; the hydraulic hose connected with the oil cylinder is an ultra-flexible pipe, the bending radius is small, the service life is long, and the pressure-resistant grade is high. The press-fitting support is a high-strength structural steel welding part and is fixed to a workpiece. The oil cylinder is inversely installed on the press-fitting support, and a piston rod of the oil cylinder moves up and down to press-fit the magnetic steel.

This invention discloses a precise control method and system for aerial work platforms based on a proportional valve. The method includes inputting preset control parameters into a control device and operating it to output an initial current signal; acquiring the current signal in real time and converting it into a digital signal for transmission to an ARM processor; sequentially performing filtering, piecewise linearization, and PID dynamic compensation adjustment on the converted digital signal to generate a high-precision current command; based on the high-precision current command and combined with a preset piecewise mapping relationship between the current and the proportional valve opening degree, calculating and generating a control signal and outputting it to the drive module; the drive module analyzes the signal duty cycle and converts it into a drive current adapted to the proportional valve coil, inputting it to the proportional valve coil to precisely adjust the proportional valve opening degree; the proportional valve controls the precise movement of the aerial work platform, while the monitoring and protection module automatically locks the proportional valve and stops adjusting the opening degree when an abnormality is detected. This invention achieves precise control of the aerial work platform, improving operational stability, accuracy, and safety.

A workpiece conveying device for a gear forming machine includes a quantitative feeding mechanism, a feeding and gripping mechanism, a forming table, a transverse pushing assembly, a longitudinal pushing assembly, a transverse and longitudinal sliding table, and a guiding assembly. The quantitative feeding mechanism has a transmission disc and stacking assemblies arranged circumferentially therearound. A lifting mechanism sequentially lifts the stacked gears to the feeding position. The feeding and gripping mechanism grips the gears and places them at the feeding end of the forming table. The transverse and longitudinal pushing assemblies sequentially push the gears into the limiting grooves of the guiding assembly, where the transverse and longitudinal sliding tables precisely deliver them to the forming station. This device achieves automatic feeding and positioning of gears through automatic conveying, effectively replacing manual operation, reducing labor intensity, and greatly improving the production efficiency of the forming process.