Hydraulic control system for cloth chute inclination positioning accuracy
A technology of hydraulic control system and distributing chute, which is applied to fluid pressure actuating device, blast furnace parts, bell and funnel arrangement, etc., can solve the problems of increased wear, increase, and inability to meet blast furnace process requirements, and achieves improved control Accuracy, uniform cloth surface, and the effect of improving service life
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[0039] Example one
[0040] Such as figure 2 As shown, the hydraulic control system for the positioning accuracy of the inclination angle of the distribution chute of the present invention includes a hydraulic synchronous motor 1, a proportional valve 2, a first hydraulic control check valve 3, and a second hydraulic control check valve 4. The proportional valve 2 in this embodiment adopts a three-position four-way electro-hydraulic proportional valve. Other types of proportional valves can of course also be used, as long as they can achieve the same function, such as a servo proportional valve. The proportional valve 2 has the functions of stepless speed regulation and precise control of the oil supply, and can accurately position the distribution chute. The port P of the proportional valve 2 is connected to a high-pressure hydraulic oil source. figure 2 The oil port P of the proportional valve 2 is connected to the hydraulic station P, that is, the low-pressure oil in the oil...
Example Embodiment
[0051] Example two
[0052] Such as image 3 As shown, the difference between this embodiment and the first embodiment is that the three branch oil pipes 13 are respectively connected to the three rod cavities 9 of the cylinder, and the three branches of the second pipe 8 are respectively connected to the rodless cavities of the three cylinders. 7Connect. The structure and working principle of the other parts are completely the same as those in the first embodiment, and will not be repeated here.
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