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    • 3. 发明授权
    • Overload protection in presses
    • 压机过载保护
    • US4492154A
    • 1985-01-08
    • US572305
    • 1984-01-20
    • Werner RuppJohannes Koch
    • Werner RuppJohannes Koch
    • B30B15/28B30B1/32
    • B30B15/284
    • An overload protection for presses in which the working stages are protected against overload by balance-like overload pressure-responsive devices; to further protect the press balance-like adding pressure-responsive devices are also used whose operating point adjusted to the limit loads of the connecting rods is adjusted to a smaller value than the sum of all of the balance-like overload pressure-responsive devices; the adding pressure-responsive devices are connected in parallel since the pressure space of each balance-like overload pressure-responsive device is connected to one pressure space each of each adding pressure-responsive device; the cross sectional areas of the pistons of the balance-like adding pressure-responsive devices are calculated from the distance of the working stages to the actuating planes; for the left adding pressure-responsive device, from the distance of the working stages to the right actuating plane whereas for the right adding pressure-responsive device, from the distance of the working stages to the left actuating plane. The pre-pressure in the pressure spaces is adjusted by way of pressure control devices supplied by pump aggregates.
    • 用于压力机的过载保护,其中通过平衡状过载压力响应装置保护工作级免于过载; 为了进一步保护按压平衡状态,也可以使用将调节到连杆的极限载荷的工作点调整到比所有平衡状过载压力响应装置总和小的加压装置。 由于每个平衡状过载压力响应装置的压力空间连接到每个加压响应装置中的一个压力空间,所以添加压力响应装置并联连接; 从工作台到致动平面的距离计算平衡状添加压力响应装置的活塞的横截面面积; 对于左添加压力响应装置,从工作级到右驱动平面的距离,而对于右增加压响应装置,从工作级到左致动平面的距离。 压力空间中的预压力通过由泵集料供应的压力控制装置进行调节。