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    • 1. 发明授权
    • Top-pan balance with an overload safety mechanism and a corner load sensor
    • 顶部平衡与过载安全机构和转角负载传感器
    • US08383965B2
    • 2013-02-26
    • US13108532
    • 2011-05-16
    • Detlev ErbenHelga CovicJochen Doerner
    • Detlev ErbenHelga CovicJochen Doerner
    • G01G21/24G01G23/02
    • G01G21/244G01G7/02G01G23/005
    • A top-pan balance having a pan, a weighing system, and an overload safety mechanism. The load cell (4) of the weighing system is connected to fixed points (1) on a housing of the weighing system by an upper connecting rod (2) and a lower connecting rod (3) as a parallel guide so as to be movable in the vertical direction. The pan is attached to a pan support (8/9) for securing against overload, the support being connected to the load cell through an auxiliary parallel guide (15/16) and through a biased spring element (17/18), whereby the pan is quasi rigidly coupled to the load cell in the permissible weighing range, but is only resiliently coupled to the load cell when the permissible weighing range is exceeded. At least one limit stop is fixed to the housing and limits the elastic deflection of the pan and the pan support in case of overload. An additional corner load sensor is provided between the pan support and the load cell, and the corner load sensor and the overload safety mechanism form a common assembly (7), wherein the corner load sensor is disposed behind the overload safety mechanism in the force flow direction from the pan to the load cell. Furthermore, the assembly is attached on the side of the load cell facing the connecting rods and extends into the space between the connecting rods.
    • 具有锅,称重系统和过载安全机构的顶部平衡盘。 称重系统的称重传感器(4)通过上连杆(2)和下连杆(3)连接到称重系统的壳体上的固定点(1),作为平行导向件,以便可移动 在垂直方向。 平底锅连接到锅支架(8/9)以防止过载,支撑件通过辅助平行导轨(15/16)和偏置弹簧元件(17/18)连接到测力传感器,由此 锅在允许的称重范围内准确地刚性耦合到测力传感器,但是当超过允许的称重范围时,它仅弹性耦合到称重传感器。 至少有一个限位挡块固定在壳体上,并限制了在过载情况下盘和支架的弹性变形。 在盘支架和称重传感器之间提供了一个附加的转角负载传感器,并且角负载传感器和过载安全机构形成一个共同的组件(7),其中拐角负载传感器设置在力流中的过载安全机构的后面 方向从锅到称重传感器。 此外,组件附接在负载单元面向连接杆的一侧并延伸到连接杆之间的空间中。