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1. 发明授权

US3879725A Indicating apparatus for monitoring the operative status of a heading or coal face cutting machine 失效
标题翻译：用于监测航向或煤面切割机的运行状态的指示装置
公开(公告)号：US3879725A
公开(公告)日：1975-04-22
申请号：US39842273
申请日：1973-09-18
申请人： EICKHOFF GEB
发明人： WEBER KARL-HEINZ , NOHENDORF HANS
IPC分类号： E21C35/24 , E21D9/00 , G08B5/36
CPC分类号： E21D9/003 , E21C35/24
摘要： Mining machines, e.g., a coal tunneling machine or a coal face cutting machine, are provided with a sealed indicating apparatus to monitor the operative status of the machine. The indicating apparatus includes a plurality of indicating lamps connected electrically to circuitboards and projecting into openings in a perforated plate. These parts and a symbol plate are sealed within a housing that includes a transparent plate to view each illuminated symbol on the symbol plate representing monitoring locations in the machine. A transparent film with machine function symbols is placed on the outer surface of the transparent plate such that these symbols are aligned with the symbols on the symbol plate within the housing.
摘要翻译：采矿机，例如煤隧道掘进机或煤面切割机，设置有密封的指示装置以监测机器的操作状态。指示装置包括多个指示灯，其与电路板电连接并突出到多孔板中的开口中。这些部件和符号板被密封在包括透明板的壳体内，以观察代表机器中监视位置的符号板上的每个照明符号。具有机械功能符号的透明膜被放置在透明板的外表面上，使得这些符号与壳体内的符号板上的符号对准。

2. 发明授权

US3923151A Drive control system for an endless conveyor belt 失效
标题翻译：无级输送带驱动控制系统
公开(公告)号：US3923151A
公开(公告)日：1975-12-02
申请号：US40845273
申请日：1973-10-23
申请人： EICKHOFF GEB
发明人： WEBER KARL-HEINZ
IPC分类号： B65G23/00 , B65G43/00 , H02P5/50
CPC分类号： H02P5/50 , B65G23/00 , B65G43/00 , B65G2812/02148
摘要： A thyristor controlled power supply forms part of a control system for a drive motor to accelerate and decelerate an endless conveyor belt trained around a guide drum coupled to the drive motor. A tension drum is controllably positioned by a stepping motor to develop a predetermined tension in the conveyor belt. A firing circuit for the thyristors in the power supply lines is controlled by a regulator which receives signals corresponding to the actual tension and desired tension in the conveyor belt during acceleration and deceleration. In one form, these signals are provided by a tachometer coupled to the drive motor and a potentiometer with a motor-driven movable tap. The drive motor for the movable tap may be controlled by an integrating circuit to vary the speed of the tap during acceleration and deceleration of the belt. In a second form, the regulator receives a signal from a load sensor coupled in the drive train for the tension drum and a signal from a manually set potentiometer corresponding to the desired tensioning of the conveyor belt.
摘要翻译：可控硅控制的电源构成用于驱动电机的控制系统的一部分，以加速和减速围绕耦合到驱动电动机的引导鼓训练的环形传送带。张力鼓由步进电机可控地定位，以在传送带中产生预定的张力。用于供电线路中的晶闸管的点火电路由加速和减速期间接收对应于输送带中的实际张力和期望张力的信号的调节器控制。在一种形式中，这些信号由耦合到驱动电动机的转速计和具有电动可移动分接头的电位器提供。用于可动抽头的驱动电机可以通过积分电路来控制，以在带的加速和减速期间改变水龙头的速度。在第二种形式中，调节器接收来自耦合在用于张力鼓的传动系中的负载传感器的信号和来自对应于传送带的期望张紧的手动设置的电位计的信号。

3. 发明授权

US3891861A Device for monitoring the temperature of rotating machine parts 失效
标题翻译：用于监测旋转机器零件温度的装置
公开(公告)号：US3891861A
公开(公告)日：1975-06-24
申请号：US43587874
申请日：1974-01-23
申请人： EICKHOFF GEB
发明人： WEBER KARL-HEINZ , DINKELBACH ANTON
IPC分类号： F16D66/00 , G01K7/38 , G01K13/08 , H01H36/00
CPC分类号： G01K7/38 , F16D66/00 , F16D2066/001 , G01K13/08 , Y10T307/773
摘要： Non-contact temperature monitoring of a rotating machine element such as a brake drum by an apparatus including a ferromagnetic insert in the rotating machine element and shielded therefrom by non-magnetic, heat conductive material. An inductive pulse transmitter is arranged to form an air gap with the rotary moving insert. The transmitter delivers an electrical pulse in response to each passage of the insert during rotation thereof. The pulses are amplified and shaped before passing into an integrating circuit wherein the pulses form the control signal connected to a relay for interrupting a power supply to a drive for the rotating machine element when the temperature thereof exceeds Curie Point of the ferromagnetic material. When the Curie Point is exceeded, the insert becomes paramagnetic and fails to produce pulses and disrupts the control signal for the relay.
摘要翻译：通过包括在旋转机器元件中的铁磁插入件并且由非磁性导热材料屏蔽的设备的设备对诸如制动鼓的旋转机器元件进行非接触式温度监视。电感式脉冲发射器布置成与旋转移动插入件形成气隙。发射器响应于插入件在其旋转期间的每个通道而递送电脉冲。脉冲在进入积分电路之前被放大和成形，其中脉冲形成连接到继电器的控制信号，用于当其温度超过铁磁材料的居里点时，切断用于旋转机器元件的驱动器的电源。当超过居里点时，插入件变为顺磁性，不能产生脉冲并中断继电器的控制信号。

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