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1. 发明授权

US3693939A Tension control system 失效
标题翻译：张力控制系统
公开(公告)号：US3693939A
公开(公告)日：1972-09-26
申请号：US3693939D
申请日：1971-04-22
申请人： ALL AMERICAN IND
发明人： BUCKSON WILSON C
IPC分类号： B66C13/22 , B66D1/48
CPC分类号： B66C13/22 , B66C2700/08 , B66D1/48 , B66D2700/0108
摘要： The brake on an energy absorbing winch is controlled to maintain a predetermined tension in its line during payout by an electronic control circuit having a summing amplifier which operates the brake in response to several signals in various combinations. A signal corresponding to the deviation between the actual line tension and the preset tension is generated by a differential amplifier having inputs of actual and desired tension. Preliminarily and during initial payout, a derivative amplifier modulates the deviation and applies a corrective signal to the summing amplifier, which corresponds to the derivative of the tension deviation with respect to time. The derivative corrective signal immediately releases the brake on capture and initiation of payout. A switch removes the derivative signal from the summing amplifier as soon as the derivative changes polarity from negative to positive, and connects an error integral amplifier between the differential amplifier and the summing amplifier to stably control the braking pressure to obtain the predetermined tension. The standard source binds the error integral amplifier to the predetermined tension before the error integral amplifier is switched into the control circuit. The switching is accomplished by a modified Schmidt-Trigger, which is originally in the neutral state. The derivative amplifier is operatively connected to the Schmidt-Trigger circuit. When the derivative of the deviation originally goes negative, it cocks the trigger circuit. The trigger is actuated when the derivative becomes slightly positive to operate a relay, which disconnects the deviation derivative amplifier from the summing amplifier and replaces it by the deviation integral amplifier. At the end of the arrestment when the actual drag load is below the predetermined tension, the integral amplifier is driven to saturation which applies the full brake pressure during reelingin of the line.
摘要翻译：控制能量吸收绞盘上的制动器由具有加法放大器的电子控制电路在支付期间保持预定的张力，该加法放大器响应于各种组合的若干信号来操作制动器。通过具有实际和期望张力的输入的差分放大器产生对应于实际线张力和预设张力之间的偏差的信号。在初始支付期间，导数放大器调制偏差，并将校正信号施加到求和放大器，其对应于相对于时间的张力偏差的导数。导数校正信号立即释放捕捉和启动支付的制动。一旦导数将极性从负极变为正极，则开关从加法放大器中除去导数信号，并且连接差分放大器和求和放大器之间的误差积分放大器，以稳定地控制制动压力以获得预定的张力。在误差积分放大器切换到控制电路之前，标准源将误差积分放大器与预定的张力相结合。切换由修改后的施密特触发器完成，该触发器最初处于中性状态。导数放大器可操作地连接到施密特触发电路。当偏差的导数原来为负时，它会使触发电路起动。当导数稍微为正值操作继电器时，触发被激活，从而使偏移导数放大器与求和放大器断开，并由偏置积分放大器代替它。在实际拖曳负载低于预定的张力时，在停止结束时，积分放大器被驱动到饱和，在线路的回线期间施加全制动压力。

2. 发明授权

US2853666A Motor control apparatus 失效
标题翻译：电机控制装置
公开(公告)号：US2853666A
公开(公告)日：1958-09-23
申请号：US52107655
申请日：1955-07-11
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： CARL WELLINGTON C , RHYNE EARL C
IPC分类号： B66B1/30 , B66C13/22 , H02P27/02
CPC分类号： H02P27/026 , B66B1/30 , B66C13/22 , B66C2700/08

3. 发明申请

US20170275140A1 Three-power hybrid energy saving system of a rubber tyred gantry crane 审中-公开
公开(公告)号：US20170275140A1
公开(公告)日：2017-09-28
申请号：US15463241
申请日：2017-03-20
申请人： Shenzhen Zhaohan Technology Development Co., Ltd.
发明人： Ruixian ZHANG , Tonghui AN , Kai JIA , Pu HUANG , Zhiming YANG , Jinlian LU
IPC分类号： B66C13/22 , B60W20/00 , B66C13/12
CPC分类号： B66C13/22 , B60W20/00 , B60W2300/16 , B60W2710/305 , B60Y2200/416 , B66C13/12 , B66C13/28 , B66C19/00 , B66C19/007 , B66C2700/08 , Y10S903/903
摘要： A rubber tyred gantry crane three-power hybrid energy saving system comprising a system controller; a unidirectional AC/DC converter; a small diesel generator set having its output going to the unidirectional AC/DC converter and supplying power to a direct-current bus after rectification; a unidirectional DC/AC inverter power supply having its input end connected in parallel with the direct-current bus, and having output going to the auxiliary transformer after inversion; a battery set and its management system; an interconnection switch; a large diesel generator set; and an auxiliary transformer. Electrical equipment mainly includes a hoist frequency converter, a trolley frequency converter, a gantry frequency converter, auxiliary electrical equipment and a control power supply. The battery set and its management system are connected in parallel with the direct-current bus, provide operating power to the gantry frequency converter, the hoist frequency converter and the trolley frequency converter, and recover the feedback energy of the system.

4. 发明授权

US09409752B2 Method and apparatus for an emergency lowering kit 有权
标题翻译：紧急降压套件的方法和装置
公开(公告)号：US09409752B2
公开(公告)日：2016-08-09
申请号：US14444717
申请日：2014-07-28
申请人： Electronic Power Design, Inc.
发明人： Charles Sutherland
IPC分类号： H02P27/04 , B66C13/18 , B66C13/22 , H02P3/12 , G05B15/02 , B66C13/14 , B66C23/16 , B66C23/88
CPC分类号： B66C13/18 , B66C13/14 , B66C13/22 , B66C23/16 , B66C23/88 , B66C2700/08 , G05B15/02 , H02P3/12
摘要： A method and apparatus are disclosed for lowering a load on a direct current hoist motor during an electrical power interruption, the method including but not limited to determining in a crane processor that the electrical power interruption has occurred; and providing a brake assist current to shunt field on the direct current hoist motor to produce a counter torque in the hoist motor.
摘要翻译：公开了一种用于在电力中断期间降低直流电动提升电机的负载的方法和装置，该方法包括但不限于在起重机处理器中确定发生了电力中断; 并且提供制动辅助电流以分流直流电动马达上的励磁电流，以在起重电动机中产生反转矩。

5. 发明申请

US20150142177A1 METHOD AND APPARATUS FOR RETROFITTING A PEDESTAL CRANE 有权
标题翻译：改造起重式起重机的方法和装置
公开(公告)号：US20150142177A1
公开(公告)日：2015-05-21
申请号：US14444496
申请日：2014-07-28
申请人： Electronics Power Design, Inc.
发明人： BARRY JUSTIN ROWDEN
IPC分类号： B66C13/18 , G05B15/02
CPC分类号： B66C13/18 , B66C13/14 , B66C13/22 , B66C23/16 , B66C23/88 , B66C2700/08 , G05B15/02 , H02P3/12
摘要： A method and apparatus are disclosed for retrofitting a pedestal crane, the method comprising removing an existing motor generator controller for a motor in the pedestal crane; and replacing the motor generator controller with a digital controller.
摘要翻译：公开了一种用于改装基座起重机的方法和装置，该方法包括移除用于基座起重机中的电动机的现有电动发电机控制器; 并用数字控制器更换电动发电机控制器。

6. 发明申请

US20150130375A1 METHOD AND APPARATUS FOR AN EMERGENCY LOWERING KIT 有权
标题翻译：紧急降落套件的方法和装置
公开(公告)号：US20150130375A1
公开(公告)日：2015-05-14
申请号：US14444717
申请日：2014-07-28
申请人： Electronic Power Design, Inc.
发明人： Charles Sutherland
IPC分类号： B66C13/22 , H02P3/12 , B66C15/00
CPC分类号： B66C13/18 , B66C13/14 , B66C13/22 , B66C23/16 , B66C23/88 , B66C2700/08 , G05B15/02 , H02P3/12
摘要： A method and apparatus are disclosed for lowering a load on a direct current hoist motor during an electrical power interruption, the method including but not limited to determining in a crane processor that the electrical power interruption has occurred; and providing a brake assist current to shunt field on the direct current hoist motor to produce a counter torque in the hoist motor.
摘要翻译：公开了一种用于在电力中断期间降低直流电动提升电机的负载的方法和装置，该方法包括但不限于在起重机处理器中确定发生了电力中断; 并且提供制动辅助电流以分流直流电动马达上的励磁电流，以在起重电动机中产生反转矩。

7. 发明授权

US2814032A Protective apparatus for materialhandling equipment 失效
标题翻译：物料搬运设备用保护装置
公开(公告)号：US2814032A
公开(公告)日：1957-11-19
申请号：US56041756
申请日：1956-01-20
申请人： FEMCO INC
发明人： AGNEW NORMAN F , SORENSEN ANDREW J
IPC分类号： B66C13/22
CPC分类号： B66C13/22 , B66C2700/08

8. 发明申请

US20180229976A1 WINCH CONTROL APPARATUS AND CRANE 审中-公开
公开(公告)号：US20180229976A1
公开(公告)日：2018-08-16
申请号：US15889700
申请日：2018-02-06
申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) , Kobelco Construction Machinery Co., Ltd.
发明人： Hiroaki KAWAI , Takashi TOKUYAMA , Toshiaki SHIMODA , Koji INOUE , Tetsuya OGAWA , Shintaroh SASAI
IPC分类号： B66C13/22 , B66C23/62
CPC分类号： B66C13/22 , B66C13/28 , B66C23/62 , B66C2700/08 , B66D1/46
摘要： Disclosed is a winch control apparatus for a crane, which comprises: a first compensation torque value calculation section which calculates, when a hoisting manipulation being input, based on a difference speed between a detected rotational speed and a target speed according to a manipulation amount of the hoisting manipulation, a first compensation torque value for enabling an electric motor to generate a reverse-rotation-preventing torque which is a torque in a hoisting direction and corresponding to the difference speed; and a second compensation torque value calculation section which calculates, when the hoisting manipulation being input, based on a detected load value, a second compensation torque value for enabling the electric motor to generate a load bearing torque which is a torque in the hoisting direction and necessary for bearing a load of the load value.

9. 发明授权

US09938119B2 Method and apparatus for retrofitting a pedestal crane 有权
公开(公告)号：US09938119B2
公开(公告)日：2018-04-10
申请号：US14444496
申请日：2014-07-28
申请人： Electronic Power Design, Inc.
发明人： Berry Justin Rowden
IPC分类号： B66C13/18 , B66C13/22 , H02P3/12 , G05B15/02 , B66C13/14 , B66C23/16 , B66C23/88
CPC分类号： B66C13/18 , B66C13/14 , B66C13/22 , B66C23/16 , B66C23/88 , B66C2700/08 , G05B15/02 , H02P3/12
摘要： A method and apparatus are disclosed for retrofitting a pedestal crane, the method comprising removing an existing motor generator controller for a motor in the pedestal crane; and replacing the motor generator controller with a digital controller.

10. 发明申请

US20170088403A1 METHOD AND APPARATUS FOR AN EMERGENCY LOWERING KIT 审中-公开
公开(公告)号：US20170088403A1
公开(公告)日：2017-03-30
申请号：US15217016
申请日：2016-07-22
申请人： Electronic Power Design, Inc.
发明人： Charles Sutherland
IPC分类号： B66C13/22 , H02P3/12 , G05B15/02 , B66C13/14 , B66C23/88
CPC分类号： B66C13/18 , B66C13/14 , B66C13/22 , B66C23/16 , B66C23/88 , B66C2700/08 , G05B15/02 , H02P3/12
摘要： A method and apparatus are disclosed for lowering a load on a direct current hoist motor during an electrical power interruption, the method including but not limited to determining in a crane processor that the electrical power interruption has occurred; and providing a brake assist current to shunt field on the direct current hoist motor to produce a counter torque in the hoist motor.

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