公开(公告)号：US07080824B1

公开(公告)日：2006-07-25

申请号：US10821429

申请日：2004-04-09

申请人： David W George ,  Glenn R. Bracegirdle ,  Joseph Peppard ,  Thomas G. Booth ,  Christopher E. Guth

发明人： David W George ,  Glenn R. Bracegirdle ,  Joseph Peppard ,  Thomas G. Booth ,  Christopher E. Guth

IPC分类号： B66D1/50 ,  B66D1/12

CPC分类号： B66D3/18

摘要： An improved chain motor drive controller is provided for a chain hoist. The system employs a position encoder including a position sensor located within the casing of the chain hoist to producing encoded electrical position signals. A motor pulley is mounted on the chain motor rotary drive shaft and is coupled by a cogged belt to rotate an encoder pulley that is mounted on the same shaft as the position sensor. A mechanical coupling is thereby provided entirely within the casing of the chain hoist to transmit rotary motion from the rotary drive shaft directly to the position sensor. Also, tracking circuitry, likewise located entirely within the chain hoist casing, receives electrically encoded destination signals and compares these to signals from the position sensor. The tracking circuitry accelerates rotation of the chain motor drive shaft starting from a stationary condition and decelerates rotation of the chain motor drive shaft as the differences between the encoded position signals and the encoded destination signals approach zero.

摘要翻译： 为链式起重机提供改进的链条电动机驱动控制器。 该系统采用位置编码器，该位置编码器包括位于链式起重机壳体内的位置传感器，以产生编码的电位置信号。 马达皮带轮安装在链条马达旋转驱动轴上，并通过齿槽带连接，以旋转安装在与位置传感器相同的轴上的编码器滑轮。 因此，机械联接器完全设置在链葫芦的壳体内，以将旋转驱动轴的旋转运动直接传递到位置传感器。 同样，完全位于链式起重机壳体内的跟踪电路也接收电编码的目的地信号并将其与来自位置传感器的信号进行比较。 跟踪电路从固定状态开始加速链电动机驱动轴的旋转，并且随着编码位置信号和编码的目的地信号之间的差异接近零，链条电动机驱动轴的旋转减速。

公开(公告)号：US07080825B1

公开(公告)日：2006-07-25

申请号：US10977852

申请日：2004-11-01

申请人： David W George ,  Glenn R. Bracegirdle ,  Joseph Peppard ,  Thomas G. Booth ,  Christopher E. Guth

发明人： David W George ,  Glenn R. Bracegirdle ,  Joseph Peppard ,  Thomas G. Booth ,  Christopher E. Guth

IPC分类号： B66D1/50 ,  B66D1/12

CPC分类号： B66D3/18

摘要： An improved chain motor drive controller is provided for a chain hoist. The system employs a position encoder including a position sensor located within the casing of the chain hoist to producing encoded electrical position signals. A motor pulley is mounted on the chain motor rotary drive shaft and is coupled by a cogged belt to rotate an encoder pulley that is mounted on the same shaft as the position sensor. A mechanical coupling is thereby provided entirely within the casing of the chain hoist to transmit rotary motion from the rotary drive shaft directly to the position sensor. Also, tracking circuitry, likewise located entirely within the chain hoist casing, receives electrically encoded destination signals and compares these to signals from the position sensor. The tracking circuitry accelerates rotation of the chain motor drive shaft starting from a stationary condition and decelerates rotation of the chain motor drive shaft as the differences between the encoded position signals and the encoded destination signals approach zero.

摘要翻译： 为链式起重机提供改进的链条电动机驱动控制器。 该系统采用位置编码器，该位置编码器包括位于链式起重机壳体内的位置传感器，以产生编码的电位置信号。 马达皮带轮安装在链条马达旋转驱动轴上，并通过齿槽带连接，以旋转安装在与位置传感器相同的轴上的编码器滑轮。 因此，机械联接器完全设置在链葫芦的壳体内，以将旋转驱动轴的旋转运动直接传递到位置传感器。 同样，完全位于链式起重机壳体内的跟踪电路也接收电编码的目的地信号并将其与来自位置传感器的信号进行比较。 跟踪电路从固定状态开始加速链电动机驱动轴的旋转，并且随着编码位置信号和编码的目的地信号之间的差异接近零，链条电动机驱动轴的旋转减速。

公开(公告)号：US06209852B1

公开(公告)日：2001-04-03

申请号：US09404689

申请日：1999-09-24

申请人： David W. George ,  Christopher E. Guth ,  Ivan J. Morgan ,  Glenn R. Bracegirdle ,  Thomas G. Booth ,  Richard J. Romano ,  Robert A. Fry

发明人： David W. George ,  Christopher E. Guth ,  Ivan J. Morgan ,  Glenn R. Bracegirdle ,  Thomas G. Booth ,  Richard J. Romano ,  Robert A. Fry

IPC分类号： B66D326

CPC分类号： B66D3/18 ,  B66D3/26

摘要： A chain hoist having a casing into which and with respect to which a chain travels is provided with an externally mounted position encoder assembly. A releasable connector, such as a ratchet strap, is employed to firmly but removably couple the position encoder assembly housing externally on the chain hoist casing. The releasable connector holds the position encoder assembly housing in a fixed position relative to the chain hoist casing. The position encoder assembly has a chain gear that is rotatably mounted relative to the position encoder assembly housing proximate to the chain access opening in the chain hoist casing. The precision encoder assembly chain gear engages the portion of the chain that is maintained under tension at a location externally of the chain hoist casing and rotates as the chain travels relative to the chain hoist casing. A releasable clamp is anchored relative to the position encoder assembly housing and is engageable to maintain engagement of the position encoder assembly chain gear with the chain. An encoder is mounted with respect to the position encoder assembly housing and detects rotational movement of the position encoder assembly chain gear. The sensor provides electrical output signals indicative of the extent and direction of rotational movement of the position encoder assembly chain gear. The position encoder assembly provides precise, reliable output signals indicative of the position of the chain relative to the chain hoist. The position encoder assembly may be readily removed from the chain hoist, and just as easily attached thereto.

摘要翻译： 具有外壳的链式起重机具有外部安装的位置编码器组件，链条行进在其上并与其相关联。 使用诸如棘轮带的可释放连接器来牢固地但可拆卸地将位置编码器组件壳体外部耦合在链式起重机壳体上。 可拆卸连接器将位置编码器组件壳体相对于链式起重机壳体保持在固定位置。 所述位置编码器组件具有链齿轮，所述链齿轮相对于靠近所述链式起重机壳体中的链条进入开口的位置编码器组件壳体可旋转地安装。 精密编码器组件链齿轮啮合在链条提升机壳体外部的位置上保持在张力下的链条的部分，并随着链条相对于链条葫芦壳体行进而旋转。 可释放的夹具相对于位置编码器组件壳体锚定并且可接合以保持位置编码器组件链齿轮与链条的接合。 编码器相对于位置编码器组件壳体安装并且检测位置编码器组件链齿轮的旋转运动。 传感器提供指示位置编码器组件链齿轮的旋转运动的程度和方向的电输出信号。 位置编码器组件提供指示链条相对于链葫芦的位置的精确，可靠的输出信号。 位置编码器组件可以容易地从链式起重机中移除，并且也容易地附接到链式起重机。