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发明授权
CN1689957B 地面输送设备 有权

地面输送设备
摘要：
本发明涉及一种地面输送设备(1)，尤其是叉式装卸车，具有一个驱动部分(2)和一个承载部分(3)，其中，在承载部分(3)区域内设置有至少两个承载辊(10)，及在驱动部分(2)区域内设置有至少一个可转向的驱动轮(4)和至少一个转动辊(5a；5b)，它们可围绕一个垂直轴线转动并可垂直移动地被设置，并借助一个弹簧减震装置(12a；12b)进行支撑。为了改善地面输送设备的稳定性，弹簧减震装置(12a；12b)具有一个在转动辊(5a；5b)悬挂伸出和悬挂缩入时起作用的减震机构、尤其是一个液压式减震机构，和/或弹簧减震装置(12a；12b)具有渐变的弹簧特性曲线。
摘要（英）：

The present invention relates to an earth-conveying equipment (1), especially a fork lift truck which comprises a driving part (2) and a bearing part (3), wherein, the area of the bearing part (3) is arranged with at least two bearing rollers (10), the area of the driving part (2) is arranged with at least one rotatable driving wheel (4) and at least one rotating roller (5a and 5b) which can rotate around one vertical axis and are arranged while the vertical movement is allowed and are supported by means of one spring shock absorbing device (12a and 12b). To improve the stability of the earth-conveying equipment the spring shock absorbing device (12a and 12b) comprises a shock absorbing device which functions when the rotating roller (5a and 5b) suspending protrudes and suspending retreat, especially a hydraulic shock absorbing device, and/or the spring shock absorbing device (12a and 12b) comprises a transition spring characteristic curve.

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