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                新聞資訊

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                挖掘機工作裝置的空間力學特點有哪些?

                日期:2023-08-23   來源:http://www.amxspa.com/
                普通挖掘機的鏟斗只能單向挖掘,當復雜作業時需要頻繁調整整機位置,工作效率很低。此外,挖掘機功能單一,當換裝液壓錘等屬具時,更換過程復雜耗時。因此,部分挖掘機配備了快速更換裝置,以節省更換屬具的時間。傾斜旋轉器安裝在鏟斗與斗桿之間,可實現鏟斗等屬具360 ゜旋轉和左右45 ゜傾斜,以增加挖掘機作業的靈活性。傾斜旋轉器下方連接快換裝置可便于更換屬具,使挖掘機增加更多功能。
                The bucket of an ordinary excavator can only excavate in one direction, and when complex operations require frequent adjustment of the entire machine position, the work efficiency is very low. In addition, the excavator has a single function, and when replacing accessories such as hydraulic hammers, the replacement process is complex and time-consuming. Therefore, some excavators are equipped with quick replacement devices to save time on replacing accessories. The tilt rotator is installed between the bucket and the stick, which can achieve 360 ° rotation and 45 ° tilt of the bucket and other accessories to increase the flexibility of excavator operation. The quick change device connected below the tilt rotator can facilitate the replacement of accessories, adding more functions to the excavator.
                加裝傾斜旋轉器后,由于鏟斗等屬具的對稱平面在工作中可能與斗桿平面不同面,從而導致對工作裝置產生附加彎矩和扭矩。傳統設計方法是基于工作裝置在同一平面的平面力學問題,此情況下已經不再適用。對于未安裝傾斜旋轉器的挖掘機受力分析,史青錄等考慮了偏載和橫向載荷并轉換為斗桿與鏟斗鉸接點的附加力矩和橫向載荷。劉春麗等在分析挖掘機快換裝置的結果分析時,未考慮由于傾斜旋轉器的作用而產生的附加力矩。
                加長臂挖掘機
                After installing a tilt rotator, the symmetry plane of the bucket and other accessories may be different from the plane of the stick during operation, resulting in additional bending moments and torques on the working device. The traditional design method is based on planar mechanical problems where the working device is in the same plane, which is no longer applicable in this situation. For the force analysis of excavators without tilt rotators installed, Shi Qinglu et al. considered eccentric load and lateral load and converted them into additional torque and lateral load at the joint of the bucket rod and bucket. Liu Chunli et al. did not consider the additional torque generated by the tilt rotator when analyzing the results of the excavator quick change device.
                1)基于理論力學中空間力系的平衡條件,實現了挖掘機工作裝置的空間受力分析,解決了其空間受力的問題,所得結果是關于挖掘機工作裝置位姿的解。
                1) Based on the equilibrium conditions of the spatial force system in theoretical mechanics, the spatial force analysis of the excavator working device was achieved, and the problem of its spatial force was solved. The obtained result is a solution for the posture of the excavator working device.
                2)根據挖掘機工作裝置結構和受力的特點,采用劃分桿組的方法將其劃分為4 個桿組,通過計算其中一個桿組的受力,推導出其他桿組的受力,簡化了挖掘機工作裝置的受力分析計算。
                2) According to the structure and force characteristics of the excavator working device, it is divided into four rod groups using the method of dividing rod groups. By calculating the force on one rod group, the force on the other rod groups is derived, simplifying the force analysis and calculation of the excavator working device.
                3)通過對空間受力和平面受力結果的比較,驗證了本方法的正確性和兼容性,解決了安裝了傾斜旋轉器的挖掘機的空間受力分析問題,為有限元分析提供的載荷數據基礎。
                3) By comparing the results of spatial and planar forces, the correctness and compatibility of this method were verified, and the problem of spatial force analysis for excavators with tilt rotators was solved, providing a load data basis for finite element analysis.

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